powershell.lua (2057B)
- -- Copyright 2015-2024 Mitchell. See LICENSE.
- -- PowerShell LPeg lexer.
- -- Contributed by Jeff Stone.
- local lexer = require('lexer')
- local token, word_match = lexer.token, lexer.word_match
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new('powershell')
- -- Whitespace.
- lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
- -- Comments.
- lex:add_rule('comment', token(lexer.COMMENT, lexer.to_eol('#')))
- -- Keywords.
- lex:add_rule('keyword', token(lexer.KEYWORD, word_match({
- 'Begin', 'Break', 'Continue', 'Do', 'Else', 'End', 'Exit', 'For', 'ForEach', 'ForEach-Object',
- 'Get-Date', 'Get-Random', 'If', 'Param', 'Pause', 'Powershell', 'Process', 'Read-Host', 'Return',
- 'Switch', 'While', 'Write-Host'
- }, true)))
- -- Comparison Operators.
- lex:add_rule('comparison', token(lexer.KEYWORD, '-' * word_match({
- 'and', 'as', 'band', 'bor', 'contains', 'eq', 'ge', 'gt', 'is', 'isnot', 'le', 'like', 'lt',
- 'match', 'ne', 'nomatch', 'not', 'notcontains', 'notlike', 'or', 'replace'
- }, true)))
- -- Parameters.
- lex:add_rule('parameter', token(lexer.KEYWORD, '-' *
- word_match('Confirm Debug ErrorAction ErrorVariable OutBuffer OutVariable Verbose WhatIf', true)))
- -- Properties.
- lex:add_rule('property', token(lexer.KEYWORD, '.' *
- word_match('day dayofweek dayofyear hour millisecond minute month second timeofday year', true)))
- -- Types.
- lex:add_rule('type', token(lexer.KEYWORD, '[' * word_match({
- 'array', 'boolean', 'byte', 'char', 'datetime', 'decimal', 'double', 'hashtable', 'int', 'long',
- 'single', 'string', 'xml'
- }, true) * ']'))
- -- Variables.
- lex:add_rule('variable', token(lexer.VARIABLE,
- '$' * (lexer.digit^1 + lexer.word + lexer.range('{', '}', true))))
- -- Strings.
- lex:add_rule('string', token(lexer.STRING, lexer.range('"', true)))
- -- Numbers.
- lex:add_rule('number', token(lexer.NUMBER, lexer.number))
- -- Operators.
- lex:add_rule('operator', token(lexer.OPERATOR, S('=!<>+-/*^&|~.,:;?()[]{}%`')))
- -- Fold points.
- lex:add_fold_point(lexer.OPERATOR, '{', '}')
- lexer.property['scintillua.comment'] = '#'
- return lex