2020-03-04 23:26:01 -08:00
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---
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title: efuns / strings / strlen
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---
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2023-11-25 09:50:24 -08:00
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# strwidth
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2020-03-04 23:26:01 -08:00
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### NAME
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strwidth() - returns the display width of a string
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### SYNOPSIS
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int strwidth( string str );
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### DESCRIPTION
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strwidth() returns the number of columns to display string 'str'.
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2022-09-02 21:48:01 -04:00
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The driver uses rules defined in https://www.unicode.org/reports/tr11/tr11-36.html
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to calcuate character width.
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Control characters have no width. Wide characters, including emojis are two
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columns wide. This rule is also used by sprintf() to layout strings.
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2020-03-04 23:26:01 -08:00
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### SEE ALSO
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strlen()
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