New implementation of v3, should be more foolproof with simpler schemas.
This commit is contained in:
Joshua Bemenderfer
parent
14cc34f32e
commit
e256dd7397
@ -1,76 +1,77 @@
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import { useDocument } from '@terrace/core'
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import { createStringReader } from '@terrace/core/readers/js-string'
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export async function parse(lines, schema) {
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export async function parse(lines, rootSchema) {
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const doc = useDocument(createStringReader(lines))
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function createScope(line, matchers) {
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return {
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block: [line, []],
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handlers: [],
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matchers: matchers
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const levelTracker = []
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function createScope(level, line, schema = null) {
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levelTracker.length = level
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const entry = levelTracker[level] = {}
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entry.scope = [line, []]
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if (schema) {
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entry.schemas = Object.values(schema),
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entry.matchers = Object.keys(schema),
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entry.counts = Object.values(schema).map(e => e.count)
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}
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return entry.scope
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}
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createScope(0, 'root', rootSchema)
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// Simpler parsing logic, don't need to worry about matcherList or the likes.
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if (!rootSchema) {
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while (true) {
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// If doc.next() returns true we've ended the document.
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if (await doc.next()) break;
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const level = doc.level()
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// Determine parent for this scope.
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const parent = levelTracker[level].scope
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// If there's no parent, skip this line.
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if (!parent) continue
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// Create new scope
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const scope = createScope(level + 1, doc.line())
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// Add current scope to parent.
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parent[1].push(scope)
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}
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// Full parsing logic
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} else {
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while (true) {
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// If doc.next() returns true we've ended the document.
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if (await doc.next()) break;
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const level = doc.level()
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if (!levelTracker[level]) continue
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// Determine parent for this scope.
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const parent = levelTracker[level].scope
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const schemas = levelTracker[level].schemas
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const matchers = levelTracker[level].matchers
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const counts = levelTracker[level].counts
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// Match the head value, or '?' for unspecified lines.
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const matchIndex = matchers.findIndex(entry => entry === doc.head() || entry === '?')
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// Handle trailing blocks of text. TODO: Proper trailing.
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if (matchIndex === -1 && matchers.includes('? literal')) {
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parent[1].push(...(await doc.content(level)).map(e => [e]))
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continue
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} else if (matchIndex === -1) continue
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// Return if the match has already been "used up"
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if (counts[matchIndex] === 0) continue
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// "use up" one more match
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counts[matchIndex] -= 1
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const scopeSchema = schemas[matchIndex]
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// Create new scope
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const scope = createScope(level + 1, doc.line(), scopeSchema?.children)
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parent[1].push(scope)
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}
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}
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const scopes = [createScope('root', {
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title ({ addHandler }) {
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addHandler(scope => [scope[0].split(' ')[0], scope[0].split(' ').slice(1).join(' ')])
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},
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options ({ addMatcher }) {
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addMatcher({
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parameter1({ addHandler }) {
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addHandler(scope => [scope[0].split(' ')[0], +scope[0].split(' ').slice(1).join(' ')])
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}
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})
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}
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})]
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while (true) {
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// If doc.next() returns true we've ended the document.
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if (await doc.next()) break;
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const level = doc.level() + 1
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// Trigger macros for closed scopes.
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for (let i = scopes.length - 1; i >= level; --i) {
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const scope = scopes[i]
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const parent = scopes[i - 1]
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// Remove empty arrays from scopes without children.
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if (scope.block[1] && !scope.block[1].length) scope.block.length = 1
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// Postprocess scope with relevant macros.
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scope.block = scope.handlers.reduce((block, handler) => {
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return handler(block)
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}, [...scope.block])
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// Add to parent block.
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parent.block[1].push(scope.block)
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}
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// Reset scope length to avoid dangling scopes.
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scopes.length = level
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// Define current scope
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const scope = scopes[level] = createScope(doc.line(), {})
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// Determine parent for this scope.
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const parent = scopes[level - 1]
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// Add a postprocess handler for this scope.
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// Ie. When we leave the scope, rewrite it using this handler.
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function addHandler(handler) {
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scope.handlers.push(handler)
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}
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// Add matchers for this scope's children.
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function addMatcher(definition) {
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scope.matchers = definition
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}
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// Run matching matchers for this scope.
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if (parent.matchers[doc.head()]) {
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parent.matchers[doc.head()]({ addHandler, addMatcher })
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}
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}
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return scopes[0].block
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}
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return levelTracker[0].scope
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}
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@ -1,10 +1,6 @@
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import { parse } from './core.js'
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const schema = {
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}
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const lines = [
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const linesFull = [
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`title Example`,
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`options`,
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` parameter1 30`,
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@ -12,11 +8,13 @@ const lines = [
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`options`,
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` parameter1 0`,
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` parameter2 Esse incididunt et est adipisicing eiusmod aliqua enim ea aliqua id enim.`,
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` deep Enim fugiat do in est commodo culpa dolore.`,
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`subsection`,
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` position 1`,
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` Ea dolore in aliquip fugiat anim adipisicing amet aute tempor et deserunt est duis sint.`,
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`subsection 2`,
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` position 2`,
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` `,
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` Aute deserunt incididunt ad in sint adipisicing est officia velit pariatur ipsum deserunt quis nulla.`,
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` Ea dolore in aliquip fugiat anim adipisicing amet aute tempor et deserunt est duis sint.`,
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`list`,
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@ -36,8 +34,75 @@ const lines = [
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` 2`
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]
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const linesSchema = [
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`name @terrace/core`,
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`version 0.0.1`,
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`randomthing test`,
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`license MIT`,
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`license GPL`,
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`exports`,
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` .`,
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` import ./dist/index.js`,
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` require ./dist/index.cjs`,
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` ./parser`,
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` import ./dist/parser.js`,
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` require ./dist/parser.cjs`,
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``,
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` ./document`,
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` import ./dist/document.js`,
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` require ./dist/document.cjs`,
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``,
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` ./readers/node-readline`,
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` import ./dist/readers/node-readline.js`,
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` require ./dist/readers/node-readline.cjs`,
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``,
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` ./readers/js-string`,
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` import ./dist/readers/js-string.js`,
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` require ./dist/readers/js-string.cjs`,
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`scripts`,
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` test vitest ./src`,
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` build vite build`,
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`devDependencies`,
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` vite ^3.2.3`,
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` vitest ^0.24.5`,
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``,
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`author`,
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` name Joshua Bemenderfer`,
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` email josh@thederf.com`,
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` `,
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` Further comments below. As I will now demonstrate, there is no simple`,
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` way of dealing with this problem.`,
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]
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const schema = {
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"name": {count: 1},
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"version": {count: 1},
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"license": {count: 1},
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"exports": {count: 1, children: {
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"?": {count: -1, children: {
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"import": {count: 1},
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"require": {count: 1}
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}}
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}},
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"scripts": {count: 1, children: {
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"?": { count: -1 }
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}},
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"devDependencies": {count: 1, children: {
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"?": { count: -1 }
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}},
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"author": { count: 1, children: {
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"name": { count: 1 },
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"email": { count: 1 },
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"? literal": { count: -1 }
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}}
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}
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async function main() {
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console.dir(await parse(lines, schema), { depth: null })
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const resultFull = await parse(linesFull)
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// console.dir(resultFull, { depth: null })
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const resultSchema = await parse(linesSchema, schema)
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console.dir(resultSchema, { depth: null })
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}
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main()
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3
packages/js/core/dist/document.cjs
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3
packages/js/core/dist/document.cjs
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@ -1,2 +1 @@
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"use strict";Object.defineProperties(exports,{__esModule:{value:!0},[Symbol.toStringTag]:{value:"Module"}});const s=require("./parser.cjs");function a(l,u=" "){let r=s.createLineData(null,u);const t={ended:!1,clone(){return a(l.clone(),u)},async next(){if(r.line=await l.next(),r.line===null)return!0;s.parseLine(r)},current(){return t},line(){var e;return(e=r.line)==null?void 0:e.slice(r.offsetHead)},head(){var e;return(e=r.line)==null?void 0:e.slice(r.offsetHead,r.offsetTail)},tail(){var e;return(e=r.line)==null?void 0:e.slice(r.offsetTail)},level(){return r.level},async content(e=-1,n=[]){var i;return e===-1&&(e=r.level+1),await t.next()||r.level<e?n.join(`
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`):(n.push(((i=r.line)==null?void 0:i.slice(e))||""),t.content(e,n))},async seek(e,n=-1){return n===-1&&(n=r.level),await t.next()?!1:t.head()===e?t:r.level<n?!1:t.seek(e,n)}};return t}exports.useDocument=a;
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"use strict";Object.defineProperties(exports,{__esModule:{value:!0},[Symbol.toStringTag]:{value:"Module"}});const s=require("./parser.cjs");function a(l,u=" "){let r=s.createLineData(null,u);const t={ended:!1,clone(){return a(l.clone(),u)},async next(){if(r.line=await l.next(),r.line===null)return!0;s.parseLine(r)},current(){return t},line(){var e;return(e=r.line)==null?void 0:e.slice(r.offsetHead)},head(){var e;return(e=r.line)==null?void 0:e.slice(r.offsetHead,r.offsetTail)},tail(){var e;return(e=r.line)==null?void 0:e.slice(r.offsetTail)},level(){return r.level},async content(e=-1,n=[]){var i;return e===-1&&(e=r.level+1),await t.next()||r.level<e?n:(n.push(((i=r.line)==null?void 0:i.slice(e))||""),t.content(e,n))},async seek(e,n=-1){return n===-1&&(n=r.level),await t.next()?!1:t.head()===e?t:r.level<n?!1:t.seek(e,n)}};return t}exports.useDocument=a;
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27
packages/js/core/dist/document.js
vendored
27
packages/js/core/dist/document.js
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@ -1,41 +1,40 @@
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import { parseLine as f, createLineData as s } from "./parser.js";
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function d(i, l = " ") {
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let n = s(null, l);
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function d(l, i = " ") {
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let r = s(null, i);
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const t = {
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ended: !1,
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clone() {
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return d(i.clone(), l);
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return d(l.clone(), i);
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},
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async next() {
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if (n.line = await i.next(), n.line === null)
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if (r.line = await l.next(), r.line === null)
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return !0;
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f(n);
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f(r);
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},
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current() {
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return t;
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},
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line() {
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var e;
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return (e = n.line) == null ? void 0 : e.slice(n.offsetHead);
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return (e = r.line) == null ? void 0 : e.slice(r.offsetHead);
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},
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head() {
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var e;
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return (e = n.line) == null ? void 0 : e.slice(n.offsetHead, n.offsetTail);
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return (e = r.line) == null ? void 0 : e.slice(r.offsetHead, r.offsetTail);
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},
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tail() {
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var e;
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return (e = n.line) == null ? void 0 : e.slice(n.offsetTail);
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return (e = r.line) == null ? void 0 : e.slice(r.offsetTail);
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},
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level() {
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return n.level;
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return r.level;
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},
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async content(e = -1, r = []) {
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async content(e = -1, n = []) {
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var u;
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return e === -1 && (e = n.level + 1), await t.next() || n.level < e ? r.join(`
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`) : (r.push(((u = n.line) == null ? void 0 : u.slice(e)) || ""), t.content(e, r));
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return e === -1 && (e = r.level + 1), await t.next() || r.level < e ? n : (n.push(((u = r.line) == null ? void 0 : u.slice(e)) || ""), t.content(e, n));
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},
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async seek(e, r = -1) {
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return r === -1 && (r = n.level), await t.next() ? !1 : t.head() === e ? t : n.level < r ? !1 : t.seek(e, r);
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async seek(e, n = -1) {
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return n === -1 && (n = r.level), await t.next() ? !1 : t.head() === e ? t : r.level < n ? !1 : t.seek(e, n);
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}
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};
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return t;
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@ -49,13 +49,13 @@ export function useDocument (reader: Reader, indent: string = ' '): Document {
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return lineData.level
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},
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async content (contentLevel = -1, lines: string[] = []): Promise<string> {
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async content (contentLevel = -1, lines: string[] = []): Promise<Array<string>> {
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if (contentLevel === -1) contentLevel = lineData.level + 1
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const ended = await document.next()
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if (ended) return lines.join('\n')
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if (ended) return lines
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if (lineData.level < contentLevel) return lines.join('\n')
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if (lineData.level < contentLevel) return lines
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lines.push(lineData.line?.slice(contentLevel) || '')
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return document.content(contentLevel, lines)
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