31 lines
910 B
Go
31 lines
910 B
Go
package ascii
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import (
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"github.com/segmentio/asm/internal/unsafebytes"
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)
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// EqualFold is a version of bytes.EqualFold designed to work on ASCII input
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// instead of UTF-8.
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//
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// When the program has guarantees that the input is composed of ASCII
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// characters only, it allows for greater optimizations.
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func EqualFold(a, b []byte) bool {
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return EqualFoldString(unsafebytes.String(a), unsafebytes.String(b))
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}
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func HasPrefixFold(s, prefix []byte) bool {
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return len(s) >= len(prefix) && EqualFold(s[:len(prefix)], prefix)
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}
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func HasSuffixFold(s, suffix []byte) bool {
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return len(s) >= len(suffix) && EqualFold(s[len(s)-len(suffix):], suffix)
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}
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func HasPrefixFoldString(s, prefix string) bool {
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return len(s) >= len(prefix) && EqualFoldString(s[:len(prefix)], prefix)
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}
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func HasSuffixFoldString(s, suffix string) bool {
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return len(s) >= len(suffix) && EqualFoldString(s[len(s)-len(suffix):], suffix)
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}
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