Package com.tnsai.invariants.rules

Class RuleParser

java.lang.Object

com.tnsai.invariants.rules.RuleParser

public class RuleParser
extends Object

Parses conditional rule strings into ConditionalRule objects.

Supports patterns like:

• "DEAD if neighbors < 2"
• "DEAD if neighbors < 2 (underpopulation)"
• "ALIVE if neighbors == 3 (reproduction)"
• "unchanged if neighbors == 2 or 3 (stasis)"
• "state = DEAD when currentState == ALIVE && neighbors < 2"

Supported Rule Formats

 Format 1: EFFECT if CONDITION
 Format 2: EFFECT if CONDITION (DESCRIPTION)
 Format 3: FIELD = VALUE when CONDITION
 

Author:

TnsAI Team

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RuleParser.RuleParseException	Exception thrown when rule parsing fails.

Constructor Summary

Constructors

Constructor	Description
RuleParser()

Method Summary

Modifier and Type	Method	Description
boolean	isConditionalRule(String text)	Checks if a string looks like a conditional rule.
ConditionalRule	parse(String ruleString)	Parses a single rule string into a ConditionalRule.
List<ConditionalRule>	parseAll(String[] ruleStrings)	Parses multiple rules from an array of strings.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RuleParser

public RuleParser()

Method Details

parse

public ConditionalRule parse(String ruleString)

Parses a single rule string into a ConditionalRule.

Parameters:

ruleString - the rule string to parse

Returns:

parsed ConditionalRule

Throws:

RuleParser.RuleParseException - if parsing fails

parseAll

public List<ConditionalRule> parseAll(String[] ruleStrings)

Parses multiple rules from an array of strings.

Parameters:

ruleStrings - array of rule strings

Returns:

list of parsed ConditionalRules

isConditionalRule

public boolean isConditionalRule(String text)

Checks if a string looks like a conditional rule.

Parameters:

text - the text to check

Returns:

true if it appears to be a conditional rule