csope/src/opt.c

#include "global.h"

#include "build.h" 
#include "vp.h"
#include "version.h"	/* FILEVERSION and FIXVERSION */
#include "scanner.h" 

#include <stdlib.h>	/* atoi */
#include <getopt.h>

BOOL remove_symfile_onexit = NO;
BOOL onesearch;		/* one search only in line mode */
char *reflines;		/* symbol reference lines file */

char ** parse_options(int *argc, char **argv)
{
	int opt;
	int longind;
	char path[PATHLEN + 1];     /* file path */
	char *s;
	int argcc = *argc;

	struct option lopts[] = {
		{"help", 0, NULL, 'h'},
		{"version", 0, NULL, 'V'},
		{0, 0, 0, 0}
	};

	while ((opt = getopt_long(argcc, argv,
	       "hVbcCdeF:f:I:i:kLl0:1:2:3:4:5:6:7:8:9:P:p:qRs:TUuvX",
	       lopts, &longind)) != -1) {
		switch(opt) {

		case '?':
			usage();
			myexit(1);
			break;
		case 'X':
			remove_symfile_onexit = YES;
			break;
		case '0':
		case '1':
		case '2':
		case '3':
		case '4':
		case '5':
		case '6':
		case '7':
		case '8':
		case '9':
			/* The input fields numbers for line mode operation */
			field = opt - '0';
			if (strlen(optarg) > PATHLEN) {
				    postfatal("\
					cscope: pattern too long, cannot be > \
					%d characters\n", PATLEN);
			}
			strcpy(Pattern, optarg);	
			break;
		case 'b':	/* only build the cross-reference */
			buildonly = YES;
			linemode  = YES;
			break;
		case 'c':	/* ASCII characters only in crossref */
			compress = NO;
			break;
		case 'C':	/* turn on caseless mode for symbol searches */
			caseless = YES;
			egrepcaseless(caseless); /* simulate egrep -i flag */
			break;
		case 'd':	/* consider crossref up-to-date */
			isuptodate = YES;
			break;
		case 'e':	/* suppress ^E prompt between files */
			editallprompt = NO;
			break;
		case 'h':
			longusage();
			myexit(1);
			break;
		case 'k':	/* ignore DFLT_INCDIR */
			kernelmode = YES;
			break;
		case 'L':
			onesearch = YES;
			/* FALLTHROUGH */
		case 'l':
			linemode = YES;
			break;
		case 'v':
			verbosemode = YES;
			break;
		case 'V':
			fprintf(stderr, "%s: version %d%s\n", argv0,
				FILEVERSION, FIXVERSION);
			myexit(0);
			break;
		case 'q':	/* quick search */
			invertedindex = YES;
			break;
		case 'T':	/* truncate symbols to 8 characters */
			trun_syms = YES;
			break;
		case 'u':	/* unconditionally build the cross-reference */
			unconditional = YES;
			break;
		case 'U':	/* assume some files have changed */
			fileschanged = YES;
			break;
		case 'R':
			recurse_dir = YES;
			break;
		case 'f':	/* alternate cross-reference file */
			reffile = optarg;
			if (strlen(reffile) > sizeof(path) - 3) {
				postfatal("\
					cscope: reffile too long, cannot \
					be > %d characters\n", sizeof(path) - 3);
				/* NOTREACHED */
			}
			strcpy(path, reffile);

			s = path + strlen(path);
			strcpy(s, ".in");
			/*coverity[overwrite_var]*/
			invname = strdup(path);
			strcpy(s, ".po");
			/*coverity[overwrite_var]*/
			invpost = strdup(path);
			break;

		case 'F':	/* symbol reference lines file */
			reflines = optarg;
			break;
		case 'i':	/* file containing file names */
			namefile = optarg;
			break;
		case 'I':	/* #include file directory */
			includedir(optarg);
			break;
		case 'p':	/* file path components to display */
			dispcomponents = atoi(optarg);
			break;
		case 'P':	/* prepend path to file names */
			prependpath = optarg;
			break;
		case 's':	/* additional source file directory */
			sourcedir(optarg);
			break;
		}
	}
	/*
 	 * This adjusts argv so that we only see the remaining 
 	 * args.  Its ugly, but we need to do it so that the rest
 	 * of the main routine doesn't get all confused
 	 */
	*argc = *argc - optind;
	return argv + optind;
}