Interpreter
- Interpreter is a kind of language processor
- Instead of producing a target program as a translation, it directly executes the operations specified in the source program, on inputs supplied by the user, statement by statement
- This can be shown as
Differences between Interpreter and Compiler
Compiler
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Interpreter
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Compiler is a program which takes one language
(source program) as input and translates it into an equivalent another
language (target program)
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An Interpreter is a kind of translator which
produces the result directly when the source language and data is given to it
as input
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Translates the entire program at a time
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Translates program statement by statement
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Shows up all the errors, if present, in the program
at a time
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Stops if any error occurs in running a statement
and proceeds only after it is corrected
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Once compilation is successfully completed, one
can run the target code without using the compiler
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Each execution must involve the interpreter as
it is not going to generate any target code like compiler
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Not so good as interpreter for interactive
environments
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Gives better error diagnostics than compiler and
good for interactive environments
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Faster process
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Slower process
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Examples: C,PASCAL etc.
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Examples: BASIC, SNOBOL etc.
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