string-matching

I have built a nav menu in wordpres using a posts GUID, and post title, I am taking only part of the title and to do this I am doing the following, $casestudylist .= "<li class='subnav'><a href=".$v->guid.">". strstr($v->post_title, ":", true)."</a></li>"; however I get the following warning and cannot work out why: wrong parameter count for strstr() Basically I am trying to pull all the characters out of a string if they are before a : . hakre The PHP version you're using does not support the third parameter of strstr Docs , hence the error message. Your usage of the function requires PHP 5.3

I was able to come up with two different ways to reverse a string in Python. Commonsense dictates that the more lines of code the slower it runs. I made the following lines of code: Code1 "".join(reversed(map(lambda x:x,st))) Code2 st[::-1] These give similar performance. For a 20000 long string I am not able to see a difference of even a millisecond in performance. I think the first one should be a slower approach because it performs 3x more operations. Question Why am I not seeing a performance difference? I see a difference. First of all, what is up with map(lambda x: x, st) ? What is the

I want to check if a word is in a list of words. word = "with" word_list = ["without", "bla", "foo", "bar"] I tried if word in set(list) , but it is not yielding the wanted result due to the fact in is matching string rather than item. That is to say, "with" is a match in any of the words in the word_list but still if "with" in set(list) will say True . What is a simpler way for doing this check than manually iterate over the list ? You could do: found = any(word in item for item in wordlist) It checks each word for a match and returns true if any are matches in is working as expected for an

I have a string buffer of a huge text file. I have to search a given words/phrases in the string buffer. Whats the efficient way to do it ? I tried using re module matches. But As i have a huge text corpus that i have to search through. This is taking large amount of time. Given a Dictionary of words and Phrases. I iterate through the each file, read that into string , search all the words and phrases in the dictionary and increment the count in the dictionary if the keys are found. One small optimization that we thought was to sort the dictionary of phrases/words with the max number of words

My schema: <fieldType name="text" class="solr.TextField" positionIncrementGap="100"> <analyzer> <tokenizer class="solr.WhitespaceTokenizerFactory"/> <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt" enablePositionIncrements="true" /> <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="1" splitOnNumerics="0"/> <filter class="solr.LowerCaseFilterFactory"/> <filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt"/> <

As the title suggests, I'm trying to retrieve the domain from a string using javascript regular expression. Take the following strings: String ==> Return "google" ==> null "google.com" ==> "google.com" "www.google.com" ==> "www.google.com" "ftp://ftp.google.com" ==> "ftp.google.com" "http://www.google.com" ==> "www.google.com" "http://www.google.com/" ==> "www.google.com" "https://www.google.com/" ==> "www.google.com" "https://www.google.com.sg/" ==> "www.google.com.sg" "https://www.google.com.sg/search/" ==> "www.google.com.sg" "*://www.google.com.sg/search/" ==> "www.google.com.sg" I've