bk

src/opt.c

@@ -0,0 +1,159 @@
+#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;
+}