First of all, please have mercy on me. I am not a noob to programming, but I am about as noob as you can get with regex. That being said, I have a problem.
I've got a string that looks something like this:
And I want to format it so that it looks like this:
I've been trying to figure out 'sed', but for the life of me I can't understand regular expressions.
All I was able to come up with was this:
But that doesn't work at all, and it probably has as many syntax errors as possible.
I realize that it may seem that I'm lazy and just want somebody to do this for me, but I am here to learn!
Hi, I'm working on gathering information stored in .txt files. The format of the data within the .txt files is shown in the picture uploaded with this post. Sections like the one pictured are repeated (with different data, same format) many times within each .txt file but each section is of data... (4 Replies)
Hi All,
I have the below scenario in my environment
Developers used to copy file from windows to Linux box. Some time on the copied file developers miss to run the dos2unix utility. Because of this script gets failed during the execution. Most of the failures are due to the dos2unix format... (7 Replies)
Hi the below perl snippet will replace any three letter string in the beginning with a two letter string which is specified..but if i want to modfiy only certain characters for eg..
ABC - AB
CAB - AB
AAA - No Modifcations
1AB - AB
AB8 - AB
Whatever coming before or after of AB only have... (2 Replies)
Hello,
Splitting a sentence using the full-stop/question-mark/exclamation is a common device. Whereas the question-mark / exclamation do not pose too much of a problem; the full-stop as a sentence delimiter raises certain issues because of its varied use:
just to name a few.
Standard parsers... (9 Replies)
I am interested in finding a regex to find a word in second position on a line. The word in question is या
I tried the following PERL EXPRESSION but it did not work:
] या
or
^\W या
But both gave Null results
I am giving below a Sample file:
देना या सौंपना=delegate
तह जमना या... (8 Replies)
Gurus,
I have a data file which has a certain number of columns say 101. It has one description column which contains foreign characters and due to this some times, those special characters are translated to new line character and resulting in failing the process.
I am using the following awk... (4 Replies)
Hello,
I have a dictionary which I am building for the Open Source Community. The data structure is as under
HEADWORD=PARTOFSPEECH=ENGLISH MEANING
as shown in the example below
अ=m=Prefix signifying negation.
अँहँ=ind=Interjection expressing disapprobation.
अं=int=An interjection... (2 Replies)
I am working on Sindhi: a perso-Arabic script and since it shares the Unicode-block with over 400 other languages, quite often the database contains characters which are not wanted: illegal characters.
I have identified the character set of Sindhi which is given below:
For clarity's sake, each... (8 Replies)
Hi
In a file I have string in multiple lines. Like below:
<?=test.getObjectName("L", "testTBL","D") ?>
<?=test.getObjectName("L", "testTBL","testDB", "D") ?>
I want to use regex to search for the pattern "<?=test.getObjectName...?>"
If the parenthesis has 3 parameters then return 2nd... (5 Replies)
Hi,
I need some guidance with understanding this Perl script below. I am not the author of the script and the author has not leave any documentation. I supposed it is meant to be 'easy' if you're a Perl or regex guru. I am having problem understanding what regex to use :confused: The script does... (3 Replies)
Discussion started by: newbie_01
3 Replies
LEARN ABOUT DEBIAN
graphviz::regex
GraphViz::Regex(3pm) User Contributed Perl Documentation GraphViz::Regex(3pm)NAME
GraphViz::Regex - Visualise a regular expression
SYNOPSIS
use GraphViz::Regex;
my $regex = '(([abcd0-9])|(foo))';
my $graph = GraphViz::Regex->new($regex);
print $graph->as_png;
DESCRIPTION
This module attempts to visualise a Perl regular expression. Understanding regular expressions is tricky at the best of times, and regexess
almost always evolve in ways unforseen at the start. This module aims to visualise a regex as a graph in order to make the structure clear
and aid in understanding the regex.
The graph visualises how the Perl regular expression engine attempts to match the regex. Simple text matches or character classes are
represented by.box-shaped nodes. Alternations are represented by a diamond-shaped node which points to the alternations. Repetitions are
represented by self-edges with a label of the repetition type (the nodes being repeated are pointed to be a full edge, a dotted edge points
to what to match after the repetition). Matched patterns (such as $1, $2, etc.) are represented by a 'START $1' .. 'END $1' node pair.
This uses the GraphViz module to draw the graph.
METHODS
new
This is the constructor. It takes one mandatory argument, which is a string of the regular expression to be visualised. A GraphViz object
is returned.
my $graph = GraphViz::Regex->new($regex);
as_*
The regex can be visualised in a number of different graphical formats. Methods include as_ps, as_hpgl, as_pcl, as_mif, as_pic, as_gd,
as_gd2, as_gif, as_jpeg, as_png, as_wbmp, as_ismap, as_imap, as_vrml, as_vtx, as_mp, as_fig, as_svg. See the GraphViz documentation for
more information. The two most common methods are:
# Print out a PNG-format file
print $g->as_png;
# Print out a PostScript-format file
print $g->as_ps;
BUGS
Note that this module relies on debugging information provided by Perl, and is known to fail on at least two versions of Perl: 5.005_03 and
5.7.1. Sorry about that - please use a more recent version of Perl if you want to use this module.
AUTHOR
Leon Brocard <acme@astray.com>
COPYRIGHT
Copyright (C) 2000-1, Leon Brocard
This module is free software; you can redistribute it or modify it under the same terms as Perl itself.
perl v5.14.2 2012-04-02 GraphViz::Regex(3pm)