Regex to match only two specific words, e.g. Yes or No -


my attempt is:

^yes|^no|^$

but when use this, words other "yes" , "no" matched

how fix it?

i've been testing regex using this online regex tester.

try this:

^(?:yes|no)$

in vbscript, this:

dim myregexp, foundmatch set myregexp = new regexp myregexp.pattern = "^(?:yes|no)$" foundmatch = myregexp.test(subjectstring)

what problem?

you had alternation 3 options:

  • ^yes matches yes @ beginning of string, match yes in yes, man...
  • ^no matches no @ beginning of string, match no in no way!
  • ^$ matches empty string

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