pkgbuild.lua (2904B)
- -- Copyright 2006-2024 gwash. See LICENSE.
- -- Archlinux PKGBUILD LPeg lexer.
- local lexer = require('lexer')
- local token, word_match = lexer.token, lexer.word_match
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new('pkgbuild')
- -- Whitespace.
- lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1))
- -- Comments.
- lex:add_rule('comment', token(lexer.COMMENT, lexer.to_eol('#')))
- -- Strings.
- local sq_str = lexer.range("'", false, false)
- local dq_str = lexer.range('"')
- local ex_str = lexer.range('`')
- local heredoc = '<<' * P(function(input, index)
- local s, e, _, delimiter = input:find('(["\']?)([%a_][%w_]*)%1[\n\r\f;]+', index)
- if s == index and delimiter then
- e = select(2, input:find('[\n\r\f]+' .. delimiter, e))
- return e and e + 1 or #input + 1
- end
- end)
- lex:add_rule('string', token(lexer.STRING, sq_str + dq_str + ex_str + heredoc))
- -- Numbers.
- lex:add_rule('number', token(lexer.NUMBER, lexer.number))
- -- Keywords.
- lex:add_rule('keyword', token(lexer.KEYWORD, word_match{
- 'patch', 'cd', 'make', 'patch', 'mkdir', 'cp', 'sed', 'install', 'rm', 'if', 'then', 'elif',
- 'else', 'fi', 'case', 'in', 'esac', 'while', 'for', 'do', 'done', 'continue', 'local', 'return',
- 'git', 'svn', 'co', 'clone', 'gconf-merge-schema', 'msg', 'echo', 'ln',
- -- Operators.
- '-a', '-b', '-c', '-d', '-e', '-f', '-g', '-h', '-k', '-p', '-r', '-s', '-t', '-u', '-w', '-x',
- '-O', '-G', '-L', '-S', '-N', '-nt', '-ot', '-ef', '-o', '-z', '-n', '-eq', '-ne', '-lt', '-le',
- '-gt', '-ge', '-Np', '-i'
- }))
- -- Functions.
- lex:add_rule('function',
- token(lexer.FUNCTION, word_match('build check package pkgver prepare') * '()'))
- -- Constants.
- lex:add_rule('constant', token(lexer.CONSTANT, word_match{
- -- We do *not* list pkgver srcdir and startdir here.
- -- These are defined by makepkg but user should not alter them.
- 'arch', 'backup', 'changelog', 'checkdepends', 'conflicts', 'depends', 'epoch', 'groups',
- 'install', 'license', 'makedepends', 'md5sums', 'noextract', 'optdepends', 'options', 'pkgbase',
- 'pkgdesc', 'pkgname', 'pkgrel', 'pkgver', 'provides', 'replaces', 'sha1sums', 'sha256sums',
- 'sha384sums', 'sha512sums', 'source', 'url', 'validpgpkeys'
- }))
- -- Identifiers.
- lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word))
- -- Variables.
- local symbol = S('!#?*@$')
- local parens = lexer.range('(', ')', true)
- local brackets = lexer.range('[', ']', true)
- local braces = lexer.range('{', '}', true)
- local backticks = lexer.range('`', true, false)
- local number = lexer.dec_num
- lex:add_rule('variable', token(lexer.VARIABLE, '$' *
- (symbol + parens + brackets + braces + backticks + number + lexer.word)))
- -- Operators.
- lex:add_rule('operator', token(lexer.OPERATOR, S('=!<>+-/*^~.,:;?()[]{}')))
- -- Fold points.
- lex:add_fold_point(lexer.OPERATOR, '(', ')')
- lex:add_fold_point(lexer.OPERATOR, '{', '}')
- lexer.property['scintillua.comment'] = '#'
- return lex