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readFile raises EIO instead of returning nil; added system.writeFile

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This commit is contained in:
Araq 2011-06-16 10:47:44 +02:00
commit 04f9c2585a
6 changed files with 40 additions and 48 deletions
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12
lib/impure/re.nim
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@ -342,18 +342,10 @@ proc parallelReplace*(s: string, subs: openArray[
proc transformFile*(infile, outfile: string,
subs: openArray[tuple[pattern: TRegEx, repl: string]]) =
## reads in the file `infile`, performs a parallel replacement (calls
## `parallelReplace`) and writes back to `outfile`. Calls ``quit`` if an
## `parallelReplace`) and writes back to `outfile`. Raises ``EIO`` if an
## error occurs. This is supposed to be used for quick scripting.
var x = readFile(infile)
if not isNil(x):
var f: TFile
if open(f, outfile, fmWrite):
write(f, x.parallelReplace(subs))
close(f)
else:
quit("cannot open for writing: " & outfile)
else:
quit("cannot open for reading: " & infile)
writeFile(outfile, x.parallelReplace(subs))
iterator split*(s: string, sep: TRegEx): string =
## Splits the string `s` into substrings.