GPST.pm

   1 package GPST;
   2
   3 #=======================================================================
   4 # GPST.pm
   5 # File ID: 5e0437a0-fafa-11dd-abd7-000475e441b9
   6 #
   7 # Character set: UTF-8
   8 # ©opyleft 2002– Øyvind A. Holm <sunny@sunbase.org>
   9 # License: GNU General Public License, see end of file for legal stuff.
  10 #=======================================================================
  11
  12 use strict;
  13 use warnings;
  14
  15 use GPSTdebug;
  16 use GPSTgeo;
  17
  18 BEGIN {
  19     use Exporter ();
  20     our (@ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
  21
  22     @ISA = qw(Exporter);
  23     @EXPORT = qw(&trackpoint &postgresql_copy_safe);
  24     %EXPORT_TAGS = ();
  25 }
  26 our @EXPORT_OK;
  27
  28 our $Spc = " ";
  29
  30 sub trackpoint {
  31     # Receive a hash and return a trackpoint as a string {{{
  32     my %Dat = @_;
  33
  34     defined($Dat{'what'}) || return(undef);
  35     defined($Dat{'format'}) || return(undef);
  36     defined($Dat{'error'}) || return(undef);
  37
  38     defined($Dat{'year'}) || ($Dat{'year'} = 0);
  39     defined($Dat{'month'}) || ($Dat{'month'} = 0);
  40     defined($Dat{'day'}) || ($Dat{'day'} = 0);
  41     defined($Dat{'hour'}) || ($Dat{'hour'} = "");
  42     defined($Dat{'min'}) || ($Dat{'min'} = "");
  43     defined($Dat{'sec'}) || ($Dat{'sec'} = "");
  44     $Dat{'print_time'} = (
  45         !$Dat{'year'} ||
  46         !$Dat{'month'} ||
  47         !$Dat{'day'} ||
  48         !length($Dat{'hour'}) ||
  49         !length($Dat{'min'}) ||
  50         !length($Dat{'sec'})
  51     ) ? 0 : 1;
  52
  53     if (
  54         ("$Dat{'year'}$Dat{'month'}$Dat{'day'}$Dat{'hour'}$Dat{'min'}" =~
  55         /[^\d]/) || ($Dat{'sec'} =~ /[^\d\.]/)
  56     ) {
  57         ($Dat{'print_time'} = 0);
  58     }
  59     "$Dat{'lat'}$Dat{'lon'}" =~ /[^\d\.\-\+]/ && return(undef);
  60
  61     defined($Dat{'lat'}) || ($Dat{'lat'} = "");
  62     defined($Dat{'lon'}) || ($Dat{'lon'} = "");
  63     defined($Dat{'ele'}) || ($Dat{'ele'} = "");
  64     defined($Dat{'desc'}) || ($Dat{'desc'} = "");
  65
  66     my $Retval = "";
  67
  68     if ($Dat{'what'} eq "tp") {
  69         if ($Dat{'format'} eq "gpsml") {
  70             $Retval .= gen_gpsml_entry(%Dat);
  71         } elsif($Dat{'format'} eq "gpx") {
  72             $Retval .= gen_gpx_entry(%Dat);
  73         } elsif($Dat{'format'} eq "clean") {
  74             $Retval .= "$Dat{'lon'}\t$Dat{'lat'}\t$Dat{'ele'}\n";
  75         } elsif($Dat{'format'} eq "xgraph") {
  76             if (length($Dat{'lat'}) && length($Dat{'lon'})) {
  77                 $Retval .= "$Dat{'lon'} $Dat{'lat'}\n";
  78             }
  79         } elsif ($Dat{'format'} eq "pgtab") {
  80             $Retval .= join("\t",
  81                 $Dat{'year'}
  82                     ? "$Dat{'year'}-$Dat{'month'}-$Dat{'day'}T" .
  83                       "$Dat{'hour'}:$Dat{'min'}:$Dat{'sec'}Z"
  84                     : '\N', # date
  85                 (length($Dat{'lat'}) && length($Dat{'lon'}))
  86                     ? "($Dat{'lat'},$Dat{'lon'})"
  87                     : '\N', # coor
  88                 length($Dat{'ele'}) ? $Dat{'ele'} : '\N', # ele
  89                 '\N', # name
  90                 '\N', # dist
  91                 '\N'  # description
  92             ) . "\n";
  93         } elsif ($Dat{'format'} eq "gpstrans") {
  94             # {{{
  95             my ($gpt_lat, $gpt_lon) =
  96                (ddd_to_dms($Dat{'lat'}), ddd_to_dms($Dat{'lon'}));
  97             if ($Dat{'print_time'}) {
  98                 $Retval .= "T\t$Dat{'month'}/$Dat{'day'}/$Dat{'year'} " .
  99                          "$Dat{'hour'}:$Dat{'min'}:$Dat{'sec'}\t" .
 100                          "$gpt_lat\t$gpt_lon\n";
 101             } else {
 102                 $Retval .= "T\t00/00/00 00:00:00\t$gpt_lat\t$gpt_lon\n";
 103             }
 104             # }}}
 105         } else {
 106             $Retval = undef;
 107         }
 108     } else {
 109         $Retval = undef;
 110     }
 111     return $Retval;
 112     # }}}
 113 } # trackpoint()
 114
 115 sub gen_gpx_entry {
 116     # {{{
 117     my %Dat = @_;
 118     my $Retval = "";
 119     my $err_str = length($Dat{'error'}) ? $Dat{'error'} : "";
 120     my $lat_str = length($Dat{'lat'}) ? " lat=\"$Dat{'lat'}\"" : "";
 121     my $lon_str = length($Dat{'lon'}) ? " lon=\"$Dat{'lon'}\"" : "";
 122     my ($estr_begin, $estr_ext, $estr_end) =
 123        (         "",        "",        "");
 124     if (length($err_str)) {
 125         $estr_begin = "<!-- ";
 126         $estr_ext = "<extensions>$Spc<error>$err_str</error>$Spc</extensions>$Spc";
 127         $estr_end = " -->";
 128     }
 129     if (length("$lat_str$lon_str$Dat{'ele'}")) {
 130         $Retval .=
 131         join("",
 132             "$Spc$Spc$Spc$Spc$Spc$Spc",
 133             $estr_begin,
 134             "<trkpt$lat_str$lon_str>",
 135             "$Spc",
 136             length($Dat{'ele'})
 137                 ? "<ele>$Dat{'ele'}</ele>$Spc"
 138                 : "",
 139             $Dat{'print_time'}
 140                 ? "<time>" .
 141                   "$Dat{'year'}-$Dat{'month'}-$Dat{'day'}T" .
 142                   "$Dat{'hour'}:$Dat{'min'}:$Dat{'sec'}Z" .
 143                   "</time>$Spc"
 144                 : "",
 145                 $estr_ext,
 146             "</trkpt>$estr_end\n"
 147         );
 148     }
 149     return($Retval);
 150     # }}}
 151 } # gen_gpx_entry()
 152
 153 sub gen_gpsml_entry {
 154     # {{{
 155     my %Dat = @_;
 156     my $err_str = length($Dat{'error'}) ? $Dat{'error'} : "";
 157     my $Elem = length($err_str) ? "etp" : "tp";
 158     my $Retval = join("",
 159             $Dat{'print_time'}
 160                 ? sprintf("<time>%04u-%02u-%02uT" .
 161                           "%02u:%02u:%02gZ</time> ",
 162                            $Dat{'year'}, $Dat{'month'}, $Dat{'day'},
 163                            $Dat{'hour'}, $Dat{'min'}, $Dat{'sec'}*1.0
 164                   )
 165                 : "",
 166             (length($Dat{'lat'}))
 167                 ? "<lat>" . $Dat{'lat'}*1.0 . "</lat> "
 168                 : "",
 169             (length($Dat{'lon'}))
 170                 ? "<lon>" . $Dat{'lon'}*1.0 . "</lon> "
 171                 : "",
 172             (length($Dat{'ele'}))
 173                 ? "<ele>" . $Dat{'ele'}*1.0 . "</ele> "
 174                 : "",
 175             (length($Dat{'desc'}))
 176                 ? sprintf("<desc>%s</desc> ",
 177                           $Dat{'desc'})
 178                 : ""
 179     );
 180     length($Retval) &&
 181         ($Retval = sprintf("<%s%s> %s</%s>\n",
 182                            $Elem,
 183                            length($err_str) ? " err=\"$err_str\"" : "",
 184                            $Retval,
 185                            $Elem)
 186     );
 187     return($Retval);
 188     # }}}
 189 } # gen_gpsml_entry()
 190
 191 sub postgresql_copy_safe {
 192     # {{{
 193     my $Str = shift;
 194     $Str =~ s/\\/\\\\/gs;
 195     $Str =~ s/\n/\\n/gs;
 196     $Str =~ s/\r/\\r/gs;
 197     $Str =~ s/\t/\\t/gs;
 198     return($Str);
 199     # }}}
 200 }
 201
 202 1;