116 lines
3.9 KiB
C
116 lines
3.9 KiB
C
/*
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* Copyright (c) 2002 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the XFree86 Project shall
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* not be used in advertising or otherwise to promote the sale, use or other
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* dealings in this Software without prior written authorization from the
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* XFree86 Project.
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*
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* Author: Paulo César Pereira de Andrade
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*/
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/* $XFree86: xc/programs/xedit/lisp/io.h,v 1.9tsi Exp $ */
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#ifndef Lisp_io_h
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#define Lisp_io_h
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#include "lisp/private.h"
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#define FILE_READ 0x01
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#define FILE_WRITE 0x02
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#define FILE_IO 0x03
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#define FILE_APPEND 0x06 /* append mode, write bit also set */
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#define FILE_BUFFERED 0x08 /* force buffered mode */
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#define FILE_UNBUFFERED 0x10 /* force unbuffered mode */
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#define FILE_BINARY 0x20
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/*
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* Types
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*/
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typedef ssize_t (*io_write_fn)(int, const void*, size_t);
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struct _LispFile {
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char *buffer;
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int line; /* input line number */
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int column; /* output column number */
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int descriptor;
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int length; /* number of bytes used */
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int offset; /* read/write offset */
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int unget : 8; /* unread char */
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unsigned int readable : 1;
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unsigned int writable : 1;
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unsigned int regular : 1; /* regular file */
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unsigned int buffered : 1;
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unsigned int available : 1; /* unget field holds a char */
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unsigned int nonblock : 1; /* in nonblock mode */
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unsigned int binary : 1; /* if set, don't calculate column/line-number */
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io_write_fn io_write;
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};
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struct _LispString {
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char *string;
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int line; /* input line number */
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int column; /* output column number */
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int space; /* number of bytes alocated */
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int length; /* number of bytes used */
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int input; /* input offset, for read operations */
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int output; /* output offset, for write operations */
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unsigned int fixed : 1; /* if set, don't try to reallocate string */
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unsigned int binary : 1; /* if set, don't calculate column/line-number */
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};
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/*
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* Prototypes
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*/
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/* higher level functions */
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int LispGet(void);
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int LispUnget(int);
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void LispPushInput(LispObj*);
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void LispPopInput(LispObj*);
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/* functions that read/write using the LispFile structure */
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LispFile *LispFdopen(int, int);
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LispFile *LispFopen(const char*, int);
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void LispFclose(LispFile*);
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int LispFflush(LispFile*);
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int LispFungetc(LispFile*, int);
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int LispFgetc(LispFile*);
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int LispFputc(LispFile*, int);
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char *LispFgets(LispFile*, char*, int);
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int LispFputs(LispFile*, const char*);
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int LispFread(LispFile*, void*, int);
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int LispFwrite(LispFile*, const void*, int);
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int LispRename(const char*, const char*);
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int LispUnlink(const char*);
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/* io wrappers */
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io_write_fn LispSetFileWrite(LispFile*, io_write_fn);
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/* functions that read/write using the LispString structure */
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int LispSgetc(LispString*);
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int LispSputc(LispString*, int);
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int LispSputs(LispString*, const char*);
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int LispSwrite(LispString*, const void*, int);
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const char *LispGetSstring(LispString*, int*);
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#endif /* Lisp_io_h */
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