95 lines
1.8 KiB
JavaScript
95 lines
1.8 KiB
JavaScript
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/*!
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* Jade - nodes - Tag
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* Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
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* MIT Licensed
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*/
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/**
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* Module dependencies.
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*/
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var Attrs = require('./attrs'),
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Block = require('./block'),
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inlineTags = require('../inline-tags');
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/**
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* Initialize a `Tag` node with the given tag `name` and optional `block`.
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*
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* @param {String} name
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* @param {Block} block
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* @api public
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*/
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var Tag = module.exports = function Tag(name, block) {
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this.name = name;
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this.attrs = [];
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this.block = block || new Block;
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};
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/**
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* Inherit from `Attrs`.
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*/
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Tag.prototype.__proto__ = Attrs.prototype;
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/**
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* Clone this tag.
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*
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* @return {Tag}
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* @api private
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*/
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Tag.prototype.clone = function(){
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var clone = new Tag(this.name, this.block.clone());
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clone.line = this.line;
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clone.attrs = this.attrs;
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clone.textOnly = this.textOnly;
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return clone;
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};
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/**
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* Check if this tag is an inline tag.
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*
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* @return {Boolean}
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* @api private
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*/
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Tag.prototype.isInline = function(){
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return ~inlineTags.indexOf(this.name);
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};
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/**
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* Check if this tag's contents can be inlined. Used for pretty printing.
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*
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* @return {Boolean}
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* @api private
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*/
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Tag.prototype.canInline = function(){
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var nodes = this.block.nodes;
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function isInline(node){
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// Recurse if the node is a block
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if (node.isBlock) return node.nodes.every(isInline);
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return node.isText || (node.isInline && node.isInline());
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}
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// Empty tag
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if (!nodes.length) return true;
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// Text-only or inline-only tag
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if (1 == nodes.length) return isInline(nodes[0]);
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// Multi-line inline-only tag
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if (this.block.nodes.every(isInline)) {
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for (var i = 1, len = nodes.length; i < len; ++i) {
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if (nodes[i-1].isText && nodes[i].isText)
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return false;
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}
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return true;
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}
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// Mixed tag
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return false;
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}; |