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-rw-r--r--subprojects/nk_pugl/pugl/waflib/extras/c_dumbpreproc.py72
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diff --git a/subprojects/nk_pugl/pugl/waflib/extras/c_dumbpreproc.py b/subprojects/nk_pugl/pugl/waflib/extras/c_dumbpreproc.py
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+#!/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)
+
+c_preproc.c_parser = dumb_parser
+