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Switch Unicode Escaping to a VSCode-like system (#19990)

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This PR rewrites the invisible unicode detection algorithm to more
closely match that of the Monaco editor on the system. It provides a
technique for detecting ambiguous characters and relaxes the detection
of combining marks.

Control characters are in addition detected as invisible in this
implementation whereas they are not on monaco but this is related to
font issues.

Close #19913

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath
2022-08-13 19:32:34 +01:00
committed by GitHub
parent 11dc6df5be
commit 99efa02edf
29 changed files with 2107 additions and 371 deletions
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30
templates/repo/diff/section_split.tmpl
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@@ -21,15 +21,17 @@
{{svg "octicon-fold"}}
</a>
{{end}}
</td>{{$inlineDiff := $section.GetComputedInlineDiffFor $line}}
<td class="lines-escape lines-escape-old">{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.locale.Tr "repo.line_unicode"}}"></a>{{end}}</td>
<td colspan="6" class="lines-code lines-code-old "><code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.root.locale.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</span></td>
</td>{{$inlineDiff := $section.GetComputedInlineDiffFor $line $.root.locale}}
<td class="lines-escape lines-escape-old">{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff "locale" $.locale}}"></a>{{end}}</td>
<td colspan="6" class="lines-code lines-code-old ">{{/*
*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
*/}}</td>
{{else if and (eq .GetType 3) $hasmatch}}{{/* DEL */}}
{{$match := index $section.Lines $line.Match}}
{{- $leftDiff := ""}}{{if $line.LeftIdx}}{{$leftDiff = $section.GetComputedInlineDiffFor $line}}{{end}}
{{- $rightDiff := ""}}{{if $match.RightIdx}}{{$rightDiff = $section.GetComputedInlineDiffFor $match}}{{end}}
{{- $leftDiff := ""}}{{if $line.LeftIdx}}{{$leftDiff = $section.GetComputedInlineDiffFor $line $.root.locale}}{{end}}
{{- $rightDiff := ""}}{{if $match.RightIdx}}{{$rightDiff = $section.GetComputedInlineDiffFor $match $.root.locale}}{{end}}
<td class="lines-num lines-num-old del-code" data-line-num="{{$line.LeftIdx}}"><span rel="diff-{{$file.NameHash}}L{{$line.LeftIdx}}"></span></td>
<td class="lines-escape del-code lines-escape-old">{{if $line.LeftIdx}}{{if $leftDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.locale.Tr "repo.line_unicode"}}"></a>{{end}}{{end}}</td>
<td class="lines-escape del-code lines-escape-old">{{if $line.LeftIdx}}{{if $leftDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $leftDiff "locale" $.locale}}"></a>{{end}}{{end}}</td>
<td class="lines-type-marker lines-type-marker-old del-code"><span class="mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
<td class="lines-code lines-code-old halfwidth del-code">{{/*
*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles}}{{/*
@@ -38,13 +40,13 @@
*/}}</a>{{/*
*/}}{{end}}{{/*
*/}}{{if $line.LeftIdx}}{{/*
*/}}<code {{if $leftDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.root.locale.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$leftDiff.Content}}</code>{{/*
*/}}{{template "repo/diff/section_code" dict "diff" $leftDiff "locale" $.root.locale}}{{/*
*/}}{{else}}{{/*
*/}}<code class="code-inner"></code>{{/*
*/}}{{end}}{{/*
*/}}</td>
<td class="lines-num lines-num-new add-code" data-line-num="{{if $match.RightIdx}}{{$match.RightIdx}}{{end}}"><span rel="{{if $match.RightIdx}}diff-{{$file.NameHash}}R{{$match.RightIdx}}{{end}}"></span></td>
<td class="lines-escape add-code lines-escape-new">{{if $match.RightIdx}}{{if $rightDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.locale.Tr "repo.line_unicode"}}"></a>{{end}}{{end}}</td>
<td class="lines-escape add-code lines-escape-new">{{if $match.RightIdx}}{{if $rightDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $rightDiff "locale" $.locale}}"></a>{{end}}{{end}}</td>
<td class="lines-type-marker lines-type-marker-new add-code">{{if $match.RightIdx}}<span class="mono" data-type-marker="{{$match.GetLineTypeMarker}}"></span>{{end}}</td>
<td class="lines-code lines-code-new halfwidth add-code">{{/*
*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles}}{{/*
@@ -53,15 +55,15 @@
*/}}</a>{{/*
*/}}{{end}}{{/*
*/}}{{if $match.RightIdx}}{{/*
*/}}<code {{if $rightDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.root.locale.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$rightDiff.Content}}</code>{{/*
*/}}{{template "repo/diff/section_code" dict "diff" $rightDiff "locale" $.root.locale}}{{/*
*/}}{{else}}{{/*
*/}}<code class="code-inner"></code>{{/*
*/}}{{end}}{{/*
*/}}</td>
{{else}}
{{$inlineDiff := $section.GetComputedInlineDiffFor $line}}
{{$inlineDiff := $section.GetComputedInlineDiffFor $line $.root.locale}}
<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{$file.NameHash}}L{{$line.LeftIdx}}{{end}}"></span></td>
<td class="lines-escape lines-escape-old">{{if $line.LeftIdx}}{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.locale.Tr "repo.line_unicode"}}"></a>{{end}}{{end}}</td>
<td class="lines-escape lines-escape-old">{{if $line.LeftIdx}}{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff "locale" $.locale}}"></a>{{end}}{{end}}</td>
<td class="lines-type-marker lines-type-marker-old">{{if $line.LeftIdx}}<span class="mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span>{{end}}</td>
<td class="lines-code lines-code-old halfwidth">{{/*
*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles (not (eq .GetType 2))}}{{/*
@@ -70,13 +72,13 @@
*/}}</a>{{/*
*/}}{{end}}{{/*
*/}}{{if $line.LeftIdx}}{{/*
*/}}<code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.root.locale.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code>{{/*
*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
*/}}{{else}}{{/*
*/}}<code class="code-inner"></code>{{/*
*/}}{{end}}{{/*
*/}}</td>
<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$file.NameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
<td class="lines-escape lines-escape-new">{{if $line.RightIdx}}{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{$.locale.Tr "repo.line_unicode"}}"></a>{{end}}{{end}}</td>
<td class="lines-escape lines-escape-new">{{if $line.RightIdx}}{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff "locale" $.locale}}"></a>{{end}}{{end}}</td>
<td class="lines-type-marker lines-type-marker-new">{{if $line.RightIdx}}<span class="mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span>{{end}}</td>
<td class="lines-code lines-code-new halfwidth">{{/*
*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles (not (eq .GetType 3))}}{{/*
@@ -85,7 +87,7 @@
*/}}</a>{{/*
*/}}{{end}}{{/*
*/}}{{if $line.RightIdx}}{{/*
*/}}<code {{if $inlineDiff.EscapeStatus.Escaped}}class="code-inner has-escaped" title="{{$.root.locale.Tr "repo.line_unicode"}}"{{else}}class="code-inner"{{end}}>{{$inlineDiff.Content}}</code>{{/*
*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
*/}}{{else}}{{/*
*/}}<code class="code-inner"></code>{{/*
*/}}{{end}}{{/*