Class: Cmdlet::StringTokenizer

Inherits:
Object
  • Object
show all
Defined in:
lib/cmdlet/string_tokenizer.rb

Overview

String tokenizer will clean up a string so that all sorts of formatted strings can be represented in a consistent fashion

Instance Method Summary collapse

Instance Method Details

#parse(value, preserve_case: false, compress_prefix_numerals: true, compress_suffix_numerals: true, separator: '-', forced_separator: false) ⇒ Object

Tokenize string rubocop:disable Metrics/ParameterLists



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
 
# File 'lib/cmdlet/string_tokenizer.rb', line 11

def parse(value,
          preserve_case: false,
          compress_prefix_numerals: true,
          compress_suffix_numerals: true,
          separator: '-',
          forced_separator: false)
  return '' if value.nil?

  # Insert space before any lowercaseUppercase
  value = value.gsub(/(?<=[a-z])(?=[A-Z])/, ' ')

  # make sure that any numbers followed by space and then some text has the white space removed
  value = value.gsub(/^(\d*)(\s*)/, '\1') if compress_prefix_numerals

  # Technique1: make sure that trailing space followed by number is compressed
  # NOTE: named groups don't seem to work with \1, \2 etc.
  # ex = /(?<space>[\s]*)(?<number>[\d]*)$/
  # value  =value.sub(ex) { |_| Regexp.last_match[:number] }

  # Technique2: make sure that trailing space followed by number is compressed
  value = value.gsub(/(\s*)(\d*)$/, '\2') if compress_suffix_numerals

  value = value.parameterize(preserve_case: preserve_case, separator: separator) # (separator: ' ')

  value = value.gsub(/[-_]/, separator) if forced_separator

  value
end