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Clarrissa-Marybelle - too long to really fit?

Would you christen your child Clarissa-MaryBelle? No, neither would I, but someone might - and there's a name that's so long it won't fit into boxes on forms.

When programming, there's a need to format things to line up, and in a ixed with font / plain text data file, that's done withspae pading - usinf the printf function, the % operator, or the .format method depending on your language. This week, I've been teaching Ruby and used the % operator therein.

Here's a first format - a fixed format using 10 character positions for the name:
  puts "A child called %-10s was born to them" % offspring

Of course, Clarissa-MaryBelle is going to stand out. Tthe "10" is a mimimum field width, so she won't be truncated though. But to get her all lined up, you can do better. A good solution is to search through all the names you need to output, and make up your format string using the longest that yu find.

The search:
  longest = 0
  family.each do |offspring|
    longest < offspring.length and longest = offspring.length
  end


and the print:
  puts "Child %2d called %#{longest}s was born to them" % [osn,offspring]
(which has an extra field too - the chld number - in the output)

Full example, including sample output, [here].
(written 2015-10-23)

 
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RUby - loading, using, changing, storing JSON format data
Scenario outlines - tables of values to test - in Gherkin / Cucumber
Testing your new class - first steps with cucumber
Build up classes into applications sharing data types in Ruby
Clarrissa-Marybelle - too long to really fit?
Melksham - two small townships, or one big one?
RUH Hopper - experience and thoughts forward
Is the RUH hopper a limited, duplicate service running unnecessarily and at high cost?
Method, Class, Module, Package - how to they relate in Python?
RSpec - Ruby testing (stand alone example / no cucumber)
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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