From a8b06acff9fc27e6c03e6ad12dfc51240f773587 Mon Sep 17 00:00:00 2001
From: cheung <cheung@ubuntu.(none)>
Date: Sat, 23 Feb 2013 19:12:19 -0800
Subject: [PATCH 1/3] Create config file to implement feature request #27

Import selectors
Import astTransforms
---
 java2python/config/snake_case.py | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 java2python/config/snake_case.py

diff --git a/java2python/config/snake_case.py b/java2python/config/snake_case.py
new file mode 100644
index 0000000..0ba56b8
--- /dev/null
+++ b/java2python/config/snake_case.py
@@ -0,0 +1,32 @@
+from java2python.lang.selector import *
+
+astTransforms = [
+	(Type('NULL'),  transform.null2None),
+	(Type('FALSE'), transform.false2False),
+	(Type('TRUE'),  transform.true2True),
+#(Type('IDENT'), transform.keywordSafeIdent),
+	(Type('IDENT'),camel_to_snake),
+
+	(Type('FLOATING_POINT_LITERAL'), transform.syntaxSafeFloatLiteral),
+
+	(Type('TYPE') > Type('BOOLEAN'), transform.typeSub),
+	(Type('TYPE') > Type('BYTE'), transform.typeSub),
+	(Type('TYPE') > Type('CHAR'), transform.typeSub),
+	(Type('TYPE') > Type('FLOAT'), transform.typeSub),
+	(Type('TYPE') > Type('INT'), transform.typeSub),
+	(Type('TYPE') > Type('SHORT'), transform.typeSub),
+	(Type('TYPE') > Type('LONG'), transform.typeSub),
+	(Type('TYPE') > Type('DOUBLE'), transform.typeSub),
+
+	(Type('METHOD_CALL') > Type('DOT') > Type('IDENT', 'length'),
+	 transform.lengthToLen),
+
+	(Type('METHOD_CALL') > Type('DOT') > (
+										  Type('IDENT', 'String') +
+										  Type('IDENT', 'format')
+										 ),
+	 transform.formatString),
+
+	(Type('TYPE') > Type('QUALIFIED_TYPE_IDENT') > Type('IDENT'),
+	 transform.typeSub)
+]

From 5b106cf15433e42f70418c432cd27536a298462b Mon Sep 17 00:00:00 2001
From: cheung <cheung@ubuntu.(none)>
Date: Sat, 23 Feb 2013 19:18:05 -0800
Subject: [PATCH 2/3] Add method transforms to astTransform list

---
 java2python/config/snake_case.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/java2python/config/snake_case.py b/java2python/config/snake_case.py
index 0ba56b8..968b417 100644
--- a/java2python/config/snake_case.py
+++ b/java2python/config/snake_case.py
@@ -28,5 +28,8 @@
 	 transform.formatString),
 
 	(Type('TYPE') > Type('QUALIFIED_TYPE_IDENT') > Type('IDENT'),
-	 transform.typeSub)
+	 transform.typeSub),
+	
+	(Type('FUNCTIION_METHOD_DECL') > Type('IDENT'),camel_to_snake),
+	(Type('VOID_METHOD_DECL') > Type('IDENT'),camel_to_snake)
 ]

From 5298dcb2c093a86c8dc9724c5273549c09e9b9d6 Mon Sep 17 00:00:00 2001
From: cheung <cheung@ubuntu.(none)>
Date: Sat, 23 Feb 2013 19:22:28 -0800
Subject: [PATCH 3/3] Define camel_to_snake function

The function is supposed to change the identifiers format from
camelCase to snake_case
---
 java2python/config/snake_case.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/java2python/config/snake_case.py b/java2python/config/snake_case.py
index 968b417..f2e1219 100644
--- a/java2python/config/snake_case.py
+++ b/java2python/config/snake_case.py
@@ -33,3 +33,15 @@
 	(Type('FUNCTIION_METHOD_DECL') > Type('IDENT'),camel_to_snake),
 	(Type('VOID_METHOD_DECL') > Type('IDENT'),camel_to_snake)
 ]
+
+def camel_to_snake(node,config):
+	rawstring = re.findall('[a-z]+|[A-Z][a-z]*',node.token.text)
+	snake_string = ""
+	index = 0
+	for word in rawstring:
+		if index == 0:
+			snake_string += word
+			index = index + 1
+		else:
+			snake_string += "_" + word
+	node.token.text = snake_string