Use ASCII for Sebastien Fricker's name.

[bison.git] / src / getargs.c

diff --git a/src/getargs.c b/src/getargs.c
index 4b417d59523f8fc4804c3d0a2fb0ec01c476e20f..4ff38fb188594e2ce0373bf6f5dd98c89fe5ccbe 100644 (file)
--- a/src/getargs.c
+++ b/src/getargs.c
@@ -1,7 +1,7 @@
 /* Parse command line arguments for Bison.
 
    Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,
 /* Parse command line arguments for Bison.
 
    Copyright (C) 1984, 1986, 1989, 1992, 2000, 2001, 2002, 2003, 2004,

-   2005, 2006 Free Software Foundation, Inc.
+   2005, 2006, 2007 Free Software Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -25,6 +25,8 @@
 #include "revision.h"
 
 #include <argmatch.h>
 #include "revision.h"
 
 #include <argmatch.h>

+#include <c-strcase.h>
+#include <configmake.h>

 #include <error.h>
 
 /* Hack to get <getopt.h> to declare getopt with a prototype.  */
 #include <error.h>
 
 /* Hack to get <getopt.h> to declare getopt with a prototype.  */


@@ -58,15 +60,75 @@ bool error_verbose = false;
 
 bool nondeterministic_parser = false;
 bool glr_parser = false;
 
 bool nondeterministic_parser = false;
 bool glr_parser = false;

+bool pull_parser = true;

 bool pure_parser = false;
 bool pure_parser = false;

+bool push_parser = false;

 
 int report_flag = report_none;
 int trace_flag = trace_none;
 
 int report_flag = report_none;
 int trace_flag = trace_none;

+int warnings_flag = warnings_none;

 
 

+static struct bison_language const valid_languages[] = {
+  { "c", "c-skel.m4", ".c", ".h", true },
+  { "c++", "c++-skel.m4", ".cc", ".hh", true },
+  { "java", "java-skel.m4", ".java", ".java", false },
+  { "", "", "", "", false }
+};
+
+static int skeleton_prio = 2;

 const char *skeleton = NULL;
 const char *skeleton = NULL;

+static int language_prio = 2;
+struct bison_language const *language = &valid_languages[0];

 const char *include = NULL;
 
 const char *include = NULL;
 

-extern char *program_name;
+char *program_name;
+
+
+/** Decode an option's set of keys.
+ *
+ *  \param option   option being decoded.
+ *  \param keys     array of valid subarguments.
+ *  \param values   array of corresponding (int) values.
+ *  \param flags    the flags to update
+ *  \param args     colon separated list of effective subarguments to decode.
+ *                  If 0, then activate all the flags.
+ *
+ *  The special value 0 resets the flags to 0.
+ */
+static void
+flags_argmatch (const char *option,
+               const char * const keys[], const int values[],
+               int *flags, char *args)
+{
+  if (args)
+    {
+      args = strtok (args, ",");
+      while (args)
+       {
+         int value = XARGMATCH (option, args, keys, values);
+         if (value == 0)
+           *flags = 0;
+         else
+           *flags |= value;
+         args = strtok (NULL, ",");
+       }
+    }
+  else
+    *flags = ~0;
+}
+
+/** Decode a set of sub arguments.
+ *
+ *  \param FlagName  the flag familly to update.
+ *  \param Args      the effective sub arguments to decode.
+ *
+ *  \arg FlagName_args   the list of keys.
+ *  \arg FlagName_types  the list of values.
+ *  \arg FlagName_flag   the flag to update.
+ */
+#define FLAGS_ARGMATCH(FlagName, Args)                                 \
+  flags_argmatch ("--" #FlagName, FlagName ## _args, FlagName ## _types, \
+                 &FlagName ## _flag, Args)

 
 
 /*----------------------.
 
 
 /*----------------------.


@@ -100,22 +162,6 @@ static const int report_types[] =
 
 ARGMATCH_VERIFY (report_args, report_types);
 
 
 ARGMATCH_VERIFY (report_args, report_types);
 

-static void
-report_argmatch (char *args)
-{
-  args = strtok (args, ",");
-  do
-    {
-      int report = XARGMATCH ("--report", args,
-                             report_args, report_types);
-      if (report == report_none)
-       report_flag = report_none;
-      else
-       report_flag |= report;
-    }
-  while ((args = strtok (NULL, ",")));
-}
-

 
 /*---------------------.
 | --trace's handling.  |
 
 /*---------------------.
 | --trace's handling.  |


@@ -160,26 +206,33 @@ static const int trace_types[] =
 
 ARGMATCH_VERIFY (trace_args, trace_types);
 
 
 ARGMATCH_VERIFY (trace_args, trace_types);
 

-static void
-trace_argmatch (char *args)
+
+/*------------------------.
+| --warnings's handling.  |
+`------------------------*/
+
+static const char * const warnings_args[] =

 {
 {

-  if (args)
-    {
-      args = strtok (args, ",");
-      do
-       {
-         int trace = XARGMATCH ("--trace", args,
-                                trace_args, trace_types);
-         if (trace == trace_none)
-           trace_flag = trace_none;
-         else
-           trace_flag |= trace;
-       }
-      while ((args = strtok (NULL, ",")));
-    }
-  else
-    trace_flag = trace_all;
-}
+  /* In a series of synonyms, present the most meaningful first, so
+     that argmatch_valid be more readable.  */
+  "none            - no warnings",
+  "midrule-values  - unset or unused midrule values",
+  "yacc            - incompatibilities with POSIX YACC",
+  "all             - all of the above",
+  "error           - warnings are errors",
+  0
+};
+
+static const int warnings_types[] =
+{
+  warnings_none,
+  warnings_midrule_values,
+  warnings_yacc,
+  warnings_all,
+  warnings_error
+};
+
+ARGMATCH_VERIFY (warnings_args, warnings_types);

 
 
 /*-------------------------------------------.
 
 
 /*-------------------------------------------.


@@ -196,29 +249,25 @@ usage (int status)
             program_name);
   else
     {
             program_name);
   else
     {

-      /* Some efforts were made to ease the translators' task, please
-        continue.  */
+      printf (_("Usage: %s [OPTION]... FILE\n"), program_name);

       fputs (_("\
       fputs (_("\

-GNU bison generates LALR(1) and GLR parsers.\n"), stdout);
-      putc ('\n', stdout);
-
-      fprintf (stdout, _("\
-Usage: %s [OPTION]... FILE\n"), program_name);
-      putc ('\n', stdout);
+Generate LALR(1) and GLR parsers.\n\
+\n\
+"), stdout);

 
       fputs (_("\
 
       fputs (_("\

-If a long option shows an argument as mandatory, then it is mandatory\n\
-for the equivalent short option also.  Similarly for optional arguments.\n"),
-            stdout);
-      putc ('\n', stdout);
+Mandatory arguments to long options are mandatory for short options too.\n\
+"), stdout);

 
       fputs (_("\
 
       fputs (_("\

+\n\

 Operation modes:\n\
   -h, --help                 display this help and exit\n\
   -V, --version              output version information and exit\n\
       --print-localedir      output directory containing locale-dependent data\n\
 Operation modes:\n\
   -h, --help                 display this help and exit\n\
   -V, --version              output version information and exit\n\
       --print-localedir      output directory containing locale-dependent data\n\

-  -y, --yacc                 emulate POSIX Yacc\n"), stdout);
-      putc ('\n', stdout);
+  -y, --yacc                 emulate POSIX Yacc\n\
+\n\
+"), stdout);

 
       fputs (_("\
 Parser:\n\
 
       fputs (_("\
 Parser:\n\


@@ -229,8 +278,8 @@ Parser:\n\
   -l, --no-lines             don't generate `#line' directives\n\
   -n, --no-parser            generate the tables only\n\
   -k, --token-table          include a table of token names\n\
   -l, --no-lines             don't generate `#line' directives\n\
   -n, --no-parser            generate the tables only\n\
   -k, --token-table          include a table of token names\n\

+\n\

 "), stdout);
 "), stdout);

-      putc ('\n', stdout);

 
       fputs (_("\
 Output:\n\
 
       fputs (_("\
 Output:\n\


@@ -239,9 +288,9 @@ Output:\n\
   -v, --verbose              same as `--report=state'\n\
   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\
   -o, --output=FILE          leave output to FILE\n\
   -v, --verbose              same as `--report=state'\n\
   -b, --file-prefix=PREFIX   specify a PREFIX for output files\n\
   -o, --output=FILE          leave output to FILE\n\

-  -g, --graph                also produce a VCG description of the automaton\n\
+  -g, --graph                also output a graph of the automaton\n\
+\n\

 "), stdout);
 "), stdout);

-      putc ('\n', stdout);

 
       fputs (_("\
 THINGS is a list of comma separated words that can include:\n\
 
       fputs (_("\
 THINGS is a list of comma separated words that can include:\n\


@@ -252,10 +301,8 @@ THINGS is a list of comma separated words that can include:\n\
   `all'          include all the above information\n\
   `none'         disable the report\n\
 "), stdout);
   `all'          include all the above information\n\
   `none'         disable the report\n\
 "), stdout);

-      putc ('\n', stdout);

 
 

-      fputs (_("\
-Report bugs to <bug-bison@gnu.org>.\n"), stdout);
+      printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);

     }
 
   exit (status);
     }
 
   exit (status);


@@ -288,12 +335,63 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
 }
 
 
 }
 
 

+/*-------------------------------------.
+| --skeleton and --language handling.  |
+`--------------------------------------*/
+
+void
+skeleton_arg (char const *arg, int prio, location const *loc)
+{
+  if (prio < skeleton_prio)
+    {
+      skeleton_prio = prio;
+      skeleton = arg;
+    }
+  else if (prio == skeleton_prio)
+    {
+      char const *msg =
+       _("multiple skeleton declarations are invalid");
+      if (loc)
+       complain_at (*loc, msg);
+      else
+       complain (msg);
+    }
+}
+
+void
+language_argmatch (char const *arg, int prio, location const *loc)
+{
+  char const *msg;
+
+  if (prio < language_prio)
+    {
+      int i;
+      for (i = 0; valid_languages[i].language[0]; i++)
+       if (c_strcasecmp (arg, valid_languages[i].language) == 0)
+         {
+           language_prio = prio;
+           language = &valid_languages[i];
+           return;
+         }
+      msg = _("invalid language `%s'");
+    }
+  else if (language_prio == prio)
+    msg = _("multiple language declarations are invalid");
+  else
+    return;
+
+  if (loc)
+    complain_at (*loc, msg, arg);
+  else
+    complain (msg, arg);
+}
+

 /*----------------------.
 | Process the options.  |
 `----------------------*/
 
 /* Shorts options.  */
 /*----------------------.
 | Process the options.  |
 `----------------------*/
 
 /* Shorts options.  */

-static char const short_options[] = "yvegdhr:ltknVo:b:p:S:T::";
+static char const short_options[] = "yvegdhr:L:ltknVo:b:p:S:T::W";

 
 /* Values for long options that do not have single-letter equivalents.  */
 enum
 
 /* Values for long options that do not have single-letter equivalents.  */
 enum


@@ -305,9 +403,10 @@ enum
 static struct option const long_options[] =
 {
   /* Operation modes. */
 static struct option const long_options[] =
 {
   /* Operation modes. */

-  { "help",            no_argument,    0,   'h' },
-  { "version",         no_argument,    0,   'V' },
-  { "print-localedir", no_argument,    0,   PRINT_LOCALEDIR_OPTION },
+  { "help",            no_argument,      0,   'h' },
+  { "version",         no_argument,      0,   'V' },
+  { "print-localedir", no_argument,      0,   PRINT_LOCALEDIR_OPTION },
+  { "warnings",        optional_argument, 0,   'W' },

 
   /* Parser. */
   { "name-prefix",   required_argument,          0,   'p' },
 
   /* Parser. */
   { "name-prefix",   required_argument,          0,   'p' },


@@ -338,6 +437,7 @@ static struct option const long_options[] =
   { "no-parser",      no_argument,               0,   'n' },
   { "raw",            no_argument,               0,     0 },
   { "skeleton",       required_argument,         0,   'S' },
   { "no-parser",      no_argument,               0,   'n' },
   { "raw",            no_argument,               0,     0 },
   { "skeleton",       required_argument,         0,   'S' },

+  { "language",       required_argument,         0,   'L' },

   { "token-table",    no_argument,               0,   'k' },
 
   {0, 0, 0, 0}
   { "token-table",    no_argument,               0,   'k' },
 
   {0, 0, 0, 0}


@@ -364,34 +464,26 @@ getargs (int argc, char *argv[])
        /* Certain long options cause getopt_long to return 0.  */
        break;
 
        /* Certain long options cause getopt_long to return 0.  */
        break;
 

-      case 'y':
-       yacc_flag = true;
+      case 'b':
+       spec_file_prefix = AS_FILE_NAME (optarg);

        break;
 
        break;
 

-      case 'h':
-       usage (EXIT_SUCCESS);
-
-      case 'V':
-       version ();
-       exit (EXIT_SUCCESS);
-
-      case PRINT_LOCALEDIR_OPTION:
-       printf ("%s\n", LOCALEDIR);
-       exit (EXIT_SUCCESS);
-

       case 'g':
        /* Here, the -g and --graph=FILE options are differentiated.  */
        graph_flag = true;
        if (optarg)
       case 'g':
        /* Here, the -g and --graph=FILE options are differentiated.  */
        graph_flag = true;
        if (optarg)

-         spec_graph_file = AS_FILE_NAME (optarg);
+         spec_graph_file = xstrdup (AS_FILE_NAME (optarg));

        break;
 
        break;
 

-      case 'v':
-       report_flag |= report_states;
+      case 'h':
+       usage (EXIT_SUCCESS);
+
+      case 'L':
+       language_argmatch (optarg, 0, NULL);

        break;
 
       case 'S':
        break;
 
       case 'S':

-       skeleton = AS_FILE_NAME (optarg);
+       skeleton_arg (AS_FILE_NAME (optarg), 0, NULL);

        break;
 
       case 'I':
        break;
 
       case 'I':


@@ -402,49 +494,68 @@ getargs (int argc, char *argv[])
        /* Here, the -d and --defines options are differentiated.  */
        defines_flag = true;
        if (optarg)
        /* Here, the -d and --defines options are differentiated.  */
        defines_flag = true;
        if (optarg)

-         spec_defines_file = AS_FILE_NAME (optarg);
+         spec_defines_file = xstrdup (AS_FILE_NAME (optarg));
+       break;
+
+      case 'k':
+       token_table_flag = true;

        break;
 
       case 'l':
        no_lines_flag = true;
        break;
 
        break;
 
       case 'l':
        no_lines_flag = true;
        break;
 

-      case LOCATIONS_OPTION:
-       locations_flag = true;
+      case 'n':
+       no_parser_flag = true;

        break;
 
        break;
 

-      case 'k':
-       token_table_flag = true;
+      case 'o':
+       spec_outfile = AS_FILE_NAME (optarg);

        break;
 
        break;
 

-      case 'n':
-       no_parser_flag = true;
+      case 'p':
+       spec_name_prefix = optarg;
+       break;
+
+      case 'r':
+       FLAGS_ARGMATCH (report, optarg);
+       break;
+
+      case 'T':
+       FLAGS_ARGMATCH (trace, optarg);

        break;
 
       case 't':
        debug_flag = true;
        break;
 
        break;
 
       case 't':
        debug_flag = true;
        break;
 

-      case 'o':
-       spec_outfile = AS_FILE_NAME (optarg);
-       break;
+      case 'V':
+       version ();
+       exit (EXIT_SUCCESS);

 
 

-      case 'b':
-       spec_file_prefix = AS_FILE_NAME (optarg);
+      case 'v':
+       report_flag |= report_states;

        break;
 
        break;
 

-      case 'p':
-       spec_name_prefix = optarg;
+      case 'y':
+       yacc_flag = true;

        break;
 
        break;
 

-      case 'r':
-       report_argmatch (optarg);
+      case 'W':
+       if (optarg)
+         FLAGS_ARGMATCH (warnings, optarg);
+       else
+         warnings_flag |= warnings_all;

        break;
 
        break;
 

-      case 'T':
-       trace_argmatch (optarg);
+      case LOCATIONS_OPTION:
+       locations_flag = true;

        break;
 
        break;
 

+      case PRINT_LOCALEDIR_OPTION:
+       printf ("%s\n", LOCALEDIR);
+       exit (EXIT_SUCCESS);
+

       default:
        usage (EXIT_FAILURE);
       }
       default:
        usage (EXIT_FAILURE);
       }