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fcl-passrc: IsValidIdent for fpc 3.0

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git-svn-id: trunk@36121 -
This commit is contained in:
Mattias Gaertner 2017-05-05 14:31:27 +00:00
parent eb378c1b94
commit 1d1c310876
1 changed files with 41 additions and 0 deletions
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41
packages/fcl-passrc/src/pasresolver.pp
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@ -1531,6 +1531,9 @@ function ProcNeedsImplProc(Proc: TPasProcedure): boolean;
function ChompDottedIdentifier(const Identifier: string): string;
function FirstDottedIdentifier(const Identifier: string): string;
function IsDottedIdentifierPrefix(const Prefix, Identifier: string): boolean;
{$IF FPC_FULLVERSION<30101}
function IsValidIdent(const Ident: string; AllowDots: Boolean = False; StrictDots: Boolean = False): Boolean;
{$ENDIF}
function dbgs(const Flags: TPasResolverComputeFlags): string; overload;
function dbgs(const a: TResolvedRefAccess): string;
@ -1839,6 +1842,44 @@ begin
Result:=(length(Identifier)=l) or (Identifier[l+1]='.');
end;
{$IF FPC_FULLVERSION<30101}
function IsValidIdent(const Ident: string; AllowDots: Boolean;
StrictDots: Boolean): Boolean;
const
Alpha = ['A'..'Z', 'a'..'z', '_'];
AlphaNum = Alpha + ['0'..'9'];
Dot = '.';
var
First: Boolean;
I, Len: Integer;
begin
Len := Length(Ident);
if Len < 1 then
Exit(False);
First := True;
for I := 1 to Len do
begin
if First then
begin
Result := Ident[I] in Alpha;
First := False;
end
else if AllowDots and (Ident[I] = Dot) then
begin
if StrictDots then
begin
Result := I < Len;
First := True;
end;
end
else
Result := Ident[I] in AlphaNum;
if not Result then
Break;
end;
end;
{$ENDIF}
function dbgs(const Flags: TPasResolverComputeFlags): string;
var
s: string;