index 009e69494b007fc7bfe590029c144d9ce41aa6b5..7218a7080d9a4282530b58c013606c86e4a5fdf5 100644 (file)
--- a/quote.c
+++ b/quote.c
#undef EMIT
#define EMIT(x) ( (++len < n) && (*bp++ = (x)) )
#undef EMIT
#define EMIT(x) ( (++len < n) && (*bp++ = (x)) )
+static inline int need_bs_quote(char c)
+{
+ return (c == '\'' || c == '!');
+}
+
size_t sq_quote_buf(char *dst, size_t n, const char *src)
{
char c;
size_t sq_quote_buf(char *dst, size_t n, const char *src)
{
char c;
EMIT('\'');
while ((c = *src++)) {
EMIT('\'');
while ((c = *src++)) {
- if (c == '\'' || c == '!') {
+ if (need_bs_quote(c)) {
EMIT('\'');
EMIT('\\');
EMIT(c);
EMIT('\'');
EMIT('\\');
EMIT(c);
return buf;
}
return buf;
}
+char *sq_dequote(char *arg)
+{
+ char *dst = arg;
+ char *src = arg;
+ char c;
+
+ if (*src != '\'')
+ return NULL;
+ for (;;) {
+ c = *++src;
+ if (!c)
+ return NULL;
+ if (c != '\'') {
+ *dst++ = c;
+ continue;
+ }
+ /* We stepped out of sq */
+ switch (*++src) {
+ case '\0':
+ *dst = 0;
+ return arg;
+ case '\\':
+ c = *++src;
+ if (need_bs_quote(c) && *++src == '\'') {
+ *dst++ = c;
+ continue;
+ }
+ /* Fallthrough */
+ default:
+ return NULL;
+ }
+ }
+}
+
/*
* C-style name quoting.
*
/*
* C-style name quoting.
*
* but not enclosed in double-quote pair. Return value is undefined.
*/
* but not enclosed in double-quote pair. Return value is undefined.
*/
-int quote_c_style(const char *name, char *outbuf, FILE *outfp, int no_dq)
+static int quote_c_style_counted(const char *name, int namelen,
+ char *outbuf, FILE *outfp, int no_dq)
{
#undef EMIT
#define EMIT(c) \
{
#undef EMIT
#define EMIT(c) \
if (!no_dq)
EMIT('"');
if (!no_dq)
EMIT('"');
- for (sp = name; (ch = *sp++); ) {
-
+ for (sp = name; sp < name + namelen; sp++) {
+ ch = *sp;
+ if (!ch)
+ break;
if ((ch < ' ') || (ch == '"') || (ch == '\\') ||
(ch == 0177)) {
needquote = 1;
if ((ch < ' ') || (ch == '"') || (ch == '\\') ||
(ch == 0177)) {
needquote = 1;
return needquote ? count : 0;
}
return needquote ? count : 0;
}
+int quote_c_style(const char *name, char *outbuf, FILE *outfp, int no_dq)
+{
+ int cnt = strlen(name);
+ return quote_c_style_counted(name, cnt, outbuf, outfp, no_dq);
+}
+
/*
* C-style name unquoting.
*
/*
* C-style name unquoting.
*
}
}
}
}
-void write_name_quoted(const char *prefix, const char *name,
- int quote, FILE *out)
+void write_name_quoted(const char *prefix, int prefix_len,
+ const char *name, int quote, FILE *out)
{
int needquote;
if (!quote) {
no_quote:
{
int needquote;
if (!quote) {
no_quote:
- if (prefix && prefix[0])
- fputs(prefix, out);
+ if (prefix_len)
+ fprintf(out, "%.*s", prefix_len, prefix);
fputs(name, out);
return;
}
needquote = 0;
fputs(name, out);
return;
}
needquote = 0;
- if (prefix && prefix[0])
- needquote = quote_c_style(prefix, NULL, NULL, 0);
+ if (prefix_len)
+ needquote = quote_c_style_counted(prefix, prefix_len,
+ NULL, NULL, 0);
if (!needquote)
needquote = quote_c_style(name, NULL, NULL, 0);
if (needquote) {
fputc('"', out);
if (!needquote)
needquote = quote_c_style(name, NULL, NULL, 0);
if (needquote) {
fputc('"', out);
- if (prefix && prefix[0])
- quote_c_style(prefix, NULL, out, 1);
+ if (prefix_len)
+ quote_c_style_counted(prefix, prefix_len,
+ NULL, out, 1);
quote_c_style(name, NULL, out, 1);
fputc('"', out);
}
quote_c_style(name, NULL, out, 1);
fputc('"', out);
}