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+ started RegExprReplace

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git-svn-id: trunk@5507 -
This commit is contained in:
florian 2006-11-27 16:22:39 +00:00
parent 387e2e39b9
commit 4ae36f609a
1 changed files with 27 additions and 0 deletions
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27
packages/base/regexpr/regexpr.pp
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@ -118,6 +118,8 @@ unit regexpr;
@returns(true if there was a match, otherwise false) @returns(true if there was a match, otherwise false)
} }
function RegExprPos(RegExprEngine : TRegExprEngine;p : pchar;var index,len : longint) : boolean; function RegExprPos(RegExprEngine : TRegExprEngine;p : pchar;var index,len : longint) : boolean;
// function RegExprReplace(RegExprEngine : TRegExprEngine;const src,newstr : ansistring;var dest : ansistring) : sizeint;
{ This function Escape known regex chars and place the result on Return. If something went wrong the { This function Escape known regex chars and place the result on Return. If something went wrong the
function will return false. } function will return false. }
@ -1112,6 +1114,31 @@ unit regexpr;
index:=-1; index:=-1;
end; end;
{
function RegExprReplace(RegExprEngine : TRegExprEngine;const src,newstr : ansistring;var dest : ansistring) : sizeint;
var
index,len : longint;
pos,lastpos : pchar;
begin
pos:=pchar(src);
lastpos:=pos;
{ estimate some length }
SetLength(dest,length(src)+((length(src) div 10)*length(newstr)));
while RegExprPos(RegExprEngine,pos,index,len) do
begin
if pos>lastpos then
begin
{ cast dest here because it is already unified }
move(lastpos^,char(dest[length(dest)+1)]),pos-lastpos);
SetLength(dest,Length(dest)+(pos-lastpos));
end;
dest:=dest+newstr;
inc(pos,len);
end;
{ copy remainder }
end;
}
function RegExprEscapeStr (const S : string) : string; function RegExprEscapeStr (const S : string) : string;
var var