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INPUTTING AND OUTPUTTING DEC 10 TEXT FILES: (May 1977)
By Jacob Palme, Swedish National Defense Research Institute,
S-104 50 Stockholm 80, Sweden.
This program contains a class FILED (which can be separately
compiled) to input and output DEC 10 ASCII-7-formatted text
files in SIMULA. The program can handle both unnumbered and
line numbered text files. For numbered files, the program will
ensure that the output file has the format on line numbers
required by other DEC 10 text handling programs like for
example SOS. Lines lacking line numbers will be given such
The good facilities for text handling in SIMULA makes it a
useful language for text handling programs like editors,
programming language translators, compilers, pre-compilers etc.
However, the reading and writing of text files on the DEC 10,
especially line numbered files, is rather tricky in SIMULA. By
using this program, you avoid those problems.
The program also contains facilities to protect you from
inputting and outputting the same file and for overwriting the
output file. If the output file already exists, the existing
file is renamed to a backup name with an extension beginning
with the letter Q.
The program can be found in a file with the name FILED.SIM on
the SIMULA distribution tape. At the QZ computing center, you
may find the file FILED.SIM on DSKE:[13,134].