hexo/node_modules/stylus/lib/nodes/string.js

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2023-10-03 11:14:36 +08:00
/*!
* Stylus - String
* Copyright (c) Automattic <developer.wordpress.com>
* MIT Licensed
*/
/**
* Module dependencies.
*/
var Node = require('./node')
, sprintf = require('../functions').s
, utils = require('../utils')
, nodes = require('./');
/**
* Initialize a new `String` with the given `val`.
*
* @param {String} val
* @param {String} quote
* @api public
*/
var String = module.exports = function String(val, quote){
Node.call(this);
this.val = val;
this.string = val;
this.prefixed = false;
if (typeof quote !== 'string') {
this.quote = "'";
} else {
this.quote = quote;
}
};
/**
* Inherit from `Node.prototype`.
*/
String.prototype.__proto__ = Node.prototype;
/**
* Return quoted string.
*
* @return {String}
* @api public
*/
String.prototype.toString = function(){
return this.quote + this.val + this.quote;
};
/**
* Return a clone of this node.
*
* @return {Node}
* @api public
*/
String.prototype.clone = function(){
var clone = new String(this.val, this.quote);
clone.lineno = this.lineno;
clone.column = this.column;
clone.filename = this.filename;
return clone;
};
/**
* Return a JSON representation of this node.
*
* @return {Object}
* @api public
*/
String.prototype.toJSON = function(){
return {
__type: 'String',
val: this.val,
quote: this.quote,
lineno: this.lineno,
column: this.column,
filename: this.filename
};
};
/**
* Return Boolean based on the length of this string.
*
* @return {Boolean}
* @api public
*/
String.prototype.toBoolean = function(){
return nodes.Boolean(this.val.length);
};
/**
* Coerce `other` to a string.
*
* @param {Node} other
* @return {String}
* @api public
*/
String.prototype.coerce = function(other){
switch (other.nodeName) {
case 'string':
return other;
case 'expression':
return new String(other.nodes.map(function(node){
return this.coerce(node).val;
}, this).join(' '));
default:
return new String(other.toString());
}
};
/**
* Operate on `right` with the given `op`.
*
* @param {String} op
* @param {Node} right
* @return {Node}
* @api public
*/
String.prototype.operate = function(op, right){
switch (op) {
case '%':
var expr = new nodes.Expression;
expr.push(this);
// constructargs
var args = 'expression' == right.nodeName
? utils.unwrap(right).nodes
: [right];
// apply
return sprintf.apply(null, [expr].concat(args));
case '+':
var expr = new nodes.Expression;
expr.push(new String(this.val + this.coerce(right).val));
return expr;
default:
return Node.prototype.operate.call(this, op, right);
}
};