What are the metacharacters used in regular expressions of Python?
Metacharacters
| Character | Description | Try it |
|---|---|---|
| . | Any character (except newline character) | Try it » |
| ^ | Starts with | Try it » |
| $ | Ends with | Try it » |
| * | Zero or more occurrences | Try it » |
What are metacharacters in Perl?
Basic Perl Metacharacters
| Metacharacter | Description |
|---|---|
| \s | matches any whitespace character, including space, tab, form feed, and so on, and is equivalent to [\f\n\r\t\v]. |
| \S | matches any character that is not a whitespace character [^\f\n\r\t\v]. |
| \t | matches a tab character. |
| specifies that the next character is uppercase. |
What are metacharacters in Java?
Metacharacters are characters which are having special meanings in Java regular expression. Following metacharacters are suppored in Java Regular expressions.
What are shell metacharacters?
Metacharacters are special characters that are used to represent something other than themselves . Shell metacharacters can be used to group commands together, to abbreviate filenames and pathnames, to redirect and pipe input/output, to place commands in the background, and so forth.
How do you use metacharacters in Java regex?
Java Regex classes are present in java. util….Java Regex Metacharacters.
| Regular Expression | Description |
|---|---|
| \D | Any non-digit, short for [^0-9] |
| \s | Any whitespace character, short for [\t\n\f\r] |
| \S | Any non-whitespace character, short for [^\s] |
| \w | Any word character, short for [a-zA-Z_0-9] |