[title-to-header] --myst-title-to-header="yes"
.
---
title: "The title *nested syntax*"
---

# Other header
.
<document source="<string>">
    <docinfo>
        <field classes="title">
            <field_name>
                title
            <field_body>
                <paragraph>
                    <literal>
                        The title *nested syntax*
    <section ids="the-title-nested-syntax" names="the\ title\ nested\ syntax">
        <title>
            The title
            <emphasis>
                nested syntax
    <section ids="other-header" names="other\ header">
        <title>
            Other header
.

[linkify] --myst-enable-extensions=linkify
.
www.example.com
.
<document source="<string>">
    <paragraph>
        <reference refuri="http://www.example.com">
            www.example.com
.

[gfm-strikethrough] --myst-gfm-only="yes"
.
~~strike~~
.
<document source="<string>">
    <paragraph>
        <system_message level="2" line="1" source="<string>" type="WARNING">
            <paragraph>
                Strikethrough is currently only supported in HTML output [myst.strikethrough]
        <raw format="html" xml:space="preserve">
            <s>
        strike
        <raw format="html" xml:space="preserve">
            </s>

<string>:1: (WARNING/2) Strikethrough is currently only supported in HTML output [myst.strikethrough]
.

[gfm-disallowed-html] --myst-gfm-only="yes"
.
<strong> <title> <style> <em>

<blockquote>
  <xmp> is disallowed.  <XMP> is also disallowed.
</blockquote>
.
<document source="<string>">
    <paragraph>
        <raw format="html" xml:space="preserve">
            <strong>

        <raw format="html" xml:space="preserve">
            &lt;title>

        <raw format="html" xml:space="preserve">
            &lt;style>

        <raw format="html" xml:space="preserve">
            <em>
    <raw format="html" xml:space="preserve">
        <blockquote>
          &lt;xmp> is disallowed.  &lt;XMP> is also disallowed.
        </blockquote>
.

[gfm-autolink] --myst-gfm-only="yes"
.
www.commonmark.org

Visit www.commonmark.org/help for more information.

www.google.com/search?q=Markup+(business)

www.google.com/search?q=Markup+(business)))

(www.google.com/search?q=Markup+(business))

(www.google.com/search?q=Markup+(business)

www.google.com/search?q=(business))+ok

www.google.com/search?q=commonmark&hl=en

www.google.com/search?q=commonmark&hl;

www.commonmark.org/he<lp
.
<document source="<string>">
    <paragraph>
        <reference refuri="http://www.commonmark.org">
            www.commonmark.org
    <paragraph>
        Visit
        <reference refuri="http://www.commonmark.org/help">
            www.commonmark.org/help
         for more information.
    <paragraph>
        <reference refuri="http://www.google.com/search?q=Markup+(business)">
            www.google.com/search?q=Markup+(business)
    <paragraph>
        <reference refuri="http://www.google.com/search?q=Markup+(business)">
            www.google.com/search?q=Markup+(business)
        ))
    <paragraph>
        (
        <reference refuri="http://www.google.com/search?q=Markup+(business)">
            www.google.com/search?q=Markup+(business)
        )
    <paragraph>
        (
        <reference refuri="http://www.google.com/search?q=Markup+(business)">
            www.google.com/search?q=Markup+(business)
    <paragraph>
        <reference refuri="http://www.google.com/search?q=(business)">
            www.google.com/search?q=(business)
        )+ok
    <paragraph>
        <reference refuri="http://www.google.com/search?q=commonmark&amp;hl=en">
            www.google.com/search?q=commonmark&hl=en
    <paragraph>
        <reference refuri="http://www.google.com/search?q=commonmark&amp;hl">
            www.google.com/search?q=commonmark&hl
        ;
    <paragraph>
        <reference refuri="http://www.commonmark.org/he">
            www.commonmark.org/he
        <lp
.

[attrs_image] --myst-enable-extensions=attrs_image
.
![a](b){#id .a width="100%" align=center height=20px}{.b}
.
<document source="<string>">
    <paragraph>
        <image align="center" alt="a" classes="a b" height="20px" ids="id" names="id" uri="b" width="100%">
.

[attrs_image_warnings] --myst-enable-extensions=attrs_image
.
![a](b){width=1x height=2x align=other }
.
<document source="<string>">
    <paragraph>
        <system_message level="2" line="1" source="<string>" type="WARNING">
            <paragraph>
                Invalid width value for image: '1x' [myst.image]
        <system_message level="2" line="1" source="<string>" type="WARNING">
            <paragraph>
                Invalid height value for image: '2x' [myst.image]
        <system_message level="2" line="1" source="<string>" type="WARNING">
            <paragraph>
                Invalid align value for image: 'other' [myst.image]
        <image alt="a" uri="b">

<string>:1: (WARNING/2) Invalid width value for image: '1x' [myst.image]
<string>:1: (WARNING/2) Invalid height value for image: '2x' [myst.image]
<string>:1: (WARNING/2) Invalid align value for image: 'other' [myst.image]
.