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add escape api command to escape a string

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15764 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Mathieu Rene
2009-12-03 02:37:05 +00:00
parent 0b4bd3e1c1
commit 302355202a
3 changed files with 60 additions and 0 deletions
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45
src/switch_utils.c
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@@ -1577,6 +1577,51 @@ static char unescape_char(char escaped)
return unescaped;
}
SWITCH_DECLARE(char *) switch_escape_string(const char *in, char *out, switch_size_t outlen)
{
const char *p;
char *o = out;
for(p = in; *p; p++) {
switch(*p) {
case '\n':
*o++ = '\\';
*o++ = 'n';
break;
case '\r':
*o++ = '\\';
*o++ = 'r';
break;
case '\t':
*o++ = '\\';
*o++ = 't';
break;
case ' ':
*o++ = '\\';
*o++ = 's';
break;
case '$':
*o++ = '\\';
*o++ = '$';
break;
default:
*o++ = *p;
break;
}
}
*o++ = '\0';
return out;
}
SWITCH_DECLARE(char*) switch_escape_string_pool(const char *in, switch_memory_pool_t *pool)
{
int len = strlen(in)*2;
char *buf = switch_core_alloc(pool, len);
return switch_escape_string(in, buf, len);
}
/* Helper function used when separating strings to remove quotes, leading /
trailing spaces, and to convert escaped characters. */
static char *cleanup_separated_string(char *str, char delim)