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Merge pull request #513 from gradha/pr_extends_align

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Extends align proc with default padding parameter.
This commit is contained in:
Araq
2013-07-07 16:01:51 -07:00
parent 54df6a30c5 65b899030d
commit f841447c75
1 changed files with 14 additions and 6 deletions
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20
lib/pure/strutils.nim
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@@ -440,16 +440,23 @@ proc repeatStr*(count: int, s: string): string {.noSideEffect,
result = newStringOfCap(count*s.len)
for i in 0..count-1: result.add(s)
proc align*(s: string, count: int): string {.
proc align*(s: string, count: int, padding = ' '): string {.
noSideEffect, rtl, extern: "nsuAlignString".} =
## Aligns a string `s` with spaces, so that is of length `count`. 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.
## Aligns a string `s` with `padding`, so that is of length `count`.
## `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. Example:
##
## .. code-block:: nimrod
## assert align("abc", 4) == " abc"
## assert align("a", 0) == "a"
## assert align("1232", 6) == " 1232"
## assert align("1232", 6, '#') == "##1232"
if s.len < count:
result = newString(count)
var spaces = count - s.len
for i in 0..spaces-1: result[i] = ' '
for i in 0..spaces-1: result[i] = padding
for i in spaces..count-1: result[i] = s[i-spaces]
else:
result = s
@@ -1211,6 +1218,7 @@ when isMainModule:
doAssert align("abc", 4) == " abc"
doAssert align("a", 0) == "a"
doAssert align("1232", 6) == " 1232"
doAssert align("1232", 6, '#') == "##1232"
echo wordWrap(""" this is a long text -- muchlongerthan10chars and here
it goes""", 10, false)
doAssert formatBiggestFloat(0.00000000001, ffDecimal, 11) == "0.00000000001"