/** @file ginsh_parser.yy
*
* Input grammar definition for ginsh.
- * This file must be processed with yacc/bison.
- *
+ * This file must be processed with yacc/bison. */
+
+/*
* GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
*
* This program is free software; you can redistribute it and/or modify
#include "ginsh.h"
+#define YYERROR_VERBOSE 1
+
// Original readline settings
static int orig_completion_append_character;
static char *orig_basic_word_break_characters;
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
%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 '='
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_TIME {print_help("time");}
| '?' '?' {print_help_topics();}
| T_QUIT {YYACCEPT;}
| T_WARRANTY {
| 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 {$$ = lst_to_matrix($2);}
;
exprseq : exp {$$ = exprseq($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)
{
}
-/*
- * 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
*/
/*
* Main program
*/
+
int main(int argc, char **argv)
{
// Print banner in interactive mode