From 3712dc75949603484e2d2d70e1b5a6bd4ecefd34 Mon Sep 17 00:00:00 2001
From: Daniel Brooks <db48x@db48x.net>
Date: Sat, 4 Jul 2015 23:32:45 -0700
Subject: Notice preprocessor directives with whitespace after the hash-mark...

...and before the directive name
---
 deheader | 48 ++++++++++++++++++++++++++++--------------------
 1 file changed, 28 insertions(+), 20 deletions(-)

diff --git a/deheader b/deheader
index a38175e..4c0d29c 100755
--- a/deheader
+++ b/deheader
@@ -1269,26 +1269,25 @@ class InclusionMap:
             seen = []
             conditions = []
             for line in open(sourcefile):
-                if line.startswith("#ifndef"):
-                    conditions.append(line[7:].strip())
-                elif line.startswith("#ifdef"):
-                    conditions.append(line[6:].strip())
-                elif line.startswith("#if"):
-                    conditions.append(line[3:].strip())
-                elif line.startswith("#endif"):
+                c = match_preproc(["ifndef", "ifdef", "if"], line)
+                if c is not False:
+                    conditions.append(c)
+                elif match_preproc("endif", line) is not False:
                     conditions.pop()
-                elif line.startswith("#include"):
-                    if verbosity >= PROGRESS_DEBUG:
-                        name = trim(line)
-                        print "deheader: %s includes %s" % (sourcefile, name)
-                    if ignore and ignore.search(line):
+                else:
+                    f = match_preproc("include", line)
+                    if f is not False:
                         if verbosity >= PROGRESS_DEBUG:
-                            print "deheader: ignoring %s (exclusion match with %s)." % (name, ignore.pattern)
-                        continue
-                    if not conditions or conditions == ["S_SPLINT_S"]:
-                        includes.append(line)
-                    elif verbose > 1:
-                        print "deheader: ignoring %s (conditional inclusion)" % name
+                            name = trim(f)
+                            print "deheader: %s includes %s" % (sourcefile, name)
+                        if ignore and ignore.search(line):
+                            if verbosity >= PROGRESS_DEBUG:
+                                print "deheader: ignoring %s (exclusion match with %s)." % (name, ignore.pattern)
+                            continue
+                        if not conditions or conditions == ["S_SPLINT_S"]:
+                            includes.append(line)
+                        elif verbose > 1:
+                            print "deheader: ignoring %s (conditional inclusion)" % name
                 for (r, c, h) in compiled:
                     if c.search(line):
                         if not set(h).issubset(set(seen)):
@@ -1335,9 +1334,18 @@ class SaveForModification:
                 pass
             os.rename(self.original, self.filename)
 
+def match_preproc(directives, line):
+    if not isinstance(directives, list):
+        directives = [directives]
+    regexp = "|".join(["#\s*" + d for d in directives])
+    m = re.match(regexp, line)
+    if m:
+        return line[m.span()[1]:].strip()
+    return False
+
 def trim(line):
     "Get file reference from an #include, retaining <> if a system header."
-    trimmed = line[9:].strip()
+    trimmed = re.sub("^#\s*include", "", line).strip()
     if trimmed[0] in '"':
         return '"' + trimmed.split('"')[1] + '"'
     elif trimmed[0] == '<':
@@ -1423,7 +1431,7 @@ def deheader(sourcefile, maker, includes, requires, remove, verbose):
                                  includes[:], requires, verbose)
         if unneeded:
             for line in unneeded:
-                print "deheader: remove %s from %s" % (trim(line), sourcefile)
+                print "deheader: remove %s from %s" % (trim(line), sourcefile) # XXX
             if remove:
                 remove_it = SaveForModification(sourcefile)
                 remove_it.remove_headers(unneeded)
-- 
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