From 1acdae4f1234b305a352de81166e74b9cbc84f3d Mon Sep 17 00:00:00 2001
From: Tilghman Lesher <tilghman@meg.abyt.es>
Date: Mon, 15 Oct 2007 17:51:05 +0000
Subject: [PATCH] Document my changes from Friday
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@85633 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
funcs/func_strings.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/funcs/func_strings.c b/funcs/func_strings.c
index a648c6cdae..d8327b5ceb 100644
--- a/funcs/func_strings.c
+++ b/funcs/func_strings.c
@@ -223,6 +223,13 @@ static struct ast_custom_function filter_function = {
.synopsis = "Filter the string to include only the allowed characters",
.syntax = "FILTER(<allowed-chars>,<string>)",
.read = filter,
+ .desc =
+"Permits all characters listed in <allowed-chars>, filtering all others out.\n"
+"In addition to literally listing the characters, you may also use ranges of\n"
+"characters (delimited by a '-'), as well as hexadecimal characters started\n"
+"with a \\x (i.e. \\x20) and octal characters started with \\0 (i.e. \\040).\n"
+"Also, \\t, \\n, and \\r are recognized. If you want a literal '-' character,\n"
+"simply prefix it with a '\\'\n",
};
static int regex(struct ast_channel *chan, const char *cmd, char *parse, char *buf,
--
GitLab