* a!b ==> a'\!'b ==> 'a'\!'b'
*/
#undef EMIT
-#define EMIT(x) ( (++len < n) && (*bp++ = (x)) )
+#define EMIT(x) do { if (++len < n) *bp++ = (x); } while(0)
static inline int need_bs_quote(char c)
{
return len;
}
+void sq_quote_print(FILE *stream, const char *src)
+{
+ char c;
+
+ fputc('\'', stream);
+ while ((c = *src++)) {
+ if (need_bs_quote(c)) {
+ fputs("'\\", stream);
+ fputc(c, stream);
+ fputc('\'', stream);
+ } else {
+ fputc(c, stream);
+ }
+ }
+ fputc('\'', stream);
+}
+
char *sq_quote(const char *src)
{
char *buf;
return buf;
}
+char *sq_quote_argv(const char** argv, int count)
+{
+ char *buf, *to;
+ int i;
+ size_t len = 0;
+
+ /* Count argv if needed. */
+ if (count < 0) {
+ for (count = 0; argv[count]; count++)
+ ; /* just counting */
+ }
+
+ /* Special case: no argv. */
+ if (!count)
+ return xcalloc(1,1);
+
+ /* Get destination buffer length. */
+ for (i = 0; i < count; i++)
+ len += sq_quote_buf(NULL, 0, argv[i]) + 1;
+
+ /* Alloc destination buffer. */
+ to = buf = xmalloc(len + 1);
+
+ /* Copy into destination buffer. */
+ for (i = 0; i < count; ++i) {
+ *to++ = ' ';
+ to += sq_quote_buf(to, len, argv[i]);
+ }
+
+ return buf;
+}
+
+/*
+ * Append a string to a string buffer, with or without shell quoting.
+ * Return true if the buffer overflowed.
+ */
+int add_to_string(char **ptrp, int *sizep, const char *str, int quote)
+{
+ char *p = *ptrp;
+ int size = *sizep;
+ int oc;
+ int err = 0;
+
+ if (quote)
+ oc = sq_quote_buf(p, size, str);
+ else {
+ oc = strlen(str);
+ memcpy(p, str, (size <= oc) ? size - 1 : oc);
+ }
+
+ if (size <= oc) {
+ err = 1;
+ oc = size - 1;
+ }
+
+ *ptrp += oc;
+ **ptrp = '\0';
+ *sizep -= oc;
+ return err;
+}
+
char *sq_dequote(char *arg)
{
char *dst = arg;
case '\\': /* fallthru */
case '"': EMITQ(); break;
- case ' ':
- break;
default:
/* octal */
EMITQ();
case '\\': case '"':
break; /* verbatim */
- case '0'...'7':
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
/* octal */
ac = ((ch - '0') << 6);
if ((ch = *sp++) < '0' || '7' < ch)
else
goto no_quote;
}
+
+/* quoting as a string literal for other languages */
+
+void perl_quote_print(FILE *stream, const char *src)
+{
+ const char sq = '\'';
+ const char bq = '\\';
+ char c;
+
+ fputc(sq, stream);
+ while ((c = *src++)) {
+ if (c == sq || c == bq)
+ fputc(bq, stream);
+ fputc(c, stream);
+ }
+ fputc(sq, stream);
+}
+
+void python_quote_print(FILE *stream, const char *src)
+{
+ const char sq = '\'';
+ const char bq = '\\';
+ const char nl = '\n';
+ char c;
+
+ fputc(sq, stream);
+ while ((c = *src++)) {
+ if (c == nl) {
+ fputc(bq, stream);
+ fputc('n', stream);
+ continue;
+ }
+ if (c == sq || c == bq)
+ fputc(bq, stream);
+ fputc(c, stream);
+ }
+ fputc(sq, stream);
+}