c9284343e8
* Adding {#if} test case
* Expression evaluation based on ses Compartments
* New Compartment usage
* split template filling tests
* passing tests except the if one
* in progress
* Refactoring: extracting extractBlockContent method
* test if qui passe
* Move tree preparation to its own function so it's done ony once
* if in a single text node works
750 lines
23 KiB
JavaScript
750 lines
23 KiB
JavaScript
import { ZipReader, ZipWriter, BlobReader, BlobWriter, TextReader, Uint8ArrayReader, TextWriter, Uint8ArrayWriter } from '@zip.js/zip.js';
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import {traverse, parseXML, serializeToString, Node} from '../DOMUtils.js'
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import {makeManifestFile, getManifestFileData} from './manifest.js';
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import 'ses'
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lockdown();
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/** @import {Reader, ZipWriterAddDataOptions} from '@zip.js/zip.js' */
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/** @import {ODFManifest} from './manifest.js' */
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/** @typedef {ArrayBuffer} ODTFile */
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const ODTMimetype = 'application/vnd.oasis.opendocument.text'
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// For a given string, split it into fixed parts and parts to replace
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/**
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* @typedef TextPlaceToFill
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* @property { {expression: string, replacedString:string}[] } expressions
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* @property {() => void} fill
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*/
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/**
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* @param {string} str
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* @param {Compartment} compartment
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* @returns {TextPlaceToFill | undefined}
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*/
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function findPlacesToFillInString(str, compartment) {
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const matches = str.matchAll(/\{([^{#\/]+?)\}/g)
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/** @type {TextPlaceToFill['expressions']} */
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const expressions = []
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/** @type {(string | ((data:any) => void))[]} */
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const parts = []
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let remaining = str;
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for (const match of matches) {
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//console.log('match', match)
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const [matched, group1] = match
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const replacedString = matched
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const expression = group1.trim()
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expressions.push({ expression, replacedString })
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const [fixedPart, newRemaining] = remaining.split(replacedString, 2)
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if (fixedPart.length >= 1)
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parts.push(fixedPart)
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parts.push(() => compartment.evaluate(expression))
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remaining = newRemaining
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}
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if (remaining.length >= 1)
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parts.push(remaining)
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//console.log('parts', parts)
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if (remaining === str) {
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// no match found
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return undefined
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}
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else {
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return {
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expressions,
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fill: (data) => {
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return parts.map(p => {
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if (typeof p === 'string')
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return p
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else
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return p(data)
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})
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.join('')
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}
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}
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}
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}
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/**
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* Content between blockStartNode and blockEndNode is extracted to a documentFragment
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* The original document is modified because nodes are removed from it to be part of the returned documentFragment
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*
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* startChild and endChild are ancestors of, respectively, blockStartNode and blockEndNode
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* and startChild.parentNode === endChild.parentNode
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*
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* @precondition blockStartNode needs to be before blockEndNode in document order
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*
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* @param {Node} blockStartNode
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* @param {Node} blockEndNode
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* @returns {{startChild: Node, endChild:Node, content: DocumentFragment}}
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*/
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function extractBlockContent(blockStartNode, blockEndNode){
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// find common ancestor of blockStartNode and blockEndNode
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let commonAncestor
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let startAncestor = blockStartNode
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let endAncestor = blockEndNode
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const startAncestry = new Set([startAncestor])
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const endAncestry = new Set([endAncestor])
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while(!startAncestry.has(endAncestor) && !endAncestry.has(startAncestor)){
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if(startAncestor.parentNode){
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startAncestor = startAncestor.parentNode
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startAncestry.add(startAncestor)
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}
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if(endAncestor.parentNode){
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endAncestor = endAncestor.parentNode
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endAncestry.add(endAncestor)
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}
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}
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if(startAncestry.has(endAncestor)){
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commonAncestor = endAncestor
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}
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else{
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commonAncestor = startAncestor
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}
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const startAncestryToCommonAncestor = [...startAncestry].slice(0, [...startAncestry].indexOf(commonAncestor))
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const endAncestryToCommonAncestor = [...endAncestry].slice(0, [...endAncestry].indexOf(commonAncestor))
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const startChild = startAncestryToCommonAncestor.at(-1)
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const endChild = endAncestryToCommonAncestor.at(-1)
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// Extract DOM content in a documentFragment
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const contentFragment = blockStartNode.ownerDocument.createDocumentFragment()
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/** @type {Element[]} */
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const repeatedPatternArray = []
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let sibling = startChild.nextSibling
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while(sibling !== endChild){
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repeatedPatternArray.push(sibling)
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sibling = sibling.nextSibling;
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}
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for(const sibling of repeatedPatternArray){
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sibling.parentNode?.removeChild(sibling)
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contentFragment.appendChild(sibling)
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}
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return {
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startChild,
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endChild,
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content: contentFragment
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}
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}
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/**
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*
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* @param {Node} ifOpeningMarkerNode
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* @param {Node | undefined} ifElseMarkerNode
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* @param {Node} ifClosingMarkerNode
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* @param {string} ifBlockConditionExpression
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* @param {Compartment} compartment
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*/
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function fillIfBlock(ifOpeningMarkerNode, ifElseMarkerNode, ifClosingMarkerNode, ifBlockConditionExpression, compartment){
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const conditionValue = compartment.evaluate(ifBlockConditionExpression)
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let startChild
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let endChild
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let markerNodes = new Set()
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let chosenFragment
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if(ifElseMarkerNode){
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const {
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startChild: startIfThenChild,
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endChild: endIfThenChild,
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content: thenFragment
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} = extractBlockContent(ifOpeningMarkerNode, ifElseMarkerNode)
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const {
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startChild: startIfElseChild,
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endChild: endIfElseChild,
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content: elseFragment
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} = extractBlockContent(ifElseMarkerNode, ifClosingMarkerNode)
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chosenFragment = conditionValue ? thenFragment : elseFragment
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startChild = startIfThenChild
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endChild = endIfElseChild
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markerNodes
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.add(startIfThenChild).add(endIfThenChild)
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.add(startIfElseChild).add(endIfElseChild)
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}
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else{
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const {
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startChild: startIfThenChild,
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endChild: endIfThenChild,
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content: thenFragment
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} = extractBlockContent(ifOpeningMarkerNode, ifClosingMarkerNode)
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chosenFragment = conditionValue ? thenFragment : undefined
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startChild = startIfThenChild
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endChild = endIfThenChild
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markerNodes
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.add(startIfThenChild).add(endIfThenChild)
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}
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if(chosenFragment){
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fillTemplatedOdtElement(
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chosenFragment,
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compartment
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)
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endChild.parentNode.insertBefore(chosenFragment, endChild)
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}
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for(const markerNode of markerNodes){
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try{
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// may throw if node already out of tree
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// might happen if
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markerNode.parentNode.removeChild(markerNode)
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}
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catch(e){}
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}
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}
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/**
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*
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* @param {Node} startNode
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* @param {string} iterableExpression
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* @param {string} itemExpression
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* @param {Node} endNode
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* @param {Compartment} compartment
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*/
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function fillEachBlock(startNode, iterableExpression, itemExpression, endNode, compartment){
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//console.log('fillEachBlock', iterableExpression, itemExpression)
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//console.log('startNode', startNode.nodeType, startNode.nodeName)
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//console.log('endNode', endNode.nodeType, endNode.nodeName)
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const {startChild, endChild, content: repeatedFragment} = extractBlockContent(startNode, endNode)
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// Find the iterable in the data
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// PPP eventually, evaluate the expression as a JS expression
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let iterable = compartment.evaluate(iterableExpression)
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if(!iterable || typeof iterable[Symbol.iterator] !== 'function'){
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// when there is no iterable, silently replace with empty array
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iterable = []
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}
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// create each loop result
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// using a for-of loop to accept all iterable values
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for(const item of iterable){
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/** @type {DocumentFragment} */
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// @ts-ignore
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const itemFragment = repeatedFragment.cloneNode(true)
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let insideCompartment = new Compartment({
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globals: Object.assign({}, compartment.globalThis, {[itemExpression]: item}),
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__options__: true
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})
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// recursive call to fillTemplatedOdtElement on itemFragment
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fillTemplatedOdtElement(
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itemFragment,
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insideCompartment
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)
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endChild.parentNode.insertBefore(itemFragment, endChild)
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}
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// remove block marker elements
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startChild.parentNode.removeChild(startChild)
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endChild.parentNode.removeChild(endChild)
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}
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const IF = 'IF'
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const EACH = 'EACH'
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// the regexps below are shared, so they shoudn't have state (no 'g' flag)
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const ifStartRegex = /{#if\s+([^}]+?)\s*}/;
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const elseMarker = '{:else}'
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const closingIfMarker = '{/if}'
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const eachStartMarkerRegex = /{#each\s+([^}]+?)\s+as\s+([^}]+?)\s*}/;
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const eachClosingBlockString = '{/each}'
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/**
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*
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* @param {Element | DocumentFragment | Document} rootElement
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* @param {Compartment} compartment
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* @returns {void}
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*/
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function fillTemplatedOdtElement(rootElement, compartment){
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//console.log('fillTemplatedOdtElement', rootElement.nodeType, rootElement.nodeName)
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let currentlyOpenBlocks = []
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/** @type {Node | undefined} */
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let eachOpeningMarkerNode
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/** @type {Node | undefined} */
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let eachClosingMarkerNode
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let eachBlockIterableExpression, eachBlockItemExpression;
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/** @type {Node | undefined} */
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let ifOpeningMarkerNode
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/** @type {Node | undefined} */
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let ifElseMarkerNode
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/** @type {Node | undefined} */
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let ifClosingMarkerNode
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let ifBlockConditionExpression
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// Traverse "in document order"
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// @ts-ignore
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traverse(rootElement, currentNode => {
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//console.log('currentlyUnclosedBlocks', currentlyUnclosedBlocks)
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const insideAnOpenBlock = currentlyOpenBlocks.length >= 1
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if(currentNode.nodeType === Node.TEXT_NODE){
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const text = currentNode.textContent || ''
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/**
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* looking for {#each x as y}
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*/
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const eachStartMatch = text.match(eachStartMarkerRegex);
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if(eachStartMatch){
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//console.log('startMatch', startMatch)
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currentlyOpenBlocks.push(EACH)
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if(insideAnOpenBlock){
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// do nothing
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}
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else{
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let [_, _iterableExpression, _itemExpression] = eachStartMatch
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eachBlockIterableExpression = _iterableExpression
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eachBlockItemExpression = _itemExpression
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eachOpeningMarkerNode = currentNode
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}
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}
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/**
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* Looking for {/each}
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*/
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const isEachClosingBlock = text.includes(eachClosingBlockString)
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if(isEachClosingBlock){
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//console.log('isEachClosingBlock', isEachClosingBlock)
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if(!eachOpeningMarkerNode)
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throw new Error(`{/each} found without corresponding opening {#each x as y}`)
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if(currentlyOpenBlocks.at(-1) !== EACH)
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throw new Error(`{/each} found while the last opened block was not an opening {#each x as y}`)
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if(currentlyOpenBlocks.length === 1){
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eachClosingMarkerNode = currentNode
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// found an {#each} and its corresponding {/each}
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// execute replacement loop
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fillEachBlock(eachOpeningMarkerNode, eachBlockIterableExpression, eachBlockItemExpression, eachClosingMarkerNode, compartment)
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eachOpeningMarkerNode = undefined
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eachBlockIterableExpression = undefined
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eachBlockItemExpression = undefined
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eachClosingMarkerNode = undefined
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}
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else{
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// ignore because it will be treated as part of the outer {#each}
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}
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currentlyOpenBlocks.pop()
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}
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/**
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* Looking for {#if ...}
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*/
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const ifStartMatch = text.match(ifStartRegex);
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if(ifStartMatch){
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currentlyOpenBlocks.push(IF)
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if(insideAnOpenBlock){
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// do nothing because the marker is too deep
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}
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else{
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let [_, _ifBlockConditionExpression] = ifStartMatch
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ifBlockConditionExpression = _ifBlockConditionExpression
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ifOpeningMarkerNode = currentNode
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}
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}
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/**
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* Looking for {:else}
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*/
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const hasElseMarker = text.includes(elseMarker);
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if(hasElseMarker){
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if(!insideAnOpenBlock)
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throw new Error('{:else} without a corresponding {#if}')
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if(currentlyOpenBlocks.length === 1){
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if(currentlyOpenBlocks[0] === IF){
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ifElseMarkerNode = currentNode
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}
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else
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throw new Error('{:else} inside an {#each} but without a corresponding {#if}')
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}
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else{
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// do nothing because the marker is too deep
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}
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}
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/**
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* Looking for {/if}
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*/
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const hasClosingMarker = text.includes(closingIfMarker);
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if(hasClosingMarker){
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if(!insideAnOpenBlock)
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throw new Error('{/if} without a corresponding {#if}')
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if(currentlyOpenBlocks.length === 1){
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if(currentlyOpenBlocks[0] === IF){
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ifClosingMarkerNode = currentNode
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// found an {#if} and its corresponding {/if}
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// execute replacement loop
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fillIfBlock(ifOpeningMarkerNode, ifElseMarkerNode, ifClosingMarkerNode, ifBlockConditionExpression, compartment)
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ifOpeningMarkerNode = undefined
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ifElseMarkerNode = undefined
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ifClosingMarkerNode = undefined
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ifBlockConditionExpression = undefined
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}
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else
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throw new Error('{/if} inside an {#each} but without a corresponding {#if}')
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}
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else{
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// do nothing because the marker is too deep
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}
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}
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/**
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* Looking for variables for substitutions
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*/
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if(!insideAnOpenBlock){
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// @ts-ignore
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if (currentNode.data) {
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// @ts-ignore
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const placesToFill = findPlacesToFillInString(currentNode.data, compartment)
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if(placesToFill){
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const newText = placesToFill.fill()
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// @ts-ignore
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const newTextNode = currentNode.ownerDocument?.createTextNode(newText)
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// @ts-ignore
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currentNode.parentNode?.replaceChild(newTextNode, currentNode)
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}
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}
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}
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else{
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// ignore because it will be treated as part of the outer {#each} block
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}
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}
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if(currentNode.nodeType === Node.ATTRIBUTE_NODE){
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// Looking for variables for substitutions
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if(!insideAnOpenBlock){
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// @ts-ignore
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if (currentNode.value) {
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// @ts-ignore
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const placesToFill = findPlacesToFillInString(currentNode.value, compartment)
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if(placesToFill){
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// @ts-ignore
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currentNode.value = placesToFill.fill()
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}
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}
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}
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else{
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// ignore because it will be treated as part of the {#each} block
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}
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}
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})
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}
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/**
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*
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* @param {Document} document
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* @param {Compartment} compartment
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* @returns {void}
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*/
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function fillTemplatedOdtDocument(document, compartment){
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// prepare tree to be used as template
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// Perform a first traverse to split textnodes when they contain several block markers
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traverse(document, currentNode => {
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if(currentNode.nodeType === Node.TEXT_NODE){
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// trouver tous les débuts et fin de each et découper le textNode
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let remainingText = currentNode.textContent || ''
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while(remainingText.length >= 1){
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let matchText;
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let matchIndex;
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// looking for a block marker
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for(const marker of [ifStartRegex, elseMarker, closingIfMarker, eachStartMarkerRegex, eachClosingBlockString]){
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if(typeof marker === 'string'){
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const index = remainingText.indexOf(marker)
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if(index !== -1){
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matchText = marker
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matchIndex = index
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// found the first match
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break; // get out of loop
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}
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}
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else{
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// marker is a RegExp
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const match = remainingText.match(marker)
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if(match){
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matchText = match[0]
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matchIndex = match.index
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// found the first match
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break; // get out of loop
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}
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}
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}
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if(matchText){
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// split 3-way : before-match, match and after-match
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if(matchText.length < remainingText.length){
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// @ts-ignore
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let afterMatchTextNode = currentNode.splitText(matchIndex + matchText.length)
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if(afterMatchTextNode.textContent && afterMatchTextNode.textContent.length >= 1){
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remainingText = afterMatchTextNode.textContent
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}
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else{
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remainingText = ''
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}
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// per spec, currentNode now contains before-match and match text
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// @ts-ignore
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if(matchIndex > 0){
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// @ts-ignore
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currentNode.splitText(matchIndex)
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}
|
|
|
|
if(afterMatchTextNode){
|
|
currentNode = afterMatchTextNode
|
|
}
|
|
}
|
|
else{
|
|
remainingText = ''
|
|
}
|
|
}
|
|
else{
|
|
remainingText = ''
|
|
}
|
|
}
|
|
|
|
}
|
|
else{
|
|
// skip
|
|
}
|
|
})
|
|
|
|
// now, each Node contains at most one block marker
|
|
|
|
fillTemplatedOdtElement(document, compartment)
|
|
}
|
|
|
|
|
|
|
|
const keptFiles = new Set(['content.xml', 'styles.xml', 'mimetype', 'META-INF/manifest.xml'])
|
|
|
|
/**
|
|
*
|
|
* @param {string} filename
|
|
* @returns {boolean}
|
|
*/
|
|
function keepFile(filename){
|
|
return keptFiles.has(filename) || filename.startsWith('Pictures/')
|
|
}
|
|
|
|
|
|
/**
|
|
* @param {ODTFile} odtTemplate
|
|
* @param {any} data
|
|
* @returns {Promise<ODTFile>}
|
|
*/
|
|
export default async function fillOdtTemplate(odtTemplate, data) {
|
|
|
|
const reader = new ZipReader(new Uint8ArrayReader(new Uint8Array(odtTemplate)));
|
|
|
|
// Lire toutes les entrées du fichier ODT
|
|
const entries = reader.getEntriesGenerator();
|
|
|
|
// Créer un ZipWriter pour le nouveau fichier ODT
|
|
const writer = new ZipWriter(new Uint8ArrayWriter());
|
|
|
|
/** @type {ODFManifest} */
|
|
let manifestFileData;
|
|
|
|
/** @type {{filename: string, content: Reader, options?: ZipWriterAddDataOptions}[]} */
|
|
const zipEntriesToAdd = []
|
|
|
|
// Parcourir chaque entrée du fichier ODT
|
|
for await (const entry of entries) {
|
|
const filename = entry.filename
|
|
|
|
//console.log('entry', filename, entry.directory)
|
|
|
|
// remove other files
|
|
if(!keepFile(filename)){
|
|
// ignore, do not create a corresponding entry in the new zip
|
|
}
|
|
else{
|
|
let content
|
|
let options
|
|
|
|
switch(filename){
|
|
case 'mimetype':
|
|
content = new TextReader(ODTMimetype)
|
|
options = {
|
|
level: 0,
|
|
compressionMethod: 0,
|
|
dataDescriptor: false,
|
|
extendedTimestamp: false,
|
|
}
|
|
|
|
zipEntriesToAdd.push({filename, content, options})
|
|
|
|
break;
|
|
case 'content.xml':
|
|
// @ts-ignore
|
|
const contentXml = await entry.getData(new TextWriter());
|
|
const contentDocument = parseXML(contentXml);
|
|
|
|
const compartment = new Compartment({
|
|
globals: data,
|
|
__options__: true
|
|
})
|
|
|
|
fillTemplatedOdtDocument(contentDocument, compartment)
|
|
|
|
const updatedContentXml = serializeToString(contentDocument)
|
|
|
|
content = new TextReader(updatedContentXml)
|
|
options = {
|
|
lastModDate: entry.lastModDate,
|
|
level: 9
|
|
};
|
|
|
|
zipEntriesToAdd.push({filename, content, options})
|
|
|
|
break;
|
|
|
|
case 'META-INF/manifest.xml':
|
|
// @ts-ignore
|
|
const manifestXml = await entry.getData(new TextWriter());
|
|
const manifestDocument = parseXML(manifestXml);
|
|
manifestFileData = getManifestFileData(manifestDocument)
|
|
|
|
break;
|
|
|
|
case 'styles.xml':
|
|
default:
|
|
const blobWriter = new BlobWriter();
|
|
// @ts-ignore
|
|
await entry.getData(blobWriter);
|
|
const blob = await blobWriter.getData();
|
|
|
|
content = new BlobReader(blob)
|
|
zipEntriesToAdd.push({filename, content})
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
for(const {filename, content, options} of zipEntriesToAdd){
|
|
await writer.add(filename, content, options);
|
|
}
|
|
|
|
const newZipFilenames = new Set(zipEntriesToAdd.map(ze => ze.filename))
|
|
|
|
if(!manifestFileData){
|
|
throw new Error(`'META-INF/manifest.xml' zip entry missing`)
|
|
}
|
|
|
|
// remove ignored files from manifest.xml
|
|
for(const filename of manifestFileData.fileEntries.keys()){
|
|
if(!newZipFilenames.has(filename)){
|
|
manifestFileData.fileEntries.delete(filename)
|
|
}
|
|
}
|
|
|
|
const manifestFileXml = makeManifestFile(manifestFileData)
|
|
await writer.add('META-INF/manifest.xml', new TextReader(manifestFileXml));
|
|
|
|
await reader.close();
|
|
|
|
return writer.close();
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|