Convert snakecase enum names to camelcase when stringified.

tools/json_schema_compiler/cc_generator.py

Index: tools/json_schema_compiler/cc_generator.py
diff --git a/tools/json_schema_compiler/cc_generator.py b/tools/json_schema_compiler/cc_generator.py
index aefae686cd245335494a69c6c71803664a4c8ad5..2d6d73d0db7db2672a545b0e49e1aa02598168b1 100644
--- a/tools/json_schema_compiler/cc_generator.py
+++ b/tools/json_schema_compiler/cc_generator.py
@@ -5,6 +5,7 @@
 from code import Code
 from model import PropertyType
 import cpp_util
+import re
 import schema_util
 import util_cc_helper
 
@@ -890,8 +891,13 @@ class _Generator(object):
                  (maybe_namespace, classname))
     c.Sblock('switch (enum_param) {')
     for enum_value in self._type_helper.FollowRef(type_).enum_values:
+      name = enum_value.name
+      if 'camel_case_enum_to_string' in self._namespace.compiler_options:
+        name = re.sub("_\S",

[not at google - send to devlin, 2014/05/13 18:36:35]

I don't know the re library well enough to tell what this means. Generally I
like to avoid use of re because it's rather esoteric, and simple mechanical
operations like this are achievable using standard string operations.

could you add a comment? what transformation are you making? why?

[David Tseng, 2014/05/13 20:10:17]

I re-wrote this without re. Hopefully that's clearer.

+                      lambda m: m.string[m.start() + 1 : m.end()].upper(),
+                      enum_value.name)
       (c.Append('case %s: ' % self._type_helper.GetEnumValue(type_, enum_value))
-        .Append('  return "%s";' % enum_value.name))
+        .Append('  return "%s";' % name))
     (c.Append('case %s:' % self._type_helper.GetEnumNoneValue(type_))
       .Append('  return "";')
       .Eblock('}')