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7cc9fc4773
The parser state does not just necessarily include the position of the buffer, but make it possible to maintain additional state. Furthermore, add an explicit ability to push back a token. All of this might make it easier at some point in the future to keep track of horizontal position, although that will require lots of changes to the preprocessor. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2009 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* stdscan.h header file for stdscan.c
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*/
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#ifndef NASM_STDSCAN_H
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#define NASM_STDSCAN_H
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/* Standard scanner */
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struct stdscan_state;
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void stdscan_set(const struct stdscan_state *);
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const struct stdscan_state *stdscan_get(void);
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char *stdscan_tell(void);
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void stdscan_reset(char *buffer);
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int stdscan(void *pvt, struct tokenval *tv);
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void stdscan_pushback(const struct tokenval *tv);
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int nasm_token_hash(const char *token, struct tokenval *tv);
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void stdscan_cleanup(void);
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#endif
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