92 lines
3.4 KiB
JavaScript
92 lines
3.4 KiB
JavaScript
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import { splitSpace, isSpace } from '../../util.js';
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const isQuoted = (s) => s && s.startsWith('"') && s.endsWith('"');
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/**
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* Splits remaining `spec.lines[].tokens.description` into `name` and `descriptions` tokens,
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* and populates the `spec.name`
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*/
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export default function nameTokenizer() {
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const typeEnd = (num, { tokens }, i) => tokens.type === '' ? num : i;
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return (spec) => {
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// look for the name in the line where {type} ends
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const { tokens } = spec.source[spec.source.reduce(typeEnd, 0)];
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const source = tokens.description.trimLeft();
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const quotedGroups = source.split('"');
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// if it starts with quoted group, assume it is a literal
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if (quotedGroups.length > 1 &&
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quotedGroups[0] === '' &&
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quotedGroups.length % 2 === 1) {
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spec.name = quotedGroups[1];
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tokens.name = `"${quotedGroups[1]}"`;
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[tokens.postName, tokens.description] = splitSpace(source.slice(tokens.name.length));
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return spec;
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}
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let brackets = 0;
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let name = '';
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let optional = false;
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let defaultValue;
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// assume name is non-space string or anything wrapped into brackets
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for (const ch of source) {
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if (brackets === 0 && isSpace(ch))
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break;
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if (ch === '[')
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brackets++;
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if (ch === ']')
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brackets--;
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name += ch;
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}
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if (brackets !== 0) {
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spec.problems.push({
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code: 'spec:name:unpaired-brackets',
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message: 'unpaired brackets',
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line: spec.source[0].number,
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critical: true,
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});
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return spec;
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}
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const nameToken = name;
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if (name[0] === '[' && name[name.length - 1] === ']') {
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optional = true;
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name = name.slice(1, -1);
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const parts = name.split('=');
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name = parts[0].trim();
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if (parts[1] !== undefined)
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defaultValue = parts.slice(1).join('=').trim();
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if (name === '') {
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spec.problems.push({
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code: 'spec:name:empty-name',
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message: 'empty name',
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line: spec.source[0].number,
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critical: true,
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});
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return spec;
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}
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if (defaultValue === '') {
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spec.problems.push({
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code: 'spec:name:empty-default',
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message: 'empty default value',
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line: spec.source[0].number,
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critical: true,
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});
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return spec;
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}
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// has "=" and is not a string, except for "=>"
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if (!isQuoted(defaultValue) && /=(?!>)/.test(defaultValue)) {
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spec.problems.push({
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code: 'spec:name:invalid-default',
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message: 'invalid default value syntax',
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line: spec.source[0].number,
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critical: true,
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});
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return spec;
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}
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}
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spec.optional = optional;
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spec.name = name;
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tokens.name = nameToken;
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if (defaultValue !== undefined)
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spec.default = defaultValue;
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[tokens.postName, tokens.description] = splitSpace(source.slice(tokens.name.length));
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return spec;
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};
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}
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