Dart Syntax Highlighting Not Working in Git-Scribe

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Don't think that I haven't noticed that Dart for Hipsters lacks syntax highlighting for my Dart code. Like last night's bug, this was one of those things for which I just could not spare 30 minutes of investigation. Well now I can.

This is different than my issues with PDF highlighting, which I will try another day. Rather this is for the syntax highlighting in the EPUB and mobi versions.

By default, git-scribe (my ebook toolchain of choice) uses source-hightlight to do this. The problem is that source-highlight has no idea about Dart. Pygments, on the other hand were made Dart aware a while back. Perhaps that has even made it into mainstream pygments.

When I run git-scribe gen epub I am getting many unknown Dart errors from source-highlight:

....
asciidoc: WARNING: testing.asc: line 133: filter non-zero exit code: source-highlight -f xhtml -s dart: returned 1
asciidoc: WARNING: testing.asc: line 133: no output from filter: source-highlight -f xhtml -s dart
source-highlight: missing feature: language inference requires input file
source-highlight: could not find a language definition for dart
asciidoc: WARNING: testing.asc: line 159: filter non-zero exit code: source-highlight -f xhtml -s dart: returned 1
asciidoc: WARNING: testing.asc: line 159: no output from filter: source-highlight -f xhtml -s dart
source-highlight: missing feature: language inference requires input file
source-highlight: could not find a language definition for dart
....

To switch to pygments, I ought to be able to edit ~/.asciidoc/asciidoc.conf to contain:

pygments=

But this has no effect. So, instead, I add that line (or rather uncomment it) in the /etc/asciidoc/asciidoc.conf system configuration file.

Only that still seems Dart-unaware. To install a more recent version of pygments, I first install python-setuptools:

sudo apt-get install python-setuptools python-dev build-essential

This should give me easy_install for the latest and greatest pygments:

➜  ~  sudo easy_install Pygments                                       
Searching for Pygments
Best match: Pygments 1.4
Adding Pygments 1.4 to easy-install.pth file
Installing pygmentize script to /usr/local/bin

Using /usr/lib/python2.7/dist-packages
Processing dependencies for Pygments
Finished processing dependencies for Pygments

Only that still does not have Dart:

➜  ~  /usr/local/bin/pygmentize -L | grep -i perl
* antlr-perl:
    ANTLR With Perl Target (filenames *.G, *.g)
* perl, pl:
    Perl (filenames *.pl, *.pm)
* perldoc:
    Style similar to the style used in the perldoc code blocks.
➜  ~  /usr/local/bin/pygmentize -L | grep -i dart

Bah! It looks as though I will need to install pygments from source code management. That is a task better suited for tomorrow.

Day #343