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# Strike-Through
With the flag `MD_FLAG_STRIKETHROUGH`, MD4C enables extension for recognition
of strike-through spans.
Strike-through text is any text wrapped in one or two tildes (`~`).
```````````````````````````````` example
~Hi~ Hello, world!
.
<p><del>Hi</del> Hello, world!</p>
````````````````````````````````
If the length of the opener and closer doesn't match, the strike-through is
not recognized.
```````````````````````````````` example
This ~text~~ is curious.
.
<p>This ~text~~ is curious.</p>
````````````````````````````````
Too long tilde sequence won't be recognized:
```````````````````````````````` example
foo ~~~bar~~~
.
<p>foo ~~~bar~~~</p>
````````````````````````````````
Also note the markers cannot open a strike-through span if they are followed
with a whitespace; and similarly, then cannot close the span if they are
preceded with a whitespace:
```````````````````````````````` example
~foo ~bar
.
<p>~foo ~bar</p>
````````````````````````````````
As with regular emphasis delimiters, a new paragraph will cause the cessation
of parsing a strike-through:
```````````````````````````````` example
This ~~has a
new paragraph~~.
.
<p>This ~~has a</p>
<p>new paragraph~~.</p>
````````````````````````````````
## GitHub Issues
### [Issue 69](https://github.com/mity/md4c/issues/69)
```````````````````````````````` example
~`foo`~
.
<p><del><code>foo</code></del></p>
````````````````````````````````
```````````````````````````````` example
~*foo*~
.
<p><del><em>foo</em></del></p>
````````````````````````````````
```````````````````````````````` example
*~foo~*
.
<p><em><del>foo</del></em></p>
````````````````````````````````
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