Regular expression quantifier questions

Posted by Josemalive on Stack Overflow See other posts from Stack Overflow or by Josemalive
Published on 2010-05-05T11:09:38Z Indexed on 2010/05/05 11:28 UTC
Read the original article Hit count: 268

Filed under:

regex

|

boost-regex

Hello,

Im trying to find a regular expression that matches this kind of URL:

http://sub.domain.com/selector/F/13/K/100546/sampletext/654654/K/sampletext_sampletext.html

and dont match this:

http://sub.domain.com/selector/F/13/K/10546/sampletext/5987/K/sample/K/101/sample_text.html

only if the number of /K/ is minimum 1 and maximum 2 (something with a quantifier like {1,2})

Until this moment i have the following regexp:

http://sub\.domain\.com/selector/F/[0-9]{1,2}/[a-z0-9_-]+/

Now i would need a hand to add any kind of condition like:

Match this if in the text appears the /K/ from 1 to 2 times at most.

Thanks in advance.

Best Regards.

Josema

© Stack Overflow or respective owner

Related posts about regex

Find multiple regex in each line and skip result if one of the regex doesn't match

as seen on Stack Overflow - Search for 'Stack Overflow'
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')[:|=|\(](-… >>> More
OWASP Regex Repository: Is this regex correct?

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
Make a Perl-style regex interpreter behave like a basic or extended regex interpreter

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
JS regex isn't matching, even thought it works with a regex tester

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More
c# RegEx with "|"

as seen on Stack Overflow - Search for 'Stack Overflow'
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… >>> More

Related posts about boost-regex

Help with C++ Boost::regex

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello everybody, I'm trying to get all words inside a string using Boost::regex in C++. Here's my input : "Hello there | network - bla bla hoho" using this code : regex rgx("[a-z]+",boost::regex::perl|boost::regex::icase); regex_search(input, result, rgx); for(unsigned int… >>> More
How can I use Boost::regex.hpp library in C++?

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried to use Boost library but I failed, see my code: #include "listy.h" #include <boost/regex.hpp> using namespace boost; ListyCheck::ListyCheck() { } ListyCheck::~ListyCheck() { } bool ListyCheck::isValidItem(std::string &__item) { regex e("(\\d{4}[- ]){3}\\d{4}"); return… >>> More
Basic Boost Regex question

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to write some c++ code that tests if a string is in a particular format. In this program there is a height followed by some decimal numbers: for example "height 123.45" or "height 12" would return true but "SomeOtherString 123.45" would return false. My first attempt at this was to write… >>> More
linking to boost regex in gcc

as seen on Stack Overflow - Search for 'Stack Overflow'
i am trying to compile my program which uses regex on linux. I built the boost library in the libs/regex/build by typing make -fgcc.mak which created a directory gcc which contains the following four files boost_regex-gcc-1_35 boost_regex-gcc-d-1_35 libboost_regex-gcc-1_35.a libboost_regex-gcc-d-1_35… >>> More
Eclipse c++ with mingw comiler cant build boost regex example, can find .a library files

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to build the boost regex example in eclipse using mingw on vista. I built boost ok with mingw as there are library files XXXX.a. I could build/compile the first boost example that doesnt require any of the compiled boost libraries. When I compile the regex example I get a linker error… >>> More