You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
986 B
Python
44 lines
986 B
Python
2 years ago
|
"""
|
||
|
|
pygments.modeline
|
||
|
|
~~~~~~~~~~~~~~~~~
|
||
|
|
|
||
|
|
A simple modeline parser (based on pymodeline).
|
||
|
|
|
||
|
|
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
|
||
|
|
:license: BSD, see LICENSE for details.
|
||
|
|
"""
|
||
|
|
|
||
|
|
import re
|
||
|
|
|
||
|
|
__all__ = ['get_filetype_from_buffer']
|
||
|
|
|
||
|
|
|
||
|
|
modeline_re = re.compile(r'''
|
||
|
|
(?: vi | vim | ex ) (?: [<=>]? \d* )? :
|
||
|
|
.* (?: ft | filetype | syn | syntax ) = ( [^:\s]+ )
|
||
|
|
''', re.VERBOSE)
|
||
|
|
|
||
|
|
|
||
|
|
def get_filetype_from_line(l):
|
||
|
|
m = modeline_re.search(l)
|
||
|
|
if m:
|
||
|
|
return m.group(1)
|
||
|
|
|
||
|
|
|
||
|
|
def get_filetype_from_buffer(buf, max_lines=5):
|
||
|
|
"""
|
||
|
|
Scan the buffer for modelines and return filetype if one is found.
|
||
|
|
"""
|
||
|
|
lines = buf.splitlines()
|
||
|
|
for l in lines[-1:-max_lines-1:-1]:
|
||
|
|
ret = get_filetype_from_line(l)
|
||
|
|
if ret:
|
||
|
|
return ret
|
||
|
|
for i in range(max_lines, -1, -1):
|
||
|
|
if i < len(lines):
|
||
|
|
ret = get_filetype_from_line(lines[i])
|
||
|
|
if ret:
|
||
|
|
return ret
|
||
|
|
|
||
|
|
return None
|