GitHub Copilot
31 lines
786 B
Go
31 lines
786 B
Go
package webterm
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import (
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"bytes"
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"regexp"
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)
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var (
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daResponsePattern = regexp.MustCompile(`\x1b\[[?>=][\d;]*c`)
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daPartialPattern = regexp.MustCompile(`\x1b(?:\[(?:[?>=][\d;]*)?)?$`)
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)
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func FilterDASequences(data []byte, escapeBuffer []byte) ([]byte, []byte) {
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merged := append(append([]byte{}, escapeBuffer...), data...)
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if len(merged) == 0 {
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return nil, nil
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}
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filtered := daResponsePattern.ReplaceAll(merged, nil)
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if len(filtered) == 0 {
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return nil, nil
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}
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match := daPartialPattern.FindIndex(filtered)
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if match == nil {
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return filtered, nil
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}
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if match[0] == len(filtered)-1 || bytes.HasPrefix(filtered[match[0]:], []byte("\x1b[")) || bytes.Equal(filtered[match[0]:], []byte("\x1b")) {
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return filtered[:match[0]], filtered[match[0]:]
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}
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return filtered, nil
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}
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