名称

strwidth() - 返回字符串的显示宽度

语法

int strwidth( string str );

描述

strwidth() 返回字符串 'str' 的显示宽度。

The driver uses rules defined in https://www.unicode.org/reports/tr11/tr11-36.html to calcuate character width.
Control characters has no width, Wide characters, including emojis are two column wide. This rule is also used by sprintf() to layout strings.

参考

strlen(3)
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