README.md (1630B)
1 # Isogram 2 3 Determine if a word or phrase is an isogram. 4 5 An isogram (also known as a "nonpattern word") is a word or phrase without a repeating letter, however spaces and hyphens are allowed to appear multiple times. 6 7 Examples of isograms: 8 9 - lumberjacks 10 - background 11 - downstream 12 - six-year-old 13 14 The word *isograms*, however, is not an isogram, because the s repeats. 15 16 ## Getting Started 17 18 Make sure you have read the "Guides" section of the 19 [C track](https://exercism.io/my/tracks/c) on the Exercism site. This covers 20 the basic information on setting up the development environment expected 21 by the exercises. 22 23 24 ## Passing the Tests 25 26 Get the first test compiling, linking and passing by following the [three 27 rules of test-driven development][3-tdd-rules]. 28 29 The included makefile can be used to create and run the tests using the `test` 30 task. 31 32 make test 33 34 Create just the functions you need to satisfy any compiler errors and get the 35 test to fail. Then write just enough code to get the test to pass. Once you've 36 done that, move onto the next test. 37 38 [3-tdd-rules]: http://butunclebob.com/ArticleS.UncleBob.TheThreeRulesOfTdd 39 40 As you progress through the tests, take the time to refactor your 41 implementation for readability and expressiveness and then go on to the next 42 test. 43 44 Try to use standard C99 facilities in preference to writing your own 45 low-level algorithms or facilities by hand. 46 47 ## Source 48 49 Wikipedia [https://en.wikipedia.org/wiki/Isogram](https://en.wikipedia.org/wiki/Isogram) 50 51 ## Submitting Incomplete Solutions 52 It's possible to submit an incomplete solution so you can see how others have completed the exercise.