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Check if top-level node has text content

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This commit is contained in:
Hongbo Wu 2022-08-30 16:56:13 +08:00
parent d915d7a1e1
commit 3deed195f6
1 changed files with 12 additions and 2 deletions
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14
packages/text-to-speech/src/htmlToSsml.ts
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@ -70,7 +70,7 @@ function parseDomTree(pageNode: Element) {
}
function emit(textItems: string[], text: string) {
textItems.push(text.trim())
textItems.push(text)
}
function cleanTextNode(textNode: ChildNode): string {
@ -167,6 +167,16 @@ const endSsml = (): string => {
return `</prosody></voice></speak>`
}
const hasSignificantText = (node: ChildNode): boolean => {
let text = ''
for (const child of Array.from(node.childNodes)) {
if (child.nodeType === 3 /* Node.TEXT_NODE */) {
text += child.textContent
}
}
return text.trim().length > 0
}
export const ssmlItemText = (item: SSMLItem): string => {
return [item.open, ...item.textItems, item.close].join('')
}
@ -198,7 +208,7 @@ export const htmlToSsml = (html: string, options: SSMLOptions): SSMLItem[] => {
const textItems: string[] = []
const node = parsedNodes[i - 2]
if (TOP_LEVEL_TAGS.includes(node.nodeName)) {
if (TOP_LEVEL_TAGS.includes(node.nodeName) || hasSignificantText(node)) {
i = emitElement(textItems, node, true)
items.push({
open: startSsml(node, options),