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Versions: 8
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Stored size: 1.54 KB
Contents
# frozen_string_literal: true
require_relative 'lexers_db'
module Snibbets
# Lexer definitions
module Lexers
class << self
def lexers
@lexers ||= build_lexers
end
def build_lexers
lex = []
LEXERS_DB.split(/\n/).each do |line|
key = line.match(/(?mi)^((, )?[^,]+?)+?(?=\[)/)[0]
keys = key.split(/,/).map(&:strip)
value = line.match(/\[(.*?)\]/)[1]
values = value.split(/,/).map(&:strip)
lex << {
lexer: keys.shift,
aliases: keys,
extensions: values
}
end
lex
end
def skylight_lexer?(lexer)
SKYLIGHT_LEXERS_DB.split(/\n/).include?(lexer)
end
def normalize_lexer(lexer)
matches = LEXER_NORMALIZERS.select { |k, v| v.include? lexer }
matches.count.positive? ? matches.keys[0] : lexer
end
def ext_to_lang(ext)
return nil if ext.nil?
matches = lexers.select { |lex| lex[:extensions].map(&:downcase).include?(ext.downcase) }
matches.map { |lex| lex[:lexer] }.first || ext
end
def lang_to_ext(lexer)
return nil if lexer.nil?
matches = lexers.select { |lex| lex[:lexer] == lexer || lex[:aliases].map(&:downcase).include?(lexer.downcase) }
matches.map { |lex| lex[:extensions].first }.first || lexer
end
def syntax_from_extension(filename)
exts = filename.split(/\./)[1..-2]
return nil if exts.count.zero?
ext_to_lang(exts[-1])
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems