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
|
# -*- coding: utf-8 -*-
"""
pygments.formatters.svg
~~~~~~~~~~~~~~~~~~~~~~~
Formatter for SVG output.
:copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.formatter import Formatter
from pygments.util import get_bool_opt, get_int_opt
__all__ = ['SvgFormatter']
def escape_html(text):
"""Escape &, <, > as well as single and double quotes for HTML."""
return text.replace('&', '&'). \
replace('<', '<'). \
replace('>', '>'). \
replace('"', '"'). \
replace("'", ''')
class2style = {}
class SvgFormatter(Formatter):
"""
Format tokens as an SVG graphics file. This formatter is still experimental.
Each line of code is a ``<text>`` element with explicit ``x`` and ``y``
coordinates containing ``<tspan>`` elements with the individual token styles.
By default, this formatter outputs a full SVG document including doctype
declaration and the ``<svg>`` root element.
.. versionadded:: 0.9
Additional options accepted:
`nowrap`
Don't wrap the SVG ``<text>`` elements in ``<svg><g>`` elements and
don't add a XML declaration and a doctype. If true, the `fontfamily`
and `fontsize` options are ignored. Defaults to ``False``.
`fontfamily`
The value to give the wrapping ``<g>`` element's ``font-family``
attribute, defaults to ``"monospace"``.
`fontsize`
The value to give the wrapping ``<g>`` element's ``font-size``
attribute, defaults to ``"14px"``.
`xoffset`
Starting offset in X direction, defaults to ``0``.
`yoffset`
Starting offset in Y direction, defaults to the font size if it is given
in pixels, or ``20`` else. (This is necessary since text coordinates
refer to the text baseline, not the top edge.)
`ystep`
Offset to add to the Y coordinate for each subsequent line. This should
roughly be the text size plus 5. It defaults to that value if the text
size is given in pixels, or ``25`` else.
`spacehack`
Convert spaces in the source to `` ``, which are non-breaking
spaces. SVG provides the ``xml:space`` attribute to control how
whitespace inside tags is handled, in theory, the ``preserve`` value
could be used to keep all whitespace as-is. However, many current SVG
viewers don't obey that rule, so this option is provided as a workaround
and defaults to ``True``.
"""
name = 'SVG'
aliases = ['svg']
filenames = ['*.svg']
def __init__(self, **options):
Formatter.__init__(self, **options)
self.nowrap = get_bool_opt(options, 'nowrap', False)
self.fontfamily = options.get('fontfamily', 'monospace')
self.fontsize = options.get('fontsize', '14px')
self.xoffset = get_int_opt(options, 'xoffset', 0)
fs = self.fontsize.strip()
if fs.endswith('px'): fs = fs[:-2].strip()
try:
int_fs = int(fs)
except:
int_fs = 20
self.yoffset = get_int_opt(options, 'yoffset', int_fs)
self.ystep = get_int_opt(options, 'ystep', int_fs + 5)
self.spacehack = get_bool_opt(options, 'spacehack', True)
self._stylecache = {}
def format_unencoded(self, tokensource, outfile):
"""
Format ``tokensource``, an iterable of ``(tokentype, tokenstring)``
tuples and write it into ``outfile``.
For our implementation we put all lines in their own 'line group'.
"""
x = self.xoffset
y = self.yoffset
if not self.nowrap:
if self.encoding:
outfile.write('<?xml version="1.0" encoding="%s"?>\n' %
self.encoding)
else:
outfile.write('<?xml version="1.0"?>\n')
outfile.write('<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" '
'"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/'
'svg10.dtd">\n')
outfile.write('<svg xmlns="http://www.w3.org/2000/svg">\n')
outfile.write('<g font-family="%s" font-size="%s">\n' %
(self.fontfamily, self.fontsize))
outfile.write('<text x="%s" y="%s" xml:space="preserve">' % (x, y))
for ttype, value in tokensource:
style = self._get_style(ttype)
tspan = style and '<tspan' + style + '>' or ''
tspanend = tspan and '</tspan>' or ''
value = escape_html(value)
if self.spacehack:
value = value.expandtabs().replace(' ', ' ')
parts = value.split('\n')
for part in parts[:-1]:
outfile.write(tspan + part + tspanend)
y += self.ystep
outfile.write('</text>\n<text x="%s" y="%s" '
'xml:space="preserve">' % (x, y))
outfile.write(tspan + parts[-1] + tspanend)
outfile.write('</text>')
if not self.nowrap:
outfile.write('</g></svg>\n')
def _get_style(self, tokentype):
if tokentype in self._stylecache:
return self._stylecache[tokentype]
otokentype = tokentype
while not self.style.styles_token(tokentype):
tokentype = tokentype.parent
value = self.style.style_for_token(tokentype)
result = ''
if value['color']:
result = ' fill="#' + value['color'] + '"'
if value['bold']:
result += ' font-weight="bold"'
if value['italic']:
result += ' font-style="italic"'
self._stylecache[otokentype] = result
return result
|
