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module I18n::Tasks::KeyPatternMatching
MATCH_NOTHING = /\z\A/
# one regex to match any
def compile_patterns_re(key_patterns)
if key_patterns.blank?
# match nothing
MATCH_NOTHING
else
/(?:#{ key_patterns.map { |p| compile_key_pattern p } * '|' })/m
end
end
# convert pattern to regex
# In patterns:
# * is like .* in regexs
# : matches a single key
# {a, b.c} match any in set, can use : and *, match is captured
def compile_key_pattern(key_pattern)
/^#{key_pattern.
gsub(/\./, '\.').
gsub(/\*/, '.*').
gsub(/:/, '(?<=^|\.)[^.]+?(?=\.|$)').
gsub(/\{(.*?)}/) { "(#{$1.strip.gsub /\s*,\s*/, '|'})" }
}$/
end
# @return [Array<String>] keys sans passed patterns
def exclude_patterns(keys, patterns)
pattern_re = compile_patterns_re patterns.select { |p| p.end_with?('.') }
(keys - patterns).reject { |k| k =~ pattern_re }
end
# compile prefix matching Regexp from the list of prefixes
# @return [Regexp] regexp matching any of the prefixes
def compile_start_with_re(prefixes)
if prefixes.blank?
MATCH_NOTHING # match nothing
else
/^(?:#{prefixes.map { |p| Regexp.escape(p) }.join('|')})/
end
end
end
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6 entries across 6 versions & 1 rubygems