* ruby.c: revert r37298.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 32 insertions, 73 deletions

diff --git a/ruby.c b/ruby.c
index 31fd8b83da..8d2578256f 100644
--- a/ruby.c
+++ b/ruby.c
@@ -52,14 +52,6 @@
 char *getenv();
 #endif
 
-#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
-
-#if defined DISABLE_RUBYGEMS && DISABLE_RUBYGEMS
-#define DEFAULT_RUBYGEMS_ENABLED "disabled"
-#else
-#define DEFAULT_RUBYGEMS_ENABLED "enabled"
-#endif
-
 #define DISABLE_BIT(bit) (1U << disable_##bit)
 enum disable_flag_bits {
     disable_gems,
@@ -73,7 +65,6 @@ enum dump_flag_bits {
     dump_version_v,
     dump_copyright,
     dump_usage,
-    dump_help,
     dump_yydebug,
     dump_syntax,
     dump_parsetree,
@@ -132,73 +123,42 @@ static struct {
 } origarg;
 
 static void
-usage(const char *name, int help)
+usage(const char *name)
 {
     /* This message really ought to be max 23 lines.
      * Removed -h because the user already knows that option. Others? */
 
-    struct message {
-	const char *str;
-	unsigned short namelen, secondlen;
+    static const char *const usage_msg[] = {
+	"-0[octal]       specify record separator (\\0, if no argument)",
+	"-a              autosplit mode with -n or -p (splits $_ into $F)",
+	"-c              check syntax only",
+	"-Cdirectory     cd to directory, before executing your script",
+	"-d              set debugging flags (set $DEBUG to true)",
+	"-e 'command'    one line of script. Several -e's allowed. Omit [programfile]",
+	"-Eex[:in]       specify the default external and internal character encodings",
+	"-Fpattern       split() pattern for autosplit (-a)",
+	"-i[extension]   edit ARGV files in place (make backup if extension supplied)",
+	"-Idirectory     specify $LOAD_PATH directory (may be used more than once)",
+	"-l              enable line ending processing",
+	"-n              assume 'while gets(); ... end' loop around your script",
+	"-p              assume loop like -n but print line also like sed",
+	"-rlibrary       require the library, before executing your script",
+	"-s              enable some switch parsing for switches after script name",
+	"-S              look for the script using PATH environment variable",
+	"-T[level=1]     turn on tainting checks",
+	"-v              print version number, then turn on verbose mode",
+	"-w              turn warnings on for your script",
+	"-W[level=2]     set warning level; 0=silence, 1=medium, 2=verbose",
+	"-x[directory]   strip off text before #!ruby line and perhaps cd to directory",
+	"--copyright     print the copyright",
+	"--version       print the version",
+	NULL
     };
-#define M(shortopt, longopt, desc) { \
-    shortopt " " longopt " " desc, \
-    (unsigned short)sizeof(shortopt), \
-    (unsigned short)sizeof(longopt), \
-}
-    static const struct message usage_msg[] = {
-	M("-0[octal]",	   "",			   "specify record separator (\\0, if no argument)"),
-	M("-a",		   "",			   "autosplit mode with -n or -p (splits $_ into $F)"),
-	M("-c",		   "",			   "check syntax only"),
-	M("-Cdirectory",   "",			   "cd to directory before executing your script"),
-	M("-d",		   ", --debug",		   "set debugging flags (set $DEBUG to true)"),
-	M("-e 'command'",  "",			   "one line of script. Several -e's allowed. Omit [programfile]"),
-	M("-Eex[:in]",     ", --encoding=ex[:in]", "specify the default external and internal character encodings"),
-	M("-Fpattern",	   "",			   "split() pattern for autosplit (-a)"),
-	M("-i[extension]", "",			   "edit ARGV files in place (make backup if extension supplied)"),
-	M("-Idirectory",   "",			   "specify $LOAD_PATH directory (may be used more than once)"),
-	M("-l",		   "",			   "enable line ending processing"),
-	M("-n",		   "",			   "assume 'while gets(); ... end' loop around your script"),
-	M("-p",		   "",			   "assume loop like -n but print line also like sed"),
-	M("-rlibrary",	   "",			   "require the library before executing your script"),
-	M("-s",		   "",			   "enable some switch parsing for switches after script name"),
-	M("-S",		   "",			   "look for the script using PATH environment variable"),
-	M("-T[level=1]",   "",			   "turn on tainting checks"),
-	M("-v",		   ", --verbose",	   "print version number, then turn on verbose mode"),
-	M("-w",		   "",			   "turn warnings on for your script"),
-	M("-W[level=2]",   "",			   "set warning level; 0=silence, 1=medium, 2=verbose"),
-	M("-x[directory]", "",			   "strip off text before #!ruby line and perhaps cd to directory"),
-	M("-h",		   "",			   "show this message, --help for more info"),
-    };
-    static const struct message help_msg[] = {
-	M("--copyright",                   "", "print the copyright"),
-	M("--enable=feature[,...]",        "", "enable features"),
-	M("--disable=feature[,...]",       "", "disable features"),
-	M("--internal-encoding=encoding",  "", "specify the default internal character encoding"),
-	M("--external-encoding=encoding",  "", "specify the default external character encoding"),
-	M("--version",                     "", "print the version"),
-	M("--help",			   "", "show this message, -h for short message"),
-    };
-    static const struct message features[] = {
-	M("gems",    "",        "rubygems (default: "DEFAULT_RUBYGEMS_ENABLED")"),
-	M("rubyopt", "",        "RUBYOPT environment variable (default: enabled)"),
-    };
-    int i, w = help ? 32 : 16, num = numberof(usage_msg) - (help ? 1 : 0);
-#define SHOW(m) printf("  %.*s%-*.*s%s\n", (m).namelen-1, (m).str, \
-		       w - (m).namelen + 1, (help ? (m).secondlen-1 : 0), (m).str + (m).namelen, \
-		       (m).str + (m).namelen + (m).secondlen)
+    const char *const *p = usage_msg;
 
     printf("Usage: %s [switches] [--] [programfile] [arguments]\n", name);
-    for (i = 0; i < num; ++i)
-	SHOW(usage_msg[i]);
-
-    if (!help) return;
-
-    for (i = 0; i < numberof(help_msg); ++i)
-	SHOW(help_msg[i]);
-    puts("Features:");
-    for (i = 0; i < numberof(features); ++i)
-	SHOW(features[i]);
+    while (*p)
+	printf("  %s\n", *p++);
 }
 
 #ifdef MANGLED_PATH
@@ -726,7 +686,6 @@ dump_option(const char *str, int len, void *arg)
     SET_WHEN_DUMP(version);
     SET_WHEN_DUMP(copyright);
     SET_WHEN_DUMP(usage);
-    SET_WHEN_DUMP(help);
     SET_WHEN_DUMP(yydebug);
     SET_WHEN_DUMP(syntax);
     SET_WHEN_DUMP(parsetree);
@@ -1111,7 +1070,7 @@ proc_options(long argc, char **argv, struct cmdline_options *opt, int envopt)
 	    }
 	    else if (strcmp("help", s) == 0) {
 		if (envopt) goto noenvopt_long;
-		opt->dump |= DUMP_BIT(help);
+		opt->dump |= DUMP_BIT(usage);
 		goto switch_end;
 	    }
 	    else {
@@ -1308,8 +1267,8 @@ process_options(int argc, char **argv, struct cmdline_options *opt)
     argc -= i;
     argv += i;
 
-    if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) {
-	usage(origarg.argv[0], (opt->dump & DUMP_BIT(help)));
+    if (opt->dump & DUMP_BIT(usage)) {
+	usage(origarg.argv[0]);
 	return Qtrue;
     }