diff options
Diffstat (limited to 'lua/lexers/dart.lua')
| -rw-r--r-- | lua/lexers/dart.lua | 68 |
1 files changed, 44 insertions, 24 deletions
diff --git a/lua/lexers/dart.lua b/lua/lexers/dart.lua index 2634202..48de025 100644 --- a/lua/lexers/dart.lua +++ b/lua/lexers/dart.lua @@ -1,56 +1,76 @@ -- Copyright 2013-2025 Mitchell. See LICENSE. -- Dart LPeg lexer. -- Written by Brian Schott (@Hackerpilot on Github). +-- Migrated by Jamie Drinkell -local lexer = require('lexer') -local token, word_match = lexer.token, lexer.word_match +local lexer = lexer local P, S = lpeg.P, lpeg.S -local lex = lexer.new('dart') - --- Whitespace. -lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) +local lex = lexer.new(...) -- Keywords. -lex:add_rule('keyword', token(lexer.KEYWORD, word_match{ - 'assert', 'break', 'case', 'catch', 'class', 'const', 'continue', 'default', 'do', 'else', 'enum', - 'extends', 'false', 'final', 'finally', 'for', 'if', 'in', 'is', 'new', 'null', 'rethrow', - 'return', 'super', 'switch', 'this', 'throw', 'true', 'try', 'var', 'void', 'while', 'with' -})) - +lex:add_rule('keyword', lex:tag(lexer.KEYWORD, lex:word_match(lexer.KEYWORD))) -- Built-ins. -lex:add_rule('builtin', token(lexer.CONSTANT, word_match{ - 'abstract', 'as', 'dynamic', 'export', 'external', 'factory', 'get', 'implements', 'import', - 'library', 'operator', 'part', 'set', 'static', 'typedef' -})) +lex:add_rule('constant', lex:tag(lexer.CONSTANT_BUILTIN, lex:word_match(lexer.CONSTANT_BUILTIN))) +-- Types. +lex:add_rule('type', lex:tag(lexer.TYPE, lex:word_match(lexer.TYPE))) +-- Directives +lex:add_rule('directive', lex:tag(lexer.PREPROCESSOR, lex:word_match(lexer.PREPROCESSOR))) -- Strings. local sq_str = S('r')^-1 * lexer.range("'", true) local dq_str = S('r')^-1 * lexer.range('"', true) local tq_str = S('r')^-1 * (lexer.range("'''") + lexer.range('"""')) -lex:add_rule('string', token(lexer.STRING, tq_str + sq_str + dq_str)) +lex:add_rule('string', lex:tag(lexer.STRING, tq_str + sq_str + dq_str)) + +-- Functions. +lex:add_rule('function', lex:tag(lexer.FUNCTION, lexer.word) * #(lexer.space^0 * '(')) -- Identifiers. -lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) +lex:add_rule('identifier', lex:tag(lexer.IDENTIFIER, lexer.word)) -- Comments. local line_comment = lexer.to_eol('//', true) -local block_comment = lexer.range('/*', '*/', false, false, true) -lex:add_rule('comment', token(lexer.COMMENT, line_comment + block_comment)) +local block_comment = lexer.range('/*', '*/') +lex:add_rule('comment', lex:tag(lexer.COMMENT, line_comment + block_comment)) -- Numbers. -lex:add_rule('number', token(lexer.NUMBER, lexer.number)) +lex:add_rule('number', lex:tag(lexer.NUMBER, lexer.number)) -- Operators. -lex:add_rule('operator', token(lexer.OPERATOR, S('#?=!<>+-*$/%&|^~.,;()[]{}'))) +lex:add_rule('operator', lex:tag(lexer.OPERATOR, S('#?=!<>+-*$/%&|^~.,;()[]{}'))) -- Annotations. -lex:add_rule('annotation', token(lexer.ANNOTATION, '@' * lexer.word^1)) +lex:add_rule('annotation', lex:tag(lexer.ANNOTATION, '@' * lexer.word^1)) --- Fold points. +-- Fold points (add for most bracket pairs due to Flutter's usual formatting). lex:add_fold_point(lexer.OPERATOR, '{', '}') +lex:add_fold_point(lexer.OPERATOR, '(', ')') +lex:add_fold_point(lexer.OPERATOR, '[', ']') lex:add_fold_point(lexer.COMMENT, '/*', '*/') +lex:set_word_list(lexer.KEYWORD, { + 'abstract', 'as', 'assert', 'async', 'await', 'break', 'case', 'catch', 'class', 'continue', + 'covariant', 'default', 'do', 'else', 'enum', 'extends', 'factory', 'finally', 'for', 'get', 'if', + 'implements', 'in', 'interface', 'is', 'mixin', 'on', 'operator', 'rethrow', 'return', 'set', + 'super', 'switch', 'sync', 'this', 'throw', 'try', 'with', 'while', 'yield', -- + 'base', 'extension', 'external', 'late', 'of', 'required', 'sealed', 'when' +}) + +lex:set_word_list(lexer.PREPROCESSOR, { + 'deferred', 'export', 'hide', 'import', 'library', 'part' +}) + +lex:set_word_list(lexer.CONSTANT_BUILTIN, { + 'false', 'true', 'null' +}) + +lex:set_word_list(lexer.TYPE, { + 'const', 'dynamic', 'final', 'Function', 'new', 'static', 'typedef', 'var', 'void', 'int', + 'double', 'String', 'bool', 'List', 'Set', 'Map', 'Future', 'Stream', 'Iterable', 'Object', + 'Null', 'type' +}) + lexer.property['scintillua.comment'] = '//' return lex |