poparpser: avoid endless loop

when a string like 'xx %8' appears, strchr will capture a '%'. but it's
not a sysdep string, so variable `x` is not changed. then strchr will
repeat this process over and over again.

now, we first copy the content before '%'(including '%'), and refer x to
the first character after '%'. then we match and replace sysdep strings.
or just continue, since x is now behind '%', strchr wont repeat the
process again.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/poparser.c b/src/poparser.c
index feeaca5..49ee0ee 100644
--- a/src/poparser.c
+++ b/src/poparser.c
@@ -361,13 +361,14 @@ size_t poparser_sysdep(const char *in, char *out, int cnt[]) {
 
 	while ((y = strchr(x, '%'))) {
 		y++;
+		if (outs)
+			memcpy(out, x, y-x);
+		out += y-x;
+		x = y;
 
 		for (n=0; n < st_max; n++) {
 			m = strlen(sysdep_str[n]);
 			if (!strncmp(y, sysdep_str[n], m)) {
-				if (outs)
-					memcpy(out, x, y-x);
-				out += y-x;
 				x = y + m;
 
 				y = sysdep_repl[n][cnt[n]+1];