The parser component is the heart of P-Lingua's language processing pipeline, responsible for transforming P-Lingua source code into executable P-system models.
graph TD
subgraph "Lexical Analysis Layer"
A[Flex Scanner] --> B[Token Recognition]
B --> C[Symbol Classification]
C --> D[Token Stream]
end
subgraph "Syntactic Analysis Layer"
D --> E[Bison Parser]
E --> F[Grammar Rules]
F --> G[Parse Tree]
G --> H[AST Construction]
end
subgraph "Semantic Analysis Layer"
H --> I[Symbol Table]
I --> J[Type Checking]
J --> K[Pattern Validation]
K --> L[Model Generation]
end
subgraph "Error Recovery"
M[Error Detection]
N[Error Recovery]
O[Error Reporting]
end
E --> M
J --> M
M --> N
N --> O
style A fill:#e3f2fd
style L fill:#e8f5e8
style M fill:#ffebee
stateDiagram-v2
[*] --> Initialization
Initialization --> FileLoading: Start parsing
FileLoading --> Lexing: File loaded
Lexing --> Parsing: Tokens ready
Parsing --> SemanticAnalysis: Parse tree built
SemanticAnalysis --> ModelCreation: Semantics validated
ModelCreation --> [*]: Model complete
Lexing --> ErrorRecovery: Lexical error
Parsing --> ErrorRecovery: Syntax error
SemanticAnalysis --> ErrorRecovery: Semantic error
ErrorRecovery --> FileLoading: Recoverable error
ErrorRecovery --> [*]: Fatal error
note right of SemanticAnalysis
Performs:
- Symbol resolution
- Type checking
- Pattern matching
- Rule validation
end note
flowchart LR
A[Rule Definition] --> B[Pattern Extractor]
B --> C[Pattern Database]
C --> D[Pattern Matcher]
D --> E[Match Validation]
E --> F[Rule Integration]
subgraph "Pattern Types"
G[Object Patterns]
H[Membrane Patterns]
I[Rule Patterns]
J[Feature Patterns]
end
B --> G
B --> H
B --> I
B --> J
G --> D
H --> D
I --> D
J --> D
style A fill:#e1f5fe
style F fill:#e8f5e8
The simulator executes P-system models by applying evolution rules and managing membrane configurations.
graph TB
subgraph "Rule Management"
A[Rule Sets]
B[Rule Indexing]
C[Priority Management]
D[Rule Selection]
end
subgraph "Configuration Management"
E[Current Configuration]
F[Membrane Hierarchy]
G[Object Tracking]
H[State Updates]
end
subgraph "Execution Engine"
I[Step Controller]
J[Rule Applicator]
K[Conflict Resolver]
L[Termination Detector]
end
subgraph "Optimization Layer"
M[Rule Caching]
N[Memory Pooling]
O[Parallel Execution]
P[Performance Monitoring]
end
A --> D
B --> D
C --> D
D --> J
E --> I
F --> I
G --> I
I --> H
J --> K
K --> L
L --> I
D --> M
I --> N
J --> O
L --> P
style I fill:#f1f8e9
style M fill:#fff3e0
sequenceDiagram
participant Engine as Simulation Engine
participant Selector as Rule Selector
participant Membrane as Membrane State
participant Rules as Rule Set
participant Random as Random Generator
Engine->>Selector: Start rule selection
Selector->>Membrane: Get current state
Membrane-->>Selector: Membrane configuration
loop For each membrane
Selector->>Rules: Get applicable rules
Rules-->>Selector: Rule candidates
Selector->>Selector: Calculate max applications
Selector->>Random: Apply randomization
Random-->>Selector: Final applications
Selector->>Membrane: Update virtual state
end
Selector-->>Engine: Selected rules
Engine->>Engine: Execute selected rules
graph LR
subgraph "Object Pool"
A[Free Objects]
B[Active Objects]
C[Recycled Objects]
end
subgraph "Membrane Pool"
D[Available Membranes]
E[Active Membranes]
F[Dissolved Membranes]
end
subgraph "Configuration Pool"
G[Configuration Cache]
H[State Snapshots]
I[Rollback Points]
end
A --> B
B --> C
C --> A
D --> E
E --> F
F --> D
G --> H
H --> I
I --> G
B --> E
E --> H
style A fill:#e0f2f1
style D fill:#f3e5f5
style G fill:#e8eaf6
The code generator transforms P-system models into efficient C++ implementations.
flowchart TD
A[P-System Model] --> B[Analysis Phase]
B --> C[Template Selection]
B --> D[Symbol Mapping]
B --> E[Optimization Analysis]
C --> F[Header Template]
C --> G[Implementation Template]
D --> H[Name Generation]
D --> I[Type Mapping]
E --> J[Loop Unrolling]
E --> K[Inline Expansion]
F --> L[Header Code]
G --> M[Implementation Code]
H --> M
I --> M
J --> M
K --> M
L --> N[Final C++ Code]
M --> N
style A fill:#e1f5fe
style N fill:#e8f5e8
graph TB
subgraph "Template Categories"
A[Rule Templates]
B[Membrane Templates]
C[Object Templates]
D[Utility Templates]
end
subgraph "Generation Strategies"
E[Direct Translation]
F[Loop Generation]
G[Table-driven]
H[State Machine]
end
subgraph "Optimization Passes"
I[Dead Code Elimination]
J[Constant Folding]
K[Loop Optimization]
L[Inlining]
end
A --> E
A --> F
B --> G
C --> H
E --> I
F --> J
G --> K
H --> L
style A fill:#e3f2fd
style E fill:#f1f8e9
style I fill:#fff3e0
The serialization system provides persistent storage and exchange of P-system models and configurations.
classDiagram
class Serializable {
<<interface>>
+save(archive)
+load(archive)
}
class Psystem {
+model: String
+structure: Membrane
+rules: set~Rule~
+serialize(archive)
}
class Configuration {
+time: unsigned long
+environment: Multiset
+membranes: vector~CMembrane~
+serialize(archive)
}
class Value {
+type: Type
+value: union
+save(archive)
+load(archive)
}
class Membrane {
+charge: char
+label: Label
+data: vector~Membrane~
+serialize(archive)
}
Serializable <|.. Psystem
Serializable <|.. Configuration
Serializable <|.. Value
Serializable <|.. Membrane
graph LR
subgraph "File Header"
A[Magic Number]
B[Version Info]
C[Metadata]
end
subgraph "Model Section"
D[P-System Model]
E[Rules Data]
F[Structure Data]
end
subgraph "Configuration Section"
G[Initial Config]
H[Membrane States]
I[Object Counts]
end
subgraph "Footer"
J[Checksums]
K[Index Table]
end
A --> B
B --> C
C --> D
D --> E
E --> F
F --> G
G --> H
H --> I
I --> J
J --> K
style A fill:#e3f2fd
style D fill:#f1f8e9
style G fill:#fff3e0
style J fill:#ffebee
sequenceDiagram
participant Parser
participant ModelBuilder
participant Simulator
participant Generator
participant FileManager
Parser->>ModelBuilder: AST data
ModelBuilder->>Parser: Validation results
Parser->>FileManager: Save model
FileManager->>Simulator: Load model
Simulator->>Simulator: Execute simulation
Simulator->>FileManager: Save configuration
FileManager->>Generator: Load model
Generator->>Generator: Generate code
Generator->>FileManager: Save generated code
graph TD
subgraph "Event Sources"
A[Parser Events]
B[Simulation Events]
C[Error Events]
D[I/O Events]
end
subgraph "Event Bus"
E[Event Dispatcher]
F[Event Queue]
G[Event Router]
end
subgraph "Event Handlers"
H[Log Handler]
I[UI Handler]
J[Monitoring Handler]
K[Debug Handler]
end
A --> E
B --> E
C --> E
D --> E
E --> F
F --> G
G --> H
G --> I
G --> J
G --> K
style E fill:#f1f8e9
style H fill:#e3f2fd
graph TB
subgraph "Main Thread"
A[Command Processing]
B[UI Management]
C[Result Collection]
end
subgraph "Parser Thread Pool"
D[File Parser 1]
E[File Parser 2]
F[File Parser N]
end
subgraph "Simulation Thread Pool"
G[Simulator 1]
H[Simulator 2]
I[Simulator N]
end
subgraph "I/O Thread Pool"
J[File Reader]
K[File Writer]
L[Network Handler]
end
A --> D
A --> E
A --> F
A --> G
A --> H
A --> I
A --> J
A --> K
A --> L
D --> C
E --> C
F --> C
G --> C
H --> C
I --> C
style A fill:#f1f8e9
style C fill:#e8f5e8
graph LR
subgraph "Synchronization Primitives"
A[Mutexes]
B[Condition Variables]
C[Atomic Operations]
D[Read-Write Locks]
end
subgraph "High-Level Constructs"
E[Thread-Safe Containers]
F[Producer-Consumer Queues]
G[Barrier Synchronization]
H[Future/Promise]
end
subgraph "Lock-Free Structures"
I[Lock-Free Stack]
J[Lock-Free Queue]
K[Atomic Counters]
L[Memory Pools]
end
A --> E
B --> F
C --> I
D --> G
E --> H
F --> H
G --> H
I --> J
J --> K
K --> L
style A fill:#e3f2fd
style E fill:#f1f8e9
style I fill:#fff3e0
This deep dive into P-Lingua's component architecture reveals the sophisticated design patterns and engineering decisions that make the framework both powerful and maintainable. Each component is designed with clear responsibilities and well-defined interfaces, enabling extensibility and optimization.