Hi,
I have to search for a string in a variable.
Say the variable is var1='ERROR: Make java] as enabled'
here i want to match which are in red color. other like abc etc could change.
Can you tell me the exact command something like the below in perl
if ($var1=~ m/ERROR: Make... (3 Replies)
Let's say I'm trying to match potentially multiple sets of parentheses. Is there a way in a regular expression to force a match of closing parentheses specifically in the number of the opening parentheses?
For example, if the string is "((foo bar))", I want to be able to say "match any number of... (7 Replies)
I have a few .tex files generated with html2latex. They have some extra \\ that generate error with pdflatex, so I would like to get rid of them.
This
perl -p -i -e s/\\\\//g myfile.tex
with or without simple or double quote remove all of the backslashes, also the single ones needed by tex.
How... (2 Replies)
I'm working on a basic log parser in perl. Input file looks like:
len: 120713
foo
bar
file size of: testdir1/testdir1/testdir1/testdir1/testfile0 is 120713Of course there are tens of thousands of lines... I'm trying to compare the len and filesize values.
#!/usr/bin/perl
use strict;
use... (2 Replies)
Hi Guys,
In the following line:
cn=portal.090710.191533.428571000,cn=groups,dc=mp,dc=rj,dc=gov,dc=br
I need to extract this string: portal.090710.191533.428571000
As you can see this string always will be bettween "cn=" and "," strings.
Someone know one regular expression to... (4 Replies)
I need a way to extract data from
X 4T Solution 21 OCT 2011 37 .00
to account 12345678 User1 user2
X 4T Solution Solution Unlimited 11 Sep 2009 248 .00
to account 87654321 user3 user4
I need it to extract 'X' '37.00' and account number 12345678.
I have extracted above stuff... (3 Replies)
I have two variables,
my $filename = "abc_yyyy_mm_dd.txt";
my $filename1 = " abc_2011_11_07.txt";
I need to perform some operations after checking if $filename has $filename1 in it
i have used the below code,
if($filename =~ /^$filename1/)
{
----
--
} (2 Replies)
i have a script in which i need to skip comments, and i am able to achieve it partially...
IN text file:
{****************************
{test : test...test }
Script:
while (<$fh>)
{
push ( @data, $_);
}
if ( $data =~ m/(^{\*+$)/ ){
}
With the above match i am... (5 Replies)
The sample file:
dept1: user1,user2,user3
dept2: user4,user5,user6
dept3: user7,user8,user9
I want to match by '/^dept2.*/' but don't want to have substring 'dept2:' in output. How to compose such regex? (8 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 PHP
strtr
STRTR(3) 1 STRTR(3)strtr - Translate characters or replace substringsSYNOPSIS
string strtr (string $str, string $from, string $to)
DESCRIPTION
string strtr (string $str, array $replace_pairs)
If given three arguments, this function returns a copy of $str where all occurrences of each (single-byte) character in $from have been
translated to the corresponding character in $to, i.e., every occurrence of $from[$n] has been replaced with $to[$n], where $n is a valid
offset in both arguments.
If $from and $to have different lengths, the extra characters in the longer of the two are ignored. The length of $str will be the same as
the return value's.
If given two arguments, the second should be an array in the form array('from' => 'to', ...). The return value is a string where all the
occurrences of the array keys have been replaced by the corresponding values. The longest keys will be tried first. Once a substring has
been replaced, its new value will not be searched again.
In this case, the keys and the values may have any length, provided that there is no empty key; additionally, the length of the return
value may differ from that of $str. However, this function will be the most efficient when all the keys have the same size.
PARAMETERS
o $str
- The string being translated.
o $from
- The string being translated to $to.
o $to
- The string replacing $from.
o $replace_pairs
- The $replace_pairs parameter may be used instead of $to and $from, in which case it's an array in the form array('from' => 'to',
...).
RETURN VALUES
Returns the translated string.
If $replace_pairs contains a key which is an empty string ( ""), FALSE will be returned. If the $str is not a scalar then it is not type-
casted into a string, instead a warning is raised and NULL is returned.
EXAMPLES
Example #1
strtr(3) example
<?php
//In this form, strtr() does byte-by-byte translation
//Therefore, we are assuming a single-byte encoding here:
$addr = strtr($addr, "aao", "aao");
?>
The next example shows the behavior of strtr(3) when called with only two arguments. Note the preference of the replacements ( "h" is not
picked because there are longer matches) and how replaced text was not searched again.
Example #2
strtr(3) example with two arguments
<?php
$trans = array("h" => "-", "hello" => "hi", "hi" => "hello");
echo strtr("hi all, I said hello", $trans);
?>
The above example will output:
hello all, I said hi
The two modes of behavior are substantially different. With three arguments, strtr(3) will replace bytes; with two, it may replace longer
substrings.
Example #3
strtr(3) behavior comparison
<?php
echo strtr("baab", "ab", "01"),"
";
$trans = array("ab" => "01");
echo strtr("baab", $trans);
?>
The above example will output:
1001
ba01
SEE ALSO str_replace(3), preg_replace(3).
PHP Documentation Group STRTR(3)