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Moved stripEscape to utils #786

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Merged
merged 2 commits into from
May 31, 2025
Merged

Moved stripEscape to utils #786

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d48bedf
Moved stripEscape to utils
noborus May 30, 2025
cd77364
Fix: Correct escape sequence and backspace removal regex
noborus May 30, 2025
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21 changes: 0 additions & 21 deletions oviewer/search.go
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Original file line number Diff line number Diff line change
Expand Up @@ -115,27 +115,6 @@ func (substr regexpWord) String() string {
return substr.word
}

// stripRegexpES is a regular expression that excludes escape sequences.
var stripRegexpES = regexp.MustCompile("(\x1b\\[[\\d;*]*m)|.\b")

// stripEscapeSequenceString strips if it contains escape sequences.
func stripEscapeSequenceString(src string) string {
if !strings.ContainsAny(src, "\x1b\b") {
return src
}
// Remove EscapeSequence.
return stripRegexpES.ReplaceAllString(src, "")
}

// stripEscapeSequence strips if it contains escape sequences.
func stripEscapeSequenceBytes(src []byte) []byte {
if !bytes.ContainsAny(src, "\x1b\b") {
return src
}
// Remove EscapeSequence.
return stripRegexpES.ReplaceAll(src, []byte(""))
}

// NewSearcher returns the Searcher interface suitable for the search term.
func NewSearcher(word string, searchReg *regexp.Regexp, caseSensitive bool, regexpSearch bool) Searcher {
if regexpSearch && word != regexp.QuoteMeta(word) {
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22 changes: 22 additions & 0 deletions oviewer/utils.go
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package oviewer

import (
"bytes"
"io"
"log"
"regexp"
Expand Down Expand Up @@ -94,3 +95,24 @@ func writeLine(w io.Writer, line []byte) {
log.Printf("%s:%s", line, err)
}
}

// stripEscapeSequenceString removes escape sequences and backspaces from a string.
// It is used to identify and remove these sequences from strings or byte slices.
var stripRegexpES = regexp.MustCompile("(\x1b\\[[\\d;*]*m)|.\\x08")

func stripEscapeSequenceString(src string) string {
if !strings.ContainsAny(src, "\x1b\\x08") {
return src
}
// Remove EscapeSequence.
return stripRegexpES.ReplaceAllString(src, "")
}

// stripEscapeSequence strips if it contains escape sequences.
func stripEscapeSequenceBytes(src []byte) []byte {
if !bytes.ContainsAny(src, "\x1b\x08") {
return src
}
// Remove EscapeSequence.
return stripRegexpES.ReplaceAll(src, []byte(""))
}
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