Matches and obtains a sub-regular expression within the parentheses. If there is no value within the parentheses, the string is equivalent to a null string. If a pattern string has only (), it can match any string. If the right parenthesis in a pattern string has no matching left parenthe...
E.g. [\p{L}-[\p{IsBasicLatin}]] matches any letter that is not an English letter. Conclusion As said, the regular expression let you parse strings, or complex replace operations. It is a powerful tool for text processing and is of practical use to extend your ABAP capabilities. I ...
Multi-character escapeEquivalent regular expressionDescription \s [#x20\t\n\r] Space, tab, newline, or return character. \S [^\s] Any character except a space, tab, newline, or return character. \i none The set of characters allowed as the first character in an XML name. \I [^\i...
Any character which is not an element of the metacharacter set for the type of regular expression under consideration. For example, when we are discussing basic regular expressions, | is a char; when we are discussing extended regular expressions, | is a metachar. digit Any of the characters...
A regular expression is basically a sequence of characters that defines a search pattern, which is used for pattern matching. Regular expressions vary in complexity, but once you understand the basics of how they are constructed, you can decipher or create any regular expression. String Literals ...
Match any character in a range of characters [a-f] be[n-t] matches "bet" in "between", "ben" in "beneath", and "bes" in "beside", but finds no matches in "below" Capture and implicitly number the expression contained within parenthesis () ([a-z])X\1 matches "aXa" and "bXb...
The character vector 'Joh?n\w*' is an example of a regular expression. It defines a pattern that starts with the letters Jo, is optionally followed by the letter h (indicated by 'h?'), is then followed by the letter n, and ends with any number of word characters, that is, characte...
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RegExp.lastParenProperty. Returns the last parenthesized submatch from any regular expression search, if any. RegExp.leftContextProperty. Returns the characters from the beginning of a searched string up to the position before the beginning of the last match. ...
For example, the terminology rule regular expression, "/a.b/", matches all text where there is an "a" followed by any single character, followed by a "b", as in, "a5b". * The asterisk matches the preceding pattern or character zero or more times. For example, "/fo*/" matches ...