// $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/c_datd/bstrfunc.c,v 1.6 2001/07/29 07:18:22 dtashley Exp $
//--------------------------------------------------------------------------------
//Copyright 2001 David T. Ashley
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// 17. Interpretation of Sections 15 and 16.
//
// If the disclaimer of warranty and limitation of liability provided
//above cannot be given local legal effect according to their terms,
//reviewing courts shall apply local law that most closely approximates
//an absolute waiver of all civil liability in connection with the
//Program, unless a warranty or assumption of liability accompanies a
//copy of the Program in return for a fee.
//
// END OF TERMS AND CONDITIONS
//
// How to Apply These Terms to Your New Programs
//
// If you develop a new program, and you want it to be of the greatest
//possible use to the public, the best way to achieve this is to make it
//free software which everyone can redistribute and change under these terms.
//
// To do so, attach the following notices to the program. It is safest
//to attach them to the start of each source file to most effectively
//state the exclusion of warranty; and each file should have at least
//the "copyright" line and a pointer to where the full notice is found.
//
//
// Copyright (C)
//
// 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 3 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, see .
//
//Also add information on how to contact you by electronic and paper mail.
//
// If the program does terminal interaction, make it output a short
//notice like this when it starts in an interactive mode:
//
// Copyright (C)
// This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
// This is free software, and you are welcome to redistribute it
// under certain conditions; type `show c' for details.
//
//The hypothetical commands `show w' and `show c' should show the appropriate
//parts of the General Public License. Of course, your program's commands
//might be different; for a GUI interface, you would use an "about box".
//
// You should also get your employer (if you work as a programmer) or school,
//if any, to sign a "copyright disclaimer" for the program, if necessary.
//For more information on this, and how to apply and follow the GNU GPL, see
//.
//
// The GNU General Public License does not permit incorporating your program
//into proprietary programs. If your program is a subroutine library, you
//may consider it more useful to permit linking proprietary applications with
//the library. If this is what you want to do, use the GNU Lesser General
//Public License instead of this License. But first, please read
//.
//-------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------
#define MODULE_BSTRFUNC
#include
#include
#include
#include
#include
#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE)
#include "ccmalloc.h"
#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE)
#include "tclalloc.h"
#else
/* Do nothing. */
#endif
#include "bstrfunc.h"
#include "ccmalloc.h"
#include "charfunc.h"
/******************************************************************/
/*** CUSTOM ALLOCATION FUNCTIONS *******************************/
/******************************************************************/
//We need wrappers because this software module will be used in
//more than one kind of software. This could also be done with
//macros, but I like function wrappers better because there
//is less ambiguity and more ability to collect information if
//something goes wrong.
//
//07/24/01: Visual inspection only. Function deemed too
//simple for unit testing.
void *BSTRFUNC_malloc( size_t size )
{
#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE)
return(CCMALLOC_malloc(size));
#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE)
return(TclpAlloc(size));
#else
return(malloc(size));
#endif
}
//07/24/01: Visual inspection only. Function deemed too
//simple for unit testing.
void *BSTRFUNC_calloc( size_t num, size_t size )
{
#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE)
return(CCMALLOC_calloc(num, size));
#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE)
return(TclpCalloc(num, size));
#else
return(calloc(num, size));
#endif
}
//07/24/01: Visual inspection only. Function deemed too
//simple for unit testing.
void *BSTRFUNC_realloc( void *memblock, size_t size )
{
#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE)
return(CCMALLOC_realloc(memblock, size));
#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE)
return(TclpRealloc(memblock, size));
#else
return(realloc(memblock, size));
#endif
}
//07/24/01: Visual inspection only. Function deemed too
//simple for unit testing.
void BSTRFUNC_free( void *memblock )
{
#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE)
CCMALLOC_free(memblock);
#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE)
TclpFree(memblock);
#else
free(memblock);
#endif
}
//07/18/01: Visual inspection and unit tests passed.
int BSTRFUNC_is_uint_wo_commas(const char *arg)
{
assert(arg != NULL);
if (!*arg)
return(0);
if (arg[0] == '0')
{
if (arg[1])
{
return(0);
}
else
{
return(1);
}
}
else
{
while (*arg)
{
if ((*arg < '0') || (*arg > '9'))
return(0);
arg++;
}
return(1);
}
}
//07/28/01: Visual inspection only.
int BSTRFUNC_is_sint_wo_commas(const char *arg)
{
//This function will use its unsigned counterpart.
//
//Eyeball the input parameter.
assert(arg != NULL);
if (!*arg) //Empty string ain't an integer.
return(0);
if (*arg == '-')
{
if (arg[1] == '0')
return(0);
else
return(BSTRFUNC_is_uint_wo_commas(arg+1));
}
else
{
return(BSTRFUNC_is_uint_wo_commas(arg));
}
}
//07/18/01: Visual inspection and unit tests passed.
int BSTRFUNC_is_uint_w_commas(const char *arg)
{
int state;
//Input pointer cannot be NULL.
assert(arg != NULL);
//Can't be empty string.
if (!*arg)
return(0);
//If the first digit is 0, that must be the only digit.
if (arg[0] == '0')
{
if (arg[1])
{
return(0);
}
else
{
return(1);
}
}
//The remainder of this function is an efficient state
//machine recognizer. The state machine involved is
//pretty simple and was drawn and discarded on a sheet
//of paper. It doesn't need to be filed because it is
//so basic.
if ((*arg < '0') || (*arg > '9'))
return(0);
state = 0;
arg++;
while(1)
{
switch (state)
{
case 0 : if (!*arg)
{
return(1);
}
else if (*arg == ',')
{
state = 3;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
state = 1;
}
else
{
return(0);
}
break;
case 1 : if (!*arg)
{
return(1);
}
else if (*arg == ',')
{
state = 3;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
state = 2;
}
else
{
return(0);
}
break;
case 2 : if (!*arg)
{
return(1);
}
else if (*arg == ',')
{
state = 3;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
return(0);
}
else
{
return(0);
}
break;
case 3 : if (!*arg)
{
return(0);
}
else if (*arg == ',')
{
return(0);
}
else if ((*arg >= '0') && (*arg <= '9'))
{
state = 4;
}
else
{
return(0);
}
break;
case 4 : if (!*arg)
{
return(0);
}
else if (*arg == ',')
{
return(0);
}
else if ((*arg >= '0') && (*arg <= '9'))
{
state = 5;
}
else
{
return(0);
}
break;
case 5 : if (!*arg)
{
return(0);
}
else if (*arg == ',')
{
return(0);
}
else if ((*arg >= '0') && (*arg <= '9'))
{
state = 6;
}
else
{
return(0);
}
break;
case 6 : if (!*arg)
{
return(1);
}
else if (*arg == ',')
{
state = 3;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
return(0);
}
else
{
return(0);
}
break;
default:
abort();
break;
}
arg++;
}
//We should never get here.
}
//07/28/01: Visual inspection only.
int BSTRFUNC_is_sint_w_commas(const char *arg)
{
//This function will use its unsigned counterpart.
//
//Eyeball the input parameter.
assert(arg != NULL);
if (!*arg) //Empty string ain't an integer.
return(0);
if (*arg == '-')
{
if (arg[1] == '0')
return(0);
else
return(BSTRFUNC_is_uint_w_commas(arg+1));
}
else
{
return(BSTRFUNC_is_uint_w_commas(arg));
}
}
//07/18/01: Visual verification only due to simplicity.
void BSTRFUNC_str_reverse(char *s)
{
int l, begin, end;
char temp;
assert(s != NULL);
l = strlen(s);
begin = 0;
end = l-1;
while ((end-begin) >=1)
{
temp = s[begin];
s[begin] = s[end];
s[end] = temp;
begin++;
end--;
}
}
void BSTRFUNC_parse_gen_sci_not_num(const char *s,
int *failure,
char *mant_sign,
size_t *mant_bdp,
size_t *mant_bdp_len,
size_t *mant_adp,
size_t *mant_adp_len,
char *exp_sign,
size_t *exp,
size_t *exp_len)
{
//For the parameters that can be NULL, these are the
//local copies we keep. We will assign these back to
//the caller's area when appropriate before we leave.
char i_mant_sign, i_exp_sign;
size_t i_mant_bdp, i_mant_bdp_len, i_mant_adp, i_mant_adp_len,
i_exp, i_exp_len;
size_t i;
int state;
const char *arg;
//Check out the parameters that can't be NULL.
assert(s != NULL);
assert(failure != NULL);
//Initialize all variables to defaults.
*failure = 0 ;
i_mant_sign = 'N';
i_exp_sign = 'N';
i_mant_bdp = 0 ;
i_mant_bdp_len = 0 ;
i_mant_adp = 0 ;
i_mant_adp_len = 0 ;
i_exp = 0 ;
i_exp_len = 0 ;
i = 0 ;
state = 0 ;
//Process the string. This is a big 10-state state
//machine. Because of the complexity, I've included
//some state definitions as well in the comments.
arg = s;
while(1)
{
switch (state)
{
//Initial state from which we start processing.
case 0 : if (!*arg)
{
//The string is empty. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
else if (*arg == '-')
{
//Leading - on the number. Fine.
i_mant_sign = '-';
state = 1;
}
else if (*arg == '+')
{
//Leading + on the number. Fine.
i_mant_sign = '+';
state = 2;
}
else if (*arg == '.')
{
//Leading . on the number. Fine.
state = 5;
}
else if (*arg == '0')
{
i_mant_bdp = arg - s;
state = 4;
}
else if ((*arg >= '1') && (*arg <= '9'))
{
i_mant_bdp = arg - s;
state = 3;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//The leading character of the string was '-'. We
//are processing a negative number.
case 1 : if (!*arg)
{
//The string is empty. This is not OK because
//it means the string was "-".
//Error out.
*failure = 1;
goto term_seq;
}
else if (*arg == '.')
{
//We have a - followed by a decimal point.
//This is impolite form, but will accept
//it as a number.
state = 5;
}
else if (*arg == '0')
{
//We have a '-' followed by a '0'.
//Seems reasonable.
i_mant_bdp = arg - s;
state = 4;
}
else if ((*arg >= '1') && (*arg <= '9'))
{
//We have a '-' followed by a non-zero
//digit. Seems reasonable.
i_mant_bdp = arg - s;
state = 3;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//The leading character of the string was '+'. We
//are processing an explicitly declared positive number.
case 2 : if (!*arg)
{
//The string is empty. This is not OK because
//it means the string was "+".
//Error out.
*failure = 1;
goto term_seq;
}
else if (*arg == '.')
{
//We have a + followed by a decimal point.
//This is impolite form, but will accept
//it as a number.
state = 5;
}
else if (*arg == '0')
{
//We have a '-' followed by a '0'.
//Seems reasonable.
i_mant_bdp = arg - s;
state = 4;
}
else if ((*arg >= '1') && (*arg <= '9'))
{
//We have a '+' followed by a non-zero
//digit. Seems reasonable.
i_mant_bdp = arg - s;
state = 3;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//We've encountered a non-zero digit either first as part
//of the string or later after + or -. We are processing
//a mantissa that does not begin with "0".
case 3 : if (!*arg)
{
//We've reached the end of the string. This is
//fine because we have a simple integer of the
//form NNNN, +NNNN, or -NNNN. No problem with that.
i_mant_bdp_len = (arg - s) - i_mant_bdp;
*failure = 0;
goto term_seq;
}
else if (*arg == '.')
{
//Number followed by decimal point. This
//means the mantissa is terminating. No issue.
i_mant_bdp_len = (arg - s) - i_mant_bdp;
state = 5;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Yet more digits. Seems reasonable.
//The assignment isn't necessary, but it
//is aesthetic.
state = 3;
}
else if ((*arg == 'e') || (*arg == 'E'))
{
//Beginning of an exponent. This again
//means the mantissa is terminating. No issue.
i_mant_bdp_len = (arg - s) - i_mant_bdp;
state = 6;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//We're processing a mantissa that begins with zero. There
//is only one zero allowed before the decimal point.
case 4 : if (!*arg)
{
//We've reached the end of the string. This is
//fine because it means we have zero. I'm going
//to be unusually permissive and allow -0 and +0,
//which isn't traditional.
i_mant_bdp_len = (arg - s) - i_mant_bdp;
*failure = 0;
goto term_seq;
}
else if (*arg == '.')
{
//Zero followed by decimal point. This
//means the mantissa is terminating. No issue.
i_mant_bdp_len = (arg - s) - i_mant_bdp;
state = 5;
}
else if ((*arg == 'e') || (*arg == 'E'))
{
//Beginning of an exponent. This again
//means the mantissa is terminating. No issue.
i_mant_bdp_len = (arg - s) - i_mant_bdp;
state = 6;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//A decimal point has been found in the string.
//This marks the end of the mantissa, for sure.
case 5 : if (!*arg)
{
//We've reached the end of the string. There are
//two possibilities here. Either there have been no
//digits before the decimal points, which is a no-no,
//or there have been digits, which is fine.
if (i_mant_bdp_len)
{
*failure = 0;
goto term_seq;
}
else
{
*failure = 1;
goto term_seq;
}
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Digits after the decimal point. Need to
//begin the portion after the decimal point.
i_mant_adp = arg - s;
state = 10;
}
else if ((*arg == 'e') || (*arg == 'E'))
{
//Beginning of an exponent. This means
//that have no digits after the decimal point.
//This is OK.
state = 6;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//The exponent has begin.
case 6: if (!*arg)
{
//The string is empty. This is not OK
//because it would mean an E with nothing
//following it. This is a no-no.
//Error out.
*failure = 1;
goto term_seq;
}
else if (*arg == '-')
{
//Leading - on the exponent. Fine.
i_exp_sign = '-';
state = 8;
}
else if (*arg == '+')
{
//Leading + on the exponent. Fine.
i_exp_sign = '+';
state = 7;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Beginning the digits of the exponent. Fine.
i_exp = arg - s;
state = 9;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//Had a + sign before the exponent. Now expecting digits.
case 7: if (!*arg)
{
//The string is empty. This is not OK
//because it would mean an E+ with nothing
//following it. This is a no-no.
//Error out.
*failure = 1;
goto term_seq;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Beginning the digits of the exponent. Fine.
i_exp = arg - s;
state = 9;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//Had a - sign before the exponent. Now expecting digits.
case 8: if (!*arg)
{
//The string is empty. This is not OK
//because it would mean an E- with nothing
//following it. This is a no-no.
//Error out.
*failure = 1;
goto term_seq;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Beginning the digits of the exponent. Fine.
i_exp = arg - s;
state = 9;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//Had one digit of exponent. Am processing remaining ones.
case 9 : if (!*arg)
{
//We've reached the end of the string. This is
//fine because we have an exponent of the
//form NNNN, +NNNN, or -NNNN. No problem with that.
i_exp_len = (arg - s) - i_exp;
*failure = 0;
goto term_seq;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Yet more digits. Seems reasonable.
//The assignment isn't necessary, but it
//is aesthetic.
state = 9;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
//Processing digits after decimal point. This state is out
//of sequence because added it after on diagram.
case 10: if (!*arg)
{
//We've reached the end of the string. This is
//fine.
i_mant_adp_len = (arg - s) - i_mant_adp;
*failure = 0;
goto term_seq;
}
else if ((*arg >= '0') && (*arg <= '9'))
{
//Yet more digits. Seems reasonable.
//The assignment isn't necessary, but it
//is aesthetic.
state = 10;
}
else if ((*arg == 'e') || (*arg == 'E'))
{
//Beginning of an exponent. This terminates
//the digits after the decimal point.
i_mant_adp_len = (arg - s) - i_mant_adp;
state = 6;
}
else
{
//Unidentifiable crap. This is not OK.
//Error out.
*failure = 1;
goto term_seq;
}
break;
default:
abort();
break;
}
arg++;
}
//This is the setup for returning to the caller. We can
//only fill in those data pointer for the caller that are
//not NULL.
term_seq:
if (mant_sign)
*mant_sign = i_mant_sign;
if (mant_bdp)
*mant_bdp = i_mant_bdp;
if (mant_bdp_len)
*mant_bdp_len = i_mant_bdp_len;
if (mant_adp)
*mant_adp = i_mant_adp;
if (mant_adp_len)
*mant_adp_len = i_mant_adp_len;
if (exp_sign)
*exp_sign = i_exp_sign;
if (exp)
*exp = i_exp;
if (exp_len)
*exp_len = i_exp_len;
}
//07/18/01: Has passed visual verification plus unit tests.
void BSTRFUNC_commanate(char *s)
{
int l;
int ncommas;
char *putpt, *getpt;
int ndigits;
//Adds commas to a numeric string. The space
//must exist in the area passed.
assert(s);
//If the leading character on the string is a
//'-', bump the pointer. Then everything
//else applies as for an unsigned.
if (*s == '-')
s++;
//Be sure the string currently meets the syntax for
//a signed integer. If not, don't even touch it.
if (!BSTRFUNC_is_uint_wo_commas(s))
return;
//Get the length of the current string.
l = strlen(s);
//Let's agree, just in case something slipped through
//the cracks, that zero length strings are not of
//interest to us.
if (l==0)
return;
//The number of commas to add is precisely
//(N-1) div 3.
if (l==0)
ncommas = 0;
else
ncommas = (l-1)/3;
//Walk through the string, adding commas.
getpt = s + l - 1;
putpt = s + l + ncommas;
*putpt = 0; //Write the zero terminator.
putpt--;
ndigits = 0;
while ((putpt > s) && (getpt > s))
{
*putpt = *getpt;
putpt--;
getpt--;
ndigits++;
if (((ndigits % 3) == 0) && (putpt != s))
{
*putpt = ',';
putpt--;
}
assert((putpt >= s) && (getpt>=s));
}
}
//07/28/01: Visual inspection only.
void BSTRFUNC_decommanate(char *s)
{
char *src, *dst;
assert(s != NULL);
src = dst = s;
while(1)
{
if (!*src)
{
*dst = 0;
break;
}
else if (*src == ',')
{
src++;
}
else
{
*dst = *src;
src++;
dst++;
}
}
}
void BSTRFUNC_parse_str_to_uint32(const char *s,
unsigned int *rv,
int *error)
{
unsigned _int64 temp;
int digval;
//Eyeball the input arguments.
assert(s != NULL);
assert(error != NULL);
//Start off believing there is no error.
*error = 0;
//The string has to parse out as an unsigned integer or an
//unsigned integer with commas, or we won't touch it.
if (!BSTRFUNC_is_uint_wo_commas(s) && !BSTRFUNC_is_uint_w_commas(s))
{
*error = 1;
return;
}
//OK, we know we have an unsigned integer, either without commas,
//or with properly placed commas. Our only worry now is that it
//is of a size that will fit in 32 bits. The way we can deal with
//this is to format it into 64 bits and watch for overflow.
temp = 0;
while (*s)
{
digval = CHARFUNC_digit_to_val(*s);
if (digval >= 0)
{
temp *= 10;
temp += digval;
if ((temp >> 32) & 0xFFFFFFFF)
{
//We've had an overflow.
*error = 1;
return;
}
}
s++;
}
*rv = (unsigned int)temp;
}
const char *BSTRFUNC_cvcinfo(void)
{
return("$Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/c_datd/bstrfunc.c,v 1.6 2001/07/29 07:18:22 dtashley Exp $");
}
const char *BSTRFUNC_hvcinfo(void)
{
return(BSTRFUNC_H_VERSION);
}
//**************************************************************************
// $Log: bstrfunc.c,v $
// Revision 1.6 2001/07/29 07:18:22 dtashley
// Completion of ARBINT INTFAC extension.
//
// Revision 1.5 2001/07/25 23:40:02 dtashley
// Completion of INTFAC program, many changes to handling of large
// integers.
//
// Revision 1.4 2001/07/23 06:12:49 dtashley
// Completion of INTFAC command-line utility.
//
// Revision 1.3 2001/07/19 20:06:03 dtashley
// Division finished. String formatting functions underway. Safety check-in.
//
// Revision 1.2 2001/07/13 21:02:20 dtashley
// Version control reporting changes.
//
// Revision 1.1 2001/07/13 19:05:23 dtashley
// Files added.
//
//**************************************************************************
// End of BSTRFUNC.C.