The fourth bird questions

The fourth bird answers

• RegExp: If-Clause for capturing group possible?
• Matching a word as a group in regular expressions
• Regex to extract (austrian) street housenumber/stairs/floor/door
• Find occurrences with regex and then only remove first character in matched expression
• How to find substrings flanked by a specific character and replace with text of the same length in R?
• Regex: finding words that end with the same letter the next word begins with
• RegEx-Stylish - Excluding some pages
• Remove trailing special characters from string
• Notepad++ Search for and replace Underscore Characters in "GUIDs"
• Regex that gets the last set of numbers from a string