ginac/structure.pl

   1 #!/usr/bin/perl -w
   2
   3 $input_structure='';
   4 $original_input_structure='';
   5 while (<>) {
   6         $input_structure .= '// '.$_;
   7         $original_input_structure .= $_;
   8 }
   9
  10 $original_input_structure =~ tr/ \t\n\r\f/     /;
  11 $original_input_structure =~ tr/ //s;
  12
  13 if ($original_input_structure =~ /^struct (\w+) ?\{ ?(.*)\}\;? ?$/) {
  14         $STRUCTURE=$1;
  15         $decl=$2;
  16 } else {
  17         die "illegal struct, must match 'struct name { type var; /*comment*/ ...};': $original_input_structure";
  18 }
  19
  20 # split off a part 'type var[,var...];' with a possible C-comment '/* ... */'
  21 while ($decl =~ /^ ?(\w+) ([\w \,]+)\; ?((\/\*.*?\*\/)?)(.*)$/) {
  22         $type=$1;
  23         $member=$2;
  24         $comment=$3;
  25         $decl=$5;
  26         while ($member =~ /^(\w+) ?\, ?(.*)$/) {
  27                 push @TYPES,$type;
  28                 push @MEMBERS,$1;
  29                 push @COMMENTS,$comment;
  30                 if ($comment ne '') {
  31                         $comment='/* see above */';
  32                 }
  33                 $member=$2;
  34         }
  35         if ($member !~ /^\w+$/) {
  36                 die "illegal struct, must match 'struct name { type var; /*comment*/ ...};': $input_structure";
  37         }
  38         push @TYPES,$type;
  39         push @MEMBERS,$member;
  40         push @COMMENTS,$comment;
  41 }
  42
  43 if ($decl !~ /^ ?$/) {
  44         die "illegal struct, must match 'struct name { type var; /*comment*/ ...};': $input_structure";
  45 }
  46
  47 #$STRUCTURE='teststruct';
  48 $STRUCTURE_UC=uc(${STRUCTURE});
  49 #@TYPES=('ex','ex','ex');
  50 #@MEMBERS=('q10','q20','q21');
  51
  52 sub generate {
  53         my ($template,$conj)=@_;
  54         my ($res,$N);
  55
  56         $res='';
  57         for ($N=1; $N<=$#MEMBERS+1; $N++) {
  58                 $TYPE=$TYPES[$N-1];
  59                 $MEMBER=$MEMBERS[$N-1];
  60                 $COMMENT=$COMMENTS[$N-1];
  61                 $res .= eval('"' . $template . '"');
  62                 $TYPE=''; # to avoid main::TYPE used only once warning
  63                 $MEMBER=''; # same as above
  64                 $COMMENT=''; # same as above
  65                 if ($N!=$#MEMBERS+1) {
  66                         $res .= $conj;
  67                 }
  68         }
  69         return $res;
  70 }
  71
  72 $number_of_members=$#MEMBERS+1;
  73 $constructor_arglist=generate('ex tmp_${MEMBER}',', ');
  74 $member_access_functions=generate('    const ex & ${MEMBER}(void) { return m_${MEMBER}; }',"\n");
  75 $op_access_indices_decl=generate('    static unsigned op_${MEMBER};',"\n");
  76 $op_access_indices_def=generate('unsigned ${STRUCTURE}::op_${MEMBER}=${N}-1;',"\n");
  77 $members=generate('    ex m_${MEMBER}; ${COMMENT}',"\n");
  78 $copy_statements=generate('    m_${MEMBER}=other.m_${MEMBER};',"\n");
  79 $constructor_statements=generate('m_${MEMBER}(tmp_${MEMBER})',', ');
  80 $let_op_statements=generate(
  81 '    case ${N}-1:'."\n".
  82 '        return m_${MEMBER};'."\n".
  83 '        break;',
  84 "\n");
  85 $temporary_arglist=generate('tmp_${MEMBER}',', ');
  86 $expand_statements=generate('    ex tmp_${MEMBER}=m_${MEMBER}.expand(options);',"\n");
  87 $has_statements=generate('    if (m_${MEMBER}.has(other)) return true;',"\n");
  88 $eval_statements=generate(
  89 '    ex tmp_${MEMBER}=m_${MEMBER}.eval(level-1);'."\n".
  90 '    all_are_trivially_equal = all_are_trivially_equal &&'."\n".
  91 '                              are_ex_trivially_equal(tmp_${MEMBER},m_${MEMBER});',
  92 "\n");
  93 $evalf_statements=generate(
  94 '    ex tmp_${MEMBER}=m_${MEMBER}.evalf(level-1);'."\n".
  95 '    all_are_trivially_equal = all_are_trivially_equal &&'."\n".
  96 '                              are_ex_trivially_equal(tmp_${MEMBER},m_${MEMBER});',
  97 "\n");
  98 $normal_statements=generate(
  99 '    ex tmp_${MEMBER}=m_${MEMBER}.normal(level-1);'."\n".
 100 '    all_are_trivially_equal = all_are_trivially_equal &&'."\n".
 101 '                              are_ex_trivially_equal(tmp_${MEMBER},m_${MEMBER});',
 102 "\n");
 103 $diff_statements=generate('    ex tmp_${MEMBER}=m_${MEMBER}.diff(s);',"\n");
 104 $subs_statements=generate(
 105 '    ex tmp_${MEMBER}=m_${MEMBER}.subs(ls,lr);'."\n".
 106 '    all_are_trivially_equal = all_are_trivially_equal &&'."\n".
 107 '                              are_ex_trivially_equal(tmp_${MEMBER},m_${MEMBER});',
 108 "\n");
 109 $compare_statements=generate(
 110 '    cmpval=m_${MEMBER}.compare(o.m_${MEMBER});'."\n".
 111 '    if (cmpval!=0) return cmpval;',
 112 "\n");
 113 $is_equal_statements=generate('    if (!m_${MEMBER}.is_equal(o.m_${MEMBER})) return false;',"\n");
 114 $types_ok_statements=generate(
 115 '#ifndef SKIP_TYPE_CHECK_FOR_${TYPE}'."\n".
 116 '    if (!is_ex_exactly_of_type(m_${MEMBER},${TYPE})) return false;'."\n".
 117 '#endif // ndef SKIP_TYPE_CHECK_FOR_${TYPE}',"\n");
 118
 119 $interface=<<END_OF_INTERFACE;
 120 /** \@file ${STRUCTURE}.h
 121  *
 122  *  Definition of GiNaC's user defined structure ${STRUCTURE}. */
 123
 124 /*
 125  *  This file was generated automatically by structure.pl.
 126  *  Please do not modify it directly, edit the perl script instead!
 127  *
 128  *  GiNaC Copyright (C) 1999-2002 Johannes Gutenberg University Mainz, Germany
 129  *
 130  *  This program is free software; you can redistribute it and/or modify
 131  *  it under the terms of the GNU General Public License as published by
 132  *  the Free Software Foundation; either version 2 of the License, or
 133  *  (at your option) any later version.
 134  *
 135  *  This program is distributed in the hope that it will be useful,
 136  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 137  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 138  *  GNU General Public License for more details.
 139  *
 140  *  You should have received a copy of the GNU General Public License
 141  *  along with this program; if not, write to the Free Software
 142  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 143  */
 144
 145 // structure.pl input:
 146 ${input_structure}
 147
 148 #ifndef __GINAC_${STRUCTURE_UC}_H__
 149 #define __GINAC_${STRUCTURE_UC}_H__
 150
 151 #include "structure.h"
 152
 153 namespace GiNaC {
 154
 155 class ${STRUCTURE} : public structure
 156 {
 157 // member functions
 158
 159         // default ctor, dtor, copy ctor, assignment operator and helpers
 160 public:
 161         ${STRUCTURE}();
 162         ~${STRUCTURE}();
 163         ${STRUCTURE}(${STRUCTURE} const & other);
 164         ${STRUCTURE} const & operator=(${STRUCTURE} const & other);
 165 protected:
 166         void copy(${STRUCTURE} const & other);
 167         void destroy(bool call_parent);
 168
 169         // other ctors
 170 public:
 171         ${STRUCTURE}(${constructor_arglist});
 172
 173         // functions overriding virtual functions from base classes
 174 public:
 175         basic * duplicate() const;
 176         void print(const print_context & c, unsigned level = 0) const;
 177         int nops() const;
 178         ex & let_op(int i);
 179         ex expand(unsigned options=0) const;
 180         bool has(const ex & other) const;
 181         ex eval(int level=0) const;
 182         ex evalf(int level=0) const;
 183         ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
 184         ex diff(const symbol & s) const;
 185         ex subs(const lst & ls, const lst & lr) const;
 186 protected:
 187         int compare_same_type(const basic & other) const;
 188         bool is_equal_same_type(const basic & other) const;
 189         unsigned return_type(void) const;
 190
 191         // new virtual functions which can be overridden by derived classes
 192         // none
 193
 194         // non-virtual functions in this class
 195 public:
 196 ${member_access_functions}
 197         bool types_ok(void) const;
 198
 199 // member variables
 200 protected:
 201 ${members}
 202 public:
 203 ${op_access_indices_decl}
 204 };
 205
 206 // global constants
 207
 208 extern const ${STRUCTURE} some_${STRUCTURE};
 209 extern const type_info & typeid_${STRUCTURE};
 210 extern const unsigned tinfo_${STRUCTURE};
 211
 212 } // namespace GiNaC
 213
 214 #endif // ndef _${STRUCTURE_UC}_H_
 215
 216 END_OF_INTERFACE
 217
 218 $implementation=<<END_OF_IMPLEMENTATION;
 219 /** \@file ${STRUCTURE}.cpp
 220  *
 221  *  Implementation of GiNaC's user defined structure ${STRUCTURE}. */
 222
 223 /*
 224  *  This file was generated automatically by STRUCTURE.pl.
 225  *  Please do not modify it directly, edit the perl script instead!
 226  *
 227  *  GiNaC Copyright (C) 1999-2002 Johannes Gutenberg University Mainz, Germany
 228  *
 229  *  This program is free software; you can redistribute it and/or modify
 230  *  it under the terms of the GNU General Public License as published by
 231  *  the Free Software Foundation; either version 2 of the License, or
 232  *  (at your option) any later version.
 233  *
 234  *  This program is distributed in the hope that it will be useful,
 235  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 236  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 237  *  GNU General Public License for more details.
 238  *
 239  *  You should have received a copy of the GNU General Public License
 240  *  along with this program; if not, write to the Free Software
 241  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 242  */
 243
 244 // structure.pl input:
 245 ${input_structure}
 246
 247 #include <iostream>
 248 #include <stdexcept>
 249
 250 #include "${STRUCTURE}.h"
 251 #include "print.h"
 252
 253 namespace GiNaC {
 254
 255 //////////
 256 // default ctor, destructor, copy ctor assignment operator and helpers
 257 //////////
 258
 259 // public
 260
 261 ${STRUCTURE}::${STRUCTURE}()
 262 {
 263         tinfo_key=tinfo_${STRUCTURE};
 264 }
 265
 266 ${STRUCTURE}::~${STRUCTURE}()
 267 {
 268         destroy(false);
 269 }
 270
 271 ${STRUCTURE}::${STRUCTURE}(${STRUCTURE} const & other)
 272 {
 273         copy(other);
 274 }
 275
 276 ${STRUCTURE} const & ${STRUCTURE}::operator=(${STRUCTURE} const & other)
 277 {
 278         if (this != &other) {
 279                 destroy(true);
 280                 copy(other);
 281         }
 282         return *this;
 283 }
 284
 285 // protected
 286
 287 void ${STRUCTURE}::copy(${STRUCTURE} const & other)
 288 {
 289         structure::copy(other);
 290 ${copy_statements}
 291 }
 292
 293 void ${STRUCTURE}::destroy(bool call_parent)
 294 {
 295         if (call_parent) structure::destroy(call_parent);
 296 }
 297
 298 //////////
 299 // other ctors
 300 //////////
 301
 302 // public
 303
 304 ${STRUCTURE}::${STRUCTURE}(${constructor_arglist})
 305         : ${constructor_statements}
 306 {
 307         tinfo_key=tinfo_${STRUCTURE};
 308 }
 309
 310 //////////
 311 // functions overriding virtual functions from base classes
 312 //////////
 313
 314 // public
 315
 316 basic * ${STRUCTURE}::duplicate() const
 317 {
 318         return new ${STRUCTURE}(*this);
 319 }
 320
 321 void ${STRUCTURE}::print(const print_context & c, unsigned level) const
 322 {
 323         c.s << class_name() << "()";
 324 }
 325
 326 int ${STRUCTURE}::nops() const
 327 {
 328         return ${number_of_members};
 329 }
 330
 331 ex & ${STRUCTURE}::let_op(int i)
 332 {
 333         GINAC_ASSERT(i>=0);
 334         GINAC_ASSERT(i<nops());
 335
 336         switch (i) {
 337 ${let_op_statements}
 338         }
 339         throw(std::runtime_error("${STRUCTURE}::let_op(): should not have reached this point"));
 340 }
 341
 342 ex ${STRUCTURE}::expand(unsigned options) const
 343 {
 344         bool all_are_trivially_equal=true;
 345 ${expand_statements}
 346         if (all_are_trivially_equal) {
 347                 return *this;
 348         }
 349         return ${STRUCTURE}(${temporary_arglist});
 350 }
 351
 352 // a ${STRUCTURE} 'has' an expression if it is this expression itself or a child 'has' it
 353
 354 bool ${STRUCTURE}::has(const ex & other) const
 355 {
 356         GINAC_ASSERT(other.bp!=0);
 357         if (is_equal(*other.bp)) return true;
 358 ${has_statements}
 359         return false;
 360 }
 361
 362 ex ${STRUCTURE}::eval(int level) const
 363 {
 364         if (level==1) {
 365                 return this->hold();
 366         }
 367         bool all_are_trivially_equal=true;
 368 ${eval_statements}
 369         if (all_are_trivially_equal) {
 370                 return this->hold();
 371         }
 372         return ${STRUCTURE}(${temporary_arglist});
 373 }
 374
 375 ex ${STRUCTURE}::evalf(int level) const
 376 {
 377         if (level==1) {
 378                 return *this;
 379         }
 380         bool all_are_trivially_equal=true;
 381 ${evalf_statements}
 382         if (all_are_trivially_equal) {
 383                 return *this;
 384         }
 385         return ${STRUCTURE}(${temporary_arglist});
 386 }
 387
 388 /** Implementation of ex::normal() for ${STRUCTURE}s. It normalizes the arguments
 389  *  and replaces the ${STRUCTURE} by a temporary symbol.
 390  *  \@see ex::normal */
 391 ex ${STRUCTURE}::normal(lst &sym_lst, lst &repl_lst, int level) const
 392 {
 393         if (level==1) {
 394                 return basic::normal(sym_lst,repl_lst,level);
 395         }
 396         bool all_are_trivially_equal=true;
 397 ${normal_statements}
 398         if (all_are_trivially_equal) {
 399                 return basic::normal(sym_lst,repl_lst,level);
 400         }
 401         ex n=${STRUCTURE}(${temporary_arglist});
 402         return n.bp->basic::normal(sym_lst,repl_lst,level);
 403 }
 404
 405 /** ${STRUCTURE}::diff() differentiates the children.
 406         there is no need to check for triavially equal, since diff usually
 407         does not return itself unevaluated. */
 408 ex ${STRUCTURE}::diff(const symbol & s) const
 409 {
 410 ${diff_statements}
 411         return ${STRUCTURE}(${temporary_arglist});
 412 }
 413
 414 ex ${STRUCTURE}::subs(const lst & ls, const lst & lr) const
 415 {
 416         bool all_are_trivially_equal=true;
 417 ${subs_statements}
 418         if (all_are_trivially_equal) {
 419                 return *this;
 420         }
 421         return ${STRUCTURE}(${temporary_arglist});
 422 }
 423
 424 // protected
 425
 426 int ${STRUCTURE}::compare_same_type(const basic & other) const
 427 {
 428         GINAC_ASSERT(is_of_type(other,${STRUCTURE}));
 429         ${STRUCTURE} const &o = static_cast<const ${STRUCTURE} &>(other);
 430         int cmpval;
 431 ${compare_statements}
 432         return 0;
 433 }
 434
 435 bool ${STRUCTURE}::is_equal_same_type(const basic & other) const
 436 {
 437         GINAC_ASSERT(is_of_type(other,${STRUCTURE}));
 438         ${STRUCTURE} const &o = static_cast<const ${STRUCTURE} &>(other);
 439 ${is_equal_statements}
 440         return true;
 441 }
 442
 443 unsigned ${STRUCTURE}::return_type(void) const
 444 {
 445         return return_types::noncommutative_composite;
 446 }
 447
 448 //////////
 449 // new virtual functions which can be overridden by derived classes
 450 //////////
 451
 452 // none
 453
 454 //////////
 455 // non-virtual functions in this class
 456 //////////
 457
 458 // public
 459
 460 #define SKIP_TYPE_CHECK_FOR_ex
 461 // this is a hack since there is no meaningful
 462 // is_ex_exactly_of_type(...,ex) macro definition
 463
 464 bool ${STRUCTURE}::types_ok(void) const
 465 {
 466 ${types_ok_statements}
 467         return true;
 468 }
 469
 470 //////////
 471 // static member variables
 472 //////////
 473
 474 ${op_access_indices_def}
 475
 476 //////////
 477 // global constants
 478 //////////
 479
 480 const ${STRUCTURE} some_${STRUCTURE};
 481 const type_info & typeid_${STRUCTURE}=typeid(some_${STRUCTURE});
 482 const unsigned tinfo_${STRUCTURE}=structure::register_new("${STRUCTURE}");
 483
 484 } // namespace GiNaC
 485
 486 END_OF_IMPLEMENTATION
 487
 488 print "Creating interface file ${STRUCTURE}.h...";
 489 open OUT,">${STRUCTURE}.h" or die "cannot open ${STRUCTURE}.h";
 490 print OUT $interface;
 491 close OUT;
 492 print "ok.\n";
 493
 494 print "Creating implementation file ${STRUCTURE}.cpp...";
 495 open OUT,">${STRUCTURE}.cpp" or die "cannot open ${STRUCTURE}.cpp";
 496 print OUT $implementation;
 497 close OUT;
 498 print "ok.\n";
 499
 500 print "done.\n";