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gdecoder.cpp
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/*
Grecode is a tool to modify gcode for CNC machines.
Copyright (C) 2010 Bernhard Kubicek
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 3 of the License, or 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, see <http://www.gnu.org/licenses/>.
*/
#include "gdecoder.h"
#include <iostream>
#include <sstream>
#include <math.h>
#include <stdlib.h>
using namespace std;
GDecoder::GDecoder()
{
debug=true;
infostream=&cerr;
}
GDecoder::~GDecoder()
{
}
char upper(char c)
{
if(c>='a' && c<='z')
{
return c+'A'-'a';
}
else
return c;
}
void skipwhite (istream &ss)
{
while(ss.peek()==' ' ||ss.peek()=='\t')
ss.get();
}
bool isNumberchar(char c)
{
if(c>='0' &&c<='9')
return true;
if(c=='.'||c=='-'||c=='+')
return true;
return false;
}
bool isBigLetter(char c)
{
return c>='A' && c<='Z';
}
void GDecoder::parseAfterEqual(istream &gc,Word &w)
{
w.text="";
if(gc.peek()=='[') //we have an expression
{
while(gc.good() && gc.peek()!=']')
w.text+=gc.get();
if(gc.peek()==']')
w.text+=gc.get();
w.isExpression=true;
//if(debug) cerr<<"expression:"<<w.text<<endl;
}
else if(gc.peek()=='#') //parameter
{
w.text=gc.get();
while(gc.good() && isNumberchar(gc.peek()))
w.text+=gc.get();
w.isVariable=true;
//if(debug) cerr<<"parameter:"<<w.text<<endl;
}
else // we have a number
{
while(gc.good() && isNumberchar(gc.peek()))
w.text+=gc.get();
stringstream conv;
conv<<w.text;
conv>>w.value;
if (w.type=='X')
;//moveto(curPos[0],lastPos[0],w.value);
else
if (w.type=='Y')
;//moveto(curPos[1],lastPos[1],w.value);
else
if (w.type=='Z')
;//moveto(curPos[2],lastPos[2],w.value);
//if(debug) cerr<<"number:"<<w.text<<endl;
}
}
void GDecoder::ztilt(float rot,char direction)
{
float units=1;
bool moveAbsolute=true;
float lastx=0,lastz=0;
float sr=tan(rot);
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkUnits(w,units);
checkAbsolute(w,moveAbsolute);
checkVariable(w);
//cerr<<"w.type="<<w.type<<" "<<w.text<<endl;
if(w.type=='Y' )
{
lastx=evaluate(w)*units;
struct Word nw;
nw.type='Z';
stringstream ss;
ss<<lastx*sr+lastz;
nw.text=ss.str();
nw.isLiteral=false;
nw.isVariableDefine=false;
wd.insert(wd.begin()+i+1,nw);
i+=1;
cerr<<"lastx="<<lastx<<endl;
continue;
}
if(w.type=='Z' )
{
lastz=evaluate(w)*units;
modify(w,1,lastx*sr);
}
}
}
void GDecoder::alength()
{
cerr<<"Alength"<<endl;
float units=1;
bool moveAbsolute=true;
float lastx=0,lastz=0;
bool withinmove=false;
float startPos[3];
int startLine=-1;
bool wasretracted=false;
float apos=0;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkUnits(w,units);
checkAbsolute(w,moveAbsolute);
checkVariable(w);
if(w.type=='G')
if(w.text=="1")
{
withinmove=true;
startPos[0]=w.lastPos[0];
startPos[1]=w.lastPos[1];
startPos[2]=w.lastPos[2];
cerr<<"InMove"<<startPos[0]<<" "<<startPos[1]<<endl;
startLine=w.linenr;
}
if(w.lastPos[2]!=startPos[2])
{
bool down=(startPos[2]-w.lastPos[2])<0;
if(wasretracted && !down)
{
//unretract
Word a,g;
g.type='G';
g.isLiteral=true;
g.value=1;
g.text="G1 ";
a.type='A';
a.value=123;
stringstream ll;
a.isLiteral=true;
a.linenr=startLine;
ll<<"A"<<apos<<""<<" ; unretract\n";
a.text=ll.str();
/*
for(int j=0;j<10;j++)
{
int p=i-j;
if (p<0) break;
if(wd[p].type=='G')
{
wd.insert(wd.begin()+p,g);i++;
wd.insert(wd.begin()+p+1,a);i++;
break;
}
}
*/
wd.insert(wd.begin()+i+1,g);i++;
wd.insert(wd.begin()+i+1,a);i++;
wasretracted=false;
}
else
if(!wasretracted && down)
{
//retract
Word a,g;
g.isLiteral=true;
g.type='G';
g.value=1;
g.text="G1 ";
a.type='A';
a.value=123;
stringstream ll;
a.isLiteral=true;
a.linenr=startLine;
ll<<"A["<<apos<<"-#655]"<<" ; retract\n";
a.text=ll.str();
for(int j=0;j<10;j++)
{
int p=i-j;
if (p<0) break;
if(wd[p].type=='G')
{
wd.insert(wd.begin()+p,g);i++;
wd.insert(wd.begin()+p+1,a);i++;
break;
}
}
wasretracted=true;
}
}
//if(w.text.find("\n")!=std::string::npos)
if(withinmove && ((w.linenr!=startLine) || w.text=="\n"))
{
withinmove=false;
float l=sqrt( SQR(startPos[0]-w.lastPos[0])+SQR(startPos[1]-w.lastPos[1]) );
if(l!=0)
{
Word a;
a.type='A';
a.value=l;
stringstream ll;
a.isLiteral=true;
a.linenr=startLine;
apos+=l;
ll<<"A["<<apos<<"*#654]"<<" ; "<<startPos[0]<<" "<<startPos[1]<<" ->"<<w.lastPos[0]<<" "<<w.lastPos[1];
a.text=ll.str();
wd.insert(wd.begin()+i,a);
i++;
//cerr<<"EndMove"<<l<<endl;
}
}
}
}
int GDecoder::read(std::istream &gc)
{
std::string wholeline; // the text of the complete line
bool lhasx,lhasy,lhasboth; // line has '' word
*infostream<<"READING"<<endl;
int linenr=1;
while(gc.good())
{
//*infostream<<linenr<<endl;
char c;
skipwhite(gc);
c=upper(gc.get());
if(!gc.good())
break;
wd.resize(wd.size()+1);
struct Word &w=wd.back();
w.isExpression=false;
w.isVariable=false;
w.isLiteral=false;
w.isVariableDefine=false;
w.linenr=linenr;
if(isBigLetter(c)) //probably real code
{
w.type=c;
//if(debug) cerr<<"type:\""<<c<<"\""<<endl;
w.text="";
skipwhite(gc);
parseAfterEqual(gc,w);
//if(debug) cerr<<" word "<<w.type<<": \""<<w.text<<"\""<<endl;
}
else //not big letter
{ //store the uninteresting code also as ' ' words, so they can be outputted
w.isLiteral=true;
w.type=' ';
w.text=c;
string tmp;
switch(c)
{
case ';':
getline(gc,tmp,'\n');
w.text+=tmp+"\n";
linenr++;
//if(debug) cerr<<" comment text: \""<<w.text<<"\""<<endl;
break;
case '(':
getline(gc,tmp,')');
w.text+=tmp+')';
linenr++;
//if(debug) cerr<<" comment text: \""<<w.text<<"\""<<endl;
break;
case 13: //windows line feed
case '\n':
w.text='\n';
linenr++;
//if(debug) cerr<<"Newline"<<endl;
break;
case '#': //variable declaration
{
w.isVariableDefine=true;
w.isLiteral=false;
w.type=c;
stringstream ss("");
while(gc.good() && isNumberchar(gc.peek()))
{
ss<<(char)gc.get();
}
//*infostream<<"variable number text: \""<<ss.str()<<"\""<<endl;
ss>>w.varNumber;
skipwhite(gc);
char equal=gc.get();
if(equal!='=')
{
*infostream<<"ERROR: expected '=' in variable definition, but got \""<<c<<"\" instead."<<endl;
}
//*infostream<<"peek:"<<(char)(gc.peek())<<endl;
parseAfterEqual(gc,w);
//*infostream<<"Variable definition: #"<<w.varNumber<<"=\""<<w.text<<"\""<<endl;
}
break;
default:
getline(gc,w.text);
w.text+='\n';
linenr++;
if(w.text.size()>0)
{
*infostream<<" problem with text: tag \""<<c<<"\" \""<<w.text<<"\""<<endl;
}
}
}
}
calcPositions();
findBounds();
*infostream<<"input file has "<<linenr<<" lines "<<endl;
}
void GDecoder::calcPositions()
{
*infostream<<"CALCPOSITIONS"<<endl;
bool moveAbsolute=true;
float units=1;
float curx=0,cury=0,curz=0;
float newx=0,newy=0,newz=0;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkVariable(w);
checkUnits(w,units);
checkAbsolute(w,moveAbsolute);
w.lastPos[0]=curx;
w.lastPos[1]=cury;
w.lastPos[2]=curz;
newx=curx;newy=cury;newz=curz;
switch(w.type)
{
case 'X':
if(moveAbsolute)
newx=evaluate(w)*units;
else
newx=curx+evaluate(w)*units;
break;
case 'Y':
if(moveAbsolute)
newy=evaluate(w)*units;
else
newy=cury+evaluate(w)*units;
break;
case 'Z':
if(moveAbsolute)
newz=evaluate(w)*units;
else
newz=curz+evaluate(w)*units;
break;
default:
;
}
w.curPos[0]=newx;
w.curPos[1]=newy;
w.curPos[2]=newz;
//if(w.type=='X' || w.type=='Y' ||w.type=='Z' )
;//cout<<curx<<" "<<cury<<" "<<curz<<" "<<units<<endl;
//*infostream<<"word "<<w.type<<w.text<<" curpos"<<w.curPos[0]<<" "<<w.curPos[1]<<" lastpos"<<w.lastPos[0]<<" "<<w.lastPos[1]<<endl;
curx=newx;
cury=newy;
curz=newz;
}
}
void GDecoder::findBounds()
{
*infostream<<"FINDBOUNDS"<<endl;
xmin=ymin=100000;
xmax=ymax=-100000;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkVariable(w);
if(w.type=='X')
{
if(w.curPos[0]>xmax)
xmax=w.curPos[0];
else
if(w.curPos[0]<xmin)
xmin=w.curPos[0];
}
if(w.type=='Y')
{
if(w.curPos[1]>ymax)
ymax=w.curPos[1];
else
if(w.curPos[1]<ymin)
ymin=w.curPos[1];
}
}
cxmin=cymin=100000;
cxmax=cymax=-100000;
bool isCutting;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkVariable(w);
if(w.type=='G' && (w.text=="01"||w.text=="1"))
isCutting=true;
else
if(w.type=='G' && (w.text=="00"||w.text=="0"))
isCutting=false;
if(!isCutting)
continue;
if(w.type=='X')
{
if(w.curPos[0]>cxmax)
cxmax=w.curPos[0];
else
if(w.curPos[0]<cxmin)
cxmin=w.curPos[0];
}
if(w.type=='Y')
{
if(w.curPos[1]>cymax)
cymax=w.curPos[1];
else
if(w.curPos[1]<cymin)
cymin=w.curPos[1];
}
}
infostream->precision(3);
*infostream<<"Potential Total Bounds:\n x in \t"<<xmin<<"\t"<<xmax<<" extension "<<xmax-xmin<<"\n y in \t"<<ymin<<"\t"<<ymax<<" extension "<<ymax-ymin<<endl;;
*infostream<<"Potential Cut Bounds:\n x in \t"<<cxmin<<"\t"<<cxmax<<" extension "<<cxmax-cxmin<<"\n y in \t"<<cymin<<"\t"<<cymax<<" extension "<<cymax-cymin<<endl;;
}
void GDecoder::modify(Word &w, float scale, float shift)
{
stringstream ss;
ss.precision(5);
ss<<fixed;
//*infostream<<"Modify:"<<w.type<<w.text<<" "<<scale<<" "<<shift<<endl;
if(w.isExpression ||w.isVariable)
{
ss<<"[";
if(shift!=0)
ss<<shift<<"+";
string add=w.text;
if(add[0]=='[' && scale==1 )
{
//cout<<"ADD:"<<add;
add.erase(w.text.size()-1);
add.erase(0,1);
//cout<<" ->"<<add;
}
if(scale==-1)
ss<<"-"<<add;
else
if(scale==1)
ss<<add;
else
ss<<scale<<"*"<<w.text;
ss<<"] ";
}
else
ss<<shift+scale*w.value<<" ";
w.text=ss.str();
ss>>w.value;
}
void GDecoder::output(ostream &out)
{
out.setf(ios_base::fixed);
out.precision(5);
out<<fixed;
//out<<";###############"<<endl;
//out<<"; possible total bounding box: x in "<<xmin<<" "<<xmax<<" y in "<<ymin<<" "<<ymax<<endl;
//out<<"; possible cutting bounding box: x in "<<cxmin<<" "<<cxmax<<" y in "<<cymin<<" "<<cymax<<endl;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
if(w.isLiteral)
out<<w.text;
else
if(w.isVariableDefine)
out<<w.type<<w.varNumber<<"="<<w.text<<" ";
else
out<<w.type<<w.text<<" ";
}
//out<<";###############"<<endl;
//out<<endl;
}
void GDecoder::outputGnuplot(ostream &out)
{
out.setf(ios_base::fixed);
out.precision(5);
out<<fixed;
out<<"# plot using gnuplot:\n#splot \"filename.xy\" u 1:2:3:4 w lp palette"<<endl;
int lastxmove=0,lastymove=0,lastzmove=0;
bool rapid=false;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkVariable(w);
bool breakchain=false;
checkBreak(w,lastxmove,lastymove,i, breakchain);
if(w.type=='Z' && lastzmove!=0)
breakchain=true;
/*
*infostream<<"Gnuplot: "<<" Word Type '"<<w.type<<"' \""<<w.text<<"\" ";
if (breakchain)
*infostream<<"breaks"<<endl;
else
*infostream<<"continues"<<endl;
*infostream<<"lastpos "<<lastxmove<< " "<<lastymove<<endl;
*/
if(breakchain)
{
out<<w.curPos[0]<<" "<<w.curPos[1]<<" "<<w.curPos[2]<<" ";
if(rapid)
out<<"1";
else
out<<"0";
out<<endl;
//*infostream<<" curpos: "<<w.curPos[0]<<" "<<w.curPos[1]<<" "<<w.curPos[2]<<endl;;
lastxmove=0;
lastymove=0;
}
if(w.type=='X') lastxmove=i;
if(w.type=='Y') lastymove=i;
//if(w.type=='Z') lastymove=i;
if(w.type=='G' && (w.text=="00"||w.text=="0"))
rapid=true;
if(w.type=='G' && (w.text=="01"||w.text=="1"))
rapid=false;
}
}
void GDecoder::shift(float dx,float dy)
{
//cerr<<"Shifting:"<<dx<<" "<<dy<<endl;
float units=1;
bool moveAbsolute=true;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkUnits(w,units);
checkAbsolute(w,moveAbsolute);
if(w.type=='X' && dx!=0)
modify(w,1,dx/units);
if(w.type=='Y' && dy!=0)
modify(w,1,dy/units);
}
}
void GDecoder::scale(float sx,float sy)
{
static bool arcMessageDisplayed=false;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkVariable(w);
if(w.type=='X' && sx!=1)
modify(w,sx);
if(w.type=='Y' && sy!=1)
modify(w,sy);
if(w.type=='G' && (w.text=="2"||w.text=="02") && sx*sy==-1)
{
w.text="03";
}
else
if(w.type=='G' && (w.text=="3"||w.text=="03") && sx*sy==-1)
{
w.text="02";
}
if(w.type=='I' && sx!=1)
{
if(sx==sy||sx==1||sx==-1)
modify(w,sx);
else
{
if(!arcMessageDisplayed)
*infostream<<"PROBLEM: arcs cannot not be scaled arbitrarily"<<endl;
arcMessageDisplayed=true;
}
}
if(w.type=='J' && sy!=1)
{
if(sx==sy||sy==1||sy==-1)
modify(w,sy);
else
{
if(!arcMessageDisplayed)
*infostream<<"PROBLEM: arcs cannot not be scaled arbitrarily"<<endl;
arcMessageDisplayed=true;
}
}
}
}
void GDecoder::xyexchange()
{
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
switch(w.type)
{
case 'X': w.type='Y';break;
case 'Y': w.type='X';break;
case 'I': w.type='J';break;
case 'J': w.type='I';break;
case 'G':
if(w.text=="02"||w.text=="2")
{
w.text="03";
}
else
if(w.text=="03"||w.text=="3")
{
w.text="02";
}
break;
default:
;
}
}
}
float GDecoder::evaluate(Word &w)
{
static bool expErrorShowed=false;
static bool varErrorShowed=false;
if(w.isExpression)
{
if(!expErrorShowed)
*infostream<<"Bounding box ERROR: Expression substitution not implemented yet"<<endl;
expErrorShowed=true;
return 0;
}
if(w.isVariable)
{
stringstream ss(w.text);
ss.get();
int varnumber;
ss>>varnumber;
if(vs.isValue[varnumber])
{
//*infostream<<"replacing variable "<<varnumber<<" by "<<vs.value[varnumber]<<endl;
return vs.value[varnumber];
}
if(!varErrorShowed)
{
*infostream<<"Bounding box ERROR: Variable substitution not implemented yet"<<endl;
*infostream<<"Word: "<<w.type<<" "<<w.text<<endl;
}
varErrorShowed=true;
return 0;
}
if(w.isLiteral)
{
return 0;
}
if(fabs(w.value)>1000)
{
*infostream<<"Warning very large value in"<<endl;
*infostream<<"Word: "<<w.type<<" "<<w.text<<endl;
}
return w.value;
}
int GDecoder::parameterize(int startnumber,int minoccurence,char direction)
{
vector<float> vals;
vector<float> valcount;
vals.reserve(1000);
valcount.reserve(1000);
//count occurences of value fields
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
if(w.type==direction && !w.isExpression && !w.isVariable)
{
bool found=false;
for(int j=0;j<vals.size();j++)
{
if(vals[j]==w.value)
{
valcount[j]++;
found=true;
// *infostream<<"tag again:"<<w.value<<" "<<valcount[j]<<endl;
break;
}
}
if(!found)
{
//*infostream<<"new tag:"<<w.value<<endl;
vals.push_back(w.value);
valcount.push_back(0);
}
}
}
vector<float> parameters;
parameters.reserve(100);
int insertcount=0;
//find appropriate parameters
for(int j=0;j<vals.size();j++)
{
if(valcount[j]>minoccurence)
{
parameters.push_back(vals[j]);
Word nw;
nw.type=' ';
nw.isVariable=false; //not a single variable in a word, but a defininition
nw.isExpression=false;
nw.isLiteral=true;
stringstream ss;
ss<<"#"<<startnumber+parameters.size()-1<<"="<<vals[j]<<" ; auto direction "<<direction<<" occurences:"<< valcount[j]<<" value="<<vals[j]<<endl;
nw.text=ss.str();
wd.insert(wd.begin()+insertcount++,nw);
*infostream<<"found parameter:"<<vals[j]<<endl;
}
}
//insert parameters
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
if(w.type==direction && !w.isExpression && !w.isVariable)
{
for(int j=0;j<parameters.size();j++)
if(w.value==parameters[j])
{
w.isVariable=true;
stringstream ss;
ss<<"#"<<startnumber+j;
w.text=ss.str();
break;
}
}
}
return parameters.size();
}
void GDecoder::simplify(bool drop_Nwords,bool drop_comments)
{
int i=0;
do
{
// *infostream<<" now at "<<i<<endl;
if(drop_Nwords && wd[i].type=='N')
{
wd.erase(wd.begin()+i);
}
else if(drop_comments && wd[i].type==';')
{
wd[i].type=' ';
wd[i].text='\n';
i++;
}
else if(drop_comments && wd[i].type=='(')
{
wd.erase(wd.begin()+i);
}
else
i++;
}while(i<wd.size());
}
void GDecoder::fullmatrix(double shift[2],double m[4])
{
int lastxmove=0,lastymove=0;
int lastimove=0,lastjmove=0;
bool moveAbsolute=true;
*infostream<<"FULL MATRIX OPERATION: Shift: "<<shift[0]<<" "<<shift[1]<<" Matrix "<<m[0]<<" "<<m[1]<<" , "<<m[2]<<" "<<m[3]<<endl;
float units=1;
float newunits=1;
bool megadebug=false;
for(int i=0;i<wd.size();i++)
{
struct Word &w=wd[i];
checkUnits(w,newunits);
checkAbsolute(w,moveAbsolute);
bool breakchain=false;
//*infostream<<"Prebreak lastmoves:"<<lastxmove<<" "<<lastymove<<endl;
checkBreak(w,lastxmove,lastymove,i,breakchain);
if(megadebug)
{
if(w.type==' ' && w.text=="\n")
{
if(breakchain)
*infostream<<"#"<<w.linenr+1<<" endl breaks before"<<endl;
else
*infostream<<"#"<<w.linenr+1<<" continues"<<endl;
}
else
{
*infostream<<"#"<<w.linenr<<" "<<w.type<<w.text;
if(breakchain)
*infostream<<" breaks ";
else
*infostream<<" continues ";
*infostream<<" curpos "<<w.curPos[0]<<" "<<w.curPos[1];
*infostream<<" lastpos "<<w.lastPos[0]<<" "<<w.lastPos[1]<<endl;
}
}
//if(w.linenr==7){output(*infostream);exit(1);}
if(lastxmove==0 &&lastymove==0)
breakchain=false;
if(breakchain) //end of a unified move found
{
if(w.isExpression && (w.type=='X'||w.type=='Y'||w.type=='Z'))
{
cerr<<"Cannot only rotate free with no gcode expressions [] !"<<endl;
return ;
}
if(lastxmove==0||lastymove==0) //we have to insert one more word as rotated needs more than the specified words
{
Word iw;//instertword
//*infostream<<"lasts:"<<lastxmove<<" "<<lastymove<<" inserting between:"<<wd[i-1].type<<wd[i-1].text<<" and "<<wd[i].type<<wd[i].text<<endl;
std::vector<Word>::iterator it=wd.begin();
//*infostream<<"wd.size before "<<wd.size()<<endl;
wd.insert(it+i,iw);
//*infostream<<"wd.size after"<<wd.size()<<endl;
int neww=i;
//*infostream<<"inserting at"<<i<<endl;
i++;
wd[neww].isExpression=false;
wd[neww].isVariable=false;
wd[neww].isLiteral=false;
wd[neww].isVariableDefine=false;
wd[neww].linenr=wd[i].linenr;
wd[neww].type='(';
wd[neww].text="()";
wd[neww].value=0;
if(lastxmove==0)
{
wd[neww].type='X';
lastxmove=neww;
wd[neww].value=wd[i].lastPos[0];
stringstream ss;
ss<<wd[neww].value;
wd[neww].text=ss.str();
//modify(wd[lastxmove],0,wd[i].lastPos[0]);
}
else
{
wd[neww].type='Y';
lastymove=neww;
stringstream ss;
wd[neww].value=wd[i].lastPos[1];
ss<<wd[neww].value;
wd[neww].text=ss.str();
//modify(wd[lastymove],0,wd[i].lastPos[1]);
}
wd[neww].lastPos[0]=wd[i].lastPos[0];
wd[neww].lastPos[1]=wd[i].lastPos[1];
wd[neww].lastPos[2]=wd[i].lastPos[2];
//*infostream<<"newword:"<<wd[neww].text<<endl;
/*
for(int g=5;g>=-1;g--)
{
*infostream<<"->";
if(i-g==neww) *infostream<<" * ";
*infostream<<wd[i-g].type<<" "<<wd[i-g].text<<" ";
}
*infostream<<endl;
*/
}
//*infostream<<"lastx:"<<wd[lastxmove].type<<wd[lastxmove].text<<" lasty:"<<wd[lastymove].type<<wd[lastymove].text<<endl;
if(wd[lastxmove].type!='X')