for (s = string; s && (c = *s); s++)
{
- if (sh_syntaxtab[c] & CBSDQUOTE)
+ /* Backslash-newline disappears within double quotes, so don't add one. */
+ if ((sh_syntaxtab[c] & CBSDQUOTE) && c != '\n')
*r++ = '\\';
else if (c == CTLESC || c == CTLNUL)
*r++ = CTLESC; /* could be '\\'? */
return (result);
}
+/* Turn S into a simple double-quoted string. If FLAGS is non-zero, quote
+ double quote characters in S with backslashes. */
+char *
+sh_mkdoublequoted (s, slen, flags)
+ const char *s;
+ int slen, flags;
+{
+ char *r, *ret;
+ int rlen;
+
+ rlen = (flags == 0) ? slen + 3 : (2 * slen) + 1;
+ ret = r = (char *)xmalloc (rlen);
+
+ *r++ = '"';
+ while (*s)
+ {
+ if (flags && *s == '"')
+ *r++ = '\\';
+ *r++ = *s++;
+ }
+ *r++ = '"';
+ *r = '\0';
+
+ return ret;
+}
+
/* Remove backslashes that are quoting characters that are special between
double quotes. Return a new string. XXX - should this handle CTLESC
and CTLNUL? */
}
/* Quote special characters in STRING using backslashes. Return a new
- string. */
+ string. NOTE: if the string is to be further expanded, we need a
+ way to protect the CTLESC and CTLNUL characters. As I write this,
+ the current callers will never cause the string to be expanded without
+ going through the shell parser, which will protect the internal
+ quoting characters. */
char *
sh_backslash_quote (string)
char *string;
*r++ = '\\';
*r++ = c;
break;
-#endif
+
case CTLESC: case CTLNUL: /* internal quoting characters */
*r++ = CTLESC; /* could be '\\'? */
*r++ = c;
break;
+#endif
case '#': /* comment char */
if (s == string)