Package org.codehaus.groovy.syntax
Class Numbers
- java.lang.Object
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- org.codehaus.groovy.syntax.Numbers
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public class Numbers extends java.lang.Object
Helper class for processing Groovy numeric literals.
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Constructor Summary
Constructors Constructor Description Numbers()
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Method Summary
All Methods Static Methods Concrete Methods Deprecated Methods Modifier and Type Method Description static boolean
isDigit(char c)
Returns true if the specified character is a base-10 digit.static boolean
isHexDigit(char c)
Returns true if the specified character is a base-16 digit.static boolean
isNumericTypeSpecifier(char c, boolean isDecimal)
Returns true if the specified character is a valid type specifier for a numeric value.static boolean
isOctalDigit(char c)
Returns true if the specific character is a base-8 digit.static java.lang.Number
parseDecimal(java.lang.String text)
Builds a Number from the given decimal descriptor.static java.lang.Number
parseInteger(antlr.collections.AST reportNode, java.lang.String text)
Builds a Number from the given integer descriptor.static java.lang.Number
parseInteger(java.lang.String text)
Deprecated.
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Method Detail
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isDigit
public static boolean isDigit(char c)
Returns true if the specified character is a base-10 digit.
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isOctalDigit
public static boolean isOctalDigit(char c)
Returns true if the specific character is a base-8 digit.
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isHexDigit
public static boolean isHexDigit(char c)
Returns true if the specified character is a base-16 digit.
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isNumericTypeSpecifier
public static boolean isNumericTypeSpecifier(char c, boolean isDecimal)
Returns true if the specified character is a valid type specifier for a numeric value.
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parseInteger
@Deprecated public static java.lang.Number parseInteger(java.lang.String text)
Deprecated.Builds a Number from the given integer descriptor. Creates the narrowest type possible, or a specific type, if specified.- Parameters:
text
- literal text to parse- Returns:
- instantiated Number object
- Throws:
java.lang.NumberFormatException
- if the number does not fit within the type requested by the type specifier suffix (invalid numbers don't make it here)
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parseInteger
public static java.lang.Number parseInteger(antlr.collections.AST reportNode, java.lang.String text)
Builds a Number from the given integer descriptor. Creates the narrowest type possible, or a specific type, if specified.- Parameters:
reportNode
- at node for error reporting in the parsertext
- literal text to parse- Returns:
- instantiated Number object
- Throws:
java.lang.NumberFormatException
- if the number does not fit within the type requested by the type specifier suffix (invalid numbers don't make it here)
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parseDecimal
public static java.lang.Number parseDecimal(java.lang.String text)
Builds a Number from the given decimal descriptor. Uses BigDecimal, unless, Double or Float is requested.- Parameters:
text
- literal text to parse- Returns:
- instantiated Number object
- Throws:
java.lang.NumberFormatException
- if the number does not fit within the type requested by the type specifier suffix (invalid numbers don't make it here)
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