35 lines
1.1 KiB
Modula-2
35 lines
1.1 KiB
Modula-2
DEFINITION MODULE Arguments;
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(*
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Module: Access to program arguments and environment
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Author: Ceriel J.H. Jacobs
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Version: $Header$
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*)
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VAR Argc: CARDINAL; (* Number of program arguments, including the program
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name, so it is at least 1.
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*)
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PROCEDURE Argv( argnum : CARDINAL;
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VAR argument : ARRAY OF CHAR
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) : CARDINAL;
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(* Stores the "argnum'th" argument in "argument", and returns its length,
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including a terminating null-byte. If it returns 0, the argument was not
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present, and if it returns a number larger than the size of "argument",
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"argument" was'nt large enough.
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Argument 0 contains the program name.
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*)
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PROCEDURE GetEnv( name : ARRAY OF CHAR;
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VAR value : ARRAY OF CHAR
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) : CARDINAL;
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(* Searches the environment list for a string of the form
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name=value
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and stores the value in "value", if such a string is present.
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It returns the length of the "value" part, including a terminating
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null-byte. If it returns 0, such a string is not present, and
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if it returns a number larger than the size of the "value",
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"value" was'nt large enough.
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The string in "name" must be null_terminated.
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*)
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END Arguments.
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