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I have a list of variables:
variables = ['VariableA', 'VariableB','VariableC']
which I'm going to search for, line by line
ifile = open("temp.txt",'r')
d = {}
match = zeros(len(variables))
for line in ifile:
emptyCells=0
for i in range(len(variables)):
regex = r'('+variables[i]+r')[:|=|\(](-…
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I was looking at the regular expression for validating various data types from the (OWASP Regex Repository).
One of the regular expressions in there is called safetext and looks like:
^[a-zA-Z0-9\s.\-]+$
My first question is:
Is this regular expression correct?
complementary question
If this…
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I am writing a tool to help students learn regular expressions. I will probably be writing it in Java.
The idea is this: the student types in a regular expression and the tool shows which parts of a text will get matched by the regex. Simple enough.
But I want to support several different regex…
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I'm writing a piece of client-side javascript code that takes a function and finds the derivative of it, however, the regex that's supposed to match with the power rule fails to work in the context of the javascript program, even though it sucessfully matches when it's used with an independent regex…
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I need to be able to check for a pattern with | in them. For example an expression like d*|*t should return true for a string like "dtest|test".
I'm no regex hero so I just tried a couple of things, like:
Regex Pattern = new Regex("s*\|*d"); //unable to build because of single backslash
Regex Pattern…
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I want to replace the a string with the word string as the following example down , but if a string exist also after comment then a string will replaced too
In which way I can add to the sed command the irregular exp that ignore from the #.
[root@localhost tmp]# more test
a
b
aa
bb
#a
#b
#aa
#bb
[root@localhost…
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Hi,
I am using the following script to search and replace the deprecated functions in a file with the newer ones.
5 for strFile in `ls deprecated_functions_search_and_replace.txt `
6 do
7 sed "s/ereg_replace[^\(]*(\([^,]*\),/preg_replace\1('#'.\2.'#',/g" $strFile > temp_file
8 …
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I have a footer which is set to 100% width, but if i size the window smaller so a horizontal scrollbar appears, using the scrollbar shows whitespace to the right of the footer ... its not spanned 100% of the page, just the viewport.
<!doctype html>
<html lang="en" class="no-js">
<head>
…
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$ sed "s/\(^[a-z,0-9]*\)\(.*\)\( [a-z,0-9]*$\)/\1\2 \1/g" desired_file_name
I apreciate it even if you only explain part of it or at lest structure it with words as in s\alphanumerical_at_start\something\alphanumerical_at_end\something_else\global
Could someone explain what that means, why and…
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Hello there.
I'm having a problem using the sed command . I'm trying to write a bash script that does the following :
search for the line that contain :@
then save the line that contained :@ and replace it with new line
as in the following:
#! /bin/bash
echo "Please enter the ip address…
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