mirror of
https://github.com/neovim/neovim.git
synced 2024-12-26 14:11:15 -07:00
390 lines
13 KiB
Python
390 lines
13 KiB
Python
# Converts Vim/Nvim documentation to HTML.
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#
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# USAGE:
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# 1. python3 scripts/gen_help_html.py runtime/doc/ ~/neovim.github.io/t/
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# 3. cd ~/neovim.github.io/ && jekyll serve --host 0.0.0.0
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# 2. Visit http://localhost:4000/t/help.txt.html
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#
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# Adapted from https://github.com/c4rlo/vimhelp/
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# License: MIT
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#
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# Copyright (c) 2016 Carlo Teubner
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import os
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import re
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import urllib.parse
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import datetime
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import sys
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from itertools import chain
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HEAD = """\
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-type" content="text/html; charset={encoding}"/>
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<style>
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.h {{
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font-weight: bold;
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}}
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h1 {{
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font-family: sans-serif;
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}}
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pre {{
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font-family: sans-serif;
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}}
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</style>
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<title>Nvim: {filename}</title>
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"""
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HEAD_END = '</head>\n<body>\n'
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INTRO = """
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<h1>Nvim help files</h1>
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<p>
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<a href="https://neovim.io/">Nvim</a> help pages{vers-note}.
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Updated <a href="https://github.com/neovim/bot-ci" class="d">automatically</a>
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from the <a href="https://github.com/neovim/neovim" class="d">Nvim source</a>.
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</p>
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"""
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VERSION_NOTE = ", current as of Nvim {version}"
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SITENAVI_LINKS = """
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<a href="quickref.txt.html">Quick reference</a> ·
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<a href="usr_toc.txt.html">User manual</a> ·
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<a href="{helptxt}#reference_toc">Reference manual</a> ·
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"""
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SITENAVI_LINKS_PLAIN = SITENAVI_LINKS.format(helptxt='help.txt.html')
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SITENAVI_LINKS_WEB = SITENAVI_LINKS.format(helptxt='/')
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SITENAVI_PLAIN = '<p>' + SITENAVI_LINKS_PLAIN + '</p>'
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SITENAVI_WEB = '<p>' + SITENAVI_LINKS_WEB + '</p>'
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SITENAVI_SEARCH = '<table width="100%"><tbody><tr><td>' + SITENAVI_LINKS_WEB + \
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'</td><td style="text-align: right; max-width: 25vw"><div class="gcse-searchbox">' \
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'</div></td></tr></tbody></table><div class="gcse-searchresults"></div>'
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TEXTSTART = """
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<div id="d1">
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<pre id="sp">""" + (" " * 80) + """</pre>
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<div id="d2">
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<pre>
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"""
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FOOTER = '</pre>'
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FOOTER2 = """
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<p id="footer">Generated {generated_date} from <code>{commit}</code></p>
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</div>
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</div>
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</body>
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</html>
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""".format(
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generated_date='{0:%Y-%m-%d %H:%M:%S}'.format(datetime.datetime.now()),
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commit='?')
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RE_TAGLINE = re.compile(r'(\S+)\s+(\S+)')
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PAT_WORDCHAR = '[!#-)+-{}~\xC0-\xFF]'
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PAT_HEADER = r'(^.*~$)'
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PAT_GRAPHIC = r'(^.* `$)'
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PAT_PIPEWORD = r'(?<!\\)\|([#-)!+-~]+)\|'
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PAT_STARWORD = r'\*([#-)!+-~]+)\*(?:(?=\s)|$)'
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PAT_COMMAND = r'`([^` ]+)`'
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PAT_OPTWORD = r"('(?:[a-z]{2,}|t_..)')"
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PAT_CTRL = r'(CTRL-(?:W_)?(?:\{char\}|<[A-Za-z]+?>|.)?)'
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PAT_SPECIAL = r'(<.+?>|\{.+?}|' \
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r'\[(?:range|line|count|offset|\+?cmd|[-+]?num|\+\+opt|' \
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r'arg|arguments|ident|addr|group)]|' \
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r'(?<=\s)\[[-a-z^A-Z0-9_]{2,}])'
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PAT_TITLE = r'(Vim version [0-9.a-z]+|VIM REFERENCE.*)'
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PAT_NOTE = r'((?<!' + PAT_WORDCHAR + r')(?:note|NOTE|Notes?):?' \
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r'(?!' + PAT_WORDCHAR + r'))'
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PAT_URL = r'((?:https?|ftp)://[^\'"<> \t]+[a-zA-Z0-9/])'
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PAT_WORD = r'((?<!' + PAT_WORDCHAR + r')' + PAT_WORDCHAR + r'+' \
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r'(?!' + PAT_WORDCHAR + r'))'
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RE_LINKWORD = re.compile(
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PAT_OPTWORD + '|' +
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PAT_CTRL + '|' +
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PAT_SPECIAL)
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RE_TAGWORD = re.compile(
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PAT_HEADER + '|' +
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PAT_GRAPHIC + '|' +
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PAT_PIPEWORD + '|' +
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PAT_STARWORD + '|' +
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PAT_COMMAND + '|' +
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PAT_OPTWORD + '|' +
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PAT_CTRL + '|' +
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PAT_SPECIAL + '|' +
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PAT_TITLE + '|' +
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PAT_NOTE + '|' +
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PAT_URL + '|' +
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PAT_WORD)
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RE_NEWLINE = re.compile(r'[\r\n]')
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# H1 header "=====…"
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# H2 header "-----…"
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RE_HRULE = re.compile(r'[-=]{3,}.*[-=]{3,3}$')
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RE_EG_START = re.compile(r'(?:.* )?>$')
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RE_EG_END = re.compile(r'\S')
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RE_SECTION = re.compile(r'[-A-Z .][-A-Z0-9 .()]*(?=\s+\*)')
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RE_STARTAG = re.compile(r'\s\*([^ \t|]+)\*(?:\s|$)')
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RE_LOCAL_ADD = re.compile(r'LOCAL ADDITIONS:\s+\*local-additions\*$')
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class Link(object):
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__slots__ = 'link_plain_same', 'link_pipe_same', \
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'link_plain_foreign', 'link_pipe_foreign', \
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'filename'
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def __init__(self, link_plain_same, link_plain_foreign,
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link_pipe_same, link_pipe_foreign, filename):
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self.link_plain_same = link_plain_same
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self.link_plain_foreign = link_plain_foreign
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self.link_pipe_same = link_pipe_same
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self.link_pipe_foreign = link_pipe_foreign
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self.filename = filename
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class VimH2H(object):
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def __init__(self, tags, version=None, is_web_version=True):
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self._urls = {}
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self._version = version
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self._is_web_version = is_web_version
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for line in RE_NEWLINE.split(tags):
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m = RE_TAGLINE.match(line)
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if m:
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tag, filename = m.group(1, 2)
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self.do_add_tag(filename, tag)
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def add_tags(self, filename, contents):
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for match in RE_STARTAG.finditer(contents):
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tag = match.group(1).replace('\\', '\\\\').replace('/', '\\/')
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self.do_add_tag(str(filename), tag)
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def do_add_tag(self, filename, tag):
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tag_quoted = urllib.parse.quote_plus(tag)
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def mkpart1(doc):
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return '<a href="' + doc + '#' + tag_quoted + '" class="'
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part1_same = mkpart1('')
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if self._is_web_version and filename == 'help.txt':
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doc = '/'
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else:
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doc = filename + '.html'
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part1_foreign = mkpart1(doc)
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part2 = '">' + html_escape[tag] + '</a>'
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def mklinks(cssclass):
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return (part1_same + cssclass + part2,
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part1_foreign + cssclass + part2)
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cssclass_plain = 'd'
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m = RE_LINKWORD.match(tag)
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if m:
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opt, ctrl, special = m.groups()
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if opt is not None:
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cssclass_plain = 'o'
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elif ctrl is not None:
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cssclass_plain = 'k'
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elif special is not None:
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cssclass_plain = 's'
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links_plain = mklinks(cssclass_plain)
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links_pipe = mklinks('l')
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self._urls[tag] = Link(
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links_plain[0], links_plain[1],
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links_pipe[0], links_pipe[1],
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filename)
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def maplink(self, tag, curr_filename, css_class=None):
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links = self._urls.get(tag)
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if links is not None:
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if links.filename == curr_filename:
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if css_class == 'l':
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return links.link_pipe_same
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else:
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return links.link_plain_same
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else:
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if css_class == 'l':
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return links.link_pipe_foreign
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else:
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return links.link_plain_foreign
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elif css_class is not None:
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return '<span class="' + css_class + '">' + html_escape[tag] + \
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'</span>'
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else:
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return html_escape[tag]
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def to_html(self, filename, contents, encoding):
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out = []
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inexample = 0
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filename = str(filename)
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is_help_txt = (filename == 'help.txt')
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last = ''
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for line in RE_NEWLINE.split(contents):
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line = line.rstrip('\r\n')
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line_tabs = line
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line = line.expandtabs()
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if last == 'h1':
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out.extend(('</pre>')) # XXX
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out.extend(('<h1>', line.rstrip(), '</h1>\n'))
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out.extend(('<pre>'))
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last = ''
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continue
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if RE_HRULE.match(line):
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# out.extend(('<span class="h">', line, '</span>\n'))
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last = 'h1'
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continue
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if inexample == 2:
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if RE_EG_END.match(line):
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inexample = 0
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if line[0] == '<':
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line = line[1:]
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else:
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out.extend(('<span class="e">', html_escape[line],
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'</span>\n'))
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continue
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if RE_EG_START.match(line_tabs):
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inexample = 1
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line = line[0:-1]
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if RE_SECTION.match(line_tabs):
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m = RE_SECTION.match(line)
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out.extend((r'<span class="c">', m.group(0), r'</span>'))
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line = line[m.end():]
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lastpos = 0
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for match in RE_TAGWORD.finditer(line):
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pos = match.start()
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if pos > lastpos:
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out.append(html_escape[line[lastpos:pos]])
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lastpos = match.end()
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header, graphic, pipeword, starword, command, opt, ctrl, \
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special, title, note, url, word = match.groups()
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if pipeword is not None:
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out.append(self.maplink(pipeword, filename, 'l'))
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elif starword is not None:
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out.extend(('<a name="', urllib.parse.quote_plus(starword),
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'" class="t">', html_escape[starword], '</a>'))
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elif command is not None:
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out.extend(('<span class="e">', html_escape[command],
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'</span>'))
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elif opt is not None:
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out.append(self.maplink(opt, filename, 'o'))
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elif ctrl is not None:
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out.append(self.maplink(ctrl, filename, 'k'))
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elif special is not None:
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out.append(self.maplink(special, filename, 's'))
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elif title is not None:
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out.extend(('<span class="i">', html_escape[title],
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'</span>'))
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elif note is not None:
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out.extend(('<span class="n">', html_escape[note],
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'</span>'))
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elif header is not None:
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out.extend(('<span class="h">', html_escape[header[:-1]],
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'</span>'))
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elif graphic is not None:
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out.append(html_escape[graphic[:-2]])
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elif url is not None:
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out.extend(('<a class="u" href="', url, '">' +
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html_escape[url], '</a>'))
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elif word is not None:
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out.append(self.maplink(word, filename))
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if lastpos < len(line):
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out.append(html_escape[line[lastpos:]])
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out.append('\n')
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if inexample == 1:
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inexample = 2
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header = []
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header.append(HEAD.format(encoding=encoding, filename=filename))
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header.append(HEAD_END)
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if self._is_web_version and is_help_txt:
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vers_note = VERSION_NOTE.replace('{version}', self._version) \
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if self._version else ''
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header.append(INTRO.replace('{vers-note}', vers_note))
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if self._is_web_version:
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header.append(SITENAVI_SEARCH)
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sitenavi_footer = SITENAVI_WEB
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else:
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header.append(SITENAVI_PLAIN)
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sitenavi_footer = SITENAVI_PLAIN
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header.append(TEXTSTART)
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return ''.join(chain(header, out, (FOOTER, sitenavi_footer, FOOTER2)))
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class HtmlEscCache(dict):
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def __missing__(self, key):
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r = key.replace('&', '&') \
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.replace('<', '<') \
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.replace('>', '>')
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self[key] = r
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return r
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html_escape = HtmlEscCache()
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def slurp(filename):
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try:
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with open(filename, encoding='UTF-8') as f:
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return f.read(), 'UTF-8'
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except UnicodeError:
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# 'ISO-8859-1' ?
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with open(filename, encoding='latin-1') as f:
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return f.read(), 'latin-1'
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def usage():
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return "usage: " + sys.argv[0] + " IN_DIR OUT_DIR [BASENAMES...]"
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def main():
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if len(sys.argv) < 3:
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sys.exit(usage())
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in_dir = sys.argv[1]
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out_dir = sys.argv[2]
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basenames = sys.argv[3:]
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print("Processing tags...")
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h2h = VimH2H(slurp(os.path.join(in_dir, 'tags'))[0], is_web_version=False)
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if len(basenames) == 0:
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basenames = os.listdir(in_dir)
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for basename in basenames:
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if os.path.splitext(basename)[1] != '.txt' and basename != 'tags':
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print("Ignoring " + basename)
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continue
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print("Processing " + basename + "...")
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path = os.path.join(in_dir, basename)
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text, encoding = slurp(path)
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outpath = os.path.join(out_dir, basename + '.html')
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of = open(outpath, 'w')
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of.write(h2h.to_html(basename, text, encoding))
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of.close()
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main()
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