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[Qemu-devel] [PATCH v3 01/14] qapi: Fix C identifiers generated for name


From: Eric Blake
Subject: [Qemu-devel] [PATCH v3 01/14] qapi: Fix C identifiers generated for names containing '.'
Date: Tue, 5 May 2015 06:30:42 -0600

From: Markus Armbruster <address@hidden>

c_fun() maps '.' to '_', c_var() doesn't.  Nothing prevents '.' in
QAPI names that get passed to c_var().

Which QAPI names get passed to c_fun(), to c_var(), or to both is not
obvious.  Names of command parameters and struct type members get
passed to c_var().

c_var() strips a leading '*', but this cannot happen.  c_fun()
doesn't.

Fix c_var() to work exactly like c_fun().

Perhaps they should be replaced by a single mapping function.

Signed-off-by: Markus Armbruster <address@hidden>
[add 'import string']
Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
---
 scripts/qapi.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/qapi.py b/scripts/qapi.py
index edfaf9e..ca1adf2 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -15,6 +15,7 @@ import re
 from ordereddict import OrderedDict
 import os
 import sys
+import string

 builtin_types = {
     'str':      'QTYPE_QSTRING',
@@ -752,6 +753,8 @@ def camel_case(name):
             new_name += ch.lower()
     return new_name

+c_var_trans = string.maketrans('.-', '__')
+
 def c_var(name, protect=True):
     # ANSI X3J11/88-090, 3.1.1
     c89_words = set(['auto', 'break', 'case', 'char', 'const', 'continue',
@@ -781,10 +784,10 @@ def c_var(name, protect=True):
     polluted_words = set(['unix', 'errno'])
     if protect and (name in c89_words | c99_words | c11_words | gcc_words | 
cpp_words | polluted_words):
         return "q_" + name
-    return name.replace('-', '_').lstrip("*")
+    return name.translate(c_var_trans)

 def c_fun(name, protect=True):
-    return c_var(name, protect).replace('.', '_')
+    return c_var(name, protect)

 def c_list_type(name):
     return '%sList' % name
-- 
2.1.0




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