diff options
Diffstat (limited to 'libopts/sort.c')
| -rw-r--r-- | libopts/sort.c | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/libopts/sort.c b/libopts/sort.c deleted file mode 100644 index ead7133..0000000 --- a/libopts/sort.c +++ /dev/null @@ -1,359 +0,0 @@ - -/* - * sort.c $Id: sort.c,v 4.10 2007/04/28 22:19:23 bkorb Exp $ - * Time-stamp: "2006-10-18 11:29:04 bkorb" - * - * This module implements argument sorting. - */ - -/* - * Automated Options copyright 1992-2007 Bruce Korb - * - * Automated Options is free software. - * You may redistribute it and/or modify it under the terms of the - * GNU General Public License, as published by the Free Software - * Foundation; either version 2, or (at your option) any later version. - * - * Automated Options 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 Automated Options. See the file "COPYING". If not, - * write to: The Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - * As a special exception, Bruce Korb gives permission for additional - * uses of the text contained in his release of AutoOpts. - * - * The exception is that, if you link the AutoOpts library with other - * files to produce an executable, this does not by itself cause the - * resulting executable to be covered by the GNU General Public License. - * Your use of that executable is in no way restricted on account of - * linking the AutoOpts library code into it. - * - * This exception does not however invalidate any other reasons why - * the executable file might be covered by the GNU General Public License. - * - * This exception applies only to the code released by Bruce Korb under - * the name AutoOpts. If you copy code from other sources under the - * General Public License into a copy of AutoOpts, as the General Public - * License permits, the exception does not apply to the code that you add - * in this way. To avoid misleading anyone as to the status of such - * modified files, you must delete this exception notice from them. - * - * If you write modifications of your own for AutoOpts, it is your choice - * whether to permit this exception to apply to your modifications. - * If you do not wish that, delete this exception notice. - */ - -/* = = = START-STATIC-FORWARD = = = */ -/* static forward declarations maintained by :mkfwd */ -static tSuccess -mustHandleArg( tOptions* pOpts, char* pzArg, tOptState* pOS, - char** ppzOpts, int* pOptsIdx ); - -static tSuccess -mayHandleArg( tOptions* pOpts, char* pzArg, tOptState* pOS, - char** ppzOpts, int* pOptsIdx ); - -static tSuccess -checkShortOpts( tOptions* pOpts, char* pzArg, tOptState* pOS, - char** ppzOpts, int* pOptsIdx ); -/* = = = END-STATIC-FORWARD = = = */ - -/* - * "mustHandleArg" and "mayHandleArg" are really similar. The biggest - * difference is that "may" will consume the next argument only if it - * does not start with a hyphen and "must" will consume it, hyphen or not. - */ -static tSuccess -mustHandleArg( tOptions* pOpts, char* pzArg, tOptState* pOS, - char** ppzOpts, int* pOptsIdx ) -{ - /* - * An option argument is required. Long options can either have - * a separate command line argument, or an argument attached by - * the '=' character. Figure out which. - */ - switch (pOS->optType) { - case TOPT_SHORT: - /* - * See if an arg string follows the flag character. If not, - * the next arg must be the option argument. - */ - if (*pzArg != NUL) - return SUCCESS; - break; - - case TOPT_LONG: - /* - * See if an arg string has already been assigned (glued on - * with an `=' character). If not, the next is the opt arg. - */ - if (pOS->pzOptArg != NULL) - return SUCCESS; - break; - - default: - return FAILURE; - } - if (pOpts->curOptIdx >= pOpts->origArgCt) - return FAILURE; - - ppzOpts[ (*pOptsIdx)++ ] = pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - return SUCCESS; -} - -static tSuccess -mayHandleArg( tOptions* pOpts, char* pzArg, tOptState* pOS, - char** ppzOpts, int* pOptsIdx ) -{ - /* - * An option argument is optional. - */ - switch (pOS->optType) { - case TOPT_SHORT: - /* - * IF nothing is glued on after the current flag character, - * THEN see if there is another argument. If so and if it - * does *NOT* start with a hyphen, then it is the option arg. - */ - if (*pzArg != NUL) - return SUCCESS; - break; - - case TOPT_LONG: - /* - * Look for an argument if we don't already have one (glued on - * with a `=' character) - */ - if (pOS->pzOptArg != NULL) - return SUCCESS; - break; - - default: - return FAILURE; - } - if (pOpts->curOptIdx >= pOpts->origArgCt) - return PROBLEM; - - pzArg = pOpts->origArgVect[ pOpts->curOptIdx ]; - if (*pzArg != '-') - ppzOpts[ (*pOptsIdx)++ ] = pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - return SUCCESS; -} - -/* - * Process a string of short options glued together. If the last one - * does or may take an argument, the do the argument processing and leave. - */ -static tSuccess -checkShortOpts( tOptions* pOpts, char* pzArg, tOptState* pOS, - char** ppzOpts, int* pOptsIdx ) -{ - while (*pzArg != NUL) { - if (FAILED( shortOptionFind( pOpts, (tAoUC)*pzArg, pOS ))) - return FAILURE; - - /* - * See if we can have an arg. - */ - if (OPTST_GET_ARGTYPE(pOS->pOD->fOptState) == OPARG_TYPE_NONE) { - pzArg++; - - } else if (pOS->pOD->fOptState & OPTST_ARG_OPTIONAL) { - /* - * Take an argument if it is not attached and it does not - * start with a hyphen. - */ - if (pzArg[1] != NUL) - return SUCCESS; - - pzArg = pOpts->origArgVect[ pOpts->curOptIdx ]; - if (*pzArg != '-') - ppzOpts[ (*pOptsIdx)++ ] = - pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - return SUCCESS; - - } else { - /* - * IF we need another argument, be sure it is there and - * take it. - */ - if (pzArg[1] == NUL) { - if (pOpts->curOptIdx >= pOpts->origArgCt) - return FAILURE; - ppzOpts[ (*pOptsIdx)++ ] = - pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - } - return SUCCESS; - } - } - return SUCCESS; -} - -/* - * If the program wants sorted options (separated operands and options), - * then this routine will to the trick. - */ -LOCAL void -optionSort( tOptions* pOpts ) -{ - char** ppzOpts; - char** ppzOpds; - int optsIdx = 0; - int opdsIdx = 0; - - tOptState os = OPTSTATE_INITIALIZER(DEFINED); - - /* - * Disable for POSIX conformance, or if there are no operands. - */ - if ( (getenv( "POSIXLY_CORRECT" ) != NULL) - || NAMED_OPTS(pOpts)) - return; - - /* - * Make sure we can allocate two full-sized arg vectors. - */ - ppzOpts = malloc( pOpts->origArgCt * sizeof( char* )); - if (ppzOpts == NULL) - goto exit_no_mem; - - ppzOpds = malloc( pOpts->origArgCt * sizeof( char* )); - if (ppzOpds == NULL) { - free( ppzOpts ); - goto exit_no_mem; - } - - pOpts->curOptIdx = 1; - pOpts->pzCurOpt = NULL; - - /* - * Now, process all the options from our current position onward. - * (This allows interspersed options and arguments for the few - * non-standard programs that require it.) - */ - for (;;) { - char* pzArg; - tSuccess res; - - /* - * If we're out of arguments, we're done. Join the option and - * operand lists into the original argument vector. - */ - if (pOpts->curOptIdx >= pOpts->origArgCt) { - errno = 0; - goto joinLists; - } - - pzArg = pOpts->origArgVect[ pOpts->curOptIdx ]; - if (*pzArg != '-') { - ppzOpds[ opdsIdx++ ] = pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - continue; - } - - switch (pzArg[1]) { - case NUL: - /* - * A single hyphen is an operand. - */ - ppzOpds[ opdsIdx++ ] = pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - continue; - - case '-': - /* - * Two consecutive hypens. Put them on the options list and then - * _always_ force the remainder of the arguments to be operands. - */ - if (pzArg[2] == NUL) { - ppzOpts[ optsIdx++ ] = - pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - goto restOperands; - } - res = longOptionFind( pOpts, pzArg+2, &os ); - break; - - default: - /* - * If short options are not allowed, then do long - * option processing. Otherwise the character must be a - * short (i.e. single character) option. - */ - if ((pOpts->fOptSet & OPTPROC_SHORTOPT) == 0) { - res = longOptionFind( pOpts, pzArg+1, &os ); - } else { - res = shortOptionFind( pOpts, (tAoUC)pzArg[1], &os ); - } - break; - } - if (FAILED( res )) { - errno = EINVAL; - goto freeTemps; - } - - /* - * We've found an option. Add the argument to the option list. - * Next, we have to see if we need to pull another argument to be - * used as the option argument. - */ - ppzOpts[ optsIdx++ ] = pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - - if (OPTST_GET_ARGTYPE(os.pOD->fOptState) == OPARG_TYPE_NONE) { - /* - * No option argument. If we have a short option here, - * then scan for short options until we get to the end - * of the argument string. - */ - if ( (os.optType == TOPT_SHORT) - && FAILED( checkShortOpts( pOpts, pzArg+2, &os, - ppzOpts, &optsIdx )) ) { - errno = EINVAL; - goto freeTemps; - } - - } else if (os.pOD->fOptState & OPTST_ARG_OPTIONAL) { - switch (mayHandleArg( pOpts, pzArg+2, &os, ppzOpts, &optsIdx )) { - case FAILURE: errno = EIO; goto freeTemps; - case PROBLEM: errno = 0; goto joinLists; - } - - } else { - switch (mustHandleArg( pOpts, pzArg+2, &os, ppzOpts, &optsIdx )) { - case PROBLEM: - case FAILURE: errno = EIO; goto freeTemps; - } - } - } /* for (;;) */ - - restOperands: - while (pOpts->curOptIdx < pOpts->origArgCt) - ppzOpds[ opdsIdx++ ] = pOpts->origArgVect[ (pOpts->curOptIdx)++ ]; - - joinLists: - if (optsIdx > 0) - memcpy( pOpts->origArgVect + 1, ppzOpts, optsIdx * sizeof( char* )); - if (opdsIdx > 0) - memcpy( pOpts->origArgVect + 1 + optsIdx, - ppzOpds, opdsIdx * sizeof( char* )); - - freeTemps: - free( ppzOpts ); - free( ppzOpds ); - return; - - exit_no_mem: - errno = ENOMEM; - return; -} - -/* - * Local Variables: - * mode: C - * c-file-style: "stroustrup" - * indent-tabs-mode: nil - * End: - * end of autoopts/sort.c */ |
