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Diffstat (limited to 'lexers/rstats.lua')
| -rw-r--r-- | lexers/rstats.lua | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/lexers/rstats.lua b/lexers/rstats.lua deleted file mode 100644 index 19e43e8..0000000 --- a/lexers/rstats.lua +++ /dev/null @@ -1,53 +0,0 @@ --- Copyright 2006-2016 Mitchell mitchell.att.foicica.com. See LICENSE. --- R 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 = 'rstats'} - --- Whitespace. -local ws = token(l.WHITESPACE, l.space^1) - --- Comments. -local comment = token(l.COMMENT, '#' * l.nonnewline^0) - --- Strings. -local sq_str = l.delimited_range("'", true) -local dq_str = l.delimited_range('"', true) -local string = token(l.STRING, sq_str + dq_str) - --- Numbers. -local number = token(l.NUMBER, (l.float + l.integer) * P('i')^-1) - --- Keywords. -local keyword = token(l.KEYWORD, word_match{ - 'break', 'else', 'for', 'if', 'in', 'next', 'repeat', 'return', 'switch', - 'try', 'while', 'Inf', 'NA', 'NaN', 'NULL', 'FALSE', 'TRUE' -}) - --- Types. -local type = token(l.TYPE, word_match{ - 'array', 'character', 'complex', 'data.frame', 'double', 'factor', 'function', - 'integer', 'list', 'logical', 'matrix', 'numeric', 'vector' -}) - --- Identifiers. -local identifier = token(l.IDENTIFIER, l.word) - --- Operators. -local operator = token(l.OPERATOR, S('<->+*/^=.,:;|$()[]{}')) - -M._rules = { - {'whitespace', ws}, - {'keyword', keyword}, - {'type', type}, - {'identifier', identifier}, - {'string', string}, - {'comment', comment}, - {'number', number}, - {'operator', operator}, -} - -return M |
