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Improved config parsing

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This commit is contained in:
Roberto Alsina 2024-08-02 17:23:40 -03:00
parent 7d7a4294ed
commit 328197add5
1 changed files with 29 additions and 8 deletions
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37
src/tartrazine.cr
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@ -3,6 +3,11 @@ require "xml"
module Tartrazine module Tartrazine
VERSION = "0.1.0" VERSION = "0.1.0"
class State
property name : String = ""
property rules = [] of String
end
class Lexer class Lexer
property config = { property config = {
name: "", name: "",
@ -12,6 +17,8 @@ module Tartrazine
priority: 0, priority: 0,
} }
property states = [] of State
def self.from_xml(xml : String) : Lexer def self.from_xml(xml : String) : Lexer
l = Lexer.new l = Lexer.new
lexer = XML.parse(xml).first_element_child lexer = XML.parse(xml).first_element_child
@ -19,25 +26,39 @@ module Tartrazine
config = lexer.children.find { |n| n.name == "config" } config = lexer.children.find { |n| n.name == "config" }
if config if config
l.config = { l.config = {
name: xml_to_s(config, name), name: xml_to_s(config, name) || "",
aliases: xml_to_a(config, _alias), aliases: xml_to_a(config, _alias) || [] of String,
filenames: xml_to_a(config, filename), filenames: xml_to_a(config, filename) || [] of String,
mime_types: xml_to_a(config, mime_type), mime_types: xml_to_a(config, mime_type) || [] of String,
priority: xml_to_s(config, priority).to_i, priority: xml_to_i(config, priority) || 0,
} }
end end
rules = lexer.children.find { |n| n.name == "rules" }
if rules
# Rules contains states 🤷
rules.children.select { |n| n.name == "state" }.each do |node|
state = State.new
state.name = node["name"]
l.states << state
end
end
end end
l l
end end
end end
end end
l = Tartrazine::Lexer.from_xml(File.read("lexers/plaintext.xml")) l = Tartrazine::Lexer.from_xml(File.read("lexers/bash.xml"))
p! l.config p! l.config, l.states
# Convenience macros to parse XML # Convenience macros to parse XML
macro xml_to_s(node, name) macro xml_to_s(node, name)
{{node}}.children.find{|n| n.name == "{{name}}".lstrip("_")}.as(XML::Node).content.to_s {{node}}.children.find{|n| n.name == "{{name}}".lstrip("_")}.try &.content.to_s
end
macro xml_to_i(node, name)
({{node}}.children.find{|n| n.name == "{{name}}".lstrip("_")}.try &.content.to_s.to_i)
end end
macro xml_to_a(node, name) macro xml_to_a(node, name)