Description
If the next sibling node after a tag declared as unpaired (by unpairedTags option) is simple #text, it will be moved as a child during parsing. When passing such an object to XMLBuilder to restore the original XHTML, such text will be cut out.
This does NOT reproduce if the node following unpaired is followed by a tag. For example:
<p>hello<br><b>world</b></p>
It also does NOT reproduce if the unpaired node contains a closing slash:
Code
import { XMLParser, XMLBuilder } from 'fast-xml-parser'
const html = `
<!DOCTYPE html>
<html lang="en">
<head>
<title>Fast XML Parser</title>
<meta charset="UTF-8">
</head>
<body>
<p>
hello
<br>
world
</p>
</body>
</html>`
const parsingOptions = {
ignoreAttributes: false,
preserveOrder: true,
unpairedTags: ["hr", "br", "link", "meta"],
};
const parser = new XMLParser(parsingOptions);
let result = parser.parse(html);
console.log(JSON.stringify(result, null, 2))
const builderOptions = {
ignoreAttributes: false,
preserveOrder: true,
suppressEmptyNode: true,
unpairedTags: ["hr", "br", "link", "meta"],
}
const builder = new XMLBuilder(builderOptions);
const output = builder.build(result);
console.log(output)Output
jObj
[
{
"html": [
{
"head": [
{
"title": [
{
"#text": "Fast XML Parser"
}
]
},
{
"meta": [],
":@": {
"@_charset": "UTF-8"
}
}
]
},
{
"body": [
{
"p": [
{
"#text": "hello"
},
{
"br": [
{
"#text": "world"
}
]
}
]
}
]
}
],
":@": {
"@_lang": "en"
}
}
]xmlOutput
<html lang="en"><head><title>Fast XML Parser</title><meta charset="UTF-8"></head><body><p>hello<br></p></body></html>
expected data
jObj
[
{
"html": [
{
"head": [
{
"title": [
{
"#text": "Fast XML Parser"
}
]
},
{
"meta": [],
":@": {
"@_charset": "UTF-8"
}
}
]
},
{
"body": [
{
"p": [
{
"#text": "hello"
},
{
"br": []
},
{
"#text": "world"
}
]
}
]
}
],
":@": {
"@_lang": "en"
}
}
]xmlOutput
<html lang="en"><head><title>Fast XML Parser</title><meta charset="UTF-8"></head><body><p>hello<br>world</p></body></html>
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Description
If the next sibling node after a tag declared as unpaired (by
unpairedTagsoption) is simple#text, it will be moved as a child during parsing. When passing such an object toXMLBuilderto restore the original XHTML, such text will be cut out.This does NOT reproduce if the node following unpaired is followed by a tag. For example:
It also does NOT reproduce if the unpaired node contains a closing slash:
Code
Output
jObj
[ { "html": [ { "head": [ { "title": [ { "#text": "Fast XML Parser" } ] }, { "meta": [], ":@": { "@_charset": "UTF-8" } } ] }, { "body": [ { "p": [ { "#text": "hello" }, { "br": [ { "#text": "world" } ] } ] } ] } ], ":@": { "@_lang": "en" } } ]xmlOutput
expected data
jObj
[ { "html": [ { "head": [ { "title": [ { "#text": "Fast XML Parser" } ] }, { "meta": [], ":@": { "@_charset": "UTF-8" } } ] }, { "body": [ { "p": [ { "#text": "hello" }, { "br": [] }, { "#text": "world" } ] } ] } ], ":@": { "@_lang": "en" } } ]xmlOutput
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