Hi all,
I am trying to match a multi line string and return the matching string in one line. Here is the perl code that I wrote:
#!/usr/bin/perl
my $str='<title>My
title</title>';
if ($str =~ /(<title>)(+)(<\/title>)/ ){
print "$2\n";
}
It returns :
My
title
I want the... (3 Replies)
letz say that my file has 7 records with only one field. So my file has:
11111111
000000000000000
1111
aaaabbbccc
1111111222000000
aaaaaaaa
zz
All i need is:
1. when the field has a repetition of the same instance(a-z or 0-9), i would consideer it to be invalid.... (1 Reply)
Dear all,
I have a simple issue on a perl regular expression. I want to get the characters in red from the next lines :
POWER_key
LEFT_key
RIGHT_key
OK_key
DOWN_key
and so on...
Thanks in advance for reply.
Ludo (1 Reply)
Hi,
I am looking for a Perl regular expression to match the below pattern of a java script file.
var so = object.device.load('camera','value');
I want to grep out such lines present in the *.js files. The conditions are:
a) the line may start with blank space(s)
b) always the... (3 Replies)
Hello,
I am trying to use perl LWP module to read and get a specfic URL page. The issue is that the URL ends with the data and time and time is not consistent it changes all the time. if anyone could help me how to write a regular expressin that would work in the LWP::UserAgent get function to... (0 Replies)
Could you help me with this please. This regular expression seems to match for the wrong input
#!/usr/bin/perl
my $inputtext = "W1a$%XXX";
if($inputtext =~ m/+X+/)
{
print "matches\n";
}
The problem seems to be %. if inputtext is W1a$XXX, the regex doesnot match.... (5 Replies)
I am completely new to perl programming. My father is helping me learn said programming language. However, I am stuck on one of the assignments he has given me, and I can't find very much help with it via google, either because I have a tiny attention span, or because I can be very very dense.
... (4 Replies)
Hi I am doing something basic like...
if ($stringvariable =~ /have not typed/)
I have a little problem because the 'not' in the expression gets highlighted as a kind of a '!'..what am I supposed to do in this situation?
Thank you
---------- Post updated at 03:24 PM ----------... (1 Reply)
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
Discussion started by: jessy83
1 Replies
LEARN ABOUT REDHAT
pic2graph
PIC2GRAPH(1) General Commands Manual PIC2GRAPH(1)NAME
pic2graph - convert a PIC diagram into a cropped image
SYNOPSIS
pic2graph [ -unsafe ] [ -format fmt ] [ -eqn delim ]
DESCRIPTION
Reads a PIC program as input; produces an image file (by default in Portable Network Graphics format) suitable for the Web as output. Also
translates eqn(1) constructs, so it can be used for generating images of mathematical formulae.
PIC is a rather expressive graphics minilanguage suitable for producing box-and-arrow diagrams of the kind frequently used in technical
papers and textbooks. The language is sufficiently flexible to be quite useful for state charts, Petri-net diagrams, flow charts, simple
circuit schematics, jumper layouts, and other kinds of illustration involving repetitive uses of simple geometric forms and splines.
Because PIC descriptions are procedural and object-based, they are both compact and easy to modify.
The PIC language is fully documented in "Making Pictures With GNU PIC", a document which is part of the groff(1) distribution.
Your input PIC code should not be wrapped with the .PS and .PE macros that normally guard it within groff(1) macros.
The output image will be a black-on-white graphic clipped to the smallest possible bounding box that contains all the black pixels. By
specifying command-line options to be passed to convert(1) you can give it a border, set the background transparent, set the image's pixel
density, or perform other useful transformations.
This program uses pic(1), eqn(1), groff(1), gs(1), and the ImageMagick convert(1) program. These programs must be installed on your system
and accessible on your $PATH for pic2graph to work.
OPTIONS -unsafe
Run pic(1) and groff(1) in the `unsafe' mode enabling the PIC macro sh to execute arbitrary commands. The default is to forbid
this.
-format fmt
Specify an output format; the default is PNG (Portable Network Graphics). Any format that convert(1) can emit is supported.
-eqn delim
Change the fencepost characters that delimit eqn(1) directives ($ and $, by default). This option requires an argument, but an
empty string is accepted as a directive to disable eqn(1) processing.
Command-line switches and arguments not listed above are passed to convert(1).
FILES
/usr/share/groff/1.18.1/tmac/eqnrc The eqn(1) initialization file.
SEE ALSO eqn2graph(1), pic(1), eqn(1), groff(1), gs(1), convert(1).
AUTHOR
Eric S. Raymond <esr@thyrsus.com>, based on a recipe by W. Richard Stevens.
Groff Version 1.18.1 17 July 2002 PIC2GRAPH(1)