SF.net SVN: docutils:[9953] trunk/docutils

Revision: 9953
          http://sourceforge.net/p/docutils/code/9953
Author:   milde
Date:     2024-10-20 17:44:36 +0000 (Sun, 20 Oct 2024)
Log Message:
-----------
ODT writer: Fix handling of `*.xml` stylesheets.

According to the ODT writer documentation, the "stylesheet" setting
should work with either "styles.odt" or "styles.xml" files.

Fix errors with "*.xml" style files [bugs:#494].
Thanks to Paul Kishimoto for report and analysis.

Modified Paths:
--------------
    trunk/docutils/HISTORY.rst
    trunk/docutils/docs/user/odt.rst
    trunk/docutils/docutils/writers/odf_odt/__init__.py

Modified: trunk/docutils/HISTORY.rst
===================================================================
--- trunk/docutils/HISTORY.rst	2024-10-20 10:48:13 UTC (rev 9952)
+++ trunk/docutils/HISTORY.rst	2024-10-20 17:44:36 UTC (rev 9953)
@@ -204,6 +204,7 @@
   - Fix conversion factor of "pc" (pica) to "cm".
   - Fix conversion of image width in "%" if the height is specified.
   - Adjust fallback DPI value (currently not used) to match CSS units.
+  - Fix errors with "*.xml" style files (bug #494).
 
 * pyproject.toml
 

Modified: trunk/docutils/docs/user/odt.rst
===================================================================
--- trunk/docutils/docs/user/odt.rst	2024-10-20 10:48:13 UTC (rev 9952)
+++ trunk/docutils/docs/user/odt.rst	2024-10-20 17:44:36 UTC (rev 9953)
@@ -157,7 +157,9 @@
 
 Note that with the ``--stylesheet`` command line option, you can
 use either ``styles.odt`` or ``styles.xml``, as described below.
-Use of ``styles.odt`` is recommended over ``styles.xml``.
+Use of ``styles.odt`` is recommended over ``styles.xml`` as, e.g.,
+customizing `table styles`_ does not work with an ``*.xml``
+stylesheet file.
 
 You can modify the look of documents generated by ``odtwriter`` in
 several ways:

Modified: trunk/docutils/docutils/writers/odf_odt/__init__.py
===================================================================
--- trunk/docutils/docutils/writers/odf_odt/__init__.py	2024-10-20 10:48:13 UTC (rev 9952)
+++ trunk/docutils/docutils/writers/odf_odt/__init__.py	2024-10-20 17:44:36 UTC (rev 9953)
@@ -673,8 +673,10 @@
         """Copy images, settings, etc from the stylesheet doc into target doc.
         """
         stylespath = self.settings.stylesheet
+        if not stylespath.endswith('.odt'):
+            return  # an '.xml' stylesheet does not have settings or images
         inzipfile = zipfile.ZipFile(stylespath, 'r')
-        # Copy the styles.
+        # Copy the settings.
         s1 = inzipfile.read('settings.xml')
         self.write_zip_str(outzipfile, 'settings.xml', s1)
         # Copy the images.
@@ -923,14 +925,15 @@
         return self.str_stylesheet
 
     def retrieve_styles(self, extension):
-        """Retrieve the stylesheet from either a .xml file or from
-        a .odt (zip) file.  Return the content as a string.
+        """Retrieve the stylesheet from a .xml or .odt (zip) file.
+
+        Store in `self.*_styles*` attributes.
         """
-        s2 = None
         stylespath = self.settings.stylesheet
         ext = os.path.splitext(stylespath)[1]
         if ext == '.xml':
             s1 = Path(stylespath).read_text(encoding='utf-8')
+            s2 = ''
         elif ext == extension:
             zfile = zipfile.ZipFile(stylespath, 'r')
             s1 = zfile.read('styles.xml')
@@ -942,6 +945,9 @@
         self.str_stylesheet = s1
         self.str_stylesheetcontent = s2
         self.dom_stylesheet = etree.fromstring(self.str_stylesheet)
+        if not s2:
+            return
+        # TODO: dom_stylesheetcontent is never used. Remove?
         self.dom_stylesheetcontent = etree.fromstring(
             self.str_stylesheetcontent)
         self.table_styles = self.extract_table_styles(s2)

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