started the addition of help files

[spider.git] / perl / DXCommandmode.pm

diff --git a/perl/DXCommandmode.pm b/perl/DXCommandmode.pm
index 474d2c9c90d58ac1f8090ff3c75fd906650e8d90..b51d9c4c3716e12cb12130ee06ac0b387f7245f6 100644 (file)
--- a/perl/DXCommandmode.pm
+++ b/perl/DXCommandmode.pm
@@ -16,13 +16,14 @@ use DXChannel;
 use DXUser;
 use DXVars;
 use DXDebug;
+use DXM;
+use Carp;
 
 use strict;
+use vars qw(%Cache %cmd_cache);
 
-#use vars qw( %Cache $last_dir_mtime @cmd);
-my %Cache = ();                  # cache of dynamically loaded routine's mod times
-my $last_dir_mtime = 0;          # the last time one of the cmd dirs was modified
-my @cmd = undef;                 # a list of commands+path pairs (in alphabetical order)
+%Cache = ();                  # cache of dynamically loaded routine's mod times
+%cmd_cache = ();            # cache of short names
 
 #
 # obtain a new connection this is derived from dxchannel
@@ -52,12 +53,23 @@ sub start
   $self->msg('pr', $call);
   $self->state('prompt');                  # a bit of room for further expansion, passwords etc
   $self->{priv} = $user->priv;
+  $self->{lang} = $user->lang;
   $self->{priv} = 0 if $line =~ /^(ax|te)/;     # set the connection priv to 0 - can be upgraded later
   $self->{consort} = $line;                # save the connection type
 
   # set some necessary flags on the user if they are connecting
   $self->{wwv} = $self->{talk} = $self->{ann} = $self->{here} = $self->{dx} = 1;
-
+  $self->prompt() if $self->{state} =~ /^prompt/o;
+  
+  # add yourself to the database
+  my $node = DXNode->get($main::mycall) or die "$main::mycall not allocated in DXNode database";
+  my $cuser = DXNodeuser->new($self, $node, $call, 0, 1);
+  $node->dxchan($self) if $call eq $main::myalias;       # send all output for mycall to myalias
+  
+  # issue a pc16 to everybody interested
+  my $nchan = DXChannel->get($main::mycall);
+  my @pc16 = DXProt::pc16($nchan, $cuser);
+  DXProt::broadcast_ak1a(@pc16);
 }
 
 #
@@ -68,7 +80,7 @@ sub normal
   my $self = shift;
   my $user = $self->{user};
   my $call = $self->{call};
-  my $cmdline = shift; 
+  my $cmdline = shift;
 
   # strip out //
   $cmdline =~ s|//|/|og;
@@ -77,12 +89,15 @@ sub normal
   my ($cmd, $args) = $cmdline =~ /^([\w\/]+)\s*(.*)/o;
 
   if ($cmd) {
-
+    
+       my ($path, $fcmd);
+   
     # first expand out the entry to a command
-    $cmd = search($cmd);
+    ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
+    ($path, $fcmd) = search($main::cmd, $cmd, "pl") if !$path || !$fcmd;
 
-    my @ans = $self->eval_file($main::localcmd, $cmd, $args);
-       @ans = $self->eval_file($main::cmd, $cmd, $args) if !$ans[0];
+    my @ans = $self->eval_file($path, $fcmd, $args) if $path && $fcmd;
+#      @ans = $self->eval_file($main::cmd, $cmd, $args) if !$ans[0];
        if ($ans[0]) {
       shift @ans;
          $self->send(@ans) if @ans > 0;
@@ -128,7 +143,21 @@ sub process
 #
 sub finish
 {
+  my $self = shift;
+  my $call = $self->call;
+
+  if ($call eq $main::myalias) {   # unset the channel if it is us really
+    my $node = DXNode->get($main::mycall);
+       $node->{dxchan} = 0;
+  }
+  my $ref = DXNodeuser->get($call);
 
+  # issue a pc17 to everybody interested
+  my $nchan = DXChannel->get($main::mycall);
+  my $pc17 = $nchan->pc17($self);
+  DXProt::broadcast_ak1a($pc17);
+  
+  $ref->del() if $ref;
 }
 
 #
@@ -178,10 +207,66 @@ sub get_all
 
 sub search
 {
-  my $short_cmd = shift;
-  return $short_cmd;    # just return it for now
+  my ($path, $short_cmd, $suffix) = @_;
+  my ($apath, $acmd);
+
+  # commands are lower case
+  $short_cmd = lc $short_cmd;
+  dbg('command', "command: $path $short_cmd\n");
+  
+  # return immediately if we have it
+  my ($apath, $acmd) = split ',', $cmd_cache{$short_cmd};
+  if ($apath && $acmd) {
+    dbg('command', "cached $short_cmd = ($apath, $acmd)\n");
+    return ($apath, $acmd);
+  }
+  
+  # if not guess
+  my @parts = split '/', $short_cmd;
+  my $dirfn;
+  my $curdir = $path;
+  my $p;
+  my $i;
+  my @lparts;
+  
+  for ($i = 0; $i < @parts; $i++) {
+    my  $p = $parts[$i];
+       opendir(D, $curdir) or confess "can't open $curdir $!";
+       my @ls = readdir D;
+       closedir D;
+       my $l;
+       foreach $l (sort @ls) {
+         next if $l =~ /^\./;
+      if ($i < $#parts) {            # we are dealing with directories
+        if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
+                 dbg('command', "got dir: $curdir/$l\n");
+                 $dirfn .= "$l/";
+                 $curdir .= "/$l";
+                 last;
+               }
+      } else {                # we are dealing with commands
+           @lparts = split /\./, $l;                  
+               next if $lparts[$#lparts] ne $suffix;       # only look for .$suffix files
+               if ($p eq substr($l, 0, length $p)) {
+                 pop @lparts;        #  remove the suffix
+                 $l = join '.', @lparts;
+#                chop $dirfn;               # remove trailing /
+                 $cmd_cache{"$short_cmd"} = join(',', ($path, "$dirfn$l"));   # cache it
+          dbg('command', "got path: $path cmd: $dirfn$l\n");
+                 return ($path, "$dirfn$l"); 
+               }
+         }
+       }
+  }
+  return ();  
 }  
 
+# clear the command name cache
+sub clear_cmd_cache
+{
+  %cmd_cache = ();
+}
+
 #
 # the persistant execution of things from the command directories
 #
@@ -261,7 +346,7 @@ sub eval_file {
        }
        if ($@) {
          delete_package($package);
-         return (0, "Syserr: Eval err $@ on $package");
+         return (1, "Syserr: Eval err $@ on $package");
        }
                
        #cache it unless we're cleaning out each time
@@ -271,10 +356,10 @@ sub eval_file {
   my @r;
   my $c = qq{ \@r = \$self->$package(\@_); };
   dbg('eval', "cluster cmd = $c\n");
-  eval  $c; ;
+  eval  $c;
   if ($@) {
     delete_package($package);
-       return (0, "Syserr: Eval err $@ on cached $package");
+       return (1, "Syserr: Eval err $@ on cached $package");
   }
 
   #take a look if you want