Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
All,
I am pretty sure this question has been asked before but my Super Search fu is weak.

The Dictionary:

Use the official '2of12inf.txt' file from here stripped of all non-alpha characters and forced to lowercase.

while (<$dict_fh>) { $_ = lc($_); tr/a-z//cd; # ... }

The Input:

The code should accept a file name as a command line argument. The file will contain a list of strings, one on each line. The string needs to be forced to lowercase with all non-alpha characters removed like the dictionary above.

penisland howareyou

The Output:

For each line of input, the code should output all possible substrings (separated by whitespace) with the following constraints:

  • Substrings should appear in the order they appear in the string
  • In other words, the substrings stripped of whitespace should be the input string
  • Every substring should be either exactly a word from the dictionary or a substring containing no word from the dictionary as a further substring
  • "ehim" is an invalid substring because it contains "eh", "hi" and "him" as substrings.
  • All substrings that do not contain a word from the dictionary should be as long as possible
  • "wz" followed by "gt" is not valid because "wzgt" does not contain any word from the dictionary.
  • The list should be ordered with the fewest number of non-word characters then by fewest number of total substrings

Example:

penisland

pen island penis land pen is land penis l land pen is l and

For a somewhat similar challenge, see One for the weekend: challenge. Note: The example above was done by hand and could possibly not include all possibilities.

Cheers - L~R

Update: Clarified constraint two thanks to /msg from ikegami
Update: Clarified example thanks to /msg from blokhead and ikegami

In reply to Challenge: "Words" In A String by Limbic~Region

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others avoiding work at the Monastery: (9)
    As of 2015-07-08 04:01 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (94 votes), past polls