1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
|
# -*- coding: utf-8 -*-
"""
pygments.formatters.html
~~~~~~~~~~~~~~~~~~~~~~~~
Formatter for HTML output.
:copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from __future__ import print_function
import os
import sys
import os.path
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, \
StringIO, string_types, iteritems
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 _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 = '''\
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">
<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
**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', ''))
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', '\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; ' % 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; ' % ndef['bgcolor']
if ndef['border']:
style += 'border: 1px solid #%s; ' % 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, string_types):
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 iteritems(self.class2style)
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:
cf = open(cssfilename, "w")
cf.write(CSSFILE_TEMPLATE %
{'styledefs': self.get_style_defs('body')})
cf.close()
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 _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.
"""
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)
|
