fix(compiler-core): preserve whitespaces in texts full of whitespaces

[rudyxu1102]

Fixes #7789

[skirtles-code]

I was hoping to review this, but parse.ts was removed as part of the parser rewrite.

I think this section of the new parser may be the equivalent functionality:

core/packages/compiler-core/src/parser.ts

Lines 821 to 831 in cdb1d17

	function condenseWhitespace(
	nodes: TemplateChildNode[],
	tag?: string,
	): TemplateChildNode[] {
	const shouldCondense = currentOptions.whitespace !== 'preserve'
	let removedWhitespace = false
	for (let i = 0; i < nodes.length; i++) {
	const node = nodes[i]
	if (node.type === NodeTypes.TEXT) {
	if (!inPre) {
	if (isAllWhitespace(node.content)) {

I also confirmed that the original issue is still present in 3.4.27.

[rudyxu1102]

Already updated, I really appreciate your time.

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	99.1 kB	37.5 kB	33.8 kB
vue.global.prod.js	157 kB (+12 B)	57.3 kB (+3 B)	51 kB (-35 B)

Usages

Name	Size	Gzip	Brotli
createApp	54.5 kB	21.1 kB	19.3 kB
createSSRApp	58.4 kB	22.8 kB	20.8 kB
defineCustomElement	59.1 kB	22.6 kB	20.6 kB
overall	68.1 kB	26.2 kB	23.8 kB

[pkg-pr-new]

commit: a21d48d

@vue/compiler-core

pnpm add https://pkg.pr.new/@vue/compiler-core@7829

@vue/compiler-dom

pnpm add https://pkg.pr.new/@vue/compiler-dom@7829

@vue/compiler-sfc

pnpm add https://pkg.pr.new/@vue/compiler-sfc@7829

@vue/compiler-ssr

pnpm add https://pkg.pr.new/@vue/compiler-ssr@7829

@vue/reactivity

pnpm add https://pkg.pr.new/@vue/reactivity@7829

@vue/runtime-core

pnpm add https://pkg.pr.new/@vue/runtime-core@7829

@vue/runtime-dom

pnpm add https://pkg.pr.new/@vue/runtime-dom@7829

@vue/server-renderer

pnpm add https://pkg.pr.new/@vue/server-renderer@7829

@vue/shared

pnpm add https://pkg.pr.new/@vue/shared@7829

vue

pnpm add https://pkg.pr.new/vue@7829

@vue/compat

pnpm add https://pkg.pr.new/@vue/compat@7829

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