-- Copyright 2006-2015 Mitchell mitchell.att.foicica.com. See LICENSE. -- Desktop Entry LPeg lexer. local l = require('lexer') local token, word_match = l.token, l.word_match local P, R, S = lpeg.P, lpeg.R, lpeg.S local M = {_NAME = 'desktop'} -- Whitespace. local ws = token(l.WHITESPACE, l.space^1) -- Comments. local comment = token(l.COMMENT, '#' * l.nonnewline^0) -- Strings. local string = token(l.STRING, l.delimited_range('"')) -- Group headers. local group_header = l.starts_line(token(l.STRING, l.delimited_range('[]', false, true))) -- Numbers. local number = token(l.NUMBER, (l.float + l.integer)) -- Keywords. local keyword = token(l.KEYWORD, word_match{'true', 'false'}) -- Locales. local locale = token(l.CLASS, l.delimited_range('[]', false, true)) -- Keys. local key = token(l.VARIABLE, word_match{ 'Type', 'Version', 'Name', 'GenericName', 'NoDisplay', 'Comment', 'Icon', 'Hidden', 'OnlyShowIn', 'NotShowIn', 'TryExec', 'Exec', 'Exec', 'Path', 'Terminal', 'MimeType', 'Categories', 'StartupNotify', 'StartupWMClass', 'URL' }) -- Field codes. local code = l.token(l.CONSTANT, P('%') * S('fFuUdDnNickvm')) -- Identifiers. local identifier = l.token(l.IDENTIFIER, l.alpha * (l.alnum + S('_-'))^0) -- Operators. local operator = token(l.OPERATOR, S('=')) M._rules = { {'whitespace', ws}, {'keyword', keyword}, {'key', key}, {'identifier', identifier}, {'group_header', group_header}, {'locale', locale}, {'string', string}, {'comment', comment}, {'number', number}, {'code', code}, {'operator', operator}, } return M