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Full-file syntax highlighting for diff pages (#33766)

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Fix #33358, fix #21970

This adds a step in the `GitDiffForRender` that does syntax highlighting for the
entire file and then only references lines from that syntax highlighted
code. This allows things like multi-line comments to be syntax
highlighted correctly.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
Dustin Firebaugh
2025-03-08 23:51:58 -05:00
committed by GitHub
parent 6f13331754
commit 3f1f808b9e
14 changed files with 361 additions and 323 deletions
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3
modules/highlight/highlight.go
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@@ -11,6 +11,7 @@ import (
gohtml "html"
"html/template"
"io"
"path"
"path/filepath"
"strings"
"sync"
@@ -83,7 +84,7 @@ func Code(fileName, language, code string) (output template.HTML, lexerName stri
}
if lexer == nil {
if val, ok := highlightMapping[filepath.Ext(fileName)]; ok {
if val, ok := highlightMapping[path.Ext(fileName)]; ok {
// use mapped value to find lexer
lexer = lexers.Get(val)
}