Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

I'm trying to parse a text file and convert it to XML. The .txt file consists of a list of entries, separated by line breaks. So, two sample entries look like this:

Leyson, Captain Burr. "With or Without Gadgets." Boys' Life. Nov 19 +49. p. 6. "An old-timer knew what he had to do in a jam. He didn't + need hundreds of those gadgets to guide him to safety." @gauge %tri +vial "The Battle Against Baldness." Kiplinger's Personal Finance. Feb 194 +9. "A little home hair-cutter gadget--a comb with a razor attached-- + has zipped its way into fame in recent months. Barbers pooh-pooh it + as a threat, but sales are going strong." @tool %american

Each entry contains bibliographic data, a quotation from that source, and two sets of tags: a set of primary and secondary classifications, one using @tags and the other using %tags, all on a single line.

The most important information for me to extract from each entry is year and tags. So, I came up with the following script:

#!/usr/bin/perl -w my $year = ""; while (<>) { chomp; if ($_ eq "") {next;} elsif ($_ =~ /^\d\d\d\d$/) { $_ = $year; } else { s/\@(\w*)/ <keyword> $1 <\/keyword>/g; s/\%(\w*)/ <tag> $1 <\/tag>/g; print "<entry>$_ <year> $year </year> </entry>\n"; } }

The @tags and %tags are recognized just fine. Problem is, entries and years are not located. My program doesn't differentiate between entries: I get <entry> at the very beginning of the output and </entry> at the very end. Similarly, there's only a single, blank <year></year> right before </entry>.

I realize there's probably a very simple solution to this, but I'm still at the circumference of a circle, knock-knock-joke stage of perl programming, so your expertise would be very much appreciated. Thanks!


In reply to Converting a Text file to XML by strobodyne

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others rifling through the Monastery: (11)
    As of 2015-07-06 15:11 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (77 votes), past polls