Fix pre-existing header-includes

.travis.yml

@@ -4,8 +4,8 @@ python:
   - "3.4"
   - "3.5"
 before_install:
-  - wget https://github.com/jgm/pandoc/releases/download/2.1.3/pandoc-2.1.3-1-amd64.deb
-  - sudo dpkg -i pandoc-2.1.3-1-amd64.deb
+  - wget https://github.com/jgm/pandoc/releases/download/2.2.1/pandoc-2.2.1-1-amd64.deb
+  - sudo dpkg -i pandoc-2.2.1-1-amd64.deb
   - pandoc -v
 install:
   - pip install coveralls

README.md

@@ -1,13 +1,13 @@
 # pandoc-latex-color
-[![Build Status](https://img.shields.io/travis/chdemko/pandoc-latex-color/master.svg)](https://travis-ci.org/chdemko/pandoc-latex-color/branches)
-[![Coveralls](https://img.shields.io/coveralls/github/chdemko/pandoc-latex-color/master.svg)](https://coveralls.io/github/chdemko/pandoc-latex-color?branch=master)
+[![Build Status](https://img.shields.io/travis/chdemko/pandoc-latex-color/0.0.3.svg)](https://travis-ci.org/chdemko/pandoc-latex-color/branches)
+[![Coveralls](https://img.shields.io/coveralls/github/chdemko/pandoc-latex-color/0.0.3.svg)](https://coveralls.io/github/chdemko/pandoc-latex-color?branch=0.0.3)
 [![Scrutinizer](https://img.shields.io/scrutinizer/g/chdemko/pandoc-latex-color.svg)](https://scrutinizer-ci.com/g/chdemko/pandoc-latex-color/)
 [![PyPI version](https://img.shields.io/pypi/v/pandoc-latex-color.svg)](https://pypi.org/project/pandoc-latex-color/)
 [![PyPI format](https://img.shields.io/pypi/format/pandoc-latex-color.svg)](https://pypi.org/project/pandoc-latex-color/)
-[![License](https://img.shields.io/pypi/l/pandoc-latex-color.svg)](https://raw.githubusercontent.com/chdemko/pandoc-latex-color/master/LICENSE)
+[![License](https://img.shields.io/pypi/l/pandoc-latex-color/0.0.3.svg)](https://raw.githubusercontent.com/chdemko/pandoc-latex-color/0.0.3/LICENSE)
 [![Downloads](https://img.shields.io/pypi/dm/pandoc-latex-color.svg)](https://pypi.org/project/pandoc-latex-color/)
-[![Python version](https://img.shields.io/pypi/pyversions/pandoc-latex-color.svg)](https://pypi.org/project/pandoc-latex-color/)
-[![Development Status](https://img.shields.io/pypi/status/pandoc-latex-color.svg)](https://pypi.org/project/pandoc-latex-color/)
+[![Python version](https://img.shields.io/pypi/pyversions/pandoc-latex-color/0.0.3.svg)](https://pypi.org/project/pandoc-latex-color/0.0.3/)
+[![Development Status](https://img.shields.io/pypi/status/pandoc-latex-color/0.0.3.svg)](https://pypi.org/project/pandoc-latex-color/0.0.3/)
 
 *pandoc-latex-color* is a [pandoc] filter for setting the color to `Span`, and `Div` that have speficied classes or `latex-color` attribute.
 

pandoc_latex_color.py

@@ -4,7 +4,7 @@
 Pandoc filter for changing color in LaTeX
 """
 
-from panflute import run_filter, debug, Span, Div, RawInline, RawBlock, MetaInlines
+from panflute import run_filter, debug, Span, Div, RawInline, RawBlock, MetaInlines, MetaList
 
 def x11colors():
     # See https://www.w3.org/TR/css-color-3/#svg-color
@@ -229,7 +229,10 @@ def add_definition(defined, definition):
 def finalize(doc):
     # Add header-includes if necessary
     if 'header-includes' not in doc.metadata:
-        doc.metadata['header-includes'] = []
+        doc.metadata['header-includes'] = MetaList()
+    # Convert header-includes to MetaList if necessary
+    elif not isinstance(doc.metadata['header-includes'], MetaList):
+        doc.metadata['header-includes'] = MetaList(doc.metadata['header-includes'])
 
     # Add usefull LaTexPackage
     doc.metadata['header-includes'].append(MetaInlines(RawInline('\\usepackage{xcolor}', 'tex')))

setup.py

@@ -28,7 +28,7 @@
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # https://packaging.python.org/en/latest/single_source_version.html
-    version='0.0.2',
+    version='0.0.3',
 
     # The project's description
     description='A pandoc filter for changing font size in LaTeX',