StringReplace

Usage

• StringReplace["string", s -> sp] or StringReplace["string", { -> , -> , ... }] replaces the string expressions by whenever they appear as substrings of "string".
• StringReplace["string", srules, n] does only the first n replacements.
• StringReplace[{, , ... }, srules] gives the list of results for each of the .

Notes

• Example: StringReplace["abbaabbaa", "ab"->"X"]

• The string expressions

can contain any of the objects specified in the notes for StringExpression.

• StringReplace goes through a string, testing substrings that start at each successive character position. On each substring, it tries in turn each of the transformation rules you have specified. If any of the rules apply, it replaces the substring, then continues to go through the string, starting at the character position after the end of the substring.

• If the

in the replacements

do not evaluate to strings, StringReplace will yield a StringExpression rather than an ordinary string.

• In replacements of the form

, the

are not evaluated until each time they are used.

• Setting the option IgnoreCase -> True makes StringReplace treat lower- and upper-case letters as equivalent.

• See Section 2.8.2.

• New in Version 2; modified in 5.1.

Further Examples