24 lines
		
	
	
		
			566 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
		
			566 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
const visit = require('unist-util-visit');
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const { selectAll } = require('hast-util-select');
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const { sectionFilter } = require('./utils');
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function createPlugin() {
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  return function transformer(tree, file) {
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    function visitor(node) {
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      if (sectionFilter(node, 'solution')) {
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        const solutions = selectAll('code', node).map(
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          element => element.children[0].value
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        );
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        file.data = {
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          ...file.data,
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          solutions
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        };
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      }
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    }
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    visit(tree, 'element', visitor);
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  };
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}
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module.exports = createPlugin;
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