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Parse rules correctly

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This commit is contained in:
Roberto Alsina 2024-08-02 20:01:53 -03:00
parent a460d553c4
commit ea35f38db1
1 changed files with 12 additions and 8 deletions
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20
src/tartrazine.cr
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@ -25,7 +25,7 @@ module Tartrazine
# ...
class IncludeState < Rule
property include : String = ""
property state : String = ""
end
class Lexer
@ -57,23 +57,27 @@ module Tartrazine
rules = lexer.children.find { |n| n.name == "rules" }
if rules
# Rules contains states 🤷
rules.children.select { |n| n.name == "state" }.each do |node|
rules.children.select { |n| n.name == "state" }.each do |state_node|
state = State.new
state.name = node["name"]
state.name = state_node["name"]
if l.states.has_key?(state.name)
puts "Duplicate state: #{state.name}"
else
l.states[state.name] = state
end
# And states contain rules 🤷
node.children.select { |n| n.name == "rule" }.each do |rule_node|
state_node.children.select { |n| n.name == "rule" }.each do |rule_node|
if rule_node["pattern"]?
# We have patter rules
rule = Rule.new
state.rules << rule
rule.pattern = /#{rule_node["pattern"]}/
else
puts "Unknown rule type: #{rule_node}"
# And rules that include a state
rule = IncludeState.new
include_node = rule_node.children.find { |n| n.name == "include" }
rule.state = include_node["state"] if include_node
end
state.rules << rule
end
end
end
@ -83,8 +87,8 @@ module Tartrazine
end
end
l = Tartrazine::Lexer.from_xml(File.read("lexers/solidity.xml"))
# p! l.config, l.states
l = Tartrazine::Lexer.from_xml(File.read("lexers/bash_session.xml"))
pp! l.states["root"].rules
# Convenience macros to parse XML
macro xml_to_s(node, name)