env.c File Reference

Implements OP_ENV to read an environment variable by name. More...

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Functions
	if (key.type !=VAL_STRING)
	push_value (vm, make_string(val ? val :""))
	free_value (key)

Variables
case	OP_ENV
const char *	name = key.s ? key.s : ""
const char *	val = getenv(name)
	break

Detailed Description

Implements OP_ENV to read an environment variable by name.

Behavior:

• Pops a string key from the stack and pushes the associated environment value as string.
• If the variable is not set, pushes an empty string ("") rather than Nil.

Errors:

• If the key is not a string, prints an error and terminates the VM with exit(1).

Definition in file env.c.

Function Documentation

free_value()

free_value

(

key

)

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if()

if

(

key.type !

= VAL_STRING

)

Definition at line 24 of file env.c.

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push_value()

push_value	(	vm	,
		make_string(val ? val :"")	)

Variable Documentation

break

break

Definition at line 34 of file env.c.

name

const char* name = key.s ? key.s : ""

Definition at line 29 of file env.c.

OP_ENV

case OP_ENV

Definition at line 22 of file env.c.

val

const char* val = getenv(name)

Definition at line 30 of file env.c.