100 lines
2.4 KiB
TypeScript
100 lines
2.4 KiB
TypeScript
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import { Block, Tokens, Spec, Line } from './primitives.js';
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export function isSpace(source: string): boolean {
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return /^\s+$/.test(source);
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}
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export function hasCR(source: string): boolean {
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return /\r$/.test(source);
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}
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export function splitCR(source: string): [string, string] {
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const matches = source.match(/\r+$/);
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return matches == null
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? ['', source]
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: [source.slice(-matches[0].length), source.slice(0, -matches[0].length)];
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}
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export function splitSpace(source: string): [string, string] {
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const matches = source.match(/^\s+/);
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return matches == null
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? ['', source]
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: [source.slice(0, matches[0].length), source.slice(matches[0].length)];
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}
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export function splitLines(source: string): string[] {
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return source.split(/\n/);
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}
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export function seedBlock(block: Partial<Block> = {}): Block {
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return {
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description: '',
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tags: [],
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source: [],
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problems: [],
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...block,
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};
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}
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export function seedSpec(spec: Partial<Spec> = {}): Spec {
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return {
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tag: '',
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name: '',
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type: '',
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optional: false,
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description: '',
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problems: [],
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source: [],
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...spec,
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};
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}
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export function seedTokens(tokens: Partial<Tokens> = {}): Tokens {
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return {
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start: '',
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delimiter: '',
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postDelimiter: '',
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tag: '',
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postTag: '',
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name: '',
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postName: '',
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type: '',
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postType: '',
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description: '',
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end: '',
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lineEnd: '',
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...tokens,
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};
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}
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/**
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* Assures Block.tags[].source contains references to the Block.source items,
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* using Block.source as a source of truth. This is a counterpart of rewireSpecs
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* @param block parsed coments block
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*/
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export function rewireSource(block: Block): Block {
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const source = block.source.reduce(
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(acc, line) => acc.set(line.number, line),
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new Map<number, Line>()
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);
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for (const spec of block.tags) {
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spec.source = spec.source.map((line) => source.get(line.number));
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}
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return block;
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}
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/**
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* Assures Block.source contains references to the Block.tags[].source items,
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* using Block.tags[].source as a source of truth. This is a counterpart of rewireSource
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* @param block parsed coments block
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*/
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export function rewireSpecs(block: Block): Block {
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const source = block.tags.reduce(
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(acc, spec) =>
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spec.source.reduce((acc, line) => acc.set(line.number, line), acc),
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new Map<number, Line>()
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);
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block.source = block.source.map((line) => source.get(line.number) || line);
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return block;
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}
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