Merged revisions 4727-4729,4731-4938,4940-5028 via svnmerge from

http://scons.tigris.org/svn/scons/branches/pending

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  r4942 | stevenknight | 2010-06-03 12:41:20 -0700 (Thu, 03 Jun 2010) | 13 lines

  Isseu 2641:  Latest drop of the TestCmd infrastructure, v. 1.3, including:

  * Support for test timeouts.
  * Ability to set separate match_stdout and match_stderr functions.
  * Ability to set separate diff_stdout and diff_stderr functions.
  * Static methods for the various underlying match* and diff* functionality.
  * Ability to get at the various match* and diff* functions by attribute name.
  * Got rid of checks for difflib now that Python 2.3 is the floor
    (for this infrastructure, anyway).

  Ripple effects in two test scripts.  Added upstream unit test modules
  (QMTest/Test{Cmd,Common}Tests.py).  Added a README.txt file.
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  r4943 | stevenknight | 2010-06-03 13:00:31 -0700 (Thu, 03 Jun 2010) | 2 lines

  Grab the correct TestCmd files with the updated version number.
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  r4946 | managan | 2010-06-04 09:39:20 -0700 (Fri, 04 Jun 2010) | 4 lines

  On Windows add a '/D' to the command line so it recognizes drive letters in the
  source or target file paths
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  r4947 | managan | 2010-06-04 09:51:48 -0700 (Fri, 04 Jun 2010) | 5 lines

  The scanner was not parsing the dependencies in \includegraphics commands when there was whitespace (including carriage returns) in the command.

  While we need a better long term fix this covers this concern.
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  r4948 | managan | 2010-06-04 11:13:12 -0700 (Fri, 04 Jun 2010) | 3 lines

  Dropped an import line that is needed by the last commit of mine for Windows
  depenedant option on latex command lines
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  r4949 | managan | 2010-06-04 12:27:48 -0700 (Fri, 04 Jun 2010) | 7 lines

  Some latex packages break up commands where you normally could not by
  using a comment character at the end of the first line.
  Our current scanner broke on this and lost some dependecies.
  While we need general fix, this patch solves this problem
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  r4950 | managan | 2010-06-04 15:51:36 -0700 (Fri, 04 Jun 2010) | 5 lines

  Tweak how we handle comments within Latex source files when
  scanning and looking for dependencies. We were adding a
  space when a comment broke a line and we should not have.
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  r4984 | managan | 2010-06-07 09:37:40 -0700 (Mon, 07 Jun 2010) | 6 lines

  The multi-line_include-options test failed to check for the
  existence of latex. Added that so this test is skipped on
  systems without latex.
........

1 files changed, 25 insertions, 3 deletions

diff --git a/src/engine/SCons/Scanner/LaTeX.py b/src/engine/SCons/Scanner/LaTeX.py
index d3c5c9a..b8d48b1 100644
--- a/src/engine/SCons/Scanner/LaTeX.py
+++ b/src/engine/SCons/Scanner/LaTeX.py
@@ -168,8 +168,11 @@ class LaTeX(SCons.Scanner.Base):
         # Without the \n,  the ^ could match the beginning of a *previous*
         # line followed by one or more newline characters (i.e. blank
         # lines), interfering with a match on the next line.
-        regex = r'^[^%\n]*\\(include|includegraphics(?:\[[^\]]+\])?|lstinputlisting(?:\[[^\]]+\])?|input|bibliography|usepackage){([^}]*)}'
+        # add option for whitespace before the '[options]' or the '{filename}'
+        regex = r'^[^%\n]*\\(include|includegraphics(?:\s*\[[^\]]+\])?|lstinputlisting(?:\[[^\]]+\])?|input|bibliography|usepackage)\s*{([^}]*)}'
         self.cre = re.compile(regex, re.M)
+        self.comment_re = re.compile(r'^((?:(?:\\%)|[^%\n])*)(.*)$', re.M)
+
         self.graphics_extensions = graphics_extensions
 
         def _scan(node, env, path=(), self=self):
@@ -274,6 +277,23 @@ class LaTeX(SCons.Scanner.Base):
                 return i, include
         return i, include
 
+    def canonical_text(self, text):
+        """Standardize an input TeX-file contents.
+
+        Currently:
+          * removes comments, unwrapping comment-wrapped lines.
+        """
+        out = []
+        line_continues_a_comment = False
+        for line in text.splitlines():
+            line,comment = self.comment_re.findall(line)[0]
+            if line_continues_a_comment == True:
+                out[-1] = out[-1] + line.lstrip()
+            else:
+                out.append(line)
+            line_continues_a_comment = len(comment) > 0
+        return '\n'.join(out).rstrip()+'\n'
+
     def scan(self, node):
         # Modify the default scan function to allow for the regular
         # expression to return a comma separated list of file names
@@ -281,11 +301,13 @@ class LaTeX(SCons.Scanner.Base):
 
         # Cache the includes list in node so we only scan it once:
         # path_dict = dict(list(path))
-        noopt_cre = re.compile('\[.*$')
+        # add option for whitespace (\s) before the '['
+        noopt_cre = re.compile('\s*\[.*$')
         if node.includes != None:
             includes = node.includes
         else:
-            includes = self.cre.findall(node.get_text_contents())
+            text = self.canonical_text(node.get_text_contents())
+            includes = self.cre.findall(text)
             # 1. Split comma-separated lines, e.g.
             #      ('bibliography', 'phys,comp')
             #    should become two entries