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- /*******************************************************************************
- * This example source code is an alternate version of myprog.c
- * that adheres to ansi C89 standards rather than ansi C99.
- * The only difference being that C89 does not permit the argtable array
- * to be statically initialized with the contents of variables set at
- * runtime whereas C99 does.
- * Hence we cannot declare and initialize the argtable array in one declaration
- * as
- * void* argtable[] = {list, recurse, repeat, defines, outfile, verbose,
- * help, version, infiles, end};
- * Instead, we must declare
- * void* argtable[10];
- * and initialize the contents of the array separately.
- *
- * This file is part of the argtable3 library.
- *
- * Copyright (C) 1998-2001,2003-2011,2013 Stewart Heitmann
- * <sheitmann@users.sourceforge.net>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of STEWART HEITMANN nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL STEWART HEITMANN BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- ******************************************************************************/
- #include "argtable3.h"
- int mymain(int l, int R, int k,
- const char **defines, int ndefines,
- const char *outfile,
- int v,
- const char **infiles, int ninfiles)
- {
- int i;
- if (l>0) printf("list files (-l)\n");
- if (R>0) printf("recurse through directories (-R)\n");
- if (v>0) printf("verbose is enabled (-v)\n");
- printf("scalar k=%d\n",k);
- printf("output is \"%s\"\n", outfile);
- for (i=0; i<ndefines; i++)
- printf("user defined macro \"%s\"\n",defines[i]);
- for (i=0; i<ninfiles; i++)
- printf("infile[%d]=\"%s\"\n",i,infiles[i]);
- return 0;
- }
- int main(int argc, char **argv)
- {
- struct arg_lit *list = arg_lit0("lL",NULL, "list files");
- struct arg_lit *recurse = arg_lit0("R",NULL, "recurse through subdirectories");
- struct arg_int *repeat = arg_int0("k","scalar",NULL, "define scalar value k (default is 3)");
- struct arg_str *defines = arg_strn("D","define","MACRO",0,argc+2, "macro definitions");
- struct arg_file *outfile = arg_file0("o",NULL,"<output>", "output file (default is \"-\")");
- struct arg_lit *verbose = arg_lit0("v","verbose,debug", "verbose messages");
- struct arg_lit *help = arg_lit0(NULL,"help", "print this help and exit");
- struct arg_lit *version = arg_lit0(NULL,"version", "print version information and exit");
- struct arg_file *infiles = arg_filen(NULL,NULL,NULL,1,argc+2, "input file(s)");
- struct arg_end *end = arg_end(20);
- void* argtable[10];
- const char* progname = "myprog_C89";
- int nerrors;
- int exitcode=0;
- /* initialize the argtable array with ptrs to the arg_xxx structures constructed above */
- argtable[0] = list;
- argtable[1] = recurse;
- argtable[2] = repeat;
- argtable[3] = defines;
- argtable[4] = outfile;
- argtable[5] = verbose;
- argtable[6] = help;
- argtable[7] = version;
- argtable[8] = infiles;
- argtable[9] = end;
-
- /* verify the argtable[] entries were allocated sucessfully */
- if (arg_nullcheck(argtable) != 0)
- {
- /* NULL entries were detected, some allocations must have failed */
- printf("%s: insufficient memory\n",progname);
- exitcode=1;
- goto exit;
- }
- /* set any command line default values prior to parsing */
- repeat->ival[0]=3;
- outfile->filename[0]="-";
- /* Parse the command line as defined by argtable[] */
- nerrors = arg_parse(argc,argv,argtable);
- /* special case: '--help' takes precedence over error reporting */
- if (help->count > 0)
- {
- printf("Usage: %s", progname);
- arg_print_syntax(stdout,argtable,"\n");
- printf("This program demonstrates the use of the argtable2 library\n");
- printf("for parsing command line arguments.\n");
- arg_print_glossary(stdout,argtable," %-25s %s\n");
- exitcode=0;
- goto exit;
- }
- /* special case: '--version' takes precedence error reporting */
- if (version->count > 0)
- {
- printf("'%s' example program for the \"argtable\" command line argument parser.\n",progname);
- printf("September 2003, Stewart Heitmann\n");
- exitcode=0;
- goto exit;
- }
- /* If the parser returned any errors then display them and exit */
- if (nerrors > 0)
- {
- /* Display the error details contained in the arg_end struct.*/
- arg_print_errors(stdout,end,progname);
- printf("Try '%s --help' for more information.\n",progname);
- exitcode=1;
- goto exit;
- }
- /* special case: uname with no command line options induces brief help */
- if (argc==1)
- {
- printf("Try '%s --help' for more information.\n",progname);
- exitcode=0;
- goto exit;
- }
- /* normal case: take the command line options at face value */
- exitcode = mymain(list->count, recurse->count, repeat->ival[0],
- defines->sval, defines->count,
- outfile->filename[0], verbose->count,
- infiles->filename, infiles->count);
- exit:
- /* deallocate each non-null entry in argtable[] */
- arg_freetable(argtable,sizeof(argtable)/sizeof(argtable[0]));
- return exitcode;
- }
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