It’s not pretty, and as a result, regular expressions can become very messy looking and difficult to grasp. However, they are very powerful. Here are some examples of regular expressions in actions: ...

For example, the regular expression “abc” matches the strings “abc”, “abcde”, or “yzabc” because each of the strings contains the regular expression. No wild cards are necessary. You can also use ...

The I2A2 reflector DBM ignores case in alphabetic characters when it matches a regular expression to the names it knows. Formal Regular Expression Rules. These are the formal rules for forming basic ...

Regular expressions are like power tools: ... you've effectively used a regular expression composed only of the most basic pieces: literals. In a RegEx pattern, a literal is a ... for example, which ...

Regular expressions (both basic and extended), in fact, are said to be greedy—they try to match as many characters as possible. The result of the script is written to standard output and can be ...