Computer Science – 5.2 Language Translators | e-Consult
5.2 Language Translators (1 questions)
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The following table illustrates the key stages involved in interpreting a high-level language program:
| Stage | Description |
| 1. Source Code Input | The interpreter reads the source code file. |
| 2. Lexical Analysis (Scanning) | The interpreter breaks the source code into a stream of tokens (e.g., keywords, identifiers, operators). |
| 3. Syntax Analysis (Parsing) | The interpreter checks if the tokens conform to the language's grammar and builds a parse tree. |
| 4. Semantic Analysis | The interpreter checks for semantic errors (e.g., type mismatches) and gathers information about the program's meaning. |
| 5. Execution | The interpreter executes the program's instructions, translating them into machine code as needed. This is repeated for each line of code. |
Diagram (Conceptual):
`
Source Code --> Lexical Analysis --> Syntax Analysis --> Semantic Analysis --> Execution (repeated for each line)
Interpreter <--> Program (Source Code)
`