End-of-Line Trim
Level: Beginner 15–30 minConcepts: StringsAlgorithms
When editing text files often times one ends up putting extra spaces and tabs at the end of each line. Develop a simple algorithm to remove these extra characters. It shall take an input string and produce a right-trimmed output string.
Examples
| Input | Output |
|---|---|
| ”abc" | "abc" |
| "abc " | "abc" |
| "abc\t" | "abc" |
| " abc" | " abc” (does not remove beginning whitespace) |
| “ab\r\n cd \r\n" | "ab\r\ncd\r\n” (removes whitespace at end of second line) |
| “\r\n" | "\r\n” |
Hint
Be sure to handle both Windows \r\n and Unix line endings \n