forked from mirror/waf
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
73 lines
1.6 KiB
Python
73 lines
1.6 KiB
Python
#!/usr/bin/env python
|
|
# encoding: utf-8
|
|
# Thomas Nagy, 2006-2010 (ita)
|
|
|
|
"""
|
|
Dumb C/C++ preprocessor for finding dependencies
|
|
|
|
It will look at all include files it can find after removing the comments, so the following
|
|
will always add the dependency on both "a.h" and "b.h"::
|
|
|
|
#include "a.h"
|
|
#ifdef B
|
|
#include "b.h"
|
|
#endif
|
|
int main() {
|
|
return 0;
|
|
}
|
|
|
|
To use::
|
|
|
|
def configure(conf):
|
|
conf.load('compiler_c')
|
|
conf.load('c_dumbpreproc')
|
|
"""
|
|
|
|
import re
|
|
from waflib.Tools import c_preproc
|
|
|
|
re_inc = re.compile(
|
|
'^[ \t]*(#|%:)[ \t]*(include)[ \t]*[<"](.*)[>"]\r*$',
|
|
re.IGNORECASE | re.MULTILINE)
|
|
|
|
def lines_includes(node):
|
|
code = node.read()
|
|
if c_preproc.use_trigraphs:
|
|
for (a, b) in c_preproc.trig_def:
|
|
code = code.split(a).join(b)
|
|
code = c_preproc.re_nl.sub('', code)
|
|
code = c_preproc.re_cpp.sub(c_preproc.repl, code)
|
|
return [(m.group(2), m.group(3)) for m in re.finditer(re_inc, code)]
|
|
|
|
parser = c_preproc.c_parser
|
|
class dumb_parser(parser):
|
|
def addlines(self, node):
|
|
if node in self.nodes[:-1]:
|
|
return
|
|
self.currentnode_stack.append(node.parent)
|
|
|
|
# Avoid reading the same files again
|
|
try:
|
|
lines = self.parse_cache[node]
|
|
except KeyError:
|
|
lines = self.parse_cache[node] = lines_includes(node)
|
|
|
|
self.lines = lines + [(c_preproc.POPFILE, '')] + self.lines
|
|
|
|
def start(self, node, env):
|
|
try:
|
|
self.parse_cache = node.ctx.parse_cache
|
|
except AttributeError:
|
|
self.parse_cache = node.ctx.parse_cache = {}
|
|
|
|
self.addlines(node)
|
|
while self.lines:
|
|
(x, y) = self.lines.pop(0)
|
|
if x == c_preproc.POPFILE:
|
|
self.currentnode_stack.pop()
|
|
continue
|
|
self.tryfind(y, env=env)
|
|
|
|
c_preproc.c_parser = dumb_parser
|
|
|