feat: use the native crystal highlighter

The chroma highlighter for crystal is not great,
because the pygments one special cases things like
heredocs and that got lost in translation.

Since the crystal compiler comes with a highlighter
why not use it?
This commit is contained in:
Roberto Alsina 2024-09-09 12:22:11 -03:00
parent c011bd8347
commit 84980459cf
24 changed files with 83 additions and 1438 deletions

View File

@ -1,762 +0,0 @@
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</lexer>

View File

@ -1,16 +0,0 @@
---input---
@[FOO::Bar::Baz(opt: "xx")]
---tokens---
'@[' Operator
'FOO::Bar::Baz' Name.Decorator
'(' Punctuation
'opt' Literal.String.Symbol
':' Punctuation
' ' Text.Whitespace
'"' Literal.String.Double
'xx' Literal.String.Double
'"' Literal.String.Double
')' Punctuation
']' Operator
'\n' Text.Whitespace

View File

@ -1,11 +0,0 @@
---input---
[5][5]?
---tokens---
'[' Operator
'5' Literal.Number.Integer
']' Operator
'[' Operator
'5' Literal.Number.Integer
']?' Operator
'\n' Text.Whitespace

View File

@ -1,25 +0,0 @@
---input---
'a'
'я'
'\u{1234}'
'
'
'abc'
---tokens---
"'a'" Literal.String.Char
'\n' Text.Whitespace
"'я'" Literal.String.Char
'\n' Text.Whitespace
"'\\u{1234}'" Literal.String.Char
'\n' Text.Whitespace
"'\n'" Literal.String.Char
'\n' Text.Whitespace
"'" Error
'abc' Name
"'" Error
'\n' Text.Whitespace

View File

@ -1,14 +0,0 @@
---input---
HTTP
HTTP::Server.new
---tokens---
'HTTP' Name.Constant
'\n' Text.Whitespace
'HTTP' Name
'::' Operator
'Server' Name
'.' Operator
'new' Name
'\n' Text.Whitespace

View File

@ -1,27 +0,0 @@
---input---
%()
%[]
%{}
%<>
%||
---tokens---
'%(' Literal.String.Other
')' Literal.String.Other
'\n' Text.Whitespace
'%[' Literal.String.Other
']' Literal.String.Other
'\n' Text.Whitespace
'%{' Literal.String.Other
'}' Literal.String.Other
'\n' Text.Whitespace
'%<' Literal.String.Other
'>' Literal.String.Other
'\n' Text.Whitespace
'%|' Literal.String.Other
'|' Literal.String.Other
'\n' Text.Whitespace

View File

@ -1,19 +0,0 @@
---input---
str.gsub(%r{\\\\}, "/")
---tokens---
'str' Name
'.' Operator
'gsub' Name
'(' Punctuation
'%r{' Literal.String.Regex
'\\\\' Literal.String.Regex
'\\\\' Literal.String.Regex
'}' Literal.String.Regex
',' Punctuation
' ' Text.Whitespace
'"' Literal.String.Double
'/' Literal.String.Double
'"' Literal.String.Double
')' Punctuation
'\n' Text.Whitespace

View File

@ -1,9 +0,0 @@
---input---
"\#{a + b}"
---tokens---
'"' Literal.String.Double
'\\#' Literal.String.Escape
'{a + b}' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace

View File

@ -1,56 +0,0 @@
---input---
"A#{ (3..5).group_by { |x| x/2}.map do |k,v| "#{k}" end.join }" + "Z"
---tokens---
'"' Literal.String.Double
'A' Literal.String.Double
'#{' Literal.String.Interpol
' ' Text.Whitespace
'(' Punctuation
'3' Literal.Number.Integer
'..' Operator
'5' Literal.Number.Integer
')' Punctuation
'.' Operator
'group_by' Name
' ' Text.Whitespace
'{' Literal.String.Interpol
' ' Text.Whitespace
'|' Operator
'x' Name
'|' Operator
' ' Text.Whitespace
'x' Name
'/' Operator
'2' Literal.Number.Integer
'}' Literal.String.Interpol
'.' Operator
'map' Name
' ' Text.Whitespace
'do' Keyword
' ' Text.Whitespace
'|' Operator
'k' Name
',' Punctuation
'v' Name
'|' Operator
' ' Text.Whitespace
'"' Literal.String.Double
'#{' Literal.String.Interpol
'k' Name
'}' Literal.String.Interpol
'"' Literal.String.Double
' ' Text.Whitespace
'end' Keyword
'.' Operator
'join' Name
' ' Text.Whitespace
'}' Literal.String.Interpol
'"' Literal.String.Double
' ' Text.Whitespace
'+' Operator
' ' Text.Whitespace
'"' Literal.String.Double
'Z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace

View File

@ -1,58 +0,0 @@
---input---
@[Link("some")]
lib LibSome
@[CallConvention("X86_StdCall")]
fun foo="some.foo"(thing : Void*) : LibC::Int
end
---tokens---
'@[' Operator
'Link' Name.Decorator
'(' Punctuation
'"' Literal.String.Double
'some' Literal.String.Double
'"' Literal.String.Double
')' Punctuation
']' Operator
'\n' Text.Whitespace
'lib' Keyword
' ' Text.Whitespace
'LibSome' Name.Namespace
'\n' Text.Whitespace
'@[' Operator
'CallConvention' Name.Decorator
'(' Punctuation
'"' Literal.String.Double
'X86_StdCall' Literal.String.Double
'"' Literal.String.Double
')' Punctuation
']' Operator
'\n' Text.Whitespace
'fun' Keyword
' ' Text.Whitespace
'foo' Name.Function
'=' Operator
'"' Literal.String.Double
'some.foo' Literal.String.Double
'"' Literal.String.Double
'(' Punctuation
'thing' Name
' ' Text.Whitespace
':' Punctuation
' ' Text.Whitespace
'Void' Name
'*' Operator
')' Punctuation
' ' Text.Whitespace
':' Punctuation
' ' Text.Whitespace
'LibC' Name
'::' Operator
'Int' Name
'\n' Text.Whitespace
'end' Keyword
'\n' Text.Whitespace

View File

@ -1,76 +0,0 @@
---input---
def<=>(other : self) : Int
{%for field in %w(first_name middle_name last_name)%}
cmp={{field.id}}<=>other.{{field.id}}
return cmp if cmp!=0
{%end%}
0
end
---tokens---
'def' Keyword
'<=>' Name.Function
'(' Punctuation
'other' Name
' ' Text.Whitespace
':' Punctuation
' ' Text.Whitespace
'self' Keyword
')' Punctuation
' ' Text.Whitespace
':' Punctuation
' ' Text.Whitespace
'Int' Name
'\n' Text.Whitespace
'{%' Literal.String.Interpol
'for' Keyword
' ' Text.Whitespace
'field' Name
' ' Text.Whitespace
'in' Keyword
' ' Text.Whitespace
'%w(' Literal.String.Other
'first_name middle_name last_name' Literal.String.Other
')' Literal.String.Other
'%}' Literal.String.Interpol
'\n' Text.Whitespace
'cmp' Name
'=' Operator
'{{' Literal.String.Interpol
'field' Name
'.' Operator
'id' Name
'}}' Literal.String.Interpol
'<=>' Operator
'other' Name
'.' Operator
'{{' Literal.String.Interpol
'field' Name
'.' Operator
'id' Name
'}}' Literal.String.Interpol
'\n' Text.Whitespace
'return' Keyword
' ' Text.Whitespace
'cmp' Name
' ' Text.Whitespace
'if' Keyword
' ' Text.Whitespace
'cmp' Name
'!=' Operator
'0' Literal.Number.Integer
'\n' Text.Whitespace
'{%' Literal.String.Interpol
'end' Keyword
'%}' Literal.String.Interpol
'\n' Text.Whitespace
'0' Literal.Number.Integer
'\n' Text.Whitespace
'end' Keyword
'\n' Text.Whitespace

View File

@ -1,84 +0,0 @@
---input---
# Integers
0
1
1_000_000
1u8
11231231231121312i64
# Floats
0.0
1.0_f32
1_f32
0f64
1e+4
1e111
1_234.567_890
# Error
01
0b2
0x129g2
0o12358
---tokens---
'# Integers' Comment.Single
'\n' Text.Whitespace
'0' Literal.Number.Integer
'\n' Text.Whitespace
'1' Literal.Number.Integer
'\n' Text.Whitespace
'1_000_000' Literal.Number.Integer
'\n' Text.Whitespace
'1u8' Literal.Number.Integer
'\n' Text.Whitespace
'11231231231121312i64' Literal.Number.Integer
'\n\n' Text.Whitespace
'# Floats' Comment.Single
'\n' Text.Whitespace
'0.0' Literal.Number.Float
'\n' Text.Whitespace
'1.0_f32' Literal.Number.Float
'\n' Text.Whitespace
'1_f32' Literal.Number.Float
'\n' Text.Whitespace
'0f64' Literal.Number.Float
'\n' Text.Whitespace
'1e+4' Literal.Number.Float
'\n' Text.Whitespace
'1e111' Literal.Number.Float
'\n' Text.Whitespace
'1_234.567_890' Literal.Number.Float
'\n\n' Text.Whitespace
'# Error' Comment.Single
'\n' Text.Whitespace
'0' Error
'1' Literal.Number.Integer
'\n' Text.Whitespace
'0' Error
'b2' Name
'\n' Text.Whitespace
'0' Error
'x129g2' Name
'\n' Text.Whitespace
'0' Error
'o12358' Name
'\n' Text.Whitespace

View File

@ -1,18 +0,0 @@
---input---
([] of Int32).[]?(5)
---tokens---
'(' Punctuation
'[' Operator
']' Operator
' ' Text.Whitespace
'of' Keyword
' ' Text.Whitespace
'Int32' Name
')' Punctuation
'.' Operator
'[]?' Name.Operator
'(' Punctuation
'5' Literal.Number.Integer
')' Punctuation
'\n' Text.Whitespace

View File

@ -1,41 +0,0 @@
---input---
%(hello ("world"))
%[hello ["world"]]
%{hello "world"}
%<hello <"world">>
%|hello "world"|
---tokens---
'%(' Literal.String.Other
'hello ' Literal.String.Other
'(' Literal.String.Other
'"world"' Literal.String.Other
')' Literal.String.Other
')' Literal.String.Other
'\n' Text.Whitespace
'%[' Literal.String.Other
'hello ' Literal.String.Other
'[' Literal.String.Other
'"world"' Literal.String.Other
']' Literal.String.Other
']' Literal.String.Other
'\n' Text.Whitespace
'%{' Literal.String.Other
'hello "world"' Literal.String.Other
'}' Literal.String.Other
'\n' Text.Whitespace
'%<' Literal.String.Other
'hello ' Literal.String.Other
'<' Literal.String.Other
'"world"' Literal.String.Other
'>' Literal.String.Other
'>' Literal.String.Other
'\n' Text.Whitespace
'%|' Literal.String.Other
'hello "world"' Literal.String.Other
'|' Literal.String.Other
'\n' Text.Whitespace

View File

@ -1,31 +0,0 @@
---input---
%Q(hello \n #{name})
%q(hello \n #{name})
%w(foo\nbar baz)
---tokens---
'%Q(' Literal.String.Other
'hello ' Literal.String.Other
'\\n' Literal.String.Escape
' ' Literal.String.Other
'#{' Literal.String.Interpol
'name' Name
'}' Literal.String.Interpol
')' Literal.String.Other
'\n' Text.Whitespace
'%q(' Literal.String.Other
'hello ' Literal.String.Other
'\\' Literal.String.Other
'n ' Literal.String.Other
'#' Literal.String.Other
'{name}' Literal.String.Other
')' Literal.String.Other
'\n' Text.Whitespace
'%w(' Literal.String.Other
'foo' Literal.String.Other
'\\' Literal.String.Other
'nbar baz' Literal.String.Other
')' Literal.String.Other
'\n' Text.Whitespace

View File

@ -1,20 +0,0 @@
---input---
record Cls do
def_equals s
end
---tokens---
'record' Name.Builtin.Pseudo
' ' Text.Whitespace
'Cls' Name
' ' Text.Whitespace
'do' Keyword
'\n' Text.Whitespace
'def_equals' Name.Builtin.Pseudo
' ' Text.Whitespace
's' Name
'\n' Text.Whitespace
'end' Keyword
'\n' Text.Whitespace

View File

@ -1,50 +0,0 @@
---input---
def f(x : T, line = __LINE__) forall T
if x.is_a?(String)
pp! x
end
end
---tokens---
'def' Keyword
' ' Text.Whitespace
'f' Name.Function
'(' Punctuation
'x' Name
' ' Text.Whitespace
':' Punctuation
' ' Text.Whitespace
'T' Name
',' Punctuation
' ' Text.Whitespace
'line' Name
' ' Text.Whitespace
'=' Operator
' ' Text.Whitespace
'__LINE__' Keyword.Pseudo
')' Punctuation
' ' Text.Whitespace
'forall' Keyword.Pseudo
' ' Text.Whitespace
'T' Name
'\n' Text.Whitespace
'if' Keyword
' ' Text.Whitespace
'x' Name
'.is_a?' Keyword.Pseudo
'(' Punctuation
'String' Name
')' Punctuation
'\n' Text.Whitespace
'pp!' Name.Builtin.Pseudo
' ' Text.Whitespace
'x' Name
'\n' Text.Whitespace
'end' Keyword
'\n' Text.Whitespace
'end' Keyword
'\n' Text.Whitespace

View File

@ -1,8 +0,0 @@
---input---
1...3
---tokens---
'1' Literal.Number.Integer
'...' Operator
'3' Literal.Number.Integer
'\n' Text.Whitespace

View File

@ -1,10 +0,0 @@
---input---
1 .. 3
---tokens---
'1' Literal.Number.Integer
' ' Text.Whitespace
'..' Operator
' ' Text.Whitespace
'3' Literal.Number.Integer
'\n' Text.Whitespace

View File

@ -1,58 +0,0 @@
---input---
"a\nz"
"a\az"
"a\xffz"
"a\u1234z"
"a\000z"
"a\u{0}z"
"a\u{10AfF9}z"
---tokens---
'"' Literal.String.Double
'a' Literal.String.Double
'\\n' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace
'"' Literal.String.Double
'a' Literal.String.Double
'\\a' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace
'"' Literal.String.Double
'a' Literal.String.Double
'\\xff' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace
'"' Literal.String.Double
'a' Literal.String.Double
'\\u1234' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace
'"' Literal.String.Double
'a' Literal.String.Double
'\\000' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace
'"' Literal.String.Double
'a' Literal.String.Double
'\\u{0}' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace
'"' Literal.String.Double
'a' Literal.String.Double
'\\u{10AfF9}' Literal.String.Escape
'z' Literal.String.Double
'"' Literal.String.Double
'\n' Text.Whitespace

View File

@ -1,20 +0,0 @@
---input---
:sym_bol
:あ
:question?
:"symbol"
---tokens---
':sym_bol' Literal.String.Symbol
'\n' Text.Whitespace
':あ' Literal.String.Symbol
'\n' Text.Whitespace
':question?' Literal.String.Symbol
'\n' Text.Whitespace
':"' Literal.String.Symbol
'symbol' Literal.String.Symbol
'"' Literal.String.Symbol
'\n' Text.Whitespace

View File

@ -1,6 +1,7 @@
require "./constants/lexers" require "./constants/lexers"
require "./heuristics" require "./heuristics"
require "baked_file_system" require "baked_file_system"
require "crystal/syntax_highlighter"
module Tartrazine module Tartrazine
class LexerFiles class LexerFiles
@ -26,6 +27,7 @@ module Tartrazine
end end
private def self.lexer_by_name(name : String) : BaseLexer private def self.lexer_by_name(name : String) : BaseLexer
return CrystalLexer.new if name == "crystal"
lexer_file_name = LEXERS_BY_NAME.fetch(name.downcase, nil) lexer_file_name = LEXERS_BY_NAME.fetch(name.downcase, nil)
return create_delegating_lexer(name) if lexer_file_name.nil? && name.includes? "+" return create_delegating_lexer(name) if lexer_file_name.nil? && name.includes? "+"
raise Exception.new("Unknown lexer: #{name}") if lexer_file_name.nil? raise Exception.new("Unknown lexer: #{name}") if lexer_file_name.nil?
@ -34,6 +36,10 @@ module Tartrazine
end end
private def self.lexer_by_filename(filename : String) : BaseLexer private def self.lexer_by_filename(filename : String) : BaseLexer
if filename.ends_with?(".cr")
return CrystalLexer.new
end
candidates = Set(String).new candidates = Set(String).new
LEXERS_BY_FILENAME.each do |k, v| LEXERS_BY_FILENAME.each do |k, v|
candidates += v.to_set if File.match?(k, File.basename(filename)) candidates += v.to_set if File.match?(k, File.basename(filename))
@ -327,4 +333,81 @@ module Tartrazine
new_state new_state
end end
end end
class CustomCrystalHighlighter < Crystal::SyntaxHighlighter
@tokens = [] of Token
def render_delimiter(&block)
@tokens << {type: "LiteralString", value: block.call.to_s}
end
def render_interpolation(&block)
@tokens << {type: "LiteralStringInterpol", value: "\#{"}
@tokens << {type: "Text", value: block.call.to_s}
@tokens << {type: "LiteralStringInterpol", value: "}"}
end
def render_string_array(&block)
@tokens << {type: "LiteralString", value: block.call.to_s}
end
# ameba:disable Metrics/CyclomaticComplexity
def render(type : TokenType, value : String)
case type
when .comment?
@tokens << {type: "Comment", value: value}
when .number?
@tokens << {type: "LiteralNumber", value: value}
when .char?
@tokens << {type: "LiteralStringChar", value: value}
when .symbol?
@tokens << {type: "LiteralStringSymbol", value: value}
when .const?
@tokens << {type: "NameConstant", value: value}
when .string?
@tokens << {type: "LiteralString", value: value}
when .ident?
@tokens << {type: "NameVariable", value: value}
when .keyword?, .self?
@tokens << {type: "NameKeyword", value: value}
when .primitive_literal?
@tokens << {type: "Literal", value: value}
when .operator?
@tokens << {type: "Operator", value: value}
when Crystal::SyntaxHighlighter::TokenType::DELIMITED_TOKEN, Crystal::SyntaxHighlighter::TokenType::DELIMITER_START, Crystal::SyntaxHighlighter::TokenType::DELIMITER_END
@tokens << {type: "LiteralString", value: value}
else
@tokens << {type: "Text", value: value}
end
end
end
class CrystalTokenizer < Tartrazine::BaseTokenizer
include Iterator(Token)
@hl = CustomCrystalHighlighter.new
@lexer : BaseLexer
@iter : Iterator(Token)
# delegate next, to: @iter
def initialize(@lexer : BaseLexer, text : String, secondary = false)
# Respect the `ensure_nl` config option
if text.size > 0 && text[-1] != '\n' && @lexer.config[:ensure_nl] && !secondary
text += "\n"
end
# Just do the tokenizing
@hl.highlight(text)
@iter = @hl.@tokens.each
end
def next : Iterator::Stop | Token
@iter.next
end
end
class CrystalLexer < BaseLexer
def tokenizer(text : String, secondary = false) : BaseTokenizer
CrystalTokenizer.new(self, text, secondary)
end
end
end end

View File

@ -17,7 +17,6 @@ module Tartrazine
abstract struct BaseRule abstract struct BaseRule
abstract def match(text : Bytes, pos : Int32, tokenizer : Tokenizer) : Tuple(Bool, Int32, Array(Token)) abstract def match(text : Bytes, pos : Int32, tokenizer : Tokenizer) : Tuple(Bool, Int32, Array(Token))
abstract def initialize(node : XML::Node)
@actions : Array(Action) = [] of Action @actions : Array(Action) = [] of Action
@ -40,9 +39,6 @@ module Tartrazine
return true, pos + match[0].size, @actions.flat_map(&.emit(match, tokenizer)) return true, pos + match[0].size, @actions.flat_map(&.emit(match, tokenizer))
end end
def initialize(node : XML::Node)
end
def initialize(node : XML::Node, multiline, dotall, ignorecase) def initialize(node : XML::Node, multiline, dotall, ignorecase)
pattern = node["pattern"] pattern = node["pattern"]
pattern = "(?m)" + pattern if multiline pattern = "(?m)" + pattern if multiline

View File

@ -84,27 +84,6 @@ module Tartrazine
property styles = {} of String => Style property styles = {} of String => Style
# Get the style for a token.
def style(token)
styles[token] = Style.new unless styles.has_key?(token)
s = styles[token]
# We already got the data from the style hierarchy
return s if s.complete?
# Form the hierarchy of parent styles
parents = style_parents(token)
s = parents.map do |parent|
styles[parent]
end.reduce(s) do |acc, style|
acc + style
end
s.complete = true
styles[token] = s
s
end
def style_parents(token) def style_parents(token)
parents = ["Background"] parents = ["Background"]
parts = token.underscore.split("_").map(&.capitalize) parts = token.underscore.split("_").map(&.capitalize)