Vim找到模式，除非它匹配

Question

I have a space delimited set of hex values and want to find /[0-9a-f]\\{2\\} unless the value is 00 . For example, if the buffer is

00 00 00 00 18 00 00 00

the pattern should match the 18 but not the white space or the 00 .

Answer 1

This can be done with the following regular expression:

\x\{2}\(00\)\@<!

Explanation:

• \\x : hex digit: [0-9A-Fa-f]
• \\{2} : matches two of the preceding atom
• \\(00\\) : an atom containing 00
• \\@<! nothing, requires NO match behind

For more information, see:

• :help pattern.txt