1 /****************************************
2 * Computer Algebra System SINGULAR *
3 ****************************************/
4 /*
5 * ABSTRACT: interpreter: LIB and help
6 */
7
8 #include "kernel/mod2.h"
9
10 #include "Singular/tok.h"
11 #include "misc/options.h"
12 #include "Singular/ipid.h"
13 #include "polys/monomials/ring.h"
14 #include "Singular/subexpr.h"
15 #include "Singular/ipid.h"
16 #include "Singular/ipshell.h"
17 #include "Singular/fevoices.h"
18 #include "Singular/lists.h"
19
20 #include <ctype.h>
21
22 #if SIZEOF_LONG == 8
23 #define SI_MAX_NEST 500
24 #elif defined(__CYGWIN__)
25 #define SI_MAX_NEST 480
26 #else
27 #define SI_MAX_NEST 1000
28 #endif
29
30 #if defined(ix86Mac_darwin) || defined(x86_64Mac_darwin) || defined(ppcMac_darwin)
31 # define MODULE_SUFFIX bundle
32 #elif defined(__CYGWIN__)
33 # define MODULE_SUFFIX dll
34 #else
35 # define MODULE_SUFFIX so
36 #endif
37
38 #define MODULE_SUFFIX_STRING EXPANDED_STRINGIFY(MODULE_SUFFIX)
39
40
41 #ifdef HAVE_DYNAMIC_LOADING
42 BOOLEAN load_modules(const char *newlib, char *fullname, BOOLEAN autoexport);
43 #endif
44
45 #ifdef HAVE_LIBPARSER
46 # include "libparse.h"
47 #else /* HAVE_LIBPARSER */
48 procinfo *iiInitSingularProcinfo(procinfov pi, const char *libname,
49 const char *procname, int line, long pos, BOOLEAN pstatic=FALSE);
50 #endif /* HAVE_LIBPARSER */
51
52 extern int iiArithAddCmd(const char *szName, short nAlias, short nTokval,
53 short nToktype, short nPos);
54
55 #include "Singular/mod_lib.h"
56
57 #ifdef HAVE_LIBPARSER
58 void yylprestart (FILE *input_file );
59 int current_pos(int i=0);
60 EXTERN_VAR int yylp_errno;
61 EXTERN_VAR int yylplineno;
62 extern const char *yylp_errlist[];
63 void print_init();
64 VAR libstackv library_stack;
65 #endif
66
67 //int IsCmd(char *n, int tok);
68 char mytolower(char c);
69
70 /*2
71 * return TRUE if the libray libname is already loaded
72 */
iiGetLibStatus(const char * lib)73 BOOLEAN iiGetLibStatus(const char *lib)
74 {
75 idhdl hl;
76
77 char *plib = iiConvName(lib);
78 hl = basePack->idroot->get(plib,0);
79 omFree(plib);
80 if((hl==NULL) ||(IDTYP(hl)!=PACKAGE_CMD))
81 {
82 return FALSE;
83 }
84 if ((IDPACKAGE(hl)->language!=LANG_C)&&(IDPACKAGE(hl)->libname!=NULL))
85 return (strcmp(lib,IDPACKAGE(hl)->libname)==0);
86 return FALSE;
87 }
88
89 /*2
90 * given a line 'proc[ ]+{name}[ \t]*'
91 * return a pointer to name and set the end of '\0'
92 * changes the input!
93 * returns: e: pointer to 'end of name'
94 * ct: changed char at the end of s
95 */
iiProcName(char * buf,char & ct,char * & e)96 char* iiProcName(char *buf, char & ct, char* &e)
97 {
98 char *s=buf+5;
99 while (*s==' ') s++;
100 e=s+1;
101 while ((*e>' ') && (*e!='(')) e++;
102 ct=*e;
103 *e='\0';
104 return s;
105 }
106
107 /*2
108 * given a line with args, return the argstr
109 */
iiProcArgs(char * e,BOOLEAN withParenth)110 char * iiProcArgs(char *e,BOOLEAN withParenth)
111 {
112 while ((*e==' ') || (*e=='\t') || (*e=='(')) e++;
113 if (*e<' ')
114 {
115 if (withParenth)
116 {
117 // no argument list, allow list #
118 return omStrDup("parameter list #;");
119 }
120 else
121 {
122 // empty list
123 return omStrDup("");
124 }
125 }
126 BOOLEAN in_args;
127 BOOLEAN args_found;
128 char *s;
129 char *argstr=(char *)omAlloc(127); // see ../omalloc/omTables.inc
130 int argstrlen=127;
131 *argstr='\0';
132 int par=0;
133 do
134 {
135 args_found=FALSE;
136 s=e; // set s to the starting point of the arg
137 // and search for the end
138 // skip leading spaces:
139 loop
140 {
141 if ((*s==' ')||(*s=='\t'))
142 s++;
143 else if ((*s=='\n')&&(*(s+1)==' '))
144 s+=2;
145 else // start of new arg or \0 or )
146 break;
147 }
148 e=s;
149 while ((*e!=',')
150 &&((par!=0) || (*e!=')'))
151 &&(*e!='\0'))
152 {
153 if (*e=='(') par++;
154 else if (*e==')') par--;
155 args_found=args_found || (*e>' ');
156 e++;
157 }
158 in_args=(*e==',');
159 if (args_found)
160 {
161 *e='\0';
162 // check for space:
163 if ((int)strlen(argstr)+12 /* parameter + ;*/ +(int)strlen(s)>= argstrlen)
164 {
165 argstrlen*=2;
166 char *a=(char *)omAlloc( argstrlen);
167 strcpy(a,argstr);
168 omFree((ADDRESS)argstr);
169 argstr=a;
170 }
171 // copy the result to argstr
172 if(strncmp(s,"alias ",6)!=0)
173 {
174 strcat(argstr,"parameter ");
175 }
176 strcat(argstr,s);
177 strcat(argstr,"; ");
178 e++; // e was pointing to ','
179 }
180 } while (in_args);
181 return argstr;
182 }
183
184 /*2
185 * locate `procname` in lib `libname` and find the part `part`:
186 * part=0: help, between, but excluding the line "proc ..." and "{...":
187 * => return
188 * part=1: body, between "{ ..." and "}", including the 1. line, w/o "{"
189 * => set pi->data.s.body, return NULL
190 * part=2: example, between, but excluding the line "exapmle {..." and "}":
191 * => return
192 */
iiGetLibProcBuffer(procinfo * pi,int part)193 char* iiGetLibProcBuffer(procinfo *pi, int part )
194 {
195 char buf[256], *s = NULL, *p;
196 long procbuflen;
197
198 FILE * fp = feFopen( pi->libname, "rb", NULL, TRUE );
199 if (fp==NULL)
200 {
201 return NULL;
202 }
203
204 fseek(fp, pi->data.s.proc_start, SEEK_SET);
205 if(part==0)
206 { // load help string
207 int i, offset=0;
208 long head = pi->data.s.def_end - pi->data.s.proc_start;
209 procbuflen = pi->data.s.help_end - pi->data.s.help_start;
210 if (procbuflen<5)
211 {
212 fclose(fp);
213 return NULL; // help part does not exist
214 }
215 //Print("Help=%ld-%ld=%d\n", pi->data.s.body_start,
216 // pi->data.s.proc_start, procbuflen);
217 s = (char *)omAlloc(procbuflen+head+3);
218 myfread(s, head, 1, fp);
219 s[head] = '\n';
220 fseek(fp, pi->data.s.help_start, SEEK_SET);
221 myfread(s+head+1, procbuflen, 1, fp);
222 fclose(fp);
223 s[procbuflen+head+1] = '\n';
224 s[procbuflen+head+2] = '\0';
225 offset=0;
226 for(i=0;i<=procbuflen+head+2; i++)
227 {
228 if(s[i]=='\\' &&
229 (s[i+1]=='"' || s[i+1]=='{' || s[i+1]=='}' || s[i+1]=='\\'))
230 {
231 i++;
232 offset++;
233 }
234 if(offset>0) s[i-offset] = s[i];
235 }
236 return(s);
237 }
238 else if(part==1)
239 { // load proc part - must exist
240 procbuflen = pi->data.s.def_end - pi->data.s.proc_start;
241 char *ss=(char *)omAlloc(procbuflen+2);
242 //fgets(buf, sizeof(buf), fp);
243 myfread( ss, procbuflen, 1, fp);
244 char ct;
245 char *e;
246 s=iiProcName(ss,ct,e);
247 char *argstr=NULL;
248 *e=ct;
249 argstr=iiProcArgs(e,TRUE);
250
251 assume(pi->data.s.body_end > pi->data.s.body_start);
252
253 procbuflen = pi->data.s.body_end - pi->data.s.body_start;
254 pi->data.s.body = (char *)omAlloc( strlen(argstr)+procbuflen+15+
255 strlen(pi->libname) );
256 //Print("Body=%ld-%ld=%d\n", pi->data.s.body_end,
257 // pi->data.s.body_start, procbuflen);
258 assume(pi->data.s.body != NULL);
259 fseek(fp, pi->data.s.body_start, SEEK_SET);
260 strcpy(pi->data.s.body,argstr);
261 myfread( pi->data.s.body+strlen(argstr), procbuflen, 1, fp);
262 fclose( fp );
263 procbuflen+=strlen(argstr);
264 omFree(argstr);
265 omFree(ss);
266 pi->data.s.body[procbuflen] = '\0';
267 strcat( pi->data.s.body+procbuflen, "\n;return();\n\n" );
268 strcat( pi->data.s.body+procbuflen+13,pi->libname);
269 s=(char *)strchr(pi->data.s.body,'{');
270 if (s!=NULL) *s=' ';
271 return NULL;
272 }
273 else if(part==2)
274 { // example
275 if ( pi->data.s.example_lineno == 0)
276 return NULL; // example part does not exist
277 // load example
278 fseek(fp, pi->data.s.example_start, SEEK_SET);
279 /*char *dummy=*/ (void) fgets(buf, sizeof(buf), fp); // skip line with "example"
280 procbuflen = pi->data.s.proc_end - pi->data.s.example_start - strlen(buf);
281 //Print("Example=%ld-%ld=%d\n", pi->data.s.proc_end,
282 // pi->data.s.example_start, procbuflen);
283 s = (char *)omAlloc(procbuflen+14);
284 myfread(s, procbuflen, 1, fp);
285 s[procbuflen] = '\0';
286 strcat(s+procbuflen-3, "\n;return();\n\n" );
287 p=(char *)strchr(s,'{');
288 if (p!=NULL) *p=' ';
289 return(s);
290 }
291 return NULL;
292 }
293
iiAllStart(procinfov pi,const char * p,feBufferTypes t,int l)294 BOOLEAN iiAllStart(procinfov pi, const char *p, feBufferTypes t, int l)
295 {
296 int save_trace=traceit;
297 int restore_traceit=0;
298 if (traceit_stop
299 && (traceit & TRACE_SHOW_LINE))
300 {
301 traceit &=(~TRACE_SHOW_LINE);
302 traceit_stop=0;
303 restore_traceit=1;
304 }
305 // see below:
306 BITSET save1=si_opt_1;
307 BITSET save2=si_opt_2;
308 newBuffer( omStrDup(p /*pi->data.s.body*/), t /*BT_proc*/,
309 pi, l );
310 BOOLEAN err=yyparse();
311
312 if (sLastPrinted.rtyp!=0)
313 {
314 sLastPrinted.CleanUp();
315 }
316
317 if (restore_traceit) traceit=save_trace;
318
319 // the access to optionStruct and verboseStruct do not work
320 // on x86_64-Linux for pic-code
321 if ((TEST_V_ALLWARN) &&
322 (t==BT_proc) &&
323 ((save1!=si_opt_1)||(save2!=si_opt_2)) &&
324 (pi->libname!=NULL) && (pi->libname[0]!='\0'))
325 {
326 if ((pi->libname!=NULL) && (pi->libname[0]!='\0'))
327 Warn("option changed in proc %s from %s",pi->procname,pi->libname);
328 else
329 Warn("option changed in proc %s",pi->procname);
330 int i;
331 for (i=0; optionStruct[i].setval!=0; i++)
332 {
333 if ((optionStruct[i].setval & si_opt_1)
334 && (!(optionStruct[i].setval & save1)))
335 {
336 Print(" +%s",optionStruct[i].name);
337 }
338 if (!(optionStruct[i].setval & si_opt_1)
339 && ((optionStruct[i].setval & save1)))
340 {
341 Print(" -%s",optionStruct[i].name);
342 }
343 }
344 for (i=0; verboseStruct[i].setval!=0; i++)
345 {
346 if ((verboseStruct[i].setval & si_opt_2)
347 && (!(verboseStruct[i].setval & save2)))
348 {
349 Print(" +%s",verboseStruct[i].name);
350 }
351 if (!(verboseStruct[i].setval & si_opt_2)
352 && ((verboseStruct[i].setval & save2)))
353 {
354 Print(" -%s",verboseStruct[i].name);
355 }
356 }
357 PrintLn();
358 }
359 return err;
360 }
361 /*2
362 * start a proc
363 * parameters are built as exprlist
364 * TODO:interrupt
365 * return FALSE on success, TRUE if an error occurs
366 */
iiPStart(idhdl pn,leftv v)367 BOOLEAN iiPStart(idhdl pn, leftv v)
368 {
369 procinfov pi=NULL;
370 int old_echo=si_echo;
371 BOOLEAN err=FALSE;
372 char save_flags=0;
373
374 /* init febase ======================================== */
375 /* we do not enter this case if filename != NULL !! */
376 if (pn!=NULL)
377 {
378 pi = IDPROC(pn);
379 if(pi!=NULL)
380 {
381 save_flags=pi->trace_flag;
382 if( pi->data.s.body==NULL )
383 {
384 iiGetLibProcBuffer(pi);
385 if (pi->data.s.body==NULL) return TRUE;
386 }
387 // omUpdateInfo();
388 // int m=om_Info.UsedBytes;
389 // Print("proc %s, mem=%d\n",IDID(pn),m);
390 }
391 }
392 else return TRUE;
393 /* generate argument list ======================================*/
394 //iiCurrArgs should be NULL here, as the assignment for the parameters
395 // of the prevouis call are already done befor calling another routine
396 if (v!=NULL)
397 {
398 iiCurrArgs=(leftv)omAllocBin(sleftv_bin);
399 memcpy(iiCurrArgs,v,sizeof(sleftv)); // keeps track of v->next etc.
400 v->Init();
401 }
402 else
403 {
404 iiCurrArgs=NULL;
405 }
406 /* start interpreter ======================================*/
407 myynest++;
408 if (myynest > SI_MAX_NEST)
409 {
410 WerrorS("nesting too deep");
411 err=TRUE;
412 }
413 else
414 {
415 iiCurrProc=pn;
416 err=iiAllStart(pi,pi->data.s.body,BT_proc,pi->data.s.body_lineno-(v!=NULL));
417 iiCurrProc=NULL;
418
419 if (iiLocalRing[myynest-1] != currRing)
420 {
421 if (iiRETURNEXPR.RingDependend())
422 {
423 //idhdl hn;
424 const char *n;
425 const char *o;
426 idhdl nh=NULL, oh=NULL;
427 if (iiLocalRing[myynest-1]!=NULL)
428 oh=rFindHdl(iiLocalRing[myynest-1],NULL);
429 if (oh!=NULL) o=oh->id;
430 else o="none";
431 if (currRing!=NULL)
432 nh=rFindHdl(currRing,NULL);
433 if (nh!=NULL) n=nh->id;
434 else n="none";
435 Werror("ring change during procedure call %s: %s -> %s (level %d)",pi->procname,o,n,myynest);
436 iiRETURNEXPR.CleanUp();
437 err=TRUE;
438 }
439 currRing=iiLocalRing[myynest-1];
440 }
441 if ((currRing==NULL)
442 && (currRingHdl!=NULL))
443 currRing=IDRING(currRingHdl);
444 else
445 if ((currRing!=NULL) &&
446 ((currRingHdl==NULL)||(IDRING(currRingHdl)!=currRing)
447 ||(IDLEV(currRingHdl)>=myynest-1)))
448 {
449 rSetHdl(rFindHdl(currRing,NULL));
450 iiLocalRing[myynest-1]=NULL;
451 }
452 //Print("kill locals for %s (level %d)\n",IDID(pn),myynest);
453 killlocals(myynest);
454 #ifndef SING_NDEBUG
455 checkall();
456 #endif
457 //Print("end kill locals for %s (%d)\n",IDID(pn),myynest);
458 }
459 myynest--;
460 si_echo=old_echo;
461 if (pi!=NULL)
462 pi->trace_flag=save_flags;
463 // omUpdateInfo();
464 // int m=om_Info.UsedBytes;
465 // Print("exit %s, mem=%d\n",IDID(pn),m);
466 return err;
467 }
468
469 VAR ring *iiLocalRing;
470 INST_VAR sleftv iiRETURNEXPR;
471 VAR int iiRETURNEXPR_len=0;
472
473 #ifdef RDEBUG
iiShowLevRings()474 static void iiShowLevRings()
475 {
476 int i;
477 for (i=0;i<=myynest;i++)
478 {
479 Print("lev %d:",i);
480 if (iiLocalRing[i]==NULL) PrintS("NULL");
481 else Print("%lx",(long)iiLocalRing[i]);
482 PrintLn();
483 }
484 if (currRing==NULL) PrintS("curr:NULL\n");
485 else Print ("curr:%lx\n",(long)currRing);
486 }
487 #endif /* RDEBUG */
488
iiCheckNest()489 static void iiCheckNest()
490 {
491 if (myynest >= iiRETURNEXPR_len-1)
492 {
493 iiLocalRing=(ring *)omreallocSize(iiLocalRing,
494 iiRETURNEXPR_len*sizeof(ring),
495 (iiRETURNEXPR_len+16)*sizeof(ring));
496 memset(&(iiLocalRing[iiRETURNEXPR_len]),0,16*sizeof(ring));
497 iiRETURNEXPR_len+=16;
498 }
499 }
iiMake_proc(idhdl pn,package pack,leftv args)500 BOOLEAN iiMake_proc(idhdl pn, package pack, leftv args)
501 {
502 int err;
503 procinfov pi = IDPROC(pn);
504 if(pi->is_static && myynest==0)
505 {
506 Werror("'%s::%s()' is a local procedure and cannot be accessed by an user.",
507 pi->libname, pi->procname);
508 return TRUE;
509 }
510 iiCheckNest();
511 iiLocalRing[myynest]=currRing;
512 //Print("currRing(%d):%s(%x) in %s\n",myynest,IDID(currRingHdl),currRing,IDID(pn));
513 iiRETURNEXPR.Init();
514 procstack->push(pi->procname);
515 if ((traceit&TRACE_SHOW_PROC)
516 || (pi->trace_flag&TRACE_SHOW_PROC))
517 {
518 if (traceit&TRACE_SHOW_LINENO) PrintLn();
519 Print("entering%-*.*s %s (level %d)\n",myynest*2,myynest*2," ",IDID(pn),myynest);
520 }
521 #ifdef RDEBUG
522 if (traceit&TRACE_SHOW_RINGS) iiShowLevRings();
523 #endif
524 switch (pi->language)
525 {
526 default:
527 case LANG_NONE:
528 WerrorS("undefined proc");
529 err=TRUE;
530 break;
531
532 case LANG_SINGULAR:
533 if ((pi->pack!=NULL)&&(currPack!=pi->pack))
534 {
535 currPack=pi->pack;
536 iiCheckPack(currPack);
537 currPackHdl=packFindHdl(currPack);
538 //Print("set pack=%s\n",IDID(currPackHdl));
539 }
540 else if ((pack!=NULL)&&(currPack!=pack))
541 {
542 currPack=pack;
543 iiCheckPack(currPack);
544 currPackHdl=packFindHdl(currPack);
545 //Print("set pack=%s\n",IDID(currPackHdl));
546 }
547 err=iiPStart(pn,args);
548 break;
549 case LANG_C:
550 leftv res = (leftv)omAlloc0Bin(sleftv_bin);
551 err = (pi->data.o.function)(res, args);
552 memcpy(&iiRETURNEXPR,res,sizeof(iiRETURNEXPR));
553 omFreeBin((ADDRESS)res, sleftv_bin);
554 break;
555 }
556 if ((traceit&TRACE_SHOW_PROC)
557 || (pi->trace_flag&TRACE_SHOW_PROC))
558 {
559 if (traceit&TRACE_SHOW_LINENO) PrintLn();
560 Print("leaving %-*.*s %s (level %d)\n",myynest*2,myynest*2," ",IDID(pn),myynest);
561 }
562 //const char *n="NULL";
563 //if (currRingHdl!=NULL) n=IDID(currRingHdl);
564 //Print("currRing(%d):%s(%x) after %s\n",myynest,n,currRing,IDID(pn));
565 #ifdef RDEBUG
566 if (traceit&TRACE_SHOW_RINGS) iiShowLevRings();
567 #endif
568 if (err)
569 {
570 iiRETURNEXPR.CleanUp();
571 //iiRETURNEXPR.Init(); //done by CleanUp
572 }
573 if (iiCurrArgs!=NULL)
574 {
575 if (!err) Warn("too many arguments for %s",IDID(pn));
576 iiCurrArgs->CleanUp();
577 omFreeBin((ADDRESS)iiCurrArgs, sleftv_bin);
578 iiCurrArgs=NULL;
579 }
580 procstack->pop();
581 if (err)
582 return TRUE;
583 return FALSE;
584 }
iiCallLibProcBegin()585 static void iiCallLibProcBegin()
586 {
587 idhdl tmp_ring=NULL;
588 if (currRing!=NULL)
589 {
590 if ((currRingHdl!=NULL) && (IDRING(currRingHdl)!=currRing))
591 {
592 // clean up things depending on currRingHdl:
593 sLastPrinted.CleanUp(IDRING(currRingHdl));
594 sLastPrinted.Init();
595 }
596 // need to define a ring-hdl for currRingHdl
597 tmp_ring=enterid(" tmpRing",myynest,RING_CMD,&IDROOT,FALSE);
598 IDRING(tmp_ring)=rIncRefCnt(currRing);
599 rSetHdl(tmp_ring);
600 }
601 }
iiCallLibProcEnd(idhdl save_ringhdl,ring save_ring)602 static void iiCallLibProcEnd(idhdl save_ringhdl, ring save_ring)
603 {
604 if ((currRing!=NULL)
605 &&(currRing!=save_ring))
606 {
607 rDecRefCnt(currRing);
608 idhdl hh=IDROOT;
609 idhdl prev=NULL;
610 while((hh!=currRingHdl) && (hh!=NULL)) { prev=hh; hh=hh->next; }
611 if (hh!=NULL)
612 {
613 if (prev==NULL) IDROOT=hh->next;
614 else prev->next=hh->next;
615 omFree((ADDRESS)IDID(hh));
616 omFreeBin((ADDRESS)hh, idrec_bin);
617 }
618 }
619 currRingHdl=save_ringhdl;
620 currRing=save_ring;
621 }
622
iiCallLibProc1(const char * n,void * arg,int arg_type,BOOLEAN & err)623 void* iiCallLibProc1(const char*n, void *arg, int arg_type, BOOLEAN &err)
624 {
625 idhdl h=ggetid(n);
626 if ((h==NULL)
627 || (IDTYP(h)!=PROC_CMD))
628 {
629 err=2;
630 return NULL;
631 }
632 // ring handling
633 idhdl save_ringhdl=currRingHdl;
634 ring save_ring=currRing;
635 iiCallLibProcBegin();
636 // argument:
637 sleftv tmp;
638 tmp.Init();
639 tmp.data=arg;
640 tmp.rtyp=arg_type;
641 // call proc
642 err=iiMake_proc(h,currPack,&tmp);
643 // clean up ring
644 iiCallLibProcEnd(save_ringhdl,save_ring);
645 // return
646 if (err==FALSE)
647 {
648 void*r=iiRETURNEXPR.data;
649 iiRETURNEXPR.data=NULL;
650 iiRETURNEXPR.CleanUp();
651 return r;
652 }
653 return NULL;
654 }
655
656 // return NULL on failure
ii_CallProcId2Id(const char * lib,const char * proc,ideal arg,const ring R)657 ideal ii_CallProcId2Id(const char *lib,const char *proc, ideal arg, const ring R)
658 {
659 char *plib = iiConvName(lib);
660 idhdl h=ggetid(plib);
661 omFree(plib);
662 if (h==NULL)
663 {
664 BOOLEAN bo=iiLibCmd(lib,TRUE,TRUE,FALSE);
665 if (bo) return NULL;
666 }
667 ring oldR=currRing;
668 rChangeCurrRing(R);
669 BOOLEAN err;
670 ideal I=(ideal)iiCallLibProc1(proc,idCopy(arg),IDEAL_CMD,err);
671 rChangeCurrRing(oldR);
672 if (err) return NULL;
673 return I;
674 }
675
ii_CallProcId2Int(const char * lib,const char * proc,ideal arg,const ring R)676 int ii_CallProcId2Int(const char *lib,const char *proc, ideal arg, const ring R)
677 {
678 char *plib = iiConvName(lib);
679 idhdl h=ggetid(plib);
680 omFree(plib);
681 if (h==NULL)
682 {
683 BOOLEAN bo=iiLibCmd(lib,TRUE,TRUE,FALSE);
684 if (bo) return 0;
685 }
686 BOOLEAN err;
687 ring oldR=currRing;
688 rChangeCurrRing(R);
689 int I=(int)(long)iiCallLibProc1(proc,idCopy(arg),IDEAL_CMD,err);
690 rChangeCurrRing(oldR);
691 if (err) return 0;
692 return I;
693 }
694
695 /// args: NULL terminated array of arguments
696 /// arg_types: 0 terminated array of corresponding types
ii_CallLibProcM(const char * n,void ** args,int * arg_types,const ring R,BOOLEAN & err)697 leftv ii_CallLibProcM(const char*n, void **args, int* arg_types, const ring R, BOOLEAN &err)
698 {
699 idhdl h=ggetid(n);
700 if ((h==NULL)
701 || (IDTYP(h)!=PROC_CMD))
702 {
703 err=2;
704 return NULL;
705 }
706 // ring handling
707 idhdl save_ringhdl=currRingHdl;
708 ring save_ring=currRing;
709 rChangeCurrRing(R);
710 iiCallLibProcBegin();
711 // argument:
712 if (arg_types[0]!=0)
713 {
714 sleftv tmp;
715 leftv tt=&tmp;
716 int i=1;
717 tmp.Init();
718 tmp.data=args[0];
719 tmp.rtyp=arg_types[0];
720 while(arg_types[i]!=0)
721 {
722 tt->next=(leftv)omAlloc0Bin(sleftv_bin);
723 tt=tt->next;
724 tt->rtyp=arg_types[i];
725 tt->data=args[i];
726 i++;
727 }
728 // call proc
729 err=iiMake_proc(h,currPack,&tmp);
730 }
731 else
732 // call proc
733 err=iiMake_proc(h,currPack,NULL);
734 // clean up ring
735 iiCallLibProcEnd(save_ringhdl,save_ring);
736 // return
737 if (err==FALSE)
738 {
739 leftv h=(leftv)omAllocBin(sleftv_bin);
740 memcpy(h,&iiRETURNEXPR,sizeof(sleftv));
741 iiRETURNEXPR.Init();
742 return h;
743 }
744 return NULL;
745 }
746 /*2
747 * start an example (as a proc),
748 * destroys the string 'example'
749 */
iiEStart(char * example,procinfo * pi)750 BOOLEAN iiEStart(char* example, procinfo *pi)
751 {
752 BOOLEAN err;
753 int old_echo=si_echo;
754
755 iiCheckNest();
756 procstack->push(example);
757 iiLocalRing[myynest]=currRing;
758 if (traceit&TRACE_SHOW_PROC)
759 {
760 if (traceit&TRACE_SHOW_LINENO) printf("\n");
761 printf("entering example (level %d)\n",myynest);
762 }
763 myynest++;
764
765 err=iiAllStart(pi,example,BT_example,(pi != NULL ? pi->data.s.example_lineno: 0));
766
767 killlocals(myynest);
768 myynest--;
769 si_echo=old_echo;
770 if (traceit&TRACE_SHOW_PROC)
771 {
772 if (traceit&TRACE_SHOW_LINENO) printf("\n");
773 printf("leaving -example- (level %d)\n",myynest);
774 }
775 if (iiLocalRing[myynest] != currRing)
776 {
777 if (iiLocalRing[myynest]!=NULL)
778 {
779 rSetHdl(rFindHdl(iiLocalRing[myynest],NULL));
780 iiLocalRing[myynest]=NULL;
781 }
782 else
783 {
784 currRingHdl=NULL;
785 currRing=NULL;
786 }
787 }
788 procstack->pop();
789 return err;
790 }
791
792
793 extern "C"
794 {
795 # define SI_GET_BUILTIN_MOD_INIT0(name) int SI_MOD_INIT0(name)(SModulFunctions*);
796 SI_FOREACH_BUILTIN(SI_GET_BUILTIN_MOD_INIT0)
797 # undef SI_GET_BUILTIN_MOD_INIT0
798 };
799
800 extern "C" int flint_mod_init(SModulFunctions* psModulFunctions);
801
802 SModulFunc_t
iiGetBuiltinModInit(const char * libname)803 iiGetBuiltinModInit(const char* libname)
804 {
805 #ifdef HAVE_FLINT
806 if (strcmp(libname,"flint.so")==0) return SI_MOD_INIT0(flint);
807 #endif
808 # define SI_GET_BUILTIN_MOD_INIT(name) if (strcmp(libname, #name ".so") == 0){ return SI_MOD_INIT0(name); }
809 SI_FOREACH_BUILTIN(SI_GET_BUILTIN_MOD_INIT)
810 # undef SI_GET_BUILTIN_MOD_INIT
811
812 return NULL;
813 }
814
815
816
817
818 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
iiTryLoadLib(leftv v,const char * id)819 BOOLEAN iiTryLoadLib(leftv v, const char *id)
820 {
821 BOOLEAN LoadResult = TRUE;
822 char libnamebuf[1024];
823 char *libname = (char *)omAlloc(strlen(id)+5);
824 const char *suffix[] = { "", ".lib", ".so", ".sl", NULL };
825 int i = 0;
826 // FILE *fp;
827 // package pack;
828 // idhdl packhdl;
829 lib_types LT;
830 for(i=0; suffix[i] != NULL; i++)
831 {
832 sprintf(libname, "%s%s", id, suffix[i]);
833 *libname = mytolower(*libname);
834 if((LT = type_of_LIB(libname, libnamebuf)) > LT_NOTFOUND)
835 {
836 #ifdef HAVE_DYNAMIC_LOADING
837 char libnamebuf[1024];
838 #endif
839
840 if (LT==LT_SINGULAR)
841 LoadResult = iiLibCmd(libname, FALSE, FALSE,TRUE);
842 #ifdef HAVE_DYNAMIC_LOADING
843 else if ((LT==LT_ELF) || (LT==LT_HPUX))
844 LoadResult = load_modules(libname,libnamebuf,FALSE);
845 #endif
846 else if (LT==LT_BUILTIN)
847 {
848 LoadResult=load_builtin(libname,FALSE, iiGetBuiltinModInit(libname));
849 }
850 if(!LoadResult )
851 {
852 v->name = iiConvName(libname);
853 break;
854 }
855 }
856 }
857 omFree(libname);
858 return LoadResult;
859 }
860
861 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
862 /* check, if library lib has already been loaded
863 if yes, writes filename of lib into where and returns TRUE,
864 no, returns FALSE
865 */
iiLocateLib(const char * lib,char * where)866 BOOLEAN iiLocateLib(const char* lib, char* where)
867 {
868 char *plib = iiConvName(lib);
869 idhdl pl = basePack->idroot->get(plib,0);
870 if( (pl!=NULL) && (IDTYP(pl)==PACKAGE_CMD) &&
871 (IDPACKAGE(pl)->language == LANG_SINGULAR))
872 {
873 strncpy(where,IDPACKAGE(pl)->libname,127);
874 return TRUE;
875 }
876 else
877 return FALSE;;
878 }
879
iiLibCmd(const char * newlib,BOOLEAN autoexport,BOOLEAN tellerror,BOOLEAN force)880 BOOLEAN iiLibCmd( const char *newlib, BOOLEAN autoexport, BOOLEAN tellerror, BOOLEAN force )
881 {
882 if (strcmp(newlib,"Singular")==0) return FALSE;
883 char libnamebuf[1024];
884 idhdl pl;
885 char *plib = iiConvName(newlib);
886 FILE * fp = feFopen( newlib, "r", libnamebuf, tellerror );
887 // int lines = 1;
888 BOOLEAN LoadResult = TRUE;
889
890 if (fp==NULL)
891 {
892 return TRUE;
893 }
894 pl = basePack->idroot->get(plib,0);
895 if (pl==NULL)
896 {
897 pl = enterid( plib,0, PACKAGE_CMD,
898 &(basePack->idroot), TRUE );
899 IDPACKAGE(pl)->language = LANG_SINGULAR;
900 IDPACKAGE(pl)->libname=omStrDup(newlib);
901 }
902 else
903 {
904 if(IDTYP(pl)!=PACKAGE_CMD)
905 {
906 omFree(plib);
907 WarnS("not of type package.");
908 fclose(fp);
909 return TRUE;
910 }
911 if (!force)
912 {
913 omFree(plib);
914 return FALSE;
915 }
916 }
917 LoadResult = iiLoadLIB(fp, libnamebuf, newlib, pl, autoexport, tellerror);
918
919 if(!LoadResult) IDPACKAGE(pl)->loaded = TRUE;
920 omFree((ADDRESS)plib);
921 return LoadResult;
922 }
923 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
iiCleanProcs(idhdl & root)924 static void iiCleanProcs(idhdl &root)
925 {
926 idhdl prev=NULL;
927 loop
928 {
929 if (root==NULL) return;
930 if (IDTYP(root)==PROC_CMD)
931 {
932 procinfo *pi=(procinfo*)IDDATA(root);
933 if ((pi->language == LANG_SINGULAR)
934 && (pi->data.s.body_start == 0L))
935 {
936 // procinfo data incorrect:
937 // - no proc body can start at the beginning of the file
938 killhdl(root);
939 if (prev==NULL)
940 root=IDROOT;
941 else
942 {
943 root=prev;
944 prev=NULL;
945 }
946 continue;
947 }
948 }
949 prev=root;
950 root=IDNEXT(root);
951 }
952 }
iiRunInit(package p)953 static void iiRunInit(package p)
954 {
955 idhdl h=p->idroot->get("mod_init",0);
956 if (h==NULL) return;
957 if (IDTYP(h)==PROC_CMD)
958 {
959 int save=yylineno;
960 myynest++;
961 // procinfo *pi=(procinfo*)IDDATA(h);
962 //PrintS("mod_init found\n");
963 iiMake_proc(h,p,NULL);
964 myynest--;
965 yylineno=save;
966 }
967 }
968 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
iiLoadLIB(FILE * fp,const char * libnamebuf,const char * newlib,idhdl pl,BOOLEAN autoexport,BOOLEAN tellerror)969 BOOLEAN iiLoadLIB(FILE *fp, const char *libnamebuf, const char*newlib,
970 idhdl pl, BOOLEAN autoexport, BOOLEAN tellerror)
971 {
972 EXTERN_VAR FILE *yylpin;
973 libstackv ls_start = library_stack;
974 lib_style_types lib_style;
975
976 yylpin = fp;
977 #if YYLPDEBUG > 1
978 print_init();
979 #endif
980 EXTERN_VAR int lpverbose;
981 if (BVERBOSE(V_DEBUG_LIB)) lpverbose=1;
982 else lpverbose=0;
983 // yylplex sets also text_buffer
984 if (text_buffer!=NULL) *text_buffer='\0';
985 yylplex(newlib, libnamebuf, &lib_style, pl, autoexport);
986 if(yylp_errno)
987 {
988 Werror("Library %s: ERROR occurred: in line %d, %d.", newlib, yylplineno,
989 current_pos(0));
990 if(yylp_errno==YYLP_BAD_CHAR)
991 {
992 Werror(yylp_errlist[yylp_errno], *text_buffer, yylplineno);
993 omFree((ADDRESS)text_buffer);
994 text_buffer=NULL;
995 }
996 else
997 Werror(yylp_errlist[yylp_errno], yylplineno);
998 WerrorS("Cannot load library,... aborting.");
999 reinit_yylp();
1000 fclose( yylpin );
1001 iiCleanProcs(IDROOT);
1002 return TRUE;
1003 }
1004 if (BVERBOSE(V_LOAD_LIB))
1005 Print( "// ** loaded %s %s\n", libnamebuf, text_buffer);
1006 if( (lib_style == OLD_LIBSTYLE) && (BVERBOSE(V_LOAD_LIB)))
1007 {
1008 Warn( "library %s has old format. This format is still accepted,", newlib);
1009 WarnS( "but for functionality you may wish to change to the new");
1010 WarnS( "format. Please refer to the manual for further information.");
1011 }
1012 reinit_yylp();
1013 fclose( yylpin );
1014 fp = NULL;
1015 iiRunInit(IDPACKAGE(pl));
1016
1017 {
1018 libstackv ls;
1019 for(ls = library_stack; (ls != NULL) && (ls != ls_start); )
1020 {
1021 if(ls->to_be_done)
1022 {
1023 ls->to_be_done=FALSE;
1024 iiLibCmd(ls->get(),autoexport,tellerror,FALSE);
1025 ls = ls->pop(newlib);
1026 }
1027 }
1028 #if 0
1029 PrintS("--------------------\n");
1030 for(ls = library_stack; ls != NULL; ls = ls->next)
1031 {
1032 Print("%s: LIB-stack:(%d), %s %s\n", newlib, ls->cnt, ls->get(),
1033 ls->to_be_done ? "not loaded" : "loaded");
1034 }
1035 PrintS("--------------------\n");
1036 #endif
1037 }
1038
1039 if(fp != NULL) fclose(fp);
1040 return FALSE;
1041 }
1042
1043
1044 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
iiInitSingularProcinfo(procinfov pi,const char * libname,const char * procname,int,long pos,BOOLEAN pstatic)1045 procinfo *iiInitSingularProcinfo(procinfov pi, const char *libname,
1046 const char *procname, int, long pos, BOOLEAN pstatic)
1047 {
1048 memset(pi,0,sizeof(*pi));
1049 pi->libname = omStrDup(libname);
1050 pi->procname = omStrDup(procname);
1051 pi->language = LANG_SINGULAR;
1052 pi->ref = 1;
1053 pi->is_static = pstatic;
1054 pi->data.s.proc_start = pos;
1055 return(pi);
1056 }
1057
1058 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
iiAddCproc(const char * libname,const char * procname,BOOLEAN pstatic,BOOLEAN (* func)(leftv res,leftv v))1059 int iiAddCproc(const char *libname, const char *procname, BOOLEAN pstatic,
1060 BOOLEAN(*func)(leftv res, leftv v))
1061 {
1062 procinfov pi;
1063 idhdl h;
1064
1065 #ifndef SING_NDEBUG
1066 int dummy;
1067 if (IsCmd(procname,dummy))
1068 {
1069 Werror(">>%s< is a reserved name",procname);
1070 return 0;
1071 }
1072 #endif
1073
1074 h=IDROOT->get(procname,0);
1075 if ((h!=NULL)
1076 && (IDTYP(h)==PROC_CMD))
1077 {
1078 pi = IDPROC(h);
1079 #if 0
1080 if ((pi->language == LANG_SINGULAR)
1081 &&(BVERBOSE(V_REDEFINE)))
1082 Warn("extend `%s`",procname);
1083 #endif
1084 }
1085 else
1086 {
1087 h = enterid(procname,0, PROC_CMD, &IDROOT, TRUE);
1088 }
1089 if ( h!= NULL )
1090 {
1091 pi = IDPROC(h);
1092 if((pi->language == LANG_SINGULAR)
1093 ||(pi->language == LANG_NONE))
1094 {
1095 omfree(pi->libname);
1096 pi->libname = omStrDup(libname);
1097 omfree(pi->procname);
1098 pi->procname = omStrDup(procname);
1099 pi->language = LANG_C;
1100 pi->ref = 1;
1101 pi->is_static = pstatic;
1102 pi->data.o.function = func;
1103 }
1104 else if(pi->language == LANG_C)
1105 {
1106 if(pi->data.o.function == func)
1107 {
1108 pi->ref++;
1109 }
1110 else
1111 {
1112 omfree(pi->libname);
1113 pi->libname = omStrDup(libname);
1114 omfree(pi->procname);
1115 pi->procname = omStrDup(procname);
1116 pi->language = LANG_C;
1117 pi->ref = 1;
1118 pi->is_static = pstatic;
1119 pi->data.o.function = func;
1120 }
1121 }
1122 else
1123 Warn("internal error: unknown procedure type %d",pi->language);
1124 if (currPack->language==LANG_SINGULAR) currPack->language=LANG_MIX;
1125 return(1);
1126 }
1127 else
1128 {
1129 WarnS("iiAddCproc: failed.");
1130 }
1131 return(0);
1132 }
1133
iiAddCprocTop(const char * libname,const char * procname,BOOLEAN pstatic,BOOLEAN (* func)(leftv res,leftv v))1134 int iiAddCprocTop(const char *libname, const char *procname, BOOLEAN pstatic,
1135 BOOLEAN(*func)(leftv res, leftv v))
1136 {
1137 int r=iiAddCproc(libname,procname,pstatic,func);
1138 package s=currPack;
1139 currPack=basePack;
1140 if (r) r=iiAddCproc(libname,procname,pstatic,func);
1141 currPack=s;
1142 return r;
1143 }
1144
1145 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1146 #ifdef HAVE_DYNAMIC_LOADING
1147 #include <map>
1148 #include <string>
1149 #include <pthread.h>
1150
1151 THREAD_VAR std::map<std::string, void *> *dyn_modules;
1152
registered_dyn_module(char * fullname)1153 bool registered_dyn_module(char *fullname) {
1154 if (dyn_modules == NULL)
1155 return false;
1156 std::string fname = fullname;
1157 return dyn_modules->count(fname) != 0;
1158 }
1159
register_dyn_module(char * fullname,void * handle)1160 void register_dyn_module(char *fullname, void * handle) {
1161 std::string fname = fullname;
1162 if (dyn_modules == NULL)
1163 dyn_modules = new std::map<std::string, void *>();
1164 dyn_modules->insert(std::pair<std::string, void *>(fname, handle));
1165 }
1166
close_all_dyn_modules()1167 void close_all_dyn_modules() {
1168 for (std::map<std::string, void *>::iterator it = dyn_modules->begin();
1169 it != dyn_modules->end();
1170 it++)
1171 {
1172 dynl_close(it->second);
1173 }
1174 delete dyn_modules;
1175 dyn_modules = NULL;
1176 }
load_modules_aux(const char * newlib,char * fullname,BOOLEAN autoexport)1177 BOOLEAN load_modules_aux(const char *newlib, char *fullname, BOOLEAN autoexport)
1178 {
1179 /*
1180 typedef int (*fktn_t)(int(*iiAddCproc)(const char *libname, const char *procname,
1181 BOOLEAN pstatic,
1182 BOOLEAN(*func)(leftv res, leftv v)));
1183 */
1184 SModulFunc_t fktn;
1185 idhdl pl;
1186 char *plib = iiConvName(newlib);
1187 BOOLEAN RET=TRUE;
1188 int token;
1189 int l=si_max((int)strlen(fullname),(int)strlen(newlib))+3;
1190 char *FullName=(char*)omAlloc0(l);
1191
1192 if( *fullname != '/' && *fullname != '.' )
1193 sprintf(FullName, "./%s", newlib);
1194 else strncpy(FullName, fullname,l);
1195
1196
1197 if(IsCmd(plib, token))
1198 {
1199 Werror("'%s' is resered identifier\n", plib);
1200 goto load_modules_end;
1201 }
1202 pl = basePack->idroot->get(plib,0); /* packages only in top level
1203 (see enterid) */
1204 if ((pl!=NULL)
1205 &&(IDTYP(pl)==PACKAGE_CMD))
1206 {
1207 if(IDPACKAGE(pl)->language==LANG_C)
1208 {
1209 if (BVERBOSE(V_LOAD_LIB)) Warn( "%s already loaded as package", newlib);
1210 omFree(plib);
1211 return FALSE;
1212 }
1213 else if(IDPACKAGE(pl)->language==LANG_MIX)
1214 {
1215 if (BVERBOSE(V_LOAD_LIB)) Warn( "%s contain binary parts, cannot load", newlib);
1216 omFree(plib);
1217 return FALSE;
1218 }
1219 }
1220 else
1221 {
1222 pl = enterid( plib,0, PACKAGE_CMD, &IDROOT, TRUE );
1223 omFree(plib); /* enterid copied plib*/
1224 IDPACKAGE(pl)->libname=omStrDup(newlib);
1225 }
1226 IDPACKAGE(pl)->language = LANG_C;
1227 if (dynl_check_opened(FullName))
1228 {
1229 if (BVERBOSE(V_LOAD_LIB)) Warn( "%s already loaded as C library", fullname);
1230 omFreeSize(FullName,l);
1231 return FALSE;
1232 }
1233 if((IDPACKAGE(pl)->handle=dynl_open(FullName))==(void *)NULL)
1234 {
1235 Werror("dynl_open failed:%s", dynl_error());
1236 Werror("%s not found", newlib);
1237 killhdl2(pl,&(basePack->idroot),NULL); // remove package
1238 goto load_modules_end;
1239 }
1240 else
1241 {
1242 SModulFunctions sModulFunctions;
1243
1244 package s=currPack;
1245 currPack=IDPACKAGE(pl);
1246 fktn = (SModulFunc_t)dynl_sym(IDPACKAGE(pl)->handle, "mod_init");
1247 if( fktn!= NULL)
1248 {
1249 sModulFunctions.iiArithAddCmd = iiArithAddCmd;
1250 if (autoexport) sModulFunctions.iiAddCproc = iiAddCprocTop;
1251 else sModulFunctions.iiAddCproc = iiAddCproc;
1252 int ver=(*fktn)(&sModulFunctions);
1253 if (ver==MAX_TOK)
1254 {
1255 if (BVERBOSE(V_LOAD_LIB)) Print( "// ** loaded %s\n", fullname);
1256 }
1257 else
1258 {
1259 Warn("loaded %s for a different version of Singular(expected MAX_TOK: %d, got %d)",fullname,MAX_TOK,ver);
1260 }
1261 currPack->loaded=1;
1262 currPack=s; /* reset currPack to previous */
1263 register_dyn_module(fullname, IDPACKAGE(pl)->handle);
1264 RET=FALSE;
1265 }
1266 else
1267 {
1268 Werror("mod_init not found:: %s\nThis is probably not a dynamic module for Singular!\n", dynl_error());
1269 errorreported=0;
1270 if(IDPACKAGE(pl)->idroot==NULL)
1271 killhdl2(pl,&(basePack->idroot),NULL); // remove package
1272 }
1273 }
1274
1275 load_modules_end:
1276 omFreeSize(FullName,l);
1277 return RET;
1278 }
1279
load_modules(const char * newlib,char * fullname,BOOLEAN autoexport)1280 BOOLEAN load_modules(const char *newlib, char *fullname, BOOLEAN autoexport)
1281 {
1282 GLOBAL_VAR static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
1283 pthread_mutex_lock(&mutex);
1284 BOOLEAN r = load_modules_aux(newlib, fullname, autoexport);
1285 pthread_mutex_unlock(&mutex);
1286 return r;
1287 }
1288 #endif /* HAVE_DYNAMIC_LOADING */
1289 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
load_builtin(const char * newlib,BOOLEAN autoexport,SModulFunc_t init)1290 BOOLEAN load_builtin(const char *newlib, BOOLEAN autoexport, SModulFunc_t init)
1291 {
1292 int iiAddCproc(const char *libname, const char *procname, BOOLEAN pstatic,
1293 BOOLEAN(*func)(leftv res, leftv v));
1294 /*
1295 typedef int (*fktn_t)(int(*iiAddCproc)(const char *libname, const char *procname,
1296 BOOLEAN pstatic,
1297 BOOLEAN(*func)(leftv res, leftv v)));
1298 */
1299 // SModulFunc_t fktn;
1300 idhdl pl;
1301 char *plib = iiConvName(newlib);
1302 // BOOLEAN RET=TRUE;
1303 // int token;
1304
1305 pl = basePack->idroot->get(plib,0); // search PACKAGE only in Top
1306 if ((pl!=NULL)
1307 &&(IDTYP(pl)==PACKAGE_CMD))
1308 {
1309 if(IDPACKAGE(pl)->language==LANG_C)
1310 {
1311 if (BVERBOSE(V_LOAD_LIB)) Warn( "(builtin) %s already loaded", newlib);
1312 omFree(plib);
1313 return FALSE;
1314 }
1315 }
1316 else
1317 {
1318 pl = enterid( plib,0, PACKAGE_CMD, &IDROOT, TRUE );
1319 IDPACKAGE(pl)->libname=omStrDup(newlib);
1320 }
1321 omFree(plib);
1322 IDPACKAGE(pl)->language = LANG_C;
1323
1324 IDPACKAGE(pl)->handle=(void *)NULL;
1325 SModulFunctions sModulFunctions;
1326
1327 package s=currPack;
1328 currPack=IDPACKAGE(pl);
1329 if( init!= NULL)
1330 {
1331 sModulFunctions.iiArithAddCmd = iiArithAddCmd;
1332 if (autoexport) sModulFunctions.iiAddCproc = iiAddCprocTop;
1333 else sModulFunctions.iiAddCproc = iiAddCproc;
1334 (*init)(&sModulFunctions);
1335 }
1336 if (BVERBOSE(V_LOAD_LIB)) Print( "// ** loaded (builtin) %s \n", newlib);
1337 currPack->loaded=1;
1338 currPack=s;
1339
1340 return FALSE;
1341 }
1342 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
module_help_main(const char * newlib,const char * help)1343 void module_help_main(const char *newlib,const char *help)
1344 {
1345 char *plib = iiConvName(newlib);
1346 idhdl pl = basePack->idroot->get(plib,0);
1347 if ((pl==NULL)||(IDTYP(pl)!=PACKAGE_CMD))
1348 Werror(">>%s<< is not a package (trying to add package help)",plib);
1349 else
1350 {
1351 package s=currPack;
1352 currPack=IDPACKAGE(pl);
1353 idhdl h=enterid("info",0,STRING_CMD,&IDROOT,FALSE);
1354 IDSTRING(h)=omStrDup(help);
1355 currPack=s;
1356 }
1357 }
module_help_proc(const char * newlib,const char * p,const char * help)1358 void module_help_proc(const char *newlib,const char *p, const char *help)
1359 {
1360 char *plib = iiConvName(newlib);
1361 idhdl pl = basePack->idroot->get(plib,0);
1362 if ((pl==NULL)||(IDTYP(pl)!=PACKAGE_CMD))
1363 Werror(">>%s<< is not a package(trying to add help for %s)",plib,p);
1364 else
1365 {
1366 package s=currPack;
1367 currPack=IDPACKAGE(pl);
1368 char buff[256];
1369 buff[255]='\0';
1370 strncpy(buff,p,255);
1371 strncat(buff,"_help",255-strlen(p));
1372 idhdl h=enterid(buff,0,STRING_CMD,&IDROOT,FALSE);
1373 IDSTRING(h)=omStrDup(help);
1374 currPack=s;
1375 }
1376 }
1377 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1378
1379 #ifdef HAVE_DYNAMIC_LOADING
1380 // loads a dynamic module from the binary path and returns a named function
1381 // returns NULL, if something fails
binary_module_function(const char * newlib,const char * funcname)1382 void* binary_module_function(const char* newlib, const char* funcname)
1383 {
1384 void* result = NULL;
1385
1386 const char* bin_dir = feGetResource('b');
1387 if (!bin_dir) { return NULL; }
1388
1389 char path_name[MAXPATHLEN];
1390 sprintf(path_name, "%s%s%s.%s", bin_dir, DIR_SEPP, newlib, MODULE_SUFFIX_STRING);
1391
1392 void* openlib = dynl_open(path_name);
1393 if(!openlib)
1394 {
1395 Werror("dynl_open of %s failed:%s", path_name, dynl_error());
1396 return NULL;
1397 }
1398 result = dynl_sym(openlib, funcname);
1399 if (!result) Werror("%s: %s\n", funcname, dynl_error());
1400
1401 return result;
1402 }
1403 #endif
1404
1405 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
mytoupper(char c)1406 char mytoupper(char c)
1407 {
1408 if(c>=97 && c<=(97+26)) c-=32;
1409 return(c);
1410 }
1411
mytolower(char c)1412 char mytolower(char c)
1413 {
1414 if(c>=65 && c<=(65+26)) c+=32;
1415 return(c);
1416 }
1417
1418 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1419 //#if defined(WINNT)
1420 //# define FS_SEP '\\'
1421 //#else
1422 //# define FS_SEP '/'
1423 //#endif
1424
iiConvName(const char * libname)1425 char *iiConvName(const char *libname)
1426 {
1427 char *tmpname = omStrDup(libname);
1428 char *p = strrchr(tmpname, DIR_SEP);
1429 char *r;
1430 if(p==NULL) p = tmpname; else p++;
1431 // p is now the start of the file name (without path)
1432 r=p;
1433 while(isalnum(*r)||(*r=='_')) r++;
1434 // r point the the end of the main part of the filename
1435 *r = '\0';
1436 r = omStrDup(p);
1437 *r = mytoupper(*r);
1438 // printf("iiConvName: '%s' '%s' => '%s'\n", libname, tmpname, r);
1439 omFree((ADDRESS)tmpname);
1440
1441 return(r);
1442 }
1443
1444 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1445 #if 0 /* debug only */
1446 void piShowProcList()
1447 {
1448 idhdl h;
1449 procinfo *proc;
1450 char *name;
1451
1452 Print( "%-15s %20s %s,%s %s,%s %s,%s\n", "Library", "function",
1453 "line", "start", "line", "body", "line", "example");
1454 for(h = IDROOT; h != NULL; h = IDNEXT(h))
1455 {
1456 if(IDTYP(h) == PROC_CMD)
1457 {
1458 proc = IDPROC(h);
1459 if(strcmp(proc->procname, IDID(h))!=0)
1460 {
1461 name = (char *)omAlloc(strlen(IDID(h))+strlen(proc->procname)+4);
1462 sprintf(name, "%s -> %s", IDID(h), proc->procname);
1463 Print( "%d %-15s %20s ", proc->is_static ? 1 : 0, proc->libname, name);
1464 omFree((ADDRESS)name);
1465 }
1466 else
1467 Print( "%d %-15s %20s ", proc->is_static ? 1 : 0, proc->libname,
1468 proc->procname);
1469 if(proc->language==LANG_SINGULAR)
1470 Print("line %-5ld %4d,%-5ld %4d,%-5ld\n",
1471 proc->data.s.proc_start,
1472 proc->data.s.body_lineno, proc->data.s.body_start,
1473 proc->data.s.example_lineno, proc->data.s.example_start);
1474 else if(proc->language==LANG_C)
1475 PrintS("type: object\n");
1476 }
1477 }
1478 }
1479 #endif
1480
1481 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1482 //char *iiLineNo(char *procname, int lineno)
1483 //{
1484 // char buf[256];
1485 // idhdl pn = ggetid(procname);
1486 // procinfo *pi = IDPROC(pn);
1487 //
1488 // sprintf(buf, "%s %3d\0", procname, lineno);
1489 // //sprintf(buf, "%s::%s %3d\0", pi->libname, pi->procname,
1490 // // lineno + pi->data.s.body_lineno);
1491 // return(buf);
1492 //}
1493 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1494 #ifdef HAVE_LIBPARSER
push(const char *,char * libn)1495 void libstack::push(const char */*p*/, char *libn)
1496 {
1497 libstackv lp;
1498 if( !iiGetLibStatus(libn))
1499 {
1500 for(lp = this;lp!=NULL;lp=lp->next)
1501 {
1502 if(strcmp(lp->get(), libn)==0) break;
1503 }
1504 if(lp==NULL)
1505 {
1506 libstackv ls = (libstack *)omAlloc0Bin(libstack_bin);
1507 ls->next = this;
1508 ls->libname = omStrDup(libn);
1509 ls->to_be_done = TRUE;
1510 if(library_stack != NULL) ls->cnt = library_stack->cnt+1; else ls->cnt = 0;
1511 library_stack = ls;
1512 }
1513 }
1514 }
1515
pop(const char *)1516 libstackv libstack::pop(const char */*p*/)
1517 {
1518 libstackv ls = this;
1519 //omFree((ADDRESS)ls->libname);
1520 library_stack = ls->next;
1521 omFreeBin((ADDRESS)ls, libstack_bin);
1522 return(library_stack);
1523 }
1524
1525 #endif /* HAVE_LIBPARSER */
1526 /*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
1527