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Modula Definition | 1993-11-04 | 1.9 KB | 66 lines |
- (* FileIO Simple IO with more than one file Moe 18.01.84
- ====== =================================
- This module provides procedures which are similar to those of InOut,
- except that they can be used with more than one file even with the
- console).
- ------------------------------------------------------------------------*)
- DEFINITION MODULE FileIO;
-
- FROM FileSystem IMPORT File;
- FROM SYSTEM IMPORT WORD;
-
- (*EXPORT QUALIFIED
- DEL, EF, EOL, ESC,
- con, Done, termCH,
- Read, Write, WriteCard, WriteLn, WriteString,
- WriteText, WriteWord; (*25.11.,D,Dob*) *)
-
- CONST
- DEL = 177C;
- EF = 4C;
- EOL = 36C;
- ESC = 33C;
-
- VAR
- con: File; (*console file*)
- Done: BOOLEAN; (*TRUE if an operation sucessful*)
- termCH: CHAR; (*first character after input text*)
-
- PROCEDURE Read(VAR f:File; VAR ch:CHAR);
- (* Reads a character ch from the file f (no echo on the console)*)
-
- PROCEDURE Write(VAR f:File; ch:CHAR);
- (* Writes a character ch to the file f*)
-
- PROCEDURE ReadCard(VAR f:File; VAR val:CARDINAL);
-
- PROCEDURE WriteCard(VAR f:File; nr:CARDINAL; w:CARDINAL);
- (* Writes a cardinal nr with width w to the file f. If the actual
- width of nr is bigger than w, w is expanded*)
-
- PROCEDURE ReadInt(VAR f:File; VAR val:INTEGER);
-
- PROCEDURE WriteInt(VAR f:File; i:INTEGER; w:CARDINAL);
-
- PROCEDURE ReadLn(VAR f:File);
- (* Skips to the next line on the file f*)
-
- PROCEDURE WriteLn(VAR f:File);
- (* Skips to the next line on the file f*)
-
- PROCEDURE ReadString(VAR f:File; VAR s:ARRAY OF CHAR);
-
- PROCEDURE WriteString(VAR f:File; s:ARRAY OF CHAR);
- (* Write a string s to the file f. An occurrence of the character "$"
- in s causes a line feed*)
-
- PROCEDURE WriteText(VAR f:File; t:ARRAY OF CHAR; l:CARDINAL);
- (* Writes a text t with length l to the file f*)
-
- PROCEDURE ReadWord(VAR f:File; VAR w:CARDINAL);
-
- PROCEDURE WriteWord(VAR f:File; w:CARDINAL);
- (* Writes a word w without conversion to the file f*)
-
- END FileIO.
-