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Diffstat (limited to 'lexlua/groovy.lua')
-rw-r--r-- | lexlua/groovy.lua | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/lexlua/groovy.lua b/lexlua/groovy.lua new file mode 100644 index 000000000..d27ea7132 --- /dev/null +++ b/lexlua/groovy.lua @@ -0,0 +1,69 @@ +-- Copyright 2006-2018 Mitchell mitchell.att.foicica.com. See License.txt. +-- Groovy LPeg lexer. + +local lexer = require('lexer') +local token, word_match = lexer.token, lexer.word_match +local P, R, S = lpeg.P, lpeg.R, lpeg.S + +local lex = lexer.new('groovy') + +-- Whitespace. +lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) + +-- Keywords. +lex:add_rule('keyword', token(lexer.KEYWORD, word_match[[ + abstract break case catch continue default do else extends final finally for + if implements instanceof native new private protected public return static + switch synchronized throw throws transient try volatile while strictfp package + import as assert def mixin property test using in + false null super this true it +]])) + +-- Functions. +lex:add_rule('function', token(lexer.FUNCTION, word_match[[ + abs any append asList asWritable call collect compareTo count div dump each + eachByte eachFile eachLine every find findAll flatten getAt getErr getIn + getOut getText grep immutable inject inspect intersect invokeMethods isCase + join leftShift minus multiply newInputStream newOutputStream newPrintWriter + newReader newWriter next plus pop power previous print println push putAt read + readBytes readLines reverse reverseEach round size sort splitEachLine step + subMap times toInteger toList tokenize upto waitForOrKill withPrintWriter + withReader withStream withWriter withWriterAppend write writeLine +]])) + +-- Types. +lex:add_rule('type', token(lexer.TYPE, word_match[[ + boolean byte char class double float int interface long short void +]])) + +-- Identifiers. +lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) + +-- Comments. +local line_comment = '//' * lexer.nonnewline_esc^0 +local block_comment = '/*' * (lexer.any - '*/')^0 * P('*/')^-1 +lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment)) + +-- Strings. +local sq_str = lexer.delimited_range("'") +local dq_str = lexer.delimited_range('"') +local triple_sq_str = "'''" * (lexer.any - "'''")^0 * P("'''")^-1 +local triple_dq_str = '"""' * (lexer.any - '"""')^0 * P('"""')^-1 +local regex_str = #P('/') * lexer.last_char_includes('=~|!<>+-*?&,:;([{') * + lexer.delimited_range('/', true) +lex:add_rule('string', token(lexer.STRING, triple_sq_str + triple_dq_str + + sq_str + dq_str) + + token(lexer.REGEX, regex_str)) + +-- Numbers. +lex:add_rule('number', token(lexer.NUMBER, lexer.float + lexer.integer)) + +-- Operators. +lex:add_rule('operator', token(lexer.OPERATOR, S('=~|!<>+-/*?&.,:;()[]{}'))) + +-- Fold points. +lex:add_fold_point(lexer.OPERATOR, '{', '}') +lex:add_fold_point(lexer.COMMENT, '/*', '*/') +lex:add_fold_point(lexer.COMMENT, '//', lexer.fold_line_comments('//')) + +return lex |