1 | # reads in configuration files
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2 |
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3 | package cfgread;
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4 |
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5 |
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6 | sub read_cfg_line {
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7 | my ($handle) = @_;
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8 | my $line = "";
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9 |
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10 | while (defined($line = <$handle>)) {
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11 | $line =~ s/^\#.*$//; # remove comments
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12 | $line =~ s/\cM|\cJ//g; # remove end-of-line characters
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13 | if ($line =~ /\w/) {
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14 | my @line = split(/\t/, $line);
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15 | return \@line;
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16 | }
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17 | }
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18 | return undef;
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19 | }
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20 |
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21 | sub write_cfg_line {
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22 | my ($handle, $line) = @_;
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23 | print $handle join ("\t", @$line), "\n";
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24 | }
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25 |
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26 |
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27 | # stringexp and arrayexp should be something like
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28 | # '^(this|that)$'
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29 | sub read_cfg_file {
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30 | my ($filename, $stringexp, $arrayexp) = @_;
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31 | my ($line);
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32 | my $data = {};
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33 |
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34 | if (open (COLCFG, $filename)) {
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35 | while (defined ($line = &read_cfg_line('COLCFG'))) {
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36 | if (scalar(@$line) >= 2) {
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37 | my $key = shift (@$line);
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38 | if ($key =~ /$stringexp/) {
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39 | $data->{$key} = shift (@$line);
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40 |
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41 | } elsif ($key =~ /$arrayexp/) {
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42 | push (@{$data->{$key}}, @$line);
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43 | }
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44 | }
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45 | }
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46 | close (COLCFG);
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47 | } else {
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48 | print STDERR "cfgread::read_cfg_file couldn't read the cfg file $filename\n";
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49 | }
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50 |
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51 | return $data;
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52 | }
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53 |
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54 |
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55 | # stringexp and arrayexp should be something like
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56 | # '^(this|that)$'
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57 | sub write_cfg_file {
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58 | my ($filename, $data, $stringexp, $arrayexp) = @_;
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59 |
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60 | if (open (COLCFG, ">$filename")) {
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61 | foreach $key (sort(keys(%$data))) {
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62 | if ($key =~ /$stringexp/) {
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63 | &write_cfg_line ('COLCFG', [$key, $data->{$key}]);
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64 | } elsif ($key =~ /$arrayexp/) {
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65 | &write_cfg_line ('COLCFG', [$key, @{$data->{$key}}]);
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66 | }
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67 | }
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68 | close (COLCFG);
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69 | } else {
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70 | print STDERR "cfgread::write_cfg_file couldn't write the cfg file $filename\n";
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71 | }
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72 | }
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73 |
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74 |
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75 | 1;
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