Mercurial Repositories > eric / file comparison
comparison: ThirdParty/Pygments/pygments/modeline.py
ThirdParty/Pygments/pygments/modeline.py
- changeset 4172
- 4f20dba37ab6
- child 4697
- c2e9bf425554
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| 4170:8bc578136279 | 4172:4f20dba37ab6 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 """ | |
| 3 pygments.modeline | |
| 4 ~~~~~~~~~~~~~~~~~ | |
| 5 | |
| 6 A simple modeline parser (based on pymodeline). | |
| 7 | |
| 8 :copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS. | |
| 9 :license: BSD, see LICENSE for details. | |
| 10 """ | |
| 11 | |
| 12 import re | |
| 13 | |
| 14 __all__ = ['get_filetype_from_buffer'] | |
| 15 | |
| 16 modeline_re = re.compile(r''' | |
| 17 (?: vi | vim | ex ) (?: [<=>]? \d* )? : | |
| 18 .* (?: ft | filetype | syn | syntax ) = ( [^:\s]+ ) | |
| 19 ''', re.VERBOSE) | |
| 20 | |
| 21 def get_filetype_from_line(l): | |
| 22 m = modeline_re.search(l) | |
| 23 if m: | |
| 24 return m.group(1) | |
| 25 | |
| 26 def get_filetype_from_buffer(buf, max_lines=5): | |
| 27 """ | |
| 28 Scan the buffer for modelines and return filetype if one is found. | |
| 29 """ | |
| 30 lines = buf.splitlines() | |
| 31 for l in lines[-1:-max_lines-1:-1]: | |
| 32 ret = get_filetype_from_line(l) | |
| 33 if ret: | |
| 34 return ret | |
| 35 for l in lines[max_lines:0:-1]: | |
| 36 ret = get_filetype_from_line(l) | |
| 37 if ret: | |
| 38 return ret | |
| 39 | |
| 40 return None |
