X-Git-Url: http://git.tremily.us/?a=blobdiff_plain;f=config.c;fp=config.c;h=aefd80b12a079d4a3c91d43c8a2c33ed6fbd0a38;hb=099ba556d05571001293c8eda10a4fc659f83f48;hp=5a20de3fa62b46d73cc0b13bf5d50aefac78fac6;hpb=149a4211a4b8d8bbcdd72685d538d6ac7365e29e;p=git.git

diff --git a/config.c b/config.c
index 5a20de3fa..aefd80b12 100644
--- a/config.c
+++ b/config.c
@@ -1681,3 +1681,36 @@ int config_error_nonbool(const char *var)
 {
 	return error("Missing value for '%s'", var);
 }
+
+int parse_config_key(const char *var,
+		     const char *section,
+		     const char **subsection, int *subsection_len,
+		     const char **key)
+{
+	int section_len = strlen(section);
+	const char *dot;
+
+	/* Does it start with "section." ? */
+	if (prefixcmp(var, section) || var[section_len] != '.')
+		return -1;
+
+	/*
+	 * Find the key; we don't know yet if we have a subsection, but we must
+	 * parse backwards from the end, since the subsection may have dots in
+	 * it, too.
+	 */
+	dot = strrchr(var, '.');
+	*key = dot + 1;
+
+	/* Did we have a subsection at all? */
+	if (dot == var + section_len) {
+		*subsection = NULL;
+		*subsection_len = 0;
+	}
+	else {
+		*subsection = var + section_len + 1;
+		*subsection_len = dot - *subsection;
+	}
+
+	return 0;
+}