-
-
Notifications
You must be signed in to change notification settings - Fork 307
Expand file tree
/
Copy pathtemplate_lib.py
More file actions
159 lines (134 loc) · 4.22 KB
/
template_lib.py
File metadata and controls
159 lines (134 loc) · 4.22 KB
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
from __future__ import annotations
import html
import os
import re
import shlex
import subprocess
import sys
import markdown_code_blocks
import markupsafe
ID_RE = re.compile(r' #([a-z0-9-]+)$')
SPECIAL_CHARS_RE = re.compile('[^a-z0-9 _-]')
ROW = '=r='
COL = ' =c= '
INDENT = ' ' * 8
def _render_table(code: str) -> str:
"""Renders our custom "table" type
```table
=r=
=c= col1
=c= col2
=r=
=c= col3
=c= col4
```
renders to
<table class="table table-bordered">
<tbody>
<tr><td>col1</td><td>col2</td></tr>
<tr><td>col3</td><td>col4</td></tr>
</tbody>
</table>
"""
output = ['<table class="table table-bordered"><tbody>']
in_row = False
col_buffer = None
def _maybe_end_col() -> None:
nonlocal col_buffer
if col_buffer is not None:
output.append(f'<td>{md(col_buffer)}</td>')
col_buffer = None
def _maybe_end_row() -> None:
nonlocal in_row
if in_row:
output.append('</tr>')
in_row = False
for line in code.splitlines(True):
if line.startswith(ROW):
_maybe_end_col()
_maybe_end_row()
in_row = True
output.append('<tr>')
elif line.startswith(COL):
_maybe_end_col()
col_buffer = line.removeprefix(COL)
elif col_buffer is not None:
if line == '\n':
col_buffer += line
else:
assert line.startswith(INDENT), line
col_buffer += line.removeprefix(INDENT)
else:
raise AssertionError(line)
_maybe_end_col()
_maybe_end_row()
output.append('</tbody></table>')
return ''.join(output)
def _render_cmd(code: str) -> str:
cmdstr = code.strip()
path = f'{os.path.dirname(sys.executable)}{os.pathsep}{os.environ["PATH"]}'
env = {**os.environ, 'PATH': path}
output = subprocess.check_output(shlex.split(cmdstr), env=env).decode()
return str(md(f'```pre-commit\n$ {cmdstr}\n{output}```'))
class Renderer(markdown_code_blocks.CodeRenderer):
def link(
self, link: str, text: str | None, title: str | None,
) -> str:
if link.startswith('_#'):
a_id = link.removeprefix('_#')
return f'<a id="{a_id}" href="#{a_id}">{text}</a>'
elif link.startswith('__#'):
return f'<a name="{link.removeprefix("__#")}"></a>'
else:
return super().link(link, text, title)
def heading(self, text: str, level: int) -> str:
match = ID_RE.search(text)
text = ID_RE.sub('', text)
if match:
h_id = match[1]
else:
h_id = SPECIAL_CHARS_RE.sub('', text.lower()).replace(' ', '-')
return (
f'<h{level} id="{h_id}">'
f' {text} <small><a href="#{h_id}" class="text-decoration-none">¶</a></small>' # noqa: E501
f'</h{level}> '
)
def codespan(self, text: str) -> str:
if text.startswith('<kbd>'):
# we trust this content
return text
else:
return super().codespan(text)
def image(
self,
src: str,
alt: str = '',
title: str | None = None,
) -> str:
return (
f'<img '
f' src="{html.escape(src)}"'
f' alt="{html.escape(alt)}"'
f' class="img-fluid img-thumbnail"'
f'>'
)
def block_code(self, code: str, info: str | None = None) -> str:
copyable = False
if info is not None:
copyable_s = '#copyable'
copyable = info.endswith(copyable_s)
info, _, _ = info.partition(copyable_s)
if info == 'table':
ret = _render_table(code)
elif info == 'cmd':
ret = _render_cmd(code)
else:
ret = super().block_code(code, info)
if copyable:
return f'<div class="copyable">{ret}</div>'
else:
return ret
def md(s: str) -> markupsafe.Markup:
html = markdown_code_blocks.highlight(s, Renderer=Renderer)
# manually bless the highlighted output.
return markupsafe.Markup(html)