user
Task

Using the dictionary   unixdict.txt,   find words which odd letters are consonants and even letters are vowels or vice versa.
  
Display the words here (on this page).

The length of any word shown should have a length   **> 9****.**

Other tasks related to string operations:

Metrics

* Array length
* String length
* Copy a string
* Empty string  (assignment)

Counting

* Word frequency
* Letter frequency
* Jewels and stones
* I before E except after C
* Bioinformatics/base count
* Count occurrences of a substring
* Count how many vowels and consonants occur in a string

Remove/replace

* XXXX redacted
* Conjugate a Latin verb
* Remove vowels from a string
* String interpolation (included)
* Strip block comments
* Strip comments from a string
* Strip a set of characters from a string
* Strip whitespace from a string -- top and tail
* Strip control codes and extended characters from a string

Anagrams/Derangements/shuffling

* Word wheel
* ABC problem
* Sattolo cycle
* Knuth shuffle
* Ordered words
* Superpermutation minimisation
* Textonyms (using a phone text pad)
* Anagrams
* Anagrams/Deranged anagrams
* Permutations/Derangements

Find/Search/Determine

* ABC words
* Odd words
* Word ladder
* Semordnilap
* Word search
* Wordiff  (game)
* String matching
* Tea cup rim text
* Alternade words
* Changeable words
* State name puzzle
* String comparison
* Unique characters
* Unique characters in each string
* Extract file extension
* Levenshtein distance
* Palindrome detection
* Common list elements
* Longest common suffix
* Longest common prefix
* Compare a list of strings
* Longest common substring
* Find common directory path
* Words from neighbour ones
* Change e letters to i in words
* Non-continuous subsequences
* Longest common subsequence
* Longest palindromic substrings
* Longest increasing subsequence
* Words containing "the" substring
* Sum of the digits of n is substring of n
* Determine if a string is numeric
* Determine if a string is collapsible
* Determine if a string is squeezable
* Determine if a string has all unique characters
* Determine if a string has all the same characters
* Longest substrings without repeating characters
* Find words which contains all the vowels
* Find words which contain the most consonants
* Find words which contains more than 3 vowels
* Find words whose first and last three letters are equal
* Find words with alternating vowels and consonants

Formatting

* Substring
* Rep-string
* Word wrap
* String case
* Align columns
* Literals/String
* Repeat a string
* Brace expansion
* Brace expansion using ranges
* Reverse a string
* Phrase reversals
* Comma quibbling
* Special characters
* String concatenation
* Substring/Top and tail
* Commatizing numbers
* Reverse words in a string
* Suffixation of decimal numbers
* Long literals, with continuations
* Numerical and alphabetical suffixes
* Abbreviations, easy
* Abbreviations, simple
* Abbreviations, automatic

Song lyrics/poems/Mad Libs/phrases

* Mad Libs
* Magic 8-ball
* 99 bottles of beer
* The Name Game (a song)
* The Old lady swallowed a fly
* The Twelve Days of Christmas

Tokenize

* Text between
* Tokenize a string
* Word break problem
* Tokenize a string with escaping
* Split a character string based on change of character

Sequences

* Show ASCII table
* De Bruijn sequences
* Summarize and say sequence
* Generate lower case ASCII alphabet
assistant
Sigh. Yet another "Filter a word list" task. In a effort to make it a *little* more interesting, rather than just doing a one-liner, build a grammar and use that to filter.

```
grammar VOWCON {
    token       TOP { <|w> <vowel>? ( <consonant> <vowel> )* <consonant>? <|w> }
    token     vowel { <[aeiou]> }
    token consonant { <[a..z] - [aeiou]> }
}

say ( grep { VOWCON.parse: .lc }, grep { .chars > 9 }, 'unixdict.txt'.IO.words ).batch(6)».fmt('%-15s').join: "\n";

```

Output:

```
aboriginal      apologetic      bimolecular     borosilicate    calorimeter     capacitate     
capacitive      capitoline      capitulate      caricature      colatitude      coloratura     
colorimeter     debilitate      decelerate      decolonize      definitive      degenerate     
deliberate      demodulate      denominate      denotative      deregulate      desiderata     
desideratum     dilapidate      diminutive      epigenetic      facilitate      hemosiderin    
heretofore      hexadecimal     homogenate      inoperative     judicature      latitudinal    
legitimate      lepidolite      literature      locomotive      manipulate      metabolite     
nicotinamide    oratorical      paragonite      pejorative      peridotite      peripatetic    
polarimeter     recitative      recuperate      rehabilitate    rejuvenate      remunerate     
repetitive      reticulate      savonarola      similitude      solicitude      tananarive     
telekinesis     teratogenic     topologize      unilateral      unimodular      uninominal     
verisimilitude
```