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Diffstat (limited to 'lexers/faust.lua')
| -rw-r--r-- | lexers/faust.lua | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/lexers/faust.lua b/lexers/faust.lua deleted file mode 100644 index 34c925e..0000000 --- a/lexers/faust.lua +++ /dev/null @@ -1,58 +0,0 @@ --- Copyright 2015-2016 David B. Lamkins <david@lamkins.net>. See LICENSE. --- Faust LPeg lexer, see http://faust.grame.fr/ - -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 = 'faust'} - --- Whitespace. -local ws = token(l.WHITESPACE, l.space^1) - --- Comments. -local line_comment = '//' * l.nonnewline^0 -local block_comment = '/*' * (l.any - '*/')^0 * P('*/')^-1 -local comment = token(l.COMMENT, line_comment + block_comment) - --- Strings. -local string = token(l.STRING, l.delimited_range('"', true)) - --- Numbers. -local int = R('09')^1 -local rad = P('.') -local exp = (P('e') * S('+-')^-1 * int)^-1 -local flt = int * (rad * int)^-1 * exp + int^-1 * rad * int * exp -local number = token(l.NUMBER, flt + int) - --- Keywords. -local keyword = token(l.KEYWORD, word_match{ - 'declare', 'import', 'mdoctags', 'dependencies', 'distributed', 'inputs', - 'outputs', 'par', 'seq', 'sum', 'prod', 'xor', 'with', 'environment', - 'library', 'component', 'ffunction', 'fvariable', 'fconstant', 'int', 'float', - 'case', 'waveform', 'h:', 'v:', 't:' -}) - --- Identifiers. -local identifier = token(l.IDENTIFIER, l.word) - --- Operators. -local punct = S('+-/*%<>~!=^&|?~:;,.()[]{}@#$`\\\'') -local operator = token(l.OPERATOR, punct) - --- Pragmas. -local mdoc = P('<mdoc>') * (l.any - P('</mdoc>'))^0 * P('</mdoc>') -local pragma = token(l.PREPROCESSOR, mdoc) - -M._rules = { - {'whitespace', ws}, - {'comment', comment}, - {'pragma', pragma}, - {'keyword', keyword}, - {'number', number}, - {'operator', operator}, - {'identifier', identifier}, - {'string', string}, -} - -return M |
