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|
// %expect 3
%{
//
// tikzparser.y
// TikZiT
//
// Copyright 2010 Chris Heunen. All rights reserved.
//
//
// This file is part of TikZiT.
//
// TikZiT 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 3 of the License, or
// (at your option) any later version.
//
// TikZiT 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 TikZiT. If not, see <http://www.gnu.org/licenses/>.
//
#include <stdio.h>
#include <string.h>
#import <Foundation/Foundation.h>
#import "TikzGraphAssembler.h"
#import "GraphElementProperty.h"
extern char* yystr;
extern int yylineno;
extern int tokenpos;
extern int yylex(void);
extern void yyerror(const char *str);
%}
%union {
NSPoint pt;
NSString *nsstr;
};
%error-verbose
%token LATEXBEGIN
%token LATEXEND
%token TIKZPICTURE
%token PGFONLAYER
%token LEFTPARENTHESIS
%token RIGHTPARENTHESIS
%token LEFTBRACKET
%token RIGHTBRACKET
%token SEMICOLON
%token COMMA
%token FULLSTOP
%token EQUALS
%token DRAW
%token TO
%token NODE
%token RECTANGLE
%token PATH
%token ALTNODE
%token AT
%token REALNUMBER
%token NATURALNUMBER
%token LWORD
%token DELIMITEDSTRING
%type<nsstr> nodename
%type<nsstr> anchor
%type<nsstr> optanchor
%type<nsstr> nodeid
%type<pt> coords
%type<nsstr> propsym
%type<nsstr> propsyms
%type<nsstr> val
%type<nsstr> number
%%
tikzpicture: LATEXBEGIN TIKZPICTURE optproperties expressions LATEXEND TIKZPICTURE;
expressions: expressions expression | ;
expression: node | edge | boundingbox | ignore;
ignore: LATEXBEGIN PGFONLAYER DELIMITEDSTRING | LATEXEND PGFONLAYER;
number: REALNUMBER { $$ = $<nsstr>1; } | NATURALNUMBER { $$ = $<nsstr>1; };
optproperties: LEFTBRACKET properties RIGHTBRACKET | ;
properties: property extraproperties;
extraproperties: COMMA property extraproperties | property extraproperties | ;
property:
val EQUALS val
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
GraphElementProperty *p = [[GraphElementProperty alloc] initWithPropertyValue:$<nsstr>3 forKey:$<nsstr>1];
[[a data] addObject:p];
[p release];
}
| val
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
GraphElementProperty *p = [[GraphElementProperty alloc] initWithAtomName:$<nsstr>1];
[[a data] addObject:p];
[p release];
};
val: propsyms { $$ = $<nsstr>1; } | DELIMITEDSTRING { $$ = $<nsstr>1; };
propsyms:
propsym { $$ = $<nsstr>1; }
| propsyms propsym
{
NSString *s = [$<nsstr>1 stringByAppendingFormat:@" %@", $<nsstr>2];
$$ = s;
};
propsym:
LWORD { $$ = $<nsstr>1; }
| number { $$ = $<nsstr>1; }
| TO { $$ = @"to"; }
| ALTNODE { $$ = @"node"; }
| RECTANGLE { $$ = @"rectangle"; }
| AT { $$ = @"at"; }
| FULLSTOP { $$ = @"."; };
nodecmd : NODE { [[TikzGraphAssembler currentAssembler] prepareNode]; };
nodename: LEFTPARENTHESIS nodeid RIGHTPARENTHESIS { $$ = $<nsstr>2; };
node:
nodecmd optproperties nodename AT coords nodelabel SEMICOLON
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
[[a currentNode] setName:$<nsstr>3];
[[a currentNode] setPoint:$<pt>5];
[a finishNode];
};
nodelabel:
DELIMITEDSTRING
{
Node *n = [[TikzGraphAssembler currentAssembler] currentNode];
[n setLabel:$<nsstr>1];
}
anchor: LWORD { $$ = $<nsstr>1; } | NATURALNUMBER { $$ = $<nsstr>1; };
optanchor: { $$ = @""; } | FULLSTOP anchor { $$ = $<nsstr>2; };
source: LEFTPARENTHESIS nodeid optanchor RIGHTPARENTHESIS
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
[a setEdgeSource:$<nsstr>2
anchor:$<nsstr>3];
};
nodeid: LWORD { $$ = $<nsstr>1; } | NATURALNUMBER { $$ = $<nsstr>1; };
coords:
LEFTPARENTHESIS number COMMA number RIGHTPARENTHESIS
{
$$ = NSMakePoint([$<nsstr>2 floatValue], [$<nsstr>4 floatValue]);
};
edgecmd : DRAW { [[TikzGraphAssembler currentAssembler] prepareEdge]; };
edge:
edgecmd optproperties source TO optedgenode target SEMICOLON
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
[a finishEdge];
};
target: LEFTPARENTHESIS nodeid optanchor RIGHTPARENTHESIS
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
[a setEdgeTarget:$<nsstr>2
anchor:$<nsstr>3];
}
| selfloop
{
TikzGraphAssembler *a = [TikzGraphAssembler currentAssembler];
[a setEdgeTarget:@""
anchor:@""];
};
selfloop: LEFTPARENTHESIS RIGHTPARENTHESIS;
altnodecmd: ALTNODE { [[TikzGraphAssembler currentAssembler] prepareNode]; };
optedgenode:
| altnodecmd optproperties nodelabel
{
[[TikzGraphAssembler currentAssembler] finishNode];
}
bbox_ignoreprops:
| LEFTBRACKET LWORD LWORD LWORD LWORD RIGHTBRACKET;
boundingbox:
PATH bbox_ignoreprops coords RECTANGLE coords SEMICOLON
{
Graph *g = [[TikzGraphAssembler currentAssembler] graph];
[g setBoundingBox:NSRectAroundPoints($<pt>3, $<pt>5)];
};
/* vi:ft=yacc:noet:ts=4:sts=4:sw=4
*/
|
