Veronica K. B. Olsen
191 lines
6.3 KiB
Python
191 lines
6.3 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.hRules = []
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self.colHead = ( 0,155,200,255)
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self.colHeadH = ( 0,105,135,255)
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self.colEmph = (200,120, 0,255)
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self.colDialN = (200, 46, 0,255)
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self.colDialD = (184,200, 0,255)
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self.colDialS = (136,200, 0,255)
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self.colComm = (150,150,150,255)
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self.colKey = (200, 46, 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",1.8),
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"header2" : self._makeFormat(self.colHead, "bold",1.6),
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"header3" : self._makeFormat(self.colHead, "bold",1.4),
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"header4" : self._makeFormat(self.colHead, "bold",1.2),
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"header1h" : self._makeFormat(self.colHeadH,"bold",1.8),
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"header2h" : self._makeFormat(self.colHeadH,"bold",1.6),
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"header3h" : self._makeFormat(self.colHeadH,"bold",1.4),
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"header4h" : self._makeFormat(self.colHeadH,"bold",1.2),
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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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"dialogue1" : self._makeFormat(self.colDialN),
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"dialogue2" : self._makeFormat(self.colDialD),
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"dialogue3" : self._makeFormat(self.colDialS),
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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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# Headers
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self.hRules.append((
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r"^(#{1})[^#](.*)[^\n]", {
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0 : self.hStyles["header1"],
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1 : self.hStyles["header1h"],
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}
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))
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self.hRules.append((
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r"^(#{2})[^#](.*)[^\n]", {
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0 : self.hStyles["header2"],
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1 : self.hStyles["header2h"],
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}
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))
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self.hRules.append((
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r"^(#{3})[^#](.*)[^\n]", {
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0 : self.hStyles["header3"],
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1 : self.hStyles["header3h"],
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}
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))
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self.hRules.append((
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r"^(#{4})[^#](.*)[^\n]", {
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0 : self.hStyles["header4"],
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1 : self.hStyles["header4h"],
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}
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))
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# Keyword/Value
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self.hRules.append((
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r"^(@.+?)\s*:\s*(.+?)$", {
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1 : self.hStyles["keyword"],
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2 : self.hStyles["value"],
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}
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))
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# Comments
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self.hRules.append((
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r"^%.*$", {
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0 : self.hStyles["hidden"],
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}
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))
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# Markdown
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self.hRules.append((
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r"(?<![\w|\\])([\*]{2})(?!\s)(?m:(.+?))(?<![\s|\\])(\1)(?!\w)", {
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1 : self.hStyles["hidden"],
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2 : self.hStyles["bold"],
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3 : self.hStyles["hidden"],
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}
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))
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self.hRules.append((
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r"(?<![\w|_|\\])([_])(?!\s|\1)(?m:(.+?))(?<![\s|\\])(\1)(?!\w)", {
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1 : self.hStyles["hidden"],
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2 : self.hStyles["italic"],
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3 : self.hStyles["hidden"],
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}
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))
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self.hRules.append((
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r"(?<![\w|\\])([_]{2})(?!\s)(?m:(.+?))(?<![\s|\\])(\1)(?!\w)", {
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1 : self.hStyles["hidden"],
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2 : self.hStyles["underline"],
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3 : self.hStyles["hidden"],
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}
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))
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# Quoted Strings
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self.hRules.append((
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"{:s}(.+?){:s}".format('"','"'), {
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0 : self.hStyles["dialogue1"],
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}
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))
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self.hRules.append((
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"{:s}(.+?){:s}".format(*self.mainConf.fmtDoubleQuotes), {
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0 : self.hStyles["dialogue2"],
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}
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))
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self.hRules.append((
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"{:s}(.+?){:s}".format(*self.mainConf.fmtSingleQuotes), {
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0 : self.hStyles["dialogue3"],
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}
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))
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# Build a QRegExp for each pattern
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self.rules = [(QRegularExpression(a),b) for (a,b) 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 fmtSize is not None:
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theFormat.setFontPointSize(round(fmtSize*self.mainConf.textSize))
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return theFormat
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def highlightBlock(self, theText):
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for rX, xFmt 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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for xM in xFmt.keys():
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xPos = rxMatch.capturedStart(xM)
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xLen = rxMatch.capturedLength(xM)
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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, xFmt[xM])
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self.setCurrentBlockState(0)
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# END Class DocHighlighter
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