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Allow custom highlight mapping beyond file extensions #15808

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Merged
merged 4 commits into from
May 13, 2021
Merged

Allow custom highlight mapping beyond file extensions #15808

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e37ceb4
Allow custom highlight mapping beyond file extensions
mlpo May 9, 2021
8b21e09
Merge branch 'main' into highlight-patch
mlpo May 10, 2021
ae5616b
Merge branch 'main' into highlight-patch
lafriks May 13, 2021
c97f014
Merge branch 'main' into highlight-patch
mlpo May 13, 2021
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Allow custom highlight mapping beyond file extensions
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@mlpo
mlpo committed May 9, 2021
commit e37ceb498213ac7359fe5ef17757bf7cd0f6aca5
27 changes: 17 additions & 10 deletions modules/highlight/highlight.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import (
"code.gitea.io/gitea/modules/analyze"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"github.com/alecthomas/chroma"
"github.com/alecthomas/chroma/formatters/html"
"github.com/alecthomas/chroma/lexers"
"github.com/alecthomas/chroma/styles"
Expand Down Expand Up @@ -66,14 +67,17 @@ func Code(fileName, code string) string {
htmlbuf := bytes.Buffer{}
htmlw := bufio.NewWriter(&htmlbuf)

var lexer chroma.Lexer
if val, ok := highlightMapping[filepath.Ext(fileName)]; ok {
//change file name to one with mapped extension so we look that up instead
fileName = "mapped." + val
//use mapped value to find lexer
lexer = lexers.Get(val)
}

lexer := lexers.Match(fileName)
if lexer == nil {
lexer = lexers.Fallback
lexer = lexers.Match(fileName)
if lexer == nil {
lexer = lexers.Fallback
}
}

iterator, err := lexer.Tokenise(nil, string(code))
Expand Down Expand Up @@ -114,17 +118,20 @@ func File(numLines int, fileName string, code []byte) map[int]string {
htmlbuf := bytes.Buffer{}
htmlw := bufio.NewWriter(&htmlbuf)

var lexer chroma.Lexer
if val, ok := highlightMapping[filepath.Ext(fileName)]; ok {
fileName = "test." + val
lexer = lexers.Get(val)
}

language := analyze.GetCodeLanguage(fileName, code)

lexer := lexers.Get(language)
if lexer == nil {
lexer = lexers.Match(fileName)
language := analyze.GetCodeLanguage(fileName, code)

lexer = lexers.Get(language)
if lexer == nil {
lexer = lexers.Fallback
lexer = lexers.Match(fileName)
if lexer == nil {
lexer = lexers.Fallback
}
}
}

Expand Down