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source: cpp/frams/param/param.cpp @ 654

Last change on this file since 654 was 654, checked in by Maciej Komosinski, 7 years ago
More strict checking for improper flag/type combinations
Property svn:eol-style set to `native`
File size: 29.5 KB

Line
1	// This file is a part of Framsticks SDK. http://www.framsticks.com/
2	// Copyright (C) 1999-2017 Maciej Komosinski and Szymon Ulatowski.
3	// See LICENSE.txt for details.
4
5	#include <stdio.h>
6	#include <ctype.h>
7
8	#include "param.h"
9	#include <frams/util/extvalue.h>
10	#include "common/log.h"
11	#include <frams/util/sstringutils.h>
12
13	//#define SAVE_ALL_NAMES
14	#define SAVE_SELECTED_NAMES
15	#define WARN_MISSING_NAME
16
17	char MakeCodeGuardHappy;
18
19	ParamEntry empty_paramtab[] =
20	{ { "Empty", 1, 0, "Empty", }, { 0, 0, 0, }, };
21
22	/** return: true if tilde was found, false if finished at EOF */
23	static bool readUntilTilde(VirtFILE *f, SString &s)
24	{
25	SString temp;
26	int z;
27	char last_char = 0;
28	bool tilde_found = false;
29	while ((z = f->Vgetc()) != EOF)
30	{
31	if (z == '~')
32	if (last_char != '\\') { tilde_found = true; break; }
33	last_char = (char)z;
34	temp += last_char;
35	}
36	s = temp;
37	return tilde_found;
38	}
39
40	static const char strchrlimit(const char t, int ch, const char *limit)
41	{
42	if (limit < t) return NULL;
43	return (const char)memchr((const void)t, ch, limit - t);
44	}
45
46	void ParamInterface::copyFrom(ParamInterface *src)
47	{
48	int n = getPropCount();
49	ExtValue v;
50	int j;
51	for (int i = 0; i < n; i++)
52	if ((!(flags(i)&PARAM_READONLY))
53	&& (*type(i) != 'p'))
54	{
55	j = src->findId(id(i));
56	if (j < 0) continue;
57	src->get(j, v);
58	set(i, v);
59	}
60	}
61
62	void ParamInterface::quickCopyFrom(ParamInterface *src)
63	{
64	int n = getPropCount();
65	ExtValue v;
66	for (int i = 0; i < n; i++)
67	if ((!(flags(i)&PARAM_READONLY))
68	&& (*type(i) != 'p'))
69	{
70	src->get(i, v);
71	set(i, v);
72	}
73	}
74
75	int ParamInterface::getMinMax(int prop, paInt& minumum, paInt& maximum, paInt &def)
76	{
77	return getMinMax(type(prop), minumum, maximum, def);
78	}
79
80	int ParamInterface::getMinMax(int prop, double& minumum, double& maximum, double& def)
81	{
82	return getMinMax(type(prop), minumum, maximum, def);
83	}
84
85	int ParamInterface::getMinMax(int prop, int& minumum, int& maximum, SString& def)
86	{
87	return getMinMax(type(prop), minumum, maximum, def);
88	}
89
90	int ParamInterface::getMinMax(const char* t, paInt& minumum, paInt& maximum, paInt &def)
91	{
92	while (t) if (t == ' ') break; else t++;
93	return sscanf(t, PA_INT_SCANF " " PA_INT_SCANF " " PA_INT_SCANF, &minumum, &maximum, &def);
94	}
95
96	int ParamInterface::getMinMax(const char* t, double& minumum, double& maximum, double& def)
97	{
98	while (t) if (t == ' ') break; else t++;
99	return sscanf(t, "%lg %lg %lg", &minumum, &maximum, &def);
100	}
101
102	int ParamInterface::getMinMax(const char* t, int& minumum, int& maximum, SString& def)
103	{
104	while (t) if (t == ' ') break; else t++;
105	int ret = sscanf(t, "%d %d", &minumum, &maximum);
106	def = SString::empty();
107	if (ret == 2)
108	{
109	while (*t == ' ') t++;
110	for (int skip_fields = 2; skip_fields > 0; skip_fields--)
111	{
112	while (t) if (t == ' ') break; else t++;
113	while (*t == ' ') t++;
114	}
115	if (*t)
116	{
117	const char* end = strchr(t, '~');
118	if (!end)
119	end = t + strlen(t);
120	while ((end > t) && (end[-1] == ' ')) end--;
121	def = SString(t, end - t);
122	}
123	return 3;
124	}
125	else
126	return ret;
127	}
128
129	void ParamInterface::setDefault()
130	{
131	for (int i = 0; i < getPropCount(); i++)
132	setDefault(i);
133	}
134
135	void ParamInterface::setMin()
136	{
137	for (int i = 0; i < getPropCount(); i++)
138	setMin(i);
139	}
140
141	void ParamInterface::setMax()
142	{
143	for (int i = 0; i < getPropCount(); i++)
144	setMax(i);
145	}
146
147	void ParamInterface::setDefault(int i)
148	{
149	const char *t = type(i);
150	switch (*t)
151	{
152	case 'f':
153	{
154	double mn = 0, mx = 0, def = 0;
155	if (getMinMax(t, mn, mx, def) < 3) def = mn;
156	setDouble(i, def);
157	}
158	break;
159	case 'd':
160	{
161	paInt mn = 0, mx = 0, def = 0;
162	if (getMinMax(t, mn, mx, def) < 3) def = mn;
163	setInt(i, def);
164	}
165	break;
166	case 's': case 'x':
167	{
168	int mn, mx; SString def;
169	getMinMax(t, mn, mx, def);
170	if (*t == 's')
171	setString(i, def);
172	else
173	{
174	if (def.len() > 0) setExtValue(i, ExtValue(def)); else setExtValue(i, ExtValue::empty());
175	}
176	}
177	break;
178	case 'o':
179	setObject(i, ExtObject::empty());
180	break;
181	}
182	}
183
184	void ParamInterface::setMin(int i)
185	{
186	const char *t = type(i);
187	switch (*t)
188	{
189	case 'f':
190	{
191	double mn = 0, mx = 0, def = 0;
192	getMinMax(t, mn, mx, def);
193	setDouble(i, mn);
194	}
195	break;
196	case 'd':
197	{
198	paInt mn = 0, mx = 0, def = 0;
199	getMinMax(t, mn, mx, def);
200	setInt(i, mn);
201	}
202	break;
203	default: set(i, "");
204	}
205	}
206
207	void ParamInterface::setMax(int i)
208	{
209	const char *t = type(i);
210	switch (*t)
211	{
212	case 'f':
213	{
214	double mn = 0, mx = 0, def = 0;
215	getMinMax(t, mn, mx, def);
216	setDouble(i, mx);
217	}
218	break;
219	case 'd':
220	{
221	paInt mn = 0, mx = 0, def = 0;
222	getMinMax(t, mn, mx, def);
223	setInt(i, mx);
224	}
225	break;
226	default: set(i, "");
227	}
228	}
229
230	SString ParamInterface::getStringById(const char*prop)
231	{
232	int i = findId(prop); if (i >= 0) return getString(i); else return SString();
233	}
234	paInt ParamInterface::getIntById(const char*prop)
235	{
236	int i = findId(prop); if (i >= 0) return getInt(i); else return 0;
237	}
238	double ParamInterface::getDoubleById(const char*prop)
239	{
240	int i = findId(prop); if (i >= 0) return getDouble(i); else return 0;
241	}
242	ExtObject ParamInterface::getObjectById(const char*prop)
243	{
244	int i = findId(prop); if (i >= 0) return getObject(i); else return ExtObject();
245	}
246	ExtValue ParamInterface::getExtValueById(const char*prop)
247	{
248	int i = findId(prop); if (i >= 0) return getExtValue(i); else return ExtValue();
249	}
250
251	int ParamInterface::setIntById(const char* prop, paInt v)
252	{
253	int i = findId(prop); if (i >= 0) return setInt(i, v); else return PSET_NOPROPERTY;
254	}
255	int ParamInterface::setDoubleById(const char* prop, double v)
256	{
257	int i = findId(prop); if (i >= 0) return setDouble(i, v); else return PSET_NOPROPERTY;
258	}
259	int ParamInterface::setStringById(const char* prop, const SString &v)
260	{
261	int i = findId(prop); if (i >= 0) return setString(i, v); else return PSET_NOPROPERTY;
262	}
263	int ParamInterface::setObjectById(const char* prop, const ExtObject &v)
264	{
265	int i = findId(prop); if (i >= 0) return setObject(i, v); else return PSET_NOPROPERTY;
266	}
267	int ParamInterface::setExtValueById(const char* prop, const ExtValue &v)
268	{
269	int i = findId(prop); if (i >= 0) return setExtValue(i, v); else return PSET_NOPROPERTY;
270	}
271	int ParamInterface::setById(const char* prop, const ExtValue &v)
272	{
273	int i = findId(prop); if (i >= 0) return set(i, v); else return PSET_NOPROPERTY;
274	}
275
276	int ParamInterface::save(VirtFILE* f, const char* altname, bool force)
277	{
278	const char *p;
279	SString ws;
280	int err = 0, i;
281	bool withname = false;
282	if ((altname == NULL) \|\| (altname[0] != 0))
283	{
284	err \|= (f->Vputs(altname ? altname : getName()) == EOF);
285	err \|= (f->Vputs(":\n") == EOF);
286	withname = true;
287	}
288	for (i = 0; p = id(i); i++)
289	err \|= saveprop(f, i, p, force);
290	if (withname)
291	err \|= (f->Vputs("\n") == EOF);
292	return err;
293	}
294
295	const char* ParamInterface::SERIALIZATION_PREFIX = "@Serialized:";
296
297	int ParamInterface::saveprop(VirtFILE* f, int i, const char* p, bool force)
298	{
299	if ((flags(i)&PARAM_DONTSAVE) && (!force)) return 0;
300	const char *typ = type(i);
301	if (*typ == 'p') return 0;
302
303	const char t, w;
304	SString ws;
305	int err = 0, cr;
306
307	err \|= (f->Vputs(p) == EOF); f->Vputc(':');
308	cr = 0;
309	if ((typ == 'x') \|\| (typ == 'o'))
310	{
311	ExtValue ex;
312	get(i, ex);
313	ws = SString(SERIALIZATION_PREFIX) + ex.serialize(NativeSerialization);
314	}
315	else
316	ws = get(i);
317	quoteTilde(ws);
318	w = ws.c_str();
319	if (ws.len() > 50) cr = 1;
320	else for (t = w; t; t++) if ((t == 10) \|\| (*t == 13)) { cr = 1; break; }
321	if (cr) f->Vputs("~\n");
322	err \|= (f->Vputs(w) == EOF);
323	err \|= (f->Vputs(cr ? "~\n" : "\n") == EOF);
324	return err;
325	}
326
327
328	int SimpleAbstractParam::isequal(int i, void* defdata)
329	{ // defdata->member == object->member ?
330	void *backup = object;
331	switch (type(i)[0])
332	{
333	case 'd':
334	{
335	select(defdata);
336	paInt x = getInt(i);
337	select(backup);
338	return x == getInt(i);
339	}
340	case 'f':
341	{
342	select(defdata);
343	double x = getDouble(i);
344	select(backup);
345	return x == getDouble(i);
346	}
347	case 's':
348	{
349	select(defdata);
350	SString x = getString(i);
351	select(backup);
352	return x == getString(i);
353	}
354	}
355	return 1;
356	}
357
358	void SimpleAbstractParam::save2(SString& f, void *defdata, bool addcr, bool all_names)
359	{ // defdata!=NULL -> does not save default values
360	const char *p;
361	int i;
362	int needlabel = 0;
363	int first = 1;
364	SString val;
365	SString t;
366	int fl;
367	// t+=SString(getName()); t+=':';
368	for (i = 0; p = id(i); i++)
369	if (!((fl = flags(i))&PARAM_DONTSAVE))
370	{
371	if (defdata && isequal(i, defdata))
372	needlabel = 1;
373	else
374	{
375	if (!first) t += ", ";
376	#ifndef SAVE_ALL_NAMES
377	#ifdef SAVE_SELECTED_NAMES
378	if (needlabel \|\| all_names \|\| !(fl & PARAM_CANOMITNAME))
379	#else
380	if (needlabel)
381	#endif
382	#endif
383	{
384	t += p; t += "="; needlabel = 0;
385	}
386	if (type(i)[0] == 's')
387	{ // string - special case
388	SString str = getString(i);
389	if (strContainsOneOf(str.c_str(), ", \\\n\r\t\""))
390	{
391	t += "\"";
392	sstringQuote(str);
393	t += str;
394	t += "\"";
395	}
396	else
397	t += str;
398	}
399	else
400	t += get(i);
401	first = 0;
402	}
403	}
404	if (addcr)
405	t += "\n";
406	f += t;
407	}
408
409	static void closingTildeError(ParamInterface pi, VirtFILE file, int field_index)
410	{
411	SString fileinfo;
412	const char* fname = file->VgetPath();
413	if (fname != NULL)
414	fileinfo = SString::sprintf(" while reading from '%s'", fname);
415	SString field;
416	if (field_index >= 0)
417	field = SString::sprintf("'%s.%s'", pi->getName(), pi->id(field_index));
418	else
419	field = SString::sprintf("unknown property of '%s'", pi->getName());
420	logPrintf("ParamInterface", "load", LOG_WARN, "Closing '~' (tilde) not found in %s%s", field.c_str(), fileinfo.c_str());
421	}
422
423	int ParamInterface::load(VirtFILE* f, bool warn_unknown_fields, bool abortable, int linenum)
424	{
425	SString buf;
426	int i;
427	const char p, p0;
428	int p_len;
429	bool loaded;
430	int fields_loaded = 0;
431	int unexpected_line = 0;
432	vector<bool> seen;
433	seen.resize(getPropCount());
434	if ((i = findId("beforeLoad")) >= 0)
435	call(i, NULL, NULL);
436	while (((!abortable) \|\| (!*abortable)) && loadSStringLine(f, buf))
437	{
438	if (linenum) (*linenum)++;
439	const char* t = buf.c_str();
440	p0 = t; while (isblank(*p0)) p0++;
441	if (!*p0) break;
442	if (p0[0] == '#') { unexpected_line = 0; continue; }
443	p = strchr(p0, ':');
444	if (!p)
445	{
446	switch (unexpected_line)
447	{
448	case 0:
449	logPrintf("ParamInterface", "load", LOG_WARN, "Ignored unexpected line %s while reading object '%s'",
450	linenum ?
451	SString::sprintf("%d", *linenum).c_str()
452	: SString::sprintf("'%s'", p0).c_str(),
453	getName());
454	break;
455	case 1:
456	logPrintf("ParamInterface", "load", LOG_WARN, "The following line(s) were also unexpected and were ignored");
457	break;
458	}
459	unexpected_line++;
460	continue;
461	}
462	unexpected_line = 0;
463	p_len = (int)(p - p0);
464	loaded = false;
465	if (p_len && ((i = findIdn(p0, p_len)) >= 0))
466	{
467	if (seen[i])
468	{
469	SString fileinfo;
470	const char* fname = f->VgetPath();
471	if (fname != NULL)
472	{
473	fileinfo = SString::sprintf(" while reading from '%s'", fname);
474	if (linenum)
475	fileinfo += SString::sprintf(" (line %d)", *linenum);
476	}
477	logPrintf("ParamInterface", "load", LOG_WARN, "Multiple '%s.%s' fields found%s", getName(), id(i), fileinfo.c_str());
478	}
479	else
480	seen[i] = true;
481	if (!(flags(i)&PARAM_DONTLOAD))
482	{
483	if (p0[p_len + 1] == '~')
484	{
485	SString s;
486	if (!readUntilTilde(f, s))
487	closingTildeError(this, f, i);
488	int lfcount = 1;
489	const char* tmp = s.c_str();
490	while (tmp)
491	if ((tmp = strchr(tmp, '\n')))
492	{
493	lfcount++; tmp++;
494	}
495	removeCR(s);
496	int ch; while ((ch = f->Vgetc()) != EOF) if (ch == '\n') break;
497	unquoteTilde(s);
498	if (linenum && (flags(i)&PARAM_LINECOMMENT))
499	s = SString::sprintf("@file %s\n@line %d\n", f->VgetPath(), *linenum + 1) + s;
500	set(i, s.c_str());
501	if (linenum)
502	(*linenum) += lfcount;
503	}
504	else
505	{
506	set(i, p0 + p_len + 1);
507	}
508	fields_loaded++;
509	loaded = true;
510	}
511	}
512	else if (warn_unknown_fields)
513	{
514	SString name(p0, p_len);
515	logPrintf("ParamInterface", "load", LOG_WARN, "Ignored unknown property '%s' while reading object '%s'", name.c_str(), getName());
516	}
517
518	if ((!loaded) && (p0[p_len + 1] == '~'))
519	{ // eat unrecognized multiline field
520	SString s;
521	if (!readUntilTilde(f, s))
522	closingTildeError(this, f, -1);
523	if (linenum)
524	{
525	const char* tmp = s.c_str();
526	int lfcount = 1;
527	while (tmp)
528	if ((tmp = strchr(tmp, '\n')))
529	{
530	lfcount++; tmp++;
531	}
532	(*linenum) += lfcount;
533	}
534	int ch; while ((ch = f->Vgetc()) != EOF) if (ch == '\n') break;
535	}
536	}
537	if ((i = findId("afterLoad")) >= 0)
538	call(i, NULL, NULL);
539	return fields_loaded;
540	}
541
542
543	/*
544	SString SimpleAbstractParam::getString(int i)
545	{
546	char *t;
547	switch (*(t=type(i)))
548	{
549	case 'd':
550	{
551	for (i=atol(get(i));i>=0;i--) if (t) t=strchr(t+1,'~');
552	if (t)
553	{
554	t++;
555	char *t2=strchr(t,'~');
556	if (!t2) t2=t+strlen(t);
557	SString str;
558	strncpy(str.directWrite(t2-t),t,t2-t);
559	str.endWrite(t2-t);
560	return str;
561	}
562	}
563	}
564	return get(i);
565	}
566	*/
567
568	int ParamInterface::findId(const char* n)
569	{
570	int i; const char *p;
571	for (i = 0; p = id(i); i++) if (!strcmp(n, p)) return i;
572	return -1;
573	}
574
575	int ParamInterface::findIdn(const char* naz, int n)
576	{
577	int i; const char *p;
578	for (i = 0; p = id(i); i++) if ((!strncmp(naz, p, n)) && (!p[n])) return i;
579	return -1;
580	}
581
582	void ParamInterface::get(int i, ExtValue &ret)
583	{
584	switch (type(i)[0])
585	{
586	case 'd': ret.setInt(getInt(i)); break;
587	case 'f': ret.setDouble(getDouble(i)); break;
588	case 's': ret.setString(getString(i)); break;
589	case 'o': ret.setObject(getObject(i)); break;
590	case 'x': ret = getExtValue(i); break;
591	default: logPrintf("ParamInterface", "get", LOG_ERROR, "'%s.%s' is not a field", getName(), id(i));
592	}
593	}
594
595	int ParamInterface::setInt(int i, const char* str, bool strict)
596	{
597	paInt value;
598	if (!ExtValue::parseInt(str, value, strict, true))
599	{
600	paInt mn, mx, def;
601	if (getMinMax(i, mn, mx, def) >= 3)
602	return setInt(i, def) \| PSET_PARSEFAILED;
603	else
604	return setInt(i, (paInt)0) \| PSET_PARSEFAILED;
605	}
606	else
607	return setInt(i, value);
608	}
609
610	int ParamInterface::setDouble(int i, const char* str)
611	{
612	double value;
613	if (!ExtValue::parseDouble(str, value, true))
614	{
615	double mn, mx, def;
616	if (getMinMax(i, mn, mx, def) >= 3)
617	return setDouble(i, def) \| PSET_PARSEFAILED;
618	else
619	return setDouble(i, (double)0) \| PSET_PARSEFAILED;
620	}
621	else
622	return setDouble(i, value);
623	}
624
625	int ParamInterface::set(int i, const ExtValue &v)
626	{
627	switch (type(i)[0])
628	{
629	case 'd':
630	if ((v.type == TInt) \|\| (v.type == TDouble)) return setInt(i, v.getInt());
631	else
632	{
633	if (v.type == TObj)
634	{
635	logPrintf("ParamInterface", "set", LOG_ERROR, "Setting int '%s.%s' from object reference (%s)", getName(), id(i), v.getString().c_str());
636	return 0;
637	}
638	else
639	return setInt(i, v.getString().c_str());
640	}
641	case 'f':
642	if ((v.type == TInt) \|\| (v.type == TDouble)) return setDouble(i, v.getDouble());
643	else
644	{
645	if (v.type == TObj)
646	{
647	logPrintf("ParamInterface", "set", LOG_ERROR, "Setting float '%s.%s' from object reference (%s)", getName(), id(i), v.getString().c_str());
648	return 0;
649	}
650	else
651	return setDouble(i, v.getString().c_str());
652	}
653	case 's': { SString t = v.getString(); return setString(i, t); }
654	case 'o':
655	if ((v.type != TUnknown) && (v.type != TObj))
656	logPrintf("ParamInterface", "set", LOG_ERROR, "Setting object '%s.%s' from %s", getName(), id(i), v.typeAndValue().c_str());
657	else
658	return setObject(i, v.getObject());
659	break;
660	case 'x': return setExtValue(i, v);
661	default: logPrintf("ParamInterface", "set", LOG_ERROR, "'%s.%s' is not a field", getName(), id(i));
662	}
663	return 0;
664	}
665
666	int ParamInterface::set(int i, const char *v, bool strict)
667	{
668	char typ = type(i)[0];
669	switch (typ)
670	{
671	case 'd': return setInt(i, v, strict);
672	case 'f': return setDouble(i, v);
673	case 's': { SString t(v); return setString(i, t); }
674	case 'x': case 'o':
675	{
676	ExtValue e;
677	const char* after;
678	if (!strncmp(v, SERIALIZATION_PREFIX, strlen(SERIALIZATION_PREFIX)))
679	{
680	after = e.deserialize(v + strlen(SERIALIZATION_PREFIX));
681	if ((after == NULL) \|\| (*after))
682	{
683	logPrintf("ParamInterface", "set", LOG_ERROR, "serialization format mismatch in %s.%s", (getName() ? getName() : "<Unknown>"), id(i));
684	e.setEmpty();
685	}
686	}
687	else if ((after = e.parseNumber(v)) && (*after == 0)) //consumed the whole string
688	{
689	//OK!
690	}
691	else
692	{
693	e.setString(SString(v));
694	}
695	if (typ == 'x')
696	return setExtValue(i, e);
697	else
698	return setObject(i, e.getObject());
699	}
700	}
701	return 0;
702	}
703
704	SString ParamInterface::getText(int i)
705	{
706	const char *t;
707	if ((*(t = type(i))) == 'd')
708	{
709	paInt mn, mx, def;
710	int value = getInt(i);
711	if (getMinMax(t, mn, mx, def) >= 2)
712	{
713	if (value > mx)
714	return get(i);
715	value -= mn;
716	}
717	if (value < 0) return get(i);
718	for (; value >= 0; value--) if (t) t = strchr(t + 1, '~');
719	if (t)
720	{
721	t++;
722	const char *t2 = strchr(t, '~');
723	if (!t2) t2 = t + strlen(t);
724	return SString(t, (int)(t2 - t));
725	}
726	}
727	return get(i);
728	}
729
730	SString ParamInterface::get(int i)
731	{
732	switch (type(i)[0])
733	{
734	case 'd': return SString::valueOf(getInt(i));
735	case 'f': return SString::valueOf(getDouble(i));
736	case 's': return getString(i);
737	}
738	ExtValue v;
739	get(i, v);
740	return v.getString();
741	}
742
743	bool ParamInterface::isValidTypeDescription(const char* t)
744	{
745	if (t == NULL) return false;
746	if (*t == 0) return false;
747	if (strchr("dfsoxp", *t) == NULL) return false;
748	switch (*t)
749	{
750	case 'd':
751	{paInt a, b, c; if (getMinMax(t, a, b, c) == 1) return false; }
752	break;
753	case 'f':
754	{double a, b, c; if (getMinMax(t, a, b, c) == 1) return false; }
755	break;
756	}
757	return true;
758	}
759
760	SString ParamInterface::describeType(const char* type)
761	{
762	SString t;
763	switch (type[0])
764	{
765	case 'd': t += "integer";
766	{paInt a, b, c; int n = getMinMax(type, a, b, c); if ((n >= 2) && (b >= a)) t += SString::sprintf(" %d..%d", a, b); if (n >= 3) t += SString::sprintf(" (default %d)", c); }
767	break;
768	case 'f': t += "float";
769	{double a, b, c; int n = getMinMax(type, a, b, c); if ((n >= 2) && (b >= a)) t += SString::sprintf(" %g..%g", a, b); if (n >= 3) t += SString::sprintf(" (default %g)", c); }
770	break;
771	case 's': t += "string";
772	{int a, b; SString c; int n = getMinMax(type, a, b, c); if ((n >= 2) && (b > 0)) t += SString::sprintf(", max %d chars", b); if (n >= 3) t += SString::sprintf(" (default \"%s\")", c.c_str()); }
773	break;
774	case 'x': t += "untyped value"; break;
775	case 'p': t += "function"; break;
776	case 'o': t += "object"; if (type[1]) { t += " of class "; t += type + 1; } break;
777	default: return "unknown type";
778	}
779	return t;
780	}
781
782	//////////////////////////////// PARAM ////////////////////////////////////
783
784	#ifdef _DEBUG
785	void SimpleAbstractParam::sanityCheck(int i)
786	{
787	ParamEntry *pe = entry(i);
788
789	const char* t = pe->type;
790	const char* err = NULL;
791
792	if (!isValidTypeDescription(t))
793	err = "invalid type description";
794	if (*t == 'p')
795	{
796	if (pe->fun1 == NULL)
797	err = "no procedure defined";
798	if (pe->flags & PARAM_READONLY)
799	err = "function can't be PARAM_READONLY";
800	}
801	else
802	{
803	if (!(pe->flags & PARAM_READONLY))
804	{ //write access
805	if ((pe->fun2 == NULL) && (pe->offset == PARAM_ILLEGAL_OFFSET))
806	err = "no field defined (GETONLY without PARAM_READONLY?)";
807	}
808	}
809	if (err != NULL)
810	logPrintf("SimpleAbstractParam", "sanityCheck", LOG_ERROR,
811	"Invalid ParamEntry for %s.%s (%s)", getName(), pe->id, err);
812	}
813	#endif
814
815	void *SimpleAbstractParam::getTarget(int i)
816	{
817	return (void)(((char)object) + entry(i)->offset);
818	//return &(object->*(entry(i)->fldptr));
819	}
820
821	///////// get
822
823	#ifdef _DEBUG
824	#define SANITY_CHECK(i) sanityCheck(i)
825	#else
826	#define SANITY_CHECK(i)
827	#endif
828
829	paInt SimpleAbstractParam::getInt(int i)
830	{
831	SANITY_CHECK(i);
832	ExtValue v;
833	ParamEntry *pe = entry(i);
834	if (pe->fun1)
835	{
836	((void()(void, ExtValue))pe->fun1)(object, &v);
837	return v.getInt();
838	}
839	else
840	{
841	void *target = getTarget(i);
842	return ((paInt)target);
843	}
844	}
845
846	double SimpleAbstractParam::getDouble(int i)
847	{
848	SANITY_CHECK(i);
849	ExtValue v;
850	ParamEntry *pe = entry(i);
851	if (pe->fun1)
852	{
853	((void()(void, ExtValue))pe->fun1)(object, &v);
854	return v.getDouble();
855	}
856	else
857	{
858	void *target = getTarget(i);
859	return ((double)target);
860	}
861	}
862
863	SString SimpleAbstractParam::getString(int i)
864	{
865	SANITY_CHECK(i);
866	ExtValue v;
867	ParamEntry *pe = entry(i);
868	if (pe->fun1)
869	{
870	((void()(void, ExtValue))pe->fun1)(object, &v);
871	return v.getString();
872	}
873	else
874	{
875	void *target = getTarget(i);
876	return ((SString)target);
877	}
878	}
879
880	ExtObject SimpleAbstractParam::getObject(int i)
881	{
882	SANITY_CHECK(i);
883	ExtValue v;
884	ParamEntry *pe = entry(i);
885	if (pe->fun1)
886	{
887	((void()(void, ExtValue))pe->fun1)(object, &v);
888	return v.getObject();
889	}
890	else
891	{
892	void *target = getTarget(i);
893	return ((ExtObject)target);
894	}
895	}
896
897	ExtValue SimpleAbstractParam::getExtValue(int i)
898	{
899	SANITY_CHECK(i);
900	ExtValue v;
901	ParamEntry *pe = entry(i);
902	if (pe->fun1)
903	{
904	((void()(void, ExtValue))pe->fun1)(object, &v);
905	return v;
906	}
907	else
908	{
909	void *target = getTarget(i);
910	return ((ExtValue)target);
911	}
912	}
913
914
915	//////// set
916
917	int SimpleAbstractParam::setInt(int i, paInt x)
918	{
919	SANITY_CHECK(i);
920	ExtValue v;
921	ParamEntry *pe = entry(i);
922	if (pe->flags&PARAM_READONLY) return PSET_RONLY;
923	paInt xcopy = x; //only needed for messageOnExceedRange(): retain original, requested value of x because it may be changed below
924	paInt mn = 0, mx = 0, de = 0;
925	int result = 0;
926	if (getMinMax(pe->type, mn, mx, de) >= 2)
927	if (mn <= mx) // else if mn>mx then the min/max constraint makes no sense and there is no checking
928	{
929	if (x < mn) { x = mn; result = PSET_HITMIN; }
930	else if (x > mx) { x = mx; result = PSET_HITMAX; }
931	}
932
933	if (pe->fun2)
934	{
935	v.setInt(x);
936	result \|= ((int()(void, const ExtValue))pe->fun2)(object, &v);
937	}
938	else
939	{
940	void *target = getTarget(i);
941	if (dontcheckchanges \|\| (((paInt)target) != x))
942	{
943	result \|= PSET_CHANGED;
944	((paInt)target) = x;
945	}
946	}
947	messageOnExceedRange(i, result, xcopy);
948	return result;
949	}
950
951	int SimpleAbstractParam::setDouble(int i, double x)
952	{
953	SANITY_CHECK(i);
954	ExtValue v;
955	ParamEntry *pe = entry(i);
956	if (pe->flags&PARAM_READONLY) return PSET_RONLY;
957	double xcopy = x; //only needed for messageOnExceedRange(): retain original, requested value of x because it may be changed below
958	double mn = 0, mx = 0, de = 0;
959	int result = 0;
960	if (getMinMax(pe->type, mn, mx, de) >= 2)
961	if (mn <= mx) // else if mn>mx then the min/max constraint makes no sense and there is no checking
962	{
963	if (x < mn) { x = mn; result = PSET_HITMIN; }
964	else if (x > mx) { x = mx; result = PSET_HITMAX; }
965	}
966
967	if (pe->fun2)
968	{
969	v.setDouble(x);
970	result \|= ((int()(void, const ExtValue))pe->fun2)(object, &v);
971	}
972	else
973	{
974	void *target = getTarget(i);
975	if (dontcheckchanges \|\| (((double)target) != x))
976	{
977	result \|= PSET_CHANGED;
978	((double)target) = x;
979	}
980	}
981	messageOnExceedRange(i, result, xcopy);
982	return result;
983	}
984
985	int SimpleAbstractParam::setString(int i, const SString& x)
986	{
987	SANITY_CHECK(i);
988	ExtValue v;
989	SString vs;
990	const SString *xx = &x;
991	ParamEntry *pe = entry(i);
992	if (pe->flags&PARAM_READONLY) return PSET_RONLY;
993	SString xcopy = x; //only needed for messageOnExceedRange(): retain original, requested value of x because it may be changed below
994	const char* t = pe->type + 1;
995	while (t) if (t == ' ') break; else t++;
996	int mn = 0, mx = 0;
997	int result = 0;
998	if (sscanf(t, "%d %d", &mn, &mx) == 2) //using getMinMax would also get default value, which is not needed here
999	{
1000	if ((x.len() > mx) && (mx > 0))
1001	{
1002	vs = x.substr(0, mx);
1003	xx = &vs;
1004	result \|= PSET_HITMAX;
1005	}
1006	}
1007
1008	if (pe->fun2)
1009	{
1010	v.setString(*xx);
1011	result \|= ((int()(void, const ExtValue))pe->fun2)(object, &v);
1012	}
1013	else
1014	{
1015	void *target = getTarget(i);
1016	if (dontcheckchanges \|\| (!(((SString)target) == *xx)))
1017	{
1018	result \|= PSET_CHANGED;
1019	((SString)target) = *xx;
1020	}
1021	}
1022	messageOnExceedRange(i, result, xcopy);
1023	return result;
1024	}
1025
1026	int SimpleAbstractParam::setObject(int i, const ExtObject& x)
1027	{
1028	SANITY_CHECK(i);
1029	ExtValue v;
1030	ParamEntry *pe = entry(i);
1031	if (pe->flags&PARAM_READONLY) return PSET_RONLY;
1032	if (pe->flags&PARAM_OBJECTSET)
1033	{
1034	ExtObject o = getObject(i);
1035	Param tmp;
1036	ParamInterface* oif = o.getParamInterface(tmp);
1037	int ass;
1038	if (oif && ((ass = oif->findId("assign")) >= 0))
1039	{
1040	ExtValue arg = x;
1041	oif->call(ass, &arg, &v);
1042	}
1043	else
1044	logPrintf("SimpleAbstractParam", "setObject", LOG_ERROR,
1045	"'%s.%s' is PARAM_OBJECTSET but no 'assign()' in %s", getName(), pe->id, o.interfaceName());
1046	return PSET_CHANGED;
1047	}
1048	ExtObject xcopy = x; //only needed for messageOnExceedRange(): retain original, requested value of x because it may be changed below
1049	if (pe->fun2)
1050	{
1051	v.setObject(x);
1052	int result = ((int()(void, const ExtValue))pe->fun2)(object, &v);
1053	messageOnExceedRange(i, result, xcopy);
1054	return result;
1055	}
1056	else
1057	{
1058	void *target = getTarget(i);
1059	((ExtObject)target) = x;
1060	return PSET_CHANGED;
1061	}
1062	}
1063
1064	int SimpleAbstractParam::setExtValue(int i, const ExtValue& x)
1065	{
1066	SANITY_CHECK(i);
1067	ParamEntry *pe = entry(i);
1068	if (pe->flags&PARAM_READONLY) return PSET_RONLY;
1069	ExtValue xcopy = x; //only needed for messageOnExceedRange(): retain original, requested value of x because it may be changed below
1070	if (pe->fun2)
1071	{
1072	int result = ((int()(void, const ExtValue))pe->fun2)(object, &x);
1073	messageOnExceedRange(i, result, xcopy);
1074	return result;
1075	}
1076	else
1077	{
1078	void *target = getTarget(i);
1079	((ExtValue)target) = x;
1080	return PSET_CHANGED;
1081	}
1082	}
1083
1084	void SimpleAbstractParam::call(int i, ExtValue args, ExtValue ret)
1085	{
1086	SANITY_CHECK(i);
1087	ParamEntry *pe = entry(i);
1088	if (!pe) return;
1089	if (pe->fun1 && (pe->type[0] == 'p'))
1090	((void()(void, ExtValue, ExtValue*))pe->fun1)(object, args, ret);
1091	else
1092	{
1093	logPrintf("SimpleAbstractParam", "call", LOG_ERROR,
1094	(*pe->type != 'p') ? "'%s.%s' is not a function" : "Internal error - undefined function pointer for '%s.%s'", getName(), pe->id);
1095	ret->setInvalid();
1096	}
1097	}
1098
1099	void SimpleAbstractParam::setDefault()
1100	{
1101	bool save = dontcheckchanges;
1102	dontcheckchanges = 1;
1103	ParamInterface::setDefault();
1104	dontcheckchanges = save;
1105	}
1106
1107	void SimpleAbstractParam::setDefault(int i)
1108	{
1109	bool save = dontcheckchanges;
1110	dontcheckchanges = 1;
1111	ParamInterface::setDefault(i);
1112	dontcheckchanges = save;
1113	}
1114
1115	// Returns the address of the beginning of the line.
1116	// len = line length (without \n).
1117	// 0 may mean the line with length=0 or the end of the SString.
1118	// poz is advanced to the beginning of the next line.
1119	// A typical loop: for(poz=0;poz<s.d;) {line=getline(s,poz,len);...
1120	static const char *getline(const SString &s, int &poz, int &len)
1121	{
1122	const char *beg = s.c_str() + poz;
1123	if (poz >= s.len()) { poz = s.len(); len = 0; return s.c_str() + s.len(); }
1124	const char *lf = strchr(beg, '\n');
1125	if (!lf) { lf = s.c_str() + s.len() - 1; poz = s.len(); }
1126	else { poz = (int)(lf - s.c_str()) + 1; if (poz > s.len()) poz = s.len(); }
1127	while (lf >= beg) if ((lf == '\n') \|\| (lf == '\r')) lf--; else break;
1128	len = (int)(lf - beg) + 1;
1129	return beg;
1130	}
1131
1132	int ParamInterface::load2(const SString &s, int &poz)
1133	{
1134	int i; // the index number of the parameter
1135	int tmpi;
1136	int len;
1137	int ret;
1138	int fields_loaded = 0;
1139	const char t, lin, *end;
1140	const char equals_sign, field_end, *next_field;
1141	char remember;
1142	const char quote, quote2;
1143	const char value, valstop;
1144	SString tmpvalue;
1145	bool parse_failed = false;
1146	if (poz >= s.len()) return fields_loaded;
1147	t = s.c_str() + poz;
1148
1149	lin = getline(s, poz, len); // all fields must be encoded in a single line
1150	if (!len) return fields_loaded; // empty line = end
1151	i = 0;
1152	end = lin + len;
1153	while (t < end)
1154	{
1155	// processing a single field
1156	// "p:name=field_value, field_name=field_value , name=value..."
1157	// ^ ^-t (after) ^ ^_next_field
1158	// \_t (before) \_field_end
1159	while (isspace(*t)) if (t < end) t++; else return fields_loaded;
1160
1161	field_end = strchrlimit(t, ',', end); if (!field_end) field_end = end;
1162	next_field = field_end;
1163	while ((field_end>t) && isblank(field_end[-1])) field_end--;
1164	quote = strchrlimit(t, '\"', field_end);
1165	if (quote)
1166	{
1167	quote2 = skipQuoteString(quote + 1, end);
1168	if (quote2 > field_end)
1169	{
1170	field_end = strchrlimit(quote2 + 1, ',', end);
1171	if (!field_end) field_end = end;
1172	next_field = field_end;
1173	}
1174	equals_sign = strchrlimit(t, '=', quote);
1175	}
1176	else
1177	{
1178	equals_sign = strchrlimit(t, '=', field_end);
1179	quote2 = 0;
1180	}
1181	if (equals_sign == t) { t++; equals_sign = 0; }
1182	if (field_end == t) // skip empty value
1183	{
1184	t++; i++;
1185	continue;
1186	}
1187	if (equals_sign) // have parameter name
1188	{
1189	tmpi = findIdn(t, (int)(equals_sign - t));
1190	i = tmpi;
1191	if (tmpi < 0)
1192	{
1193	SString name(t, (int)(equals_sign - t));
1194	logPrintf("Param", "load2", LOG_WARN, "Unknown property '%s' while reading object '%s' (ignored)", name.c_str(), getName());
1195	}
1196	t = equals_sign + 1; // t=value
1197	}
1198	#ifdef WARN_MISSING_NAME
1199	else
1200	#ifdef SAVE_SELECTED_NAMES
1201	if ((i >= getPropCount()) \|\| !(flags(i)&PARAM_CANOMITNAME))
1202	#endif
1203	{
1204	if (id(i))
1205	logPrintf("Param", "load2", LOG_WARN, "Missing property name in '%s' (assuming '%s')", getName(), id(i));
1206	else
1207	logPrintf("Param", "load2", LOG_WARN, "Value after the last property of '%s'", getName());
1208	}
1209	#endif
1210	if ((i >= 0) && id(i))
1211	{
1212	value = t;
1213	if (quote)
1214	{
1215	tmpvalue.copyFrom(quote + 1, (int)(quote2 - quote) - 1);
1216	sstringUnquote(tmpvalue);
1217	value = tmpvalue.c_str();
1218	valstop = quote2;
1219	}
1220	else
1221	if (field_end < end) valstop = field_end; else valstop = end;
1222
1223	remember = *valstop;
1224	(char)valstop = 0;
1225	ret = set(i, value, true);
1226	fields_loaded++;
1227	if (ret&(PSET_HITMAX \| PSET_HITMIN))
1228	logPrintf("Param", "load2", LOG_WARN, "Adjusted '%s' in '%s' (was too %s)",
1229	id(i), getName(), (ret&PSET_HITMAX) ? "big" : "small");
1230	if (ret&PSET_PARSEFAILED)
1231	parse_failed = true;
1232	(char)valstop = remember;
1233	}
1234
1235	if (i >= 0) i++;
1236	#ifdef __CODEGUARD__
1237	if (next_field<end-1) t=next_field+1; else return fields_loaded;
1238	#else
1239	t = next_field + 1;
1240	#endif
1241	}
1242	return fields_loaded \| (parse_failed ? LOAD2_PARSE_FAILED : 0);
1243	}
1244
1245	int Param::grmember(int g, int a)
1246	{
1247	if ((getGroupCount() < 2) && (!g))
1248	return (a < getPropCount()) ? a : -9999;
1249
1250	ParamEntry *e = entry(0);
1251	int x = 0, i = 0;
1252	for (; e->id; i++, e++)
1253	{
1254	if (e->group == g)
1255	if (a == x) return i; else x++;
1256	}
1257	return -9999;
1258	}

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