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XTRAN Demonstration:  Analyze HTML Tag & Attribute Usage

XTRAN treats HTML as a computer language, in which each "statement" is a tag, a line or segment of nonmarkup text, or an end tag.  Each attribute of a tag is a "statement attribute".

 Rules:

The following is an English paraphrase of the XTRAN rules used for this example.  These rules comprise 102 (net) lines of XTRAN's rules language.

    For each HTML tag occurrence
        Tally tag occurrence
        For each of tag's attributes if any
            Tally attribute occurrence for tag
    Sort tags
    For each HTML tag seen, alphabetically
        Report tag tally
        Sort attributes for tag
        For each attribute seen for this tag, alphabetically
            Report attribute tally

 Output:

Running these rules on this HTML page generated the following XTRAN analysis output:

                          HTML Tag and Attribute Usage

!DOCTYPE            1
A                   5
    HREF        5
B                   11
BODY                1
    LINK        1
    VLINK       1
BR                  10
FONT                2
    COLOR       1
    FACE        2
    SIZE        2
H3                  1
HEAD                1
HR                  2
    SIZE        2
HTML                1
IMG                 2
    ALT         2
    BORDER      1
    HEIGHT      2
    SRC         2
    WIDTH       2
META                3
    CONTENT     3
    HTTP-EQUIV  1
    NAME        2
P                   7
    ALIGN       1
PRE                 2
TITLE               1

COPYRIGHT 2010; reproduction prohibited without permission.  Revised 2009-09-11

XTRAN is a trademark of Pennington Systems Incorporated.