Search ('all' for everything):
Search results:
&pos — scanning position
&subject — subject of scanning
=s — match string in scanning
any — locate initial character
bal — locate balanced characters
find — find string
many — move scanning position
match — match initial string
move — move scanning position
pos — test scanning position
s ? expr — scan string
Span — span a set of characters
tab — set scanning position
upto — locate characters
v<–>v — exchange values reversibly
v<–x — assign value reversibly

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
map
 
map characters
 
Description

s4 map(s1, s2, s3)
map(s1, s2, s3) produces a string of size s1 obtained by mapping characters of s1 that occur in s2 into corresponding characters in s3.
 
Parameters
s1
string to be mapped.
s2
string of (unique) characters in s1 to be looked up in s3.
s3
string of characters corresponding to s2 that are the replacement values. *s3 should equal *s2.
returns
s1 with characters in s2 mapped to s3.
 
Defaults
s2
string(&ucase)
s3
string(&lcase)
 
Errors
103 s1, s2 or s3 not a string
208 s2 ~= s3
 
See Also
  • any — locate initial character
  • many — move scanning position