lastIndexOf

ptrdiff_t lastIndexOf(const(Char)[] s, dchar c, CaseSensitive cs)
ptrdiff_t lastIndexOf(const(Char)[] s, dchar c, size_t startIdx, CaseSensitive cs)
ptrdiff_t lastIndexOf(const(Char1)[] s, const(Char2)[] sub, CaseSensitive cs)
@safe pure
ptrdiff_t
lastIndexOf
(
Char1
Char2
)
(
const(Char1)[] s
,
const(Char2)[] sub
,
in CaseSensitive cs = Yes.caseSensitive
)
if (
isSomeChar!Char1 &&
isSomeChar!Char2
)
ptrdiff_t lastIndexOf(const(Char1)[] s, const(Char2)[] sub, size_t startIdx, CaseSensitive cs)

Parameters

s const(Char1)[]: string to search
sub const(Char2)[]: substring to search for
cs CaseSensitive: Yes.caseSensitive or No.caseSensitive

the index of the last occurrence of sub in s. If sub is not found, then -1 is returned. The startIdx slices s in the following way s[0 .. startIdx]. startIdx represents a codeunit index in s.

Throws

If the sequence ending at startIdx does not represent a well formed codepoint, then a std.utf.UTFException may be thrown.

cs indicates whether the comparisons are case sensitive.

Examples

import std.typecons : No;

string s = "Hello World";
assert(lastIndexOf(s, "ll") == 2);
assert(lastIndexOf(s, "Zo") == -1);
assert(lastIndexOf(s, "lL", No.caseSensitive) == 2);

import std.typecons : No;

string s = "Hello World";
assert(lastIndexOf(s, "ll", 4) == 2);
assert(lastIndexOf(s, "Zo", 128) == -1);
assert(lastIndexOf(s, "lL", 3, No.caseSensitive) == -1);

lastIndexOf

Parameters

Return Value

Throws

Examples