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#include "lie.h"
#define INITFIL "initfile"
object defaultgrp = NULL, grp;
bigint* one,* null,* minus_one;
intcel* bool_false,* bool_true;
objcel the_nothing,* nothing=&the_nothing;
static poly* create_basic_poly(poly **nulls, index r)
{
int i;
static boolean first = true;
poly *result = (poly*) NULL;
if (first)
{ for (i=0; i<NPOLY; i++) nulls[i]= (poly*) NULL; first = false; }
if (r<NPOLY && nulls[r]!=NULL) return nulls[r];
result = mkpoly(1,r); setsorted(result);
for (i=0; i<r; i++) result->elm[0][i] = 0;
if (r < NPOLY) { nulls[r]=result; setlonglife(result); }
return result;
}
poly *poly_one(index r)
{
static poly *ones[NPOLY];
poly* result=create_basic_poly(ones, r);
result->coef[0] = one;
return result;
}
poly *poly_null(index r)
{
static poly *zeros[NPOLY];
poly* result= create_basic_poly(zeros, r);
result->coef[0] = null;
return result;
}
static void makelink(Symblst a, int n)
{ int i; symblst new_a=(symblst)a; /* overlapping in memory */
for (i=0; i<n; ++i)
{ if (a[i].name!=NULL) new_a[i].a.name=match(a[i].name,false);
new_a[i].data.f=a[i].f;
if (a[i].arglst!=0) new_a[i].arglst=&new_a[i+a[i].arglst];
else new_a[i].arglst=NULL;
if (a[i].next!=0) new_a[i].next=&new_a[i+a[i].next];
else new_a[i].next=NULL;
}
}
static boolean eqrow_null(entry *a,index n)
{
index i=0;
while (i<n && *a++ == 0) i++;
return i==n;
}
boolean Mat_null(object a)
{
index i=0,
m=a->m.nrows,
n=a->m.ncols;
while (i < m && eqrow_null(*(a->m.elm+i),n))
i++;
if (i == m) return true;
return false;
}
boolean Vec_null(object a)
{
index i, n;
n=a->v.ncomp;
i=0;
while (i < n && *(a->v.compon + i) == 0L)
i++;
if (i == n) return true;
return false;
}
boolean Pol_null(object a)
{
index nrows=a->pl.nrows;
index i=0;
while (i <nrows && !a->pl.coef[i]->size) i++;
if (i == nrows) return true;
return false;
}
void init(void)
{ int ch;
info_depth.n = 0;
{ if (initfil[0]=='\0') strcpy(initfil, INITFIL);
strcpy(dirpath, infofil);
strcpy(learnfil, infofil);
strcpy(titlefil, infofil);
strcat(infofil,"INFO");
strcat(learnfil,"LEARN");
strcat(titlefil,"title");
strcpy(infoind, infofil);
strcpy(learnind, learnfil);
strcat(infoind,".ind");
strcat(learnind,".ind");
strcpy(monfil, "monfile");
}
{ init_scanner(); /* must store keywords first */
seq_name=match(".sequence",false);
if_name=match(".if",false);
assign_name=match(".assign",false);
assign_loc_name=match(".assign_loc",false);
dollar_name=match("$",false);
break_name=match("_break",false);
block_name=match("$block",false);
return_name=match("_return",false);
setdefault_name=match("_setdefault",false);
input_fname=name_tab[match("stdin",false)];
}
{ makelink(static1, nstatic1);
makelink(static2, nstatic2);
makelink(static3, nstatic3);
makelink(static4, nstatic4);
makelink(static5, nstatic5);
makelink(static6, nstatic6);
makelink(static7, nstatic7);
}
{ maxptrs = MAXPTRS_DFLT; initmem();
maxnodes = MAXNODES_DFLT; inittree();
}
{ one=entry2bigint(1); setlonglife(one);
null=entry2bigint(0); setlonglife(null);
minus_one=entry2bigint(-1); setlonglife(minus_one);
bool_false=mkintcel(0); setlonglife(bool_false);
bool_true=mkintcel(1); setlonglife(bool_true);
nothing->any.type=VOID; setlonglife(nothing);
}
{ top_definitions=creatsym(match(".top_definitions",false));
add_user_defined();
topsym=creatsym(match(".topsym",false));
topsym->formal=match(".topsym_formal",false);
}
init_state();
initialize_readline();
{ if (!redirected_input)
{ printf("\nLiE version 2.2.2 created on %s\n"
"Authors: Arjeh M. Cohen, Marc van Leeuwen, Bert Lisser.\n", date);
{ FILE* f= fopen(titlefil,"r");
if (f==NULL) printf("Purpose: development CWI\n\n");
else { while ((ch=getc(f)) != EOF) putchar(ch); fclose(f); }
}
printf("\ntype '?help' for help information\n"
"type '?' for a list of help entries.\n");
}
}
if (enter_input_file(initfil)) ++lineno;
{ char* p=getenv("EDITOR");
strcpy(editor, p==NULL ? DEFAULT_EDITOR : p);
p=getenv("PAGER");
strcpy(pager, p==NULL ? DEFAULT_PAGER : p);
}
strcpy(promptlabel,PROMPT);
}
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