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[enh] isUpperAscii*, isLowerAscii* speedup execution by stopping

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iteration as soon as possible
This commit is contained in:
Zajcev Evgeny 2016-11-07 13:21:17 +03:00
commit b1a369d2fb
1 changed files with 6 additions and 4 deletions
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10
lib/pure/strutils.nim
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@ -179,9 +179,10 @@ proc isLowerAscii*(s: string): bool {.noSideEffect, procvar,
if s.len() == 0: if s.len() == 0:
return false return false
result = true
for c in s: for c in s:
result = c.isLowerAscii() and result if not c.isLowerAscii():
return false
true
proc isUpperAscii*(s: string): bool {.noSideEffect, procvar, proc isUpperAscii*(s: string): bool {.noSideEffect, procvar,
rtl, extern: "nsuIsUpperAsciiStr".}= rtl, extern: "nsuIsUpperAsciiStr".}=
@ -193,9 +194,10 @@ proc isUpperAscii*(s: string): bool {.noSideEffect, procvar,
if s.len() == 0: if s.len() == 0:
return false return false
result = true
for c in s: for c in s:
result = c.isUpperAscii() and result if not c.isUpperAscii():
return false
true
proc toLowerAscii*(c: char): char {.noSideEffect, procvar, proc toLowerAscii*(c: char): char {.noSideEffect, procvar,
rtl, extern: "nsuToLowerAsciiChar".} = rtl, extern: "nsuToLowerAsciiChar".} =