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Function std.uni.sicmp
Does basic case-insensitive comparison of strings str1str2icmp. However keep in mind the warning below.
Prototype
int sicmp(S1, S2)( S1 str1, S2 str2 ) if (isForwardRange!S1 && is(Unqual!(ElementType!S1) == dchar) && isForwardRange!S2 && is(Unqual!(ElementType!S2) == dchar));
Parameters
| Name | Description |
|---|---|
| str1 | a string or a ForwardRange of dchars |
| str2 | a string or a ForwardRange of dchars |
Returns
An int that is 0 if the strings match,
<0 if str1str2str1str2
Warning
This function only handles 1:1 mapping and thus is not sufficient for certain alphabets like German, Greek and few others.
Example
assert(sicmp("Август", "авгусТ") == 0);
// Greek also works as long as there is no 1:M mapping in sight
assert(sicmp("ΌΎ", "όύ") == 0);
// things like the following won't get matched as equal
// Greek small letter iota with dialytika and tonos
assert(sicmp("ΐ", "\u03B9\u0308\u0301") != 0);
// while icmp has no problem with that
assert(icmp("ΐ", "\u03B9\u0308\u0301") == 0);
assert(icmp("ΌΎ", "όύ") == 0);
See Also
Authors
Dmitry Olshansky