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Contents
module JavaProperties
module Parsing
# Module to normalize the content of a properties file
#
# @example Normalizes:
# # Comment 1
# ! Comment 2
# item0
# item1 = item1
# item2 : item2
# item3=line 1 \
# line 2
#
# @example Into:
#
# item0
# item1=item1
# item2=item2
# item3=line 1 line 2
#
module Normalizer
# Describes a single normalization rule by replacing content
class Rule
# Initializes a new rules base on a matching regexp
# and a replacement as substitution
# @param matcher [Regexp]
# @param replacement [String]
def initialize(matcher, replacement = '')
@matcher = matcher
@replacement = replacement
end
# Apply the substitution to the text in place
# @param text [string]
# @return [String]
def apply!(text)
text.gsub!(@matcher, @replacement)
end
end
# Collection of ordered rules
RULES = []
# Removes comments
RULES << Rule.new(/^\s*[!\#].*$/)
# Removes leading whitepsace
RULES << Rule.new(/^\s+/)
# Removes tailing whitepsace
RULES << Rule.new(/\s+$/)
# Strings ending with \ are concatenated
RULES << Rule.new(/\\\s*$[\n\r]+/)
# Remove whitespace around delimiters and replace with =
RULES << Rule.new(/^((?:(?:\\[=: \t])|[^=: \t])+)[ \t]*[=: \t][ \t]*/, '\1=')
RULES.freeze
# Normalizes the content of a properties file content by applying the RULES
# @param text [String]
# @return [String]
def self.normalize!(text)
RULES.each do |rule|
rule.apply!(text)
end
text
end
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems