mirror of
https://github.com/golang/go
synced 2024-11-25 08:37:57 -07:00
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
|
|
Inferno libkern/getfields.c
|
|
http://code.google.com/p/inferno-os/source/browse/libkern/getfields.c
|
|
|
|
Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
|
|
Revisions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com). All rights reserved.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
#include <u.h>
|
|
#include <libc.h>
|
|
|
|
int
|
|
getfields(char *str, char **args, int max, int mflag, char *set)
|
|
{
|
|
Rune r;
|
|
int nr, intok, narg;
|
|
|
|
if(max <= 0)
|
|
return 0;
|
|
|
|
narg = 0;
|
|
args[narg] = str;
|
|
if(!mflag)
|
|
narg++;
|
|
intok = 0;
|
|
for(;; str += nr) {
|
|
nr = chartorune(&r, str);
|
|
if(r == 0)
|
|
break;
|
|
if(utfrune(set, r)) {
|
|
if(narg >= max)
|
|
break;
|
|
*str = 0;
|
|
intok = 0;
|
|
args[narg] = str + nr;
|
|
if(!mflag)
|
|
narg++;
|
|
} else {
|
|
if(!intok && mflag)
|
|
narg++;
|
|
intok = 1;
|
|
}
|
|
}
|
|
return narg;
|
|
}
|