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[GITEA] Require Latex code to have a end sequence

- Currently the parser will look for `\[` and `$$` to detect when Latex
code starts, it will look for `\]` and `$$` respectively in order to
determine the end of the code. However if no end is found the parser
assumes the rest of the input is part of the Latex code.
- Adjust the parser's behavior to not allow the case to assume the rest
of the input is part of the Latex code and requires in order to
determine if some input is Latex code that the end sequence is also
specified.
- Example: `\[hello]` would no longer be detected as Latex code with
this patch.
- Added unit tests.
- Resolves https://codeberg.org/forgejo/forgejo/issues/1817

(cherry picked from commit 452aef1bb1)
(cherry picked from commit 8a857c24b0)
This commit is contained in:
Gusted 2023-11-26 20:43:51 +01:00 committed by Earl Warren
parent 0182cff12e
commit acd1456db9
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GPG key ID: 0579CB2928A78A00
2 changed files with 13 additions and 4 deletions

View file

@ -510,6 +510,18 @@ func TestMathBlock(t *testing.T) {
"$$a$$", "$$a$$",
`<pre class="code-block is-loading"><code class="chroma language-math display">a</code></pre>` + nl, `<pre class="code-block is-loading"><code class="chroma language-math display">a</code></pre>` + nl,
}, },
{
`\[a b\]`,
`<pre class="code-block is-loading"><code class="chroma language-math display">a b</code></pre>` + nl,
},
{
`\[a b]`,
`<p>[a b]</p>` + nl,
},
{
`$$a`,
`<p>$$a</p>` + nl,
},
} }
for _, test := range testcases { for _, test := range testcases {

View file

@ -55,10 +55,7 @@ func (b *blockParser) Open(parent ast.Node, reader text.Reader, pc parser.Contex
return node, parser.Close | parser.NoChildren return node, parser.Close | parser.NoChildren
} }
reader.Advance(segment.Len() - 1) return nil, parser.NoChildren
segment.Start += 2
node.Lines().Append(segment)
return node, parser.NoChildren
} }
// Continue parses the current line and returns a result of parsing. // Continue parses the current line and returns a result of parsing.