create.js•1.51 kB
import { tokenize } from '../tokenizer/index.js';
import { createParser } from '../parser/create.js';
import { createGenerator } from '../generator/create.js';
import { createConvertor } from '../convertor/create.js';
import { createWalker } from '../walker/create.js';
import { Lexer } from '../lexer/Lexer.js';
import mix from './config/mix.js';
function createSyntax(config) {
const parse = createParser(config);
const walk = createWalker(config);
const generate = createGenerator(config);
const { fromPlainObject, toPlainObject } = createConvertor(walk);
const syntax = {
lexer: null,
createLexer: config => new Lexer(config, syntax, syntax.lexer.structure),
tokenize,
parse,
generate,
walk,
find: walk.find,
findLast: walk.findLast,
findAll: walk.findAll,
fromPlainObject,
toPlainObject,
fork(extension) {
const base = mix({}, config); // copy of config
return createSyntax(
typeof extension === 'function'
? extension(base, Object.assign)
: mix(base, extension)
);
}
};
syntax.lexer = new Lexer({
generic: true,
units: config.units,
types: config.types,
atrules: config.atrules,
properties: config.properties,
node: config.node
}, syntax);
return syntax;
};
export default config => createSyntax(mix({}, config));