50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
from lektor.pluginsystem import Plugin
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from lektor.context import get_ctx
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from pygments import highlight
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from pygments.formatters import HtmlFormatter
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from pygments.lexers import get_lexer_by_name
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from markupsafe import Markup
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class MarkdownHighlighterPlugin(Plugin):
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name = 'Markdown Highlighter'
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description = 'Adds syntax highlighting for markdown blocks.'
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def get_formatter(self):
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return HtmlFormatter(style=self.get_style())
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def get_style(self):
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return self.get_config().get('pygments.style', 'default')
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def highlight_code(self, text, lang):
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get_ctx().record_dependency(self.config_filename)
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lexer = get_lexer_by_name(lang)
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return highlight(text, lexer, self.get_formatter())
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def on_markdown_config(self, config, **extra):
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class HighlightMixin(object):
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def block_code(ren, text, lang):
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if not lang:
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return super(HighlightMixin, ren).block_code(text, lang)
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return self.highlight_code(text, lang)
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config.renderer_mixins.append(HighlightMixin)
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def on_setup_env(self, **extra):
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def get_pygments_stylesheet(artifact_name='/static/pygments.css'):
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ctx = get_ctx()
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@ctx.sub_artifact(artifact_name=artifact_name, sources=[
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self.config_filename])
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def build_stylesheet(artifact):
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with artifact.open('w') as f:
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f.write(self.get_formatter().get_style_defs())
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return artifact_name
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def pygmentize(text, lang):
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return Markup(self.highlight_code(text, lang))
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self.env.jinja_env.globals['get_pygments_stylesheet'] = \
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get_pygments_stylesheet
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self.env.jinja_env.filters['pygmentize'] = pygmentize
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