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* fixed CharLengthPChar() implementation and added comment (from Windows

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sysutils unit) about what it does (this routine currently isn't used
    anywhere, so the bugs didn't really have any impact)

git-svn-id: trunk@29378 -
This commit is contained in:
Jonas Maebe 2015-01-03 22:58:10 +00:00
parent 95b005cab7
commit b0c7415f3a
1 changed files with 7 additions and 3 deletions
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10
rtl/unix/cwstring.pp
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@ -809,6 +809,10 @@ function CompareTextWideString(const s1, s2 : WideString): PtrInt;
end;
{ return value: number of code points in the string. Whenever an invalid
code point is encountered, all characters part of this invalid code point
are considered to form one "character" and the next character is
considered to be the start of a new (possibly also invalid) code point }
function CharLengthPChar(const Str: PChar): PtrInt;
var
nextlen: ptrint;
@ -824,14 +828,14 @@ function CharLengthPChar(const Str: PChar): PtrInt;
{$endif not beos}
repeat
{$ifdef beos}
nextlen:=ptrint(mblen(str,MB_CUR_MAX));
nextlen:=ptrint(mblen(s,MB_CUR_MAX));
{$else beos}
nextlen:=ptrint(mbrlen(str,MB_CUR_MAX,@mbstate));
nextlen:=ptrint(mbrlen(s,MB_CUR_MAX,@mbstate));
{$endif beos}
{ skip invalid/incomplete sequences }
if (nextlen<0) then
nextlen:=1;
inc(result,nextlen);
inc(result,1);
inc(s,nextlen);
until (nextlen=0);
end;