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cdesktopenv/cde/programs/dtcalc/calctool.c

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/*
* CDE - Common Desktop Environment
*
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*/
/* $XConsortium: calctool.c /main/9 1996/09/25 11:28:16 rswiston $ */
/* *
* calctool.c *
* Contains the none user interface portion of the Desktop *
* Calculator. *
* *
* (c) Copyright 1993, 1994 Hewlett-Packard Company *
* (c) Copyright 1993, 1994 International Business Machines Corp. *
* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
* (c) Copyright 1993, 1994 Novell, Inc. *
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/param.h>
#include <pwd.h>
#include <math.h>
#include "patchlevel.h"
#include "calctool.h"
#include "ds_common.h"
#ifdef sun
/* Copied from math.h */
struct exception {
int type;
char *name;
double arg1;
double arg2;
double retval;
};
#endif
time_t time() ;
double max_fix[4] = {
6.871947674e+10, 3.245185537e+32,
1.000000000e+36, 2.230074520e+43
} ;
double min_fix0[4] = {
2.500000000e-1, 3.750000000e-1,
1.000000000e-1, 4.375000000e-1
} ;
double min_fix1[4] = {
1.250000000e-1, 4.687500000e-2,
1.000000000e-2, 2.734375000e-2
} ;
double min_fix2[4] = {
6.250000000e-2, 5.859375000e-3,
1.000000000e-3, 1.708984375e-3
} ;
double min_fix3[4] = {
3.125000000e-2, 7.324218750e-4,
1.000000000e-4, 1.068115234e-4
} ;
double min_fix4[4] = {
1.562500000e-2, 9.155273437e-5,
1.000000000e-5, 6.675720215e-6
} ;
double min_fix5[4] = {
7.812500000e-3, 1.144409180e-5,
1.000000000e-6, 4.172325134e-7
} ;
double min_fix6[4] = {
6.906250000e-3, 1.430511475e-6,
1.000000000e-7, 2.607703209e-8
} ;
double min_fix7[4] = {
1.953125000e-3, 1.788139343e-7,
1.000000000e-8, 1.629814506e-9
} ;
double min_fix8[4] = {
9.765625000e-4, 2.235174179e-8,
1.000000000e-9, 1.018634066e-10
} ;
double min_fix9[4] = {
4.882812500e-4, 2.793967724e-9,
1.000000000e-10, 6.366462912e-12
} ;
extern char *base_str[] ; /* Strings for each base value. */
extern char *cmdstr[] ; /* Strings for each command line option. */
extern char *dtype_str[] ; /* Strings for each display mode value. */
extern char *lstrs[] ; /* Labels for various Motif items. */
extern char *mess[] ; /* Message strings. */
extern char *mode_str[] ; /* Strings for each mode value. */
extern char *opts[] ; /* Command line option strings. */
extern char *ttype_str[] ; /* Strings for each trig type value. */
extern char *ustrs[] ; /* Usage message strings. */
extern char *vstrs[] ; /* Various strings. */
char digits[] = "0123456789ABCDEF" ;
int basevals[4] = { 2, 8, 10, 16 } ;
int left_pos[BCOLS] = { 3, 2, 1, 0 } ; /* Left positions. */
int right_pos[BCOLS] = { 0, 1, 2, 3 } ; /* "Right" positions. */
/* Valid keys when an error condition has occured. */
/* MEM KEYS clr clr QUIT REDRAW */
char validkeys[MAXVKEYS] = { 'm', 'k', '\177', '\013', 'q', '\f' } ;
Vars v ; /* Calctool variables and options. */
struct menu_entry menu_entries[MAXENTRIES] ;
struct menu cmenus[MAXMENUS] = { /* Calculator menus. */
/* title total index defval */
{ (char *) NULL, 10, 0, 2 /* 2 places */ }, /* ACC */
{ (char *) NULL, 4, 20, 2 /* Decimal */ }, /* BASE TYPE */
{ (char *) NULL, 10, 0, 0 /* Con. 0 */ }, /* CON */
{ (char *) NULL, 10, 10, 0 /* Reg. 0 */ }, /* EXCH */
{ (char *) NULL, 10, 0, 0 /* Fun. 0 */ }, /* FUN */
{ (char *) NULL, 4, 30, 0 /* Basic */ }, /* MODE */
{ (char *) NULL, 3, 24, 1 /* Fixed */ }, /* NUM TYPE */
{ (char *) NULL, 10, 10, 0 /* Reg. 0 */ }, /* RCL */
{ (char *) NULL, 10, 10, 0 /* Reg. 0 */ }, /* STO */
{ (char *) NULL, 3, 27, 0 /* Degrees */ }, /* TRIG TYPE */
} ;
/* This table shows the keyboard values that are currently being used:
*
* | a b c d e f g h i j k l m n o p q r s t u v w x y z
*-------------+--------------------------------------------------
* Control: | a c d f h i l m r s t u y
* Lower: | a b c d e f h i k m n p q r s v x y
* Upper: | A B C D E F G M N P Q R S T X
* Numeric: | 0 1 2 3 4 5 6 7 8 9
* Other: | @ . + - * / = % ( ) # < > [ ] { } | & ~ ^ ? ! \177
*----------------------------------------------------------------
*/
/* Calculator button values. */
struct button buttons[TITEMS] = {
/* str str2 value opdisp menutype resname func */
/* Row 1. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_FUN, "fun", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_CON, "con", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "keys", do_keys },
/* Row 2. */
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "int", do_portion },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "frac", do_portion },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "abs", do_portion },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "exp", do_expno },
/* Row 3. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_ACC, "acc", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_STO, "sto", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_RCL, "rcl", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_EXCH, "exch", do_pending },
/* Row 4. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
/* Row 5. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
/* Row 6. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "blank", do_none },
/* Row 7. */
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "recip", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "square", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "sqrt", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "percent", do_calc },
/* Row 8. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "lparen", do_paren },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "rparen", do_paren },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "bsp", do_delete },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "clr", do_clear },
/* Row 9. */
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "numd", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "nume", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "numf", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "chs", do_immed },
/* Row 10. */
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "numa", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "numb", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "numc", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "mul", do_calc },
/* Row 11. */
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num7", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num8", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num9", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "div", do_calc },
/* Row 12. */
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num4", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num5", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num6", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "sub", do_calc },
/* Row 13. */
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num1", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num2", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num3", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "add", do_calc },
/* Row 14. */
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "num0", do_number },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "point", do_point },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "equals", do_calc },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "quit", do_frame },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_BASE, "base", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NUM, "disp", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_MODE, "mode", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_TRIG, "trig", do_pending },
} ;
struct button mode_buttons[MAXMODES * MODEKEYS] = {
/* str str2 value opdisp menutype resname func */
/* Financial. */
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "term", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "rate", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "pv", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "pmt", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "fv", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "ppy", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "clrreg", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "ctrm", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "ddb", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "sln", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "syd", do_business},
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
/* Logical. */
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "lshift", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "rshift", do_pending },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "and16", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "and32", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "or", do_calc },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "and", do_calc },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "not", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "xor", do_calc },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "xnor", do_calc },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
/* Scientific. */
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "inv", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "hyp", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "etox", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "tentox", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_SET, M_NONE, "ytox", do_calc },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "xfact", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "cos", do_trig },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "sin", do_trig },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "tan", do_trig },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "ln", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "log", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_CLEAR, M_NONE, "rand", do_immed },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
{ (char *)NULL, (char *)NULL, 0, OP_NOP, M_NONE, "", do_none },
} ;
int
char_val(chr)
char chr ;
{
if (chr >= '0' && chr <= '9') return(chr - '0') ;
else if (chr >= 'a' && chr <= 'f') return(chr - 'a' + 10) ;
else if (chr >= 'A' && chr <= 'F') return(chr - 'A' + 10) ;
else return(-1) ;
}
void
clear_display()
{
int i ;
v->pointed = 0 ;
v->toclear = 1 ;
v->defState = 1 ;
i = 0 ;
mpcim(&i, v->MPdisp_val) ;
STRCPY(v->display, make_number(v->MPdisp_val, FALSE)) ;
set_item(DISPLAYITEM, v->display) ;
v->hyperbolic = 0 ;
v->inverse = 0 ;
v->show_paren = 0 ;
v->opsptr = 0 ; /* Clear parentheses stacks. */
v->numsptr = 0 ;
set_item(HYPITEM, " ") ;
set_item(INVITEM, " ") ;
}
char *
convert(line) /* Convert .dtcalcrc line to ascii values. */
char *line ; /* Input line to be converted. */
{
static char output[MAXLINE] ; /* Converted output record. */
int ctrl = 0 ; /* Set if we are processing a control character. */
int i ; /* Position within input line. */
int len ;
int n = 0 ; /* Position within output line. */
len = strlen(line) ;
for (i = 0; i < len; i++)
{
if (line[i] == ' ') continue ;
else if (line[i] == '\\') ctrl = 1 ;
else if (ctrl)
{
output[n++] = CTL(line[i]) ;
ctrl = 0 ;
}
else output[n++] = line[i] ;
}
output[n] = '\0' ;
return(output) ;
}
void
do_dtcalc(argc, argv)
int argc ;
char **argv ;
{
char *ptr ;
int i ;
v->progname = argv[0] ; /* Save programs name. */
v->appname = NULL ;
init_cmdline_opts() ; /* Initialise command line option strings. */
if ((ptr = strrchr(argv[0], '/')) != NULL)
read_str(&v->appname, ptr+1) ;
else read_str(&v->appname, argv[0]) ;
init_text() ; /* Setup text strings depending upon language. */
init_vars() ; /* Setup default values for variables. */
key_init() ; /* Determine numeric function keys. */
load_resources() ; /* Get resources from various places. */
read_resources() ; /* Read resources from merged database. */
get_options(argc, argv) ; /* Get command line arguments. */
if(application_args.session != NULL)
{
RestoreSession();
}
read_rcfiles() ; /* Read .dtcalcrc's files. */
init_graphics() ;
make_frames() ; /* Create dtcalc window frames. */
v->shelf = NULL ; /* No selection for shelf initially. */
v->noparens = 0 ; /* No unmatched brackets initially. */
v->opsptr = 0 ; /* Nothing on the parentheses op stack. */
v->numsptr = 0 ; /* Nothing on the parenthese numeric stack. */
v->pending = 0 ; /* No initial pending command. */
if(application_args.session == NULL)
v->tstate = 0 ; /* Button values displayed first. */
v->hyperbolic = 0 ; /* Normal trig functions initially. */
v->inverse = 0 ; /* No inverse functions initially. */
srand48((long) time((time_t *) 0)) ; /* Seed random number generator. */
make_items() ; /* Create server images and fir frames. */
if(v->display[0] == 0)
do_clear() ; /* Initialise and clear display. */
if (v->rstate == TRUE) /* Show the memory register window? */
{
make_registers(MEM) ;
if (!v->iconic) win_display(FCP_REG, TRUE) ;
}
if (!v->iconic) win_display(FCP_MODE, TRUE) ;
show_display(v->MPdisp_val) ; /* Output in correct display mode. */
save_cmdline(argc, argv) ; /* Setup dtcalc command line. */
start_tool() ; /* Display the calculator. */
}
/* Dtcalc's customised math library error-handling routine. */
void
doerr(errmes)
char *errmes ;
{
if (!v->started) return ;
STRCPY(v->display, errmes) ;
set_item(DISPLAYITEM, v->display) ;
v->error = 1 ;
beep() ;
set_item(OPITEM, vstrs[(int) V_CLR]) ;
}
int
get_bool_resource(rtype, boolval) /* Get boolean resource from database. */
enum res_type rtype ;
int *boolval ;
{
char *val, tempstr[MAXLINE] ;
int len, n ;
if ((val = get_resource(rtype)) == NULL) return(0) ;
STRCPY(tempstr, val) ;
len = strlen(tempstr) ;
for (n = 0; n < len; n++)
if (isupper(tempstr[n])) tempstr[n] = tolower(tempstr[n]) ;
if (EQUAL(tempstr, vstrs[(int) V_TRUE])) *boolval = TRUE ;
else *boolval = FALSE ;
return(1) ;
}
/* Get button index for given character value, setting curwin,
* row and column appropriately. Note that if the value isn't found,
* then a value of TITEMS is returned. This is "chucked out" by
* process_item as being invalid.
*
* XXX: This routine can be improved by using a hash lookup table.
*/
int
get_index(ch)
char ch ;
{
int n, val ;
for (n = 0; n < TITEMS; n++) {
if (ch == buttons[n].value)
break ;
}
if (n < TITEMS)
v->curwin = FCP_KEY ;
else
{
return(TITEMS) ;
}
v->row = n / MAXCOLS ;
v->column = n - (v->row * MAXCOLS) ;
return(n) ;
}
int
get_int_resource(rtype, intval) /* Get integer resource from database. */
enum res_type rtype ;
int *intval ;
{
char *val ;
if ((val = get_resource(rtype)) == NULL) return(0) ;
*intval = atoi(val) ;
return(1) ;
}
/* Get keyboard equivalent from first character of localised string. */
void
get_key_val(val, str)
char *val, *str ;
{
*val = str[0] ;
}
void
get_label(n)
int n ;
{
int val ;
char *temp;
val = buttons[n].value ;
if (v->tstate)
temp = buttons[n].str2;
else
temp = buttons[n].str;
if(temp != NULL)
STRCPY(v->pstr, temp) ;
else
STRCPY(v->pstr, "");
}
void
get_options(argc, argv) /* Extract command line options. */
int argc ;
char *argv[] ;
{
char next[MAXLINE] ; /* The next command line parameter. */
char strval[MAXLINE] ;
char *msg;
int i, len;
INC ;
while (argc > 0)
{
if (argv[0][0] == '-' || argv[0][0] == '+')
{
switch (argv[0][1])
{
case 'D' : v->MPdebug = TRUE ; /* MP debug info. to stderr. */
break ;
case 'a' : INC ;
getparam(next, argv, opts[(int) O_ACCVAL]) ;
v->accuracy = atoi(next) ;
if (v->accuracy < 0 || v->accuracy > 9)
{
msg = (char *) XtMalloc(strlen(
opts[(int) O_ACCRANGE]) + 3);
sprintf(msg, "%s", opts[(int) O_ACCRANGE]);
_DtSimpleError (v->appname, DtWarning, NULL, msg);
XtFree(msg);
v->accuracy = 2 ;
}
break ;
case 'm' : INC ;
msg = (char *) XtMalloc(strlen(opts[(int) O_MODE])+
strlen(next) + 3);
sprintf(msg, opts[(int) O_MODE], next);
getparam(next, argv, msg) ;
XtFree(msg);
STRCPY(strval, next) ;
len = strlen(strval) ;
for (i = 0; i < len; i++)
{
if (islower(strval[i]))
strval[i] = toupper(strval[i]) ;
}
if(strcmp(strval, "FINANCIAL") == 0)
v->modetype = FINANCIAL ;
else if(strcmp(strval, "LOGICAL") == 0)
v->modetype = LOGICAL ;
else if(strcmp(strval, "SCIENTIFIC") == 0)
v->modetype = SCIENTIFIC ;
else
{
msg = (char *) XtMalloc(strlen(opts[(int) O_MODE])+
strlen(next) + 3);
sprintf(msg, opts[(int) O_MODE], next);
_DtSimpleError (v->appname, DtWarning, NULL, msg);
XtFree(msg);
v->modetype = SCIENTIFIC ;
}
break ;
case 'b' : INC ;
getparam(next, argv, opts[(int) O_BASE]) ;
STRCPY(strval, next) ;
len = strlen(strval) ;
for (i = 0; i < len; i++)
{
if (islower(strval[i]))
strval[i] = toupper(strval[i]) ;
}
if(strncmp(strval, "BIN", 3) == 0)
v->base = BIN ;
else if(strncmp(strval, "OCT", 3) == 0)
v->base = OCT ;
else if(strncmp(strval, "DEC", 3) == 0)
v->base = DEC ;
else if(strncmp(strval, "HEX", 3) == 0)
v->base = HEX ;
else
{
msg = (char *) XtMalloc(strlen(
opts[(int) O_BASE]) + 3);
sprintf(msg, "%s", opts[(int) O_BASE]);
_DtSimpleError (v->appname, DtWarning, NULL, msg);
XtFree(msg);
v->base = DEC ;
}
break ;
case 'n' : if(strcmp(&argv[0][1], "notation") == 0)
{
INC ;
msg = (char *) XtMalloc(strlen(
opts[(int) O_DISPLAY]) +
strlen(next) + 3);
sprintf(msg, opts[(int) O_DISPLAY], next);
getparam(next, argv, msg) ;
XtFree(msg);
STRCPY(strval, next) ;
len = strlen(strval) ;
for (i = 0; i < len; i++)
{
if (islower(strval[i]))
strval[i] = toupper(strval[i]) ;
}
if(strncmp(strval, "FIX", 3) == 0)
v->dtype = FIX ;
else if(strncmp(strval, "ENG", 3) == 0)
v->dtype = ENG ;
else if(strncmp(strval, "SCI", 3) == 0)
v->dtype = SCI ;
else
{
msg = (char *) XtMalloc(strlen(
opts[(int) O_DISPLAY]) +
strlen(next) + 3);
sprintf(msg, opts[(int) O_DISPLAY], next);
_DtSimpleError (v->appname, DtWarning, NULL, msg);
XtFree(msg);
v->dtype = FIX ;
}
break ;
}
else if(strcmp(&argv[0][1], "no_menu_bar") == 0)
{
INC ;
application_args.menuBar = False;
break ;
}
case 't' : if(strcmp(&argv[0][1], "trig") == 0)
{
INC ;
msg = (char *) XtMalloc(strlen(
opts[(int) O_TRIG]) +
strlen(next) + 3);
sprintf(msg, opts[(int) O_TRIG], next);
getparam(next, argv, msg) ;
XtFree(msg);
STRCPY(strval, next) ;
len = strlen(strval) ;
for (i = 0; i < len; i++)
{
if (islower(strval[i]))
strval[i] = toupper(strval[i]) ;
}
if(strncmp(strval, "DEG", 3) == 0)
v->ttype = DEG ;
else if(strncmp(strval, "RAD", 3) == 0)
v->ttype = RAD ;
else if(strncmp(strval, "GRAD", 4) == 0)
v->ttype = GRAD ;
else
{
msg = (char *) XtMalloc(strlen(
opts[(int) O_TRIG]) +
strlen(next) + 3);
sprintf(msg, opts[(int) O_TRIG], next);
_DtSimpleError (v->appname, DtWarning, NULL, msg);
XtFree(msg);
v->ttype = DEG ;
}
break ;
}
case 's' : if(strcmp(&argv[0][1], "session") == 0)
{
INC ;
getparam(next, argv, opts[(int) O_SESSION]) ;
application_args.session = XtNewString(next);
break ;
}
case '?' :
case 'v' : usage(v->progname) ;
break ;
default :
toolarg : /* Pick up generic tool arguments. */
usage(v->progname) ;
}
INC ;
}
else INC ;
}
}
void
getparam(s, argv, errmes)
char *s, *argv[], *errmes ;
{
char *msg;
if (*argv != NULL && argv[0][0] != '-') STRCPY(s, *argv) ;
else
{
msg = (char *) XtMalloc(strlen(mess[(int) MESS_PARAM]) +
strlen(errmes) + 3);
sprintf(msg, mess[(int) MESS_PARAM], errmes);
_DtSimpleError (v->appname, DtError, NULL, msg);
FPRINTF(stderr, mess[(int) MESS_PARAM], errmes) ;
exit(1) ;
}
}
void
get_rcfile(name) /* Read .dtcalcrc file. */
char *name ;
{
char line[MAXLINE] ; /* Current line from the .dtcalcrc file. */
char tmp[MAXLINE] ; /* Used to extract definitions. */
double cval ; /* Current constant value being converted. */
int i ; /* Index to constant or function array. */
int isval ; /* Set to 'c' or 'f' for convertable line. */
int len, n ;
FILE *rcfd ; /* File descriptor for dtcalc rc file. */
if ((rcfd = fopen(name, "r")) == NULL) return ;
/* Process the .dtcalcrc file. There are currently four types of
* records to look for:
*
* 1) Those starting with a hash in the first column are comments.
*
* 2) Lines starting with 'c' or 'C' in the first column are
* definitions for constants. The cC is followed by a digit in
* the range 0-9, then a space. This is followed by a number
* in fixed or scientific notation. Following this is an optional
* comment, which if found, will be used in the popup menu for
* the constants. If the comment is present, there must be at
* least one space between this and the preceding number.
*
* 3) Those starting with a 'f' or a 'F' in the first column are
* definitions for functions. The fF is followed by a digit in
* the range 0-9, then a space. This is followed by a function
* definition. Following this is an optional comment, which if
* found, will be used in the popup menu for the functions.
* If the comment is present, there must be at least one space
* between this and the preceding function definition.
*
* 4) Lines starting with a 'r' or a 'R' in the first column are
* definitions for the initial contents of the calculators
* memory registers. The rR is followed by a digit in the
* range 0-9, then a space. This is followed by a number in
* fixed or scientific notation. The rest of the line is ignored.
*
* All other lines are ignored.
*
* Two other things to note. There should be no embedded spaces in
* the function definitions, and whenever a backslash is found, that
* and the following character signify a control character, for
* example \g would be ascii 7.
*/
while (fgets(line, MAXLINE, rcfd) != NULL)
{
isval = 0 ;
if (line[0] == 'c' || line[0] == 'C') isval = 'c' ;
else if (line[0] == 'f' || line[0] == 'F') isval = 'f' ;
else if (line[0] == 'r' || line[0] == 'R') isval = 'r' ;
if (isval)
if (line[1] >= '0' && line[1] <= '9' && line[2] == ' ')
{
i = char_val(line[1]) ;
if (isval == 'c')
{
n = sscanf(&line[3], "%lf", &cval) ;
if (n == 1)
{
if(line[3] == '-')
{
MPstr_to_num(&line[4], DEC, v->MPcon_vals[i]) ;
mpneg(v->MPcon_vals[i], v->MPcon_vals[i]) ;
}
else
MPstr_to_num(&line[3], DEC, v->MPcon_vals[i]) ;
}
}
else if (isval == 'f')
{
SSCANF(&line[3], "%s", tmp) ;
STRCPY(v->fun_vals[i], convert(tmp)) ;
}
else if (isval == 'r')
{
n = sscanf(&line[3], "%lf", &cval) ;
if (n == 1) MPstr_to_num(&line[3], DEC, v->MPmvals[i]) ;
continue ;
}
len = strlen(line) ;
for (n = 3; n < len; n++)
if (line[n] == ' ' || line[n] == '\n')
{
while (line[n] == ' ') n++ ;
line[strlen(line)-1] = '\0' ;
if (isval == 'c')
{
STRCPY(tmp, make_number(v->MPcon_vals[i], TRUE)) ;
SPRINTF(v->con_names[i], "%1d: %s [%s]",
i, tmp, &line[n]) ;
}
else
SPRINTF(v->fun_names[i], "%1d: %s [%s]",
i, tmp, &line[n]) ;
break ;
}
}
}
FCLOSE(rcfd) ;
}
int
get_str_resource(rtype, strval) /* Get a string resource from database. */
enum res_type rtype ;
char *strval ;
{
char *val ;
int i, len ;
if ((val = get_resource(rtype)) == NULL) return(0) ;
STRCPY(strval, val) ;
len = strlen(strval) ;
if(rtype != R_TRIG && rtype != R_DISPLAY)
{
for (i = 0; i < len; i++)
if (islower(strval[i])) strval[i] = toupper(strval[i]) ;
}
return(1) ;
}
void
grey_buttons(base) /* Grey out numeric buttons depending upon base. */
enum base_type base ;
{
char val ;
int column, dim, i, n, row ;
for (i = 0; i < 16; i++)
{
val = digits[i] ;
if (isupper(val)) val = tolower(val) ;
for (n = 0; n < TITEMS; n++)
if (val == buttons[n].value) break ;
row = n / MAXCOLS ;
column = n - (row * MAXCOLS) ;
if (i < basevals[(int) base]) dim = FALSE ;
else dim = TRUE ;
grey_button(row, column, dim) ;
}
}
void
handle_menu_selection(n, item) /* Process right button menu selection. */
int n, item ;
{
if (item != -1)
{
if (IS_KEY(v->pending, KEY_LPAR)) /* Are we inside parentheses? */
{
v->current = buttons[n].value ;
do_paren() ;
v->current = item ;
do_paren() ;
}
else
{
save_pending_values(buttons[n].value) ;
v->current = item ;
v->ismenu = 1 ; /* To prevent grey buttons being redrawn. */
do_pending() ;
v->ismenu = 0 ;
}
}
}
void
init_vars() /* Setup default values for various variables. */
{
int acc, i, n, size ;
v->accuracy = 2 ; /* Initial accuracy. */
v->base = DEC ; /* Initial base. */
v->dtype = FIX ; /* Initial number display mode. */
v->ttype = DEG ; /* Initial trigonometric type. */
v->modetype = SCIENTIFIC; /* Initial calculator mode. */
v->rstate = 0 ; /* No memory register frame display initially. */
v->frstate = 0 ; /* No fin. memory register frame display
initially. */
v->iconic = FALSE ; /* Calctool not iconic by default. */
v->MPdebug = FALSE ; /* No debug info by default. */
v->MPerrors = TRUE ; /* No error information. */
acc = MAX_DIGITS + 12 ; /* MP internal accuracy. */
size = MP_SIZE ;
mpset(&acc, &size, &size) ;
v->hasicon = FALSE ; /* Use standard dtcalc icon by default. */
v->beep = TRUE ; /* Beep on error by default. */
v->error = 0 ; /* No calculator error initially. */
v->key_exp = 0 ; /* Not entering an exponent number. */
v->pending_op = 0 ; /* No pending arithmetic operation. */
v->titleline = NULL ; /* No User supplied title line. */
v->display[0] = 0 ;
v->x = 0;
v->x = 0;
v->width = 0;
v->height = 0;
v->workspaces = NULL;
read_str(&v->iconlabel, lstrs[(int) L_LCALC]) ; /* Default icon label. */
MPstr_to_num("0.621", DEC, v->MPcon_vals[0]) ; /* kms/hr <=> miles/hr. */
MPstr_to_num("1.4142135623", DEC, v->MPcon_vals[1]) ; /* square root of 2 */
MPstr_to_num("2.7182818284", DEC, v->MPcon_vals[2]) ; /* e */
MPstr_to_num("3.1415926535", DEC, v->MPcon_vals[3]) ; /* pi */
MPstr_to_num("2.54", DEC, v->MPcon_vals[4]) ; /* cms <=> inch. */
MPstr_to_num("57.295779513", DEC, v->MPcon_vals[5]) ; /* degrees/radian. */
MPstr_to_num("1048576.0", DEC, v->MPcon_vals[6]) ; /* 2 ^ 20. */
MPstr_to_num("0.0353", DEC, v->MPcon_vals[7]) ; /* grams <=> ounce. */
MPstr_to_num("0.948", DEC, v->MPcon_vals[8]) ; /* Kjoules <=> BTU's. */
MPstr_to_num("0.0610", DEC, v->MPcon_vals[9]) ; /* cms3 <=> inches3. */
n = 0 ;
for (i = 0; i < MAXREGS; i++) mpcim(&n, v->MPmvals[i]) ;
for (i = 0; i < FINREGS; i++)
v->MPfvals[i] = (double)n;
v->MPfvals[FINREGS - 1] = (double)12;
}
void
initialise()
{
int i ;
v->error = 0 ; /* Currently no display error. */
v->cur_op = '?' ; /* No arithmetic operator defined yet. */
v->old_cal_value = '?' ;
i = 0 ;
mpcim(&i, v->MPresult) ; /* No previous result yet. */
mpcim(&i, v->MPlast_input) ;
}
char *
make_eng_sci(MPnumber) /* Convert engineering or scientific number. */
int *MPnumber ;
{
char fixed[MAX_DIGITS+1], *optr ;
int MP1[MP_SIZE], MPatmp[MP_SIZE], MPval[MP_SIZE] ;
int MP1base[MP_SIZE], MP3base[MP_SIZE], MP10base[MP_SIZE] ;
int i, dval, len, n ;
int MPmant[MP_SIZE] ; /* Mantissa. */
int ddig ; /* Number of digits in exponent. */
int eng = 0 ; /* Set if this is an engineering number. */
int exp = 0 ; /* Exponent */
if (v->dtype == ENG) eng = 1 ;
optr = v->snum ;
mpabs(MPnumber, MPval) ;
n = 0 ;
mpcim(&n, MP1) ;
if (mplt(MPnumber, MP1)) *optr++ = '-' ;
mpstr(MPval, MPmant) ;
mpcim(&basevals[(int) v->base], MP1base) ;
n = 3 ;
mppwr(MP1base, &n, MP3base) ;
n = 10 ;
mppwr(MP1base, &n, MP10base) ;
n = 1 ;
mpcim(&n, MP1) ;
mpdiv(MP1, MP10base, MPatmp) ;
n = 0 ;
mpcim(&n, MP1) ;
if (!mpeq(MPmant, MP1))
{
while (mpge(MPmant, MP10base))
{
exp += 10 ;
mpmul(MPmant, MPatmp, MPmant) ;
}
while ((!eng && mpge(MPmant, MP1base)) ||
(eng && (mpge(MPmant, MP3base) || exp % 3 != 0)))
{
exp += 1 ;
mpdiv(MPmant, MP1base, MPmant) ;
}
while (mplt(MPmant, MPatmp))
{
exp -= 10 ;
mpmul(MPmant, MP10base, MPmant) ;
}
n = 1 ;
mpcim(&n, MP1) ;
while (mplt(MPmant, MP1) || (eng && exp % 3 != 0))
{
exp -= 1 ;
mpmul(MPmant, MP1base, MPmant) ;
}
}
STRCPY(fixed, make_fixed(MPmant, MAX_DIGITS-6)) ;
len = strlen(fixed) ;
for (i = 0; i < len; i++) *optr++ = fixed[i] ;
*optr++ = 'e' ;
if (exp < 0)
{
exp = -exp ;
*optr++ = '-' ;
}
else *optr++ = '+' ;
MPstr_to_num("0.5", DEC, MP1) ;
mpaddi(MP1, &exp, MPval) ;
n = 1 ;
mpcim(&n, MP1) ;
for (ddig = 0; mpge(MPval, MP1); ddig++)
mpdiv(MPval, MP1base, MPval) ;
if (ddig == 0) *optr++ = '0' ;
while (ddig-- > 0)
{
mpmul(MPval, MP1base, MPval) ;
mpcmi(MPval, &dval) ;
*optr++ = digits[dval] ;
dval = -dval ;
mpaddi(MPval, &dval, MPval) ;
}
*optr++ = '\0' ;
v->toclear = 1 ;
v->pointed = 0 ;
return(v->snum) ;
}
char *
make_fixed(MPnumber, cmax) /* Convert MP number to fixed number string. */
int *MPnumber ;
int cmax ; /* Maximum characters to generate. */
{
char *optr ;
int MP1base[MP_SIZE], MP1[MP_SIZE], MP2[MP_SIZE], MPval[MP_SIZE] ;
int ndig ; /* Total number of digits to generate. */
int ddig ; /* Number of digits to left of . */
int dval, n ;
optr = v->fnum ;
mpabs(MPnumber, MPval) ;
n = 0 ;
mpcim(&n, MP1) ;
if (mplt(MPnumber, MP1)) *optr++ = '-' ;
mpcim(&basevals[(int) v->base], MP1base) ;
mppwr(MP1base, &v->accuracy, MP1) ;
MPstr_to_num("0.5", DEC, MP2) ;
mpdiv(MP2, MP1, MP1) ;
mpadd(MPval, MP1, MPval) ;
n = 1 ;
mpcim(&n, MP2) ;
if (mplt(MPval, MP2))
{
ddig = 0 ;
*optr++ = '0' ;
cmax-- ;
}
else
for (ddig = 0; mpge(MPval, MP2); ddig++)
mpdiv(MPval, MP1base, MPval) ;
ndig = MIN(ddig + v->accuracy, --cmax) ;
while (ndig-- > 0)
{
if (ddig-- == 0) *optr++ = '.' ;
mpmul(MPval, MP1base, MPval) ;
mpcmi(MPval, &dval) ;
*optr++ = digits[dval] ;
dval = -dval ;
mpaddi(MPval, &dval, MPval) ;
}
*optr++ = '\0' ;
v->toclear = 1 ;
v->pointed = 0 ;
return(v->fnum) ;
}
void
make_items()
{
set_item(DISPLAYITEM, v->display) ;
set_item(OPITEM, " ") ;
set_item(HYPITEM, " ") ;
set_item(INVITEM, " ") ;
}
char *
make_number(MPnumber, mkFix) /* Convert MP number to character string. */
int *MPnumber ;
BOOLEAN mkFix ;
{
double number, val ;
/* NOTE: make_number can currently set v->error when converting to a double.
* This is to provide the same look&feel as V3 even though dtcalc
* now does internal arithmetic to "infinite" precision.
*
* XXX: Needs to be improved. Shouldn't need to convert to a double in
* order to do these tests.
*/
mpcmd(MPnumber, &number) ;
val = fabs(number) ;
if (v->error) return(vstrs[(int) V_ERROR]) ;
if (v->dtype == ENG || v->dtype == SCI ||
v->dtype == FIX && val != 0.0 && (val > max_fix[(int) v->base]))
return(make_eng_sci(MPnumber)) ;
else if (v->dtype == FIX && val != 0.0 && mkFix)
{
if(v->accuracy == 0)
{
if(val <= min_fix0[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 1)
{
if(val <= min_fix1[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 2)
{
if(val <= min_fix2[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 3)
{
if(val <= min_fix3[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 4)
{
if(val <= min_fix4[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 5)
{
if(val <= min_fix5[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 6)
{
if(val <= min_fix6[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 7)
{
if(val <= min_fix7[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 8)
{
if(val <= min_fix8[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
else if(v->accuracy == 9)
{
if(val <= min_fix9[(int) v->base])
return(make_eng_sci(MPnumber)) ;
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
}
else
return(make_fixed(MPnumber, MAX_DIGITS)) ;
}
/*ARGSUSED*/
int
matherr(exc) /* Default math library exception handling routine. */
struct exception *exc ;
{
char msg[100];
#if 0
if (exc) {
strcpy(msg, exc->name);
strcat(msg, ": ");
if(exc->type == DOMAIN)
strcat(msg, "DOMAIN ");
else if(exc->type == SING)
strcat(msg, "SING ");
else if(exc->type == OVERFLOW)
strcat(msg, "OVERFLOW ");
else if(exc->type == UNDERFLOW)
strcat(msg, "UNDERFLOW ");
else if(exc->type == TLOSS)
strcat(msg, "TLOSS ");
else if(exc->type == PLOSS)
strcat(msg, "PLOSS ");
strcat(msg, vstrs[(int) V_ERROR]);
_DtSimpleError (v->appname, DtWarning, NULL, msg);
}
#endif
doerr(vstrs[(int) V_ERROR]) ;
return(1) ; /* Value ignored. */
}
void
MPstr_to_num(str, base, MPval) /* Convert string into an MP number. */
char *str ;
enum base_type base ;
int *MPval ;
{
char *optr ;
int MP1[MP_SIZE], MP2[MP_SIZE], MPbase[MP_SIZE] ;
int i, inum ;
int neg = 0 ;
int exp = 0 ;
int exp_sign = 1 ;
i = 0 ;
mpcim(&i, MPval) ;
mpcim(&basevals[(int) base], MPbase) ;
optr = str ;
while (*optr == ' ') optr++ ;
if(*optr == '-')
{
/* negative number */
optr++ ;
neg = 1;
}
while ((inum = char_val(*optr)) >= 0)
{
mpmul(MPval, MPbase, MPval) ;
mpaddi(MPval, &inum, MPval) ;
optr++ ;
}
if (*optr == '.')
for (i = 1; (inum = char_val(*++optr)) >= 0; i++)
{
mppwr(MPbase, &i, MP1) ;
mpcim(&inum, MP2) ;
mpdiv(MP2, MP1, MP1) ;
mpadd(MPval, MP1, MPval) ;
}
while (*optr == ' ') optr++ ;
if (*optr != '\0')
{
if (*optr == '-') exp_sign = -1 ;
while ((inum = char_val(*++optr)) >= 0)
exp = exp * basevals[(int) base] + inum ;
}
exp *= exp_sign ;
if (v->key_exp || exp_sign == -1)
{
mppwr(MPbase, &exp, MP1) ;
mpmul(MPval, MP1, MPval) ;
}
if( neg == 1)
{
i = -1 ;
mpcim(&i, MP1) ;
mpmul(MPval, MP1, MPval) ;
}
}
void
paren_disp(c) /* Append the latest parenthesis char to the display item. */
char c ;
{
int i, n ;
/* If the character is a Delete, clear the whole line, and exit parenthesis
* processing.
*
* If the character is a Back Space, remove the last character. If the last
* character was a left parenthesis, decrement the parentheses count. If
* the parentheses count is zero, exit parenthesis processing.
*
* If the character is a control character (not Ctrl-h), then append ^(char).
*
* Otherwise just append the character.
*/
n = strlen(v->display) ;
if (IS_KEY(c, KEY_CLR)) /* Is it a Delete character? */
{
v->noparens = v->pending = v->opsptr = v->numsptr = 0 ;
v->cur_op = '?' ;
set_item(OPITEM, "") ;
i = 0 ;
mpcim(&i, v->MPdisp_val) ;
show_display(v->MPdisp_val) ;
set_base(v->base);
set_numtype(v->dtype);
set_option_menu((int) TTYPEITEM, (int)v->ttype);
make_modewin() ;
v->curwin = FCP_KEY ;
v->defState = 1;
return ;
}
else if (IS_KEY(c, KEY_BSP)) /* Is is a Back Space character? */
{
if (!n) return ;
if (v->display[n-1] == '(')
{
v->noparens-- ;
if (!v->noparens)
{
v->pending = v->opsptr = v->numsptr = 0 ;
v->cur_op = '?' ;
set_item(OPITEM, "") ;
show_display(v->MPdisp_val) ;
return ;
}
}
v->display[n-1] = '\0' ;
}
else if (c <= CTL('z')) /* Is it a control character? */
{
if (n < MAXLINE-2)
{
v->display[n] = '^' ;
v->display[n+1] = c + 96 ;
v->display[n+2] = '\0' ;
}
}
else /* It must be an ordinary character. */
{
if (n < MAXLINE-1)
{
v->display[n] = c ;
v->display[n+1] = '\0' ;
}
}
n = (n < MAX_DIGITS) ? 0 : n - MAX_DIGITS ;
v->show_paren = 1 ; /* Hack to get set_item to really display it. */
set_item(DISPLAYITEM, &v->display[n]) ;
v->show_paren = 0 ;
}
void
process_event(type) /* Process this event. */
int type ;
{
int ival ;
switch (type)
{
case KEYBOARD_DOWN : if (v->pending)
{
v->current = v->cur_ch ;
do_pending() ;
}
else
{
ival = get_index(v->cur_ch) ;
if (ival < TITEMS - EXTRA) {
if ((v->modetype == FINANCIAL &&
ival == 23) ||
(v->modetype == LOGICAL && (
ival == 21 || ival == 22 ||
ival == 23)))
break;
else
/* go arm the button */
draw_button(ival, v->curwin, v->row,
v->column, TRUE) ;
}
process_item(ival) ;
}
break ;
case KEYBOARD_UP : ival = get_index(v->cur_ch) ;
if (ival < TITEMS - EXTRA) {
if ((v->modetype == FINANCIAL &&
ival == 23) ||
(v->modetype == LOGICAL && (
ival == 21 || ival == 22 ||
ival == 23)))
break;
else
/* go disarm the button */
draw_button(ival, v->curwin, v->row,
v->column, FALSE) ;
}
/* go disarm the button */
draw_button(ival, v->curwin, v->row,
v->column, FALSE) ;
break ;
}
}
void
process_item(n)
int n ;
{
int i,isvalid ;
if (n < 0 || n >= TITEMS)
{
beep() ;
v->error = TRUE;
}
v->current = buttons[n].value ;
if (v->current == '*') v->current = 'x' ; /* Reassign "extra" values. */
if (v->current == '\015') v->current = '=' ;
if (v->current == 'Q') v->current = 'q' ;
if (v->error)
{
isvalid = 0 ; /* Must press a valid key first. */
for (i = 0; i < MAXVKEYS; i++)
if (v->current == validkeys[i]) isvalid = 1 ;
if (v->pending == '?') isvalid = 1 ;
if (!isvalid) return ;
v->error = 0 ;
}
if (v->pending)
{
if (v->pending_win == FCP_KEY) (*buttons[v->pending_n].func)() ;
else (*mode_buttons[MODEKEYS * ((int) v->pending_mode - 1) +
v->pending_n].func)() ;
return ;
}
switch (buttons[n].opdisp)
{
case OP_SET :
if (v->current == 'T')
{
if (v->modetype == SCIENTIFIC)
set_item(OPITEM, buttons[n].str) ;
else
v->pending = 0;
}
else
set_item(OPITEM, buttons[n].str) ;
break ;
case OP_CLEAR :
if (v->error)
set_item(OPITEM, vstrs[(int) V_CLR]) ;
else
set_item(OPITEM, "") ;
}
(*buttons[n].func)() ;
if(strcmp(buttons[n].resname, "clr") != 0)
v->defState = 0;
}
/* Process a portion of the parentheses stack. */
void
process_stack(startop, startnum, n)
int startop ; /* Initial position in the operand stack. */
int startnum ; /* Initial position in the numeric stack. */
int n ; /* Number of items to process. */
{
char sdisp[MAXLINE] ; /* Used to save display contents. */
int i ;
int nptr ; /* Pointer to next number from numeric stack. */
STRCPY(sdisp, v->display) ; /* Save current display. */
nptr = startnum ;
v->pending = 0 ;
v->cur_op = '?' ; /* Current operation is initially undefined. */
for (i = 0; i < n; i++)
{
if (v->opstack[startop + i] == -1)
{
mpstr(v->MPnumstack[nptr++], v->MPdisp_val) ;
}
else
{
v->cur_ch = v->opstack[startop + i] ;
if (v->cur_ch == '^') /* Control character? */
{
i++ ;
v->cur_ch = CTL(v->opstack[startop + i]) ;
}
if (v->pending)
{
v->current = v->cur_ch ;
do_pending() ;
}
else process_item(get_index(v->cur_ch)) ;
}
}
v->numsptr = startnum ;
push_num(v->MPdisp_val) ;
v->opsptr = startop - 1 ;
push_op(-1) ;
save_pending_values(KEY_LPAR) ;
STRCPY(v->display, sdisp) ; /* Restore current display. */
}
void
process_str(str, mtype)
char *str ;
enum menu_type mtype ;
{
int i, len ;
char save[80];
len = strlen(str) ;
STRCPY(save, v->display) ;
STRCPY(v->display, " ") ;
set_item(DISPLAYITEM, v->display);
for (i = 0 ; i < len; i++)
{
if(str[i] == '*')
str[i] = 'x';
if (v->error)
{
if(mtype == M_FUN)
{
STRCPY(v->display, save);
set_item(DISPLAYITEM, v->display);
v->error = 0;
}
return ;
}
if (v->pending)
{
v->current = str[i] ;
do_pending() ;
}
else
switch(v->base)
{
case DEC:
if(str[i] == 'a' ||
str[i] == 'b' ||
str[i] == 'c' ||
str[i] == 'd' ||
str[i] == 'e' ||
str[i] == 'f')
{
v->error = True;
beep();
break;
}
default:
process_item(get_index(str[i])) ;
}
}
}
void
read_rcfiles() /* Read .dtcalcrc's from home and current directories. */
{
char *home ; /* Pathname for users home directory. */
char name[MAXPATHLEN + 50] ; /* Full name of users .dtcalcrc file. */
char pathname[MAXPATHLEN + 5] ; /* Current working directory. */
char tmp[MAXLINE] ; /* For temporary constant string creation. */
int n ;
struct passwd *entry ;
for (n = 0; n < MAXREGS; n++)
{
STRCPY(tmp, make_number(v->MPcon_vals[n], FALSE)) ;
SPRINTF(name, "%1d: %s [%s]", n, tmp, v->con_names[n]) ;
STRCPY(v->con_names[n], name) ;
STRCPY(v->fun_vals[n], "") ; /* Initially empty function strings. */
}
if ((home = getenv("HOME")) == NULL)
{
if ((entry = getpwuid(getuid())) == NULL) return ;
home = entry->pw_dir ;
}
SPRINTF(name, "%s/%s", home, RCNAME) ;
get_rcfile(name) ; /* Read .dtcalcrc from users home directory. */
SPRINTF(name, "%s/%s", getcwd(pathname, MAXPATHLEN+1), RCNAME) ;
get_rcfile(name) ; /* Read .dtcalcrc file from current directory. */
}
void
show_display(MPval)
int *MPval ;
{
if (!v->error)
{
STRCPY(v->display, make_number(MPval, TRUE)) ;
set_item(DISPLAYITEM, v->display) ;
}
}
void
usage(progname)
char *progname ;
{
FPRINTF(stderr, ustrs[(int) USAGE1], PATCHLEVEL) ;
FPRINTF(stderr, "%s", ustrs[(int) USAGE2]) ;
FPRINTF(stderr, "%s", ustrs[(int) USAGE3]) ;
exit(1) ;
}
void
write_rcfile(mtype, exists, cfno, val, comment)
enum menu_type mtype ;
int exists, cfno ;
char *val, *comment ;
{
char *home ; /* Pathname for users home directory. */
char pathname[MAXPATHLEN] ; /* Current working directory. */
char rcname[MAXPATHLEN] ; /* Full name of users .dtcalcrc file. */
char str[MAXLINE] ; /* Temporary buffer. */
char sval[3] ; /* Used for string comparisons. */
char tmp_filename[MAXLINE] ; /* Used to construct temp filename. */
int rcexists ; /* Set to 1, if .dtcalcrc file exists. */
FILE *rcfd ; /* File descriptor for .dtcalcrc file. */
FILE *tmpfd ; /* File descriptor for new temp .dtcalcrc. */
struct passwd *entry ; /* The user's /etc/passwd entry. */
rcexists = 0 ;
SPRINTF(rcname, "%s/%s", getcwd(pathname, MAXPATHLEN), RCNAME) ;
if (access(rcname, F_OK) == 0) rcexists = 1 ;
else
{
if ((home = getenv("HOME")) == NULL)
{
if ((entry = getpwuid(getuid())) == NULL) return ;
home = entry->pw_dir ;
}
SPRINTF(rcname, "%s/%s", home, RCNAME) ;
if (access(rcname, F_OK) == 0) rcexists = 1 ;
}
STRCPY(tmp_filename, "/tmp/.dtcalcrcXXXXXX") ;
MKTEMP(tmp_filename) ;
if ((tmpfd = fopen(tmp_filename, "w+")) == NULL) return ;
if (rcexists)
{
rcfd = fopen(rcname, "r") ;
SPRINTF(sval, " %1d", cfno) ;
while (fgets(str, MAXLINE, rcfd))
{
if (exists)
{
switch (mtype)
{
case M_CON : sval[0] = 'c' ;
if (!strncmp(str, sval, 2)) FPUTS("#", tmpfd) ;
sval[0] = 'C' ;
if (!strncmp(str, sval, 2)) FPUTS("#", tmpfd) ;
break ;
case M_FUN : sval[0] = 'f' ;
if (!strncmp(str, sval, 2)) FPUTS("#", tmpfd) ;
sval[0] = 'F' ;
if (!strncmp(str, sval, 2)) FPUTS("#", tmpfd) ;
}
}
FPRINTF(tmpfd, "%s", str) ;
}
FCLOSE(rcfd) ;
}
switch (mtype)
{
case M_CON : FPRINTF(tmpfd, "\nC%1d %s %s\n", cfno, val, comment) ;
break ;
case M_FUN :
if(strcmp(val, "") != 0)
FPRINTF(tmpfd, "\nF%1d %s %s\n", cfno, val, comment) ;
}
UNLINK(rcname) ;
rcfd = fopen(rcname, "w") ;
REWIND(tmpfd) ;
while (fgets(str, MAXLINE, tmpfd)) FPRINTF(rcfd, "%s", str) ;
FCLOSE(rcfd) ;
FCLOSE(tmpfd);
UNLINK(tmp_filename) ;
}
void
write_resources(filename)
char *filename;
{
char regval[5] ;
char intval[5] ;
int i;
int MPtemp[MP_SIZE];
SPRINTF(intval, "%d", v->accuracy) ;
put_resource(R_ACCURACY, intval) ;
put_resource(R_DISPLAYED, v->display) ;
put_resource(R_BASE, base_str[(int) v->base]) ;
put_resource(R_DISPLAY, dtype_str[(int) v->dtype]) ;
put_resource(R_MODE, mode_str[(int) v->modetype]) ;
put_resource(R_TRIG, ttype_str[(int) v->ttype]) ;
put_resource(R_REGS, set_bool(v->rstate == TRUE)) ;
put_resource(R_REG0, make_number(v->MPmvals[0], FALSE)) ;
put_resource(R_REG1, make_number(v->MPmvals[1], FALSE)) ;
put_resource(R_REG2, make_number(v->MPmvals[2], FALSE)) ;
put_resource(R_REG3, make_number(v->MPmvals[3], FALSE)) ;
put_resource(R_REG4, make_number(v->MPmvals[4], FALSE)) ;
put_resource(R_REG5, make_number(v->MPmvals[5], FALSE)) ;
put_resource(R_REG6, make_number(v->MPmvals[6], FALSE)) ;
put_resource(R_REG7, make_number(v->MPmvals[7], FALSE)) ;
put_resource(R_REG8, make_number(v->MPmvals[8], FALSE)) ;
put_resource(R_REG9, make_number(v->MPmvals[9], FALSE)) ;
mpcdm(&(v->MPfvals[0]), MPtemp);
put_resource(R_FREG0, make_number(MPtemp, FALSE)) ;
mpcdm(&(v->MPfvals[1]), MPtemp);
put_resource(R_FREG1, make_number(MPtemp, FALSE)) ;
mpcdm(&(v->MPfvals[2]), MPtemp);
put_resource(R_FREG2, make_number(MPtemp, FALSE)) ;
mpcdm(&(v->MPfvals[3]), MPtemp);
put_resource(R_FREG3, make_number(MPtemp, FALSE)) ;
mpcdm(&(v->MPfvals[4]), MPtemp);
put_resource(R_FREG4, make_number(MPtemp, FALSE)) ;
mpcdm(&(v->MPfvals[5]), MPtemp);
put_resource(R_FREG5, make_number(MPtemp, FALSE)) ;
save_resources(filename) ;
}
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