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I'm trying to parse words out of a string and put them into an array. I've tried the following thing:
@string1 = "oriented design, decomposition, encapsulation, and testing. Uses " puts @string1.scan(/\s([^\,\.\s]*)/) It seems to do the trick, but it's a bit shaky (I should include more special characters for example). Is there a better way to do so in ruby?
Optional: I have a cs course description. I intend to extract all the words out of it and place them in a string array, remove the most common word in the English language from the array produced, and then use the rest of the words as tags that users can use to search for cs courses.
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The general syntax for using the split method is string. split() . The place at which to split the string is specified as an argument to the method. The split substrings will be returned together in an array.
There is no substring method in Ruby, and hence we rely upon ranges and expressions. If we want to use the range, we have to use periods between the starting and ending index of the substring to get a new substring from the main string.
gsub! is a String class method in Ruby which is used to return a copy of the given string with all occurrences of pattern substituted for the second argument. If no substitutions were performed, then it will return nil. If no block and no replacement is given, an enumerator is returned instead.
To replace a word in string, you do: sentence. gsub(/match/, "replacement") .
The split command.
words = @string1.split(/\W+/) will split the string into an array based on a regular expression. \W means any "non-word" character and the "+" means to combine multiple delimiters.
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For me the best to spliting sentences is:
line.split(/[^[[:word:]]]+/) Even with multilingual words and punctuation marks work perfectly:
line = 'English words, Polski Żurek!!! crème fraîche...' line.split(/[^[[:word:]]]+/) => ["English", "words", "Polski", "Żurek", "crème", "fraîche"] If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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