51 lines
1.1 KiB
Modula-2
51 lines
1.1 KiB
Modula-2
MODULE Compiler;
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FROM FIO IMPORT Close, IsNoError, File, OpenToRead, StdErr, StdOut, WriteLine, WriteString;
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FROM SYSTEM IMPORT ADR;
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FROM M2RTS IMPORT HALT, ExitOnHalt;
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FROM Lexer IMPORT Lexer, lexer_destroy, lexer_initialize;
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FROM Transpiler IMPORT transpile;
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FROM CommandLineInterface IMPORT PCommandLine, parse_command_line;
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VAR
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command_line: PCommandLine;
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PROCEDURE compile_from_stream();
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VAR
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lexer: Lexer;
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source_input: File;
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BEGIN
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source_input := OpenToRead(command_line^.input);
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IF IsNoError(source_input) = FALSE THEN
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WriteString(StdErr, 'Fatal error: failed to read the input file "');
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WriteString(StdErr, command_line^.input);
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WriteString(StdErr, '".');
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WriteLine(StdErr);
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ExitOnHalt(2)
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END;
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IF IsNoError(source_input) THEN
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lexer_initialize(ADR(lexer), source_input);
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transpile(ADR(lexer), StdOut, command_line^.input);
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lexer_destroy(ADR(lexer));
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Close(source_input)
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END
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END compile_from_stream;
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BEGIN
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ExitOnHalt(0);
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command_line := parse_command_line();
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IF command_line <> NIL THEN
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compile_from_stream()
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END;
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IF command_line = NIL THEN
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ExitOnHalt(1)
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END;
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HALT()
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END Compiler.
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