Regular Expressions 101

Negative Lookbehind(?<![一-龠]{3})

Character Class[一-龠]{3}

{3}matches exactly 3 characters from the set below:

一-龠one character from 一 (19968₁₀) to 龠 (40864₁₀)

特許the literal text 特許

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?<![一-龠]{3})特許

New

東京特許許可局
東京特許許諾
北海道特許許可局
神奈川特許許可局
さいたま特許許可局