diff options
Diffstat (limited to 'dice-lang/src/bjc/dicelang/DoubleMatcher.java')
| -rw-r--r-- | dice-lang/src/bjc/dicelang/DoubleMatcher.java | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/dice-lang/src/bjc/dicelang/DoubleMatcher.java b/dice-lang/src/bjc/dicelang/DoubleMatcher.java deleted file mode 100644 index 75df9c7..0000000 --- a/dice-lang/src/bjc/dicelang/DoubleMatcher.java +++ /dev/null @@ -1,58 +0,0 @@ -package bjc.dicelang; - -import java.util.regex.Pattern; - -/** - * Checks if a string would pass Double.parseDouble. - * - * Uses a regex from the javadoc for Double.valueOf() - */ -public class DoubleMatcher { - private static final String Digits = - "(\\p{Digit}+)"; - private static final String HexDigits = - "(\\p{XDigit}+)"; - - // an exponent is 'e' or 'E' followed by an optionally - // signed decimal integer. - private static final String Exp = - "[eE][+-]?" + Digits; - - private static final String fpRegex = - ("[\\x00-\\x20]*" + - // Optional leading "whitespace" - "[+-]?(" + // Optional sign character - "NaN|" + // "NaN" string - "Infinity|" + // "Infinity" string - - // A decimal floating-point string representing a finite positive - // number without a leading sign has at most five basic pieces: - // Digits . Digits ExponentPart FloatTypeSuffix - // - // Since this method allows integer-only strings as input - // in addition to strings of floating-point literals, the - // two sub-patterns below are simplifications of the grammar - // productions from section 3.10.2 of - // The Java™ Language Specification. - - // Digits ._opt Digits_opt ExponentPart_opt FloatTypeSuffix_opt - "((("+Digits+"(\\.)?("+Digits+"?)("+Exp+")?)|"+ - - // . Digits ExponentPart_opt FloatTypeSuffix_opt - "(\\.("+Digits+")("+Exp+")?)|"+ - - // Hexadecimal strings - "((" + - // 0[xX] HexDigits ._opt BinaryExponent FloatTypeSuffix_opt - "(0[xX]" + HexDigits + "(\\.)?)|" + - - // 0[xX] HexDigits_opt . HexDigits BinaryExponent FloatTypeSuffix_opt - "(0[xX]" + HexDigits + "?(\\.)" + HexDigits + ")" + - - ")[pP][+-]?" + Digits + "))" + - "[fFdD]?))" + - "[\\x00-\\x20]*");// Optional trailing "whitespace" - - public static final Pattern floatingLiteral = Pattern.compile("\\A" + fpRegex + "\\Z"); - -} |
