Instruction stringlengths 45 106 | input_code stringlengths 1 13.7k | output_code stringlengths 1 13.7k |
|---|---|---|
Transform the following Mathematica implementation into Java, maintaining the same output and logic. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Preserve the algorithm and functionality while converting the code from Mathematica to Java. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Please provide an equivalent version of this Mathematica code in Python. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Produce a language-to-language conversion: from Mathematica to Python, same semantics. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Change the following Mathematica code into VB without altering its purpose. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Change the following Mathematica code into VB without altering its purpose. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Please provide an equivalent version of this Mathematica code in Go. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Convert this Mathematica block to Go, preserving its control flow and logic. | iCSV=Import["test.csv"]
->{{"C1","C2","C3","C4","C5"},{1,5,9,13,17},{2,6,10,14,18},{3,7,11,15,19},{4,8,12,16,20}}
iCSV = Transpose@
Append[Transpose[iCSV], Join[{"Sum"}, Total /@ Drop[iCSV, 1]]];
iCSV // MatrixForm
Export["test.csv",iCSV];
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Translate this program into C but keep the logic exactly as in MATLAB. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Transform the following MATLAB implementation into C, maintaining the same output and logic. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Please provide an equivalent version of this MATLAB code in C#. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Generate an equivalent C# version of this MATLAB code. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Write the same algorithm in C++ as shown in this MATLAB implementation. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Write the same code in C++ as shown below in MATLAB. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Can you help me rewrite this code in Java instead of MATLAB, keeping it the same logically? | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Rewrite the snippet below in Java so it works the same as the original MATLAB code. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Write the same code in Python as shown below in MATLAB. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Port the following code from MATLAB to Python with equivalent syntax and logic. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Change the following MATLAB code into VB without altering its purpose. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Preserve the algorithm and functionality while converting the code from MATLAB to VB. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Transform the following MATLAB implementation into Go, maintaining the same output and logic. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Change the programming language of this snippet from MATLAB to Go without modifying what it does. | filename='data.csv';
fid = fopen(filename);
header = fgetl(fid);
fclose(fid);
X = dlmread(filename,',',1,0);
fid = fopen('data.out.csv','w+');
fprintf(fid,'
for k=1:size(X,1),
fprintf(fid,"
fprintf(fid,"
end;
fclose(fid);
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Produce a functionally identical C code for the snippet given in Nim. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Convert this Nim snippet to C and keep its semantics consistent. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Rewrite this program in C# while keeping its functionality equivalent to the Nim version. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Rewrite the snippet below in C# so it works the same as the original Nim code. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Rewrite this program in C++ while keeping its functionality equivalent to the Nim version. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Convert this Nim block to C++, preserving its control flow and logic. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Keep all operations the same but rewrite the snippet in Java. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Preserve the algorithm and functionality while converting the code from Nim to Python. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Generate a Python translation of this Nim snippet without changing its computational steps. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Convert the following code from Nim to VB, ensuring the logic remains intact. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Ensure the translated VB code behaves exactly like the original Nim snippet. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Write the same algorithm in Go as shown in this Nim implementation. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Translate the given Nim code snippet into Go without altering its behavior. | import strutils, streams
let
csv = newFileStream("data.csv", fmRead)
outf = newFileStream("data-out.csv", fmWrite)
var lineNumber = 1
while true:
if atEnd(csv):
break
var line = readLine(csv)
if lineNumber == 1:
line.add(",SUM")
else:
var sum = 0
for n in split(line, ","):
sum += parseInt(n)
line.add(",")
line.add($sum)
outf.writeLine(line)
inc lineNumber
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Convert this OCaml snippet to C and keep its semantics consistent. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Keep all operations the same but rewrite the snippet in C. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Preserve the algorithm and functionality while converting the code from OCaml to C#. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Can you help me rewrite this code in C# instead of OCaml, keeping it the same logically? | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Produce a language-to-language conversion: from OCaml to C++, same semantics. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Please provide an equivalent version of this OCaml code in C++. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Change the following OCaml code into Java without altering its purpose. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Convert the following code from OCaml to Java, ensuring the logic remains intact. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Transform the following OCaml implementation into Python, maintaining the same output and logic. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Convert this OCaml block to Python, preserving its control flow and logic. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Port the following code from OCaml to VB with equivalent syntax and logic. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Rewrite the snippet below in VB so it works the same as the original OCaml code. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Preserve the algorithm and functionality while converting the code from OCaml to Go. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Translate the given OCaml code snippet into Go without altering its behavior. | let list_add_last this lst =
List.rev (this :: (List.rev lst))
let () =
let csv = Csv.load "data.csv" in
let fields, data =
(List.hd csv,
List.tl csv)
in
let fields =
list_add_last "SUM" fields
in
let sums =
List.map (fun row ->
let tot = List.fold_left (fun tot this -> tot + int_of_string this) 0 row in
list_add_last (string_of_int tot) row
) data
in
Csv.output_all (Csv.to_channel stdout) (fields :: sums)
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Keep all operations the same but rewrite the snippet in C. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Preserve the algorithm and functionality while converting the code from Pascal to C. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Translate the given Pascal code snippet into C# without altering its behavior. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Ensure the translated C# code behaves exactly like the original Pascal snippet. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Convert this Pascal block to C++, preserving its control flow and logic. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Please provide an equivalent version of this Pascal code in C++. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Write a version of this Pascal function in Java with identical behavior. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Write the same code in Java as shown below in Pascal. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Convert this Pascal block to Python, preserving its control flow and logic. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Ensure the translated VB code behaves exactly like the original Pascal snippet. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Convert this Pascal snippet to VB and keep its semantics consistent. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Produce a language-to-language conversion: from Pascal to Go, same semantics. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Produce a functionally identical Go code for the snippet given in Pascal. | program CSV_Data_Manipulation;
uses Classes, SysUtils;
var s: string;
ts: tStringList;
inFile,
outFile: Text;
Sum: integer;
Number: string;
begin
Assign(inFile,'input.csv');
Reset(inFile);
Assign(outFile,'result.csv');
Rewrite(outFile);
ts:=tStringList.Create;
ts.StrictDelimiter:=True;
ReadLn(inFile,s);
ts.CommaText:=s;
ts.Add('SUM');
WriteLn(outFile,ts.CommaText);
while not eof(inFile) do
begin
ReadLn(inFile,s);
ts.CommaText:=s;
Sum:=0;
for Number in ts do
Sum+=StrToInt(Number);
ts.Add('%D',[Sum]);
writeln(outFile, ts.CommaText);
end;
Close(outFile);
Close(inFile);
ts.Free;
end.
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Please provide an equivalent version of this Perl code in C. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Translate this program into C but keep the logic exactly as in Perl. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Write the same algorithm in C# as shown in this Perl implementation. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Can you help me rewrite this code in C# instead of Perl, keeping it the same logically? |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Transform the following Perl implementation into C++, maintaining the same output and logic. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Convert this Perl snippet to C++ and keep its semantics consistent. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Change the following Perl code into Java without altering its purpose. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Generate an equivalent Java version of this Perl code. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Write the same code in Python as shown below in Perl. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Rewrite the snippet below in Python so it works the same as the original Perl code. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Produce a functionally identical VB code for the snippet given in Perl. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Translate this program into VB but keep the logic exactly as in Perl. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Port the provided Perl code into Go while preserving the original functionality. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Write a version of this Perl function in Go with identical behavior. |
use warnings;
use strict;
use List::Util 'sum';
my @header = split /,/, <>;
chomp $header[-1];
my %column_number;
for my $i (0 .. $
$column_number{$header[$i]} = $i;
}
my @rows = map [ split /,/ ], <>;
chomp $_->[-1] for @rows;
$_->[1]++ for @rows;
$_->[ $column_number{C4} ] += $_->[ $column_number{C1} ] for @rows;
push @header, 'Sum';
$column_number{Sum} = $
push @$_, sum(@$_) for @rows;
push @rows, [
map {
my $col = $_;
sum(map $_->[ $column_number{$col} ], @rows);
} @header
];
print join(',' => @header), "\n";
print join(',' => @$_), "\n" for @rows;
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Write the same algorithm in C as shown in this PowerShell implementation. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Please provide an equivalent version of this PowerShell code in C. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Convert this PowerShell block to C#, preserving its control flow and logic. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Translate this program into C# but keep the logic exactly as in PowerShell. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Rewrite the snippet below in C++ so it works the same as the original PowerShell code. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Produce a language-to-language conversion: from PowerShell to C++, same semantics. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Rewrite the snippet below in Java so it works the same as the original PowerShell code. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Rewrite this program in Java while keeping its functionality equivalent to the PowerShell version. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Keep all operations the same but rewrite the snippet in Python. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Maintain the same structure and functionality when rewriting this code in Python. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Maintain the same structure and functionality when rewriting this code in VB. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Rewrite the snippet below in VB so it works the same as the original PowerShell code. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| Sub ReadCSV()
Workbooks.Open Filename:="L:\a\input.csv"
Range("F1").Value = "Sum"
Range("F2:F5").Formula = "=SUM(A2:E2)"
ActiveWorkbook.SaveAs Filename:="L:\a\output.csv", FileFormat:=xlCSV
ActiveWindow.Close
End Sub
|
Please provide an equivalent version of this PowerShell code in Go. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Generate a Go translation of this PowerShell snippet without changing its computational steps. |
@"
C1,C2,C3,C4,C5
1,5,9,13,17
2,6,10,14,18
3,7,11,15,19
4,8,12,16,20
"@ -split "`r`n" | Out-File -FilePath .\Temp.csv -Force
$records = Import-Csv -Path .\Temp.csv
$sums = $records | ForEach-Object {
[int]$sum = 0
foreach ($field in $_.PSObject.Properties.Name)
{
$sum += $_.$field
}
$sum
}
$records = for ($i = 0; $i -lt $sums.Count; $i++)
{
$records[$i] | Select-Object *,@{Name='Sum';Expression={$sums[$i]}}
}
$records | Export-Csv -Path .\Temp.csv -Force
$records | Format-Table -AutoSize
| package main
import (
"encoding/csv"
"log"
"os"
"strconv"
)
func main() {
rows := readSample()
appendSum(rows)
writeChanges(rows)
}
func readSample() [][]string {
f, err := os.Open("sample.csv")
if err != nil {
log.Fatal(err)
}
rows, err := csv.NewReader(f).ReadAll()
f.Close()
if err != nil {
log.Fatal(err)
}
return rows
}
func appendSum(rows [][]string) {
rows[0] = append(rows[0], "SUM")
for i := 1; i < len(rows); i++ {
rows[i] = append(rows[i], sum(rows[i]))
}
}
func sum(row []string) string {
sum := 0
for _, s := range row {
x, err := strconv.Atoi(s)
if err != nil {
return "NA"
}
sum += x
}
return strconv.Itoa(sum)
}
func writeChanges(rows [][]string) {
f, err := os.Create("output.csv")
if err != nil {
log.Fatal(err)
}
err = csv.NewWriter(f).WriteAll(rows)
f.Close()
if err != nil {
log.Fatal(err)
}
}
|
Keep all operations the same but rewrite the snippet in C. | write.csv(df, file = "foo.csv",row.names = FALSE)
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Translate the given R code snippet into C without altering its behavior. | write.csv(df, file = "foo.csv",row.names = FALSE)
| #define TITLE "CSV data manipulation"
#define URL "http:
#define _GNU_SOURCE
#define bool int
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
typedef struct {
char * delim;
unsigned int rows;
unsigned int cols;
char ** table;
} CSV;
int trim(char ** str) {
int trimmed;
int n;
int len;
len = strlen(*str);
n = len - 1;
while((n>=0) && isspace((*str)[n])) {
(*str)[n] = '\0';
trimmed += 1;
n--;
}
n = 0;
while((n < len) && (isspace((*str)[0]))) {
(*str)[0] = '\0';
*str = (*str)+1;
trimmed += 1;
n++;
}
return trimmed;
}
int csv_destroy(CSV * csv) {
if (csv == NULL) { return 0; }
if (csv->table != NULL) { free(csv->table); }
if (csv->delim != NULL) { free(csv->delim); }
free(csv);
return 0;
}
CSV * csv_create(unsigned int cols, unsigned int rows) {
CSV * csv;
csv = malloc(sizeof(CSV));
csv->rows = rows;
csv->cols = cols;
csv->delim = strdup(",");
csv->table = malloc(sizeof(char *) * cols * rows);
if (csv->table == NULL) { goto error; }
memset(csv->table, 0, sizeof(char *) * cols * rows);
return csv;
error:
csv_destroy(csv);
return NULL;
}
char * csv_get(CSV * csv, unsigned int col, unsigned int row) {
unsigned int idx;
idx = col + (row * csv->cols);
return csv->table[idx];
}
int csv_set(CSV * csv, unsigned int col, unsigned int row, char * value) {
unsigned int idx;
idx = col + (row * csv->cols);
csv->table[idx] = value;
return 0;
}
void csv_display(CSV * csv) {
int row, col;
char * content;
if ((csv->rows == 0) || (csv->cols==0)) {
printf("[Empty table]\n");
return ;
}
printf("\n[Table cols=%d rows=%d]\n", csv->cols, csv->rows);
for (row=0; row<csv->rows; row++) {
printf("[|");
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
printf("%s\t|", content);
}
printf("]\n");
}
printf("\n");
}
int csv_resize(CSV * old_csv, unsigned int new_cols, unsigned int new_rows) {
unsigned int cur_col,
cur_row,
max_cols,
max_rows;
CSV * new_csv;
char * content;
bool in_old, in_new;
new_csv = csv_create(new_cols, new_rows);
if (new_csv == NULL) { goto error; }
new_csv->rows = new_rows;
new_csv->cols = new_cols;
max_cols = (new_cols > old_csv->cols)? new_cols : old_csv->cols;
max_rows = (new_rows > old_csv->rows)? new_rows : old_csv->rows;
for (cur_col=0; cur_col<max_cols; cur_col++) {
for (cur_row=0; cur_row<max_rows; cur_row++) {
in_old = (cur_col < old_csv->cols) && (cur_row < old_csv->rows);
in_new = (cur_col < new_csv->cols) && (cur_row < new_csv->rows);
if (in_old && in_new) {
content = csv_get(old_csv, cur_col, cur_row);
csv_set(new_csv, cur_col, cur_row, content);
} else if (in_old) {
content = csv_get(old_csv, cur_col, cur_row);
free(content);
} else { }
}
}
free(old_csv->table);
old_csv->rows = new_rows;
old_csv->cols = new_cols;
old_csv->table = new_csv->table;
new_csv->table = NULL;
csv_destroy(new_csv);
return 0;
error:
printf("Unable to resize CSV table: error %d - %s\n", errno, strerror(errno));
return -1;
}
int csv_open(CSV * csv, char * filename) {
FILE * fp;
unsigned int m_rows;
unsigned int m_cols, cols;
char line[2048];
char * lineptr;
char * token;
fp = fopen(filename, "r");
if (fp == NULL) { goto error; }
m_rows = 0;
m_cols = 0;
while(fgets(line, sizeof(line), fp) != NULL) {
m_rows += 1;
cols = 0;
lineptr = line;
while ((token = strtok(lineptr, csv->delim)) != NULL) {
lineptr = NULL;
trim(&token);
cols += 1;
if (cols > m_cols) { m_cols = cols; }
csv_resize(csv, m_cols, m_rows);
csv_set(csv, cols-1, m_rows-1, strdup(token));
}
}
fclose(fp);
csv->rows = m_rows;
csv->cols = m_cols;
return 0;
error:
fclose(fp);
printf("Unable to open %s for reading.", filename);
return -1;
}
int csv_save(CSV * csv, char * filename) {
FILE * fp;
int row, col;
char * content;
fp = fopen(filename, "w");
for (row=0; row<csv->rows; row++) {
for (col=0; col<csv->cols; col++) {
content = csv_get(csv, col, row);
fprintf(fp, "%s%s", content,
((col == csv->cols-1) ? "" : csv->delim) );
}
fprintf(fp, "\n");
}
fclose(fp);
return 0;
}
int main(int argc, char ** argv) {
CSV * csv;
printf("%s\n%s\n\n",TITLE, URL);
csv = csv_create(0, 0);
csv_open(csv, "fixtures/csv-data-manipulation.csv");
csv_display(csv);
csv_set(csv, 0, 0, "Column0");
csv_set(csv, 1, 1, "100");
csv_set(csv, 2, 2, "200");
csv_set(csv, 3, 3, "300");
csv_set(csv, 4, 4, "400");
csv_display(csv);
csv_save(csv, "tmp/csv-data-manipulation.result.csv");
csv_destroy(csv);
return 0;
}
|
Can you help me rewrite this code in C# instead of R, keeping it the same logically? | write.csv(df, file = "foo.csv",row.names = FALSE)
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Preserve the algorithm and functionality while converting the code from R to C#. | write.csv(df, file = "foo.csv",row.names = FALSE)
| using System.IO;
using System.Linq;
namespace CSV_data_manipulation
{
class Program
{
static void Main()
{
var input = File.ReadAllLines("test_in.csv");
var output = input.Select((line, i) =>
{
if (i == 0)
return line + ",SUM";
var sum = line.Split(',').Select(int.Parse).Sum();
return line + "," + sum;
}).ToArray();
File.WriteAllLines("test_out.csv", output);
}
}
}
|
Port the provided R code into C++ while preserving the original functionality. | write.csv(df, file = "foo.csv",row.names = FALSE)
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Maintain the same structure and functionality when rewriting this code in C++. | write.csv(df, file = "foo.csv",row.names = FALSE)
| #include <map>
#include <vector>
#include <iostream>
#include <fstream>
#include <utility>
#include <functional>
#include <string>
#include <sstream>
#include <algorithm>
#include <cctype>
class CSV
{
public:
CSV(void) : m_nCols( 0 ), m_nRows( 0 )
{}
bool open( const char* filename, char delim = ',' )
{
std::ifstream file( filename );
clear();
if ( file.is_open() )
{
open( file, delim );
return true;
}
return false;
}
void open( std::istream& istream, char delim = ',' )
{
std::string line;
clear();
while ( std::getline( istream, line ) )
{
unsigned int nCol = 0;
std::istringstream lineStream(line);
std::string cell;
while( std::getline( lineStream, cell, delim ) )
{
m_oData[std::make_pair( nCol, m_nRows )] = trim( cell );
nCol++;
}
m_nCols = std::max( m_nCols, nCol );
m_nRows++;
}
}
bool save( const char* pFile, char delim = ',' )
{
std::ofstream ofile( pFile );
if ( ofile.is_open() )
{
save( ofile );
return true;
}
return false;
}
void save( std::ostream& ostream, char delim = ',' )
{
for ( unsigned int nRow = 0; nRow < m_nRows; nRow++ )
{
for ( unsigned int nCol = 0; nCol < m_nCols; nCol++ )
{
ostream << trim( m_oData[std::make_pair( nCol, nRow )] );
if ( (nCol+1) < m_nCols )
{
ostream << delim;
}
else
{
ostream << std::endl;
}
}
}
}
void clear()
{
m_oData.clear();
m_nRows = m_nCols = 0;
}
std::string& operator()( unsigned int nCol, unsigned int nRow )
{
m_nCols = std::max( m_nCols, nCol+1 );
m_nRows = std::max( m_nRows, nRow+1 );
return m_oData[std::make_pair(nCol, nRow)];
}
inline unsigned int GetRows() { return m_nRows; }
inline unsigned int GetCols() { return m_nCols; }
private:
inline std::string &trim(std::string &s)
{
s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
return s;
}
private:
std::map<std::pair<unsigned int, unsigned int>, std::string> m_oData;
unsigned int m_nCols;
unsigned int m_nRows;
};
int main()
{
CSV oCSV;
oCSV.open( "test_in.csv" );
oCSV( 0, 0 ) = "Column0";
oCSV( 1, 1 ) = "100";
oCSV( 2, 2 ) = "200";
oCSV( 3, 3 ) = "300";
oCSV( 4, 4 ) = "400";
oCSV.save( "test_out.csv" );
return 0;
}
|
Convert the following code from R to Java, ensuring the logic remains intact. | write.csv(df, file = "foo.csv",row.names = FALSE)
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Port the following code from R to Java with equivalent syntax and logic. | write.csv(df, file = "foo.csv",row.names = FALSE)
| import java.io.*;
import java.awt.Point;
import java.util.HashMap;
import java.util.Scanner;
public class CSV {
private HashMap<Point, String> _map = new HashMap<Point, String>();
private int _cols;
private int _rows;
public void open(File file) throws FileNotFoundException, IOException {
open(file, ',');
}
public void open(File file, char delimiter)
throws FileNotFoundException, IOException {
Scanner scanner = new Scanner(file);
scanner.useDelimiter(Character.toString(delimiter));
clear();
while(scanner.hasNextLine()) {
String[] values = scanner.nextLine().split(Character.toString(delimiter));
int col = 0;
for ( String value: values ) {
_map.put(new Point(col, _rows), value);
_cols = Math.max(_cols, ++col);
}
_rows++;
}
scanner.close();
}
public void save(File file) throws IOException {
save(file, ',');
}
public void save(File file, char delimiter) throws IOException {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int row = 0; row < _rows; row++) {
for (int col = 0; col < _cols; col++) {
Point key = new Point(col, row);
if (_map.containsKey(key)) {
bw.write(_map.get(key));
}
if ((col + 1) < _cols) {
bw.write(delimiter);
}
}
bw.newLine();
}
bw.flush();
bw.close();
}
public String get(int col, int row) {
String val = "";
Point key = new Point(col, row);
if (_map.containsKey(key)) {
val = _map.get(key);
}
return val;
}
public void put(int col, int row, String value) {
_map.put(new Point(col, row), value);
_cols = Math.max(_cols, col+1);
_rows = Math.max(_rows, row+1);
}
public void clear() {
_map.clear();
_cols = 0;
_rows = 0;
}
public int rows() {
return _rows;
}
public int cols() {
return _cols;
}
public static void main(String[] args) {
try {
CSV csv = new CSV();
csv.open(new File("test_in.csv"));
csv.put(0, 0, "Column0");
csv.put(1, 1, "100");
csv.put(2, 2, "200");
csv.put(3, 3, "300");
csv.put(4, 4, "400");
csv.save(new File("test_out.csv"));
} catch (Exception e) {
}
}
}
|
Translate the given R code snippet into Python without altering its behavior. | write.csv(df, file = "foo.csv",row.names = FALSE)
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
Generate a Python translation of this R snippet without changing its computational steps. | write.csv(df, file = "foo.csv",row.names = FALSE)
| import fileinput
changerow, changecolumn, changevalue = 2, 4, '"Spam"'
with fileinput.input('csv_data_manipulation.csv', inplace=True) as f:
for line in f:
if fileinput.filelineno() == changerow:
fields = line.rstrip().split(',')
fields[changecolumn-1] = changevalue
line = ','.join(fields) + '\n'
print(line, end='')
|
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