V2EX zero-width

Zero-Width

释义 Definition

zero-width(形容词):零宽度的;指在排版或计算机文本处理中不占据可见宽度/不产生可见间距的字符或标记(如 zero-width space 零宽空格)。在正则表达式中也可引申为“零宽断言”(不消耗字符的位置判断)。

发音 Pronunciation (IPA)

/zr wdθ/(英式常见)
/ziro wdθ/(美式常见)

例句 Examples

A zero-width space can help a long word wrap correctly.
零宽空格可以帮助一个很长的单词正确换行。

In Unicode text processing, zero-width characters may affect searching and sorting even though they are invisible.
在 Unicode 文本处理中,零宽字符虽然不可见,但可能影响搜索与排序。

词源 Etymology

zero(“零”)+ width(“宽度”)组合而成的技术性复合词,用来描述“在视觉排版上不占宽度”的字符/标记;该用法随着计算机排版、Unicode 与正则表达式等领域的发展而普及。

相关词 Related Words

文学与文献中的用例 Literary / Notable Works

  • The Unicode Standard(《Unicode 标准》):讨论零宽字符(如 ZWSP、ZWJ、ZWNJ)的定义与用途。
  • Friedl, Mastering Regular Expressions(《精通正则表达式》):涉及“零宽”概念(如零宽断言)在模式匹配中的作用。
  • Goyvaerts & Levithan, Regular Expressions Cookbook(《正则表达式大全》):在实用案例中提到零宽相关技巧与边界匹配。
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