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39 lines
837 B
JavaScript
39 lines
837 B
JavaScript
'use strict'
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module.exports = emphasis
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var underscore = '_'
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var asterisk = '*'
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// Stringify an `emphasis`.
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//
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// The marker used is configurable through `emphasis`, which defaults to an
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// underscore (`'_'`) but also accepts an asterisk (`'*'`):
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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 `pedantic` mode, text which itself contains an underscore will cause the
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// marker to default to an asterisk instead:
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//
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// ```markdown
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// *foo_bar*
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// ```
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function emphasis(node) {
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var marker = this.options.emphasis
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var content = this.all(node).join('')
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// When in pedantic mode, prevent using underscore as the marker when there
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// are underscores in the content.
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if (
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this.options.pedantic &&
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marker === underscore &&
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content.indexOf(marker) !== -1
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) {
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marker = asterisk
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}
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return marker + content + marker
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}
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