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51 lines
1.5 KiB
51 lines
1.5 KiB
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# Permissive E-mail Autolinks
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With the flag `MD_FLAG_PERMISSIVEEMAILAUTOLINKS`, MD4C enables more permissive
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recognition of e-mail addresses and transforms them to autolinks, even if they
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do not exactly follow the syntax of autolink as specified in CommonMark
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specification.
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This is standard CommonMark e-mail autolink:
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```````````````````````````````` example
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E-mail: <mailto:john.doe@gmail.com>
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.
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<p>E-mail: <a href="mailto:john.doe@gmail.com">mailto:john.doe@gmail.com</a></p>
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````````````````````````````````
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With the permissive autolinks enabled, this is sufficient:
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```````````````````````````````` example
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E-mail: john.doe@gmail.com
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.
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<p>E-mail: <a href="mailto:john.doe@gmail.com">john.doe@gmail.com</a></p>
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````````````````````````````````
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`+` can occur before the `@`, but not after.
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```````````````````````````````` example
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hello@mail+xyz.example isn't valid, but hello+xyz@mail.example is.
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.
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<p>hello@mail+xyz.example isn't valid, but <a href="mailto:hello+xyz@mail.example">hello+xyz@mail.example</a> is.</p>
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````````````````````````````````
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`.`, `-`, and `_` can occur on both sides of the `@`, but only `.` may occur at
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the end of the email address, in which case it will not be considered part of
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the address:
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```````````````````````````````` example
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a.b-c_d@a.b
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a.b-c_d@a.b.
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a.b-c_d@a.b-
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a.b-c_d@a.b_
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.
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<p><a href="mailto:a.b-c_d@a.b">a.b-c_d@a.b</a></p>
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<p><a href="mailto:a.b-c_d@a.b">a.b-c_d@a.b</a>.</p>
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<p>a.b-c_d@a.b-</p>
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<p>a.b-c_d@a.b_</p>
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````````````````````````````````
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