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'use strict'
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var repeat = require('repeat-string')
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var pad = require('../util/pad')
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module.exports = listItem
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var lineFeed = '\n'
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var space = ' '
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var leftSquareBracket = '['
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var rightSquareBracket = ']'
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var lowercaseX = 'x'
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var ceil = Math.ceil
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var blank = lineFeed + lineFeed
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var tabSize = 4
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// Stringify a list item.
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//
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// Prefixes the content with a checked checkbox when `checked: true`:
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//
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// ```markdown
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// [x] foo
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// ```
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//
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// Prefixes the content with an unchecked checkbox when `checked: false`:
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//
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// ```markdown
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// [ ] foo
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// ```
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function listItem(node, parent, position, bullet) {
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var self = this
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var style = self.options.listItemIndent
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var marker = bullet || self.options.bullet
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var spread = node.spread == null ? true : node.spread
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var checked = node.checked
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var children = node.children
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var length = children.length
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var values = []
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var index = -1
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var value
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var indent
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var spacing
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while (++index < length) {
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values[index] = self.visit(children[index], node)
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}
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value = values.join(spread ? blank : lineFeed)
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if (typeof checked === 'boolean') {
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// Note: I’d like to be able to only add the space between the check and
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// the value, but unfortunately github does not support empty list-items
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// with a checkbox :(
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value =
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leftSquareBracket +
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(checked ? lowercaseX : space) +
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rightSquareBracket +
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space +
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value
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}
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if (style === '1' || (style === 'mixed' && value.indexOf(lineFeed) === -1)) {
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indent = marker.length + 1
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spacing = space
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} else {
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indent = ceil((marker.length + 1) / tabSize) * tabSize
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spacing = repeat(space, indent - marker.length)
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}
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return value
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? marker + spacing + pad(value, indent / tabSize).slice(indent)
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: marker
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}
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