# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1288447355 -10800
# Node ID 3896861974acb051c0bb8ca050dc1adce7243aee
# Parent  352ec3c300e48227787c11d74ff6c14aed33f5c6
Added th_get_hex_triplet().

diff -r 352ec3c300e4 -r 3896861974ac th_string.c
--- a/th_string.c	Sat Oct 30 15:19:34 2010 +0300
+++ b/th_string.c	Sat Oct 30 17:02:35 2010 +0300
@@ -418,3 +418,24 @@
     return didMatch;
 }
 
+
+int th_get_hex_triplet(const char *str)
+{
+    const char *p = str;
+    int len, val = 0;
+    
+    for (len = 0; *p && len < 6; p++, len++) {
+        if (*p >= '0' && *p <= '9') {
+            val *= 16; val += (*p - '0');
+        } else if (*p >= 'A' && *p <= 'F') {
+            val *= 16; val += (*p - 'A') + 10;
+        } else if (*p >= 'a' && *p <= 'f') {
+            val *= 16; val += (*p - 'a') + 10;
+        } else
+            return -1;
+    }
+    
+    return (len == 6) ? val : -1;
+}
+
+
diff -r 352ec3c300e4 -r 3896861974ac th_string.h
--- a/th_string.h	Sat Oct 30 15:19:34 2010 +0300
+++ b/th_string.h	Sat Oct 30 17:02:35 2010 +0300
@@ -61,6 +61,7 @@
 BOOL    th_strmatch(const char *, const char *);
 BOOL    th_strcasematch(const char *, const char *);
 
+int     th_get_hex_triplet(const char *);
 
 #ifdef __cplusplus
 }