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Memory optimization #104

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merged 1 commit into from
Aug 24, 2022
Merged

Memory optimization #104

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24 changes: 16 additions & 8 deletions lib/user_agent_parser/parser.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -38,16 +38,24 @@ def parse(user_agent)
private

def load_patterns(path)
yml = YAML.load_file(path)

# Parse all the regexs
yml.each_pair do |_type, patterns|
patterns.each do |pattern|
pattern[:regex] = Regexp.new(pattern['regex'], pattern['regex_flag'] == 'i')
end
yml = begin
YAML.load_file(path, freeze: true)
rescue ArgumentError
YAML.load_file(path)
end
[
parse_pattern(yml['user_agent_parsers']),
parse_pattern(yml['os_parsers']),
parse_pattern(yml['device_parsers']),
]
end

[yml['user_agent_parsers'], yml['os_parsers'], yml['device_parsers']]
def parse_pattern(patterns)
patterns.map do |pattern|
pattern = pattern.dup
pattern[:regex] = Regexp.new(pattern.delete('regex'), pattern.delete('regex_flag') == 'i')
pattern
end
end

def parse_ua(user_agent, os = nil, device = nil)
Expand Down