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Merge pull request #3143 from def-/readline-faster

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Improve performance of readLine by using fgets
This commit is contained in:
Andreas Rumpf 2015-08-21 21:30:27 +02:00
commit 2733c508ef
2 changed files with 36 additions and 60 deletions
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12
lib/system.nim
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@ -2635,17 +2635,17 @@ when not defined(JS): #and not defined(nimscript):
proc readLine*(f: File): TaintedString {.tags: [ReadIOEffect], benign.}
## reads a line of text from the file `f`. May throw an IO exception.
## A line of text may be delimited by ``CR``, ``LF`` or
## ``CRLF``. The newline character(s) are not part of the returned string.
## A line of text may be delimited by ``LF`` or ``CRLF``. The newline
## character(s) are not part of the returned string.
proc readLine*(f: File, line: var TaintedString): bool {.tags: [ReadIOEffect],
benign.}
## reads a line of text from the file `f` into `line`. `line` must not be
## ``nil``! May throw an IO exception.
## A line of text may be delimited by ``CR``, ``LF`` or
## ``CRLF``. The newline character(s) are not part of the returned string.
## Returns ``false`` if the end of the file has been reached, ``true``
## otherwise. If ``false`` is returned `line` contains no new data.
## A line of text may be delimited by ``LF`` or ``CRLF``. The newline
## character(s) are not part of the returned string. Returns ``false``
## if the end of the file has been reached, ``true`` otherwise. If
## ``false`` is returned `line` contains no new data.
proc writeLn*[Ty](f: File, x: varargs[Ty, `$`]) {.inline,
tags: [WriteIOEffect], benign, deprecated.}