正则表达式用于符号之间的单词

Question

Does someone knows how to make a regex that looks for a word between two instances of the same symbol?

For example, in "gaag a gaga $fafaga$afa" , I need "fafaga", between the two "$" symbols.

Answer 1

You can use following regex if you just want one match :

\$[^$]*\$

Note : this will works for all matches if you use modifier g to make it global.

see the Demo

and following for all matches :

\$.*?\$

And if you don't want $ you can use capture grouping and return the group after match :

\$([^$]*)\$

Answer 2

I need "fafaga", between the two "$" symbols

You can use lookahead and lookbehind for extracting exactly the content between $ 's

(?<=\$)([^$]*)(?=\$)

See DEMO

Note: lookbehinds are not supported by all regex engines