mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
NAME
|
|
inputlevel - current input level
|
|
|
|
SYNOPSIS
|
|
inputlevel()
|
|
|
|
TYPES
|
|
return nonnegative integer
|
|
|
|
DESCRIPTION
|
|
This function returns the input level at which it is called.
|
|
When calc starts, it is at level zero. The level is increased
|
|
by 1 each time execution starts of a read file command or a call to
|
|
eval(S) for some expression S which evaluates to a string. It
|
|
decreases by 1 when a file being read reaches EOF or a string
|
|
being eval-ed reaches '\0', or earlier if a quit statement is
|
|
encountered at top calculation-level in the flle or string. It
|
|
decreases to zero if an abort statement is encountered at any
|
|
function-level in the file or string. If a quit or abort
|
|
statement is encountered at top calculation-level at top input-level,
|
|
calc is exited.
|
|
|
|
Zero input level is also called top input level; greater values
|
|
of inputlevel() indicate reading at greater depths.
|
|
|
|
EXAMPLE
|
|
n/a
|
|
|
|
LIMITS
|
|
none
|
|
|
|
LIBRARY
|
|
none
|
|
|
|
SEE ALSO
|
|
read, eval, quit, abort, calclevel
|