--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/util.c Tue Feb 15 18:57:52 2005 +0100
@@ -0,0 +1,227 @@
+/*
+ * libtu/util.c
+ *
+ * Copyright (c) Tuomo Valkonen 1999-2000.
+ *
+ * This file is distributed under the terms of the "Artistic License".
+ * See the included file LICENSE for details.
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef CONFIG_LOCALE
+#include <libintl.h>
+#endif
+
+#include "include/util.h"
+#include "include/misc.h"
+
+
+static const ProgInfo *proginfo=NULL;
+static const char *progname=NULL;
+
+static void common_opts(int *argc, char *argv[]);
+
+
+void libtu_init_argv0(const char *argv0, const ProgInfo *info)
+{
+ progname=argv0;
+ proginfo=info;
+
+#ifdef CONFIG_LOCALE
+ textdomain(simple_basename(argv0));
+#endif
+}
+
+
+void libtu_init(int *argc, char *argv[], const ProgInfo *info)
+{
+ libtu_init_argv0(argv[0], info);
+
+ common_opts(argc, argv);
+}
+
+
+const char *prog_execname()
+{
+ return progname;
+}
+
+
+const ProgInfo *prog_info()
+{
+ return proginfo;
+}
+
+
+const char *prog_name()
+{
+ return proginfo ? proginfo->name : NULL;
+}
+
+
+const char *prog_version()
+{
+ return proginfo ? proginfo->version : NULL;
+}
+
+
+const char *prog_authors()
+{
+ return proginfo ? proginfo->authors : NULL;
+}
+
+
+const char *prog_license()
+{
+ return proginfo ? proginfo->license : NULL;
+}
+
+
+const char *prog_usage()
+{
+ return proginfo ? proginfo->usage : NULL;
+}
+
+
+/* */
+
+
+static char *usages[][2]={
+ {"--help", "Show this help\n"},
+ {"--version", "Show program version\n"},
+ {"--authors", "Show program authors\n"},
+ {"--license", "Show program license\n"},
+ {"--proginfo", "Show program info\n"},
+ {NULL,}
+};
+
+
+static void common_usage(size_t start, size_t len)
+{
+ size_t l;
+ int i;
+
+ for(i=0; usages[i][0]!=NULL; i++){
+
+ for(l=0; l<start; l++){
+ putc(' ', stdout);
+ };
+
+ l=strlen(usages[i][0]);
+ writef(stdout, usages[i][0], l);
+
+ do{
+ putc(' ', stdout);
+ }while(++l<len-start);
+
+ writef(stdout, usages[i][1], strlen(usages[i][1]));
+ }
+}
+
+
+static void show_usage(const char *p)
+{
+ const char *tmp;
+ size_t len;
+ size_t start;
+
+ do{
+ tmp=strchr(p, '\n');
+
+ if(tmp==NULL){
+ len=strlen(p);
+ if(len==0)
+ break;
+ }else{
+ len=tmp-p;
+ }
+
+ start=strspn(p, " ");
+
+ if(p[start]=='$' && p[start+1]=='u'){
+ tmp=prog_execname();
+ if(start!=0)
+ writef(stdout, p, start);
+ printf(TR("Usage: %s"), tmp);
+ writef(stdout, p+start+2, len-start-2);
+ putc('\n', stdout);
+ }else if(p[start]=='$' && p[start+1]=='c'){
+ common_usage(start, len);
+ }else{
+ writef(stdout, p, len);
+ putc('\n', stdout);
+ }
+
+ p+=len+1;
+ }while(*(p-1)!='\0');
+
+}
+
+
+static void common_opts(int *argcp, char *argv[])
+{
+ int argc=*argcp;
+ const char *p, *p2;
+
+ argc--;
+ argv++;
+
+ for(; argc>0; argc--, argv++){
+ if(strcmp(*argv, "--help")==0){
+ p=prog_usage();
+ if(p==NULL){
+ printf(TR("Usage: %s [options]\n"
+ "Where options are:\n\n"), prog_execname());
+ common_usage(5, 20);
+ printf("\n");
+ }else{
+ show_usage(p);
+ }
+ }else if(strcmp(*argv, "--version")==0){
+ p=prog_version();
+ if(p==NULL)
+ printf(TR("No version available\n"));
+ else
+ printf("%s\n", p);
+ }else if(strcmp(*argv, "--authors")==0){
+ p=prog_authors();
+ if(p==NULL)
+ printf(TR("No author(s) info available\n"));
+ else
+ printf("%s\n", p);
+ }else if(strcmp(*argv, "--license")==0){
+ p=prog_license();
+ if(p==NULL)
+ printf(TR("No license available\n"));
+ else
+ printf("%s", TR(p));
+ }else if(strcmp(*argv, "--proginfo")==0){
+ p2=prog_version();
+ p=prog_name();
+
+ if(p==NULL){
+ p=prog_execname();
+
+ if(p==NULL){
+ printf(TR("No name available\n"));
+ break;
+ }
+ }
+
+ if(p2)
+ printf("%s v%s\n", p, p2);
+ else
+ printf("%s\n", p);
+ }else if(strcmp(*argv, "--")){
+ break;
+ }else{
+ continue;
+ }
+
+ exit(EXIT_SUCCESS);
+ }
+}