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- (* $Id: Source.md,v 1.4 1992/08/07 15:29:41 grosch rel $ *)
-
- $@ DEFINITION MODULE $Source;
-
- FROM SYSTEM IMPORT ADDRESS;
- FROM System IMPORT tFile;
-
- PROCEDURE BeginSource (FileName: ARRAY OF CHAR): tFile;
-
- (*
- BeginSource is called from the scanner to open files.
- If not called then input is read form standard input.
- *)
-
- PROCEDURE GetLine (File: tFile; Buffer: ADDRESS; Size: CARDINAL): INTEGER;
-
- (*
- GetLine is called to fill a buffer starting at address 'Buffer'
- with a block of maximal 'Size' characters. Lines are terminated
- by newline characters (ASCII = 0xa). GetLine returns the number
- of characters transferred. Reasonable block sizes are between 128
- and 2048 or the length of a line. Smaller block sizes -
- especially block size 1 - will drastically slow down the scanner.
- *)
-
- PROCEDURE CloseSource (File: tFile);
-
- (*
- CloseSource is called from the scanner at end of file or
- at end of input, respectively. It can be used to close files.
- *)
-
- $@ END $Source.
-