Trim spaces of font family strings

This adds a trimming utility function that is used for trimming strings
of font requests in the font sorter.

1 files changed, 19 insertions, 1 deletions

diff --git a/libass/ass_utils.c b/libass/ass_utils.c
index a6a063b1..0fc8b2a5 100644
--- a/libass/ass_utils.c
+++ b/libass/ass_utils.c
@@ -24,7 +24,7 @@
 #include <stdint.h>
 #include <inttypes.h>
 #include <strings.h>
-#include <limits.h>
+#include <ctype.h>
 
 #include "ass_library.h"
 #include "ass.h"
@@ -331,6 +331,24 @@ void ass_msg(ASS_Library *priv, int lvl, char *fmt, ...)
     va_end(va);
 }
 
+char *trim_space(char *str)
+{
+    int i;
+    int left = 0;
+    int right = strlen(str) - 1;
+
+    while (isspace(str[left])) left++;
+    while (isspace(str[right])) right--;
+
+    if (left > 0)
+        for (i = 0; i <= right - left; i++)
+            str[i] = str[left+i];
+
+    str[right-left+1] = '\0';
+
+    return str;
+}
+
 unsigned ass_utf8_get_char(char **str)
 {
     uint8_t *strp = (uint8_t *) * str;