Veronica K. B. Olsen
267 lines
8.9 KiB
Python
267 lines
8.9 KiB
Python
# -*- coding: utf-8 -*-
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"""novelWriter HTML Text Converter
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novelWriter – HTML Text Converter
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===================================
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Extends the Tokenizer class to write HTML
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File History:
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Created: 2019-05-07 [0.0.1]
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This file is a part of novelWriter
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Copyright 2020, Veronica Berglyd Olsen
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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"""
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import logging
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import re
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import nw
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from nw.core.tokenizer import Tokenizer
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from nw.constants import nwUnicode, nwLabels, nwKeyWords
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logger = logging.getLogger(__name__)
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class ToHtml(Tokenizer):
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M_PREVIEW = 0 # Tweak output for the DocViewer
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M_EXPORT = 1 # Tweak output for saving to HTML or printing
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M_EBOOK = 2 # Tweak output for converting to epub
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def __init__(self, theProject, theParent):
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Tokenizer.__init__(self, theProject, theParent)
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self.genMode = self.M_EXPORT
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self.repDict = {
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"<" : "<",
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">" : ">",
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"&" : "&",
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"\t" : " ",
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nwUnicode.U_ENDASH : nwUnicode.H_ENDASH,
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nwUnicode.U_EMDASH : nwUnicode.H_EMDASH,
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nwUnicode.U_HELLIP : nwUnicode.H_HELLIP,
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nwUnicode.U_NBSP : nwUnicode.H_NBSP,
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}
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return
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##
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# Setters
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##
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def setPreview(self, forPreview, doComments):
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"""If we're using this class to generate markdown preview, we
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need to make a few changes to formatting, which is managed by
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these flags.
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"""
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if forPreview:
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self.genMode = self.M_PREVIEW
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self.doKeywords = True
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self.doComments = doComments
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self.repDict["\t"] = " "*8
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return
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##
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# Class Methods
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##
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def doAutoReplace(self):
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"""Extend the auto-replace to also properly encode some unicode
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characters into their respective HTML entities.
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"""
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Tokenizer.doAutoReplace(self)
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xRep = re.compile("|".join([re.escape(k) for k in self.repDict.keys()]), flags=re.DOTALL)
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self.theText = xRep.sub(lambda x: self.repDict[x.group(0)], self.theText)
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return
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def doPostProcessing(self):
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"""Reverse the html entities replacement on the markdown text.
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Otherwise, all the &something; bits will also be in there.
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"""
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if self.genMode == self.M_PREVIEW:
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# Doesn't matter for preview as we don't use the markdown
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return
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revDict = dict(map(reversed, self.repDict.items()))
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xRep = re.compile("|".join([re.escape(k) for k in revDict.keys()]), flags=re.DOTALL)
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self.theMarkdown = xRep.sub(lambda x: revDict[x.group(0)], self.theMarkdown)
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return
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def doConvert(self):
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"""Convert the list of text tokens into a HTML document saved
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to theResult.
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"""
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htmlTags = {
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self.FMT_B_B : "<strong>",
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self.FMT_B_E : "</strong>",
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self.FMT_I_B : "<em>",
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self.FMT_I_E : "</em>",
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self.FMT_U_B : "<u>",
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self.FMT_U_E : "</u>",
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}
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self.theResult = ""
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thisPar = []
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parStyle = ""
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tmpResult = []
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for tType, tText, tFormat, tStyle in self.theTokens:
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# Styles
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aStyle = []
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if tStyle is not None:
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if tStyle & self.A_LEFT:
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aStyle.append("text-align: left;")
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if tStyle & self.A_RIGHT:
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aStyle.append("text-align: right;")
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if tStyle & self.A_CENTRE:
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aStyle.append("text-align: center;")
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if tStyle & self.A_JUSTIFY:
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aStyle.append("text-align: justify;")
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if tStyle & self.A_PBB:
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aStyle.append("page-break-before: always;")
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if tStyle & self.A_PBB_L:
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aStyle.append("page-break-before: left;")
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if tStyle & self.A_PBB_R:
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aStyle.append("page-break-before: right;")
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if tStyle & self.A_PBB_AV:
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aStyle.append("page-break-before: avoid;")
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if tStyle & self.A_PBA:
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aStyle.append("page-break-after: always;")
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if tStyle & self.A_PBA_L:
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aStyle.append("page-break-after: left;")
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if tStyle & self.A_PBA_R:
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aStyle.append("page-break-after: right;")
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if tStyle & self.A_PBA_AV:
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aStyle.append("page-break-after: avoid;")
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if len(aStyle) > 0:
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hStyle = " style='%s'" % (" ".join(aStyle))
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else:
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hStyle = ""
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# Process TextType
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if tType == self.T_EMPTY:
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if len(thisPar) > 0:
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tTemp = "".join(thisPar)
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tmpResult.append("<p%s>%s</p>\n" % (parStyle, tTemp.rstrip()))
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thisPar = []
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parStyle = ""
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elif tType == self.T_HEAD1:
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tHead = tText.replace(r"\\", "<br/>")
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tmpResult.append("<h1%s>%s</h1>\n" % (hStyle, tHead))
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elif tType == self.T_HEAD2:
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tHead = tText.replace(r"\\", "<br/>")
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tmpResult.append("<h2%s>%s</h2>\n" % (hStyle, tHead))
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elif tType == self.T_HEAD3:
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tHead = tText.replace(r"\\", "<br/>")
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tmpResult.append("<h3%s>%s</h3>\n" % (hStyle, tHead))
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elif tType == self.T_HEAD4:
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tHead = tText.replace(r"\\", "<br/>")
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tmpResult.append("<h4%s>%s</h4>\n" % (hStyle, tHead))
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elif tType == self.T_SEP:
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tmpResult.append("<p%s>%s</p>\n" % (hStyle, tText))
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elif tType == self.T_SKIP:
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tmpResult.append("<p%s> </p>\n" % hStyle)
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elif tType == self.T_TEXT:
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tTemp = tText
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parStyle = hStyle
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for xPos, xLen, xFmt in reversed(tFormat):
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tTemp = tTemp[:xPos]+htmlTags[xFmt]+tTemp[xPos+xLen:]
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if tText.endswith(" "):
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thisPar.append(tTemp.rstrip()+"<br/>")
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else:
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thisPar.append(tTemp.rstrip()+" ")
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elif tType == self.T_SYNOPSIS and self.doSynopsis:
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tmpResult.append(self._formatSynopsis(tText))
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elif tType == self.T_COMMENT and self.doComments:
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tmpResult.append(self._formatComments(tText))
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elif tType == self.T_KEYWORD and self.doKeywords:
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tmpResult.append(self._formatKeywords(tText))
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self.theResult = "".join(tmpResult)
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tmpResult = []
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return
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##
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# Internal Functions
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##
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def _formatSynopsis(self, tText):
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"""Apply HTML formatting to synopsis.
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"""
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if self.genMode == self.M_EXPORT:
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return "<p class='synopsis'><strong>Synopsis: </strong>%s</p>\n" % tText
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else:
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return "<p class='comment'>%s</p>\n" % tText
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def _formatComments(self, tText):
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"""Apply HTML formatting to comments.
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"""
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if self.genMode == self.M_EXPORT:
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return "<p class='comment'><strong>Comment: </strong>%s</p>\n" % tText
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else:
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return "<p class='comment'>%s</p>\n" % tText
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def _formatKeywords(self, tText):
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"""Apply HTML formatting to keywords.
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"""
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tText = "@"+tText
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isValid, theBits, thePos = self.theParent.theIndex.scanThis(tText)
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if not isValid or not theBits:
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return ""
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retText = ""
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refTags = []
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if theBits[0] in nwLabels.KEY_NAME:
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retText += "<span class='tags'>%s:</span> " % nwLabels.KEY_NAME[theBits[0]]
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if self.genMode == self.M_PREVIEW:
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for tTag in theBits[1:]:
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refTags.append("<a href='#%s=%s'>%s</a>" % (
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theBits[0][1:], tTag, tTag
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))
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retText += ", ".join(refTags)
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else:
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if theBits[0] == nwKeyWords.TAG_KEY:
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retText += "<a name='tag_%s'/>%s" % (
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theBits[1], theBits[1]
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)
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else:
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for tTag in theBits[1:]:
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refTags.append("<a href='#tag_%s'>%s</a>" % (
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tTag, tTag
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))
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retText += ", ".join(refTags)
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return "<div>%s</div>" % retText
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# END Class ToHtml
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