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Basic MMD highlighting

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Olivier Keshavjee 2016-03-18 16:31:24 +01:00
parent c5feb0fb6f
commit c92daf32d1
1 changed files with 50 additions and 1 deletions
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51
manuskript/ui/editors/MMDHighlighter.py
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@ -1,16 +1,65 @@
#!/usr/bin/python
# -*- coding: utf8 -*-
import re
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QTextCharFormat, QFont, QTextCursor, QFontMetrics
from manuskript.ui.editors.basicHighlighter import basicHighlighter
class MMDHighlighter(basicHighlighter):
MARKDOWN_REGEX = {
'Bold': '(\*\*)(.+?)(\*\*)',
'Bold2': '(__)(.+?)(__)',
'Italic': '(\*)([^\*].+?[^\*])(\*)',
'Italic2': '(_)([^_].+?[^_])(_)',
'Title': '^(#+)(\s*)(.*)(#*)',
'HTML': '<.+?>',
}
def __init__(self, editor, style="Default"):
basicHighlighter.__init__(self, editor)
self.editor = editor
def highlightBlock(self, text):
basicHighlighter.highlightBlockBefore(self, text)
# FIXME
self.doHighlightBlock(text)
basicHighlighter.highlightBlockAfter(self, text)
def doHighlightBlock(self, text):
fop = QTextCharFormat()
fop.setForeground(Qt.lightGray)
fb = QTextCharFormat()
fb.setFontWeight(QFont.Bold)
fi = QTextCharFormat()
fi.setFontItalic(True)
for name, style in [
("Italic", fi),
("Italic2", fi),
("Bold", fb),
("Bold2", fb),
]:
r = re.compile(self.MARKDOWN_REGEX[name])
for m in r.finditer(text):
self.setFormat(m.start(1), len(m.group(1)), fop)
self.setFormat(m.start(2), len(m.group(2)), style)
self.setFormat(m.start(3), len(m.group(3)), fop)
fps = self._defaultCharFormat.font().pointSize()
r = re.compile(self.MARKDOWN_REGEX["Title"])
for m in r.finditer(text):
fop.setFontPointSize(fps + 12 - 2 * len(m.group(1)))
fb.setFontPointSize(fps + 12 - 2 * len(m.group(1)))
self.setFormat(m.start(1), len(m.group(1)), fop)
self.setFormat(m.start(3), len(m.group(3)), fb)
self.setFormat(m.start(4), len(m.group(4)), fop)