Varia's website
https://varia.zone
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
881 lines
32 KiB
881 lines
32 KiB
1 week ago
|
# -*- coding: utf-8 -*-
|
||
|
|
"""
|
||
|
|
pygments.formatters.html
|
||
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
|
|
||
|
|
Formatter for HTML output.
|
||
|
|
|
||
|
|
:copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
|
||
|
|
:license: BSD, see LICENSE for details.
|
||
|
|
"""
|
||
|
|
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import os.path
|
||
|
|
from io import StringIO
|
||
|
|
|
||
|
|
from pygments.formatter import Formatter
|
||
|
|
from pygments.token import Token, Text, STANDARD_TYPES
|
||
|
|
from pygments.util import get_bool_opt, get_int_opt, get_list_opt
|
||
|
|
|
||
|
|
try:
|
||
|
|
import ctags
|
||
|
|
except ImportError:
|
||
|
|
ctags = None
|
||
|
|
|
||
|
|
__all__ = ['HtmlFormatter']
|
||
|
|
|
||
|
|
|
||
|
|
_escape_html_table = {
|
||
|
|
ord('&'): u'&',
|
||
|
|
ord('<'): u'<',
|
||
|
|
ord('>'): u'>',
|
||
|
|
ord('"'): u'"',
|
||
|
|
ord("'"): u''',
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
def escape_html(text, table=_escape_html_table):
|
||
|
|
"""Escape &, <, > as well as single and double quotes for HTML."""
|
||
|
|
return text.translate(table)
|
||
|
|
|
||
|
|
|
||
|
|
def webify(color):
|
||
|
|
if color.startswith('calc') or color.startswith('var'):
|
||
|
|
return color
|
||
|
|
else:
|
||
|
|
return '#' + color
|
||
|
|
|
||
|
|
|
||
|
|
def _get_ttype_class(ttype):
|
||
|
|
fname = STANDARD_TYPES.get(ttype)
|
||
|
|
if fname:
|
||
|
|
return fname
|
||
|
|
aname = ''
|
||
|
|
while fname is None:
|
||
|
|
aname = '-' + ttype[-1] + aname
|
||
|
|
ttype = ttype.parent
|
||
|
|
fname = STANDARD_TYPES.get(ttype)
|
||
|
|
return fname + aname
|
||
|
|
|
||
|
|
|
||
|
|
CSSFILE_TEMPLATE = '''\
|
||
|
|
/*
|
||
|
|
generated by Pygments <https://pygments.org/>
|
||
|
|
Copyright 2006-2019 by the Pygments team.
|
||
|
|
Licensed under the BSD license, see LICENSE for details.
|
||
|
|
*/
|
||
|
|
td.linenos { background-color: #f0f0f0; padding-right: 10px; }
|
||
|
|
span.lineno { background-color: #f0f0f0; padding: 0 5px 0 5px; }
|
||
|
|
pre { line-height: 125%%; }
|
||
|
|
%(styledefs)s
|
||
|
|
'''
|
||
|
|
|
||
|
|
DOC_HEADER = '''\
|
||
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
|
||
|
|
"http://www.w3.org/TR/html4/strict.dtd">
|
||
|
|
<!--
|
||
|
|
generated by Pygments <https://pygments.org/>
|
||
|
|
Copyright 2006-2019 by the Pygments team.
|
||
|
|
Licensed under the BSD license, see LICENSE for details.
|
||
|
|
-->
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<title>%(title)s</title>
|
||
|
|
<meta http-equiv="content-type" content="text/html; charset=%(encoding)s">
|
||
|
|
<style type="text/css">
|
||
|
|
''' + CSSFILE_TEMPLATE + '''
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<h2>%(title)s</h2>
|
||
|
|
|
||
|
|
'''
|
||
|
|
|
||
|
|
DOC_HEADER_EXTERNALCSS = '''\
|
||
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
|
||
|
|
"http://www.w3.org/TR/html4/strict.dtd">
|
||
|
|
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<title>%(title)s</title>
|
||
|
|
<meta http-equiv="content-type" content="text/html; charset=%(encoding)s">
|
||
|
|
<link rel="stylesheet" href="%(cssfile)s" type="text/css">
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<h2>%(title)s</h2>
|
||
|
|
|
||
|
|
'''
|
||
|
|
|
||
|
|
DOC_FOOTER = '''\
|
||
|
|
</body>
|
||
|
|
</html>
|
||
|
|
'''
|
||
|
|
|
||
|
|
|
||
|
|
class HtmlFormatter(Formatter):
|
||
|
|
r"""
|
||
|
|
Format tokens as HTML 4 ``<span>`` tags within a ``<pre>`` tag, wrapped
|
||
|
|
in a ``<div>`` tag. The ``<div>``'s CSS class can be set by the `cssclass`
|
||
|
|
option.
|
||
|
|
|
||
|
|
If the `linenos` option is set to ``"table"``, the ``<pre>`` is
|
||
|
|
additionally wrapped inside a ``<table>`` which has one row and two
|
||
|
|
cells: one containing the line numbers and one containing the code.
|
||
|
|
Example:
|
||
|
|
|
||
|
|
.. sourcecode:: html
|
||
|
|
|
||
|
|
<div class="highlight" >
|
||
|
|
<table><tr>
|
||
|
|
<td class="linenos" title="click to toggle"
|
||
|
|
onclick="with (this.firstChild.style)
|
||
|
|
{ display = (display == '') ? 'none' : '' }">
|
||
|
|
<pre>1
|
||
|
|
2</pre>
|
||
|
|
</td>
|
||
|
|
<td class="code">
|
||
|
|
<pre><span class="Ke">def </span><span class="NaFu">foo</span>(bar):
|
||
|
|
<span class="Ke">pass</span>
|
||
|
|
</pre>
|
||
|
|
</td>
|
||
|
|
</tr></table></div>
|
||
|
|
|
||
|
|
(whitespace added to improve clarity).
|
||
|
|
|
||
|
|
Wrapping can be disabled using the `nowrap` option.
|
||
|
|
|
||
|
|
A list of lines can be specified using the `hl_lines` option to make these
|
||
|
|
lines highlighted (as of Pygments 0.11).
|
||
|
|
|
||
|
|
With the `full` option, a complete HTML 4 document is output, including
|
||
|
|
the style definitions inside a ``<style>`` tag, or in a separate file if
|
||
|
|
the `cssfile` option is given.
|
||
|
|
|
||
|
|
When `tagsfile` is set to the path of a ctags index file, it is used to
|
||
|
|
generate hyperlinks from names to their definition. You must enable
|
||
|
|
`lineanchors` and run ctags with the `-n` option for this to work. The
|
||
|
|
`python-ctags` module from PyPI must be installed to use this feature;
|
||
|
|
otherwise a `RuntimeError` will be raised.
|
||
|
|
|
||
|
|
The `get_style_defs(arg='')` method of a `HtmlFormatter` returns a string
|
||
|
|
containing CSS rules for the CSS classes used by the formatter. The
|
||
|
|
argument `arg` can be used to specify additional CSS selectors that
|
||
|
|
are prepended to the classes. A call `fmter.get_style_defs('td .code')`
|
||
|
|
would result in the following CSS classes:
|
||
|
|
|
||
|
|
.. sourcecode:: css
|
||
|
|
|
||
|
|
td .code .kw { font-weight: bold; color: #00FF00 }
|
||
|
|
td .code .cm { color: #999999 }
|
||
|
|
...
|
||
|
|
|
||
|
|
If you have Pygments 0.6 or higher, you can also pass a list or tuple to the
|
||
|
|
`get_style_defs()` method to request multiple prefixes for the tokens:
|
||
|
|
|
||
|
|
.. sourcecode:: python
|
||
|
|
|
||
|
|
formatter.get_style_defs(['div.syntax pre', 'pre.syntax'])
|
||
|
|
|
||
|
|
The output would then look like this:
|
||
|
|
|
||
|
|
.. sourcecode:: css
|
||
|
|
|
||
|
|
div.syntax pre .kw,
|
||
|
|
pre.syntax .kw { font-weight: bold; color: #00FF00 }
|
||
|
|
div.syntax pre .cm,
|
||
|
|
pre.syntax .cm { color: #999999 }
|
||
|
|
...
|
||
|
|
|
||
|
|
Additional options accepted:
|
||
|
|
|
||
|
|
`nowrap`
|
||
|
|
If set to ``True``, don't wrap the tokens at all, not even inside a ``<pre>``
|
||
|
|
tag. This disables most other options (default: ``False``).
|
||
|
|
|
||
|
|
`full`
|
||
|
|
Tells the formatter to output a "full" document, i.e. a complete
|
||
|
|
self-contained document (default: ``False``).
|
||
|
|
|
||
|
|
`title`
|
||
|
|
If `full` is true, the title that should be used to caption the
|
||
|
|
document (default: ``''``).
|
||
|
|
|
||
|
|
`style`
|
||
|
|
The style to use, can be a string or a Style subclass (default:
|
||
|
|
``'default'``). This option has no effect if the `cssfile`
|
||
|
|
and `noclobber_cssfile` option are given and the file specified in
|
||
|
|
`cssfile` exists.
|
||
|
|
|
||
|
|
`noclasses`
|
||
|
|
If set to true, token ``<span>`` tags will not use CSS classes, but
|
||
|
|
inline styles. This is not recommended for larger pieces of code since
|
||
|
|
it increases output size by quite a bit (default: ``False``).
|
||
|
|
|
||
|
|
`classprefix`
|
||
|
|
Since the token types use relatively short class names, they may clash
|
||
|
|
with some of your own class names. In this case you can use the
|
||
|
|
`classprefix` option to give a string to prepend to all Pygments-generated
|
||
|
|
CSS class names for token types.
|
||
|
|
Note that this option also affects the output of `get_style_defs()`.
|
||
|
|
|
||
|
|
`cssclass`
|
||
|
|
CSS class for the wrapping ``<div>`` tag (default: ``'highlight'``).
|
||
|
|
If you set this option, the default selector for `get_style_defs()`
|
||
|
|
will be this class.
|
||
|
|
|
||
|
|
.. versionadded:: 0.9
|
||
|
|
If you select the ``'table'`` line numbers, the wrapping table will
|
||
|
|
have a CSS class of this string plus ``'table'``, the default is
|
||
|
|
accordingly ``'highlighttable'``.
|
||
|
|
|
||
|
|
`cssstyles`
|
||
|
|
Inline CSS styles for the wrapping ``<div>`` tag (default: ``''``).
|
||
|
|
|
||
|
|
`prestyles`
|
||
|
|
Inline CSS styles for the ``<pre>`` tag (default: ``''``).
|
||
|
|
|
||
|
|
.. versionadded:: 0.11
|
||
|
|
|
||
|
|
`cssfile`
|
||
|
|
If the `full` option is true and this option is given, it must be the
|
||
|
|
name of an external file. If the filename does not include an absolute
|
||
|
|
path, the file's path will be assumed to be relative to the main output
|
||
|
|
file's path, if the latter can be found. The stylesheet is then written
|
||
|
|
to this file instead of the HTML file.
|
||
|
|
|
||
|
|
.. versionadded:: 0.6
|
||
|
|
|
||
|
|
`noclobber_cssfile`
|
||
|
|
If `cssfile` is given and the specified file exists, the css file will
|
||
|
|
not be overwritten. This allows the use of the `full` option in
|
||
|
|
combination with a user specified css file. Default is ``False``.
|
||
|
|
|
||
|
|
.. versionadded:: 1.1
|
||
|
|
|
||
|
|
`linenos`
|
||
|
|
If set to ``'table'``, output line numbers as a table with two cells,
|
||
|
|
one containing the line numbers, the other the whole code. This is
|
||
|
|
copy-and-paste-friendly, but may cause alignment problems with some
|
||
|
|
browsers or fonts. If set to ``'inline'``, the line numbers will be
|
||
|
|
integrated in the ``<pre>`` tag that contains the code (that setting
|
||
|
|
is *new in Pygments 0.8*).
|
||
|
|
|
||
|
|
For compatibility with Pygments 0.7 and earlier, every true value
|
||
|
|
except ``'inline'`` means the same as ``'table'`` (in particular, that
|
||
|
|
means also ``True``).
|
||
|
|
|
||
|
|
The default value is ``False``, which means no line numbers at all.
|
||
|
|
|
||
|
|
**Note:** with the default ("table") line number mechanism, the line
|
||
|
|
numbers and code can have different line heights in Internet Explorer
|
||
|
|
unless you give the enclosing ``<pre>`` tags an explicit ``line-height``
|
||
|
|
CSS property (you get the default line spacing with ``line-height:
|
||
|
|
125%``).
|
||
|
|
|
||
|
|
`hl_lines`
|
||
|
|
Specify a list of lines to be highlighted.
|
||
|
|
|
||
|
|
.. versionadded:: 0.11
|
||
|
|
|
||
|
|
`linenostart`
|
||
|
|
The line number for the first line (default: ``1``).
|
||
|
|
|
||
|
|
`linenostep`
|
||
|
|
If set to a number n > 1, only every nth line number is printed.
|
||
|
|
|
||
|
|
`linenospecial`
|
||
|
|
If set to a number n > 0, every nth line number is given the CSS
|
||
|
|
class ``"special"`` (default: ``0``).
|
||
|
|
|
||
|
|
`nobackground`
|
||
|
|
If set to ``True``, the formatter won't output the background color
|
||
|
|
for the wrapping element (this automatically defaults to ``False``
|
||
|
|
when there is no wrapping element [eg: no argument for the
|
||
|
|
`get_syntax_defs` method given]) (default: ``False``).
|
||
|
|
|
||
|
|
.. versionadded:: 0.6
|
||
|
|
|
||
|
|
`lineseparator`
|
||
|
|
This string is output between lines of code. It defaults to ``"\n"``,
|
||
|
|
which is enough to break a line inside ``<pre>`` tags, but you can
|
||
|
|
e.g. set it to ``"<br>"`` to get HTML line breaks.
|
||
|
|
|
||
|
|
.. versionadded:: 0.7
|
||
|
|
|
||
|
|
`lineanchors`
|
||
|
|
If set to a nonempty string, e.g. ``foo``, the formatter will wrap each
|
||
|
|
output line in an anchor tag with a ``name`` of ``foo-linenumber``.
|
||
|
|
This allows easy linking to certain lines.
|
||
|
|
|
||
|
|
.. versionadded:: 0.9
|
||
|
|
|
||
|
|
`linespans`
|
||
|
|
If set to a nonempty string, e.g. ``foo``, the formatter will wrap each
|
||
|
|
output line in a span tag with an ``id`` of ``foo-linenumber``.
|
||
|
|
This allows easy access to lines via javascript.
|
||
|
|
|
||
|
|
.. versionadded:: 1.6
|
||
|
|
|
||
|
|
`anchorlinenos`
|
||
|
|
If set to `True`, will wrap line numbers in <a> tags. Used in
|
||
|
|
combination with `linenos` and `lineanchors`.
|
||
|
|
|
||
|
|
`tagsfile`
|
||
|
|
If set to the path of a ctags file, wrap names in anchor tags that
|
||
|
|
link to their definitions. `lineanchors` should be used, and the
|
||
|
|
tags file should specify line numbers (see the `-n` option to ctags).
|
||
|
|
|
||
|
|
.. versionadded:: 1.6
|
||
|
|
|
||
|
|
`tagurlformat`
|
||
|
|
A string formatting pattern used to generate links to ctags definitions.
|
||
|
|
Available variables are `%(path)s`, `%(fname)s` and `%(fext)s`.
|
||
|
|
Defaults to an empty string, resulting in just `#prefix-number` links.
|
||
|
|
|
||
|
|
.. versionadded:: 1.6
|
||
|
|
|
||
|
|
`filename`
|
||
|
|
A string used to generate a filename when rendering ``<pre>`` blocks,
|
||
|
|
for example if displaying source code.
|
||
|
|
|
||
|
|
.. versionadded:: 2.1
|
||
|
|
|
||
|
|
`wrapcode`
|
||
|
|
Wrap the code inside ``<pre>`` blocks using ``<code>``, as recommended
|
||
|
|
by the HTML5 specification.
|
||
|
|
|
||
|
|
.. versionadded:: 2.4
|
||
|
|
|
||
|
|
|
||
|
|
**Subclassing the HTML formatter**
|
||
|
|
|
||
|
|
.. versionadded:: 0.7
|
||
|
|
|
||
|
|
The HTML formatter is now built in a way that allows easy subclassing, thus
|
||
|
|
customizing the output HTML code. The `format()` method calls
|
||
|
|
`self._format_lines()` which returns a generator that yields tuples of ``(1,
|
||
|
|
line)``, where the ``1`` indicates that the ``line`` is a line of the
|
||
|
|
formatted source code.
|
||
|
|
|
||
|
|
If the `nowrap` option is set, the generator is the iterated over and the
|
||
|
|
resulting HTML is output.
|
||
|
|
|
||
|
|
Otherwise, `format()` calls `self.wrap()`, which wraps the generator with
|
||
|
|
other generators. These may add some HTML code to the one generated by
|
||
|
|
`_format_lines()`, either by modifying the lines generated by the latter,
|
||
|
|
then yielding them again with ``(1, line)``, and/or by yielding other HTML
|
||
|
|
code before or after the lines, with ``(0, html)``. The distinction between
|
||
|
|
source lines and other code makes it possible to wrap the generator multiple
|
||
|
|
times.
|
||
|
|
|
||
|
|
The default `wrap()` implementation adds a ``<div>`` and a ``<pre>`` tag.
|
||
|
|
|
||
|
|
A custom `HtmlFormatter` subclass could look like this:
|
||
|
|
|
||
|
|
.. sourcecode:: python
|
||
|
|
|
||
|
|
class CodeHtmlFormatter(HtmlFormatter):
|
||
|
|
|
||
|
|
def wrap(self, source, outfile):
|
||
|
|
return self._wrap_code(source)
|
||
|
|
|
||
|
|
def _wrap_code(self, source):
|
||
|
|
yield 0, '<code>'
|
||
|
|
for i, t in source:
|
||
|
|
if i == 1:
|
||
|
|
# it's a line of formatted code
|
||
|
|
t += '<br>'
|
||
|
|
yield i, t
|
||
|
|
yield 0, '</code>'
|
||
|
|
|
||
|
|
This results in wrapping the formatted lines with a ``<code>`` tag, where the
|
||
|
|
source lines are broken using ``<br>`` tags.
|
||
|
|
|
||
|
|
After calling `wrap()`, the `format()` method also adds the "line numbers"
|
||
|
|
and/or "full document" wrappers if the respective options are set. Then, all
|
||
|
|
HTML yielded by the wrapped generator is output.
|
||
|
|
"""
|
||
|
|
|
||
|
|
name = 'HTML'
|
||
|
|
aliases = ['html']
|
||
|
|
filenames = ['*.html', '*.htm']
|
||
|
|
|
||
|
|
def __init__(self, **options):
|
||
|
|
Formatter.__init__(self, **options)
|
||
|
|
self.title = self._decodeifneeded(self.title)
|
||
|
|
self.nowrap = get_bool_opt(options, 'nowrap', False)
|
||
|
|
self.noclasses = get_bool_opt(options, 'noclasses', False)
|
||
|
|
self.classprefix = options.get('classprefix', '')
|
||
|
|
self.cssclass = self._decodeifneeded(options.get('cssclass', 'highlight'))
|
||
|
|
self.cssstyles = self._decodeifneeded(options.get('cssstyles', ''))
|
||
|
|
self.prestyles = self._decodeifneeded(options.get('prestyles', ''))
|
||
|
|
self.cssfile = self._decodeifneeded(options.get('cssfile', ''))
|
||
|
|
self.noclobber_cssfile = get_bool_opt(options, 'noclobber_cssfile', False)
|
||
|
|
self.tagsfile = self._decodeifneeded(options.get('tagsfile', ''))
|
||
|
|
self.tagurlformat = self._decodeifneeded(options.get('tagurlformat', ''))
|
||
|
|
self.filename = self._decodeifneeded(options.get('filename', ''))
|
||
|
|
self.wrapcode = get_bool_opt(options, 'wrapcode', False)
|
||
|
|
|
||
|
|
if self.tagsfile:
|
||
|
|
if not ctags:
|
||
|
|
raise RuntimeError('The "ctags" package must to be installed '
|
||
|
|
'to be able to use the "tagsfile" feature.')
|
||
|
|
self._ctags = ctags.CTags(self.tagsfile)
|
||
|
|
|
||
|
|
linenos = options.get('linenos', False)
|
||
|
|
if linenos == 'inline':
|
||
|
|
self.linenos = 2
|
||
|
|
elif linenos:
|
||
|
|
# compatibility with <= 0.7
|
||
|
|
self.linenos = 1
|
||
|
|
else:
|
||
|
|
self.linenos = 0
|
||
|
|
self.linenostart = abs(get_int_opt(options, 'linenostart', 1))
|
||
|
|
self.linenostep = abs(get_int_opt(options, 'linenostep', 1))
|
||
|
|
self.linenospecial = abs(get_int_opt(options, 'linenospecial', 0))
|
||
|
|
self.nobackground = get_bool_opt(options, 'nobackground', False)
|
||
|
|
self.lineseparator = options.get('lineseparator', u'\n')
|
||
|
|
self.lineanchors = options.get('lineanchors', '')
|
||
|
|
self.linespans = options.get('linespans', '')
|
||
|
|
self.anchorlinenos = options.get('anchorlinenos', False)
|
||
|
|
self.hl_lines = set()
|
||
|
|
for lineno in get_list_opt(options, 'hl_lines', []):
|
||
|
|
try:
|
||
|
|
self.hl_lines.add(int(lineno))
|
||
|
|
except ValueError:
|
||
|
|
pass
|
||
|
|
|
||
|
|
self._create_stylesheet()
|
||
|
|
|
||
|
|
def _get_css_class(self, ttype):
|
||
|
|
"""Return the css class of this token type prefixed with
|
||
|
|
the classprefix option."""
|
||
|
|
ttypeclass = _get_ttype_class(ttype)
|
||
|
|
if ttypeclass:
|
||
|
|
return self.classprefix + ttypeclass
|
||
|
|
return ''
|
||
|
|
|
||
|
|
def _get_css_classes(self, ttype):
|
||
|
|
"""Return the css classes of this token type prefixed with
|
||
|
|
the classprefix option."""
|
||
|
|
cls = self._get_css_class(ttype)
|
||
|
|
while ttype not in STANDARD_TYPES:
|
||
|
|
ttype = ttype.parent
|
||
|
|
cls = self._get_css_class(ttype) + ' ' + cls
|
||
|
|
return cls
|
||
|
|
|
||
|
|
def _create_stylesheet(self):
|
||
|
|
t2c = self.ttype2class = {Token: ''}
|
||
|
|
c2s = self.class2style = {}
|
||
|
|
for ttype, ndef in self.style:
|
||
|
|
name = self._get_css_class(ttype)
|
||
|
|
style = ''
|
||
|
|
if ndef['color']:
|
||
|
|
style += 'color: %s; ' % webify(ndef['color'])
|
||
|
|
if ndef['bold']:
|
||
|
|
style += 'font-weight: bold; '
|
||
|
|
if ndef['italic']:
|
||
|
|
style += 'font-style: italic; '
|
||
|
|
if ndef['underline']:
|
||
|
|
style += 'text-decoration: underline; '
|
||
|
|
if ndef['bgcolor']:
|
||
|
|
style += 'background-color: %s; ' % webify(ndef['bgcolor'])
|
||
|
|
if ndef['border']:
|
||
|
|
style += 'border: 1px solid %s; ' % webify(ndef['border'])
|
||
|
|
if style:
|
||
|
|
t2c[ttype] = name
|
||
|
|
# save len(ttype) to enable ordering the styles by
|
||
|
|
# hierarchy (necessary for CSS cascading rules!)
|
||
|
|
c2s[name] = (style[:-2], ttype, len(ttype))
|
||
|
|
|
||
|
|
def get_style_defs(self, arg=None):
|
||
|
|
"""
|
||
|
|
Return CSS style definitions for the classes produced by the current
|
||
|
|
highlighting style. ``arg`` can be a string or list of selectors to
|
||
|
|
insert before the token type classes.
|
||
|
|
"""
|
||
|
|
if arg is None:
|
||
|
|
arg = ('cssclass' in self.options and '.'+self.cssclass or '')
|
||
|
|
if isinstance(arg, str):
|
||
|
|
args = [arg]
|
||
|
|
else:
|
||
|
|
args = list(arg)
|
||
|
|
|
||
|
|
def prefix(cls):
|
||
|
|
if cls:
|
||
|
|
cls = '.' + cls
|
||
|
|
tmp = []
|
||
|
|
for arg in args:
|
||
|
|
tmp.append((arg and arg + ' ' or '') + cls)
|
||
|
|
return ', '.join(tmp)
|
||
|
|
|
||
|
|
styles = [(level, ttype, cls, style)
|
||
|
|
for cls, (style, ttype, level) in self.class2style.items()
|
||
|
|
if cls and style]
|
||
|
|
styles.sort()
|
||
|
|
lines = ['%s { %s } /* %s */' % (prefix(cls), style, repr(ttype)[6:])
|
||
|
|
for (level, ttype, cls, style) in styles]
|
||
|
|
if arg and not self.nobackground and \
|
||
|
|
self.style.background_color is not None:
|
||
|
|
text_style = ''
|
||
|
|
if Text in self.ttype2class:
|
||
|
|
text_style = ' ' + self.class2style[self.ttype2class[Text]][0]
|
||
|
|
lines.insert(0, '%s { background: %s;%s }' %
|
||
|
|
(prefix(''), self.style.background_color, text_style))
|
||
|
|
if self.style.highlight_color is not None:
|
||
|
|
lines.insert(0, '%s.hll { background-color: %s }' %
|
||
|
|
(prefix(''), self.style.highlight_color))
|
||
|
|
return '\n'.join(lines)
|
||
|
|
|
||
|
|
def _decodeifneeded(self, value):
|
||
|
|
if isinstance(value, bytes):
|
||
|
|
if self.encoding:
|
||
|
|
return value.decode(self.encoding)
|
||
|
|
return value.decode()
|
||
|
|
return value
|
||
|
|
|
||
|
|
def _wrap_full(self, inner, outfile):
|
||
|
|
if self.cssfile:
|
||
|
|
if os.path.isabs(self.cssfile):
|
||
|
|
# it's an absolute filename
|
||
|
|
cssfilename = self.cssfile
|
||
|
|
else:
|
||
|
|
try:
|
||
|
|
filename = outfile.name
|
||
|
|
if not filename or filename[0] == '<':
|
||
|
|
# pseudo files, e.g. name == '<fdopen>'
|
||
|
|
raise AttributeError
|
||
|
|
cssfilename = os.path.join(os.path.dirname(filename),
|
||
|
|
self.cssfile)
|
||
|
|
except AttributeError:
|
||
|
|
print('Note: Cannot determine output file name, '
|
||
|
|
'using current directory as base for the CSS file name',
|
||
|
|
file=sys.stderr)
|
||
|
|
cssfilename = self.cssfile
|
||
|
|
# write CSS file only if noclobber_cssfile isn't given as an option.
|
||
|
|
try:
|
||
|
|
if not os.path.exists(cssfilename) or not self.noclobber_cssfile:
|
||
|
|
with open(cssfilename, "w") as cf:
|
||
|
|
cf.write(CSSFILE_TEMPLATE %
|
||
|
|
{'styledefs': self.get_style_defs('body')})
|
||
|
|
except IOError as err:
|
||
|
|
err.strerror = 'Error writing CSS file: ' + err.strerror
|
||
|
|
raise
|
||
|
|
|
||
|
|
yield 0, (DOC_HEADER_EXTERNALCSS %
|
||
|
|
dict(title=self.title,
|
||
|
|
cssfile=self.cssfile,
|
||
|
|
encoding=self.encoding))
|
||
|
|
else:
|
||
|
|
yield 0, (DOC_HEADER %
|
||
|
|
dict(title=self.title,
|
||
|
|
styledefs=self.get_style_defs('body'),
|
||
|
|
encoding=self.encoding))
|
||
|
|
|
||
|
|
for t, line in inner:
|
||
|
|
yield t, line
|
||
|
|
yield 0, DOC_FOOTER
|
||
|
|
|
||
|
|
def _wrap_tablelinenos(self, inner):
|
||
|
|
dummyoutfile = StringIO()
|
||
|
|
lncount = 0
|
||
|
|
for t, line in inner:
|
||
|
|
if t:
|
||
|
|
lncount += 1
|
||
|
|
dummyoutfile.write(line)
|
||
|
|
|
||
|
|
fl = self.linenostart
|
||
|
|
mw = len(str(lncount + fl - 1))
|
||
|
|
sp = self.linenospecial
|
||
|
|
st = self.linenostep
|
||
|
|
la = self.lineanchors
|
||
|
|
aln = self.anchorlinenos
|
||
|
|
nocls = self.noclasses
|
||
|
|
if sp:
|
||
|
|
lines = []
|
||
|
|
|
||
|
|
for i in range(fl, fl+lncount):
|
||
|
|
if i % st == 0:
|
||
|
|
if i % sp == 0:
|
||
|
|
if aln:
|
||
|
|
lines.append('<a href="#%s-%d" class="special">%*d</a>' %
|
||
|
|
(la, i, mw, i))
|
||
|
|
else:
|
||
|
|
lines.append('<span class="special">%*d</span>' % (mw, i))
|
||
|
|
else:
|
||
|
|
if aln:
|
||
|
|
lines.append('<a href="#%s-%d">%*d</a>' % (la, i, mw, i))
|
||
|
|
else:
|
||
|
|
lines.append('%*d' % (mw, i))
|
||
|
|
else:
|
||
|
|
lines.append('')
|
||
|
|
ls = '\n'.join(lines)
|
||
|
|
else:
|
||
|
|
lines = []
|
||
|
|
for i in range(fl, fl+lncount):
|
||
|
|
if i % st == 0:
|
||
|
|
if aln:
|
||
|
|
lines.append('<a href="#%s-%d">%*d</a>' % (la, i, mw, i))
|
||
|
|
else:
|
||
|
|
lines.append('%*d' % (mw, i))
|
||
|
|
else:
|
||
|
|
lines.append('')
|
||
|
|
ls = '\n'.join(lines)
|
||
|
|
|
||
|
|
# in case you wonder about the seemingly redundant <div> here: since the
|
||
|
|
# content in the other cell also is wrapped in a div, some browsers in
|
||
|
|
# some configurations seem to mess up the formatting...
|
||
|
|
if nocls:
|
||
|
|
yield 0, ('<table class="%stable">' % self.cssclass +
|
||
|
|
'<tr><td><div class="linenodiv" '
|
||
|
|
'style="background-color: #f0f0f0; padding-right: 10px">'
|
||
|
|
'<pre style="line-height: 125%">' +
|
||
|
|
ls + '</pre></div></td><td class="code">')
|
||
|
|
else:
|
||
|
|
yield 0, ('<table class="%stable">' % self.cssclass +
|
||
|
|
'<tr><td class="linenos"><div class="linenodiv"><pre>' +
|
||
|
|
ls + '</pre></div></td><td class="code">')
|
||
|
|
yield 0, dummyoutfile.getvalue()
|
||
|
|
yield 0, '</td></tr></table>'
|
||
|
|
|
||
|
|
def _wrap_inlinelinenos(self, inner):
|
||
|
|
# need a list of lines since we need the width of a single number :(
|
||
|
|
lines = list(inner)
|
||
|
|
sp = self.linenospecial
|
||
|
|
st = self.linenostep
|
||
|
|
num = self.linenostart
|
||
|
|
mw = len(str(len(lines) + num - 1))
|
||
|
|
|
||
|
|
if self.noclasses:
|
||
|
|
if sp:
|
||
|
|
for t, line in lines:
|
||
|
|
if num % sp == 0:
|
||
|
|
style = 'background-color: #ffffc0; padding: 0 5px 0 5px'
|
||
|
|
else:
|
||
|
|
style = 'background-color: #f0f0f0; padding: 0 5px 0 5px'
|
||
|
|
yield 1, '<span style="%s">%*s </span>' % (
|
||
|
|
style, mw, (num % st and ' ' or num)) + line
|
||
|
|
num += 1
|
||
|
|
else:
|
||
|
|
for t, line in lines:
|
||
|
|
yield 1, ('<span style="background-color: #f0f0f0; '
|
||
|
|
'padding: 0 5px 0 5px">%*s </span>' % (
|
||
|
|
mw, (num % st and ' ' or num)) + line)
|
||
|
|
num += 1
|
||
|
|
elif sp:
|
||
|
|
for t, line in lines:
|
||
|
|
yield 1, '<span class="lineno%s">%*s </span>' % (
|
||
|
|
num % sp == 0 and ' special' or '', mw,
|
||
|
|
(num % st and ' ' or num)) + line
|
||
|
|
num += 1
|
||
|
|
else:
|
||
|
|
for t, line in lines:
|
||
|
|
yield 1, '<span class="lineno">%*s </span>' % (
|
||
|
|
mw, (num % st and ' ' or num)) + line
|
||
|
|
num += 1
|
||
|
|
|
||
|
|
def _wrap_lineanchors(self, inner):
|
||
|
|
s = self.lineanchors
|
||
|
|
# subtract 1 since we have to increment i *before* yielding
|
||
|
|
i = self.linenostart - 1
|
||
|
|
for t, line in inner:
|
||
|
|
if t:
|
||
|
|
i += 1
|
||
|
|
yield 1, '<a name="%s-%d"></a>' % (s, i) + line
|
||
|
|
else:
|
||
|
|
yield 0, line
|
||
|
|
|
||
|
|
def _wrap_linespans(self, inner):
|
||
|
|
s = self.linespans
|
||
|
|
i = self.linenostart - 1
|
||
|
|
for t, line in inner:
|
||
|
|
if t:
|
||
|
|
i += 1
|
||
|
|
yield 1, '<span id="%s-%d">%s</span>' % (s, i, line)
|
||
|
|
else:
|
||
|
|
yield 0, line
|
||
|
|
|
||
|
|
def _wrap_div(self, inner):
|
||
|
|
style = []
|
||
|
|
if (self.noclasses and not self.nobackground and
|
||
|
|
self.style.background_color is not None):
|
||
|
|
style.append('background: %s' % (self.style.background_color,))
|
||
|
|
if self.cssstyles:
|
||
|
|
style.append(self.cssstyles)
|
||
|
|
style = '; '.join(style)
|
||
|
|
|
||
|
|
yield 0, ('<div' + (self.cssclass and ' class="%s"' % self.cssclass) +
|
||
|
|
(style and (' style="%s"' % style)) + '>')
|
||
|
|
for tup in inner:
|
||
|
|
yield tup
|
||
|
|
yield 0, '</div>\n'
|
||
|
|
|
||
|
|
def _wrap_pre(self, inner):
|
||
|
|
style = []
|
||
|
|
if self.prestyles:
|
||
|
|
style.append(self.prestyles)
|
||
|
|
if self.noclasses:
|
||
|
|
style.append('line-height: 125%')
|
||
|
|
style = '; '.join(style)
|
||
|
|
|
||
|
|
if self.filename:
|
||
|
|
yield 0, ('<span class="filename">' + self.filename + '</span>')
|
||
|
|
|
||
|
|
# the empty span here is to keep leading empty lines from being
|
||
|
|
# ignored by HTML parsers
|
||
|
|
yield 0, ('<pre' + (style and ' style="%s"' % style) + '><span></span>')
|
||
|
|
for tup in inner:
|
||
|
|
yield tup
|
||
|
|
yield 0, '</pre>'
|
||
|
|
|
||
|
|
def _wrap_code(self, inner):
|
||
|
|
yield 0, '<code>'
|
||
|
|
for tup in inner:
|
||
|
|
yield tup
|
||
|
|
yield 0, '</code>'
|
||
|
|
|
||
|
|
def _format_lines(self, tokensource):
|
||
|
|
"""
|
||
|
|
Just format the tokens, without any wrapping tags.
|
||
|
|
Yield individual lines.
|
||
|
|
"""
|
||
|
|
nocls = self.noclasses
|
||
|
|
lsep = self.lineseparator
|
||
|
|
# for <span style=""> lookup only
|
||
|
|
getcls = self.ttype2class.get
|
||
|
|
c2s = self.class2style
|
||
|
|
escape_table = _escape_html_table
|
||
|
|
tagsfile = self.tagsfile
|
||
|
|
|
||
|
|
lspan = ''
|
||
|
|
line = []
|
||
|
|
for ttype, value in tokensource:
|
||
|
|
if nocls:
|
||
|
|
cclass = getcls(ttype)
|
||
|
|
while cclass is None:
|
||
|
|
ttype = ttype.parent
|
||
|
|
cclass = getcls(ttype)
|
||
|
|
cspan = cclass and '<span style="%s">' % c2s[cclass][0] or ''
|
||
|
|
else:
|
||
|
|
cls = self._get_css_classes(ttype)
|
||
|
|
cspan = cls and '<span class="%s">' % cls or ''
|
||
|
|
|
||
|
|
parts = value.translate(escape_table).split('\n')
|
||
|
|
|
||
|
|
if tagsfile and ttype in Token.Name:
|
||
|
|
filename, linenumber = self._lookup_ctag(value)
|
||
|
|
if linenumber:
|
||
|
|
base, filename = os.path.split(filename)
|
||
|
|
if base:
|
||
|
|
base += '/'
|
||
|
|
filename, extension = os.path.splitext(filename)
|
||
|
|
url = self.tagurlformat % {'path': base, 'fname': filename,
|
||
|
|
'fext': extension}
|
||
|
|
parts[0] = "<a href=\"%s#%s-%d\">%s" % \
|
||
|
|
(url, self.lineanchors, linenumber, parts[0])
|
||
|
|
parts[-1] = parts[-1] + "</a>"
|
||
|
|
|
||
|
|
# for all but the last line
|
||
|
|
for part in parts[:-1]:
|
||
|
|
if line:
|
||
|
|
if lspan != cspan:
|
||
|
|
line.extend(((lspan and '</span>'), cspan, part,
|
||
|
|
(cspan and '</span>'), lsep))
|
||
|
|
else: # both are the same
|
||
|
|
line.extend((part, (lspan and '</span>'), lsep))
|
||
|
|
yield 1, ''.join(line)
|
||
|
|
line = []
|
||
|
|
elif part:
|
||
|
|
yield 1, ''.join((cspan, part, (cspan and '</span>'), lsep))
|
||
|
|
else:
|
||
|
|
yield 1, lsep
|
||
|
|
# for the last line
|
||
|
|
if line and parts[-1]:
|
||
|
|
if lspan != cspan:
|
||
|
|
line.extend(((lspan and '</span>'), cspan, parts[-1]))
|
||
|
|
lspan = cspan
|
||
|
|
else:
|
||
|
|
line.append(parts[-1])
|
||
|
|
elif parts[-1]:
|
||
|
|
line = [cspan, parts[-1]]
|
||
|
|
lspan = cspan
|
||
|
|
# else we neither have to open a new span nor set lspan
|
||
|
|
|
||
|
|
if line:
|
||
|
|
line.extend(((lspan and '</span>'), lsep))
|
||
|
|
yield 1, ''.join(line)
|
||
|
|
|
||
|
|
def _lookup_ctag(self, token):
|
||
|
|
entry = ctags.TagEntry()
|
||
|
|
if self._ctags.find(entry, token, 0):
|
||
|
|
return entry['file'], entry['lineNumber']
|
||
|
|
else:
|
||
|
|
return None, None
|
||
|
|
|
||
|
|
def _highlight_lines(self, tokensource):
|
||
|
|
"""
|
||
|
|
Highlighted the lines specified in the `hl_lines` option by
|
||
|
|
post-processing the token stream coming from `_format_lines`.
|
||
|
|
"""
|
||
|
|
hls = self.hl_lines
|
||
|
|
|
||
|
|
for i, (t, value) in enumerate(tokensource):
|
||
|
|
if t != 1:
|
||
|
|
yield t, value
|
||
|
|
if i + 1 in hls: # i + 1 because Python indexes start at 0
|
||
|
|
if self.noclasses:
|
||
|
|
style = ''
|
||
|
|
if self.style.highlight_color is not None:
|
||
|
|
style = (' style="background-color: %s"' %
|
||
|
|
(self.style.highlight_color,))
|
||
|
|
yield 1, '<span%s>%s</span>' % (style, value)
|
||
|
|
else:
|
||
|
|
yield 1, '<span class="hll">%s</span>' % value
|
||
|
|
else:
|
||
|
|
yield 1, value
|
||
|
|
|
||
|
|
def wrap(self, source, outfile):
|
||
|
|
"""
|
||
|
|
Wrap the ``source``, which is a generator yielding
|
||
|
|
individual lines, in custom generators. See docstring
|
||
|
|
for `format`. Can be overridden.
|
||
|
|
"""
|
||
|
|
if self.wrapcode:
|
||
|
|
return self._wrap_div(self._wrap_pre(self._wrap_code(source)))
|
||
|
|
else:
|
||
|
|
return self._wrap_div(self._wrap_pre(source))
|
||
|
|
|
||
|
|
def format_unencoded(self, tokensource, outfile):
|
||
|
|
"""
|
||
|
|
The formatting process uses several nested generators; which of
|
||
|
|
them are used is determined by the user's options.
|
||
|
|
|
||
|
|
Each generator should take at least one argument, ``inner``,
|
||
|
|
and wrap the pieces of text generated by this.
|
||
|
|
|
||
|
|
Always yield 2-tuples: (code, text). If "code" is 1, the text
|
||
|
|
is part of the original tokensource being highlighted, if it's
|
||
|
|
0, the text is some piece of wrapping. This makes it possible to
|
||
|
|
use several different wrappers that process the original source
|
||
|
|
linewise, e.g. line number generators.
|
||
|
|
"""
|
||
|
|
source = self._format_lines(tokensource)
|
||
|
|
if self.hl_lines:
|
||
|
|
source = self._highlight_lines(source)
|
||
|
|
if not self.nowrap:
|
||
|
|
if self.linenos == 2:
|
||
|
|
source = self._wrap_inlinelinenos(source)
|
||
|
|
if self.lineanchors:
|
||
|
|
source = self._wrap_lineanchors(source)
|
||
|
|
if self.linespans:
|
||
|
|
source = self._wrap_linespans(source)
|
||
|
|
source = self.wrap(source, outfile)
|
||
|
|
if self.linenos == 1:
|
||
|
|
source = self._wrap_tablelinenos(source)
|
||
|
|
if self.full:
|
||
|
|
source = self._wrap_full(source, outfile)
|
||
|
|
|
||
|
|
for t, piece in source:
|
||
|
|
outfile.write(piece)
|