For example, I have a string "aout\>>>out\\nt\\<foo<<bar" I'm having trouble finding regex that would find words:

• "aout\>"

• "out\\nt\\<foo"

• "bar"

I am trying to exclude any '<' or '>' or '|' characters that are not escaped with '\'.

Right now, I have [^ \t\n] to give me all "words" without <>|, but I want to exclude the part of the string that has the expression (?:(?<!\\)[<>|]) (any non-negated <>|). Is there a way to combine these two expressions?

CodePudding user response：

You can use

(?:\\[<>|]|[^\s<>|]) 

See the regex demo. Details:

• (?: - start of a non-capturing group:
  • \\[<>|] - a \ char and then a <, > or | char
  • | - or
  • [^\s<>|] - any char other than a whitespace, <, > and |
• ) - end of the non-capturing group, one or more repetitions.