0001-add-support-for-trimming-whitespaces-from-strings.patch

From 3b5bfecc666e8f09f3b6629f0f3f89e1b8ed619a Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Fri, 29 Nov 2013 12:09:53 +0100
Subject: [PATCH 1/1] add support for trimming whitespaces from strings

---
 src/core/settings.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/src/core/settings.c b/src/core/settings.c
index 03ef084..aa127f3 100644
--- a/src/core/settings.c
+++ b/src/core/settings.c
@@ -1666,6 +1666,40 @@
        .format = format_string_setting,
 };

+/**
+ * Format trimmed string setting value
+ *
+ * @v type             Setting type
+ * @v raw              Raw setting value
+ * @v raw_len          Length of raw setting value
+ * @v buf              Buffer to contain formatted value
+ * @v len              Length of buffer
+ * @ret len            Length of formatted value, or negative error
+ */
+static int format_string_trim_setting ( struct setting_type *type __unused,
+                                  const void *raw, size_t raw_len, char *buf,
+                                  size_t len ) {
+
+       char * end;
+
+       /* call plain string format first */
+       raw_len = format_string_setting (type, raw, raw_len, buf, len);
+
+       /* then cut all trailing spaces */
+       end = buf + raw_len;
+       while (end > buf && (*end == ' ' || *end == 0))
+               *end-- = 0;
+
+       return end - buf;
+}
+
+/** A trimmed string setting type */
+const struct setting_type setting_type_string_trim __setting_type = {
+       .name = "trim",
+       .parse = parse_string_setting,
+       .format = format_string_trim_setting,
+};
+
 /** A URI-encoded string setting type
  *
  * This setting type is obsolete; the name ":uristring" is retained to