Name

row —

ATTRIBUTES

Attribute Pos. Req. Default Description
width Yes
interpolate     1 interpolate input?
reparse     1 interpolate output?
hide     0 Hide the tag return value?

DESCRIPTION

BEHAVIOR

This tag does not appear to be affected by, or affect, the rest of Interchange.

EXAMPLES

No examples are available at this time. We do consider this a problem and will try to supply some.

NOTES

AVAILABILITY

row is available in Interchange versions:

4.6.0-5.7.0 (git-head)

SOURCE

Interchange 5.7.0:

Source: code/SystemTag/row.coretag
Lines: 208


# Copyright 2002-2007 Interchange Development Group and others
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.  See the LICENSE file for details.
# 
# $Id: row.coretag,v 1.4 2007-03-30 23:40:49 pajamian Exp $

UserTag row                 Order        width
UserTag row                 hasEndTag
UserTag row                 Interpolate
UserTag row                 PosNumber    1
UserTag row                 Version      $Revision: 1.4 $
UserTag row                 Routine      <<EOR
sub tag_column {
my($spec,$text) = @_;
my($append,$f,$i,$line,$usable);
my(%def) = qw(
        width 0
        spacing 1
        gutter 2
        wrap 1
        html 0
        align left
      );
my(%spec)  = ();
my(@out)  = ();
my(@lines)  = ();

$spec =~ s/\n/ /g;
$spec =~ s/^\s+//;
$spec =~ s/\s+$//;
$spec = lc $spec;

$spec =~ s/\s*=\s*/=/;
$spec =~ s/^(\d+)/width=$1/;
%spec = split /[\s=]+/, $spec;

for(keys %def) {
  $spec{$_} = $def{$_} unless defined $spec{$_};
}

if($spec{'html'} && $spec{'wrap'}) {
  ::logError("tag_column: can't have 'wrap' and 'html' specified at same time.");
  $spec{wrap} = 0;
}

if(! $spec{align} or $spec{align} !~ /^n/i) {
  $text =~ s/\s+/ /g;
}

my $len = sub {
  my($txt) = @_;
  if (1 or $spec{html}) {
    $txt =~
    s{ <
         (
         [^>'"] +
          |
         ".*?"
          |
         '.*?'
        ) +
      >
    }{}gsx;
  }
  return length($txt);
};

$usable = $spec{'width'} - $spec{'gutter'};
return "BAD_WIDTH" if  $usable < 1;

if($spec{'align'} =~ /^[ln]/i) {
  $f = sub {
        $_[0] .
        ' ' x ($usable - $len->($_[0])) .
        ' ' x $spec{'gutter'};
        };
}
elsif($spec{'align'} =~ /^r/i) {
  $f = sub {
        ' ' x ($usable - $len->($_[0])) .
        $_[0] .
        ' ' x $spec{'gutter'};
        };
}
elsif($spec{'align'} =~ /^i/i) {
  $spec{'wrap'} = 0;
  $usable = 9999;
  $f = sub { @_ };
}
else {
  return "BAD JUSTIFICATION SPECIFICATION: $spec{'align'}";
}

$append = '';
if($spec{'spacing'} > 1) {
  $append .= "\n" x ($spec{'spacing'} - 1);
}

if($spec{'align'} =~ /^n/i) {
  @lines = split(/\r?\n/, $text);
}
elsif(is_yes($spec{'wrap'}) and length($text) > $usable) {
  @lines = wrap($text,$usable);
}
elsif($spec{'align'} =~ /^i/i) {
  $lines[0] = ' ' x $spec{'width'};
  $lines[1] = $text . ' ' x $spec{'gutter'};
}
elsif (! $spec{'html'}) {
  $lines[0] = substr($text,0,$usable);
}

foreach $line (@lines) {
  push @out , &{$f}($line);
  for($i = 1; $i < $spec{'spacing'}; $i++) {
    push @out, '';
  }
}
@out;
}

sub wrap {
  my ($str, $width) = @_;
  my @a = ();
  my ($l, $b);

  for (;;) {
      $str =~ s/^ +//;
      $l = length($str);
      last if $l == 0;
      if ($l <= $width) {
          push @a, $str;
          last;
      }
      $b = rindex($str, " ", $width - 1);
      if ($b == -1) {
          push @a, substr($str, 0, $width);
          $str = substr($str, $width);
      }
      else {
          push @a, substr($str, 0, $b);
          $str = substr($str, $b + 1);
      }
  }
  return @a;
}

sub {
  my($width,$text) = @_;
my($col,$spec);
my(@lines);
my(@len);
my(@out);
my($i,$j,$k);
my($x,$y,$line);

$i = 0;
while( $text =~ s!\[col(?:umn)?\s+
           ([^\]]+)
           \]
           ((?s:.)*?)
           \[/col(?:umn)?\] !!ix    ) {
  $spec = $1;
  $col = $2;
  $lines[$i] = [];
  @{$lines[$i]} = tag_column($spec,$col);
  # Discover X dimension
  $len[$i] = length(${$lines[$i]}[0]);
  if(defined ${$lines[$i]}[1] and ${$lines[$i]}[1] =~ /^<\s*input\s+/i) {
    shift @{$lines[$i]};
  }
  $i++;
}
my $totlen = 0;
for(@len) { $totlen += $_ }
if ($totlen > $width) {
  return " B A D   R O W  S P E C I F I C A T I O N - columns too wide.\n"
}

# Discover y dimension
$j = $#{$lines[0]};
for ($k = 1; $k < $i; $k++) {
  $j = $#{$lines[$k]} > $j ? $#{$lines[$k]} : $j;
}

for($y = 0; $y <= $j; $y++) {
  $line = '';
  for($x = 0; $x < $i; $x++) {
    if(defined ${$lines[$x]}[$y]) {
      $line .= ${$lines[$x]}[$y];
      $line =~ s/\s+$//
        if ($i - $x) == 1;
    }
    elsif (($i - $x) > 1) {
        $line  .= ' ' x $len[$x];
    }
    else {
      $line =~ s/\s+$//;
    }
  }
  push @out, $line;
}
join "\n", @out;
}
EOR

AUTHORS

Interchange Development Group

SEE ALSO

DocBook! Interchange!