170 lines
5.6 KiB
HTML
170 lines
5.6 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>JSDoc: Source: runtime.js</title>
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<script src="scripts/prettify/prettify.js"> </script>
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</head>
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<body>
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<div id="main">
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<h1 class="page-title">Source: runtime.js</h1>
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<section>
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<article>
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<pre class="prettyprint source linenums"><code>var Compiler = require('./compiler');
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/** A set of utility functions that are called by the compiled Javascript
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* functions, these are included locally in the output of {@link
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* MessageFormat#compile compile()}.
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*
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* @class
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* @param {MessageFormat} mf - A MessageFormat instance
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*/
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function Runtime(mf) {
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this.mf = mf;
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this.setStrictNumber(mf.strictNumberSign);
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}
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module.exports = Runtime;
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/** Utility function for `#` in plural rules
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*
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* Will throw an Error if `value` has a non-numeric value and `offset` is
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* non-zero or {@link MessageFormat#setStrictNumberSign} is set.
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*
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* @function Runtime#number
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* @param {number} value - The value to operate on
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* @param {string} name - The name of the argument, used for error reporting
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* @param {number} [offset=0] - An optional offset, set by the surrounding context
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* @returns {number|string} The result of applying the offset to the input value
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*/
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function defaultNumber(value, name, offset) {
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if (!offset) return value;
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if (isNaN(value)) throw new Error('Can\'t apply offset:' + offset + ' to argument `' + name +
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'` with non-numerical value ' + JSON.stringify(value) + '.');
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return value - offset;
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}
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/** @private */
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function strictNumber(value, name, offset) {
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if (isNaN(value)) throw new Error('Argument `' + name + '` has non-numerical value ' + JSON.stringify(value) + '.');
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return value - (offset || 0);
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}
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/** Set how strictly the {@link number} method parses its input.
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*
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* According to the ICU MessageFormat spec, `#` can only be used to replace a
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* number input of a `plural` statement. By default, messageformat.js does not
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* throw a runtime error if you use non-numeric argument with a `plural` rule,
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* unless rule also includes a non-zero `offset`.
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*
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* This is called by {@link MessageFormat#setStrictNumberSign} to follow the
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* stricter ICU MessageFormat spec.
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*
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* @param {boolean} [enable=false]
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*/
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Runtime.prototype.setStrictNumber = function(enable) {
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this.number = enable ? strictNumber : defaultNumber;
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}
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/** Utility function for `{N, plural|selectordinal, ...}`
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*
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* @param {number} value - The key to use to find a pluralization rule
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* @param {number} offset - An offset to apply to `value`
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* @param {function} lcfunc - A locale function from `pluralFuncs`
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* @param {Object.<string,string>} data - The object from which results are looked up
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* @param {?boolean} isOrdinal - If true, use ordinal rather than cardinal rules
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* @returns {string} The result of the pluralization
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*/
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Runtime.prototype.plural = function(value, offset, lcfunc, data, isOrdinal) {
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if ({}.hasOwnProperty.call(data, value)) return data[value];
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if (offset) value -= offset;
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var key = lcfunc(value, isOrdinal);
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if (key in data) return data[key];
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return data.other;
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}
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/** Utility function for `{N, select, ...}`
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*
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* @param {number} value - The key to use to find a selection
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* @param {Object.<string,string>} data - The object from which results are looked up
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* @returns {string} The result of the select statement
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*/
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Runtime.prototype.select = function(value, data) {
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if ({}.hasOwnProperty.call(data, value)) return data[value];
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return data.other;
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}
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/** @private */
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Runtime.prototype.toString = function(pluralFuncs, compiler) {
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function _stringify(o, level) {
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if (typeof o != 'object') {
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var funcStr = o.toString().replace(/^(function )\w*/, '$1');
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var indent = /([ \t]*)\S.*$/.exec(funcStr);
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return indent ? funcStr.replace(new RegExp('^' + indent[1], 'mg'), '') : funcStr;
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}
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var s = [];
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for (var i in o) {
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if (level == 0) s.push('var ' + i + ' = ' + _stringify(o[i], level + 1) + ';\n');
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else s.push(Compiler.propname(i) + ': ' + _stringify(o[i], level + 1));
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}
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if (level == 0) return s.join('');
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if (s.length == 0) return '{}';
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var indent = ' '; while (--level) indent += ' ';
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return '{\n' + s.join(',\n').replace(/^/gm, indent) + '\n}';
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}
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var obj = {};
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Object.keys(compiler.locales).forEach(function(lc) { obj[Compiler.funcname(lc)] = pluralFuncs[lc]; });
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Object.keys(compiler.runtime).forEach(function(fn) { obj[fn] = this[fn]; }, this);
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var fmtKeys = Object.keys(compiler.formatters);
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var fmt = this.mf.fmt;
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if (fmtKeys.length) obj.fmt = fmtKeys.reduce(function(o, key) { o[key] = fmt[key]; return o; }, {});
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return _stringify(obj, 0);
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}
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</code></pre>
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</article>
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</section>
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</div>
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<nav>
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="Compiler.html">Compiler</a></li><li><a href="MessageFormat.html">MessageFormat</a></li><li><a href="Runtime.html">Runtime</a></li></ul><h3>Namespaces</h3><ul><li><a href="MessageFormat.formatters.html">formatters</a></li></ul>
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</nav>
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<br class="clear">
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<footer>
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Sep 27 2016 00:30:24 GMT+0300 (EEST)
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</footer>
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<script> prettyPrint(); </script>
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<script src="scripts/linenumber.js"> </script>
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</body>
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</html>
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