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Adds possibility to configure lexer via YAML config file. #18

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Adds possibility to configure lexer via YAML config file. #18

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16 changes: 16 additions & 0 deletions rstblog/modules/pygments.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,16 +29,26 @@ class CodeBlock(Directive):
required_arguments = 1
optional_arguments = 0
final_argument_whitespace = False
lexers_config = {}

def run(self):
try:
lexer = get_lexer_by_name(self.arguments[0])
self.configure_lexer(lexer)
except ValueError:
lexer = TextLexer()
code = u'\n'.join(self.content)
formatted = highlight(code, lexer, html_formatter)
return [nodes.raw('', formatted, format='html')]

def configure_lexer(self, lexer):
if lexer.name not in self.lexers_config:
return

config = self.lexers_config[lexer.name]
for kv in config:
property = kv.keys()[0]
setattr(lexer, property, kv[property])

def inject_stylesheet(context, **kwargs):
context.add_stylesheet('_pygments.css')
Expand All @@ -51,6 +61,12 @@ def write_stylesheet(builder, **kwargs):

def setup(builder):
global html_formatter

lexers_config = builder.config.root_get('modules.pygments.lexers', {})
for config in lexers_config:
language = config.keys()[0];
CodeBlock.lexers_config[language] = config[language]

style = get_style_by_name(builder.config.root_get('modules.pygments.style'))
html_formatter = HtmlFormatter(style=style)
directives.register_directive('code-block', CodeBlock)
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