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Finds the byte index of the n-th UTF-8 codepoint.
Source position: lazutf8.pas line 104
function UTF8CodepointToByteIndex( |
UTF8Str: PChar; |
Len: PtrInt; |
CodepointIndex: PtrInt |
):PtrInt; |
UTF8Str |
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PChar with the multi-byte UTF-8-encoded values examined in the routine. |
Len |
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Length of the PChar value in UTF8Str in bytes. |
CodepointIndex |
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Position of the codepoint requested in the routine. This is 1-based, like a character index in String. |
Byte position where the requested UTF-8 codepoint is located, or -1 when a codepoint is not available for the index value.
UTF8CodepointToByteIndex is a PtrInt function used to find the byte index in UTF8Str where the n-th UTF-8 codepoint is located. It calls UTF8CodepointStart to get a pointer to the requested codepoint position.
The return value contains the difference between the pointer offsets in each of the PChar values. The return value is -1 when a codepoint is not found at the specified position.
UTF8CodepointToByteIndex ignores BIDI mode.
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Finds the n-th UTF-8 codepoint. |
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Deprecated. Use UTF8CodepointToByteIndex instead. |
| Version 3.2 | Generated 2024-02-25 | Home |