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{
girtokens.pas
Copyright (C) 2011 Andrew Haines andrewd207@aol.com
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
}
unit girTokens;
{$mode objfpc}{$H+}
interface
uses
Classes;
type
TGirToken = (gtInvalid, gtEmpty, gtAlias, gtConstant, gtRecord, gtBitField, gtEnumeration,
gtCallback, gtUnion, gtFunction, gtReturnValue, gtType,
gtParameters, gtParameter, gtInstanceParameter, gtMember, gtField, gtMethod, gtArray,
gtDoc, gtDocDeprecated, gtConstructor, gtRepository, gtInclude, gtNameSpace, gtPackage,
gtCInclude, gtClass, gtProperty, gtVirtualMethod, gtInterface,
gtGlibSignal, gtImplements, gtPrerequisite,gtVarArgs, gtObject, gtClassStruct, gtGType,
// Direction for parameters. in is default = no pointer. out and inout means one pointer level.
// If subnode is array then increase pointer level.
gtIn, gtOut, gtInOut, gtSourcePosition, gtFunctionMacro, gtDocSection, gtAttribute
);
TGirVersion = object
Major: Integer;
Minor: Integer;
function AsString: String; // '$major.$minor'
function AsMajor: TGirVersion; // return as $major.0 i.e 3.0 instead of 3.8
end;
var
GirTokenName: array[TGirToken] of String = (
'Invalid Name',
'{empty}',
'alias',
'constant',
'record',
'bitfield',
'enumeration',
'callback',
'union',
'function',
'return-value',
'type',
'parameters',
'parameter',
'instance-parameter',
'member',
'field',
'method',
'array',
'doc',
'doc-deprecated',
'constructor',
'repository',
'include',
'namespace',
'package',
'c:include',
'class',
'property',
'virtual-method',
'interface',
'glib:signal',
'implements',
'prerequisite',
'varargs',
'object',
'classstruct',
'gtype',
'in',
'out',
'inout',
'source-position',
'function-macro',
'docsection',
'attribute'
);
function GirTokenNameToToken(AName: String): TGirToken;
function girVersion(AVersion: String; ADefaultMajor: Integer = -1; ADefaultMinor: Integer = -1): TGirVersion;
function girVersion(AMajor, AMinor: Integer): TGirVersion;
operator >= (AVersion, BVersion: TGirVersion): Boolean;
operator <= (AVersion, BVersion: TGirVersion): Boolean;
operator > (AVersion, BVersion: TGirVersion): Boolean;
implementation
uses
sysutils;
function GirTokenNameToToken(AName: String): TGirToken;
begin
if AName = '' then
Exit(gtEmpty);
try
for Result in TGirToken do
if GirTokenName[Result][1] <> AName[1] then
continue
else if GirTokenName[Result] = AName then
Exit;
Result := gtInvalid;
except
WriteLn('GirToken Exception: ',AName);
end;
end;
function girVersion(AVersion: String; ADefaultMajor: Integer; ADefaultMinor: Integer): TGirVersion;
var
SplitPoint: Integer;
Minor: String;
begin
if (AVersion = '') and (ADefaultMajor <> -1) and (ADefaultMinor <> -1) then
begin
Result := girVersion(ADefaultMajor, ADefaultMinor);
Exit;
end;
SplitPoint := Pos('.', AVersion);
if SplitPoint < 1 then
raise Exception.Create(Format('Invalid version string format: "%s" (length %d)', [AVersion, Length(AVersion)]));
Result.Major:=StrToInt(Copy(AVersion,1, SplitPoint-1));
Minor := Copy(AVersion,SplitPoint+1, MaxInt);
SplitPoint := Pos('.', Minor);
// we are not interested in the third version chunk
if SplitPoint > 0 then
Minor := Copy(Minor,1, SplitPoint-1);
Result.Minor:=StrToInt(Minor);
end;
function girVersion(AMajor, AMinor: Integer): TGirVersion;
begin
REsult.Major := AMajor;
Result.Minor := AMinor;
end;
operator >= (AVersion, BVersion: TGirVersion): Boolean;
begin
Result := (AVersion.Major > BVersion.Major)
or ((AVersion.Major = BVersion.Major) and (AVersion.Minor >= BVersion.Minor));
end;
operator<=(AVersion, BVersion: TGirVersion): Boolean;
begin
Result := (AVersion.Major < BVersion.Major)
or ((AVersion.Major = BVersion.Major) and (AVersion.Minor <= BVersion.Minor));
end;
operator > (AVersion, BVersion: TGirVersion): Boolean;
begin
Result := (AVersion.Major > BVersion.Major)
or ((AVersion.Major = BVersion.Major) and (AVersion.Minor > BVersion.Minor));
end;
{ TGirVersion }
function TGirVersion.AsString: String;
begin
Result := IntToStr(Major)+'.'+IntToStr(Minor);
end;
function TGirVersion.AsMajor: TGirVersion;
begin
Result.Major:=Major;
REsult.Minor:=0;
end;
end.
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