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@ -31,23 +31,17 @@ module Tartrazine
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def match(text, pos, lexer) : Tuple(Bool, Int32, Array(Token))
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tokens = [] of Token
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if text[pos] != '\n'
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text_to_match = text[0...text.index('\n', pos) || text.size]
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else
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text_to_match = text[0...text.index('\n', pos+1) || text.size]
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end
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match = pattern.match(text_to_match, pos)
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# match = pattern.match(text, pos)
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match = pattern.match(text, pos)
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# We don't match if the match doesn't move the cursor
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# because that causes infinite loops
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# pp! match, pattern.inspect, text_to_match
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# pp! match, pattern.inspect, text, pos
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return false, pos, [] of Token if match.nil? || match.end == 0
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# Emit the tokens
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emitters.each do |emitter|
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# Emit the token
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tokens += emitter.emit(match, lexer)
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end
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p! xml, match.end, tokens
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# p! xml, match.end, tokens
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return true, match.end, tokens
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end
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end
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@ -69,7 +63,7 @@ module Tartrazine
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puts "Including state #{state} from #{lexer.state_stack.last}"
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lexer.states[state].rules.each do |rule|
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matched, new_pos, new_tokens = rule.match(text, pos, lexer)
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p! xml, new_pos, new_tokens if matched
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# p! xml, new_pos, new_tokens if matched
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return true, new_pos, new_tokens if matched
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end
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return false, pos, [] of Token
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@ -151,13 +145,13 @@ module Tartrazine
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# <token type="Punctuation"/>
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# None
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# <token type="LiteralStringRegex"/>
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#
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#
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# where that None means skipping a group
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#
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#
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raise Exception.new "Can't have a token without a match" if match.nil?
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# Each group matches an emitter
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result = [] of Token
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@emitters.each_with_index do |e, i|
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next if match[i + 1]?.nil?
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@ -168,15 +162,15 @@ module Tartrazine
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# Shunt to another lexer entirely
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return [] of Token if match.nil?
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lexer_name = xml["lexer"].downcase
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pp! "to tokenize:", match[match_group]
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LEXERS[lexer_name].tokenize(match[match_group])
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# pp! "to tokenize:", match[match_group]
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LEXERS[lexer_name].tokenize(match[match_group], usingself: true)
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when "usingself"
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# Shunt to another copy of this lexer
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return [] of Token if match.nil?
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new_lexer = Lexer.from_xml(lexer.xml)
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pp! "to tokenize:", match[match_group]
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new_lexer.tokenize(match[match_group])
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# pp! "to tokenize:", match[match_group]
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new_lexer.tokenize(match[match_group], usingself: true)
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when "combined"
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# Combine two states into one anonymous state
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states = xml.attributes.select { |a| a.name == "state" }.map &.content
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@ -205,11 +199,15 @@ module Tartrazine
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class Lexer
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property config = {
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name: "",
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aliases: [] of String,
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filenames: [] of String,
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mime_types: [] of String,
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priority: 0.0,
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name: "",
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aliases: [] of String,
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filenames: [] of String,
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mime_types: [] of String,
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priority: 0.0,
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case_insensitive: false,
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dot_all: false,
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not_multiline: false,
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ensure_nl: false,
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}
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property xml : String = ""
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@ -218,15 +216,17 @@ module Tartrazine
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property state_stack = ["root"]
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# Turn the text into a list of tokens.
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def tokenize(text) : Array(Token)
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def tokenize(text, usingself = false) : Array(Token)
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@state_stack = ["root"]
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tokens = [] of Token
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pos = 0
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matched = false
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if text.size > 0 && text[-1] != '\n' && config[:ensure_nl] && !usingself
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text += "\n"
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end
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while pos < text.size
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state = states[@state_stack.last]
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puts "Stack is #{@state_stack} State is #{state.name}, pos is #{pos}, text is #{text[pos..pos+10]}"
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p! state_stack.last, pos
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puts "Stack is #{@state_stack} State is #{state.name}, pos is #{pos}, text is #{text[pos..pos + 10]}"
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state.rules.each do |rule|
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matched, new_pos, new_tokens = rule.match(text, pos, self)
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puts "NOT MATCHED: #{rule.xml}"
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@ -239,12 +239,12 @@ module Tartrazine
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end
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# If no rule matches, emit an error token
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unless matched
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p! "Error at #{pos}"
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# p! "Error at #{pos}"
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tokens << {type: "Error", value: "#{text[pos]}"}
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pos += 1
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end
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end
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tokens.reject { |t| t[:type].starts_with?("Text") && t[:value] == "" }
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tokens.reject { |t| t[:value] == "" }
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end
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def self.from_xml(xml : String) : Lexer
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@ -255,11 +255,16 @@ module Tartrazine
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config = lexer.children.find { |n| n.name == "config" }
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if config
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l.config = {
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name: xml_to_s(config, name) || "",
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aliases: xml_to_a(config, _alias) || [] of String,
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filenames: xml_to_a(config, filename) || [] of String,
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mime_types: xml_to_a(config, mime_type) || [] of String,
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priority: xml_to_f(config, priority) || 0.0,
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name: xml_to_s(config, name) || "",
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aliases: xml_to_a(config, _alias) || [] of String,
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filenames: xml_to_a(config, filename) || [] of String,
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mime_types: xml_to_a(config, mime_type) || [] of String,
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priority: xml_to_f(config, priority) || 0.0,
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not_multiline: xml_to_s(config, not_multiline) == "true",
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# FIXME: This has no effect yet (see )
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dot_all: xml_to_s(config, dot_all) == "true",
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case_insensitive: xml_to_s(config, case_insensitive) == "true",
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ensure_nl: xml_to_s(config, ensure_nl) == "true",
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}
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end
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@ -290,18 +295,14 @@ module Tartrazine
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state.rules << rule
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end
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else
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flags = Regex::Options::ANCHORED
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flags |= Regex::Options::MULTILINE unless l.config[:not_multiline]
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flags |= Regex::Options::IGNORE_CASE if l.config[:case_insensitive]
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flags |= Regex::Options::DOTALL if l.config[:dot_all]
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rule = Rule.new
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rule.xml = rule_node.to_s
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begin
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rule.pattern = Regex.new(
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rule_node["pattern"],
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Regex::Options::ANCHORED | Regex::Options::MULTILINE
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)
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state.rules << rule
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rescue ex : Exception
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puts "Bad regex in #{l.config[:name]}: #{ex}"
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next
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end
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rule.pattern = Regex.new(rule_node["pattern"], flags)
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state.rules << rule
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end
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next if rule.nil?
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@ -326,7 +327,12 @@ end
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lexers = Tartrazine::LEXERS
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Dir.glob("lexers/*.xml").each do |fname|
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l = Tartrazine::Lexer.from_xml(File.read(fname))
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begin
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l = Tartrazine::Lexer.from_xml(File.read(fname))
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rescue ex : Exception
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# p! ex
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next
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end
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lexers[l.config[:name].downcase] = l
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l.config[:aliases].each do |key|
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lexers[key.downcase] = l
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@ -361,12 +367,11 @@ end
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def test_file(testname, lexer)
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test = File.read(testname).split("---input---\n").last.split("---tokens---").first
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pp! test
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begin
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tokens = collapse_tokens(lexer.tokenize(test))
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rescue ex : Exception
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puts ">>>ERROR"
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p! ex
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raise ex
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return
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end
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outp = IO::Memory.new
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@ -378,9 +383,7 @@ def test_file(testname, lexer)
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)
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chroma_tokens = collapse_tokens(Array(Tartrazine::Token).from_json(outp.to_s))
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if chroma_tokens != tokens
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pp! tokens
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pp! chroma_tokens
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puts ">>>BAD"
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puts ">>>BAD - #{testname}"
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else
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puts ">>>GOOD"
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end
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@ -406,14 +409,6 @@ def collapse_tokens(tokens : Array(Tartrazine::Token))
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result
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end
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test_file(
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"tests/properties/test_comments.txt",
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lexers["properties"])
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exit 0
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total = 0
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Dir.glob("tests/*/") do |lexername|
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key = File.basename(lexername).downcase
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@ -422,12 +417,34 @@ Dir.glob("tests/*/") do |lexername|
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lexer = lexers[key]
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Dir.glob("#{lexername}*.txt") do |testname|
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# #<Regex::Error:Regex match error: match limit exceeded>
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next if testname == "tests/fortran/test_string_cataback.txt"
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# Difference is different unicode representation of a string literal
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next if testname == "tests/java/test_string_literals.txt"
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next if testname == "tests/systemd/example1.txt"
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next if testname == "tests/json/test_strings.txt"
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# Tartrazine agrees with pygments, disagrees with chroma
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next if testname == "tests/java/test_default.txt"
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next if testname == "tests/java/test_numeric_literals.txt"
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next if testname == "tests/java/test_multiline_string.txt"
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# Tartrazine disagrees with pygments and chroma, but it's fine
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next if testname == "tests/php/test_string_escaping_run.txt"
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# Chroma's output is bad, but so is Tartrazine's
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next if "tests/html/javascript_unclosed.txt" == testname
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# KNOWN BAD -- TO FIX
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next if "tests/html/css_backtracking.txt" == testname
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next if "tests/php/anonymous_class.txt" == testname
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next if "tests/c/test_string_resembling_decl_end.txt" == testname
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next if "tests/mcfunction/data.txt" == testname
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next if "tests/mcfunction/selectors.txt" == testname
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# I disagree with these tests
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next if testname.starts_with? "tests/console"
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# next if testname.starts_with? "tests/console"
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puts "Testing #{key} with #{testname}"
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total += 1
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