By Mark Riehl
ISBN-10: 0735712891
ISBN-13: 9780735712898
When you are a Perl programmer seeking to discover Perl's XML features or an XML developer with a uncomplicated realizing of Perl, this publication gives you all of the instruments required for XML processing with Perl. XML and Perl teaches you to create transportable, robust, and extensible purposes should you use XML and Perl jointly. you will additionally discover ways to customise your XML processing amenities to complete designated tasks.Authors Mark Riehl and Ilya Sterin, who've written Perl XML modules and administer the reputable Perl XML website (www.perlxml.net), have stuffed this ebook with useful code samples and workouts to help you attempt force your new wisdom. With this publication, you are going to fast see some great benefits of utilizing XML and Perl jointly, and you will be in a position to practice even advanced initiatives extra simply with strong Perl XML modules.
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While you are a Perl programmer seeking to discover Perl's XML features or an XML developer with a easy knowing of Perl, this publication will give you the entire instruments required for XML processing with Perl. XML and Perl teaches you to create moveable, robust, and extensible functions if you happen to use XML and Perl jointly.
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Extra resources for XML and Perl
Sample text
15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. csv while(
6. 7. 8. 9. 10. 11. 12. use strict; # Load the XML::Simple module use XML::Simple; # Call XML::Simple's new constructor function to create an # XML::Simple object and get the reference. xml and return a data structure. xml", forcearray => 1, keeproot => 1); 19 38 The second half of the program actually performs all the work. First, we open the output HTML file and print the initial required HTML tags. Then, we loop through an array of references to data structures that contain the information from the XML file.
43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 48 use strict; use XML::Parser; my $parser = XML::Parser->new(Style => 'Stream', Handlers => {Init => Start => Char => End => Final => \&init, \&start, \&char, \&end, \&final}); $parser->parsefile(shift); #################################### # These variables keep track # # of each distribution data, and # # are reset at each distribution. # # # my $dist_count = 0; # my $dist_cost = 0; # my $dist_out = 0; # #################################### #################################### # These variables keep track # # of the totals which are # # accumulated throughout the # # parsing process # # # my $total_count = 0; # my $total_cost = 0; # my $total_out = 0; # #################################### my $curr_val = ""; ## Retains the text value ## within the current node my @os_avail = (); ## An array of available ## operating systems sub init { my $e = shift; print "\n***** Software Inventory Report *****\n"; print "-------------------------------------\n\n"; } sub start{ my ($e, $tag, %attr) = @_; if ($tag eq "distribution") { print "*$attr{name} (version $attr{version})*\n"; } elsif ($tag eq "os") { push($attr{name}, @os_avail); } } sub char { my ($e, $string) = @_; $curr_val = $string; } Part II: Parsing XML Documents Using Perl Part II: Parsing XML Documents Using Perl 62.
XML and Perl by Mark Riehl
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