From f4433d1930604fff9aae684b33d3d49714b46d6b Mon Sep 17 00:00:00 2001
From: Kyle Meyer <kyle@kyleam.com>
Date: Wed, 10 Jun 2015 21:08:51 -0400
Subject: Recognize touch function

The touch flag was just recently documented:
https://groups.google.com/d/msg/Snakemake/ZxUo20DV2KE/0S1rBj0XzwQJ
---
 NEWS              | 2 +-
 snakemake-mode.el | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/NEWS b/NEWS
index bd31b76..c6228d4 100644
--- a/NEWS
+++ b/NEWS
@@ -5,7 +5,7 @@
 ** New features
 
 - The keywords 'configfile', 'onsuccess', 'onerror', 'log', and
-  'benchmark' are now recognized.
+  'benchmark', as well as the 'touch' function, are now recognized.
 
 - Indentation for field values starting on the line below a field key
   is now supported.  New variable `snakemake-indent-value-offset'
diff --git a/snakemake-mode.el b/snakemake-mode.el
index 4a20236..ddae88b 100644
--- a/snakemake-mode.el
+++ b/snakemake-mode.el
@@ -112,7 +112,7 @@
 
 (defconst snakemake-builtin-function-re
   (rx (group symbol-start
-             (or "expand" "shell" "protected" "temp" "dynamic"))
+             (or "expand" "shell" "protected" "temp" "dynamic" "touch"))
       "(")
   "Regexp matching a call to a builtin Snakemake function.")
 
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