From 432de709d1560fdc861901bc64f19b68a4b2011b Mon Sep 17 00:00:00 2001
From: Bert Vermeulen <bert@biot.com>
Date: Tue, 29 May 2012 12:12:51 +0200
Subject: [PATCH 1/1] cli: loose string comparison helper

---
 parsers.c    | 33 +++++++++++++++++++++++++++++++++
 sigrok-cli.h |  2 ++
 2 files changed, 35 insertions(+)

diff --git a/parsers.c b/parsers.c
index a01f041..707bcdd 100644
--- 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 d231670..8c57ef3 100644
--- 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);
-- 
2.30.2