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Contents
# coding: utf-8
require 'i18n/tasks/scanners/base_scanner'
module I18n::Tasks::Scanners
# Scans for I18n.t usages
#
class PatternScanner < BaseScanner
# Extract i18n keys from file based on the pattern which must capture the key literal.
# @return [Array<Key>] keys found in file
def scan_file(path, opts = {})
keys = []
strict = !!opts[:strict]
text = opts[:text] || read_file(path)
text.scan(pattern) do |match|
src_pos = Regexp.last_match.offset(0).first
key = match_to_key(match, path)
next unless valid_key?(key, strict)
location = src_location(path, text, src_pos)
unless exclude_line?(location[:line])
keys << [key, data: location]
end
end
keys
end
def default_pattern
# capture only the first argument
/
#{translate_call_re} [\( ] \s* (?# fn call begin )
(#{literal_re}) (?# capture the first argument)
/x
end
protected
# Given
# @param [MatchData] match
# @param [String] path
# @return [String] full absolute key name
def match_to_key(match, path)
key = strip_literal(match[0])
key = key + '*' if key.end_with?('.')
key = absolutize_key(key, path) if path && key.start_with?('.')
key
end
def pattern
@pattern ||= config[:pattern].present? ? Regexp.new(config[:pattern]) : default_pattern
end
def translate_call_re
/(?<=^|[^\w'\-])t(?:ranslate)?/
end
# Match literals:
# * String: '', "#{}"
# * Symbol: :sym, :'', :"#{}"
def literal_re
/:?".+?"|:?'.+?'|:\w+/
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems