1 | 'use strict'
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2 |
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3 | module.exports = toc
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4 |
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5 | var search = require('./search')
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6 | var contents = require('./contents')
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7 |
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8 |
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9 | function toc(node, options) {
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10 | var settings = options || {}
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11 | var heading = settings.heading ? toExpression(settings.heading) : null
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12 | var result = search(node, heading, settings)
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13 | var map = result.map
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14 |
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15 | result.map =
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16 | map.length === 0 ? null : contents(map, settings.tight, settings.prefix)
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17 |
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18 |
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19 | if (!heading) {
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20 | result.index = null
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21 | result.endIndex = null
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22 | }
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23 |
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24 | return result
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25 | }
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26 |
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27 |
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28 | function toExpression(value) {
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29 | return new RegExp('^(' + value + ')$', 'i')
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30 | }
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