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CICA 1995 May
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UTIL
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MSWSRC35
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LOGO.H
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C/C++ Source or Header
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1993-09-27
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420 lines
/*
* logo.h logo header file dvb
*
* Copyright (C) 1989 The Regents of the University of California
* This Software may be copied and distributed for educational,
* research, and not for profit purposes provided that this
* copyright and statement are included in all such copies.
*
*/
/* #define ecma /* for European extended character set using parity bit */
/* #define unix /* This should be done automatically by gcc! */
/* #define ultrix /* no usleep */
#ifdef THINK_C
#define mac
#endif
#ifdef __TURBOC__
#define ibm
#endif
#ifdef __ZTC__
#define ibm
#endif
#ifdef unix
#ifndef NOGRAPH
#define x_window /* turn this off for no graphics */
#endif
#endif
#ifdef vax
#define bsd
#endif
#ifdef sun
#define bsd
#endif
/* #define SYSV */ /* turn this on for inferior AT&T brand Unix */
#include <stdio.h>
#include <string.h>
#include <signal.h>
#ifndef mips
#include <stdlib.h>
#else
#include <sys/types.h>
#include <malloc.h>
extern char *getenv();
#endif
#ifdef ibm
#include <dos.h>
#endif
#ifdef mac
#define check_throwing (check_mac_stop() || stopping_flag == THROWING)
#else
#ifdef ibm
#define check_throwing (check_ibm_stop() || stopping_flag == THROWING)
#else
#define check_throwing (stopping_flag == THROWING)
#endif
#endif
typedef enum {wrapmode, fencemode, windowmode} mode_type;
#define WORDSIZE 32 /* bits per int */
#define NIL (NODE *) 0
#define UNBOUND Unbound
#define UNDEFINED Unbound
#define END_OF_LIST (NODE *) 2
#define HASH_LEN 1021 /* a prime number */
#define SEG_SIZE 1000 /* 1 for debugging internal leaks */
//#define MAX_PHYS_LINE 5000
//#define GCMAX 8192
#define MAX_NUMBER 50 /* max number of digits in a float */
#define MAX_BUFFER_SIZE 256
#define PREFIX_PRIORITY 2
#define MACRO_PRIORITY 1
#define TAIL_PRIORITY 0
typedef short NODETYPES;
/* Note that some of these values are used twice; they must be
* distinguishable by the other bits used with them. */
#define NT_TREE (NODETYPES)0100000
#define NT_EMPTY (NODETYPES)040000
#define NT_AGGR (NODETYPES)020000
#define NT_LIST (NODETYPES)010000
#define NT_RUNP (NODETYPES)004000
#define NT_ARRAY (NODETYPES)002000
#define NT_WORD (NODETYPES)001000
#define NT_NUMBER (NODETYPES)000400
#define NT_FLOAT (NODETYPES)000200
#define NT_CONT (NODETYPES)000200
#define NT_PRIM (NODETYPES)000100
#define NT_INFIX (NODETYPES)000040
#define NT_LINE (NODETYPES)000040
#define NT_VBAR (NODETYPES)000040
#define NT_STRING (NODETYPES)000020
#define NT_BACKSL (NODETYPES)000010
#define NT_PUNCT (NODETYPES)000004
#define NT_TAILFORM (NODETYPES)000004
#define NT_COLON (NODETYPES)000002
#define NT_MACRO (NODETYPES)000002
#define NT_CASEOBJ (NODETYPES)000001
#define PNIL (NODETYPES)(NT_EMPTY|NT_AGGR|NT_LIST)
#define PUNBOUND (NODETYPES)0
#define CONS (NODETYPES)(NT_AGGR|NT_LIST)
#define STRING (NODETYPES)(NT_WORD|NT_STRING)
#define INT (NODETYPES)(NT_WORD|NT_NUMBER)
#define FLOAT (NODETYPES)(NT_WORD|NT_NUMBER|NT_FLOAT)
#define PRIM (NODETYPES)(NT_PRIM)
#define MACRO (NODETYPES)(NT_PRIM|NT_MACRO)
#define TAILFORM (NODETYPES)(NT_PRIM|NT_TAILFORM)
#define CASEOBJ (NODETYPES)(NT_WORD|NT_CASEOBJ)
#define INFIX (NODETYPES)(NT_PRIM|NT_INFIX)
#define TREE (NODETYPES)(NT_AGGR|NT_LIST|NT_TREE)
#define RUN_PARSE (NODETYPES)(NT_AGGR|NT_LIST|NT_RUNP)
#define QUOTE (NODETYPES)(NT_WORD|NT_PUNCT)
#define COLON (NODETYPES)(NT_WORD|NT_PUNCT|NT_COLON)
#define BACKSLASH_STRING (NODETYPES)(NT_WORD|NT_STRING|NT_BACKSL)
#define VBAR_STRING (NODETYPES)(NT_WORD|NT_STRING|NT_BACKSL|NT_VBAR)
#define ARRAY (NODETYPES)(NT_AGGR|NT_ARRAY)
#define LINE (NODETYPES)(NT_LINE|NT_LIST|NT_AGGR)
#define CONT (NODETYPES)(NT_CONT|NT_LIST)
#define aggregate(nd) (nodetype(nd) & NT_AGGR)
#define is_cont(nd) (nodetype(nd) == CONT)
#define is_list(nd) (nodetype(nd) & NT_LIST)
#define is_tree(nd) (nodetype(nd) & NT_TREE)
#define is_string(nd) (nodetype(nd) & NT_STRING)
#define is_number(nd) (nodetype(nd) & NT_NUMBER)
#define is_prim(nd) (nodetype(nd) & NT_PRIM)
#define is_word(nd) (nodetype(nd) & NT_WORD)
#define runparsed(nd) (nodetype(nd) & NT_RUNP)
#define backslashed(nd) (nodetype(nd) & NT_BACKSL)
#define is_tailform(nd) (nodetype(nd) == TAILFORM)
typedef enum { FATAL, OUT_OF_MEM, STACK_OVERFLOW, TURTLE_OUT_OF_BOUNDS,
BAD_DATA_UNREC, DIDNT_OUTPUT, NOT_ENOUGH, BAD_DATA, TOO_MUCH,
DK_WHAT, PAREN_MISMATCH, NO_VALUE, UNEXPECTED_PAREN, DK_HOW,
NO_CATCH_TAG, ALREADY_DEFINED, STOP_ERROR, ALREADY_DRIBBLING,
FILE_ERROR, IF_WARNING, SHADOW_WARN, USER_ERR, IS_PRIM,
NOT_INSIDE, DK_HOW_UNREC, NO_TEST, UNEXPECTED_BRACKET,
UNEXPECTED_BRACE, BAD_GRAPH_INIT, ERR_MACRO,
DK_WHAT_UP, AT_TOPLEVEL, APPLY_BAD_DATA} ERR_TYPES;
typedef int BOOLEAN;
#define FALSE 0
#define TRUE 1
#define even_p(x) !(x & 0x1)
#define FIXNUM long
#define FLONUM double
#define MAXINT 0x7fffffffL
#define SAFEINT 0x00003fff /* safe to multiply w/o overflow */
typedef struct logo_node {
NODETYPES node_type;
/* char gc_flags; */
short ref_count;
union {
struct {
struct logo_node *ncar;
struct logo_node *ncdr;
struct logo_node *nobj; /* used only for oblist */
} ncons;
struct {
char *nstring_ptr;
char *nstring_head;
int nstring_len;
} nstring;
struct {
struct logo_node * (*nprim_fun) ();
short npriority;
short nmin_args;
short ndef_args;
short nmax_args;
} nprim;
FIXNUM nint;
FLONUM nfloat;
struct {
int narray_dim;
int narray_origin;
struct logo_node **narray_data;
} narray;
} nunion;
} NODE;
#define settype(node, type) ((node)->node_type = (type))
#define getrefcnt(node) ((node)->ref_count)
#define setrefcnt(node,val) ((node)->ref_count = (val))
#define increfcnt(node) (((node)->ref_count)++)
#define decrefcnt(node) (--((node)->ref_count))
#define n_car nunion.ncons.ncar
#define n_cdr nunion.ncons.ncdr
#define n_obj nunion.ncons.nobj
#define getobject(node) ((node)->n_obj)
#define car(node) ((node)->n_car)
#define cdr(node) ((node)->n_cdr)
#define caar(node) ((node)->n_car->n_car)
#define cadr(node) ((node)->n_cdr->n_car)
#define cdar(node) ((node)->n_car->n_cdr)
#define cddr(node) ((node)->n_cdr->n_cdr)
#define n_str nunion.nstring.nstring_ptr
#define n_len nunion.nstring.nstring_len
#define n_head nunion.nstring.nstring_head
#define getstrptr(node) ((node)->n_str)
#define getstrlen(node) ((node)->n_len)
#define getstrhead(node) ((node)->n_head)
#define setstrptr(node,ptr) ((node)->n_str = (ptr))
#define setstrlen(node,len) ((node)->n_len = (len))
#define setstrhead(node,ptr) ((node)->n_head = (ptr))
#define getstrrefcnt(sh) (*sh)
#define setstrrefcnt(sh, v) (*sh = (v))
#define incstrrefcnt(sh) ((*sh)++)
#define decstrrefcnt(sh) (--(*sh))
#define n_int nunion.nint
#define getint(node) ((node)->n_int)
#define setint(node,num) ((node)->n_int = (num))
#define n_float nunion.nfloat
#define getfloat(node) ((node)->n_float)
#define setfloat(node,num) ((node)->n_float = (num))
#define n_pfun nunion.nprim.nprim_fun
#define n_ppri nunion.nprim.npriority
#define n_pmin nunion.nprim.nmin_args
#define n_pdef nunion.nprim.ndef_args
#define n_pmax nunion.nprim.nmax_args
#define getprimfun(node) ((node)->n_pfun)
#define setprimfun(node,fun) ((node)->n_pfun = (fun))
#define getprimmin(node) ((node)->n_pmin)
#define setprimmin(node,num) ((node)->n_pmin = (num))
#define getprimmax(node) ((node)->n_pmax)
#define setprimmax(node,num) ((node)->n_pmax = (num))
#define getprimdflt(node) ((node)->n_pdef)
#define setprimdflt(node,num) ((node)->n_pdef = (num))
#define getprimpri(node) ((node)->n_ppri)
#define setprimpri(node,num) ((node)->n_ppri = (num))
/* Special value for pmin, means that it's
* OK if primitive name on line by itself even though defltargs=1 (ED, CO) */
#define OK_NO_ARG 01000
#define n_dim nunion.narray.narray_dim
#define n_org nunion.narray.narray_origin
#define n_array nunion.narray.narray_data
#define getarrdim(node) ((node)->n_dim)
#define getarrorg(node) ((node)->n_org)
#define getarrptr(node) ((node)->n_array)
#define setarrdim(node,len) ((node)->n_dim = (len))
#define setarrorg(node,org) ((node)->n_org = (org))
#define setarrptr(node,ptr) ((node)->n_array = (ptr))
#ifdef ecma
#define clearparity(ch) ecma_clear(ch)
#define setparity(ch) ecma_set(ch)
#define getparity(ch) ecma_get(ch)
#else
#define clearparity(ch) (ch & 0x7f)
#define setparity(ch) (ch | 0x80)
#define getparity(ch) (ch & 0x80)
#endif
typedef enum { RUN, STOP, OUTPUT, THROWING, MACRO_RETURN } CTRLTYPE;
struct segment {
struct segment *next;
struct logo_node nodes[SEG_SIZE]; };
#define NOT_THROWING (stopping_flag != THROWING)
#define RUNNING (stopping_flag == RUN)
#define STOPPING (stopping_flag == STOP)
#define canonical__object(o) car(o)
#define procnode__object(o) cadr(o)
#define setprocnode__object(o,v) setcar(cdr(o), v)
#define valnode__object(o) cadr(cdr(o))
#define setvalnode__object(o,v) setcar(cddr(o), v)
#define plist__object(o) cadr(cddr(o))
#define setplist__object(o,v) setcar(cdr(cddr(o)), v)
#define obflags__object(o) car(cddr(cddr(o)))
#define caselistptr__object(o) cddr(cddr(o))
#define caselist__object(o) cdr(cddr(cddr(o)))
#define strnode__caseobj(co) car(co)
#define object__caseobj(c) cdr(c)
#define procnode__caseobj(c) procnode__object(object__caseobj(c))
#define setprocnode__caseobj(c,v) setprocnode__object(object__caseobj(c),v)
#define valnode__caseobj(c) valnode__object(object__caseobj(c))
#define setvalnode__caseobj(c,v) setvalnode__object(object__caseobj(c),v)
#define plist__caseobj(c) plist__object(object__caseobj(c))
#define setplist__caseobj(c,v) setplist__object(object__caseobj(c),v)
#define obflags__caseobj(c) obflags__object(object__caseobj(c))
#define text__procnode(p) car(p)
#define formals__procnode(p) caar(p)
#define bodylist__procnode(p) cdar(p)
#define dfltargs__procnode(p) cadr(cddr(p))
#define minargs__procnode(p) car(cddr(p))
#define maxargs__procnode(p) car(cddr(cddr(p)))
#define bodywords__procnode(p) cadr(p)
#define setbodywords__procnode(p,v) setcar(cdr(p),v)
#define unparsed__runparse(rn) rn
#define parsed__runparse(rn) getobject(rn)
#define node__quote(q) car(q)
#define node__colon(c) car(c)
#define valnode__colon(c) valnode__caseobj(node__colon(c))
#define unparsed__tree(t) t
#define treepair__tree(t) getobject(t)
#define settreepair__tree(t, v) setobject(t, v)
#define generation__tree(t) car(treepair__tree(t))
#define setgeneration__tree(t, g) setcar(treepair__tree(t), g)
#define tree__tree(t) cdr(treepair__tree(t))
#define settree__tree(t, v) settreepair__tree(t, cons(the_generation, v))
#define unparsed__line(l) getobject(l)
#define tree__line(l) l
#define cont__cont(c) (int)car(c)
#define val__cont(c) cdr(c)
/* Object flags. Ones settable by users via bury_helper must come in threes
* for proc, val, plist even if meaningless for some of those. */
#define PROC_BURIED 01
#define VAL_BURIED 02
#define PLIST_BURIED 04
#define PROC_TRACED 010
#define VAL_TRACED 020
#define PLIST_TRACED 040
#define PROC_STEPPED 0100
#define VAL_STEPPED 0200
#define PLIST_STEPPED 0400
#define PROC_MACRO 01000
#define setflag__caseobj(c,f) ((obflags__caseobj(c))->n_int |= (f))
#define clearflag__caseobj(c,f) ((obflags__caseobj(c))->n_int &= ~(f))
#define flag__caseobj(c,f) (int)((obflags__caseobj(c))->n_int & (f))
#define flag__object(o,f) (int)((obflags__object(o))->n_int & (f))
#define is_macro(c) (flag__caseobj(c, PROC_MACRO))
#define reref(o1, o2) _reref(o1, o2)
#define ref(o) if (o != NIL) increfcnt(o)
#define vref(o) ((o != NIL) ? ((increfcnt(o)) , o) : NIL)
#define deref(o) if (o != NIL && decrefcnt(o) == 0) \
gc(o)
#define gcref(o) if (o != NIL && getrefcnt(o) == 0) \
gc(o)
#define push(obj, stack) spush(obj, &stack)
#define pop(stack) spop(&stack)
/* evaluator labels, needed by macros in other files */
#define do_list(x) \
x(all_done) \
x(begin_line) x(end_line) x(begin_seq) x(begin_apply) \
x(eval_sequence_continue) \
x(accumulate_arg) x(compound_apply_continue) \
x(set_args_continue) x(macro_return) \
x(qm_continue) \
x(runresult_continuation) x(runresult_followup) \
x(repeat_continuation) x(repeat_followup) \
x(catch_continuation) x(catch_followup)
#define do_enum(x) x,
enum labels {
do_list(do_enum)
NUM_TOKENS
};
#include "ibmterm.h"
#include "logox.h"
/* types of graphics moves that can be recorded */
#define LINEXY 1
#define MOVEXY 2
#define LABEL 3
#define SETPENVIS 4
#define SETPENMODE 5
#define SETPENCOLOR 6
#define SETPENSIZE 7
#define SETPENPATTERN 8
#define XOR_PUT 199
#define NO_MODE 0
#define TO_MODE 1
#define LIST_MODE 2
#define PAUSE_MODE 3
#define ScreenSz 0.75 /* Default,proportion of screen size */
#define CommandSz (1.0-ScreenSz) /* Default,proportion of command size */
#define TRUE 1 /* Define some handy constants */
#define FALSE 0 /* Define some handy constants */
#define RADCVT 0.01745329251994 /* Convert to radians */
#define WININISIZ 40
#define MaxNumFonts 64 /* Maximum number of fonts to be */
/* displayed in FontDemo */
#define MaxBitCuts 1024 /* Max number of bitmaps */
#define MAX_TIMERS 32