From 54e02f64a15b3a2c679399575a53b69f65bc6514 Mon Sep 17 00:00:00 2001
From: jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Wed, 8 Jul 2009 06:32:08 +0000
Subject: [PATCH] Adds short commandline parameter handling in GRC.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@11376 221aa14e-8319-0410-a670-987f0aec2ac5
---
 grc/blocks/parameter.xml   | 12 +++++++++++-
 grc/python/Param.py        |  7 +++++++
 grc/python/flow_graph.tmpl |  2 +-
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/grc/blocks/parameter.xml b/grc/blocks/parameter.xml
index 21e5f04b..682f626e 100644
--- a/grc/blocks/parameter.xml
+++ b/grc/blocks/parameter.xml
@@ -16,6 +16,12 @@
 		<type>string</type>
 		<hide>#if $label() then 'none' else 'part'#</hide>
 	</param>
+	<param>
+	        <name>Short ID</name>
+		<key>short_id</key>
+		<value></value>
+		<type>string</type>
+	</param>
 	<param>
 		<name>Value</name>
 		<key>value</key>
@@ -74,6 +80,10 @@ The paramater value cannot depend on any variables.
 
 Leave the label blank to use the parameter id as the label.
 
-When type is not None, this parameter also becomes a command line option of the form --[id] [value].
+When type is not None, this parameter also becomes a command line option of the form:
+
+-[short_id] --[id] [value]
+
+The Short ID field may be left blank.
 	</doc>
 </block>
diff --git a/grc/python/Param.py b/grc/python/Param.py
index f971d0c3..15ccd323 100644
--- a/grc/python/Param.py
+++ b/grc/python/Param.py
@@ -302,6 +302,13 @@ class Param(_Param):
 		elif t in ('string', 'file_open', 'file_save'):
 			#do not check if file/directory exists, that is a runtime issue
 			e = eval_string(v)
+			str_e = str(e)
+			if t == 'string' and self.get_name() == 'Short ID' and len(str_e) > 0:
+				try: 
+					assert len(str_e) == 1
+					ord_e = ord(str_e)
+					assert ord_e >= ord('a') and ord_e <= ord('z') or ord_e >= ord('A') and ord_e <= ord('Z')
+				except AssertionError: raise Exception, 'Short ID "%s" must be a single letter'%v
 			return str(e)
 		#########################
 		# Unique ID Type
diff --git a/grc/python/flow_graph.tmpl b/grc/python/flow_graph.tmpl
index a94e45e8..bc89fb1b 100644
--- a/grc/python/flow_graph.tmpl
+++ b/grc/python/flow_graph.tmpl
@@ -189,7 +189,7 @@ if __name__ == '__main__':
 		#set $type = $param.get_param('type').get_value()
 		#if $type
 			#silent $params_eq_list.append('%s=options.%s'%($param.get_id(), $param.get_id()))
-	parser.add_option("--$param.get_id()", dest="$param.get_id()", type="$type", default=$param.get_make(),
+	parser.add_option("-$param.get_param('short_id').get_value()", "--$param.get_id()", dest="$param.get_id()", type="$type", default=$param.get_make(),
 		help="Set $($param.get_param('label').evaluate() or $param.get_id()) [default=%default]")
 		#end if
 	#end for
-- 
2.47.2