added description of wildcards
[ginac.git] / ginsh / ginsh_parser.yy
index fdb9bffa634fd1c6cad39ae3b12eae061473b9e3..48d839a0490edc334f3b10bbcd29a18ba08e9927 100644 (file)
@@ -1,9 +1,10 @@
 /** @file ginsh_parser.yy
  *
  *  Input grammar definition for ginsh.
- *  This file must be processed with yacc/bison.
- *
- *  GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ *  This file must be processed with yacc/bison. */
+
+/*
+ *  GiNaC Copyright (C) 1999-2001 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
 
 #include "ginsh.h"
 
+#define YYERROR_VERBOSE 1
+
 // Original readline settings
 static int orig_completion_append_character;
+#if (GINAC_RL_VERSION_MAJOR < 4) || (GINAC_RL_VERSION_MAJOR == 4 && GINAC_RL_VERSION_MINOR < 2)
 static char *orig_basic_word_break_characters;
+#else
+static const char *orig_basic_word_break_characters;
+#endif
 
 // Expression stack for ", "" and """
 static void push(const ex &e);
@@ -77,8 +84,6 @@ static help_tab help;
 
 static void print_help(const string &topic);
 static void print_help_topics(void);
-
-static ex lst2matrix(const ex &l);
 %}
 
 /* Tokens (T_LITERAL means a literal value returned by the parser, but not
@@ -86,7 +91,7 @@ static ex lst2matrix(const ex &l);
 %token T_NUMBER T_SYMBOL T_LITERAL T_DIGITS T_QUOTE T_QUOTE2 T_QUOTE3
 %token T_EQUAL T_NOTEQ T_LESSEQ T_GREATEREQ T_MATRIX_BEGIN T_MATRIX_END
 
-%token T_QUIT T_WARRANTY T_PRINT T_READ T_WRITE T_TIME T_XYZZY T_INVENTORY T_LOOK T_SCORE
+%token T_QUIT T_WARRANTY T_PRINT T_IPRINT T_TIME T_XYZZY T_INVENTORY T_LOOK T_SCORE
 
 /* Operator precedence and associativity */
 %right '='
@@ -124,19 +129,34 @@ line      : ';'
                try {
                        push($1);
                } catch (exception &e) {
-                       cerr << e.what() << endl;
+                       std::cerr << e.what() << endl;
                        YYERROR;
                }
        }
        | T_PRINT '(' exp ')' ';' {
                try {
-                       $3.printtree(cout);
+                       $3.print(print_tree(std::cout));
+               } catch (exception &e) {
+                       std::cerr << e.what() << endl;
+                       YYERROR;
+               }
+       }
+       | T_IPRINT '(' exp ')' ';' {
+               try {
+                       ex e = $3;
+                       if (!e.info(info_flags::integer))
+                               throw (std::invalid_argument("argument to iprint() must be an integer"));
+                       long i = ex_to_numeric(e).to_long();
+                       cout << i << endl;
+                       cout << "#o" << oct << i << endl;
+                       cout << "#x" << hex << i << dec << endl;
                } catch (exception &e) {
                        cerr << e.what() << endl;
                        YYERROR;
                }
        }
-       | '?' T_SYMBOL          {print_help(ex_to_symbol($2).getname());}
+       | '?' T_SYMBOL          {print_help(ex_to_symbol($2).get_name());}
+       | '?' T_TIME            {print_help("time");}
        | '?' '?'               {print_help_topics();}
        | T_QUIT                {YYACCEPT;}
        | T_WARRANTY {
@@ -151,7 +171,6 @@ line        : ';'
                cout << "You should have received a copy of the GNU General Public License along with\n";
                cout << "this program. If not, write to the Free Software Foundation, 675 Mass Ave,\n";
                cout << "Cambridge, MA 02139, USA.\n";
-
        }
        | T_XYZZY               {cout << "Nothing happens.\n";}
        | T_INVENTORY           {cout << "You're not carrying anything.\n";}
@@ -161,6 +180,13 @@ line       : ';'
                cout << (syms.size() > 350 ? 350 : syms.size());
                cout << " out of a possible 350.\n";
        }
+       | T_TIME {getrusage(RUSAGE_SELF, &start_time);} '(' exp ')' {
+               getrusage(RUSAGE_SELF, &end_time);
+               cout << (end_time.ru_utime.tv_sec - start_time.ru_utime.tv_sec) +
+                       (end_time.ru_stime.tv_sec - start_time.ru_stime.tv_sec) +
+                        double(end_time.ru_utime.tv_usec - start_time.ru_utime.tv_usec) / 1e6 +
+                        double(end_time.ru_stime.tv_usec - start_time.ru_stime.tv_usec) / 1e6 << 's' << endl;
+       }
        | error ';'             {yyclearin; yyerrok;}
        | error ':'             {yyclearin; yyerrok;}
        ;
@@ -173,13 +199,6 @@ exp        : T_NUMBER              {$$ = $1;}
        | T_QUOTE               {$$ = exstack[0];}
        | T_QUOTE2              {$$ = exstack[1];}
        | T_QUOTE3              {$$ = exstack[2];}
-       | T_TIME {getrusage(RUSAGE_SELF, &start_time);} '(' exp ')' {
-               getrusage(RUSAGE_SELF, &end_time);
-               $$ = (end_time.ru_utime.tv_sec - start_time.ru_utime.tv_sec) +
-                    (end_time.ru_stime.tv_sec - start_time.ru_stime.tv_sec) +
-                    double(end_time.ru_utime.tv_usec - start_time.ru_utime.tv_usec) / 1e6 +
-                    double(end_time.ru_stime.tv_usec - start_time.ru_stime.tv_usec) / 1e6;
-       }
        | T_SYMBOL '(' exprseq ')' {
                fcn_tab::const_iterator i = find_function($1, $3.nops());
                if (i->second.is_ginac) {
@@ -200,14 +219,13 @@ exp       : T_NUMBER              {$$ = $1;}
        | exp '-' exp           {$$ = $1 - $3;}
        | exp '*' exp           {$$ = $1 * $3;}
        | exp '/' exp           {$$ = $1 / $3;}
-       | exp '%' exp           {$$ = $1 % $3;}
        | '-' exp %prec NEG     {$$ = -$2;}
        | '+' exp %prec NEG     {$$ = $2;}
        | exp '^' exp           {$$ = power($1, $3);}
        | exp '!'               {$$ = factorial($1);}
        | '(' exp ')'           {$$ = $2;}
        | '[' list_or_empty ']' {$$ = $2;}
-       | T_MATRIX_BEGIN matrix T_MATRIX_END    {$$ = lst2matrix($2);}
+       | T_MATRIX_BEGIN matrix T_MATRIX_END    {$$ = lst_to_matrix(ex_to_lst($2));}
        ;
 
 exprseq        : exp                   {$$ = exprseq($1);}
@@ -270,7 +288,7 @@ static ex f_pow(const exprseq &e) {return pow(e[0], e[1]);}
 static ex f_sqrt(const exprseq &e) {return sqrt(e[0]);}
 static ex f_subs2(const exprseq &e) {return e[0].subs(e[1]);}
 
-#define CHECK_ARG(num, type, fcn) if (!is_ex_of_type(e[num], type)) throw(std::invalid_argument("argument " #num " to " #fcn " must be a " #type))
+#define CHECK_ARG(num, type, fcn) if (!is_ex_of_type(e[num], type)) throw(std::invalid_argument("argument " #num " to " #fcn "() must be a " #type))
 
 static ex f_charpoly(const exprseq &e)
 {
@@ -281,15 +299,18 @@ static ex f_charpoly(const exprseq &e)
 
 static ex f_coeff(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, coeff);
        CHECK_ARG(2, numeric, coeff);
-       return e[0].coeff(ex_to_symbol(e[1]), ex_to_numeric(e[2]).to_int());
+       return e[0].coeff(e[1], ex_to_numeric(e[2]).to_int());
 }
 
 static ex f_collect(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, collect);
-       return e[0].collect(ex_to_symbol(e[1]));
+       return e[0].collect(e[1]);
+}
+
+static ex f_collect_distributed(const exprseq &e)
+{
+       return e[0].collect(e[1], true);
 }
 
 static ex f_content(const exprseq &e)
@@ -300,8 +321,7 @@ static ex f_content(const exprseq &e)
 
 static ex f_degree(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, degree);
-       return e[0].degree(ex_to_symbol(e[1]));
+       return e[0].degree(e[1]);
 }
 
 static ex f_determinant(const exprseq &e)
@@ -338,7 +358,7 @@ static ex f_divide(const exprseq &e)
        if (divide(e[0], e[1], q))
                return q;
        else
-               return *new fail();
+               return fail();
 }
 
 static ex f_eval2(const exprseq &e)
@@ -372,14 +392,21 @@ static ex f_is(const exprseq &e)
 
 static ex f_lcoeff(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, lcoeff);
-       return e[0].lcoeff(ex_to_symbol(e[1]));
+       return e[0].lcoeff(e[1]);
 }
 
 static ex f_ldegree(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, ldegree);
-       return e[0].ldegree(ex_to_symbol(e[1]));
+       return e[0].ldegree(e[1]);
+}
+
+static ex f_match(const exprseq &e)
+{
+       lst repl_lst;
+       if (e[0].match(e[1], repl_lst))
+               return repl_lst;
+       else
+               return fail();
 }
 
 static ex f_normal2(const exprseq &e)
@@ -421,29 +448,21 @@ static ex f_rem(const exprseq &e)
        return rem(e[0], e[1], ex_to_symbol(e[2]));
 }
 
-static ex f_series2(const exprseq &e)
+static ex f_series(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, series);
-       return e[0].series(ex_to_symbol(e[1]), ex(0));
+       CHECK_ARG(2, numeric, series);
+       return e[0].series(e[1], ex_to_numeric(e[2]).to_int());
 }
 
-static ex f_series3(const exprseq &e)
+static ex f_sqrfree1(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, series);
-       return e[0].series(ex_to_symbol(e[1]), e[2]);
+       return sqrfree(e[0]);
 }
 
-static ex f_series4(const exprseq &e)
+static ex f_sqrfree2(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, series);
-       CHECK_ARG(3, numeric, series);
-       return e[0].series(ex_to_symbol(e[1]), e[2], ex_to_numeric(e[3]).to_int());
-}
-
-static ex f_sqrfree(const exprseq &e)
-{
-       CHECK_ARG(1, symbol, sqrfree);
-       return sqrfree(e[0], ex_to_symbol(e[1]));
+       CHECK_ARG(1, lst, sqrfree);
+       return sqrfree(e[0], ex_to_lst(e[1]));
 }
 
 static ex f_subs3(const exprseq &e)
@@ -455,8 +474,7 @@ static ex f_subs3(const exprseq &e)
 
 static ex f_tcoeff(const exprseq &e)
 {
-       CHECK_ARG(1, symbol, tcoeff);
-       return e[0].tcoeff(ex_to_symbol(e[1]));
+       return e[0].tcoeff(e[1]);
 }
 
 static ex f_trace(const exprseq &e)
@@ -499,6 +517,7 @@ static const fcn_init builtin_fcns[] = {
        {"charpoly", fcn_desc(f_charpoly, 2)},
        {"coeff", fcn_desc(f_coeff, 3)},
        {"collect", fcn_desc(f_collect, 2)},
+       {"collect_distributed", fcn_desc(f_collect_distributed, 2)},
        {"content", fcn_desc(f_content, 2)},
        {"degree", fcn_desc(f_degree, 2)},
        {"denom", fcn_desc(f_denom, 1)},
@@ -520,6 +539,7 @@ static const fcn_init builtin_fcns[] = {
        {"lcoeff", fcn_desc(f_lcoeff, 2)},
        {"ldegree", fcn_desc(f_ldegree, 2)},
        {"lsolve", fcn_desc(f_lsolve, 2)},
+       {"match", fcn_desc(f_match, 2)},
        {"nops", fcn_desc(f_nops, 1)},
        {"normal", fcn_desc(f_normal1, 1)},
        {"normal", fcn_desc(f_normal2, 2)},
@@ -530,10 +550,9 @@ static const fcn_init builtin_fcns[] = {
        {"primpart", fcn_desc(f_primpart, 2)},
        {"quo", fcn_desc(f_quo, 3)},
        {"rem", fcn_desc(f_rem, 3)},
-       {"series", fcn_desc(f_series2, 2)},
-       {"series", fcn_desc(f_series3, 3)},
-       {"series", fcn_desc(f_series4, 4)},
-       {"sqrfree", fcn_desc(f_sqrfree, 2)},
+       {"series", fcn_desc(f_series, 3)},
+       {"sqrfree", fcn_desc(f_sqrfree1, 1)},
+       {"sqrfree", fcn_desc(f_sqrfree2, 2)},
        {"sqrt", fcn_desc(f_sqrt, 1)},
        {"subs", fcn_desc(f_subs2, 2)},
        {"subs", fcn_desc(f_subs3, 3)},
@@ -566,11 +585,7 @@ static ex f_ginac_function(const exprseq &es, int serial)
 }
 
 // All registered GiNaC functions
-#ifndef NO_NAMESPACE_GINAC
 void GiNaC::ginsh_get_ginac_functions(void)
-#else // ndef NO_NAMESPACE_GINAC
-void ginsh_get_ginac_functions(void)
-#endif // ndef NO_NAMESPACE_GINAC
 {
        vector<function_options>::const_iterator i = function::registered_functions().begin(), end = function::registered_functions().end();
        unsigned serial = 0;
@@ -588,7 +603,7 @@ void ginsh_get_ginac_functions(void)
 
 static fcn_tab::const_iterator find_function(const ex &sym, int req_params)
 {
-       const string &name = ex_to_symbol(sym).getname();
+       const string &name = ex_to_symbol(sym).get_name();
        typedef fcn_tab::const_iterator I;
        pair<I, I> b = fcns.equal_range(name);
        if (b.first == b.second)
@@ -669,33 +684,6 @@ static void print_help_topics(void)
 }
 
 
-/*
- *  Convert list of lists to matrix
- */
-
-static ex lst2matrix(const ex &l)
-{
-       if (!is_ex_of_type(l, lst))
-               throw(std::logic_error("internal error: argument to lst2matrix() is not a list"));
-
-       // Find number of rows and columns
-       unsigned rows = l.nops(), cols = 0, i, j;
-       for (i=0; i<rows; i++)
-               if (l.op(i).nops() > cols)
-                       cols = l.op(i).nops();
-
-       // Allocate and fill matrix
-       matrix &m = *new matrix(rows, cols);
-       for (i=0; i<rows; i++)
-               for (j=0; j<cols; j++)
-                       if (l.op(i).nops() > j)
-                               m.set(i, j, l.op(i).op(j));
-                       else
-                               m.set(i, j, ex(0));
-       return m;
-}
-
-
 /*
  *  Function name completion functions for readline
  */
@@ -727,19 +715,29 @@ static char **fcn_completion(char *text, int start, int end)
                // For shell commands, revert back to filename completion
                rl_completion_append_character = orig_completion_append_character;
                rl_basic_word_break_characters = orig_basic_word_break_characters;
+               rl_completer_word_break_characters = rl_basic_word_break_characters;
+#if (GINAC_RL_VERSION_MAJOR < 4) || (GINAC_RL_VERSION_MAJOR == 4 && GINAC_RL_VERSION_MINOR < 2)
                return completion_matches(text, (CPFunction *)filename_completion_function);
+#else
+               return rl_completion_matches(text, (CPFunction *)rl_filename_completion_function);
+#endif
        } else {
                // Otherwise, complete function names
                rl_completion_append_character = '(';
                rl_basic_word_break_characters = " \t\n\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~";
+               rl_completer_word_break_characters = rl_basic_word_break_characters;
+#if (GINAC_RL_VERSION_MAJOR < 4) || (GINAC_RL_VERSION_MAJOR == 4 && GINAC_RL_VERSION_MINOR < 2)
                return completion_matches(text, (CPFunction *)fcn_generator);
+#else
+               return rl_completion_matches(text, (CPFunction *)fcn_generator);
+#endif
        }
 }
 
 void greeting(void)
 {
     cout << "ginsh - GiNaC Interactive Shell (" << PACKAGE << " V" << VERSION << ")" << endl;
-    cout << "  __,  _______  Copyright (C) 1999-2000 Johannes Gutenberg University Mainz,\n"
+    cout << "  __,  _______  Copyright (C) 1999-2001 Johannes Gutenberg University Mainz,\n"
          << " (__) *       | Germany.  This is free software with ABSOLUTELY NO WARRANTY.\n"
          << "  ._) i N a C | You are welcome to redistribute it under certain conditions.\n"
          << "<-------------' For details type `warranty;'.\n" << endl;
@@ -749,6 +747,7 @@ void greeting(void)
 /*
  *  Main program
  */
+
 int main(int argc, char **argv)
 {
        // Print banner in interactive mode
@@ -774,13 +773,14 @@ int main(int argc, char **argv)
        insert_fcn_help("atan", "inverse tangent function");
        insert_fcn_help("atan2", "inverse tangent function with two arguments");
        insert_fcn_help("atanh", "inverse hyperbolic tangent function");
-       insert_fcn_help("beta", "beta function");
+       insert_fcn_help("beta", "Beta function");
        insert_fcn_help("binomial", "binomial function");
        insert_fcn_help("cos", "cosine function");
        insert_fcn_help("cosh", "hyperbolic cosine function");
        insert_fcn_help("exp", "exponential function");
        insert_fcn_help("factorial", "factorial function");
-       insert_fcn_help("gamma", "gamma function");
+       insert_fcn_help("lgamma", "natural logarithm of Gamma function");
+       insert_fcn_help("tgamma", "Gamma function");
        insert_fcn_help("log", "natural logarithm");
        insert_fcn_help("psi", "psi function\npsi(x) is the digamma function, psi(n,x) the nth polygamma function");
        insert_fcn_help("sin", "sine function");