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Three XPath scanner fixes:

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* #12 is not a whitespace char;
* '!' is not valid unless it is a part of '!=' token;
* Accept full XML 1.0 name character range as identifiers.

git-svn-id: trunk@13109 -
This commit is contained in:
sergei 2009-05-07 06:51:41 +00:00
parent b340822af2
commit 9fe4f59c5a
1 changed files with 17 additions and 15 deletions
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32
packages/fcl-xml/src/xpath.pp
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@ -1548,8 +1548,6 @@ function TXPathScanner.NextToken: TXPathToken;
Result := tkNumber;
end;
const
IdentifierChars = ['A'..'Z', 'a'..'z', '0'..'9', '.', '-', '_'];
begin
if FCurToken = tkEndOfStream then
begin
@ -1561,7 +1559,7 @@ begin
versions will use WideStrings -sg }
// Skip whitespace
while (FCurData[0] < #255) and (char(ord(FCurData[0])) in [#9, #10, #12, #13, ' ']) do
while (FCurData[0] < #255) and (char(ord(FCurData[0])) in [#9, #10, #13, ' ']) do
Inc(FCurData);
FTokenStart := FCurData;
@ -1575,7 +1573,9 @@ begin
begin
Inc(FCurData);
Result := tkNotEqual;
end;
end
else
Error(SScannerInvalidChar);
'"':
begin
FTokenLength := 0;
@ -1661,16 +1661,6 @@ begin
Result := tkGreater;
'@':
Result := tkAt;
'A'..'Z', 'a'..'z':
begin
FTokenLength := 1;
Result := tkIdentifier;
while (FCurData[1] < #255) and (char(ord(FCurData[1])) in IdentifierChars) do
begin
Inc(FCurData);
Inc(FTokenLength);
end;
end;
'[':
Result := tkLeftSquareBracket;
']':
@ -1678,7 +1668,19 @@ begin
'|':
Result := tkPipe;
else
Error(SScannerInvalidChar);
// TODO: no surrogate pairs/XML 1.1 support yet
if Byte(FCurData^) in NamingBitmap[NamePages[hi(Word(FCurData^))]] then
begin
FTokenLength := 1;
Result := tkIdentifier;
while Byte(FCurData[1]) in NamingBitmap[NamePages[$100+hi(Word(FCurData[1]))]] do
begin
Inc(FCurData);
Inc(FTokenLength);
end;
end
else
Error(SScannerInvalidChar);
end;
// We have processed at least one character now; eat it: