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@@ -1,5 +1,6 @@
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require "baked_file_system"
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require "./constants/lexers"
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require "./heuristics"
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require "baked_file_system"
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module Tartrazine
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class LexerFiles
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@@ -14,14 +15,14 @@ module Tartrazine
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return lexer_by_filename(filename) if filename
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return lexer_by_mimetype(mimetype) if mimetype
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Lexer.from_xml(LexerFiles.get("/#{LEXERS_BY_NAME["plaintext"]}.xml").gets_to_end)
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RegexLexer.from_xml(LexerFiles.get("/#{LEXERS_BY_NAME["plaintext"]}.xml").gets_to_end)
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end
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private def self.lexer_by_mimetype(mimetype : String) : BaseLexer
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lexer_file_name = LEXERS_BY_MIMETYPE.fetch(mimetype, nil)
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raise Exception.new("Unknown mimetype: #{mimetype}") if lexer_file_name.nil?
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Lexer.from_xml(LexerFiles.get("/#{lexer_file_name}.xml").gets_to_end)
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RegexLexer.from_xml(LexerFiles.get("/#{lexer_file_name}.xml").gets_to_end)
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end
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private def self.lexer_by_name(name : String) : BaseLexer
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@@ -29,7 +30,7 @@ module Tartrazine
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return create_delegating_lexer(name) if lexer_file_name.nil? && name.includes? "+"
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raise Exception.new("Unknown lexer: #{name}") if lexer_file_name.nil?
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Lexer.from_xml(LexerFiles.get("/#{lexer_file_name}.xml").gets_to_end)
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RegexLexer.from_xml(LexerFiles.get("/#{lexer_file_name}.xml").gets_to_end)
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end
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private def self.lexer_by_filename(filename : String) : BaseLexer
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@@ -52,7 +53,7 @@ module Tartrazine
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end
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end
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Lexer.from_xml(LexerFiles.get("/#{lexer_file_name}.xml").gets_to_end)
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RegexLexer.from_xml(LexerFiles.get("/#{lexer_file_name}.xml").gets_to_end)
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end
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private def self.lexer_by_content(fname : String) : String?
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@@ -152,7 +153,9 @@ module Tartrazine
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end
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end
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abstract class BaseLexer
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alias BaseLexer = Lexer
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abstract class Lexer
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property config = {
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name: "",
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priority: 0.0,
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@@ -174,7 +177,7 @@ module Tartrazine
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# For explanations on what actions and states do
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# the Pygments documentation is a good place to start.
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# https://pygments.org/docs/lexerdevelopment/
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class Lexer < BaseLexer
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class RegexLexer < BaseLexer
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# Collapse consecutive tokens of the same type for easier comparison
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# and smaller output
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def self.collapse_tokens(tokens : Array(Tartrazine::Token)) : Array(Tartrazine::Token)
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@@ -198,7 +201,7 @@ module Tartrazine
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end
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def self.from_xml(xml : String) : Lexer
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l = Lexer.new
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l = RegexLexer.new
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lexer = XML.parse(xml).first_element_child
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if lexer
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config = lexer.children.find { |node|
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@@ -263,7 +266,7 @@ module Tartrazine
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#
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# This is useful for things like template languages, where
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# you have Jinja + HTML or Jinja + CSS and so on.
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class DelegatingLexer < BaseLexer
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class DelegatingLexer < Lexer
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property language_lexer : BaseLexer
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property root_lexer : BaseLexer
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