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/* ISC license. */
#include <errno.h>
#include <skalibs/bytestr.h>
#include <skalibs/fmtscan.h>
#include <skalibs/stralloc.h>
#include <skalibs/skamisc.h>
int string_quote_nodelim_mustquote (stralloc *sa, char const *s, unsigned int len, char const *delim, unsigned int delimlen)
{
char class[256] = "dddddddaaaaaaaddddddddddddddddddcccccccccccccccceeeeeeeeeeccccccccccccccccccccccccccccccccccbcccceeeeeecccccccecccececececcccccddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd" ;
unsigned int base = sa->len ;
unsigned int i = 0 ;
int wasnull = !sa->s ;
for (; i < delimlen ; i++)
if (class[(unsigned char)delim[i]] == 'c')
class[(unsigned char)delim[i]] = 'b' ;
else return (errno = EINVAL, 0) ;
for (i = 0 ; i < len ; i++)
{
switch (class[(unsigned char)s[i]])
{
case 'a' :
{
static char const tab[7] = "abtnvfr" ;
char fmt[2] = "\\" ;
fmt[1] = tab[s[i] - 7] ;
if (!stralloc_catb(sa, fmt, 2)) goto err ;
break ;
}
case 'b' :
{
char fmt[2] = "\\" ;
fmt[1] = s[i] ;
if (!stralloc_catb(sa, fmt, 2)) goto err ;
break ;
}
case 'c' :
case 'e' :
{
if (!stralloc_catb(sa, s+i, 1)) goto err ;
break ;
}
case 'd' :
{
char fmt[5] = "\\0x" ;
ucharn_fmt(fmt+3, s+i, 1) ;
if (!stralloc_catb(sa, fmt, 5)) goto err ;
break ;
}
default : errno = EFAULT ; goto err ; /* can't happen */
}
}
return 1 ;
err:
if (wasnull) stralloc_free(sa) ; else sa->len = base ;
return 0 ;
}
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