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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| 
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| const { sectionFilter } = require('./utils');
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| 
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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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| 
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| module.exports = createPlugin;
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