File size: 2,945 Bytes
b2265c0 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | diff --git a/programs/escape.c b/programs/escape.c
--- a/programs/escape.c
+++ b/programs/escape.c
@@ -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;
}
|