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Ingy döt Net 2013-10-27 22:24:23 +00:00
parent 6f050a029e
commit 776bba907c
3887 changed files with 59894 additions and 7280 deletions
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18
Task/Determine-if-a-string-is-numeric/D/determine-if-a-string-is-numeric-2.d
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@ -1,16 +1,16 @@
import std.stdio, std.string, std.conv, std.array, std.exception;
bool isNumeric(in string s) /*pure*/ {
const s2 = s.strip().toLower().replace("_", "").replace(",", "");
bool isNumeric(in string s) pure {
immutable s2 = s.strip.toLower.replace("_", "").replace(",", "");
try {
s2.to!real();
s2.to!real;
} catch (ConvException e) {
if (s2.startsWith("0x"))
return !to!ulong(s2[2 .. $], 16)
.collectException!ConvException();
return !s2[2 .. $].to!ulong(16)
.collectException!ConvException;
else if (s2.startsWith("0b"))
return !to!ulong(s2[2 .. $], 2)
.collectException!ConvException();
return !s2[2 .. $].to!ulong(2)
.collectException!ConvException;
else
return false;
}
@ -19,9 +19,9 @@ bool isNumeric(in string s) /*pure*/ {
}
void main() {
foreach (const s; ["12", " 12\t", "hello12", "-12", "02"
foreach (immutable s; ["12", " 12\t", "hello12", "-12", "02"
"0-12", "+12", "1.5", "1,000", "1_000",
"0x10", "0b10101111_11110000_11110000_00110011",
"-0b10101", "0x10.5"])
writefln(`isNumeric("%s"): %s`, s, isNumeric(s));
writefln(`isNumeric("%s"): %s`, s, s.isNumeric);
}