Non-decimal radices/Convert: Difference between revisions
jq
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//optional special case for hex:
i = +('0x'+s) //hexadecimal base 16, if s='1a' then i=26.</lang>
=={{header|jq}}==
<lang jq># Convert the input integer to a string in the specified base (2 to 36 inclusive)
def convert(base):
def stream:
recurse(if . > 0 then ./base|floor else empty end) | . % base ;
if . == 0 then "0"
else [stream] | reverse | .[1:]
| if base < 10 then map(tostring) | join("")
elif base <= 36 then map(if . < 10 then 48 + . else . + 87 end) | implode
else error("base too large")
end
end;
# input string is converted from "base" to an integer, wihtin limits
# of the underlying arithmetic operations, and without error-checking:
def to_i(base):
explode
| reverse
| map(if . > 96 then . - 87 else . - 48 end) # "a" ~ 97 => 10 ~ 87
| reduce .[] as $c
# state: [power, ans]
([1,0]; (.[0] * base) as $b | [$b, .[1] + (.[0] * $c)])
| .[1];</lang>
'''Example''':
<lang jq>(255 | convert(16)),
("ff" | to_i(16)),
("10" | to_i(10))</lang>
{{Out}}
$jq -M -r -n -f Non-decimal_radices.jq
ff
255
10
=={{header|LFE}}==
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