hexo/node_modules/transliteration/lib/node/utils.js

86 lines
2.7 KiB
JavaScript

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
// Credit: https://github.com/bestiejs/punycode.js/blob/master/LICENSE-MIT.txt
const ucs2decode = exports.ucs2decode = string => {
const output = [];
let counter = 0;
while (counter < string.length) {
const value = string.charCodeAt(counter++);
if (value >= 0xD800 && value <= 0xDBFF && counter < string.length) {
// high surrogate, and there is a next character
const extra = string.charCodeAt(counter++);
if ((extra & 0xFC00) === 0xDC00) {
// low surrogate
output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
} else {
// unmatched surrogate; only append this code unit, in case the next
// code unit is the high surrogate of a surrogate pair
output.push(value);
counter--;
}
} else {
output.push(value);
}
}
return output;
};
// add additional space between Chinese and English.
const fixChineseSpace = exports.fixChineseSpace = str => str.replace(/([^\u4e00-\u9fa5\W])([\u4e00-\u9fa5])/g, '$1 $2');
// Escape regular expression string
const escapeRegExp = exports.escapeRegExp = sourceStr => {
let str = sourceStr;
if (str === null || str === undefined) {
str = '';
}
return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&');
};
/**
* Merge configuration options. Use deep merge if option is an array.
*/
const mergeOptions = exports.mergeOptions = (defaultOptions, options) => {
const result = {};
const opt = options || {};
for (const key in defaultOptions) {
result[key] = opt[key] === undefined ? defaultOptions[key] : opt[key];
if (result[key] instanceof Array) {
result[key] = result[key].slice(0);
}
// convert object version of the 'replace' option into array version
if (key === 'replace' && typeof result[key] === 'object' && !(result[key] instanceof Array)) {
const replaceArr = [];
for (const source in result.replace) {
replaceArr.push([source, result.replace[source]]);
}
result.replace = replaceArr;
}
}
return result;
};
const parseCmdEqualOption = exports.parseCmdEqualOption = option => {
let opt = option || {};
const replaceToken = '__REPLACE_TOKEN__';
let tmpToken = replaceToken;
let result;
while (opt.indexOf(tmpToken) > -1) {
tmpToken += tmpToken;
}
// escape for \\=
if (opt.match(/[^\\]\\\\=/)) {
opt = opt.replace(/([^\\])\\\\=/g, '$1\\=');
// escape for \=
} else if (opt.match(/[^\\]\\=/)) {
opt = opt.replace(/([^\\])\\=/g, `$1${tmpToken}`);
}
result = opt.split('=').map(value => value.replace(new RegExp(tmpToken, 'g'), '='));
if (result.length !== 2) {
result = false;
}
return result;
};