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dashley |
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//$Header$ |
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//------------------------------------------------------------------------------------------------- |
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//This file is part of "David T. Ashley's Shared Source Code", a set of shared components |
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//integrated into many of David T. Ashley's projects. |
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//------------------------------------------------------------------------------------------------- |
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//This source code and any program in which it is compiled/used is provided under the MIT License, |
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//reproduced below. |
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//------------------------------------------------------------------------------------------------- |
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//Permission is hereby granted, free of charge, to any person obtaining a copy of |
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//this software and associated documentation files(the "Software"), to deal in the |
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//Software without restriction, including without limitation the rights to use, |
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//copy, modify, merge, publish, distribute, sublicense, and / or sell copies of the |
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//Software, and to permit persons to whom the Software is furnished to do so, |
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//subject to the following conditions : |
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// |
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//The above copyright notice and this permission notice shall be included in all |
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//copies or substantial portions of the Software. |
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// |
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE |
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//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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//SOFTWARE. |
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//------------------------------------------------------------------------------------------------- |
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#define MODULE_BSTRFUNC |
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#include <assert.h> |
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#include <malloc.h> |
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#include <process.h> |
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#include <stddef.h> |
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#include <string.h> |
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#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE) |
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#include "ccmalloc.h" |
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#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE) |
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#include "tclalloc.h" |
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#else |
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/* Do nothing. */ |
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#endif |
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#include "bstrfunc.h" |
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#include "ccmalloc.h" |
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#include "charfunc.h" |
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/******************************************************************/ |
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/*** CUSTOM ALLOCATION FUNCTIONS *******************************/ |
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/******************************************************************/ |
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//We need wrappers because this software module will be used in |
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//more than one kind of software. This could also be done with |
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//macros, but I like function wrappers better because there |
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//is less ambiguity and more ability to collect information if |
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//something goes wrong. |
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// |
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//07/24/01: Visual inspection only. Function deemed too |
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//simple for unit testing. |
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void *BSTRFUNC_malloc( size_t size ) |
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{ |
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#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE) |
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return(CCMALLOC_malloc(size)); |
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#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE) |
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return(TclpAlloc(size)); |
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#else |
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return(malloc(size)); |
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#endif |
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} |
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//07/24/01: Visual inspection only. Function deemed too |
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//simple for unit testing. |
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void *BSTRFUNC_calloc( size_t num, size_t size ) |
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{ |
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#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE) |
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return(CCMALLOC_calloc(num, size)); |
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#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE) |
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return(TclpCalloc(num, size)); |
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#else |
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return(calloc(num, size)); |
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#endif |
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} |
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//07/24/01: Visual inspection only. Function deemed too |
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//simple for unit testing. |
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void *BSTRFUNC_realloc( void *memblock, size_t size ) |
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{ |
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#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE) |
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return(CCMALLOC_realloc(memblock, size)); |
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#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE) |
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return(TclpRealloc(memblock, size)); |
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#else |
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return(realloc(memblock, size)); |
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#endif |
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} |
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//07/24/01: Visual inspection only. Function deemed too |
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//simple for unit testing. |
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void BSTRFUNC_free( void *memblock ) |
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{ |
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#if defined(APP_TYPE_SIMPLE_DOS_CONSOLE) |
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CCMALLOC_free(memblock); |
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#elif defined(APP_TYPE_IJUSCRIPTER_IJUCONSOLE) |
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TclpFree(memblock); |
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#else |
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free(memblock); |
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#endif |
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} |
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//07/18/01: Visual inspection and unit tests passed. |
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int BSTRFUNC_is_uint_wo_commas(const char *arg) |
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{ |
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assert(arg != NULL); |
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if (!*arg) |
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return(0); |
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if (arg[0] == '0') |
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{ |
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if (arg[1]) |
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{ |
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return(0); |
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} |
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else |
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{ |
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return(1); |
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} |
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} |
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else |
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{ |
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while (*arg) |
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{ |
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if ((*arg < '0') || (*arg > '9')) |
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return(0); |
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arg++; |
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} |
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return(1); |
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} |
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} |
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//07/28/01: Visual inspection only. |
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int BSTRFUNC_is_sint_wo_commas(const char *arg) |
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{ |
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//This function will use its unsigned counterpart. |
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// |
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//Eyeball the input parameter. |
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assert(arg != NULL); |
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if (!*arg) //Empty string ain't an integer. |
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return(0); |
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if (*arg == '-') |
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{ |
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if (arg[1] == '0') |
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return(0); |
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else |
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return(BSTRFUNC_is_uint_wo_commas(arg+1)); |
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} |
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else |
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{ |
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return(BSTRFUNC_is_uint_wo_commas(arg)); |
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} |
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} |
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//07/18/01: Visual inspection and unit tests passed. |
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int BSTRFUNC_is_uint_w_commas(const char *arg) |
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{ |
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int state; |
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//Input pointer cannot be NULL. |
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assert(arg != NULL); |
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//Can't be empty string. |
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if (!*arg) |
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return(0); |
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//If the first digit is 0, that must be the only digit. |
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if (arg[0] == '0') |
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{ |
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if (arg[1]) |
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{ |
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return(0); |
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} |
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else |
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{ |
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return(1); |
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} |
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} |
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//The remainder of this function is an efficient state |
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//machine recognizer. The state machine involved is |
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//pretty simple and was drawn and discarded on a sheet |
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//of paper. It doesn't need to be filed because it is |
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//so basic. |
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if ((*arg < '0') || (*arg > '9')) |
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return(0); |
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state = 0; |
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arg++; |
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while(1) |
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{ |
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switch (state) |
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{ |
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case 0 : if (!*arg) |
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{ |
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return(1); |
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} |
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else if (*arg == ',') |
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{ |
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state = 3; |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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state = 1; |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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case 1 : if (!*arg) |
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{ |
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return(1); |
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} |
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else if (*arg == ',') |
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{ |
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state = 3; |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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state = 2; |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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case 2 : if (!*arg) |
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{ |
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return(1); |
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} |
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else if (*arg == ',') |
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{ |
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state = 3; |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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return(0); |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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case 3 : if (!*arg) |
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{ |
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return(0); |
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} |
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else if (*arg == ',') |
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{ |
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return(0); |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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state = 4; |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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case 4 : if (!*arg) |
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{ |
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return(0); |
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} |
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else if (*arg == ',') |
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{ |
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return(0); |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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state = 5; |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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case 5 : if (!*arg) |
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{ |
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return(0); |
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} |
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else if (*arg == ',') |
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{ |
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return(0); |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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state = 6; |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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case 6 : if (!*arg) |
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{ |
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return(1); |
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} |
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else if (*arg == ',') |
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{ |
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state = 3; |
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} |
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else if ((*arg >= '0') && (*arg <= '9')) |
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{ |
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return(0); |
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} |
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else |
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{ |
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return(0); |
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} |
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break; |
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default: |
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abort(); |
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break; |
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} |
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arg++; |
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} |
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//We should never get here. |
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} |
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//07/28/01: Visual inspection only. |
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int BSTRFUNC_is_sint_w_commas(const char *arg) |
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{ |
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//This function will use its unsigned counterpart. |
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// |
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//Eyeball the input parameter. |
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assert(arg != NULL); |
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if (!*arg) //Empty string ain't an integer. |
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return(0); |
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if (*arg == '-') |
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{ |
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if (arg[1] == '0') |
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return(0); |
358 |
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else |
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return(BSTRFUNC_is_uint_w_commas(arg+1)); |
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} |
361 |
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else |
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{ |
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return(BSTRFUNC_is_uint_w_commas(arg)); |
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} |
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} |
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//07/18/01: Visual verification only due to simplicity. |
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void BSTRFUNC_str_reverse(char *s) |
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{ |
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int l, begin, end; |
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char temp; |
373 |
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assert(s != NULL); |
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l = strlen(s); |
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begin = 0; |
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end = l-1; |
380 |
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while ((end-begin) >=1) |
382 |
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{ |
383 |
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temp = s[begin]; |
384 |
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s[begin] = s[end]; |
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s[end] = temp; |
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begin++; |
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end--; |
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} |
389 |
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} |
390 |
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391 |
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void BSTRFUNC_parse_gen_sci_not_num(const char *s, |
393 |
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int *failure, |
394 |
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char *mant_sign, |
395 |
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size_t *mant_bdp, |
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size_t *mant_bdp_len, |
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size_t *mant_adp, |
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size_t *mant_adp_len, |
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char *exp_sign, |
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size_t *exp, |
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size_t *exp_len) |
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{ |
403 |
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//For the parameters that can be NULL, these are the |
404 |
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//local copies we keep. We will assign these back to |
405 |
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//the caller's area when appropriate before we leave. |
406 |
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char i_mant_sign, i_exp_sign; |
407 |
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size_t i_mant_bdp, i_mant_bdp_len, i_mant_adp, i_mant_adp_len, |
408 |
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i_exp, i_exp_len; |
409 |
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size_t i; |
410 |
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int state; |
411 |
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const char *arg; |
412 |
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413 |
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//Check out the parameters that can't be NULL. |
414 |
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assert(s != NULL); |
415 |
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assert(failure != NULL); |
416 |
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417 |
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//Initialize all variables to defaults. |
418 |
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*failure = 0 ; |
419 |
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i_mant_sign = 'N'; |
420 |
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i_exp_sign = 'N'; |
421 |
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i_mant_bdp = 0 ; |
422 |
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i_mant_bdp_len = 0 ; |
423 |
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i_mant_adp = 0 ; |
424 |
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i_mant_adp_len = 0 ; |
425 |
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i_exp = 0 ; |
426 |
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i_exp_len = 0 ; |
427 |
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i = 0 ; |
428 |
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state = 0 ; |
429 |
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|
430 |
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//Process the string. This is a big 10-state state |
431 |
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//machine. Because of the complexity, I've included |
432 |
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//some state definitions as well in the comments. |
433 |
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arg = s; |
434 |
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|
435 |
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while(1) |
436 |
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{ |
437 |
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switch (state) |
438 |
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{ |
439 |
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//Initial state from which we start processing. |
440 |
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case 0 : if (!*arg) |
441 |
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{ |
442 |
|
|
//The string is empty. This is not OK. |
443 |
|
|
//Error out. |
444 |
|
|
*failure = 1; |
445 |
|
|
goto term_seq; |
446 |
|
|
} |
447 |
|
|
else if (*arg == '-') |
448 |
|
|
{ |
449 |
|
|
//Leading - on the number. Fine. |
450 |
|
|
i_mant_sign = '-'; |
451 |
|
|
state = 1; |
452 |
|
|
} |
453 |
|
|
else if (*arg == '+') |
454 |
|
|
{ |
455 |
|
|
//Leading + on the number. Fine. |
456 |
|
|
i_mant_sign = '+'; |
457 |
|
|
state = 2; |
458 |
|
|
} |
459 |
|
|
else if (*arg == '.') |
460 |
|
|
{ |
461 |
|
|
//Leading . on the number. Fine. |
462 |
|
|
state = 5; |
463 |
|
|
} |
464 |
|
|
else if (*arg == '0') |
465 |
|
|
{ |
466 |
|
|
i_mant_bdp = arg - s; |
467 |
|
|
state = 4; |
468 |
|
|
} |
469 |
|
|
else if ((*arg >= '1') && (*arg <= '9')) |
470 |
|
|
{ |
471 |
|
|
i_mant_bdp = arg - s; |
472 |
|
|
state = 3; |
473 |
|
|
} |
474 |
|
|
else |
475 |
|
|
{ |
476 |
|
|
//Unidentifiable crap. This is not OK. |
477 |
|
|
//Error out. |
478 |
|
|
*failure = 1; |
479 |
|
|
goto term_seq; |
480 |
|
|
} |
481 |
|
|
break; |
482 |
|
|
//The leading character of the string was '-'. We |
483 |
|
|
//are processing a negative number. |
484 |
|
|
case 1 : if (!*arg) |
485 |
|
|
{ |
486 |
|
|
//The string is empty. This is not OK because |
487 |
|
|
//it means the string was "-". |
488 |
|
|
//Error out. |
489 |
|
|
*failure = 1; |
490 |
|
|
goto term_seq; |
491 |
|
|
} |
492 |
|
|
else if (*arg == '.') |
493 |
|
|
{ |
494 |
|
|
//We have a - followed by a decimal point. |
495 |
|
|
//This is impolite form, but will accept |
496 |
|
|
//it as a number. |
497 |
|
|
state = 5; |
498 |
|
|
} |
499 |
|
|
else if (*arg == '0') |
500 |
|
|
{ |
501 |
|
|
//We have a '-' followed by a '0'. |
502 |
|
|
//Seems reasonable. |
503 |
|
|
i_mant_bdp = arg - s; |
504 |
|
|
state = 4; |
505 |
|
|
} |
506 |
|
|
else if ((*arg >= '1') && (*arg <= '9')) |
507 |
|
|
{ |
508 |
|
|
//We have a '-' followed by a non-zero |
509 |
|
|
//digit. Seems reasonable. |
510 |
|
|
i_mant_bdp = arg - s; |
511 |
|
|
state = 3; |
512 |
|
|
} |
513 |
|
|
else |
514 |
|
|
{ |
515 |
|
|
//Unidentifiable crap. This is not OK. |
516 |
|
|
//Error out. |
517 |
|
|
*failure = 1; |
518 |
|
|
goto term_seq; |
519 |
|
|
} |
520 |
|
|
break; |
521 |
|
|
//The leading character of the string was '+'. We |
522 |
|
|
//are processing an explicitly declared positive number. |
523 |
|
|
case 2 : if (!*arg) |
524 |
|
|
{ |
525 |
|
|
//The string is empty. This is not OK because |
526 |
|
|
//it means the string was "+". |
527 |
|
|
//Error out. |
528 |
|
|
*failure = 1; |
529 |
|
|
goto term_seq; |
530 |
|
|
} |
531 |
|
|
else if (*arg == '.') |
532 |
|
|
{ |
533 |
|
|
//We have a + followed by a decimal point. |
534 |
|
|
//This is impolite form, but will accept |
535 |
|
|
//it as a number. |
536 |
|
|
state = 5; |
537 |
|
|
} |
538 |
|
|
else if (*arg == '0') |
539 |
|
|
{ |
540 |
|
|
//We have a '-' followed by a '0'. |
541 |
|
|
//Seems reasonable. |
542 |
|
|
i_mant_bdp = arg - s; |
543 |
|
|
state = 4; |
544 |
|
|
} |
545 |
|
|
else if ((*arg >= '1') && (*arg <= '9')) |
546 |
|
|
{ |
547 |
|
|
//We have a '+' followed by a non-zero |
548 |
|
|
//digit. Seems reasonable. |
549 |
|
|
i_mant_bdp = arg - s; |
550 |
|
|
state = 3; |
551 |
|
|
} |
552 |
|
|
else |
553 |
|
|
{ |
554 |
|
|
//Unidentifiable crap. This is not OK. |
555 |
|
|
//Error out. |
556 |
|
|
*failure = 1; |
557 |
|
|
goto term_seq; |
558 |
|
|
} |
559 |
|
|
break; |
560 |
|
|
//We've encountered a non-zero digit either first as part |
561 |
|
|
//of the string or later after + or -. We are processing |
562 |
|
|
//a mantissa that does not begin with "0". |
563 |
|
|
case 3 : if (!*arg) |
564 |
|
|
{ |
565 |
|
|
//We've reached the end of the string. This is |
566 |
|
|
//fine because we have a simple integer of the |
567 |
|
|
//form NNNN, +NNNN, or -NNNN. No problem with that. |
568 |
|
|
i_mant_bdp_len = (arg - s) - i_mant_bdp; |
569 |
|
|
*failure = 0; |
570 |
|
|
goto term_seq; |
571 |
|
|
} |
572 |
|
|
else if (*arg == '.') |
573 |
|
|
{ |
574 |
|
|
//Number followed by decimal point. This |
575 |
|
|
//means the mantissa is terminating. No issue. |
576 |
|
|
i_mant_bdp_len = (arg - s) - i_mant_bdp; |
577 |
|
|
state = 5; |
578 |
|
|
} |
579 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
580 |
|
|
{ |
581 |
|
|
//Yet more digits. Seems reasonable. |
582 |
|
|
//The assignment isn't necessary, but it |
583 |
|
|
//is aesthetic. |
584 |
|
|
state = 3; |
585 |
|
|
} |
586 |
|
|
else if ((*arg == 'e') || (*arg == 'E')) |
587 |
|
|
{ |
588 |
|
|
//Beginning of an exponent. This again |
589 |
|
|
//means the mantissa is terminating. No issue. |
590 |
|
|
i_mant_bdp_len = (arg - s) - i_mant_bdp; |
591 |
|
|
state = 6; |
592 |
|
|
} |
593 |
|
|
else |
594 |
|
|
{ |
595 |
|
|
//Unidentifiable crap. This is not OK. |
596 |
|
|
//Error out. |
597 |
|
|
*failure = 1; |
598 |
|
|
goto term_seq; |
599 |
|
|
} |
600 |
|
|
break; |
601 |
|
|
//We're processing a mantissa that begins with zero. There |
602 |
|
|
//is only one zero allowed before the decimal point. |
603 |
|
|
case 4 : if (!*arg) |
604 |
|
|
{ |
605 |
|
|
//We've reached the end of the string. This is |
606 |
|
|
//fine because it means we have zero. I'm going |
607 |
|
|
//to be unusually permissive and allow -0 and +0, |
608 |
|
|
//which isn't traditional. |
609 |
|
|
i_mant_bdp_len = (arg - s) - i_mant_bdp; |
610 |
|
|
*failure = 0; |
611 |
|
|
goto term_seq; |
612 |
|
|
} |
613 |
|
|
else if (*arg == '.') |
614 |
|
|
{ |
615 |
|
|
//Zero followed by decimal point. This |
616 |
|
|
//means the mantissa is terminating. No issue. |
617 |
|
|
i_mant_bdp_len = (arg - s) - i_mant_bdp; |
618 |
|
|
state = 5; |
619 |
|
|
} |
620 |
|
|
else if ((*arg == 'e') || (*arg == 'E')) |
621 |
|
|
{ |
622 |
|
|
//Beginning of an exponent. This again |
623 |
|
|
//means the mantissa is terminating. No issue. |
624 |
|
|
i_mant_bdp_len = (arg - s) - i_mant_bdp; |
625 |
|
|
state = 6; |
626 |
|
|
} |
627 |
|
|
else |
628 |
|
|
{ |
629 |
|
|
//Unidentifiable crap. This is not OK. |
630 |
|
|
//Error out. |
631 |
|
|
*failure = 1; |
632 |
|
|
goto term_seq; |
633 |
|
|
} |
634 |
|
|
break; |
635 |
|
|
//A decimal point has been found in the string. |
636 |
|
|
//This marks the end of the mantissa, for sure. |
637 |
|
|
case 5 : if (!*arg) |
638 |
|
|
{ |
639 |
|
|
//We've reached the end of the string. There are |
640 |
|
|
//two possibilities here. Either there have been no |
641 |
|
|
//digits before the decimal points, which is a no-no, |
642 |
|
|
//or there have been digits, which is fine. |
643 |
|
|
if (i_mant_bdp_len) |
644 |
|
|
{ |
645 |
|
|
*failure = 0; |
646 |
|
|
goto term_seq; |
647 |
|
|
} |
648 |
|
|
else |
649 |
|
|
{ |
650 |
|
|
*failure = 1; |
651 |
|
|
goto term_seq; |
652 |
|
|
} |
653 |
|
|
} |
654 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
655 |
|
|
{ |
656 |
|
|
//Digits after the decimal point. Need to |
657 |
|
|
//begin the portion after the decimal point. |
658 |
|
|
i_mant_adp = arg - s; |
659 |
|
|
state = 10; |
660 |
|
|
} |
661 |
|
|
else if ((*arg == 'e') || (*arg == 'E')) |
662 |
|
|
{ |
663 |
|
|
//Beginning of an exponent. This means |
664 |
|
|
//that have no digits after the decimal point. |
665 |
|
|
//This is OK. |
666 |
|
|
state = 6; |
667 |
|
|
} |
668 |
|
|
else |
669 |
|
|
{ |
670 |
|
|
//Unidentifiable crap. This is not OK. |
671 |
|
|
//Error out. |
672 |
|
|
*failure = 1; |
673 |
|
|
goto term_seq; |
674 |
|
|
} |
675 |
|
|
break; |
676 |
|
|
//The exponent has begin. |
677 |
|
|
case 6: if (!*arg) |
678 |
|
|
{ |
679 |
|
|
//The string is empty. This is not OK |
680 |
|
|
//because it would mean an E with nothing |
681 |
|
|
//following it. This is a no-no. |
682 |
|
|
//Error out. |
683 |
|
|
*failure = 1; |
684 |
|
|
goto term_seq; |
685 |
|
|
} |
686 |
|
|
else if (*arg == '-') |
687 |
|
|
{ |
688 |
|
|
//Leading - on the exponent. Fine. |
689 |
|
|
i_exp_sign = '-'; |
690 |
|
|
state = 8; |
691 |
|
|
} |
692 |
|
|
else if (*arg == '+') |
693 |
|
|
{ |
694 |
|
|
//Leading + on the exponent. Fine. |
695 |
|
|
i_exp_sign = '+'; |
696 |
|
|
state = 7; |
697 |
|
|
} |
698 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
699 |
|
|
{ |
700 |
|
|
//Beginning the digits of the exponent. Fine. |
701 |
|
|
i_exp = arg - s; |
702 |
|
|
state = 9; |
703 |
|
|
} |
704 |
|
|
else |
705 |
|
|
{ |
706 |
|
|
//Unidentifiable crap. This is not OK. |
707 |
|
|
//Error out. |
708 |
|
|
*failure = 1; |
709 |
|
|
goto term_seq; |
710 |
|
|
} |
711 |
|
|
break; |
712 |
|
|
|
713 |
|
|
//Had a + sign before the exponent. Now expecting digits. |
714 |
|
|
case 7: if (!*arg) |
715 |
|
|
{ |
716 |
|
|
//The string is empty. This is not OK |
717 |
|
|
//because it would mean an E+ with nothing |
718 |
|
|
//following it. This is a no-no. |
719 |
|
|
//Error out. |
720 |
|
|
*failure = 1; |
721 |
|
|
goto term_seq; |
722 |
|
|
} |
723 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
724 |
|
|
{ |
725 |
|
|
//Beginning the digits of the exponent. Fine. |
726 |
|
|
i_exp = arg - s; |
727 |
|
|
state = 9; |
728 |
|
|
} |
729 |
|
|
else |
730 |
|
|
{ |
731 |
|
|
//Unidentifiable crap. This is not OK. |
732 |
|
|
//Error out. |
733 |
|
|
*failure = 1; |
734 |
|
|
goto term_seq; |
735 |
|
|
} |
736 |
|
|
break; |
737 |
|
|
//Had a - sign before the exponent. Now expecting digits. |
738 |
|
|
case 8: if (!*arg) |
739 |
|
|
{ |
740 |
|
|
//The string is empty. This is not OK |
741 |
|
|
//because it would mean an E- with nothing |
742 |
|
|
//following it. This is a no-no. |
743 |
|
|
//Error out. |
744 |
|
|
*failure = 1; |
745 |
|
|
goto term_seq; |
746 |
|
|
} |
747 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
748 |
|
|
{ |
749 |
|
|
//Beginning the digits of the exponent. Fine. |
750 |
|
|
i_exp = arg - s; |
751 |
|
|
state = 9; |
752 |
|
|
} |
753 |
|
|
else |
754 |
|
|
{ |
755 |
|
|
//Unidentifiable crap. This is not OK. |
756 |
|
|
//Error out. |
757 |
|
|
*failure = 1; |
758 |
|
|
goto term_seq; |
759 |
|
|
} |
760 |
|
|
break; |
761 |
|
|
//Had one digit of exponent. Am processing remaining ones. |
762 |
|
|
case 9 : if (!*arg) |
763 |
|
|
{ |
764 |
|
|
//We've reached the end of the string. This is |
765 |
|
|
//fine because we have an exponent of the |
766 |
|
|
//form NNNN, +NNNN, or -NNNN. No problem with that. |
767 |
|
|
i_exp_len = (arg - s) - i_exp; |
768 |
|
|
*failure = 0; |
769 |
|
|
goto term_seq; |
770 |
|
|
} |
771 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
772 |
|
|
{ |
773 |
|
|
//Yet more digits. Seems reasonable. |
774 |
|
|
//The assignment isn't necessary, but it |
775 |
|
|
//is aesthetic. |
776 |
|
|
state = 9; |
777 |
|
|
} |
778 |
|
|
else |
779 |
|
|
{ |
780 |
|
|
//Unidentifiable crap. This is not OK. |
781 |
|
|
//Error out. |
782 |
|
|
*failure = 1; |
783 |
|
|
goto term_seq; |
784 |
|
|
} |
785 |
|
|
break; |
786 |
|
|
//Processing digits after decimal point. This state is out |
787 |
|
|
//of sequence because added it after on diagram. |
788 |
|
|
case 10: if (!*arg) |
789 |
|
|
{ |
790 |
|
|
//We've reached the end of the string. This is |
791 |
|
|
//fine. |
792 |
|
|
i_mant_adp_len = (arg - s) - i_mant_adp; |
793 |
|
|
*failure = 0; |
794 |
|
|
goto term_seq; |
795 |
|
|
} |
796 |
|
|
else if ((*arg >= '0') && (*arg <= '9')) |
797 |
|
|
{ |
798 |
|
|
//Yet more digits. Seems reasonable. |
799 |
|
|
//The assignment isn't necessary, but it |
800 |
|
|
//is aesthetic. |
801 |
|
|
state = 10; |
802 |
|
|
} |
803 |
|
|
else if ((*arg == 'e') || (*arg == 'E')) |
804 |
|
|
{ |
805 |
|
|
//Beginning of an exponent. This terminates |
806 |
|
|
//the digits after the decimal point. |
807 |
|
|
i_mant_adp_len = (arg - s) - i_mant_adp; |
808 |
|
|
state = 6; |
809 |
|
|
} |
810 |
|
|
else |
811 |
|
|
{ |
812 |
|
|
//Unidentifiable crap. This is not OK. |
813 |
|
|
//Error out. |
814 |
|
|
*failure = 1; |
815 |
|
|
goto term_seq; |
816 |
|
|
} |
817 |
|
|
break; |
818 |
|
|
default: |
819 |
|
|
abort(); |
820 |
|
|
break; |
821 |
|
|
} |
822 |
|
|
|
823 |
|
|
arg++; |
824 |
|
|
} |
825 |
|
|
|
826 |
|
|
|
827 |
|
|
//This is the setup for returning to the caller. We can |
828 |
|
|
//only fill in those data pointer for the caller that are |
829 |
|
|
//not NULL. |
830 |
|
|
term_seq: |
831 |
|
|
if (mant_sign) |
832 |
|
|
*mant_sign = i_mant_sign; |
833 |
|
|
if (mant_bdp) |
834 |
|
|
*mant_bdp = i_mant_bdp; |
835 |
|
|
if (mant_bdp_len) |
836 |
|
|
*mant_bdp_len = i_mant_bdp_len; |
837 |
|
|
if (mant_adp) |
838 |
|
|
*mant_adp = i_mant_adp; |
839 |
|
|
if (mant_adp_len) |
840 |
|
|
*mant_adp_len = i_mant_adp_len; |
841 |
|
|
if (exp_sign) |
842 |
|
|
*exp_sign = i_exp_sign; |
843 |
|
|
if (exp) |
844 |
|
|
*exp = i_exp; |
845 |
|
|
if (exp_len) |
846 |
|
|
*exp_len = i_exp_len; |
847 |
|
|
} |
848 |
|
|
|
849 |
|
|
|
850 |
|
|
//07/18/01: Has passed visual verification plus unit tests. |
851 |
|
|
void BSTRFUNC_commanate(char *s) |
852 |
|
|
{ |
853 |
|
|
int l; |
854 |
|
|
int ncommas; |
855 |
|
|
char *putpt, *getpt; |
856 |
|
|
int ndigits; |
857 |
|
|
|
858 |
|
|
//Adds commas to a numeric string. The space |
859 |
|
|
//must exist in the area passed. |
860 |
|
|
assert(s); |
861 |
|
|
|
862 |
|
|
//If the leading character on the string is a |
863 |
|
|
//'-', bump the pointer. Then everything |
864 |
|
|
//else applies as for an unsigned. |
865 |
|
|
if (*s == '-') |
866 |
|
|
s++; |
867 |
|
|
|
868 |
|
|
//Be sure the string currently meets the syntax for |
869 |
|
|
//a signed integer. If not, don't even touch it. |
870 |
|
|
if (!BSTRFUNC_is_uint_wo_commas(s)) |
871 |
|
|
return; |
872 |
|
|
|
873 |
|
|
//Get the length of the current string. |
874 |
|
|
l = strlen(s); |
875 |
|
|
|
876 |
|
|
//Let's agree, just in case something slipped through |
877 |
|
|
//the cracks, that zero length strings are not of |
878 |
|
|
//interest to us. |
879 |
|
|
if (l==0) |
880 |
|
|
return; |
881 |
|
|
|
882 |
|
|
//The number of commas to add is precisely |
883 |
|
|
//(N-1) div 3. |
884 |
|
|
if (l==0) |
885 |
|
|
ncommas = 0; |
886 |
|
|
else |
887 |
|
|
ncommas = (l-1)/3; |
888 |
|
|
|
889 |
|
|
//Walk through the string, adding commas. |
890 |
|
|
getpt = s + l - 1; |
891 |
|
|
putpt = s + l + ncommas; |
892 |
|
|
|
893 |
|
|
*putpt = 0; //Write the zero terminator. |
894 |
|
|
putpt--; |
895 |
|
|
|
896 |
|
|
ndigits = 0; |
897 |
|
|
|
898 |
|
|
while ((putpt > s) && (getpt > s)) |
899 |
|
|
{ |
900 |
|
|
*putpt = *getpt; |
901 |
|
|
putpt--; |
902 |
|
|
getpt--; |
903 |
|
|
ndigits++; |
904 |
|
|
if (((ndigits % 3) == 0) && (putpt != s)) |
905 |
|
|
{ |
906 |
|
|
*putpt = ','; |
907 |
|
|
putpt--; |
908 |
|
|
} |
909 |
|
|
assert((putpt >= s) && (getpt>=s)); |
910 |
|
|
} |
911 |
|
|
} |
912 |
|
|
|
913 |
|
|
|
914 |
|
|
//07/28/01: Visual inspection only. |
915 |
|
|
void BSTRFUNC_decommanate(char *s) |
916 |
|
|
{ |
917 |
|
|
char *src, *dst; |
918 |
|
|
|
919 |
|
|
assert(s != NULL); |
920 |
|
|
|
921 |
|
|
src = dst = s; |
922 |
|
|
|
923 |
|
|
while(1) |
924 |
|
|
{ |
925 |
|
|
if (!*src) |
926 |
|
|
{ |
927 |
|
|
*dst = 0; |
928 |
|
|
break; |
929 |
|
|
} |
930 |
|
|
else if (*src == ',') |
931 |
|
|
{ |
932 |
|
|
src++; |
933 |
|
|
} |
934 |
|
|
else |
935 |
|
|
{ |
936 |
|
|
*dst = *src; |
937 |
|
|
src++; |
938 |
|
|
dst++; |
939 |
|
|
} |
940 |
|
|
} |
941 |
|
|
} |
942 |
|
|
|
943 |
|
|
|
944 |
|
|
void BSTRFUNC_parse_str_to_uint32(const char *s, |
945 |
|
|
unsigned int *rv, |
946 |
|
|
int *error) |
947 |
|
|
{ |
948 |
|
|
unsigned _int64 temp; |
949 |
|
|
int digval; |
950 |
|
|
|
951 |
|
|
//Eyeball the input arguments. |
952 |
|
|
assert(s != NULL); |
953 |
|
|
assert(error != NULL); |
954 |
|
|
|
955 |
|
|
//Start off believing there is no error. |
956 |
|
|
*error = 0; |
957 |
|
|
|
958 |
|
|
//The string has to parse out as an unsigned integer or an |
959 |
|
|
//unsigned integer with commas, or we won't touch it. |
960 |
|
|
if (!BSTRFUNC_is_uint_wo_commas(s) && !BSTRFUNC_is_uint_w_commas(s)) |
961 |
|
|
{ |
962 |
|
|
*error = 1; |
963 |
|
|
return; |
964 |
|
|
} |
965 |
|
|
|
966 |
|
|
//OK, we know we have an unsigned integer, either without commas, |
967 |
|
|
//or with properly placed commas. Our only worry now is that it |
968 |
|
|
//is of a size that will fit in 32 bits. The way we can deal with |
969 |
|
|
//this is to format it into 64 bits and watch for overflow. |
970 |
|
|
temp = 0; |
971 |
|
|
|
972 |
|
|
while (*s) |
973 |
|
|
{ |
974 |
|
|
digval = CHARFUNC_digit_to_val(*s); |
975 |
|
|
if (digval >= 0) |
976 |
|
|
{ |
977 |
|
|
temp *= 10; |
978 |
|
|
temp += digval; |
979 |
|
|
if ((temp >> 32) & 0xFFFFFFFF) |
980 |
|
|
{ |
981 |
|
|
//We've had an overflow. |
982 |
|
|
*error = 1; |
983 |
|
|
return; |
984 |
|
|
} |
985 |
|
|
} |
986 |
|
|
s++; |
987 |
|
|
} |
988 |
|
|
|
989 |
|
|
*rv = (unsigned int)temp; |
990 |
|
|
} |
991 |
|
|
|
992 |
|
|
|
993 |
|
|
const char *BSTRFUNC_cvcinfo(void) |
994 |
|
|
{ |
995 |
|
|
return("$Header$"); |
996 |
|
|
} |
997 |
|
|
|
998 |
|
|
|
999 |
|
|
const char *BSTRFUNC_hvcinfo(void) |
1000 |
|
|
{ |
1001 |
|
|
return(BSTRFUNC_H_VERSION); |
1002 |
|
|
} |
1003 |
|
|
|
1004 |
|
|
//End of bstrfunc.c. |