Search ('all' for everything):
Search results:
!x — generate values
&allocated — cumulative allocation
&collections — garbage collections
&features — implementation features
&regions — storage regions
&storage — storage utilization
?x — generate random value
bal — locate balanced characters
every do — generate every result
expr \ i — limit generator
expr1 | expr2 — evaluate alternatives
find — find string
function — generate function names
i to i by i — generate integers in sequence
key — generate keys from table
seq — generate sequence of integers
suspend do — suspend from procedure
upto — locate characters
v<–>v — exchange values reversibly
v<–x — assign value reversibly
|expr — evaluate repeatedly

Index of Function Types:
affects &pos
character sets
co-expressions
control structures
file processing
generators
infix operations
keywords
lists, sets and tables
math
metadata
output formatting
pattern matching
prefix operations
records
strings
windows and keyboards

Index of Subsystems:
base
digitcnt.icn
SNOBOL4 functions
 
generate values
 
Description

!x1 : x2, x3, ..., xn
!x1 is a generator.

If x1 is a file, !x1 generates the remaining lines of x1.

if x1 is a string, x1 generates the one-character substrings of x1, and produces variables if x1 is a variable.

If x1 is a list or record, !x1 generates the elements of x1, which are variables. The order of generation is from the beginning to the end.

If x1 is a set, !x1 generates the members of x1 in no predictable order.

If x1 is a table, !x1 generates the elements of x1 as variables in no predictable order.
 
Parameters
x1
file, string, variable, list, record, set or table
returns
successive values of x1 until failure.
 
Errors
103 x1 originally string, but type changed between resumptions.
116 x1 is not string, file, or a structure.
212 x1 is file but not open for reading.