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Add warning for BIDI characters in page renders and in diffs (#17562)
Fix #17514 Given the comments I've adjusted this somewhat. The numbers of characters detected are increased and include things like the use of U+300 to make à instead of à and non-breaking spaces. There is a button which can be used to escape the content to show it. Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Gwyneth Morgan <gwymor@tilde.club> Co-authored-by: silverwind <me@silverwind.io> Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
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@@ -300,10 +300,11 @@ func LFSFileGet(ctx *context.Context) {
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rd := charset.ToUTF8WithFallbackReader(io.MultiReader(bytes.NewReader(buf), dataRc))
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// Building code view blocks with line number on server side.
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fileContent, _ := io.ReadAll(rd)
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escapedContent := &bytes.Buffer{}
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ctx.Data["EscapeStatus"], _ = charset.EscapeControlReader(rd, escapedContent)
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var output bytes.Buffer
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lines := strings.Split(string(fileContent), "\n")
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lines := strings.Split(escapedContent.String(), "\n")
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//Remove blank line at the end of file
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if len(lines) > 0 && lines[len(lines)-1] == "" {
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lines = lines[:len(lines)-1]
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