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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>
28 lines
853 B
Go
28 lines
853 B
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package charset
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// EscapeStatus represents the findings of the unicode escaper
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type EscapeStatus struct {
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Escaped bool
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HasError bool
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HasBadRunes bool
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HasInvisible bool
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HasAmbiguous bool
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}
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// Or combines two EscapeStatus structs into one representing the conjunction of the two
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func (status *EscapeStatus) Or(other *EscapeStatus) *EscapeStatus {
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st := status
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if status == nil {
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st = &EscapeStatus{}
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}
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st.Escaped = st.Escaped || other.Escaped
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st.HasError = st.HasError || other.HasError
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st.HasBadRunes = st.HasBadRunes || other.HasBadRunes
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st.HasAmbiguous = st.HasAmbiguous || other.HasAmbiguous
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st.HasInvisible = st.HasInvisible || other.HasInvisible
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return st
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}
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