* src/gram.h, src/gram.c (rules_rhs_length): New.

[bison.git] / src / options.c

diff --git a/src/options.c b/src/options.c
index b951c5d6a399dafd98e8cc9191b509ab15dc83aa..32785975e892c3822bf6ce8b675c9362e57e97df 100644 (file)
--- a/src/options.c
+++ b/src/options.c
@@ -18,13 +18,10 @@
    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 

-#include <stdio.h>
-#include "xalloc.h"

 #include "system.h"
 #include "getopt.h"
 #include "files.h"
 #include "getargs.h"
 #include "system.h"
 #include "getopt.h"
 #include "files.h"
 #include "getargs.h"

-#include "gram.h"

 #include "symtab.h"
 #include "lex.h"
 #include "output.h"
 #include "symtab.h"
 #include "lex.h"
 #include "output.h"


@@ -33,10 +30,26 @@
 /* Shorts options.  */
 const char *shortopts = "yvegdhrltknVo:b:p:S:";
 
 /* Shorts options.  */
 const char *shortopts = "yvegdhrltknVo:b:p:S:";
 

-/* Long options.  */
-struct option *longopts = NULL;
+/* A CLI option only.
+   Arguments is the policy: `no', `optional', `required'.
+   OptionChar is the value given to the Var if the latter is specified.  */
+#undef OPTN
+#define OPTN(OptionString, Arguments, Var, Token, OptionChar) \
+  { opt_cmd_line, \
+    (OptionString), (Arguments##_argument), (Var), (Token), (OptionChar) },
+
+/* A directive only. */
+#undef DRTV
+#define DRTV(DirectiveString, Arguments, Var, Token) \
+  { opt_percent, \
+    (DirectiveString), (Arguments##_argument), (Var), (Token), (0) },
+
+/* An option activated both by a directive and an CLI option. */
+#undef BOTH
+#define BOTH(String, Arguments, Var, Token, OptionChar) \
+  { opt_both, \
+    (String), (Arguments##_argument), (Var), (Token), (OptionChar) },

 
 

-struct percent_table_struct *percent_table = NULL;

 
 const struct option_table_struct option_table[] =
 {
 
 const struct option_table_struct option_table[] =
 {


@@ -45,92 +58,88 @@ const struct option_table_struct option_table[] =
    */
 
   /* Operation modes. */
    */
 
   /* Operation modes. */

-  {opt_cmd_line, "help",      no_argument,                0,         0,   'h'},
-  {opt_cmd_line, "version",   no_argument,                0,         0,   'V'},
+  OPTN ("help",          no,           0,      0,   'h')
+  OPTN ("version",       no,           0,      0,   'V')

 
   /* Parser. */
 
   /* Parser. */

-  /* was 'a';  apparently unused -wjh */
-  {opt_cmd_line, "name-prefix",        required_argument,         0,         0,   'p'},
-  {opt_cmd_line, "include",     required_argument,         0,         0,   'I'},
+  OPTN ("name-prefix", required,       0,      0,   'p')
+  OPTN ("include",      required,       0,      0,   'I')

 
   /* Output. */
 
   /* Output. */

-  {opt_cmd_line, "file-prefix",        required_argument,         0,         0,   'b'},
-  {opt_cmd_line, "output",     required_argument,         0,         0,   'o'},
-  {opt_cmd_line, "output-file",        required_argument,         0,         0,   'o'},
-  {opt_cmd_line, "graph",      optional_argument,         0,         0,   'g'},
+  OPTN ("file-prefix", required,       0,      0,   'b')
+  OPTN ("output",      required,       0,      0,   'o')
+  OPTN ("output-file", required,       0,      0,   'o')
+  OPTN ("graph",       optional,       0,      0,   'g')

 
   /* Hidden. */
 
   /* Hidden. */

-  /* Fixme: What is this `1' doing here!!!  Sounds dead wrong.  See
-     locations too below.  */
-  {opt_cmd_line, "trace", no_argument, &trace_flag,          0,     1},
+  OPTN ("trace",        no,   &trace_flag,      0,     1)

 
   /*
    * Percent declarations.
    */
 
 
   /*
    * Percent declarations.
    */
 

-  {opt_percent, "token",               0,              NULL, tok_token,     0},
-  {opt_percent, "term",                        0,              NULL, tok_token,     0},
-  {opt_percent, "nterm",               0,              NULL, tok_nterm,     0},
-  {opt_percent, "type",                        0,              NULL, tok_type,      0},
-  {opt_percent, "guard",               0,              NULL, tok_guard,     0},
-  {opt_percent, "union",               0,              NULL, tok_union,     0},
-  {opt_percent, "expect",              0,              NULL, tok_expect,    0},
-  {opt_percent, "thong",               0,              NULL, tok_thong,     0},
-  {opt_percent, "start",               0,              NULL, tok_start,     0},
-  {opt_percent, "left",                        0,              NULL, tok_left,      0},
-  {opt_percent, "right",               0,              NULL, tok_right,     0},
-  {opt_percent, "nonassoc",            0,              NULL, tok_nonassoc,  0},
-  {opt_percent, "binary",              0,              NULL, tok_nonassoc,  0},
-  {opt_percent, "prec",                        0,              NULL, tok_prec,      0},
-  {opt_percent, "error-verbose",       0,    &error_verbose, tok_intopt,   0},
+  DRTV ("token",       no,             NULL, tok_token)
+  DRTV ("term",                no,             NULL, tok_token)
+  DRTV ("nterm",       no,             NULL, tok_nterm)
+  DRTV ("type",                no,             NULL, tok_type)
+  DRTV ("guard",       no,             NULL, tok_guard)
+  DRTV ("union",       no,             NULL, tok_union)
+  DRTV ("expect",      no,             NULL, tok_expect)
+  DRTV ("thong",       no,             NULL, tok_thong)
+  DRTV ("start",       no,             NULL, tok_start)
+  DRTV ("left",                no,             NULL, tok_left)
+  DRTV ("right",       no,             NULL, tok_right)
+  DRTV ("nonassoc",    no,             NULL, tok_nonassoc)
+  DRTV ("binary",      no,             NULL, tok_nonassoc)
+  DRTV ("prec",                no,             NULL, tok_prec)
+  DRTV ("error-verbose",no,   &error_verbose, tok_intopt)

 
   /* FIXME: semantic parsers will output an `include' of an
      output file: be sure that the naem included is indeed the name of
      the output file.  */ /* FIXME Should we activate this options ?
      */
 
   /* FIXME: semantic parsers will output an `include' of an
      output file: be sure that the naem included is indeed the name of
      the output file.  */ /* FIXME Should we activate this options ?
      */

-  {opt_both, "output",             required_argument, &spec_outfile, tok_stropt,  'o'},
-  {opt_both, "file-prefix", required_argument,&spec_file_prefix,tok_stropt,'b'},
-  {opt_both, "name-prefix", required_argument,&spec_name_prefix,tok_stropt,'p'},
+  BOTH ("output",      required,     &spec_outfile, tok_stropt, 'o')
+  BOTH ("file-prefix", required, &spec_file_prefix, tok_stropt, 'b')
+  BOTH ("name-prefix", required, &spec_name_prefix, tok_stropt, 'p')

 
 

-  {opt_percent, "define",              0,              NULL, tok_define,    0},
-  {opt_percent, "semantic-parser",     0,  &semantic_parser, tok_intopt,            0},
-  {opt_percent, "pure-parser",         0,      &pure_parser, tok_intopt,      0},
+  DRTV ("define",      no,               NULL, tok_define)
+  DRTV ("semantic-parser",no, &semantic_parser, tok_intopt)
+  DRTV ("pure-parser", no,       &pure_parser, tok_intopt)

 
   /*
    * Percent and command line declarations.
    */
 
 
   /*
    * Percent and command line declarations.
    */
 

-  /* FIXME Usually option use `-' to separe words on command line
-     and `_' for percent option.  But here the separator are always
-     the same, the char `-'.  */
-

   /* Output.  */
   /* Output.  */

-  {opt_both, "defines",         optional_argument,      &defines_flag, tok_intopt,   'd'},
-  {opt_both, "verbose",               no_argument,      &verbose_flag, tok_intopt,   'v'},
+  BOTH ("defines",     optional,   &defines_flag,    tok_intopt,   'd')
+  BOTH ("verbose",          no,   &verbose_flag,    tok_intopt,   'v')

 
   /* Operation modes.  */
 
   /* Operation modes.  */

-  {opt_both, "fixed-output-files", no_argument,  &yacc_flag, tok_intopt,   'y'},
-  {opt_both, "yacc",          no_argument,      &yacc_flag, tok_intopt,   'y'},
+  BOTH ("fixed-output-files", no,  &yacc_flag,      tok_intopt,   'y')
+  BOTH ("yacc",                      no,  &yacc_flag,       tok_intopt,   'y')

 
   /* Parser.  */
 
   /* Parser.  */

-  {opt_both, "debug",         no_argument,     &debug_flag, tok_intopt,           't'},
-  {opt_both, "locations",      no_argument, &locations_flag, tok_intopt,       1},
-  {opt_both, "no-lines",       no_argument,  &no_lines_flag, tok_intopt,          'l'},
-  {opt_both, "no-parser",      no_argument, &no_parser_flag, tok_intopt,          'n'},
-  {opt_both, "raw",           no_argument,               0, tok_obsolete, 'r'},
-  {opt_both, "skeleton",       required_argument,         0, tok_skel,    'S'},
-  {opt_both, "token-table",    no_argument, &token_table_flag, tok_intopt,   'k'},
+  BOTH ("debug",         no,     &debug_flag,       tok_intopt,   't')
+  BOTH ("locations",      no, &locations_flag,       tok_intopt,     1)
+  BOTH ("no-lines",       no,  &no_lines_flag,       tok_intopt,   'l')
+  BOTH ("no-parser",      no, &no_parser_flag,       tok_intopt,   'n')
+  BOTH ("raw",           no,               0,       tok_obsolete, 'r')
+  BOTH ("skeleton",       required,         0,       tok_skel,    'S')
+  BOTH ("token-table",    no, &token_table_flag,     tok_intopt,   'k')

 
   {0, 0, 0, 0, 0, 0}
 };
 
 
   {0, 0, 0, 0, 0, 0}
 };
 

+

 /*--------------------------------------------------------.
 | Create the longoptions structure from the option_table, |
 | for the getopt file.                                   |
 `--------------------------------------------------------*/
 /*--------------------------------------------------------.
 | Create the longoptions structure from the option_table, |
 | for the getopt file.                                   |
 `--------------------------------------------------------*/

-void
-create_long_option_table ()
+
+struct option *
+long_option_table_new ()

 {
 {

+  struct option *res = NULL;

   int i = 0;
   int j = 0;
   int number_options;
   int i = 0;
   int j = 0;
   int number_options;


@@ -140,26 +149,28 @@ create_long_option_table ()
        || option_table[i].access == opt_both)
       ++number_options;
 
        || option_table[i].access == opt_both)
       ++number_options;
 

-  longopts = XMALLOC (struct option, number_options + 1);
+  res = XMALLOC (struct option, number_options + 1);

   for (i = 0; option_table[i].name; i++)
     if (option_table[i].access == opt_cmd_line
        || option_table[i].access == opt_both)
       {
        /* Copy the struct information in the longoptions.  */
   for (i = 0; option_table[i].name; i++)
     if (option_table[i].access == opt_cmd_line
        || option_table[i].access == opt_both)
       {
        /* Copy the struct information in the longoptions.  */

-       longopts[j].name = option_table[i].name;
-       longopts[j].has_arg = option_table[i].has_arg;
+       res[j].name = option_table[i].name;
+       res[j].has_arg = option_table[i].has_arg;

        /* When an options is declared having 'optional_argument' and
           a flag is specified to be set, the option is skipped on
           command line. So we never use a flag when a command line
           option is declared 'optional_argument.  */
        /* When an options is declared having 'optional_argument' and
           a flag is specified to be set, the option is skipped on
           command line. So we never use a flag when a command line
           option is declared 'optional_argument.  */

-       if (longopts[j].has_arg == optional_argument)
-         longopts[j].flag = NULL;
+       if (res[j].has_arg == optional_argument)
+         res[j].flag = NULL;

        else
        else

-         longopts[j].flag = option_table[i].set_flag;
-       longopts[j++].val = option_table[i].val;
+         res[j].flag = option_table[i].set_flag;
+       res[j++].val = option_table[i].val;

       }
       }

-  longopts[number_options].name = NULL;
-  longopts[number_options].has_arg = 0;
-  longopts[number_options].flag = NULL;
-  longopts[number_options].val = 0;
+  res[number_options].name = NULL;
+  res[number_options].has_arg = 0;
+  res[number_options].flag = NULL;
+  res[number_options].val = 0;
+
+  return res;

 }
 }