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ALGED Version 1
An ALGOL Editor and Indentation Program
Date: 27 February 1976
Original Author: Mats Ohlin, FOA 1, Fack,
S-104 50 STOCKHOLM, SWEDEN
Modified for ALGOL: 4 April 1978
by Dr. Walter Maner
Department of Philosophy
Old Dominion University
Norfolk, VA 23508
The ALGED program formats ALGOL source program files. If program
defaults are accepted, ALGED will indent the program to bring out its
structure, nesting pairs of BEGINs and ENDs, and will upcase ALGOL
reserved words, upcase the first character of ALGOL standard
identifiers, and lowcase user identifiers. Line numbers will be
Lines which become too long at indentation will be split at an
appropriate position (e.g., at a blank character). A warning message is
issued when the text-splitting algorithm must divide a line in an
arbitrary fashion. The algorithm is, for example, reluctant to insert a
<CR><LF> in the middle of a long text constant. By the same token, if
it detects a <CR><LF> inside a text constant (i.e., before the constant
was closed off by a free doublequote), then ALGED aborts rather than
risk making garbage of the file it is editing. Lines in the source file
longer than the record length specified for output will also cause an
The following information is requested from the user:
1. the name of the file to be formatted.
2. the name of the output file (ALGED defaults to same file as the
one specified for input).
3. the maximum record (line) length for the output file (ALGED
defaults to 132).
4. the indentation value (ALGED defaults to 3 spaces).
5. the value of the column beyond which further indentation
nesting must cease (ALGED defaults to 60).
6. whether TABS can be used to indent, thus saving some character
storage space (ALGED defaults to "NO" since the presence of
TABS can cause formatting difficulties if the file is ever
resubmitted to ALGED).
7. the conversion mode for ALGOL reserved words (ALGED defaults to
8. the conversion mode for ALGOL standard identifiers (ALGED
defaults to capitalizing the first character).
9. the conversion mode for user identifiers (ALGED defaults to
10. the conversion mode for comments and option statements (ALGED
defaults to leaving them as it found them).
11. the conversion mode for text constants (ALGED defaults to
leaving them as it found them).
The user will get the default values for each of the questions 2
through 11 if he responds with <CR><LF> when asked about them. Moreover
if, at the end of the file name for input to ALGED the user types
<ALTMODE> or <ESCAPE> instead of <CR><LF>, then the program will assume
he wishes to accept ALL remaining default values and will go to work
immediately. For further help, the user can type a '?' at run-time.
For the most attractive results, BEGINs and ENDs should appear on
lines entirely to themselves in the source file. Aesthetic
considerations would also seem to dictate that the source file not
contain more than one statement per line.
ALGED expects to find the file ALGED.DAT in SYS and will complain
if it has to look for it elsewhere. (ALGED.DAT contains a list of ALGOL
reserved words and standard identifiers.)
[End of ALGED.HLP 4 April 1978]