@sctg/fontminify
Version:
Minify font seamlessly, font subsetter, webfont (eot, woff, svg) converter.
99 lines (98 loc) • 2.13 kB
JavaScript
/**
* @file util
* @author junmer eltorio
*/
/* eslint-env node */
import fs from 'fs';
import path from 'path';
import _ from 'lodash';
import codePoints from 'code-points';
/**
* getFontFolder
*
*/
function getFontFolder() {
return path.resolve({
win32: '/Windows/fonts',
darwin: '/Library/Fonts',
linux: '/usr/share/fonts/truetype'
}[process.platform]);
}
/**
* getFonts
*
*/
function getFonts() {
return fs.readdirSync(getFontFolder());
}
/**
* getPureText
*
* @see https://msdn.microsoft.com/zh-cn/library/ie/2yfce773
* @see http://www.unicode.org/charts/
*
* @param str target text
* @return pure text
*/
function getPureText(str) {
// fix space
const emptyTextMap = {};
function replaceEmpty(word) {
emptyTextMap[word] = 1;
return '';
}
const pureText = String(str)
.trim()
.replace(/[\s]/g, replaceEmpty)
// .replace(/[\f]/g, '')
// .replace(/[\b]/g, '')
// .replace(/[\n]/g, '')
// .replace(/[\t]/g, '')
// .replace(/[\r]/g, '')
.replace(/[\u2028]/g, '')
.replace(/[\u2029]/g, '');
const emptyText = Object.keys(emptyTextMap).join('');
return pureText + emptyText;
}
/**
* getUniqText
*
*/
function getUniqText(str) {
return [...new Set(str.split(''))].join('');
}
/**
* basic chars
*
* "!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}"
*
* @type {string}
*/
const basicText = String.fromCharCode.apply(this, _.range(33, 126));
/**
* get subset text
*
* @param {Object} opts opts
* @return {string} subset text
*/
function getSubsetText(opts) {
let text = opts.text || '';
// trim
text && opts.trim && (text = getPureText(text));
// basicText
opts.basicText && (text += basicText);
return text;
}
/**
* string to unicodes
*
*/
function string2unicodes(str) {
return [...new Set(codePoints(str))];
}
export { getFontFolder };
export { getFonts };
export { getPureText };
export { getUniqText };
export { getSubsetText };
export { string2unicodes };