* This file must be processed with yacc/bison. */
/*
- * GiNaC Copyright (C) 1999-2007 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2008 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
#define YYERROR_VERBOSE 1
-#ifdef REALLY_HAVE_LIBREADLINE
+#ifdef HAVE_LIBREADLINE
// 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
-#if (GINAC_RL_VERSION_MAJOR >= 5)
+#if (RL_VERSION_MAJOR >= 5)
#define GINAC_RL_COMPLETER_CAST(a) const_cast<char *>((a))
#else
#define GINAC_RL_COMPLETER_CAST(a) (a)
#endif
-#endif // REALLY_HAVE_LIBREADLINE
+#endif // HAVE_LIBREADLINE
// Expression stack for %, %% and %%%
static void push(const ex &e);
static ex exstack[3];
+// Assigned symbols
+static exmap assigned_symbol_table;
// Start and end time for the time() function
#ifdef HAVE_RUSAGE
;
exp : T_NUMBER {$$ = $1;}
- | T_SYMBOL {$$ = $1.eval();}
+ | T_SYMBOL {
+ exmap::const_iterator i = assigned_symbol_table.find($1);
+ if (i == assigned_symbol_table.end())
+ $$ = $1;
+ else
+ $$ = i->second.eval();
+ }
| '\'' T_SYMBOL '\'' {$$ = $2;}
| T_LITERAL {$$ = $1;}
| T_DIGITS {$$ = $1;}
}
}
| T_DIGITS '=' T_NUMBER {$$ = $3; Digits = ex_to<numeric>($3).to_int();}
- | T_SYMBOL '=' exp {$$ = $3; const_cast<symbol&>(ex_to<symbol>($1)).assign($3);}
+ | T_SYMBOL '=' exp {$$ = $3; assigned_symbol_table[$1] = $3; }
| exp T_EQUAL exp {$$ = $1 == $3;}
| exp T_NOTEQ exp {$$ = $1 != $3;}
| exp '<' exp {$$ = $1 < $3;}
static ex f_evalm(const exprseq &e) {return e[0].evalm();}
static ex f_eval_integ(const exprseq &e) {return e[0].eval_integ();}
static ex f_expand(const exprseq &e) {return e[0].expand();}
+static ex f_factor(const exprseq &e) {return factor(e[0]);}
static ex f_gcd(const exprseq &e) {return gcd(e[0], e[1]);}
static ex f_has(const exprseq &e) {return e[0].has(e[1]) ? ex(1) : ex(0);}
static ex f_lcm(const exprseq &e) {return lcm(e[0], e[1]);}
static ex f_unassign(const exprseq &e)
{
CHECK_ARG(0, symbol, unassign);
- const_cast<symbol&>(ex_to<symbol>(e[0])).unassign();
+ exmap::iterator i = assigned_symbol_table.find(e[0]);
+ if (i != assigned_symbol_table.end())
+ assigned_symbol_table.erase(i);
return e[0];
}
{"evalm", f_evalm, 1},
{"eval_integ", f_eval_integ, 1},
{"expand", f_expand, 1},
+ {"factor", f_factor, 1},
{"find", f_find, 2},
{"fsolve", f_fsolve, 4},
{"gcd", f_gcd, 2},
return NULL;
}
-#ifdef REALLY_HAVE_LIBREADLINE
+#ifdef HAVE_LIBREADLINE
static char **fcn_completion(const char *text, int start, int end)
{
if (rl_line_buffer[0] == '!') {
rl_completion_append_character = orig_completion_append_character;
rl_basic_word_break_characters = orig_basic_word_break_characters;
rl_completer_word_break_characters = GINAC_RL_COMPLETER_CAST(rl_basic_word_break_characters);
-#if (GINAC_RL_VERSION_MAJOR < 4) || (GINAC_RL_VERSION_MAJOR == 4 && GINAC_RL_VERSION_MINOR < 2)
- return completion_matches(const_cast<char *>(text), (CPFunction *)filename_completion_function);
-#else
return rl_completion_matches(text, rl_filename_completion_function);
-#endif
} else {
// Otherwise, complete function names
rl_completion_append_character = '(';
rl_basic_word_break_characters = " \t\n\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~";
rl_completer_word_break_characters = GINAC_RL_COMPLETER_CAST(rl_basic_word_break_characters);
-#if (GINAC_RL_VERSION_MAJOR < 4) || (GINAC_RL_VERSION_MAJOR == 4 && GINAC_RL_VERSION_MINOR < 2)
- return completion_matches(const_cast<char *>(text), (CPFunction *)fcn_generator);
-#else
return rl_completion_matches(text, fcn_generator);
-#endif
}
}
-#endif // REALLY_HAVE_LIBREADLINE
+#endif // HAVE_LIBREADLINE
+
+static void ginsh_readline_init(char* name)
+{
+#ifdef HAVE_LIBREADLINE
+ // Init readline completer
+ rl_readline_name = name;
+ rl_attempted_completion_function = fcn_completion;
+ orig_completion_append_character = rl_completion_append_character;
+ orig_basic_word_break_characters = rl_basic_word_break_characters;
+#endif // HAVE_LIBREADLINE
+}
void greeting(void)
{
cout << "ginsh - GiNaC Interactive Shell (" << PACKAGE << " V" << VERSION << ")" << endl;
- cout << " __, _______ Copyright (C) 1999-2007 Johannes Gutenberg University Mainz,\n"
+ cout << " __, _______ Copyright (C) 1999-2008 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;
// Print banner in interactive mode
if (isatty(0))
greeting();
+ assigned_symbol_table = exmap();
// Init function table
insert_fcns(builtin_fcns);
insert_help("print_latex", "print_latex(expression) - prints a LaTeX representation of the given expression");
insert_help("print_csrc", "print_csrc(expression) - prints a C source code representation of the given expression");
-#ifdef REALLY_HAVE_LIBREADLINE
- // Init readline completer
- rl_readline_name = argv[0];
-#if (GINAC_RL_VERSION_MAJOR < 4) || (GINAC_RL_VERSION_MAJOR == 4 && GINAC_RL_VERSION_MINOR < 2)
- rl_attempted_completion_function = (CPPFunction *)fcn_completion;
-#else
- rl_attempted_completion_function = fcn_completion;
-#endif
- orig_completion_append_character = rl_completion_append_character;
- orig_basic_word_break_characters = rl_basic_word_break_characters;
-#endif
+ ginsh_readline_init(argv[0]);
// Init input file list, open first file
num_files = argc - 1;
git://www.ginac.de / ginac.git / blobdiff