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The Original Shareware 1.1
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The Original Shareware (WeMake CDs)(Volume 1.1)(CDs, Inc)(1993).iso
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ENVIRON.HLP
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1988-07-14
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\ ENVIRON.HLP Environment manipulation words by Tom Zimmer
evseg ( --- n1 )
Return n1 the value of the environment segment.
envsize ( --- n1 )
Calculate n1 the size of the environment in bytes, clipped
to about 31k bytes.
"envfind ( a1 n1 --- n2 bool )
Search the environment for the string specified by a1,n1.
Return a boolean flag TRUE if found, and n1 the offset
into the environment where the match occured.
.env ( --- )
Display the current contents of the environment string.
comspec$ ( --- a1 )
The handle used to hold the COMSPEC string. I.e. COMMAND.COM
comspec@ ( --- )
Read the environment string, and extrac the COMSPEC
parameter. the COMSPEC is inserted in the COMSPEC$ handle.
.comspec ( --- )
Print the current COMSPEC.
handle me$
: me@ ( --- ) \ extract my own execution name string
me$ dup off 2 "envfind 0=
abort" Couldn't find my execution name."
4 + envsize swap
me$ dup clr-hcb >nam -rot
do evseg i c@l 0= ?leave
evseg i c@l over c! 1+
me$ c@ 1+ me$ c!
loop drop ;
: .me ( --- ) me@ me$ count type ;
comment:
envsize ( --- n1 )
Return the maximum size the environment can be in bytes.
.env ( --- )
Print the environment string used by the system.
"envfind ( a1 n1 --- n2 bool )
Find the string a1 n1 in the environment, returning
bool true if found, and n2 the offset into env$ where it
was found. N2 is the offset to the BEGINNING of the
string searched for.
comspec$
Storage space for the command spec string.
comspec@ ( --- )
Extract the command spec from the environment string.
.comspec ( --- )
Print the command spec.
path$ ( --- a1 )
Storage space for the PATH string.
path@ ( --- )
Extract the PATH from the environment string.
.path ( --- )
Print the PATH.
me$
Storage space for the execution string used to execute
this forth currently running.
me@ ( --- )
Extract the execution string from the environment, and
place it in the string ME$
.me ( --- )
Print the execution string after extracting it.
comment;