Veronica K. B. Olsen
116 lines
4.2 KiB
Python
116 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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"""novelWriter GUI Document Highlighter
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novelWriter – GUI Document Highlighter
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========================================
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Syntax highlighting for MarkDown
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File History:
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Created: 2019-04-06 [0.0.1]
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"""
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import logging
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import nw
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from PyQt5.QtCore import QRegularExpression
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from PyQt5.QtGui import QColor, QTextCharFormat, QFont, QSyntaxHighlighter
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logger = logging.getLogger(__name__)
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class GuiDocHighlighter(QSyntaxHighlighter):
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def __init__(self, theDoc):
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QSyntaxHighlighter.__init__(self, theDoc)
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logger.debug("Initialising DocHighlighter ...")
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self.mainConf = nw.CONFIG
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self.theDoc = theDoc
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self.colHead = ( 0,155,200,255)
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self.colEmph = (200,120, 0,255)
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self.colDial = (184,200, 0,255)
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self.colComm = (120,120,120,255)
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self.colKey = (200, 0, 0,255)
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self.colVal = (184,200, 0,255)
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self.hStyles = {
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"header1" : self._makeFormat(self.colHead,"bold",20),
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"header2" : self._makeFormat(self.colHead,"bold",18),
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"header3" : self._makeFormat(self.colHead,"bold",16),
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"header4" : self._makeFormat(self.colHead,"bold",14),
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"bold" : self._makeFormat(self.colEmph,"bold"),
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"italic" : self._makeFormat(self.colEmph,"italic"),
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"strike" : self._makeFormat(self.colEmph,"strike"),
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"underline" : self._makeFormat(self.colEmph,"underline"),
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"dialogue" : self._makeFormat(self.colDial),
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"hidden" : self._makeFormat(self.colComm),
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"keyword" : self._makeFormat(self.colKey),
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"value" : self._makeFormat(self.colVal),
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}
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self.hRules = [
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(r"^#{1}[^#].*[^\n]", 0, self.hStyles["header1"]),
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(r"^#{2}[^#].*[^\n]", 0, self.hStyles["header2"]),
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(r"^#{3}[^#].*[^\n]", 0, self.hStyles["header3"]),
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(r"^#{4}[^#].*[^\n]", 0, self.hStyles["header4"]),
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(r"\*{2}(.+?)\*{2}", 0, self.hStyles["bold"]),
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(r"\/{2}(.+?)\/{2}", 0, self.hStyles["italic"]),
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(r"~{2}(.+?)~{2}", 0, self.hStyles["strike"]),
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(r"_{2}(.+?)_{2}", 0, self.hStyles["underline"]),
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(r'"(.+?)"', 0, self.hStyles["dialogue"]),
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(r"«(.+?)»", 0, self.hStyles["dialogue"]),
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(r"“(.+?)”", 0, self.hStyles["dialogue"]),
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(r"^(@.+?)\s*:\s*(.+?)$", 1, self.hStyles["keyword"]),
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(r"^(@.+?)\s*:\s*(.+?)$", 2, self.hStyles["value"]),
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(r"^%.*$", 0, self.hStyles["hidden"]),
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]
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# Build a QRegExp for each pattern
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self.rules = [(QRegularExpression(a),b,c) for (a,b,c) in self.hRules]
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logger.debug("DocHighlighter initialisation complete")
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return
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def _makeFormat(self, fmtCol=None, fmtStyle=None, fmtSize=None):
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theFormat = QTextCharFormat()
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if fmtCol is not None:
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theCol = QColor()
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if isinstance(fmtCol,str):
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theCol.setNamedColor(fmtCol)
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else:
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theCol.setRgb(*fmtCol)
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theFormat.setForeground(theCol)
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if fmtStyle is not None:
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if "bold" in fmtStyle:
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theFormat.setFontWeight(QFont.Bold)
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if "italic" in fmtStyle:
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theFormat.setFontItalic(True)
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if "strike" in fmtStyle:
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theFormat.setFontStrikeOut(True)
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if "underline" in fmtStyle:
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theFormat.setFontUnderline(True)
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if isinstance(fmtSize,int):
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theFormat.setFontPointSize(fmtSize)
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return theFormat
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def highlightBlock(self, theText):
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for rX, nth, fmt in self.rules:
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rxItt = rX.globalMatch(theText, 0)
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while rxItt.hasNext():
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rxMatch = rxItt.next()
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xPos = rxMatch.capturedStart(nth)
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xLen = rxMatch.capturedLength(nth)
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# logger.verbose("Captured[%d]: '%s'" % (nth,rxMatch.captured(nth)))
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# print(rxMatch.capturedTexts())
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self.setFormat(xPos, xLen, fmt)
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self.setCurrentBlockState(0)
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# END Class DocHighlighter
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