/usr/share/vis/lexers/django.lua is in vis 0.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | -- Copyright 2006-2017 Mitchell mitchell.att.foicica.com. See LICENSE.
-- Django LPeg lexer.
local l = require('lexer')
local token, word_match = l.token, l.word_match
local P, R, S, V = lpeg.P, lpeg.R, lpeg.S, lpeg.V
local M = {_NAME = 'django'}
-- Whitespace.
local ws = token(l.WHITESPACE, l.space^1)
-- Comments.
local comment = token(l.COMMENT, '{#' * (l.any - l.newline - '#}')^0 *
P('#}')^-1)
-- Strings.
local string = token(l.STRING, l.delimited_range('"', false, true))
-- Keywords.
local keyword = token(l.KEYWORD, word_match{
'as', 'block', 'blocktrans', 'by', 'endblock', 'endblocktrans', 'comment',
'endcomment', 'cycle', 'date', 'debug', 'else', 'extends', 'filter',
'endfilter', 'firstof', 'for', 'endfor', 'if', 'endif', 'ifchanged',
'endifchanged', 'ifnotequal', 'endifnotequal', 'in', 'load', 'not', 'now',
'or', 'parsed', 'regroup', 'ssi', 'trans', 'with', 'widthratio'
})
-- Functions.
local func = token(l.FUNCTION, word_match{
'add', 'addslashes', 'capfirst', 'center', 'cut', 'date', 'default',
'dictsort', 'dictsortreversed', 'divisibleby', 'escape', 'filesizeformat',
'first', 'fix_ampersands', 'floatformat', 'get_digit', 'join', 'length',
'length_is', 'linebreaks', 'linebreaksbr', 'linenumbers', 'ljust', 'lower',
'make_list', 'phone2numeric', 'pluralize', 'pprint', 'random', 'removetags',
'rjust', 'slice', 'slugify', 'stringformat', 'striptags', 'time', 'timesince',
'title', 'truncatewords', 'unordered_list', 'upper', 'urlencode', 'urlize',
'urlizetrunc', 'wordcount', 'wordwrap', 'yesno',
})
-- Identifiers.
local identifier = token(l.IDENTIFIER, l.word)
-- Operators.
local operator = token(l.OPERATOR, S(':,.|'))
M._rules = {
{'whitespace', ws},
{'keyword', keyword},
{'function', func},
{'identifier', identifier},
{'string', string},
{'comment', comment},
{'operator', operator},
}
-- Embedded in HTML.
local html = l.load('html')
-- Embedded Django.
local django_start_rule = token('django_tag', '{' * S('{%'))
local django_end_rule = token('django_tag', S('%}') * '}')
l.embed_lexer(html, M, django_start_rule, django_end_rule)
-- Modify HTML patterns to embed Django.
html._RULES['comment'] = html._RULES['comment'] + comment
M._tokenstyles = {
django_tag = l.STYLE_EMBEDDED
}
local _foldsymbols = html._foldsymbols
_foldsymbols._patterns[#_foldsymbols._patterns + 1] = '{[%%{]'
_foldsymbols._patterns[#_foldsymbols._patterns + 1] = '[%%}]}'
_foldsymbols.django_tag = {['{{'] = 1, ['}}'] = -1, ['{%'] = 1, ['%}'] = -1}
M._foldsymbols = _foldsymbols
return M
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