40 lines
		
	
	
		
			938 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			40 lines
		
	
	
		
			938 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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exports.name = 'convertEllipseToCircle';
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exports.type = 'visitor';
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exports.active = true;
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exports.description = 'converts non-eccentric <ellipse>s to <circle>s';
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/**
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 * Converts non-eccentric <ellipse>s to <circle>s.
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 *
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 * @see https://www.w3.org/TR/SVG11/shapes.html
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 *
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 * @author Taylor Hunt
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 *
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 * @type {import('../lib/types').Plugin<void>}
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 */
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exports.fn = () => {
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  return {
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    element: {
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      enter: (node) => {
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        if (node.name === 'ellipse') {
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          const rx = node.attributes.rx || '0';
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          const ry = node.attributes.ry || '0';
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          if (
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            rx === ry ||
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            rx === 'auto' ||
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            ry === 'auto' // SVG2
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          ) {
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            node.name = 'circle';
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            const radius = rx === 'auto' ? ry : rx;
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            delete node.attributes.rx;
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            delete node.attributes.ry;
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            node.attributes.r = radius;
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          }
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        }
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      },
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    },
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  };
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};
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