1 | /**************************************************************************
|
---|
2 | *
|
---|
3 | * display.cpp -- Context sensitive macro language
|
---|
4 | * Copyright (c) 1998 -- Rodger McNab and Hong Chen
|
---|
5 | *
|
---|
6 | * This program is free software; you can redistribute it and/or modify
|
---|
7 | * it under the terms of the GNU General Public License as published by
|
---|
8 | * the Free Software Foundation; either version 2 of the License, or
|
---|
9 | * (at your option) any later version.
|
---|
10 | *
|
---|
11 | * This program is distributed in the hope that it will be useful,
|
---|
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
14 | * GNU General Public License for more details.
|
---|
15 | *
|
---|
16 | * You should have received a copy of the GNU General Public License
|
---|
17 | * along with this program; if not, write to the Free Software
|
---|
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
19 | *
|
---|
20 | * $Id: display.cpp 4 1998-11-17 01:10:39Z sjboddie $
|
---|
21 | *
|
---|
22 | **************************************************************************/
|
---|
23 |
|
---|
24 | /*fopen
|
---|
25 | $Log$
|
---|
26 | Revision 1.1 1998/11/17 01:11:03 sjboddie
|
---|
27 | Initial revision
|
---|
28 |
|
---|
29 | Revision 1.8 1998/06/24 01:49:28 rjmcnab
|
---|
30 | Added stuff for the objectspace libraries
|
---|
31 |
|
---|
32 | Revision 1.7 1998/06/22 01:05:49 rjmcnab
|
---|
33 | Added a warning when a macro is not found
|
---|
34 |
|
---|
35 | Revision 1.6 1998/06/18 23:58:03 rjmcnab
|
---|
36 | changed 'display' to 'displayclass'
|
---|
37 | added support to stream text through display with <<
|
---|
38 |
|
---|
39 | Revision 1.5 1998/06/18 00:14:21 rjmcnab
|
---|
40 | fixed a bug in "macro" and added a comment about what
|
---|
41 | the use of macro names
|
---|
42 |
|
---|
43 | Revision 1.4 1998/06/17 10:30:00 rjmcnab
|
---|
44 | added a simple _If_ statement
|
---|
45 |
|
---|
46 | Revision 1.3 1998/06/17 08:51:08 rjmcnab
|
---|
47 | Added the expansion of macro options, some checking
|
---|
48 | for recursive macro calls, and changed 'set' to
|
---|
49 | 'setmacro' in a few places as the MVC++ version 4.2
|
---|
50 | was getting 'set' confused with the STL 'set'
|
---|
51 |
|
---|
52 | Revision 1.2 1998/06/15 22:00:29 rjmcnab
|
---|
53 | a lot of restructuring and simplifying
|
---|
54 |
|
---|
55 | Revision 1.1 1998/06/13 20:06:05 rjmcnab
|
---|
56 | Initial revision
|
---|
57 |
|
---|
58 | */
|
---|
59 |
|
---|
60 | static char *RCSID = "$Id: display.cpp 4 1998-11-17 01:10:39Z sjboddie $";
|
---|
61 |
|
---|
62 |
|
---|
63 | #include "display.h"
|
---|
64 | #include <assert.h>
|
---|
65 |
|
---|
66 | // include to get NULL
|
---|
67 | #include <stdlib.h>
|
---|
68 |
|
---|
69 | #ifdef __GNUG__
|
---|
70 | # include <iostream.h>
|
---|
71 | # include <fstream.h>
|
---|
72 | #else
|
---|
73 | # ifndef USE_OBJECTSPACE
|
---|
74 | # include <iostream>
|
---|
75 | # include <fstream>
|
---|
76 | # else
|
---|
77 | # include <ospace\std\iostream>
|
---|
78 | # include <ospace\std\fstream>
|
---|
79 | # endif
|
---|
80 | #endif
|
---|
81 |
|
---|
82 |
|
---|
83 |
|
---|
84 |
|
---|
85 | /////////////////////////////////////
|
---|
86 | // misc classes
|
---|
87 | /////////////////////////////////////
|
---|
88 |
|
---|
89 |
|
---|
90 | // precedencetype defines a 'precedence value' for each parameter
|
---|
91 | typedef map<text_t, double, lttext_t> precedencetype;
|
---|
92 |
|
---|
93 |
|
---|
94 | // macro value structure
|
---|
95 | struct mvalue
|
---|
96 | {
|
---|
97 | text_t filename;
|
---|
98 | text_t value;
|
---|
99 | };
|
---|
100 |
|
---|
101 |
|
---|
102 |
|
---|
103 | /////////////////////////////////////
|
---|
104 | // stuff for defaultmacros_t
|
---|
105 | /////////////////////////////////////
|
---|
106 |
|
---|
107 | typedef map<text_t, mvalue, lttext_t> defparammap;
|
---|
108 | typedef map<text_t, defparammap, lttext_t> defmacromap;
|
---|
109 | typedef map<text_t, defmacromap, lttext_t> defpackagemap;
|
---|
110 |
|
---|
111 | // all methods in defaultmacros_t assume the parameters
|
---|
112 | // and packages in a standard form and not empty
|
---|
113 | class defaultmacros_t
|
---|
114 | {
|
---|
115 | protected:
|
---|
116 | defpackagemap macros;
|
---|
117 |
|
---|
118 | public:
|
---|
119 | typedef defpackagemap::const_iterator const_package_iterator;
|
---|
120 | typedef defpackagemap::size_type package_size_type;
|
---|
121 |
|
---|
122 | // setmacro returns 0 if there was no error,
|
---|
123 | // -1 if it redefined a macro
|
---|
124 | // -2 if it hid a Global macro
|
---|
125 | // -3 if it redefined a macro and hid a Global macro
|
---|
126 | // -4 if either a package, macroname, or params were not supplied
|
---|
127 | int setmacro(const text_t &package,
|
---|
128 | const text_t ¯oname,
|
---|
129 | const text_t ¶ms,
|
---|
130 | const text_t &filename,
|
---|
131 | const text_t ¯ovalue);
|
---|
132 |
|
---|
133 | void delmacro(const text_t &package,
|
---|
134 | const text_t ¯oname,
|
---|
135 | const text_t ¶ms);
|
---|
136 |
|
---|
137 | void clear () {macros.erase(macros.begin(), macros.end());}
|
---|
138 |
|
---|
139 | // top level stuff
|
---|
140 | const_package_iterator package_begin () const {return macros.begin();}
|
---|
141 | const_package_iterator package_end () const {return macros.end();}
|
---|
142 | bool package_empty () const {return macros.empty();}
|
---|
143 | package_size_type package_size() const {return macros.size();}
|
---|
144 |
|
---|
145 | // methods to find things
|
---|
146 | defmacromap *package_find (const text_t &packagename);
|
---|
147 | defparammap *macro_find (const text_t &packagename,
|
---|
148 | const text_t ¯oname);
|
---|
149 | mvalue *parameter_find (const text_t &packagename,
|
---|
150 | const text_t ¯oname,
|
---|
151 | const text_t ¶metername);
|
---|
152 | };
|
---|
153 |
|
---|
154 |
|
---|
155 | // setmacro returns 0 if there was no error,
|
---|
156 | // -1 if it redefined a macro
|
---|
157 | // -2 if it hid a Global macro
|
---|
158 | // -3 if it redefined a macro and hid a Global macro
|
---|
159 | // -4 if either a package, macroname, or params were not supplied
|
---|
160 | int defaultmacros_t::setmacro(const text_t &package,
|
---|
161 | const text_t ¯oname,
|
---|
162 | const text_t ¶ms,
|
---|
163 | const text_t &filename,
|
---|
164 | const text_t ¯ovalue)
|
---|
165 | {
|
---|
166 | text_t constGlobal("Global");
|
---|
167 | paramhashtype paramhash;
|
---|
168 |
|
---|
169 | defmacromap *macromapptr;
|
---|
170 | defparammap *parammapptr;
|
---|
171 | mvalue *mvalueptr;
|
---|
172 |
|
---|
173 | int warning = 0;
|
---|
174 |
|
---|
175 | // check to see if we would be hiding a Global macro with the
|
---|
176 | // same name. Note: it doesn't matter what parameters are used
|
---|
177 | // a Global macro will still be hid by a non-Global one with
|
---|
178 | // the same name.
|
---|
179 | if ((package != constGlobal) &&
|
---|
180 | (macro_find (constGlobal, macroname) != NULL))
|
---|
181 | {
|
---|
182 | warning -= 2; // found the macroname
|
---|
183 | }
|
---|
184 |
|
---|
185 | // define this macro
|
---|
186 | macromapptr = &(macros[package]); // -- package
|
---|
187 | parammapptr = &((*macromapptr)[macroname]); // -- macro name
|
---|
188 | // -- parameters
|
---|
189 | if ((*parammapptr).find(params) != (*parammapptr).end()) {
|
---|
190 | warning -= 1; // found the parameters
|
---|
191 | }
|
---|
192 | mvalueptr = &((*parammapptr)[params]);
|
---|
193 |
|
---|
194 | // -- value
|
---|
195 | (*mvalueptr).filename = filename;
|
---|
196 | (*mvalueptr).value = macrovalue;
|
---|
197 |
|
---|
198 | return warning;
|
---|
199 | }
|
---|
200 |
|
---|
201 | void defaultmacros_t::delmacro(const text_t &package,
|
---|
202 | const text_t ¯oname,
|
---|
203 | const text_t ¶ms)
|
---|
204 | {
|
---|
205 | // make sure everything was supplied
|
---|
206 | if (package.empty() || macroname.empty() || params.empty()) return;
|
---|
207 |
|
---|
208 | // find the package and macroname
|
---|
209 | defparammap *parammapptr = macro_find(package, macroname);
|
---|
210 | if (parammapptr == NULL) return;
|
---|
211 |
|
---|
212 | // find the parameters
|
---|
213 | defparammap::iterator parammapit = parammapptr->find(params);
|
---|
214 | if (parammapit == parammapptr->end()) return;
|
---|
215 |
|
---|
216 | // finally delete this element
|
---|
217 | parammapptr->erase(parammapit);
|
---|
218 | }
|
---|
219 |
|
---|
220 | defmacromap *defaultmacros_t::package_find (const text_t &packagename)
|
---|
221 | {
|
---|
222 | if (packagename.empty()) return NULL;
|
---|
223 |
|
---|
224 | defpackagemap::iterator it = macros.find(packagename);
|
---|
225 | if (it == macros.end()) return NULL;
|
---|
226 |
|
---|
227 | return &((*it).second);
|
---|
228 | }
|
---|
229 |
|
---|
230 | defparammap *defaultmacros_t::macro_find (const text_t &packagename,
|
---|
231 | const text_t ¯oname)
|
---|
232 | {
|
---|
233 | defmacromap *macromapptr = package_find(packagename);
|
---|
234 | if (macromapptr == NULL || macroname.empty()) return NULL;
|
---|
235 |
|
---|
236 | defmacromap::iterator it = (*macromapptr).find(macroname);
|
---|
237 | if (it == (*macromapptr).end()) return NULL;
|
---|
238 |
|
---|
239 | return &((*it).second);
|
---|
240 | }
|
---|
241 |
|
---|
242 | mvalue *defaultmacros_t::parameter_find (const text_t &packagename,
|
---|
243 | const text_t ¯oname,
|
---|
244 | const text_t ¶metername)
|
---|
245 | {
|
---|
246 | defparammap *parammapptr = macro_find(packagename, macroname);
|
---|
247 | if (parammapptr == NULL || parametername.empty()) return NULL;
|
---|
248 |
|
---|
249 | defparammap::iterator it = (*parammapptr).find(parametername);
|
---|
250 | if (it == (*parammapptr).end()) return NULL;
|
---|
251 |
|
---|
252 | return &((*it).second);
|
---|
253 | }
|
---|
254 |
|
---|
255 |
|
---|
256 |
|
---|
257 | /////////////////////////////////////
|
---|
258 | // stuff for currentmacros_t
|
---|
259 | /////////////////////////////////////
|
---|
260 |
|
---|
261 | typedef map<text_t, mvalue, lttext_t> curmacromap;
|
---|
262 | typedef map<text_t, curmacromap, lttext_t> curpackagemap;
|
---|
263 |
|
---|
264 | // all methods in currentmacros_t assume the parameters
|
---|
265 | // and packages in a standard form and not empty
|
---|
266 | class currentmacros_t
|
---|
267 | {
|
---|
268 | protected:
|
---|
269 | curpackagemap macros;
|
---|
270 |
|
---|
271 | public:
|
---|
272 | typedef curpackagemap::const_iterator const_package_iterator;
|
---|
273 | typedef curpackagemap::size_type package_size_type;
|
---|
274 |
|
---|
275 | // setmacro returns 0 if there was no error,
|
---|
276 | // -1 if it redefined a macro
|
---|
277 | // -4 if either a package, or macroname were not supplied
|
---|
278 | int setmacro(const text_t &package,
|
---|
279 | const text_t ¯oname,
|
---|
280 | const text_t &filename,
|
---|
281 | const text_t ¯ovalue);
|
---|
282 |
|
---|
283 | void delmacro(const text_t &package,
|
---|
284 | const text_t ¯oname);
|
---|
285 |
|
---|
286 | void clear () {macros.erase(macros.begin(), macros.end());}
|
---|
287 |
|
---|
288 | // top level stuff
|
---|
289 | const_package_iterator package_begin () const {return macros.begin();}
|
---|
290 | const_package_iterator package_end () const {return macros.end();}
|
---|
291 | bool package_empty () const {return macros.empty();}
|
---|
292 | package_size_type package_size() const {return macros.size();}
|
---|
293 |
|
---|
294 | // methods to find things
|
---|
295 | curmacromap *package_find (const text_t &packagename);
|
---|
296 | mvalue *macro_find (const text_t &packagename,
|
---|
297 | const text_t ¯oname);
|
---|
298 | };
|
---|
299 |
|
---|
300 |
|
---|
301 | // setmacro returns 0 if there was no error,
|
---|
302 | // -1 if it redefined a macro
|
---|
303 | // -4 if either a package, or macroname were not supplied
|
---|
304 | int currentmacros_t::setmacro(const text_t &package,
|
---|
305 | const text_t ¯oname,
|
---|
306 | const text_t &filename,
|
---|
307 | const text_t ¯ovalue)
|
---|
308 | {
|
---|
309 | int warning = 0;
|
---|
310 |
|
---|
311 | // make sure everything was supplied
|
---|
312 | if (package.empty() || macroname.empty()) return -4;
|
---|
313 |
|
---|
314 | // define this macro
|
---|
315 | curmacromap *macromapptr = &(macros[package]);
|
---|
316 | if ((*macromapptr).find(macroname) != (*macromapptr).end())
|
---|
317 | {
|
---|
318 | warning -= 1; // found the macroname
|
---|
319 | }
|
---|
320 | mvalue *mvalueptr = &((*macromapptr)[macroname]);
|
---|
321 |
|
---|
322 | // -- value
|
---|
323 | (*mvalueptr).filename = filename;
|
---|
324 | (*mvalueptr).value = macrovalue;
|
---|
325 |
|
---|
326 | return warning;
|
---|
327 | }
|
---|
328 |
|
---|
329 | void currentmacros_t::delmacro(const text_t &package,
|
---|
330 | const text_t ¯oname)
|
---|
331 | {
|
---|
332 | // make sure everything was supplied
|
---|
333 | if (package.empty() || macroname.empty()) return;
|
---|
334 |
|
---|
335 | // find the package
|
---|
336 | curmacromap *macromapptr = package_find(package);
|
---|
337 | if (macromapptr == NULL) return;
|
---|
338 |
|
---|
339 | // find the macroname
|
---|
340 | curmacromap::iterator macromapit = macromapptr->find(macroname);
|
---|
341 | if (macromapit == macromapptr->end()) return;
|
---|
342 |
|
---|
343 | // finally delete this element
|
---|
344 | macromapptr->erase(macromapit);
|
---|
345 | }
|
---|
346 |
|
---|
347 | curmacromap *currentmacros_t::package_find (const text_t &packagename)
|
---|
348 | {
|
---|
349 | if (packagename.empty()) return NULL;
|
---|
350 |
|
---|
351 | curpackagemap::iterator it = macros.find(packagename);
|
---|
352 | if (it == macros.end()) return NULL;
|
---|
353 |
|
---|
354 | return &((*it).second);
|
---|
355 | }
|
---|
356 |
|
---|
357 | mvalue *currentmacros_t::macro_find (const text_t &packagename,
|
---|
358 | const text_t ¯oname)
|
---|
359 | {
|
---|
360 | curmacromap *macromapptr = package_find(packagename);
|
---|
361 | if (macromapptr == NULL || macroname.empty()) return NULL;
|
---|
362 |
|
---|
363 | curmacromap::iterator it = (*macromapptr).find(macroname);
|
---|
364 | if (it == (*macromapptr).end()) return NULL;
|
---|
365 |
|
---|
366 | return &((*it).second);
|
---|
367 | }
|
---|
368 |
|
---|
369 |
|
---|
370 |
|
---|
371 |
|
---|
372 | /////////////////////////////////////
|
---|
373 | // support functions
|
---|
374 | /////////////////////////////////////
|
---|
375 |
|
---|
376 | // this calculation of precedence will make one occurance of a high
|
---|
377 | // precedence item override many occurances of lower precedence items
|
---|
378 | void calcprecedence (const text_t &precedstr, precedencetype &precedhash)
|
---|
379 | {
|
---|
380 | text_t param;
|
---|
381 | double multiple = 5.0;
|
---|
382 | double nextprec = multiple;
|
---|
383 |
|
---|
384 | text_t::const_iterator here, end;
|
---|
385 |
|
---|
386 | // set precedhash to an empty hash
|
---|
387 | precedhash.erase(precedhash.begin(), precedhash.end());
|
---|
388 |
|
---|
389 | // iterate through paramstring ignoring space and extracting
|
---|
390 | // out key value pairs.
|
---|
391 | here = precedstr.begin();
|
---|
392 | end = precedstr.end();
|
---|
393 | while (here != end)
|
---|
394 | {
|
---|
395 | // get the next parameter
|
---|
396 | param.clear(); // set param to an empty string
|
---|
397 |
|
---|
398 | while (here != end)
|
---|
399 | {
|
---|
400 | if (*here == ',')
|
---|
401 | {
|
---|
402 | // found the end of the parameter
|
---|
403 | here++;
|
---|
404 | break;
|
---|
405 | }
|
---|
406 | else if (*here == ' ')
|
---|
407 | {
|
---|
408 | // do nothing (ignore spaces)
|
---|
409 | }
|
---|
410 | else
|
---|
411 | {
|
---|
412 | // character in parameter
|
---|
413 | param.push_back (*here); // copy this character
|
---|
414 | }
|
---|
415 |
|
---|
416 | here++;
|
---|
417 | }
|
---|
418 |
|
---|
419 | // if a parameter was found insert its value
|
---|
420 | if (!param.empty())
|
---|
421 | {
|
---|
422 | precedhash[param] = nextprec;
|
---|
423 | nextprec *= multiple;
|
---|
424 | }
|
---|
425 | }
|
---|
426 | }
|
---|
427 |
|
---|
428 |
|
---|
429 | // decides how specific any given parameter is to the page parameters. Returns
|
---|
430 | // negative if any options are different or else the sum of the precedence for
|
---|
431 | // the options which match.
|
---|
432 | double getspecificness(const paramhashtype &pageparams,
|
---|
433 | const paramhashtype &theseparams,
|
---|
434 | const precedencetype &precedhash)
|
---|
435 | {
|
---|
436 | double specificness = 0.0;
|
---|
437 | paramhashtype::const_iterator here, pagevalueit;
|
---|
438 | precedencetype::const_iterator precedit;
|
---|
439 | text_t thesekey, thesevalue, constignore("ignore");
|
---|
440 |
|
---|
441 | here = theseparams.begin();
|
---|
442 | while (here != theseparams.end())
|
---|
443 | {
|
---|
444 | thesekey = (*here).first;
|
---|
445 | thesevalue = (*here).second;
|
---|
446 |
|
---|
447 | if (thesekey == constignore)
|
---|
448 | {
|
---|
449 | // do nothing, this is a placeholder
|
---|
450 | }
|
---|
451 | else
|
---|
452 | {
|
---|
453 | pagevalueit = pageparams.find(thesekey);
|
---|
454 | if ((pagevalueit != pageparams.end()) &&
|
---|
455 | ((*pagevalueit).second == thesevalue))
|
---|
456 | {
|
---|
457 | // this parameter fits, add its precedence value
|
---|
458 | precedit = precedhash.find(thesekey);
|
---|
459 | if (precedit == precedhash.end())
|
---|
460 | specificness += 1.0; // no precedence defined
|
---|
461 | else
|
---|
462 | specificness += (*precedit).second;
|
---|
463 | }
|
---|
464 | else
|
---|
465 | {
|
---|
466 | return -1.0; // did not match
|
---|
467 | }
|
---|
468 | }
|
---|
469 |
|
---|
470 | here++;
|
---|
471 | }
|
---|
472 |
|
---|
473 | return specificness;
|
---|
474 | }
|
---|
475 |
|
---|
476 |
|
---|
477 | void splitparams (const text_t ¶mstring, paramhashtype ¶mhash)
|
---|
478 | {
|
---|
479 | text_t key;
|
---|
480 | text_t value;
|
---|
481 |
|
---|
482 | text_t::const_iterator here, end;
|
---|
483 |
|
---|
484 | // set paramhash to an empty hash
|
---|
485 | paramhash.erase(paramhash.begin(), paramhash.end());
|
---|
486 |
|
---|
487 | // iterate through paramstring ignoring space and extracting
|
---|
488 | // out key value pairs.
|
---|
489 | here = paramstring.begin();
|
---|
490 | end = paramstring.end();
|
---|
491 | while (here != end)
|
---|
492 | {
|
---|
493 | // reset key and value
|
---|
494 | key.clear();
|
---|
495 | value.clear();
|
---|
496 |
|
---|
497 | // get key
|
---|
498 | while (here != end)
|
---|
499 | {
|
---|
500 | if (*here == ',')
|
---|
501 | {
|
---|
502 | // have a key with no value
|
---|
503 | break;
|
---|
504 | }
|
---|
505 | else if (*here == '=')
|
---|
506 | {
|
---|
507 | // found the end of the key
|
---|
508 | here ++;
|
---|
509 | break;
|
---|
510 | }
|
---|
511 | else if (*here == ' ')
|
---|
512 | {
|
---|
513 | // do nothing (ignore spaces)
|
---|
514 | }
|
---|
515 | else
|
---|
516 | {
|
---|
517 | // character in key
|
---|
518 | key.push_back (*here); // copy this character
|
---|
519 | }
|
---|
520 | here ++;
|
---|
521 | }
|
---|
522 |
|
---|
523 | // get value
|
---|
524 | while (here != end)
|
---|
525 | {
|
---|
526 | if (*here == '=')
|
---|
527 | {
|
---|
528 | // multiple values for one key, ignore previous
|
---|
529 | // values
|
---|
530 | value.clear();
|
---|
531 | }
|
---|
532 | else if (*here == ',')
|
---|
533 | {
|
---|
534 | // found the end of the value
|
---|
535 | here ++;
|
---|
536 | break;
|
---|
537 | }
|
---|
538 | else if (*here == ' ')
|
---|
539 | {
|
---|
540 | // do nothing (ignore spaces)
|
---|
541 | }
|
---|
542 | else
|
---|
543 | {
|
---|
544 | // character in value
|
---|
545 | value.push_back (*here); // copy this character
|
---|
546 | }
|
---|
547 | here ++;
|
---|
548 | }
|
---|
549 |
|
---|
550 | // if a key was found insert the key/value pair in
|
---|
551 | // the map
|
---|
552 | if (!key.empty())
|
---|
553 | {
|
---|
554 | paramhash[key] = value;
|
---|
555 | }
|
---|
556 | }
|
---|
557 | }
|
---|
558 |
|
---|
559 |
|
---|
560 | void joinparams (const paramhashtype ¶mhash, text_t ¶mstring)
|
---|
561 | {
|
---|
562 | //set paramstring to an empty string
|
---|
563 | paramstring.clear();
|
---|
564 |
|
---|
565 | //iterate through the paramhash
|
---|
566 | paramhashtype::const_iterator thepair;
|
---|
567 | int firstparam = 1;
|
---|
568 |
|
---|
569 | for (thepair=paramhash.begin();thepair!=paramhash.end(); thepair++)
|
---|
570 | {
|
---|
571 | if (!firstparam) paramstring.push_back(',');
|
---|
572 | firstparam = 0;
|
---|
573 |
|
---|
574 | // insert pairs of "key=value"
|
---|
575 | text_t thevalue;
|
---|
576 | paramstring.append((*thepair).first);
|
---|
577 | paramstring.push_back('=');
|
---|
578 | paramstring.append((*thepair).second);
|
---|
579 | }
|
---|
580 | }
|
---|
581 |
|
---|
582 |
|
---|
583 |
|
---|
584 | /////////////////////////////////////
|
---|
585 | // parsing support functions
|
---|
586 | /////////////////////////////////////
|
---|
587 |
|
---|
588 | inline int my_isspace (char ch)
|
---|
589 | {
|
---|
590 | unsigned char c = ch;
|
---|
591 | return (((c > 0) && (c <= 31)) || (c == ' '));
|
---|
592 | }
|
---|
593 |
|
---|
594 |
|
---|
595 | inline int my_isalpha (char c)
|
---|
596 | {
|
---|
597 | return ((c >= 'A' && c <= 'Z') ||
|
---|
598 | (c >= 'a' && c <= 'z'));
|
---|
599 | }
|
---|
600 |
|
---|
601 |
|
---|
602 | // as we are using one character lookahead the
|
---|
603 | // value of line might be off by one.
|
---|
604 | inline char my_get (istream &fin, int &line)
|
---|
605 | {
|
---|
606 | char c;
|
---|
607 | fin.get(c);
|
---|
608 | if (c == '\n') line++;
|
---|
609 | return c;
|
---|
610 | }
|
---|
611 |
|
---|
612 |
|
---|
613 | inline unsigned short my_ttnextchar (text_t::const_iterator &here,
|
---|
614 | text_t::const_iterator &end)
|
---|
615 | {
|
---|
616 | if (here != end)
|
---|
617 | {
|
---|
618 | here++;
|
---|
619 | if (here != end) return (*here);
|
---|
620 | }
|
---|
621 | return '\0';
|
---|
622 | }
|
---|
623 |
|
---|
624 |
|
---|
625 |
|
---|
626 | /////////////////////////////////////
|
---|
627 | // methods for display
|
---|
628 | /////////////////////////////////////
|
---|
629 |
|
---|
630 | // public methods for display
|
---|
631 |
|
---|
632 | displayclass::displayclass ()
|
---|
633 | {
|
---|
634 | defaultmacros = new defaultmacros_t;
|
---|
635 | defaultfiles = new fileinfomap;
|
---|
636 |
|
---|
637 | orderparamlist = new paramspeclist;
|
---|
638 | currentmacros = new currentmacros_t;
|
---|
639 |
|
---|
640 | outc = NULL;
|
---|
641 | }
|
---|
642 |
|
---|
643 |
|
---|
644 | displayclass::~displayclass ()
|
---|
645 | {
|
---|
646 | delete defaultmacros;
|
---|
647 | delete defaultfiles;
|
---|
648 |
|
---|
649 | delete orderparamlist;
|
---|
650 | delete currentmacros;
|
---|
651 | }
|
---|
652 |
|
---|
653 | // setdefaultmacro adds an entry to the list of default macros
|
---|
654 | // returns 0 if there was no error,
|
---|
655 | // -1 if it redefined a macro
|
---|
656 | // -2 if it hid a Global macro
|
---|
657 | // -3 if it redefined a macro and hid a Global macro
|
---|
658 | // -4 if no macroname was supplied
|
---|
659 | int displayclass::setdefaultmacro (text_t package, const text_t ¯oname,
|
---|
660 | text_t params, const text_t ¯ovalue)
|
---|
661 | {
|
---|
662 | return setdefaultmacro (macroname, package, params, macrovalue, "memory");
|
---|
663 | }
|
---|
664 |
|
---|
665 |
|
---|
666 |
|
---|
667 | // loads a default macro file (if it isn't already loaded)
|
---|
668 | // returns 0 if didn't need to load the file (it was already loaded)
|
---|
669 | // 1 if was (re)loaded
|
---|
670 | // -1 an error occurred while trying to load the file
|
---|
671 | int displayclass::loaddefaultmacros (text_t thisfilename)
|
---|
672 | {
|
---|
673 | // convert the filename to a C string
|
---|
674 | char *filenamestr = thisfilename.getcstr();
|
---|
675 | outconvertclass text_t2ascii;
|
---|
676 |
|
---|
677 | // see if we need to open this file -- this isn't implemented yet
|
---|
678 |
|
---|
679 | // open the file
|
---|
680 | ifstream fin(filenamestr);
|
---|
681 | if (fin.fail()) return -1; // read failed
|
---|
682 |
|
---|
683 | text_t package = "Global";
|
---|
684 | int line = 1;
|
---|
685 | char c = my_get(fin, line); // pre-fetch the next character
|
---|
686 |
|
---|
687 | text_t macropackage, macroname, macroparameters, macrovalue;
|
---|
688 | int err; // for keeping track of whether an error occurred somewhere
|
---|
689 |
|
---|
690 | while (!fin.eof())
|
---|
691 | {
|
---|
692 | // expect: white space, comment, "package", or macroname
|
---|
693 | if (my_isspace(c))
|
---|
694 | {
|
---|
695 | // found some white-space
|
---|
696 | c = my_get(fin, line);
|
---|
697 | }
|
---|
698 | else if (c == '#')
|
---|
699 | {
|
---|
700 | // found the start of a comment
|
---|
701 | // skip all characters up to the end of the line
|
---|
702 | c = my_get(fin, line); // skip the '#'
|
---|
703 | while (!fin.eof ())
|
---|
704 | {
|
---|
705 | if (c == '\n') break;
|
---|
706 | c = my_get(fin, line);
|
---|
707 | }
|
---|
708 |
|
---|
709 | }
|
---|
710 | else if (c == 'p')
|
---|
711 | {
|
---|
712 | // found the start of 'package' (hopefully)
|
---|
713 | // get everything up to the next space
|
---|
714 | text_t tmp;
|
---|
715 | while (!fin.eof() && my_isalpha(c))
|
---|
716 | {
|
---|
717 | tmp.push_back((unsigned char)c);
|
---|
718 | c = my_get(fin, line);
|
---|
719 | }
|
---|
720 | // see if we have a package name
|
---|
721 | if (tmp == "package")
|
---|
722 | {
|
---|
723 | // skip all white space
|
---|
724 | while (!fin.eof() && my_isspace(c))
|
---|
725 | c = my_get(fin, line);
|
---|
726 |
|
---|
727 | // get the package name
|
---|
728 | tmp.clear(); // init tmp
|
---|
729 | while (!fin.eof() && my_isalpha(c))
|
---|
730 | {
|
---|
731 | tmp.push_back((unsigned char)c);
|
---|
732 | c = my_get(fin, line);
|
---|
733 | }
|
---|
734 | package = tmp;
|
---|
735 | if (package.empty()) package = "Global";
|
---|
736 |
|
---|
737 | }
|
---|
738 | else
|
---|
739 | {
|
---|
740 | // error
|
---|
741 | cerr << "Expected 'package' on line " << line << "\n";
|
---|
742 | }
|
---|
743 |
|
---|
744 | }
|
---|
745 | else if (c == '_')
|
---|
746 | {
|
---|
747 | // found the start of a macro (hopefully)
|
---|
748 | c = my_get(fin, line); // skip the _
|
---|
749 |
|
---|
750 | // init variables
|
---|
751 | err = 0;
|
---|
752 | macropackage = package;
|
---|
753 | macroname.clear(); // init macroname
|
---|
754 | macroparameters.clear(); // init macroname
|
---|
755 | macrovalue.clear(); // init macroname
|
---|
756 |
|
---|
757 | // get the macro name
|
---|
758 | while ((!fin.eof()) && (!my_isspace(c)) &&
|
---|
759 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
760 | (macroname.size() < 80))
|
---|
761 | {
|
---|
762 | macroname.push_back((unsigned char)c);
|
---|
763 | c = my_get(fin, line);
|
---|
764 | }
|
---|
765 |
|
---|
766 | if (c == ':')
|
---|
767 | {
|
---|
768 | // we actually had the macro package
|
---|
769 | c = my_get(fin, line); // skip :
|
---|
770 | macropackage = macroname;
|
---|
771 | macroname.clear ();
|
---|
772 |
|
---|
773 | // get the macro name (honest!)
|
---|
774 | while ((!fin.eof()) && (!my_isspace(c)) &&
|
---|
775 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
776 | (macroname.size() < 80))
|
---|
777 | {
|
---|
778 | macroname.push_back((unsigned char)c);
|
---|
779 | c = my_get(fin, line);
|
---|
780 | }
|
---|
781 | }
|
---|
782 |
|
---|
783 | if (!err && c == '_')
|
---|
784 | {
|
---|
785 | c = my_get(fin, line); // skip the _
|
---|
786 |
|
---|
787 | // skip all white space
|
---|
788 | while (!fin.eof() && my_isspace(c)) c = my_get(fin, line);
|
---|
789 | }
|
---|
790 | else err = 1;
|
---|
791 |
|
---|
792 | // get the macro parameters (optional)
|
---|
793 | if (!err && c == '[')
|
---|
794 | {
|
---|
795 | c = my_get(fin, line); // skip the [
|
---|
796 | while ((!fin.eof()) && (c != '\n') && (c != '\\') && (c != ']'))
|
---|
797 | {
|
---|
798 | macroparameters.push_back((unsigned char)c);
|
---|
799 | c = my_get(fin, line);
|
---|
800 | }
|
---|
801 |
|
---|
802 | if (c == ']')
|
---|
803 | {
|
---|
804 | c = my_get(fin, line); // skip the ]
|
---|
805 |
|
---|
806 | // skip all white space
|
---|
807 | while (!fin.eof() && my_isspace(c)) c = my_get(fin, line);
|
---|
808 | }
|
---|
809 | else err = 2;
|
---|
810 | }
|
---|
811 |
|
---|
812 | // get the macro value
|
---|
813 | if (!err && c == '{')
|
---|
814 | {
|
---|
815 | c = my_get(fin, line); // skip the {
|
---|
816 | while ((!fin.eof()) && (c != '}'))
|
---|
817 | {
|
---|
818 | if (c == '\\')
|
---|
819 | {
|
---|
820 | macrovalue.push_back((unsigned char)c); // keep the '\'
|
---|
821 | c = my_get(fin, line); // store the *next* value regardless
|
---|
822 | if (!fin.eof()) macrovalue.push_back((unsigned char)c);
|
---|
823 | c = my_get(fin, line);
|
---|
824 | }
|
---|
825 | macrovalue.push_back((unsigned char)c);
|
---|
826 | c = my_get(fin, line);
|
---|
827 | }
|
---|
828 |
|
---|
829 | if (c == '}')
|
---|
830 | {
|
---|
831 | c = my_get(fin, line); // skip the }
|
---|
832 |
|
---|
833 | // define the macro
|
---|
834 | err = setdefaultmacro (macropackage, macroname, macroparameters,
|
---|
835 | thisfilename, macrovalue);
|
---|
836 | if (err == -1 || err == -3)
|
---|
837 | {
|
---|
838 | cerr << text_t2ascii << "Warning: redefinition of _" <<
|
---|
839 | package << ":" << macroname << "_[" << macroparameters <<
|
---|
840 | "] on line ";
|
---|
841 | cerr << line;
|
---|
842 | cerr << text_t2ascii << " of " << thisfilename << "\n";
|
---|
843 |
|
---|
844 | }
|
---|
845 | else if (err == -2)
|
---|
846 | {
|
---|
847 | cerr << text_t2ascii << "Warning: _" <<
|
---|
848 | package << ":" << macroname << "_[" << macroparameters <<
|
---|
849 | "] on line ";
|
---|
850 | cerr << line;
|
---|
851 | cerr << text_t2ascii << " of " <<
|
---|
852 | thisfilename << " hides a Global macro with the same name\n";
|
---|
853 |
|
---|
854 | }
|
---|
855 | else if (err == -4)
|
---|
856 | {
|
---|
857 | cerr << text_t2ascii << "Error: macro name expected on line ";
|
---|
858 | cerr << line ;
|
---|
859 | cerr << text_t2ascii << " of " << thisfilename << "\n";
|
---|
860 | }
|
---|
861 |
|
---|
862 | err = 0; // for the test below
|
---|
863 | }
|
---|
864 | else err = 3;
|
---|
865 | }
|
---|
866 | else err = 4;
|
---|
867 |
|
---|
868 | if (err)
|
---|
869 | {
|
---|
870 | // found an error, skip to the end of the line
|
---|
871 | cerr << text_t2ascii << "Err: Unexpected input on line ";
|
---|
872 | cerr << line;
|
---|
873 | cerr << text_t2ascii << " (";
|
---|
874 | cerr << err;
|
---|
875 | cerr << text_t2ascii << ")\n";
|
---|
876 | while (!fin.eof ())
|
---|
877 | {
|
---|
878 | if (c == '\n') break;
|
---|
879 | c = my_get(fin, line);
|
---|
880 | }
|
---|
881 | }
|
---|
882 |
|
---|
883 | }
|
---|
884 | else
|
---|
885 | {
|
---|
886 | // found an error, skip to the end of the line
|
---|
887 | cerr << "Error: Unexpected input on line " << line << "\n";
|
---|
888 | while (!fin.eof ())
|
---|
889 | {
|
---|
890 | if (c == '\n') break;
|
---|
891 | c = my_get(fin, line);
|
---|
892 | }
|
---|
893 |
|
---|
894 | }
|
---|
895 | }
|
---|
896 |
|
---|
897 | fin.close ();
|
---|
898 |
|
---|
899 | // free up memory
|
---|
900 | delete filenamestr;
|
---|
901 | return 0;
|
---|
902 | }
|
---|
903 |
|
---|
904 |
|
---|
905 | // prepares to create a page.
|
---|
906 | void displayclass::openpage (const text_t &thispageparams,
|
---|
907 | const text_t &thisprecedence)
|
---|
908 | {
|
---|
909 | // init variables
|
---|
910 | currentmacros->clear();
|
---|
911 |
|
---|
912 | // reload any default macro files which have changed.
|
---|
913 | if (checkdefaultmacrofiles() < 0)
|
---|
914 | {
|
---|
915 | // print error message
|
---|
916 | }
|
---|
917 |
|
---|
918 | setpageparams (thispageparams, thisprecedence);
|
---|
919 | }
|
---|
920 |
|
---|
921 |
|
---|
922 | // changes the parameters for the current page.
|
---|
923 | void displayclass::setpageparams (text_t thispageparams,
|
---|
924 | text_t thisprecedence)
|
---|
925 | {
|
---|
926 | paramhashtype thissplitparams, splittheseparams;
|
---|
927 | precedencetype precedhash;
|
---|
928 | text_tset::iterator text_tsetit;
|
---|
929 | paramspec tmpps;
|
---|
930 |
|
---|
931 | precedence = thisprecedence;
|
---|
932 | calcprecedence(thisprecedence, precedhash);
|
---|
933 |
|
---|
934 | splitparams(thispageparams, thissplitparams);
|
---|
935 | joinparams(thissplitparams, thispageparams);
|
---|
936 | params = thispageparams;
|
---|
937 |
|
---|
938 | // get a list of parameters with their specificness
|
---|
939 | orderparamlist->erase(orderparamlist->begin(), orderparamlist->end());
|
---|
940 | for (text_tsetit=allparams.begin();
|
---|
941 | text_tsetit!=allparams.end();
|
---|
942 | text_tsetit++)
|
---|
943 | {
|
---|
944 | tmpps.param = (*text_tsetit);
|
---|
945 | splitparams(tmpps.param, splittheseparams);
|
---|
946 | tmpps.spec = getspecificness(thissplitparams, splittheseparams, precedhash);
|
---|
947 | if (tmpps.spec >= 0)
|
---|
948 | {
|
---|
949 | orderparamlist->push_back (tmpps);
|
---|
950 | }
|
---|
951 | }
|
---|
952 |
|
---|
953 | // sort the list
|
---|
954 | sort(orderparamlist->begin(), orderparamlist->end());
|
---|
955 |
|
---|
956 | // paramspeclist::iterator pshere = orderparamlist->begin();
|
---|
957 | // paramspeclist::iterator psend = orderparamlist->end();
|
---|
958 | // while (pshere != psend)
|
---|
959 | // {
|
---|
960 | // cerr << text_t2ascii << "param=" << (*pshere).param;
|
---|
961 | // cerr << " spec=" << (int)((*pshere).spec) << "\n";
|
---|
962 | // pshere++;
|
---|
963 | // }
|
---|
964 | }
|
---|
965 |
|
---|
966 |
|
---|
967 | // overrides (or sets) a macro for the current page.
|
---|
968 | // returns 0 if there was no error,
|
---|
969 | // -1 if it redefined a macro
|
---|
970 | // -4 if no macroname was supplied
|
---|
971 | int displayclass::setmacro (const text_t ¯oname,
|
---|
972 | text_t package,
|
---|
973 | const text_t ¯ovalue)
|
---|
974 | {
|
---|
975 | // make sure a macroname was supplied
|
---|
976 | if (macroname.empty()) return -4;
|
---|
977 |
|
---|
978 | // make package "Global" if it doesn't point to anything yet
|
---|
979 | if (package.empty()) package = "Global";
|
---|
980 |
|
---|
981 | // set the macro
|
---|
982 | return currentmacros->setmacro(package, macroname, "memory", macrovalue);
|
---|
983 | }
|
---|
984 |
|
---|
985 |
|
---|
986 | void displayclass::expandstring (const text_t &inputtext, text_t &outputtext)
|
---|
987 | {
|
---|
988 | expandstring("", inputtext, outputtext);
|
---|
989 | }
|
---|
990 |
|
---|
991 |
|
---|
992 | void displayclass::expandstring (text_t package, const text_t &inputtext,
|
---|
993 | text_t &outputtext, int recursiondepth)
|
---|
994 | {
|
---|
995 | text_t macroname, macropackage, macroargs;
|
---|
996 | text_t::const_iterator tthere = inputtext.begin();
|
---|
997 | text_t::const_iterator ttend = inputtext.end();
|
---|
998 | unsigned short c;
|
---|
999 |
|
---|
1000 | if (package.empty()) package = "Global";
|
---|
1001 |
|
---|
1002 | outputtext.clear();
|
---|
1003 |
|
---|
1004 | // use one-character lookahead
|
---|
1005 | if (tthere != ttend) c = (*tthere);
|
---|
1006 | while (tthere != ttend)
|
---|
1007 | {
|
---|
1008 | if (c == '\\')
|
---|
1009 | {
|
---|
1010 | // found an escape character
|
---|
1011 | c = my_ttnextchar (tthere, ttend); // skip the escape character
|
---|
1012 | if (tthere != ttend)
|
---|
1013 | {
|
---|
1014 | if (c == 'n') outputtext.push_back('\n');
|
---|
1015 | else if (c == 't') outputtext.push_back('\t');
|
---|
1016 | else outputtext.push_back(c);
|
---|
1017 | }
|
---|
1018 | c = my_ttnextchar (tthere, ttend);
|
---|
1019 |
|
---|
1020 | }
|
---|
1021 | else if (c == '_')
|
---|
1022 | {
|
---|
1023 | // might have found the start of a macro
|
---|
1024 |
|
---|
1025 | // embedded macros (macros within the names
|
---|
1026 | // of other macros) are no longer supported -- Rodger.
|
---|
1027 |
|
---|
1028 | // save the current state (in case we need to back out)
|
---|
1029 | text_t::const_iterator savedtthere = tthere;
|
---|
1030 | unsigned short savedc = c;
|
---|
1031 |
|
---|
1032 | macroname.clear();
|
---|
1033 | macropackage = package;
|
---|
1034 | macroargs.clear();
|
---|
1035 |
|
---|
1036 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
1037 |
|
---|
1038 | // get the macroname
|
---|
1039 | while (tthere != ttend && (!my_isspace(c)) &&
|
---|
1040 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
1041 | (macroname.size() < 80))
|
---|
1042 | {
|
---|
1043 | macroname.push_back((unsigned char)c);
|
---|
1044 | c = my_ttnextchar (tthere, ttend);
|
---|
1045 | }
|
---|
1046 |
|
---|
1047 | if (c == ':')
|
---|
1048 | {
|
---|
1049 | // we actually had the macro package
|
---|
1050 | c = my_ttnextchar (tthere, ttend);
|
---|
1051 | macropackage = macroname;
|
---|
1052 | macroname.clear ();
|
---|
1053 |
|
---|
1054 | // get the macro name (honest!)
|
---|
1055 | while ((tthere != ttend) && (!my_isspace(c)) &&
|
---|
1056 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
1057 | (macroname.size() < 80))
|
---|
1058 | {
|
---|
1059 | macroname.push_back((unsigned char)c);
|
---|
1060 | c = my_ttnextchar (tthere, ttend);
|
---|
1061 | }
|
---|
1062 | }
|
---|
1063 |
|
---|
1064 | if ((tthere != ttend) && (c == '_') &&
|
---|
1065 | (macroname.size() > 0))
|
---|
1066 | {
|
---|
1067 | // found a macro!!!! (maybe)
|
---|
1068 |
|
---|
1069 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
1070 |
|
---|
1071 | // get the parameters (if there are any)
|
---|
1072 | if ((tthere != ttend) && (c == '('))
|
---|
1073 | {
|
---|
1074 | c = my_ttnextchar (tthere, ttend); // skip '('
|
---|
1075 |
|
---|
1076 | // have to be careful of quotes
|
---|
1077 | unsigned short quote = '\0';
|
---|
1078 | while (tthere != ttend)
|
---|
1079 | {
|
---|
1080 | if (c == '\\')
|
---|
1081 | {
|
---|
1082 | // have an escape character, save escape
|
---|
1083 | // character and next character as well
|
---|
1084 | macroargs.push_back (c);
|
---|
1085 | c = my_ttnextchar (tthere, ttend);
|
---|
1086 |
|
---|
1087 | }
|
---|
1088 | else if (quote == '\0')
|
---|
1089 | {
|
---|
1090 | // not in a quote at the moment
|
---|
1091 | if (c == ')')
|
---|
1092 | {
|
---|
1093 | // found end of the arguments
|
---|
1094 | c = my_ttnextchar (tthere, ttend); // skip ')'
|
---|
1095 | break;
|
---|
1096 |
|
---|
1097 | }
|
---|
1098 | else if (c == '\'' || c == '\"')
|
---|
1099 | {
|
---|
1100 | // found a quote
|
---|
1101 | quote = c;
|
---|
1102 | }
|
---|
1103 |
|
---|
1104 | }
|
---|
1105 | else
|
---|
1106 | {
|
---|
1107 | // we are in a quote
|
---|
1108 | if (c == quote) quote = '\0';
|
---|
1109 | }
|
---|
1110 |
|
---|
1111 | // save this character
|
---|
1112 | if (tthere != ttend) macroargs.push_back (c);
|
---|
1113 | c = my_ttnextchar (tthere, ttend);
|
---|
1114 | }
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | //
|
---|
1118 | // we now have the macropackage, macroname, and macroargs
|
---|
1119 | //
|
---|
1120 |
|
---|
1121 | // try to expand out this macro
|
---|
1122 | text_t expandedmacro;
|
---|
1123 | if (macro (macroname, macropackage, macroargs, expandedmacro, recursiondepth))
|
---|
1124 | {
|
---|
1125 | // append the expanded macro
|
---|
1126 | outputtext += expandedmacro;
|
---|
1127 | }
|
---|
1128 | else
|
---|
1129 | {
|
---|
1130 | // wasn't a macro
|
---|
1131 | tthere = savedtthere;
|
---|
1132 | c = savedc;
|
---|
1133 | outputtext.push_back(c); // the '_'
|
---|
1134 | c = my_ttnextchar (tthere, ttend);
|
---|
1135 | }
|
---|
1136 |
|
---|
1137 |
|
---|
1138 | }
|
---|
1139 | else
|
---|
1140 | {
|
---|
1141 | // wasn't a macro
|
---|
1142 | tthere = savedtthere;
|
---|
1143 | c = savedc;
|
---|
1144 | outputtext.push_back(c); // the '_'
|
---|
1145 | c = my_ttnextchar (tthere, ttend);
|
---|
1146 | }
|
---|
1147 |
|
---|
1148 | }
|
---|
1149 | else
|
---|
1150 | {
|
---|
1151 | // nothing of interest
|
---|
1152 | outputtext.push_back(c); // the '_'
|
---|
1153 | c = my_ttnextchar (tthere, ttend);
|
---|
1154 | }
|
---|
1155 | }
|
---|
1156 | }
|
---|
1157 |
|
---|
1158 |
|
---|
1159 | // protected methods for display
|
---|
1160 |
|
---|
1161 | // reloads any default macro files which have changed
|
---|
1162 | // returns 0 no errors occurred
|
---|
1163 | // -1 an error occurred while trying to load one of the files
|
---|
1164 | int displayclass::checkdefaultmacrofiles ()
|
---|
1165 | {
|
---|
1166 | // this isn't implemented yet
|
---|
1167 | return 0;
|
---|
1168 | }
|
---|
1169 |
|
---|
1170 | // setdefaultmacro adds an entry to the list of default macros
|
---|
1171 | // returns 0 if there was no error,
|
---|
1172 | // -1 if it redefined a macro
|
---|
1173 | // -2 if it hid a Global macro
|
---|
1174 | // -3 if it redefined a macro and hid a Global macro
|
---|
1175 | // -4 if no macroname was supplied
|
---|
1176 | int displayclass::setdefaultmacro (text_t package, const text_t ¯oname,
|
---|
1177 | text_t params, const text_t &filename,
|
---|
1178 | const text_t ¯ovalue)
|
---|
1179 | {
|
---|
1180 | // make sure a macroname was supplied
|
---|
1181 | if (macroname.empty()) return -4;
|
---|
1182 |
|
---|
1183 | // put the parameters in a standard form
|
---|
1184 | paramhashtype paramhash;
|
---|
1185 | if (params.empty()) params = "ignore=yes";
|
---|
1186 | splitparams (params, paramhash);
|
---|
1187 | joinparams (paramhash, params);
|
---|
1188 |
|
---|
1189 | // make package "Global" if it doesn't point to anything yet
|
---|
1190 | if (package.empty()) package = "Global";
|
---|
1191 |
|
---|
1192 | // remember these parameters
|
---|
1193 | allparams.insert (params);
|
---|
1194 |
|
---|
1195 | // remember this filename (this part isn't finished yet -- Rodger).
|
---|
1196 |
|
---|
1197 | // set the macro
|
---|
1198 | return defaultmacros->setmacro(package, macroname, params, filename, macrovalue);
|
---|
1199 | }
|
---|
1200 |
|
---|
1201 | // (recursively) expand out a macro
|
---|
1202 | // returns true if the macro was found
|
---|
1203 | // false if the macro was not found
|
---|
1204 | bool displayclass::macro (const text_t ¯oname, text_t macropackage,
|
---|
1205 | const text_t ¯oparam, text_t &outputtext,
|
---|
1206 | int recursiondepth)
|
---|
1207 | {
|
---|
1208 | outconvertclass text_t2ascii;
|
---|
1209 | text_tlist splitmacroparam;
|
---|
1210 | text_t::const_iterator hereit, endit;
|
---|
1211 | text_t aparam;
|
---|
1212 | unsigned short c, quote;
|
---|
1213 |
|
---|
1214 | // cerr << "r: " << recursiondepth << "\n";
|
---|
1215 |
|
---|
1216 | // check for deep recursion
|
---|
1217 | if (recursiondepth >= MAXRECURSIONDEPTH)
|
---|
1218 | {
|
---|
1219 | cerr << "Warning: deep recursion, limiting macro expansion\n";
|
---|
1220 | return false;
|
---|
1221 | }
|
---|
1222 |
|
---|
1223 | // check the macropackage
|
---|
1224 | if (macropackage.empty()) macropackage = "Global";
|
---|
1225 |
|
---|
1226 | // get the parameters (but don't expand them)
|
---|
1227 | if (macroparam.size() > 0) {
|
---|
1228 | // set up for loop
|
---|
1229 | hereit = macroparam.begin();
|
---|
1230 | endit = macroparam.end();
|
---|
1231 | if (hereit != endit) c = (*hereit);
|
---|
1232 |
|
---|
1233 | while (hereit != endit) {
|
---|
1234 | // get the next parameter
|
---|
1235 | aparam.clear();
|
---|
1236 | quote = '\0'; // not-quoted unless proven quoted
|
---|
1237 |
|
---|
1238 | // ignore initial whitespace
|
---|
1239 | while ((hereit!=endit)&&my_isspace(c)) c=my_ttnextchar(hereit,endit);
|
---|
1240 |
|
---|
1241 | // look for the end of the parameter
|
---|
1242 | while (hereit != endit) {
|
---|
1243 | if (c == '\\') {
|
---|
1244 | // found escape character, also get next character
|
---|
1245 | aparam.push_back(c);
|
---|
1246 | c = my_ttnextchar (hereit, endit);
|
---|
1247 | if (hereit != endit) aparam.push_back(c);
|
---|
1248 |
|
---|
1249 | } else if (quote=='\0' && (c=='\'' || c=='"')) {
|
---|
1250 | // found a quoted section
|
---|
1251 | quote = c;
|
---|
1252 |
|
---|
1253 | } else if (quote!='\0' && c==quote) {
|
---|
1254 | // found the end of a quote
|
---|
1255 | quote = '\0';
|
---|
1256 |
|
---|
1257 | } else if (quote=='\0' && c==',') {
|
---|
1258 | // found the end of a parameter
|
---|
1259 | c = my_ttnextchar (hereit, endit);
|
---|
1260 | break;
|
---|
1261 |
|
---|
1262 | } else {
|
---|
1263 | // ordinary character
|
---|
1264 | aparam.push_back(c);
|
---|
1265 | }
|
---|
1266 |
|
---|
1267 | c = my_ttnextchar (hereit, endit);
|
---|
1268 | }
|
---|
1269 |
|
---|
1270 | // add this parameter to the list
|
---|
1271 | splitmacroparam.push_back(aparam);
|
---|
1272 | }
|
---|
1273 | }
|
---|
1274 |
|
---|
1275 | // I'm only supporting a simple version of _If_ at the moment
|
---|
1276 | if (macroname == "If")
|
---|
1277 | {
|
---|
1278 | // get the condition, then clause and else clause
|
---|
1279 | text_tlist::iterator paramcond = splitmacroparam.begin();
|
---|
1280 | text_tlist::iterator paramend = splitmacroparam.end();
|
---|
1281 | text_tlist::iterator paramthen = paramend;
|
---|
1282 | text_tlist::iterator paramelse = paramend;
|
---|
1283 |
|
---|
1284 | if (paramcond != paramend)
|
---|
1285 | {
|
---|
1286 | paramthen = paramcond;
|
---|
1287 | paramthen++;
|
---|
1288 | }
|
---|
1289 | if (paramthen != paramend)
|
---|
1290 | {
|
---|
1291 | paramelse = paramthen;
|
---|
1292 | paramelse++;
|
---|
1293 | }
|
---|
1294 |
|
---|
1295 | // will always output something
|
---|
1296 | outputtext.clear();
|
---|
1297 |
|
---|
1298 | // expand out the first parameter
|
---|
1299 | if (paramcond != paramend)
|
---|
1300 | {
|
---|
1301 | text_t tmpoutput;
|
---|
1302 | expandstring (macropackage, *paramcond, tmpoutput, recursiondepth+1);
|
---|
1303 |
|
---|
1304 | // test the expanded string
|
---|
1305 | if (tmpoutput.size() > 1 ||
|
---|
1306 | (tmpoutput.size() == 1 && tmpoutput[0] != '0'))
|
---|
1307 | {
|
---|
1308 | // true
|
---|
1309 | if (paramthen != paramend)
|
---|
1310 | expandstring (macropackage, *paramthen, outputtext, recursiondepth+1);
|
---|
1311 | }
|
---|
1312 | else
|
---|
1313 | {
|
---|
1314 | // false
|
---|
1315 | if (paramelse != paramend)
|
---|
1316 | expandstring (macropackage, *paramelse, outputtext, recursiondepth+1);
|
---|
1317 | }
|
---|
1318 | }
|
---|
1319 |
|
---|
1320 | return true;
|
---|
1321 | }
|
---|
1322 |
|
---|
1323 | // try and find this macro
|
---|
1324 |
|
---|
1325 | // this list might be replaced by something a little more
|
---|
1326 | // sophisticated in the future.
|
---|
1327 | text_tlist packagelist;
|
---|
1328 | packagelist.push_back (macropackage);
|
---|
1329 | packagelist.push_back ("Global");
|
---|
1330 |
|
---|
1331 | paramspeclist::iterator paramhere, paramend;
|
---|
1332 | text_tlist::iterator packagehere = packagelist.begin();
|
---|
1333 | text_tlist::iterator packageend = packagelist.end();
|
---|
1334 | mvalue *macrovalue = NULL;
|
---|
1335 | while ((macrovalue == NULL) && (packagehere != packageend))
|
---|
1336 | {
|
---|
1337 | // first look in the currentmacros
|
---|
1338 | macrovalue = currentmacros->macro_find(*packagehere, macroname);
|
---|
1339 | if (macrovalue == NULL)
|
---|
1340 | macrovalue = currentmacros->macro_find("Style", macroname);
|
---|
1341 |
|
---|
1342 | // look in the default macros
|
---|
1343 | if (macrovalue == NULL)
|
---|
1344 | {
|
---|
1345 | // next look in the defaultmacros
|
---|
1346 | if (defaultmacros->macro_find (*packagehere, macroname) != NULL)
|
---|
1347 | {
|
---|
1348 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
1349 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
1350 | {
|
---|
1351 | // cerr << text_t2ascii << "\npackage: " << *packagehere << "\n";
|
---|
1352 | // cerr << text_t2ascii << "macroname: " << macroname << "\n";
|
---|
1353 | // cerr << text_t2ascii << "param: " << (*paramhere).param << "\n";
|
---|
1354 | // cerr << "spec: " << (int)((*paramhere).spec) << "\n";
|
---|
1355 | macrovalue = defaultmacros->parameter_find(*packagehere, macroname,
|
---|
1356 | (*paramhere).param);
|
---|
1357 | paramhere++;
|
---|
1358 | }
|
---|
1359 | }
|
---|
1360 | }
|
---|
1361 |
|
---|
1362 | // and again in the package "Style"
|
---|
1363 | if (macrovalue == NULL)
|
---|
1364 | {
|
---|
1365 | // next look in the defaultmacros
|
---|
1366 | if (defaultmacros->macro_find ("Style", macroname) != NULL)
|
---|
1367 | {
|
---|
1368 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
1369 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
1370 | {
|
---|
1371 | macrovalue = defaultmacros->parameter_find("Style", macroname,
|
---|
1372 | (*paramhere).param);
|
---|
1373 | paramhere++;
|
---|
1374 | }
|
---|
1375 | }
|
---|
1376 | }
|
---|
1377 | if (macrovalue == NULL) packagehere++;
|
---|
1378 | }
|
---|
1379 |
|
---|
1380 | if (macrovalue != NULL)
|
---|
1381 | {
|
---|
1382 | // we found a macro
|
---|
1383 |
|
---|
1384 | // replace all the option macros (_1_, _2_, ...) in the
|
---|
1385 | // value of this macro
|
---|
1386 | text_t tempmacrovalue;
|
---|
1387 | tempmacrovalue.clear();
|
---|
1388 | hereit = macrovalue->value.begin();
|
---|
1389 | endit = macrovalue->value.end();
|
---|
1390 | if (hereit != endit) c = (*hereit);
|
---|
1391 | while (hereit != endit)
|
---|
1392 | {
|
---|
1393 | if (c == '\\')
|
---|
1394 | {
|
---|
1395 | // found an escape character
|
---|
1396 | tempmacrovalue.push_back(c);
|
---|
1397 | c = my_ttnextchar (hereit, endit);
|
---|
1398 | if (hereit != endit) tempmacrovalue.push_back(c);
|
---|
1399 | c = my_ttnextchar (hereit, endit);
|
---|
1400 | }
|
---|
1401 | else if (c == '_')
|
---|
1402 | {
|
---|
1403 | text_t::const_iterator savedhereit = hereit;
|
---|
1404 | unsigned short c2 = my_ttnextchar (hereit, endit);
|
---|
1405 | unsigned short c3 = my_ttnextchar (hereit, endit);
|
---|
1406 | if ((c2 >= '1') && (c2 <= '9') && (c3 == '_'))
|
---|
1407 | {
|
---|
1408 | // found an option macro, append the appropriate text
|
---|
1409 | text_tlist::iterator ttlisthere = splitmacroparam.begin();
|
---|
1410 | text_tlist::iterator ttlistend = splitmacroparam.end();
|
---|
1411 | while ((c2 > '1') && (ttlisthere != ttlistend))
|
---|
1412 | {
|
---|
1413 | c2--;
|
---|
1414 | ttlisthere++;
|
---|
1415 | }
|
---|
1416 | if (ttlisthere != ttlistend)
|
---|
1417 | tempmacrovalue.append(*ttlisthere);
|
---|
1418 |
|
---|
1419 | c = my_ttnextchar (hereit, endit);
|
---|
1420 |
|
---|
1421 | }
|
---|
1422 | else
|
---|
1423 | {
|
---|
1424 | // wasn't a option macro
|
---|
1425 | tempmacrovalue.push_back(c);
|
---|
1426 | hereit = savedhereit;
|
---|
1427 | c = my_ttnextchar (hereit, endit);
|
---|
1428 | }
|
---|
1429 | }
|
---|
1430 | else
|
---|
1431 | {
|
---|
1432 | tempmacrovalue.push_back(c);
|
---|
1433 | c = my_ttnextchar (hereit, endit);
|
---|
1434 | }
|
---|
1435 | }
|
---|
1436 |
|
---|
1437 | // recursively replace this macro
|
---|
1438 | expandstring (*packagehere, tempmacrovalue, outputtext, recursiondepth+1);
|
---|
1439 |
|
---|
1440 | return true;
|
---|
1441 | }
|
---|
1442 |
|
---|
1443 | cerr << text_t2ascii << "Warning: _" <<
|
---|
1444 | macropackage << ":" << macroname << "_ not found\n";
|
---|
1445 |
|
---|
1446 | return false; // didn't find the macro
|
---|
1447 | }
|
---|
1448 |
|
---|
1449 |
|
---|
1450 | void displayclass::printdefaultmacros ()
|
---|
1451 | {
|
---|
1452 | defpackagemap::const_iterator packagemapit;
|
---|
1453 | defmacromap::const_iterator macromapit;
|
---|
1454 | defparammap::const_iterator parammapit;
|
---|
1455 | const mvalue *mvalueptr;
|
---|
1456 | outconvertclass text_t2ascii;
|
---|
1457 |
|
---|
1458 | text_t packagename, macroname, macroparam;
|
---|
1459 |
|
---|
1460 | for (packagemapit = defaultmacros->package_begin();
|
---|
1461 | packagemapit != defaultmacros->package_end();
|
---|
1462 | packagemapit++)
|
---|
1463 | {
|
---|
1464 | packagename = (*packagemapit).first;
|
---|
1465 | // cerr << "***package : \"" << packagename << "\"\n";
|
---|
1466 |
|
---|
1467 | for (macromapit = (*packagemapit).second.begin();
|
---|
1468 | macromapit != (*packagemapit).second.end();
|
---|
1469 | macromapit++)
|
---|
1470 | {
|
---|
1471 | macroname = (*macromapit).first;
|
---|
1472 | // cerr << "***macroname : \"" << macroname << "\"\n";
|
---|
1473 |
|
---|
1474 | for (parammapit = (*macromapit).second.begin();
|
---|
1475 | parammapit != (*macromapit).second.end();
|
---|
1476 | parammapit++)
|
---|
1477 | {
|
---|
1478 | macroparam = (*parammapit).first;
|
---|
1479 | mvalueptr = &((*parammapit).second);
|
---|
1480 | cerr << text_t2ascii << "package : \"" << packagename << "\"\n";
|
---|
1481 | cerr << text_t2ascii << "macroname : \"" << macroname << "\"\n";
|
---|
1482 | cerr << text_t2ascii << "parameters: [" << macroparam << "]\n";
|
---|
1483 | cerr << text_t2ascii << "filename : \"" << mvalueptr->filename << "\"\n";
|
---|
1484 | cerr << text_t2ascii << "value : {" << mvalueptr->value << "}\n\n";
|
---|
1485 | }
|
---|
1486 | }
|
---|
1487 | }
|
---|
1488 | }
|
---|
1489 |
|
---|
1490 | void displayclass::printallparams ()
|
---|
1491 | {
|
---|
1492 | text_tset::iterator text_tsetit;
|
---|
1493 | outconvertclass text_t2ascii;
|
---|
1494 |
|
---|
1495 | cerr << text_t2ascii << "** allparams\n";
|
---|
1496 | for (text_tsetit=allparams.begin();
|
---|
1497 | text_tsetit!=allparams.end();
|
---|
1498 | text_tsetit++) {
|
---|
1499 | cerr << text_t2ascii << (*text_tsetit) << "\n";
|
---|
1500 | }
|
---|
1501 | cerr << text_t2ascii << "\n";
|
---|
1502 | }
|
---|
1503 |
|
---|
1504 |
|
---|
1505 |
|
---|
1506 | /////////////////////////////////////
|
---|
1507 | // stuff to do tricky output
|
---|
1508 | /////////////////////////////////////
|
---|
1509 |
|
---|
1510 | displayclass &operator<< (outconvertclass &theoutc, displayclass &display)
|
---|
1511 | {
|
---|
1512 | display.setconvertclass (&theoutc);
|
---|
1513 | return display;
|
---|
1514 | }
|
---|
1515 |
|
---|
1516 | displayclass &operator<< (displayclass &display, const text_t &t)
|
---|
1517 | {
|
---|
1518 | outconvertclass *theoutc = display.getconvertclass();
|
---|
1519 |
|
---|
1520 | if (theoutc == NULL) return display;
|
---|
1521 |
|
---|
1522 | text_t output;
|
---|
1523 | display.expandstring (t, output);
|
---|
1524 | (*theoutc) << output;
|
---|
1525 |
|
---|
1526 | return display;
|
---|
1527 | }
|
---|