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David Bashford
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Aug 3, 2018
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| var EPub = require( 'epub2/node' ) | ||
| , htmlExtract = require( './html' ) | ||
| ; | ||
|
|
||
| function extractText( filePath, options, cb ) { | ||
| var epub = new EPub( filePath ) | ||
| , allText = '' | ||
| , hasError = false | ||
| , chapterCount = 0 | ||
| ; | ||
|
|
||
| epub.on( 'end', function() { | ||
| // Iterate over each chapter... | ||
| epub.flow.forEach( function( chapter ) { | ||
| // if already error, don't do anything | ||
| if ( !hasError ) { | ||
| // Get the chapter text | ||
| epub.getChapterRaw( chapter.id, function( rawChaperError, text ) { | ||
| if ( rawChaperError ) { | ||
| hasError = true; | ||
| cb( rawChaperError, null ); | ||
| } else { | ||
| // Extract the raw text from the chapter text (it's html) | ||
| htmlExtract.extractFromText( text, options, function( htmlExtractError, outText ) { | ||
| if ( htmlExtractError ) { | ||
| hasError = true; | ||
| cb( htmlExtractError, null ); | ||
| } else { | ||
| allText += outText; | ||
| chapterCount++; | ||
| if ( chapterCount === epub.flow.length ) { | ||
| cb( null, allText ); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
| }); | ||
| } | ||
| }); | ||
| }); | ||
|
|
||
| epub.parse(); | ||
| } | ||
|
|
||
| module.exports = { | ||
| types: ['application/epub+zip'], | ||
| extract: extractText | ||
| }; |
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