com.tapina.robe.swi.clib.stdlib
Class GetEnv

java.lang.Object
  com.tapina.robe.runtime.Block
      com.tapina.robe.runtime.CodeBlock
          com.tapina.robe.swi.clib.Stub
              com.tapina.robe.swi.clib.stdlib.GetEnv

All Implemented Interfaces:

Executable

public class GetEnv

extends Stub

This reads the contents of an environment variable, whose name is given. In DOS it reads the DOS environment variables eg PATH, whereas in RISC OS it reads the system variable eg Obey$Dir. When reading the variables it converts numbers to strings and expands macros. You should not modify the returned string and it may be overwritten by subsequent calls to getenv. This function is equivalent to the SWI OS_ReadVarVal , with R4=3. Returns: A pointer to the variable contents.

Field Summary

Fields inherited from class com.tapina.robe.swi.clib.Stub

A1, A2, A3, A4, FP, IP, log, LR, PC, SL, SP, V1, V2, V3, V4, V5, V6

Constructor Summary

GetEnv()

Method Summary

void	executeStub(Environment environment)

Methods inherited from class com.tapina.robe.swi.clib.Stub

execute, executeSubroutine, setAddress

Methods inherited from class com.tapina.robe.runtime.CodeBlock

isExtendable

Methods inherited from class com.tapina.robe.runtime.Block

getAddress

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GetEnv

public GetEnv()

Method Detail

executeStub

public void executeStub(Environment environment)

Specified by:

executeStub in class Stub