221fa7d954
This change adds missing features: * %[ for pattern matching with a scanset. * %m for allocation of strings. * %p for pointers. * Field width for integers. The following features remain unimplemented, like with printf(3): * Floating point support. * Wide character support. * %n$ positional parameters. The code has been completely refactored to be much more maintainable. The implemented features should now be standards compliant. A large number of edge cases have been fixed. The vscanf_callback(3) function has been renamed to vcbscanf(3) and a new cbscanf(3) function has been added.
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/*
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* Copyright (c) 2012, 2013, 2014 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* stdio/vfscanf_unlocked.c
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* Input format conversion.
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*/
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#include <errno.h>
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#include <stdio.h>
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static int wrap_fgetc(void* fp)
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{
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return fgetc_unlocked((FILE*) fp);
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}
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static int wrap_ungetc(int c, void* fp)
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{
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return ungetc_unlocked(c, (FILE*) fp);
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}
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int vfscanf_unlocked(FILE* fp, const char* format, va_list ap)
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{
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if ( !(fp->flags & _FILE_READABLE) )
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return errno = EBADF, fp->flags |= _FILE_STATUS_ERROR, EOF;
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return vcbscanf(fp, wrap_fgetc, wrap_ungetc, format, ap);
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}
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