regexQuote -- escape special characters in regular expressions

Synopsis

• Usage:

  regexQuote s

• Inputs:
  • s, a string,
• Outputs:
  • a string, obtained from s by escaping all of the characters that have special meanings in regular expressions (\, ^, $, ., |, ?, *, +, (, ), [, ], {, }) with a \.

Description

i1 : match("2+2", "2+2")

o1 = false

i2 : regexQuote "2+2"

o2 = 2\+2

i3 : match(oo, "2+2")

o3 = true

See also

• regular expressions -- syntax for regular expressions
• regex -- evaluate a regular expression search
• match -- regular expression matching