NAME¶
Image::ExifTool::BuildTagLookup - Build ExifTool tag lookup tables
DESCRIPTION¶
This module is used to generate the tag lookup tables in
Image::ExifTool::TagLookup.pm and tag name documentation in
Image::ExifTool::TagNames.pod, as well as HTML tag name documentation. It is
used before each new ExifTool release to update the lookup tables and
documentation, but it is not used otherwise. It also performs some validation
and consistency checks on the tag tables.
SYNOPSIS¶
use Image::ExifTool::BuildTagLookup;
$builder = new Image::ExifTool::BuildTagLookup;
# update Image::ExifTool::TagLookup
$ok = $builder->WriteTagLookup('lib/Image/ExifTool/TagLookup.pm');
# update the tag name documentation
$ok = $builder->WriteTagNames('lib/Image/ExifTool/TagNames.pod','html');
# print some statistics
my $count = $$builder{COUNT};
foreach (sort keys %$count) {
printf "%5d %s\n", $$count{$_}, $_;
}
MEMBER VARIABLES¶
- PRESERVE_DATE
- Flag to preserve "Last revised" date in HTML files. Set before
calling WriteTagNames().
- COUNT
- Reference to hash containing counting statistics. Keys are the
descriptions, and values are the numerical counts. Valid after
BuildTagLookup object is created, but additional statistics are added by
WriteTagNames().
- WRITE_PSEUDO
- List of writable pseudo tags.
AUTHOR¶
Copyright 2003-2018, Phil Harvey (phil at owl.phy.queensu.ca)
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
SEE ALSO¶
Image::ExifTool(3pm), Image::ExifTool::TagLookup(3pm),
Image::ExifTool::TagNames(3pm)