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forgejo/modules/markup/markdown/util/text.go
Gusted da1c0f7f18 fix: enable multi-line math equations in wiki (#8424)
- When math equation support was added into Gitea it allowed for math equations to be typed over multiple lines via `\[ ... \]` and `$$ ... $$`. Specifically the former delimiters caused problems with legitimate markdown input to be seen as a math equation and therefore was disabled in e1a82a15d3.
- Enable this multi-line parsing for wiki as it's less likely to cause issues in the context of the wiki.
- It is hard to fix this issue in a proper way without investing a good amount of time in Goldmark as explained in https://codeberg.org/forgejo/forgejo/issues/6902#issuecomment-2845317
- Added unit test.
- Resolves forgejo/forgejo#6902

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8424
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>
Co-authored-by: Gusted <postmaster@gusted.xyz>
Co-committed-by: Gusted <postmaster@gusted.xyz>
2025-07-06 22:00:09 +02:00

32 lines
645 B
Go

// Copyright 2024 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: GPL-3.0-or-later
package util
import (
"bytes"
"github.com/yuin/goldmark/ast"
"github.com/yuin/goldmark/parser"
)
func textOfChildren(n ast.Node, src []byte, b *bytes.Buffer) {
for c := n.FirstChild(); c != nil; c = c.NextSibling() {
if t, ok := c.(*ast.Text); ok {
b.Write(t.Value(src))
} else {
textOfChildren(c, src, b)
}
}
}
func Text(n ast.Node, src []byte) []byte {
var b bytes.Buffer
textOfChildren(n, src, &b)
return b.Bytes()
}
var (
RenderContextKey = parser.NewContextKey()
RenderConfigKey = parser.NewContextKey()
)