diff options
| -rw-r--r-- | lib/pure/strutils.nim | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/lib/pure/strutils.nim b/lib/pure/strutils.nim index 20b2657f6..fb52a0cc0 100644 --- a/lib/pure/strutils.nim +++ b/lib/pure/strutils.nim @@ -1061,8 +1061,8 @@ proc align*(s: string, count: Natural, padding = ' '): string {. ## ## `padding` characters (by default spaces) are added before `s` resulting in ## right alignment. If ``s.len >= count``, no spaces are added and `s` is - ## returned unchanged. If you need to left align a string use the `repeatChar - ## proc <#repeatChar>`_. Example: + ## returned unchanged. If you need to left align a string use the `alignLeft + ## proc <#alignLeft>`_. Example: ## ## .. code-block:: nim ## assert align("abc", 4) == " abc" @@ -1077,6 +1077,28 @@ proc align*(s: string, count: Natural, padding = ' '): string {. else: result = s +proc alignLeft*(s: string, count: Natural, padding = ' '): string {.noSideEffect.} = + ## Left-Aligns a string `s` with `padding`, so that it is of length `count`. + ## + ## `padding` characters (by default spaces) are added after `s` resulting in + ## left alignment. If ``s.len >= count``, no spaces are added and `s` is + ## returned unchanged. If you need to right align a string use the `align + ## proc <#align>`_. Example: + ## + ## .. code-block:: nim + ## assert alignLeft("abc", 4) == "abc " + ## assert alignLeft("a", 0) == "a" + ## assert alignLeft("1232", 6) == "1232 " + ## assert alignLeft("1232", 6, '#') == "1232##" + if s.len < count: + result = newString(count) + for i in 0 ..< s.len: + result[i] = s[i] + for i in s.len ..< count: + result[i] = padding + else: + result = s + iterator tokenize*(s: string, seps: set[char] = Whitespace): tuple[ token: string, isSep: bool] = ## Tokenizes the string `s` into substrings. @@ -2272,6 +2294,11 @@ when isMainModule: doAssert align("1232", 6) == " 1232" doAssert align("1232", 6, '#') == "##1232" + doAssert alignLeft("abc", 4) == "abc " + doAssert alignLeft("a", 0) == "a" + doAssert alignLeft("1232", 6) == "1232 " + doAssert alignLeft("1232", 6, '#') == "1232##" + let inp = """ this is a long text -- muchlongerthan10chars and here it goes""" |