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RAGEL_SOURCE_DIR = File.join(__dir__, '../lib/regexp_parser/scanner')
RAGEL_OUTPUT_DIR = File.join(__dir__, '../lib/regexp_parser')
RAGEL_SOURCE_FILES = %w[scanner] # scanner.rl imports the other files
namespace :ragel do
desc 'Process the ragel source files and output ruby code'
task :rb do
RAGEL_SOURCE_FILES.each do |source_file|
output_file = "#{RAGEL_OUTPUT_DIR}/#{source_file}.rb"
# using faster flat table driven FSM, about 25% larger code, but about 30% faster
sh "ragel -F1 -R #{RAGEL_SOURCE_DIR}/#{source_file}.rl -o #{output_file}"
contents = File.read(output_file)
File.open(output_file, 'r+') do |file|
contents = "# -*- warn-indent:false; -*-\n" + contents
file.write(contents)
end
end
end
desc 'Delete the ragel generated source file(s)'
task :clean do
RAGEL_SOURCE_FILES.each do |file|
sh "rm -f #{RAGEL_OUTPUT_DIR}/#{file}.rb"
end
end
end
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