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- 'use strict'
- module.exports = toc
- var search = require('./search')
- var contents = require('./contents')
- // Get a TOC representation of `node`.
- function toc(node, options) {
- var settings = options || {}
- var heading = settings.heading ? toExpression(settings.heading) : null
- var result = search(node, heading, settings)
- var map = result.map
- result.map = map.length === 0 ? null : contents(map, settings.tight)
- // No given heading.
- if (!heading) {
- result.index = null
- result.endIndex = null
- }
- return result
- }
- // Transform a string into an applicable expression.
- function toExpression(value) {
- return new RegExp('^(' + value + ')$', 'i')
- }
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