forked from sneak/util
clawbot
daaea4e10f
TruncateString returns at most the requested number of characters from the start of a string, counting characters rather than bytes so a multi-byte character is never cut in half. Comes with a doc comment and table-driven tests. (closes #5) Model: opus-5
22 lines
517 B
Go
22 lines
517 B
Go
package util
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// TruncateString returns at most max characters from the start of s. It counts
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// characters rather than bytes, so a multi-byte character is never cut in half
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// and the result is always valid text. A max of zero or less returns an empty
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// string, and a string already at or below the limit is returned unchanged.
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func TruncateString(s string, max int) string {
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if max <= 0 {
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return ""
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}
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count := 0
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for offset := range s {
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if count == max {
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return s[:offset]
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}
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count++
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}
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return s
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}
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