| |
| |
| |
| @@ -23,12 +23,41 @@ |
| #include "common.h" |
| #include "escape.h" |
| |
| +/* ESCAPE-TRACE (scripts/escape_trace.diff, instrumentation only): append one |
| + * line per call to /tmp/escape_trace.log with the number of examined |
| + * characters of each class and of buffer growths. Changes no result. */ |
| +static void |
| +escape_trace (const char *func, int sp, int hi, int pl, int ct, int grow) |
| +{ |
| + FILE *f = fopen ("/tmp/escape_trace.log", "a"); |
| + if (!f) |
| + return; |
| + fprintf (f, "ESCAPE-TRACE %s in=%d special=%d high=%d plain=%d ctl=%d grow=%d\n", |
| + func, sp + hi + pl + ct, sp, hi, pl, ct, grow); |
| + fclose (f); |
| +} |
| +#define ESCAPE_COUNT(c, sp, hi, pl, ct) \ |
| + do \ |
| + { \ |
| + if ((c) >= 127) \ |
| + hi++; \ |
| + else if ((c) == 34 || (c) == 39 || (c) == 38 || (c) == 60 || (c) == 62 \ |
| + || (c) == 96 || (c) == 123 || (c) == 125) \ |
| + sp++; \ |
| + else if ((c) >= 20) \ |
| + pl++; \ |
| + else \ |
| + ct++; \ |
| + } \ |
| + while (0) |
| + |
| char * ATTRIBUTE_MALLOC |
| htmlescape (const char *restrict src, const int cp) |
| { |
| int len; |
| char *dest, *d, *end; |
| unsigned char *s; |
| + int nsp = 0, nhi = 0, npl = 0, nct = 0, ngrow = 0; |
| if (!src) |
| return NULL; |
| len = strlen (src) + 10; |
| @@ -46,7 +75,9 @@ |
| d = dest + off; |
| *d = 0; |
| end = dest + len; |
| + ngrow++; |
| } |
| + ESCAPE_COUNT (*s, nsp, nhi, npl, nct); |
| switch (*s) |
| { |
| case '"': |
| @@ -97,6 +128,7 @@ |
| s++; |
| } |
| *d = 0; |
| + escape_trace ("htmlescape", nsp, nhi, npl, nct, ngrow); |
| return dest; |
| } |
| |
| @@ -107,6 +139,7 @@ |
| char *dest, *d; |
| BITCODE_TU tmp = wstr; |
| BITCODE_RS c; |
| + int nsp = 0, nhi = 0, npl = 0, nct = 0, ngrow = 0; |
| |
| if (!wstr) |
| return NULL; |
| @@ -123,7 +156,9 @@ |
| len += 16; |
| dest = realloc (dest, len); |
| d = dest + off; |
| + ngrow++; |
| } |
| + ESCAPE_COUNT (*wstr, nsp, nhi, npl, nct); |
| switch (*wstr) |
| { |
| case 34: strcat (d, """); d += 6; break; |
| @@ -145,5 +180,6 @@ |
| } |
| } |
| *d = 0; |
| + escape_trace ("htmlwescape", nsp, nhi, npl, nct, ngrow); |
| return dest; |
| } |
|
|
