Package hec.hecmath.computation

Class Util

java.lang.Object

hec.hecmath.computation.Util

public class Util
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected static Set<String>	allOperators
protected static Map<Character,Character>	matchingBracket
protected static Pattern[][]	mathPatternLevels
protected static Pattern[][]	nonMathPatternLevels

Constructor Summary

Constructors

Constructor	Description
Util()

Method Summary

Modifier and Type	Method	Description
protected static String	buildPatternString(Set<String> ops)
static String	expandExpression(String expr)
protected static boolean	isIdChar(char c)
static boolean	isOperator(String str)
static String	join(String separator, String[] parts)
static String	join(String separator, String[] parts, int start)
static String	join(String separator, String[] parts, int start, int end)
static int	matchBracket(String expr, int pos)
static int	nestedLevel(String expr, int pos)
static String	normalizeParentheses(String expr)
static String	reSub(String src, String pattern, String repl)
static String	reSub(String src, Pattern pattern, String repl)
static String	trim(String s)
static void	validateBalancedBrackets(String expr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

matchingBracket

protected static Map<Character,Character> matchingBracket

allOperators

protected static Set<String> allOperators

nonMathPatternLevels

protected static Pattern[][] nonMathPatternLevels

mathPatternLevels

protected static Pattern[][] mathPatternLevels

Constructor Details

Util

public Util()

Method Details

isIdChar

protected static boolean isIdChar(char c)

buildPatternString

protected static String buildPatternString(Set<String> ops)

isOperator

public static boolean isOperator(String str)

reSub

public static String reSub(String src,
 String pattern,
 String repl)

reSub

public static String reSub(String src,
 Pattern pattern,
 String repl)

trim

public static String trim(String s)

join

public static String join(String separator,
 String[] parts)

join

public static String join(String separator,
 String[] parts,
 int start)

join

public static String join(String separator,
 String[] parts,
 int start,
 int end)

validateBalancedBrackets

public static void validateBalancedBrackets(String expr)
                                     throws ComputationException

Throws:

ComputationException

normalizeParentheses

public static String normalizeParentheses(String expr)

nestedLevel

public static int nestedLevel(String expr,
 int pos)
                       throws ComputationException

Throws:

ComputationException

matchBracket

public static int matchBracket(String expr,
 int pos)
                        throws ComputationException

Throws:

ComputationException

expandExpression

public static String expandExpression(String expr)
                               throws ComputationException

Throws:

ComputationException