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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;
-
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