Selectively replace multiple instances of a character within a string: Difference between revisions
Selectively replace multiple instances of a character within a string (view source)
Revision as of 11:25, 3 June 2022
, 2 years agoAdded Vlang
m (→{{header|J}}: get left and right right) |
(Added Vlang) |
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Line 211:
<pre>abracadabra -> AErBcadCbFD
caarabadrab -> cABraECdFDb</pre>
=={{header|Vlang}}==
A similar approach to the C++ entry.
<lang ruby>fn selectively_replace_chars(s string, char_map map[string]string) string {
mut bytes := s.bytes()
mut counts := {
'a': 0
'b': 0
'r': 0
}
for i := s.len - 1; i >= 0; i-- {
c := s[i].ascii_str()
if c in ['a', 'b', 'r'] {
bytes[i] = char_map[c][counts[c]]
counts[c]++
}
}
return bytes.bytestr()
}
fn main() {
char_map := {
'a': 'DCaBA'
'b': 'bE'
'r': 'Fr'
}
for old in ['abracadabra', 'caaarrbabad'] {
new := selectively_replace_chars(old, char_map)
println('$old -> $new')
}
}</lang>
{{out}}
<pre>
abracadabra -> AErBcadCbFD
caaarrbabad -> cABarFECbDd
</pre>
=={{header|Wren}}==
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