5 files changed, 61 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index 2ea98c6..8779936 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 doc/*.html
 doc/*.pdf
+experiments
 nissy
 nissy-*
diff --git a/doc/nissy.1 b/doc/nissy.1
index 138d6ae..c467a2b 100644
--- a/doc/nissy.1
+++ b/doc/nissy.1
@@ -81,6 +81,13 @@ Invert the given scramble.
 Display a text-only description of the cube obtained after applying
 .Ar scramble .
 .
+.It Nm ptable Op Ar table
+Display information, such as the table distribution, on a pruning table.
+If no
+.Ar table
+is given, the available pruning tables are listed.
+This command is intended for advanced use only.
+.
 .It Nm quit
 Quit nissy.
 .
diff --git a/src/commands.c b/src/commands.c
index 78d7583..f01edfd 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -6,6 +6,7 @@ CommandArgs *           gen_parse_args(int c, char **v);
 CommandArgs *           help_parse_args(int c, char **v);
 CommandArgs *           parse_only_scramble(int c, char **v);
 CommandArgs *           parse_no_arg(int c, char **v);
+CommandArgs *           ptable_parse_args(int c, char **v);
 CommandArgs *           solve_parse_args(int c, char **v);
 CommandArgs *           scramble_parse_args(int c, char **v);
 
@@ -20,6 +21,7 @@ static void             steps_exec(CommandArgs *args);
 static void             commands_exec(CommandArgs *args);
 static void             freemem_exec(CommandArgs *args);
 static void             print_exec(CommandArgs *args);
+static void             ptable_exec(CommandArgs *args);
 static void             twophase_exec(CommandArgs *args);
 static void             help_exec(CommandArgs *args);
 static void             quit_exec(CommandArgs *args);
@@ -107,6 +109,15 @@ print_cmd = {
 };
 
 Command
+ptable_cmd = {
+        .name        = "ptable",
+        .usage       = "ptable [TABLE]",
+        .description = "Print information on pruning tables",
+        .parse_args  = ptable_parse_args,
+        .exec        = ptable_exec,
+};
+
+Command
 help_cmd = {
         .name        = "help",
         .usage       = "help [COMMAND]",
@@ -167,6 +178,7 @@ Command *commands[] = {
         &help_cmd,
         &invert_cmd,
         &print_cmd,
+        &ptable_cmd,
         &quit_cmd,
         &solve_cmd,
         &scramble_cmd,
@@ -384,6 +396,24 @@ parse_no_arg(int c, char **v)
         return a;
 }
 
+CommandArgs *
+ptable_parse_args(int c, char **v)
+{
+        int i;
+        CommandArgs *a = new_args();
+
+        if (c == 1) {
+                for (i = 0; all_pd[i] != NULL; i++)
+                        if (!strcmp(v[0], all_pd[i]->filename))
+                                a->pd = all_pd[i];
+                if (a->pd == NULL)
+                        fprintf(stderr, "%s: pruning table not found\n", v[0]);
+        }
+
+        a->success = c == 0 || (c == 1 && a->pd != NULL);
+        return a;
+}
+
 /* Exec functions implementation *********************************************/
 
 static void
@@ -584,6 +614,23 @@ print_exec(CommandArgs *args)
 }
 
 static void
+ptable_exec(CommandArgs *args)
+{
+        int i = 0;
+        if (args->pd == NULL) {
+                printf("Available pruning tables:\n");
+                for (i = 0; all_pd[i] != NULL; i++)
+                        printf("\t%s\n", all_pd[i]->filename);
+                printf("Use ptable [TABLE] to see the table distribution"
+                       " and other information\n");
+        } else {
+                genptable(args->pd, args->opts->nthreads);
+                print_ptable(args->pd);
+        }
+}
+
+
+static void
 twophase_exec(CommandArgs *args)
 {
         Cube c;
@@ -750,6 +797,7 @@ new_args(void)
         /* step and command are static */
         args->step = steps[0]; /* default: first step in list */
         args->command = NULL;
+        args->pd = NULL;
 
         return args;
 }
diff --git a/src/cubetypes.h b/src/cubetypes.h
index ad9c627..66839ca 100644
--- a/src/cubetypes.h
+++ b/src/cubetypes.h
@@ -162,6 +162,7 @@ commandargs
         char                      scrtype[20];
         bool                      scrstdin;
         bool                      header;
+        PruneData *               pd;
 };
 
 struct
diff --git a/src/pruning.c b/src/pruning.c
index aeeac21..fcb27e5 100644
--- a/src/pruning.c
+++ b/src/pruning.c
@@ -405,7 +405,10 @@ print_ptable(PruneData *pd)
         printf("Table %s\n", pd->filename);
         printf("Base value: %d\n", pd->base);
         for (i = 0; i < 16; i++)
-                printf("%2" PRIu64 "\t%10" PRIu64 "\n", i, pd->count[i]);
+                if (pd->count[i] != 0)
+                        printf("%2" PRIu64 "\t%10" PRIu64 "\n",
+                            i, pd->count[i]);
+        printf("Total: %" PRIu64 "\n", pd->coord->max);
 }
 
 uint64_t