+if (($#ARGV!=0) and ($#ARGV!=1)) {
+ die 'usage: container.pl type [maxargs] (type=lst or exprseq)';
+}
+
+if ($ARGV[0] eq 'lst') {
+ $type='lst';
+} elsif ($ARGV[0] eq 'exprseq') {
+ $type='exprseq';
+} else {
+ die 'only lst and exprseq supported';
+}
+
+if ($#ARGV==1) {
+ $maxargs=$ARGV[1];
+} else {
+ $maxargs=16; # must be greater or equal than the value used in function.pl
+}
+
+if ($type eq 'exprseq') {
+
+ # settings for exprseq
+ $CONTAINER="exprseq";
+ $STLHEADER="vector";
+ $reserve=1;
+ $prepend=0;
+ $sort=0;
+ $let_op=0;
+ $open_bracket='(';
+ $close_bracket=')';
+
+} elsif ($type eq 'lst') {
+
+ # settings for lst
+ $CONTAINER="lst";
+ $STLHEADER="list";
+ $reserve=0;
+ $prepend=1;
+ $sort=1;
+ $let_op=1;
+ $open_bracket='{';
+ $close_bracket='}';
+
+} else {
+ die "invalid type $type";
+}
+
+$CONTAINER_UC=uc(${CONTAINER});
+$STLT="ex".$STLHEADER;
+
+if ($reserve) {
+ $RESERVE_IMPLEMENTATION="#define RESERVE(s,size) (s).reserve(size)";
+} else {
+ $RESERVE_IMPLEMENTATION="#define RESERVE(s,size) // no reserve needed for ${STLHEADER}";
+}
+
+if ($prepend) {
+ $PREPEND_INTERFACE=<<END_OF_PREPEND_INTERFACE;
+ virtual ${CONTAINER} & prepend(const ex & b);
+ virtual ${CONTAINER} & remove_first(void);
+END_OF_PREPEND_INTERFACE
+
+ $PREPEND_IMPLEMENTATION=<<END_OF_PREPEND_IMPLEMENTATION;
+${CONTAINER} & ${CONTAINER}::prepend(const ex & b)
+{
+ ensure_if_modifiable();
+ seq.push_front(b);
+ return *this;
+}
+
+${CONTAINER} & ${CONTAINER}::remove_first(void)
+{
+ ensure_if_modifiable();
+ seq.pop_front();
+ return *this;
+}
+END_OF_PREPEND_IMPLEMENTATION
+} else {
+ $PREPEND_INTERFACE=" // no prepend possible for ${CONTAINER}";
+ $PREPEND_IMPLEMENTATION="";
+}
+
+if ($sort) {
+ $SORT_INTERFACE=<<END_OF_SORT_INTERFACE;
+ virtual ${CONTAINER} & sort(void);
+ virtual ${CONTAINER} & unique(void);
+END_OF_SORT_INTERFACE
+
+ $SORT_IMPLEMENTATION=<<END_OF_SORT_IMPLEMENTATION;
+${CONTAINER} & ${CONTAINER}::sort(void)
+{
+ ensure_if_modifiable();
+ seq.sort(ex_is_less());
+ return *this;
+}
+
+${CONTAINER} & ${CONTAINER}::unique(void)
+{
+ ensure_if_modifiable();
+ seq.unique(ex_is_equal());
+ return *this;
+}
+END_OF_SORT_IMPLEMENTATION
+} else {
+ $SORT_INTERFACE=" // no sort possible for ${CONTAINER}";
+ $SORT_IMPLEMENTATION="";
+}
+
+if ($let_op) {
+ $LET_OP_IMPLEMENTATION=<<END_OF_LET_OP_IMPLEMENTATION
+ex & ${CONTAINER}::let_op(int i)
+{
+ GINAC_ASSERT(i>=0);
+ GINAC_ASSERT(i<nops());
+
+ ${STLT}::iterator it=seq.begin();
+ for (int j=0; j<i; j++) {
+ ++it;
+ }
+ return *it;
+}
+END_OF_LET_OP_IMPLEMENTATION
+} else {
+ $LET_OP_IMPLEMENTATION="// ${CONTAINER}::let_op() will be implemented by user elsewhere";
+}
+
+sub generate_seq {
+ my ($seq_template,$n,$separator)=@_;
+ my ($res,$N);
+
+ $res='';
+ for ($N=1; $N<=$n; $N++) {
+ $res .= eval('"' . $seq_template . '"');
+ if ($N!=$n) {
+ $res .= $separator;
+ }
+ }
+ return $res;
+}
+
+sub generate_from_to {
+ my ($template,$seq_template1,$seq_separator1,$seq_template2,
+ $seq_separator2,$from,$to)=@_;
+ my ($res,$N,$SEQ);
+
+ $res='';
+ for ($N=$from; $N<=$to; $N++) {
+ $SEQ1=generate_seq($seq_template1,$N,$seq_separator1);
+ $SEQ2=generate_seq($seq_template2,$N,$seq_separator2);
+ $res .= eval('"' . $template . '"');
+ $SEQ1=''; # to avoid main::SEQ1 used only once warning
+ $SEQ2=''; # same as above
+ }
+ return $res;
+}
+
+sub generate {
+ my ($template,$seq_template1,$seq_separator1,$seq_template2,
+ $seq_separator2)=@_;
+ return generate_from_to($template,$seq_template1,$seq_separator1,
+ $seq_template2,$seq_separator2,1,$maxargs);
+}
+
+$constructors_interface=generate(
+' explicit ${CONTAINER}(${SEQ1});'."\n",
+'const ex & param${N}',', ','','');
+
+$constructors_implementation=generate(
+ <<'END_OF_CONSTRUCTORS_IMPLEMENTATION','const ex & param${N}',', ',' seq.push_back(param${N});',"\n");
+${CONTAINER}::${CONTAINER}(${SEQ1}) : basic(TINFO_${CONTAINER})
+{
+ RESERVE(seq,${N});
+${SEQ2}
+}
+END_OF_CONSTRUCTORS_IMPLEMENTATION
+
+$interface=<<END_OF_INTERFACE;
+/** \@file ${CONTAINER}.h
+ *
+ * Definition of GiNaC's ${CONTAINER}. */
+
+/*
+ * This file was generated automatically by container.pl.
+ * Please do not modify it directly, edit the perl script instead!
+ * container.pl options: \$CONTAINER=${CONTAINER}
+ * \$STLHEADER=${STLHEADER}
+ * \$reserve=${reserve}
+ * \$prepend=${prepend}
+ * \$sort=${sort}
+ * \$let_op=${let_op}
+ * \$open_bracket=${open_bracket}
+ * \$close_bracket=${close_bracket}
+ * \$maxargs=${maxargs}
+ *
+ * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __GINAC_${CONTAINER_UC}_H__
+#define __GINAC_${CONTAINER_UC}_H__
+
+#include <${STLHEADER}>
+
+// CINT needs <algorithm> to work properly with <vector> and <list>
+#include <algorithm>
+
+#include "basic.h"
+#include "ex.h"
+
+namespace GiNaC {
+
+
+typedef std::${STLHEADER}<ex> ${STLT};
+
+class ${CONTAINER} : public basic
+{
+ GINAC_DECLARE_REGISTERED_CLASS(${CONTAINER}, basic)
+
+public:
+ ${CONTAINER}(${STLT} const & s, bool discardable = false);
+ ${CONTAINER}(${STLT} * vp); // vp will be deleted
+${constructors_interface}
+
+public:
+ void print(const print_context & c, unsigned level = 0) const;
+ unsigned precedence(void) const {return 10;}
+ bool info(unsigned inf) const;
+ unsigned nops() const;
+ ex & let_op(int i);
+ ex map(map_function & f) const;
+ ex eval(int level=0) const;
+ ex subs(const lst & ls, const lst & lr, bool no_pattern = false) const;
+protected:
+ bool is_equal_same_type(const basic & other) const;
+
+ // new virtual functions which can be overridden by derived classes
+public:
+ virtual ${CONTAINER} & append(const ex & b);
+ virtual ${CONTAINER} & remove_last(void);
+${PREPEND_INTERFACE}
+${SORT_INTERFACE}
+protected:
+ virtual void printseq(const print_context & c, char openbracket, char delim,
+ char closebracket, unsigned this_precedence,
+ unsigned upper_precedence = 0) const;
+ virtual ex this${CONTAINER}(${STLT} const & v) const;
+ virtual ex this${CONTAINER}(${STLT} * vp) const;
+
+protected:
+ bool is_canonical() const;
+ ${STLT} evalchildren(int level) const;
+ ${STLT} * subschildren(const lst & ls, const lst & lr, bool no_pattern = false) const;
+
+protected:
+ ${STLT} seq;
+};
+
+// utility functions
+
+/** Specialization of is_exactly_a<${CONTAINER}>(obj) for ${CONTAINER} objects. */
+template<> inline bool is_exactly_a<${CONTAINER}>(const basic & obj)
+{
+ return obj.tinfo()==TINFO_${CONTAINER};
+}
+
+} // namespace GiNaC
+
+#endif // ndef __GINAC_${CONTAINER_UC}_H__
+
+END_OF_INTERFACE
+
+$implementation=<<END_OF_IMPLEMENTATION;
+/** \@file ${CONTAINER}.cpp
+ *
+ * Implementation of GiNaC's ${CONTAINER}. */
+
+/*
+ * This file was generated automatically by container.pl.
+ * Please do not modify it directly, edit the perl script instead!
+ * container.pl options: \$CONTAINER=${CONTAINER}
+ * \$STLHEADER=${STLHEADER}
+ * \$reserve=${reserve}
+ * \$prepend=${prepend}
+ * \$let_op=${let_op}
+ * \$open_bracket=${open_bracket}
+ * \$close_bracket=${close_bracket}
+ * \$maxargs=${maxargs}
+ *
+ * GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <iostream>
+#include <stdexcept>
+
+#include "${CONTAINER}.h"
+#include "ex.h"
+#include "print.h"
+#include "archive.h"
+
+namespace GiNaC {
+
+GINAC_IMPLEMENT_REGISTERED_CLASS(${CONTAINER}, basic)
+
+${RESERVE_IMPLEMENTATION}
+
+//////////
+// default ctor, dtor, copy ctor, assignment operator and helpers
+//////////
+
+// public
+
+${CONTAINER}::${CONTAINER}() : basic(TINFO_${CONTAINER}) {}
+
+// protected
+
+void ${CONTAINER}::copy(${CONTAINER} const & other)
+{
+ inherited::copy(other);
+ seq=other.seq;
+}
+
+void ${CONTAINER}::destroy(bool call_parent)
+{
+ seq.clear();
+ if (call_parent) inherited::destroy(call_parent);
+}
+
+//////////
+// other ctors
+//////////
+
+// public
+
+${CONTAINER}::${CONTAINER}(${STLT} const & s, bool discardable) : basic(TINFO_${CONTAINER})
+{
+ if (discardable) {
+ seq.swap(const_cast<${STLT} &>(s));
+ } else {
+ seq=s;
+ }
+}
+
+${CONTAINER}::${CONTAINER}(${STLT} * vp) : basic(TINFO_${CONTAINER})
+{
+ if (vp == 0) {
+ // lst(0) ends up here
+ seq.push_back(0);
+ } else {
+ seq.swap(*vp);
+ delete vp;
+ }
+}
+
+${constructors_implementation}
+
+//////////
+// archiving
+//////////
+
+/** Construct object from archive_node. */
+${CONTAINER}::${CONTAINER}(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst)
+{
+ for (unsigned int i=0; true; i++) {
+ ex e;
+ if (n.find_ex("seq", e, sym_lst, i))
+ seq.push_back(e);
+ else
+ break;
+ }
+}
+
+/** Unarchive the object. */
+ex ${CONTAINER}::unarchive(const archive_node &n, const lst &sym_lst)
+{
+ return (new ${CONTAINER}(n, sym_lst))->setflag(status_flags::dynallocated);
+}
+
+/** Archive the object. */
+void ${CONTAINER}::archive(archive_node &n) const
+{
+ inherited::archive(n);
+ ${STLT}::const_iterator i = seq.begin(), end = seq.end();
+ while (i != end) {
+ n.add_ex("seq", *i);
+ ++i;
+ }
+}
+
+//////////
+// functions overriding virtual functions from base classes
+//////////
+
+// public
+
+void ${CONTAINER}::print(const print_context & c, unsigned level) const
+{
+ if (is_a<print_tree>(c)) {
+
+ c.s << std::string(level, ' ') << class_name()
+ << std::hex << ", hash=0x" << hashvalue << ", flags=0x" << flags << std::dec
+ << ", nops=" << nops()
+ << std::endl;
+ unsigned delta_indent = static_cast<const print_tree &>(c).delta_indent;
+ ${STLT}::const_iterator i = seq.begin(), end = seq.end();
+ while (i != end) {
+ i->print(c, level + delta_indent);
+ ++i;
+ }
+ c.s << std::string(level + delta_indent,' ') << "=====" << std::endl;
+ } else if (is_a<print_python>(c)) {
+ printseq(c, '[', ',', ']', precedence(), precedence()+1);
+ } else if (is_a<print_python_repr>(c)) {
+ c.s << class_name ();
+ printseq(c, '(', ',', ')', precedence(), precedence()+1);
+ } else {
+ // always print brackets around seq, ignore upper_precedence
+ printseq(c, '${open_bracket}', ',', '${close_bracket}', precedence(), precedence()+1);
+ }
+}
+
+// ${CONTAINER}::info() will be implemented by user elsewhere";
+
+unsigned ${CONTAINER}::nops() const
+{
+ return seq.size();
+}
+
+${LET_OP_IMPLEMENTATION}
+
+ex ${CONTAINER}::map(map_function & f) const
+{
+ // This implementation is here because basic::map() uses let_op()
+ // which is not defined for all containers
+ ${STLT} s;
+ RESERVE(s,seq.size());
+ ${STLT}::const_iterator i = seq.begin(), end = seq.end();
+ while (i != end) {
+ s.push_back(f(*i));
+ ++i;
+ }
+
+ return this${CONTAINER}(s);
+}
+
+ex ${CONTAINER}::eval(int level) const
+{
+ if (level==1) {
+ return this->hold();
+ }
+ return this${CONTAINER}(evalchildren(level));
+}
+
+ex ${CONTAINER}::subs(const lst & ls, const lst & lr, bool no_pattern) const
+{
+ ${STLT} *vp = subschildren(ls, lr, no_pattern);
+ if (vp)
+ return ex_to<basic>(this${CONTAINER}(vp)).basic::subs(ls, lr, no_pattern);
+ else
+ return basic::subs(ls, lr, no_pattern);
+}
+
+// protected
+
+int ${CONTAINER}::compare_same_type(const basic & other) const
+{
+ GINAC_ASSERT(is_a<${CONTAINER}>(other));
+ ${CONTAINER} const & o = static_cast<const ${CONTAINER} &>(other);
+
+ ${STLT}::const_iterator it1 = seq.begin(), it1end = seq.end(),
+ it2 = o.seq.begin(), it2end = o.seq.end();
+
+ while (it1 != it1end && it2 != it2end) {
+ int cmpval = it1->compare(*it2);
+ if (cmpval)
+ return cmpval;
+ ++it1; ++it2;
+ }
+
+ return (it1 == it1end) ? (it2 == it2end ? 0 : -1) : 1;
+}
+
+bool ${CONTAINER}::is_equal_same_type(const basic & other) const
+{
+ GINAC_ASSERT(is_a<${CONTAINER}>(other));
+ ${CONTAINER} const &o = static_cast<const ${CONTAINER} &>(other);
+
+ if (seq.size() != o.seq.size())
+ return false;
+
+ ${STLT}::const_iterator it1 = seq.begin(), it1end = seq.end(),
+ it2 = o.seq.begin();
+
+ while (it1 != it1end) {
+ if (!it1->is_equal(*it2))
+ return false;
+ ++it1; ++it2;
+ }
+
+ return true;
+}
+
+//////////
+// new virtual functions which can be overridden by derived classes
+//////////
+
+// public
+
+${CONTAINER} & ${CONTAINER}::append(const ex & b)
+{
+ ensure_if_modifiable();
+ seq.push_back(b);
+ return *this;
+}
+
+${CONTAINER} & ${CONTAINER}::remove_last(void)
+{
+ ensure_if_modifiable();
+ seq.pop_back();
+ return *this;
+}
+
+${PREPEND_IMPLEMENTATION}
+
+${SORT_IMPLEMENTATION}
+
+// protected
+
+void ${CONTAINER}::printseq(const print_context & c, char openbracket, char delim,
+ char closebracket, unsigned this_precedence,
+ unsigned upper_precedence) const
+{
+ if (this_precedence <= upper_precedence)
+ c.s << openbracket;
+
+ if (!seq.empty()) {
+ ${STLT}::const_iterator it = seq.begin(), itend = seq.end();
+ --itend;
+ while (it != itend) {
+ it->print(c, this_precedence);
+ c.s << delim;
+ ++it;
+ }
+ it->print(c, this_precedence);
+ }
+
+ if (this_precedence <= upper_precedence)
+ c.s << closebracket;
+}
+
+ex ${CONTAINER}::this${CONTAINER}(${STLT} const & v) const
+{
+ return ${CONTAINER}(v);
+}
+
+ex ${CONTAINER}::this${CONTAINER}(${STLT} * vp) const
+{
+ return ${CONTAINER}(vp);
+}
+
+//////////
+// non-virtual functions in this class
+//////////
+
+// public
+
+// none
+
+// protected
+
+bool ${CONTAINER}::is_canonical() const
+{
+ if (seq.size()<=1) { return 1; }
+
+ ${STLT}::const_iterator it = seq.begin(), itend = seq.end();
+ ${STLT}::const_iterator it_last=it;
+ for (++it; it!=itend; it_last=it, ++it) {
+ if (it_last->compare(*it)>0) {
+ if (it_last->compare(*it)>0) {
+ std::cout << *it_last << ">" << *it << "\\n";
+ return 0;
+ }
+ }
+ }
+ return 1;
+}
+
+
+${STLT} ${CONTAINER}::evalchildren(int level) const
+{
+ ${STLT} s;
+ RESERVE(s,seq.size());
+
+ if (level==1) {
+ return seq;
+ }
+ if (level == -max_recursion_level) {
+ throw(std::runtime_error("max recursion level reached"));
+ }
+ --level;
+ ${STLT}::const_iterator it = seq.begin(), itend = seq.end();
+ while (it != itend) {
+ s.push_back(it->eval(level));
+ ++it;
+ }
+ return s;
+}
+
+${STLT} * ${CONTAINER}::subschildren(const lst & ls, const lst & lr, bool no_pattern) const
+{
+ // returns a NULL pointer if nothing had to be substituted
+ // returns a pointer to a newly created epvector otherwise
+ // (which has to be deleted somewhere else)
+
+ ${STLT}::const_iterator cit = seq.begin(), end = seq.end();
+ while (cit != end) {
+ const ex & subsed_ex = cit->subs(ls, lr, no_pattern);
+ if (!are_ex_trivially_equal(*cit, subsed_ex)) {
+
+ // something changed, copy seq, subs and return it
+ ${STLT} *s=new ${STLT};
+ RESERVE(*s, seq.size());
+
+ // copy parts of seq which are known not to have changed
+ ${STLT}::const_iterator cit2 = seq.begin();
+ while (cit2 != cit) {
+ s->push_back(*cit2);
+ ++cit2;
+ }
+
+ // copy first changed element
+ s->push_back(subsed_ex);
+ ++cit2;
+
+ // copy rest
+ while (cit2 != end) {
+ s->push_back(cit2->subs(ls, lr, no_pattern));
+ ++cit2;
+ }
+ return s;
+ }
+ ++cit;
+ }
+
+ return 0; // nothing has changed
+}
+
+} // namespace GiNaC
+
+END_OF_IMPLEMENTATION
+
+print "Creating interface file ${CONTAINER}.h...";
+open OUT,">${CONTAINER}.h" or die "cannot open ${CONTAINER}.h";
+print OUT $interface;
+close OUT;
+print "ok.\n";
+
+print "Creating implementation file ${CONTAINER}.cpp...";
+open OUT,">${CONTAINER}.cpp" or die "cannot open ${CONTAINER}.cpp";
+print OUT $implementation;
+close OUT;
+print "ok.\n";
+
+print "done.\n";