51 lines
1.3 KiB
JavaScript
51 lines
1.3 KiB
JavaScript
var fs = require('fs');
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var font = require('./font.js');
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var TTFWriter = require('node-sfnt').TTFWriter;
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var TTF = require('node-sfnt').TTF;
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/**
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* buffer转换成ArrayBuffer
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*
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* @param {Buffer} buffer 缓冲数组
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* @return {ArrayBuffer}
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*/
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function toArrayBuffer(buffer) {
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var length = buffer.length;
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var view = new DataView(new ArrayBuffer(length), 0, length);
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for (var i = 0, l = length; i < l; i++) {
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view.setUint8(i, buffer[i], false);
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}
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return view.buffer;
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}
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/**
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* ArrayBuffer转换成Buffer
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*
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* @param {ArrayBuffer} arrayBuffer 缓冲数组
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* @return {Buffer}
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*/
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function toBuffer(arrayBuffer) {
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var length = arrayBuffer.byteLength;
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var view = new DataView(arrayBuffer, 0, length);
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var buffer = new Buffer(length);
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for (var i = 0, l = length; i < l; i++) {
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buffer[i] = view.getUint8(i, false);
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}
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return buffer;
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}
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var options = {preserveOS2Version: true}
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function readttf(file) {
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var data = fs.readFileSync(file);
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var buffer = toArrayBuffer(data);
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var ttf = (new OTFReader(options)).read(buffer);
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return ttf;
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}
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function writettf(ttf, file){
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var buffer = new TTFWriter(options).write(ttf);
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fs.writeFileSync(file, toBuffer(buffer));
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}
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fs.writeFileSync(process.argv[2], toBuffer(new TTFWriter(options).write(font.font))); |