epub-cfi-generator
Node.js utility that generates CFI for each text node in each spine of given EPUB.
Takes EPUB file as input (either epub file or unzipped epub directory), produces json file as output.
Internally uses readium-cfi-js that does most job.
Usage
Command line
npx epub-cfi-generator input.epub output.jsonExamples
Input
Reference EPUB (close to https://idpf.org/epub/linking/cfi/#sec-path-examples)
package.opf
<?xml version="1.0"?>
<package version="2.0"
unique-identifier="bookid"
xmlns="http://www.idpf.org/2007/opf"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:opf="http://www.idpf.org/2007/opf">
<metadata>
<dc:title>Test EPUB</dc:title>
<dc:identifier id="bookid">some-book-id</dc:identifier>
<dc:creator>Viachaslau Tyshkavets</dc:creator>
<dc:language>en</dc:language>
</metadata>
<manifest>
<item id="test" href="html/test.xhtml" media-type="application/xhtml+xml"/>
</manifest>
<spine>
<itemref id="testref" idref="test"/>
</spine>
</package>test.xhtml
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Title</title>
</head>
<body id="body01">
<p>1</p>
<p>2</p>
<p>3</p>
<p>4</p>
<p id="para05">xxx<em>yyy</em>0123456789</p>
<p>6</p>
<p>7</p>
<img id="svgimg" src="foo.svg" alt="image"/>
<p>8</p>
<p>9</p>
</body>
</html>Output:
Output json
[
{
"idref": "test",
"href": "html/test.xhtml",
"content": [
{
"node": "1",
"cfi": "/6/2[testref]!/4[body01]/2/1:0"
},
{
"node": "2",
"cfi": "/6/2[testref]!/4[body01]/4/1:0"
},
{
"node": "3",
"cfi": "/6/2[testref]!/4[body01]/6/1:0"
},
{
"node": "4",
"cfi": "/6/2[testref]!/4[body01]/8/1:0"
},
{
"node": "xxx",
"cfi": "/6/2[testref]!/4[body01]/10[para05]/1:0"
},
{
"node": "yyy",
"cfi": "/6/2[testref]!/4[body01]/10[para05]/2/1:0"
},
{
"node": "0123456789",
"cfi": "/6/2[testref]!/4[body01]/10[para05]/3:0"
},
{
"node": "6",
"cfi": "/6/2[testref]!/4[body01]/12/1:0"
},
{
"node": "7",
"cfi": "/6/2[testref]!/4[body01]/14/1:0"
},
{
"node": "8",
"cfi": "/6/2[testref]!/4[body01]/18/1:0"
},
{
"node": "9",
"cfi": "/6/2[testref]!/4[body01]/20/1:0"
}
]
}
]API
EpubCfiGenerator.parse()
const EpubCfiGenerator = require('./epub-cfi-generator');
const result = await new EpubCfiGenerator().parse(inputFile);License
MIT