A trick for the global matching that I have had occasion
to use in the past.
I was trying to parse a fixed delimited report. But the
locations of the columns was not fixed. However there
was a header, something like this:
Here Be Many Columns
-------- ---------- ---------
To locate the positioning of the columns I found the
line with the underlines and then:
my @space_loc;
while ($line =~ / /g) {
push @space_loc, pos($line);
}
You can also put together a small "parse engine" as a
demo of \G matching. Handling the CSV spec might be a
good example.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|