checkpoint

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

scripts/mk_util.py

@@ -9,7 +9,7 @@
 import os
 import glob
 import sets
-from dependencies import *
+import re
 from mk_exception import *
 
 BUILD_DIR='build'
@@ -27,6 +27,28 @@ SHOW_CPPS = True
 LIB_KIND = 0
 EXE_KIND = 1
 
+# Return a list containing a file names included using '#include' in
+# the given C/C++ file named fname.
+def extract_c_includes(fname):
+    result = []
+    # We look for well behaved #include directives
+    std_inc_pat     = re.compile("[ \t]*#include[ \t]*\"(.*)\"[ \t]*")
+    system_inc_pat  = re.compile("[ \t]*#include[ \t]*\<.*\>[ \t]*")
+    # We should generate and error for any occurrence of #include that does not match the previous pattern.
+    non_std_inc_pat = re.compile(".*#include.*")
+    
+    f = open(fname, 'r')
+    linenum = 1
+    for line in f:
+        m1 = std_inc_pat.match(line)
+        if m1:
+            result.append(m1.group(1))
+        elif not system_inc_pat.match(line) and non_std_inc_pat.match(line):
+            raise MKException("Invalid #include directive at '%s':%s" % (fname, line))
+        linenum = linenum + 1
+    return result
+
+
 # Given a path dir1/subdir2/subdir3 returns ../../..
 def reverse_path(p):
     l = p.split('/')