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Diffstat (limited to 'lisp/io.h')
-rw-r--r-- | lisp/io.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/lisp/io.h b/lisp/io.h new file mode 100644 index 0000000..eb5edc6 --- /dev/null +++ b/lisp/io.h @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2002 by The XFree86 Project, Inc. + * + * 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 XFREE86 PROJECT 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. + * + * Except as contained in this notice, the name of the XFree86 Project shall + * not be used in advertising or otherwise to promote the sale, use or other + * dealings in this Software without prior written authorization from the + * XFree86 Project. + * + * Author: Paulo César Pereira de Andrade + */ + +/* $XFree86: xc/programs/xedit/lisp/io.h,v 1.8 2002/12/06 03:25:27 paulo Exp $ */ + +#ifndef Lisp_io_h +#define Lisp_io_h + +#include "private.h" + +#define FILE_READ 0x01 +#define FILE_WRITE 0x02 +#define FILE_IO 0x03 +#define FILE_APPEND 0x06 /* append mode, write bit also set */ +#define FILE_BUFFERED 0x08 /* force buffered mode */ +#define FILE_UNBUFFERED 0x10 /* force unbuffered mode */ +#define FILE_BINARY 0x20 + +/* + * Types + */ +typedef ssize_t (*io_write_fn)(int, const void*, size_t); + +struct _LispFile { + char *buffer; + int line; /* input line number */ + int column; /* output column number */ + int descriptor; + int length; /* number of bytes used */ + int offset; /* read/write offset */ + int unget : 8; /* unread char */ + int readable : 1; + int writable : 1; + int regular : 1; /* regular file */ + int buffered : 1; + int available : 1; /* unget field holds a char */ + int nonblock : 1; /* in nonblock mode */ + int binary : 1; /* if set, don't calculate column/line-number */ + io_write_fn io_write; +}; + +struct _LispString { + char *string; + int line; /* input line number */ + int column; /* output column number */ + int space; /* number of bytes alocated */ + int length; /* number of bytes used */ + int input; /* input offset, for read operations */ + int output; /* output offset, for write operations */ + int fixed : 1; /* if set, don't try to reallocate string */ + int binary : 1; /* if set, don't calculate column/line-number */ +}; + +/* + * Prototypes + */ + /* higher level functions */ +int LispGet(void); +int LispUnget(int); +void LispPushInput(LispObj*); +void LispPopInput(LispObj*); + + /* functions that read/write using the LispFile structure */ +LispFile *LispFdopen(int, int); +LispFile *LispFopen(char*, int); +void LispFclose(LispFile*); +int LispFflush(LispFile*); +int LispFungetc(LispFile*, int); +int LispFgetc(LispFile*); +int LispFputc(LispFile*, int); +char *LispFgets(LispFile*, char*, int); +int LispFputs(LispFile*, char*); +int LispFread(LispFile*, void*, int); +int LispFwrite(LispFile*, void*, int); +int LispRename(char*, char*); +int LispUnlink(char*); + + /* io wrappers */ +io_write_fn LispSetFileWrite(LispFile*, io_write_fn); + + /* functions that read/write using the LispString structure */ +int LispSgetc(LispString*); +int LispSputc(LispString*, int); +int LispSputs(LispString*, char*); +int LispSwrite(LispString*, void*, int); + +char *LispGetSstring(LispString*, int*); + +#endif /* Lisp_io_h */ |