cli: loose string comparison helper

diff --git a/parsers.c b/parsers.c
index a01f041802c20eceed66754c27542deff5be925b..707bcdd5a7e67e5b93c20aec127704bd8a76eef1 100644 (file)
--- a/parsers.c
+++ b/parsers.c
@@ -181,3 +181,36 @@ struct sr_dev *parse_devstring(const char *devstring)
 
        return dev;
 }
+
+char *strcanon(char *str)
+{
+       int p0, p1;
+       char *s;
+
+       /* Returns newly allocated string. */
+       s = g_ascii_strdown(str, -1);
+       for (p0 = p1 = 0; str[p0]; p0++) {
+               if ((s[p0] >= 'a' && s[p0] <= 'z')
+                               || (s[p0] >= '0' && s[p0] <= '9'))
+                       s[p1++] = s[p0];
+       }
+       s[p1] = '\0';
+
+       return s;
+}
+
+
+int canon_cmp(char *str1, char *str2)
+{
+       int ret;
+       char *s1, *s2;
+
+       s1 = strcanon(str1);
+       s2 = strcanon(str2);
+       ret = g_ascii_strcasecmp(s1, s2);
+       g_free(s2);
+       g_free(s1);
+
+       return ret;
+}
+

diff --git a/sigrok-cli.h b/sigrok-cli.h
index d231670d7babccb6bd80ac879b25d9b24cc3c85a..8c57ef3a7d4860f58656b651cbae184c51e04090 100644 (file)
--- a/sigrok-cli.h
+++ b/sigrok-cli.h
@@ -29,6 +29,8 @@ char **sr_parse_triggerstring(struct sr_dev *dev, const char *triggerstring);
 GHashTable *parse_generic_arg(const char *arg);
 struct sr_dev *parse_devstring(const char *devstring);
 uint64_t sr_parse_timestring(const char *timestring);
+char *strcanon(char *str);
+int canon_cmp(char *str1, char *str2);
 
 /* anykey.c */
 void add_anykey(void);