52 lines
962 B
JavaScript
52 lines
962 B
JavaScript
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'use strict'
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var repeat = require('repeat-string')
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module.exports = heading
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var lineFeed = '\n'
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var space = ' '
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var numberSign = '#'
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var dash = '-'
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var equalsTo = '='
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// Stringify a heading.
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//
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// In `setext: true` mode and when `depth` is smaller than three, creates a
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// setext header:
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//
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// ```markdown
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// Foo
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// ===
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// ```
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//
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// Otherwise, an ATX header is generated:
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//
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// ```markdown
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// ### Foo
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// ```
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//
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// In `closeAtx: true` mode, the header is closed with hashes:
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//
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// ```markdown
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// ### Foo ###
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// ```
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function heading(node) {
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var self = this
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var depth = node.depth
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var setext = self.options.setext
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var closeAtx = self.options.closeAtx
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var content = self.all(node).join('')
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var prefix
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if (setext && depth < 3) {
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return (
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content + lineFeed + repeat(depth === 1 ? equalsTo : dash, content.length)
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)
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}
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prefix = repeat(numberSign, node.depth)
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return prefix + space + content + (closeAtx ? space + prefix : '')
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}
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