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/***************************************************************************
* Copyright (C) 2008 by Alexey Balakin *
* mathgl.abalakin@gmail.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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QPushButton>
#include <QLabel>
#include <QLayout>
#include "qmglsyntax.h"
#include <mgl2/mgl.h>
mglParse parser;
int mgl_cmd_cmp(const void *a, const void *b);
// comment string keyword option suffix number
QColor mglColorScheme[10] = {QColor(0,127,0), QColor(255,0,0), QColor(0,0,127), QColor(127,0,0), QColor(127,0,0), QColor(0,0,255), QColor(127,0,127), QColor(0,127,127), QColor(0,0,127), QColor(255,255,204)};
//-----------------------------------------------------------------------------
QMGLSyntax::QMGLSyntax(QTextEdit *textEdit) : QSyntaxHighlighter(textEdit) {}
//-----------------------------------------------------------------------------
void QMGLSyntax::highlightBlock(const QString &text)
{
int i, j, m = text.length(),s=0;
bool arg = false, nl = true;
QString num("+-.0123456789:");
i=0;
setCurrentBlockState(-1);
if(previousBlockState()==1)
{
bool cont=false;
j=i; i++;
for(;i<m && text[i]!='\'';i++)
{
if(text[i]>' ') cont=false;
if(text[i]=='\\') cont=true;
}
setFormat(j,i-j+1,mglColorScheme[1]);
if(cont && i==m) setCurrentBlockState(1);
}
for(;i<m;i++) // highlight paragraph
{
if(text[i]=='(') s++;
if(text[i]==')') s--;
if(text[i]==' ' || text[i]=='\t') continue;
else if(text[i]=='#') // comment
{ setFormat(i,m-i,mglColorScheme[0]); break; }
else if(text[i]=='\'') // string
{
bool cont=false;
j=i; i++;
for(;i<m && text[i]!='\'';i++)
{
if(text[i]>' ') cont=false;
if(text[i]=='\\') cont=true;
}
setFormat(j,i-j+1,mglColorScheme[1]);
if(cont && i==m) setCurrentBlockState(1);
}
else if(nl) // keyword
{
char *s = new char[m+1];
for(j=i;j<text.length() && !text[j].isSpace() && text[j]!=':';j++)
s[j-i] = text[j].toLatin1();
s[j-i]=0;
int type = parser.CmdType(s);
if(type) setFormat(i,j-i+1,type!=7 ? (type==5 ? mglColorScheme[6] : mglColorScheme[2]) : mglColorScheme[7]);
delete []s;
}
else if(text[i]==';') { arg = true; nl = false; continue; }
else if(text[i]==':' && s==0) { nl=true; continue; }
else if(arg) // option
{
const char *o[13]={"xrange","yrange","zrange","cut","meshnum","alpha","light","ambient","diffuse","size","legend","number","value"};
unsigned l;
for(j=0;j<13;j++)
{
l = strlen(o[j]);
if(text.indexOf(o[j],i)==i && (i+l==long(text.length()) || text[i+l].isSpace()))
setFormat(i,l,mglColorScheme[3]);
}
}
else if(text[i]=='.' && i+1<text.length() && text[i+1].isLetter()) // suffix
{
for(j=i;j<text.length() && !text[j].isSpace();j++){};
setFormat(i,j-i+1,mglColorScheme[4]);
}
else if(num.contains(text[i])) // number
setFormat(i,1,mglColorScheme[5]);
else if((text[i]=='e' || text[i]=='E') && i+1<text.length() && num.contains(text[i-1]) && num.contains(text[i+1]) )
setFormat(i,1,mglColorScheme[5]);
else // number as its symbolic id
{
const char *o[6]={"nan","inf","pi","on","off","all"};
int l[6] = {3, 3, 2, 2, 3, 3};
for(j=0;j<6;j++)
if(text.indexOf(o[j],i)==i && (i+l[j]==text.length() || text[i+l[j]].isSpace()))
setFormat(i,l[j],mglColorScheme[5]);
}
arg = nl = false;
}
}
//-----------------------------------------------------------------------------
MessSyntax::MessSyntax(QTextEdit *textEdit) : QSyntaxHighlighter(textEdit) {}
//-----------------------------------------------------------------------------
void MessSyntax::highlightBlock(const QString &text)
{
if(text.contains("in line "))
setFormat(0, text.length(), QColor(255,0,0));
}
//-----------------------------------------------------------------------------
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