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/* $XConsortium: util.h,v 1.3 92/03/26 16:42:29 eswu Exp $ */
/* Copyright International Business Machines,Corp. 1991
* All Rights Reserved
*
* License to use, copy, modify, and distribute this software
* and its documentation for any purpose and without fee is
* hereby granted, provided that the above copyright notice
* appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation,
* and that the name of IBM not be used in advertising or
* publicity pertaining to distribution of the software without
* specific, written prior permission.
*
* IBM PROVIDES THIS SOFTWARE "AS IS", WITHOUT ANY WARRANTIES
* OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT
* LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF
* THIRD PARTY RIGHTS. THE ENTIRE RISK AS TO THE QUALITY AND
* PERFORMANCE OF THE SOFTWARE, INCLUDING ANY DUTY TO SUPPORT
* OR MAINTAIN, BELONGS TO THE LICENSEE. SHOULD ANY PORTION OF
* THE SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM) ASSUMES
* THE ENTIRE COST OF ALL SERVICING, REPAIR AND CORRECTION. IN
* NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#ifndef UTIL_H
#define UTIL_H
#include "types.h"
#ifndef KPATHSEA
#ifndef boolean
typedef int boolean;
#endif
#endif
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
/***================================================================***/
/* Portable definitions for 2's complement machines.
* NOTE: These really should be based on PostScript types,
* for example, sizeof(ps_integer), or sizeof(ps_unsigned)
*/
#define MAX_INT32 (~(uint32_t)(0))
/* This code is portable, assuming K&R C and 2's complement arithmetic */
#define MAX_INTEGER \
((int32_t)((((uint32_t) 1)<<(sizeof(uint32_t)*8-1))-1))
#define MIN_INTEGER ((-MAX_INTEGER)-1)
#define MAX_ARRAY_CNT (65535)
#define MAX_DICT_CNT (65535)
#define MAX_STRING_LEN (65535)
#define MAX_NAME_LEN (128)
/* this is the size of memory allocated for reading fonts */
#define VM_SIZE (50*1024)
/***================================================================***/
#ifndef MIN
#define MIN(a,b) (((a)<(b)) ? a : b )
#endif
/***================================================================***/
/* Routines for managing virtual memory */
/***================================================================***/
extern boolean vm_init(void);
extern int32_t vm_free;
extern int32_t vm_size;
extern char *vm_next;
extern char *vm_alloc(unsigned int bytes);
/***================================================================***/
/* Macros for managing virtual memory */
/***================================================================***/
#define vm_next_byte() (vm_next)
#define vm_free_bytes() (vm_free)
#define vm_avail(B) (B <= vm_free)
/***================================================================***/
/* Types of PostScript objects */
/***================================================================***/
#define OBJ_INTEGER (0)
#define OBJ_REAL (1)
#define OBJ_BOOLEAN (2)
#define OBJ_ARRAY (3)
#define OBJ_STRING (4)
#define OBJ_NAME (5)
#define OBJ_FILE (6)
#define OBJ_ENCODING (7)
/***================================================================***/
/* Value of PostScript objects */
/***================================================================***/
typedef union ps_value {
char *valueP; /* value pointer for unspecified type */
int value; /* value for unspecified type */
int integer; /* when type is OBJ_INTEGER */
float real; /* when type is OBJ_REAL */
int boolean; /* when type is OBJ_BOOLEAN */
struct ps_obj *arrayP; /* when type is OBJ_ARRAY */
unsigned char *stringP; /* when type is OBJ_STRING */
const char *nameP; /* when type is OBJ_NAME */
FILE *fileP; /* when type is OBJ_FILE */
} psvalue;
/***================================================================***/
/* Definition of a PostScript object */
/***================================================================***/
typedef struct ps_obj {
char type;
char unused;
unsigned short len;
union ps_value data;
} psobj;
/***================================================================***/
/* Definition of a PostScript Dictionary Entry */
/***================================================================***/
typedef struct ps_dict {
psobj key;
psobj value;
} psdict;
/***================================================================***/
/* Macros for testing type of PostScript objects */
/***================================================================***/
#define objIsInteger(o) ((o).type == OBJ_INTEGER)
#define objIsReal(o) ((o).type == OBJ_REAL)
#define objIsBoolean(o) ((o).type == OBJ_BOOLEAN)
#define objIsArray(o) ((o).type == OBJ_ARRAY)
#define objIsString(o) ((o).type == OBJ_STRING)
#define objIsName(o) ((o).type == OBJ_NAME)
#define objIsFile(o) ((o).type == OBJ_FILE)
/***================================================================***/
/* Macros for setting type of PostScript objects */
/***================================================================***/
#define objSetInteger(o) ((o).type = OBJ_INTEGER)
#define objSetReal(o) ((o).type = OBJ_REAL)
#define objSetBoolean(o) ((o).type = OBJ_BOOLEAN)
#define objSetArray(o) ((o).type = OBJ_ARRAY)
#define objSetString(o) ((o).type = OBJ_STRING)
#define objSetName(o) ((o).type = OBJ_NAME)
#define objSetFile(o) ((o).type = OBJ_FILE)
/***================================================================***/
/* Macros for testing type of PostScript objects (pointer access) */
/***================================================================***/
#define objPIsInteger(o) ((o)->type == OBJ_INTEGER)
#define objPIsReal(o) ((o)->type == OBJ_REAL)
#define objPIsBoolean(o) ((o)->type == OBJ_BOOLEAN)
#define objPIsArray(o) ((o)->type == OBJ_ARRAY)
#define objPIsString(o) ((o)->type == OBJ_STRING)
#define objPIsName(o) ((o)->type == OBJ_NAME)
#define objPIsFile(o) ((o)->type == OBJ_FILE)
/***================================================================***/
/* Macros for setting type of PostScript objects (pointer access) */
/***================================================================***/
#define objPSetInteger(o) ((o)->type = OBJ_INTEGER)
#define objPSetReal(o) ((o)->type = OBJ_REAL)
#define objPSetBoolean(o) ((o)->type = OBJ_BOOLEAN)
#define objPSetArray(o) ((o)->type = OBJ_ARRAY)
#define objPSetString(o) ((o)->type = OBJ_STRING)
#define objPSetName(o) ((o)->type = OBJ_NAME)
#define objPSetFile(o) ((o)->type = OBJ_FILE)
extern void objFormatInteger(psobj *,int);
extern void objFormatReal(psobj *, float);
extern void objFormatBoolean(psobj *, boolean);
extern void objFormatEncoding(psobj *, int, psobj *);
extern void objFormatArray(psobj *, int, psobj *);
extern void objFormatString(psobj *, int, char *);
extern void objFormatName(psobj *, int, const char *);
extern void objFormatFile(psobj *, FILE *);
extern void *Xalloc(size_t);
extern void Xfree(void *);
extern intptr_t MakeAtom(const char *, unsigned int, int);
extern void QueryFontLib(char *, const char *, void *, int *);
/*
* -------------------------------------------------------------------------
* Globals shared -- (everyone else KEEP YOUR MITTS OFF THEM!)
* -------------------------------------------------------------------------
*/
/* These variables are set by the caller */
extern char *tokenStartP; /* Pointer to token buffer in VM */
extern char *tokenMaxP; /* Pointer to end of VM we may use + 1 */
/* These variables are set by P_TOKEN */
extern int tokenLength; /* Characters in token */
extern boolean tokenTooLong; /* Token too long for space available */
extern int tokenType; /* Type of token identified */
extern psvalue tokenValue; /* Token value */
#endif
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