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@@ -1,96 +1,97 b'' | |||||
1 | # highlight.py - highlight extension implementation file |
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1 | # highlight.py - highlight extension implementation file | |
2 | # |
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2 | # | |
3 | # Copyright 2007-2009 Adam Hupp <adam@hupp.org> and others |
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3 | # Copyright 2007-2009 Adam Hupp <adam@hupp.org> and others | |
4 | # |
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4 | # | |
5 | # This software may be used and distributed according to the terms of the |
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5 | # This software may be used and distributed according to the terms of the | |
6 | # GNU General Public License version 2 or any later version. |
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6 | # GNU General Public License version 2 or any later version. | |
7 | # |
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7 | # | |
8 | # The original module was split in an interface and an implementation |
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8 | # The original module was split in an interface and an implementation | |
9 | # file to defer pygments loading and speedup extension setup. |
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9 | # file to defer pygments loading and speedup extension setup. | |
10 |
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10 | |||
11 | from __future__ import absolute_import |
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11 | from __future__ import absolute_import | |
12 |
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12 | |||
13 | from mercurial import demandimport |
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13 | from mercurial import demandimport | |
14 | demandimport.IGNORES.update(['pkgutil', 'pkg_resources', '__main__']) |
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14 | demandimport.IGNORES.update(['pkgutil', 'pkg_resources', '__main__']) | |
15 |
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15 | |||
16 | from mercurial import ( |
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16 | from mercurial import ( | |
17 | encoding, |
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17 | encoding, | |
18 | ) |
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18 | ) | |
19 |
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19 | |||
20 | from mercurial.utils import ( |
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20 | from mercurial.utils import ( | |
21 | stringutil, |
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21 | stringutil, | |
22 | ) |
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22 | ) | |
23 |
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23 | |||
24 | with demandimport.deactivated(): |
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24 | with demandimport.deactivated(): | |
25 | import pygments |
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25 | import pygments | |
26 | import pygments.formatters |
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26 | import pygments.formatters | |
27 | import pygments.lexers |
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27 | import pygments.lexers | |
28 | import pygments.plugin |
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28 | import pygments.plugin | |
29 | import pygments.util |
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29 | import pygments.util | |
30 |
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30 | |||
31 | for unused in pygments.plugin.find_plugin_lexers(): |
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31 | for unused in pygments.plugin.find_plugin_lexers(): | |
32 | pass |
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32 | pass | |
33 |
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33 | |||
34 | highlight = pygments.highlight |
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34 | highlight = pygments.highlight | |
35 | ClassNotFound = pygments.util.ClassNotFound |
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35 | ClassNotFound = pygments.util.ClassNotFound | |
36 | guess_lexer = pygments.lexers.guess_lexer |
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36 | guess_lexer = pygments.lexers.guess_lexer | |
37 | guess_lexer_for_filename = pygments.lexers.guess_lexer_for_filename |
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37 | guess_lexer_for_filename = pygments.lexers.guess_lexer_for_filename | |
38 | TextLexer = pygments.lexers.TextLexer |
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38 | TextLexer = pygments.lexers.TextLexer | |
39 | HtmlFormatter = pygments.formatters.HtmlFormatter |
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39 | HtmlFormatter = pygments.formatters.HtmlFormatter | |
40 |
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40 | |||
41 | SYNTAX_CSS = ('\n<link rel="stylesheet" href="{url}highlightcss" ' |
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41 | SYNTAX_CSS = ('\n<link rel="stylesheet" href="{url}highlightcss" ' | |
42 | 'type="text/css" />') |
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42 | 'type="text/css" />') | |
43 |
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43 | |||
44 | def pygmentize(field, fctx, style, tmpl, guessfilenameonly=False): |
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44 | def pygmentize(field, fctx, style, tmpl, guessfilenameonly=False): | |
45 |
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45 | |||
46 | # append a <link ...> to the syntax highlighting css |
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46 | # append a <link ...> to the syntax highlighting css | |
47 |
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47 | tmpl.load('header') | |
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48 | old_header = tmpl.cache['header'] | |||
48 | if SYNTAX_CSS not in old_header: |
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49 | if SYNTAX_CSS not in old_header: | |
49 | new_header = old_header + SYNTAX_CSS |
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50 | new_header = old_header + SYNTAX_CSS | |
50 | tmpl.cache['header'] = new_header |
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51 | tmpl.cache['header'] = new_header | |
51 |
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52 | |||
52 | text = fctx.data() |
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53 | text = fctx.data() | |
53 | if stringutil.binary(text): |
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54 | if stringutil.binary(text): | |
54 | return |
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55 | return | |
55 |
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56 | |||
56 | # str.splitlines() != unicode.splitlines() because "reasons" |
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57 | # str.splitlines() != unicode.splitlines() because "reasons" | |
57 | for c in "\x0c\x1c\x1d\x1e": |
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58 | for c in "\x0c\x1c\x1d\x1e": | |
58 | if c in text: |
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59 | if c in text: | |
59 | text = text.replace(c, '') |
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60 | text = text.replace(c, '') | |
60 |
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61 | |||
61 | # Pygments is best used with Unicode strings: |
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62 | # Pygments is best used with Unicode strings: | |
62 | # <http://pygments.org/docs/unicode/> |
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63 | # <http://pygments.org/docs/unicode/> | |
63 | text = text.decode(encoding.encoding, 'replace') |
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64 | text = text.decode(encoding.encoding, 'replace') | |
64 |
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65 | |||
65 | # To get multi-line strings right, we can't format line-by-line |
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66 | # To get multi-line strings right, we can't format line-by-line | |
66 | try: |
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67 | try: | |
67 | lexer = guess_lexer_for_filename(fctx.path(), text[:1024], |
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68 | lexer = guess_lexer_for_filename(fctx.path(), text[:1024], | |
68 | stripnl=False) |
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69 | stripnl=False) | |
69 | except (ClassNotFound, ValueError): |
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70 | except (ClassNotFound, ValueError): | |
70 | # guess_lexer will return a lexer if *any* lexer matches. There is |
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71 | # guess_lexer will return a lexer if *any* lexer matches. There is | |
71 | # no way to specify a minimum match score. This can give a high rate of |
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72 | # no way to specify a minimum match score. This can give a high rate of | |
72 | # false positives on files with an unknown filename pattern. |
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73 | # false positives on files with an unknown filename pattern. | |
73 | if guessfilenameonly: |
|
74 | if guessfilenameonly: | |
74 | return |
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75 | return | |
75 |
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76 | |||
76 | try: |
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77 | try: | |
77 | lexer = guess_lexer(text[:1024], stripnl=False) |
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78 | lexer = guess_lexer(text[:1024], stripnl=False) | |
78 | except (ClassNotFound, ValueError): |
|
79 | except (ClassNotFound, ValueError): | |
79 | # Don't highlight unknown files |
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80 | # Don't highlight unknown files | |
80 | return |
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81 | return | |
81 |
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82 | |||
82 | # Don't highlight text files |
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83 | # Don't highlight text files | |
83 | if isinstance(lexer, TextLexer): |
|
84 | if isinstance(lexer, TextLexer): | |
84 | return |
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85 | return | |
85 |
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86 | |||
86 | formatter = HtmlFormatter(nowrap=True, style=style) |
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87 | formatter = HtmlFormatter(nowrap=True, style=style) | |
87 |
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88 | |||
88 | colorized = highlight(text, lexer, formatter) |
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89 | colorized = highlight(text, lexer, formatter) | |
89 | coloriter = (s.encode(encoding.encoding, 'replace') |
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90 | coloriter = (s.encode(encoding.encoding, 'replace') | |
90 | for s in colorized.splitlines()) |
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91 | for s in colorized.splitlines()) | |
91 |
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92 | |||
92 | tmpl._filters['colorize'] = lambda x: next(coloriter) |
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93 | tmpl._filters['colorize'] = lambda x: next(coloriter) | |
93 |
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94 | |||
94 | oldl = tmpl.cache[field] |
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95 | oldl = tmpl.cache[field] | |
95 | newl = oldl.replace('line|escape', 'line|colorize') |
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96 | newl = oldl.replace('line|escape', 'line|colorize') | |
96 | tmpl.cache[field] = newl |
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97 | tmpl.cache[field] = newl |
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