/**
 * JavaCC file
 */
 
options {
  JDK_VERSION = "1.5";
  STATIC = false; // OK to create new parsers
  IGNORE_CASE = true; // all expressions are case insensitive
}
PARSER_BEGIN(RasmolParser)
package org.simtk.parser;

import java.io.*;

/**
 * This class is autogenerated from a .jj file by
 * the javacc parser generator
 */
public class RasmolParser {
	public RasmolParser(String commandLine) throws ParseException {
		this(new BufferedReader(new StringReader(commandLine)));
		parseInput();
	}
}
PARSER_END(RasmolParser)

SKIP :
{
 	" "
|	"\t"
|   "\n"
|   "\r"
}
TOKEN :
{
	< L_BRKT: "[" >
|	< R_BRKT: "]" >
|	< COMMA: "," >
|	< INT: ( <DIGIT> )+ >
|	< #DIGIT: ["0" - "9"] >
}
void parseInput() : {}
{
  rasMolStatement() <EOF>
}
void rasMolStatement() : {}
{
	setBackgroundCommand()
}
void setBackgroundCommand() : {}
{
	setBackgroundColorPredicate() colorExpression()
}
void setBackgroundColorPredicate() : {}
{
	"set background"
|	"background" // second way to set background in pymol
|	"bg_color" // pymol script syntax
}
void colorExpression() : {}
{
	rasmolColorNumbers() 
|	rasmolColorName()
}
void rasmolColorNumbers() : {}
{
	// e.g. [255,255,255]
	<L_BRKT> <INT> <COMMA> <INT> <COMMA> <INT> <R_BRKT>
}
void rasmolColorName() : {}
{
	"blue"
|	"cyan"
|	"greenblue"
|	"orange"
|	"red"
|	"violet"
|	"yellow"
|	"black"
|	"green"
|	"magenta"
|	"purple"
|	"redorange"
|	"white"

	// blue         [0,0,255]          black        [0,0,0]
    // cyan         [0,255,255]        green        [0,255,0]
    // greenblue    [46,139,87]        magenta      [255,0,255]
    // orange       [255,165,0]        purple       [160,32,240]
    // red          [255,0,0]          redorange    [255,69,0]
    // violet       [238,130,238]      white        [255,255,255]
    // yellow       [255,255,0]
}