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Edit File: modeline.py

""" pygments.modeline ~~~~~~~~~~~~~~~~~ A simple modeline parser (based on pymodeline). :copyright: Copyright 2006-2021 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