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\G comments should appear immediately above or below the definition of
the word it belongs to. The definition line should contain no more
than the definition, a stack comment and a \ comment after which
the wordset and pronounciation.
An isolated block of \G comments is placed at the beginning of the
glossary file.

A typical glossary session may look like:
NEWGLOS MAKEGLOS SOURCE1.STR MAKEGLOS SOURCE2.STR WRITEGLOS GLOS.GLO

BUILD-HLINE   addr ---                                                         
Build header line for glossary entry.

GLOS-COMMENT?   --- flag                                                       
Determine if line at HERE is glossary comment, if so.
allot it, else store into oldline.

INSERT-HEADER   addr ---                                                       
Insert the header into the list at the alphabetically correct place.

MAKE-GLOSENTRY   fid --- fid flag                                              
Read lines from the file fid until \G line encountered.
Collect all adjacent \G lines and find header line.
then insert entry into list flag=0 if no entry found.

MAKEGLOS   "name"                                                              
This command reads a source file and builds glossary info
for it in memory.

NEWGLOS                                                                        
This command starts a fresh glossary.

PROCESS-HEADER                                                                 
Process the header information stored in OLDLINE

SCAN-WORD   ---- addr len                                                      
Scan a word on oldline through pointer charptr

WRITE-GLOSENTRY   addr fid ---                                                 
write the glossary entry at address addr to file fid.

WRITEGLOS   "name"                                                             
This command writes the glossary info from memory to a file.
The glossary info may be collected from more source files.

\G                                                                             
\G is an alias for \, so it is a comment till end-of-line, but
it has a special meaning for the Glossary Generator.