Mercurial Repositories > eric / file comparison
comparison: eric6/ThirdParty/Pygments/pygments/modeline.py
eric6/ThirdParty/Pygments/pygments/modeline.py
- changeset 8258
- 82b608e352ec
- parent 8257
- 28146736bbfc
- child 8259
- 2bbec88047dd
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| 8257:28146736bbfc | 8258:82b608e352ec |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 """ | |
| 3 pygments.modeline | |
| 4 ~~~~~~~~~~~~~~~~~ | |
| 5 | |
| 6 A simple modeline parser (based on pymodeline). | |
| 7 | |
| 8 :copyright: Copyright 2006-2021 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 | |
| 17 modeline_re = re.compile(r''' | |
| 18 (?: vi | vim | ex ) (?: [<=>]? \d* )? : | |
| 19 .* (?: ft | filetype | syn | syntax ) = ( [^:\s]+ ) | |
| 20 ''', re.VERBOSE) | |
| 21 | |
| 22 | |
| 23 def get_filetype_from_line(l): | |
| 24 m = modeline_re.search(l) | |
| 25 if m: | |
| 26 return m.group(1) | |
| 27 | |
| 28 | |
| 29 def get_filetype_from_buffer(buf, max_lines=5): | |
| 30 """ | |
| 31 Scan the buffer for modelines and return filetype if one is found. | |
| 32 """ | |
| 33 lines = buf.splitlines() | |
| 34 for l in lines[-1:-max_lines-1:-1]: | |
| 35 ret = get_filetype_from_line(l) | |
| 36 if ret: | |
| 37 return ret | |
| 38 for i in range(max_lines, -1, -1): | |
| 39 if i < len(lines): | |
| 40 ret = get_filetype_from_line(lines[i]) | |
| 41 if ret: | |
| 42 return ret | |
| 43 | |
| 44 return None |
