Last change
on this file since 30903 was 30903, checked in by davidb, 8 years ago |
Vagrant provisioning files for a 4-node Hadoop cluster. See README.txt for more details
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File size:
1.0 KB
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1 | #
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2 | # chop.rb
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3 | #
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4 |
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5 | module Puppet::Parser::Functions
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6 | newfunction(:chop, :type => :rvalue, :doc => <<-'EOS'
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7 | Returns a new string with the last character removed. If the string ends
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8 | with `\r\n`, both characters are removed. Applying chop to an empty
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9 | string returns an empty string. If you wish to merely remove record
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10 | separators then you should use the `chomp` function.
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11 | Requires a string or array of strings as input.
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12 | EOS
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13 | ) do |arguments|
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14 |
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15 | raise(Puppet::ParseError, "chop(): Wrong number of arguments " +
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16 | "given (#{arguments.size} for 1)") if arguments.size < 1
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17 |
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18 | value = arguments[0]
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19 |
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20 | unless value.is_a?(Array) || value.is_a?(String)
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21 | raise(Puppet::ParseError, 'chop(): Requires either an ' +
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22 | 'array or string to work with')
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23 | end
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24 |
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25 | if value.is_a?(Array)
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26 | # Numbers in Puppet are often string-encoded which is troublesome ...
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27 | result = value.collect { |i| i.is_a?(String) ? i.chop : i }
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28 | else
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29 | result = value.chop
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30 | end
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31 |
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32 | return result
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33 | end
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34 | end
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35 |
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36 | # vim: set ts=2 sw=2 et :
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