Package: org.codehaus.groovy.runtime

## [Java] Class StringGroovyMethods

- org.codehaus.groovy.runtime.StringGroovyMethods

- This class defines new groovy methods which appear on String-related JDK classes (String, CharSequence, Matcher) inside the Groovy environment. Static methods are used with the first parameter being the destination class, e.g. `public static String reverse(String self)` provides a `reverse()` method for `String`.

  NOTE: While this class contains many 'public' static methods, it is primarily regarded as an internal class (its internal package name suggests this also). We value backwards compatibility of these methods when used within Groovy but value less backwards compatibility at the Java method call level. I.e. future versions of Groovy may remove or move a method call in this file but would normally aim to keep the method available from within Groovy.

- - ### Methods Summary

    Methods
    Type Params | Return Type | Name and description
    --- | --- | ---
    `` | `static boolean` | `asBoolean(CharSequence string)` Coerce a string (an instance of CharSequence) to a boolean value.
    `` | `static boolean` | `asBoolean(Matcher matcher)` Coerce a Matcher instance to a boolean value.
    `<T>` | `static T` | `asType(CharSequence self, Class<T> c)`
    `<T>` | `static T` | `asType(GString self, Class<T> c)` Converts the GString to a File, or delegates to the default DefaultGroovyMethods.asType
    `<T>` | `static T` | `asType(String self, Class<T> c)` Provides a method to perform custom 'dynamic' type conversion to the given class using the `as` operator.
    `` | `static Pattern` | `bitwiseNegate(CharSequence self)` Turns a CharSequence into a regular expression Pattern
    `` | `static Pattern` | `bitwiseNegate(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `capitalize(CharSequence self)` Convenience method to capitalize the first letter of a CharSequence (typically the first letter of a word).
    `` | `static String` | `capitalize(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `center(CharSequence self, Number numberOfChars)` Pad a CharSequence to a minimum length specified by `numberOfChars` by adding the space character around it as many times as needed so that it remains centered.
    `` | `static String` | `center(CharSequence self, Number numberOfChars, CharSequence padding)` Pad a CharSequence to a minimum length specified by `numberOfChars`, appending the supplied padding CharSequence around the original as many times as needed keeping it centered.
    `` | `static String` | `center(String self, Number numberOfChars)` @deprecated Use the CharSequence version
    `` | `static String` | `center(String self, Number numberOfChars, String padding)` @deprecated Use the CharSequence version
    `` | `static String` | `collectReplacements(String orig, Closure<String> transform)` Iterate through this String a character at a time collecting either the original character or a transformed replacement String.
    `` | `static boolean` | `contains(CharSequence self, CharSequence text)` Provide an implementation of contains() like Collection.contains to make CharSequences more polymorphic.
    `` | `static boolean` | `contains(String self, String text)` @deprecated Use the CharSequence version
    `` | `static int` | `count(CharSequence self, CharSequence text)` Count the number of occurrences of a sub CharSequence.
    `` | `static int` | `count(String self, String text)` @deprecated Use the CharSequence version
    `` | `static String` | `denormalize(CharSequence self)` Return a CharSequence with lines (separated by LF, CR/LF, or CR) terminated by the platform specific line separator.
    `` | `static String` | `denormalize(String self)` @deprecated Use the CharSequence version
    `` | `static CharSequence` | `drop(CharSequence self, int num)` Drops the given number of chars from the head of this CharSequence if they are available.
    `` | `static String` | `drop(GString self, int num)` A GString variant of the equivalent CharSequence method.
    `` | `static CharSequence` | `dropWhile(CharSequence self, Closure condition)` Create a suffix of the given CharSequence by dropping as many characters as possible from the front of the original CharSequence such that calling the given closure condition evaluates to true when passed each of the dropped characters.
    `` | `static String` | `dropWhile(GString self, Closure condition)` A GString variant of the equivalent CharSequence method.
    `<T>` | `static T` | `eachLine(CharSequence self, Closure<T> closure)` Iterates through this CharSequence line by line.
    `<T>` | `static T` | `eachLine(CharSequence self, int firstLine, Closure<T> closure)` Iterates through this CharSequence line by line.
    `<T>` | `static T` | `eachLine(String self, Closure<T> closure)` @deprecated Use the CharSequence version
    `<T>` | `static T` | `eachLine(String self, int firstLine, Closure<T> closure)` @deprecated Use the CharSequence version
    `<T extends CharSequence>` | `static T` | `eachMatch(T self, CharSequence regex, Closure closure)` Process each regex group matched substring of the given CharSequence.
    `<T extends CharSequence>` | `static T` | `eachMatch(T self, Pattern pattern, Closure closure)` Process each regex group matched substring of the given pattern.
    `` | `static String` | `eachMatch(String self, Pattern pattern, Closure closure)` Process each regex group matched substring of the given pattern.
    `` | `static String` | `eachMatch(String self, String regex, Closure closure)` Process each regex group matched substring of the given string.
    `` | `static boolean` | `endsWithAny(CharSequence self, CharSequence... suffixes)` Tests if this CharSequence ends with any specified suffixes.
    `` | `static String` | `expand(CharSequence self)` Expands all tabs into spaces with tabStops of size 8.
    `` | `static String` | `expand(CharSequence self, int tabStop)` Expands all tabs into spaces.
    `` | `static String` | `expand(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `expand(String self, int tabStop)` @deprecated Use the CharSequence version
    `` | `static String` | `expandLine(CharSequence self, int tabStop)` Expands all tabs into spaces.
    `` | `static String` | `expandLine(String self, int tabStop)` @deprecated Use the CharSequence version
    `` | `static String` | `find(CharSequence self, CharSequence regex)` Finds the first occurrence of a regular expression String within a String.
    `` | `static String` | `find(CharSequence self, CharSequence regex, Closure closure)` Returns the result of calling a closure with the first occurrence of a regular expression found within a CharSequence.
    `` | `static String` | `find(CharSequence self, Pattern pattern)` Finds the first occurrence of a compiled regular expression Pattern within a String.
    `` | `static String` | `find(CharSequence self, Pattern pattern, Closure closure)` Returns the result of calling a closure with the first occurrence of a compiled regular expression found within a String.
    `` | `static String` | `find(String self, Pattern pattern)` @deprecated Use the CharSequence version
    `` | `static String` | `find(String self, Pattern pattern, Closure closure)` @deprecated Use the CharSequence version
    `` | `static String` | `find(String self, String regex)` @deprecated Use the CharSequence version
    `` | `static String` | `find(String self, String regex, Closure closure)` @deprecated Use the CharSequence version
    `` | `static List<String>` | `findAll(CharSequence self, CharSequence regex)` Returns a (possibly empty) list of all occurrences of a regular expression (provided as a CharSequence) found within a CharSequence.
    `<T>` | `static List<T>` | `findAll(CharSequence self, CharSequence regex, Closure<T> closure)` Finds all occurrences of a regular expression string within a CharSequence.
    `` | `static List<String>` | `findAll(CharSequence self, Pattern pattern)` Returns a (possibly empty) list of all occurrences of a regular expression (in Pattern format) found within a CharSequence.
    `<T>` | `static List<T>` | `findAll(CharSequence self, Pattern pattern, Closure<T> closure)` Finds all occurrences of a compiled regular expression Pattern within a CharSequence.
    `` | `static List<String>` | `findAll(String self, Pattern pattern)` @deprecated Use the CharSequence version
    `<T>` | `static List<T>` | `findAll(String self, Pattern pattern, Closure<T> closure)` @deprecated Use the CharSequence version
    `` | `static List<String>` | `findAll(String self, String regex)` @deprecated Use the CharSequence version
    `<T>` | `static List<T>` | `findAll(String self, String regex, Closure<T> closure)` @deprecated Use the CharSequence version
    `` | `static String` | `getAt(CharSequence self, Collection indices)` Select a List of characters from a CharSequence using a Collection to identify the indices to be selected.
    `` | `static String` | `getAt(CharSequence text, EmptyRange range)` Support the range subscript operator for CharSequence or StringBuffer with EmptyRange
    `` | `static CharSequence` | `getAt(CharSequence text, int index)` Support the subscript operator for CharSequence.
    `` | `static String` | `getAt(GString text, int index)` Support the subscript operator for GString.
    `` | `static CharSequence` | `getAt(CharSequence text, IntRange range)` Support the range subscript operator for CharSequence with IntRange
    `` | `static String` | `getAt(GString text, IntRange range)` Support the range subscript operator for GString with IntRange
    `` | `static CharSequence` | `getAt(CharSequence text, Range range)` Support the range subscript operator for CharSequence
    `` | `static String` | `getAt(GString text, Range range)` Support the range subscript operator for GString
    `` | `static List` | `getAt(Matcher self, Collection indices)` Select a List of values from a Matcher using a Collection to identify the indices to be selected.
    `` | `static Object` | `getAt(Matcher matcher, int idx)` Support the subscript operator, e.g. matcher[index], for a regex Matcher.
    `` | `static String` | `getAt(String self, Collection indices)` @deprecated Use the CharSequence version
    `` | `static String` | `getAt(String text, EmptyRange range)` @deprecated Use the CharSequence version
    `` | `static String` | `getAt(String text, int index)` Support the subscript operator for String.
    `` | `static String` | `getAt(String text, IntRange range)` Support the range subscript operator for String with IntRange
    `` | `static String` | `getAt(String text, Range range)` Support the range subscript operator for String
    `` | `static char[]` | `getChars(CharSequence self)` Converts the given CharSequence into an array of characters.
    `` | `static char[]` | `getChars(String self)` @deprecated Use the CharSequence version
    `` | `static int` | `getCount(Matcher matcher)` Find the number of Strings matched to the given Matcher.
    `` | `static boolean` | `hasGroup(Matcher matcher)` Check whether a Matcher contains a group or not.
    `` | `static boolean` | `isAllWhitespace(CharSequence self)` True if a CharSequence only contains whitespace characters.
    `` | `static boolean` | `isAllWhitespace(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isBigDecimal(CharSequence self)` Determine if a CharSequence can be parsed as a BigDecimal.
    `` | `static boolean` | `isBigDecimal(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isBigInteger(CharSequence self)` Determine if a CharSequence can be parsed as a BigInteger.
    `` | `static boolean` | `isBigInteger(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isCase(CharSequence caseValue, Object switchValue)` 'Case' implementation for a CharSequence, which uses equals between the toString() of the caseValue and the switchValue.
    `` | `static boolean` | `isCase(GString caseValue, Object switchValue)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isCase(Pattern caseValue, Object switchValue)` 'Case' implementation for the Pattern class, which allows testing a String against a number of regular expressions.
    `` | `static boolean` | `isCase(String caseValue, Object switchValue)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isDouble(CharSequence self)` Determine if a CharSequence can be parsed as a Double.
    `` | `static boolean` | `isDouble(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isFloat(CharSequence self)` Determine if a CharSequence can be parsed as a Float.
    `` | `static boolean` | `isFloat(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isInteger(CharSequence self)` Determine if a CharSequence can be parsed as an Integer.
    `` | `static boolean` | `isInteger(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isLong(CharSequence self)` Determine if a CharSequence can be parsed as a Long.
    `` | `static boolean` | `isLong(String self)` @deprecated Use the CharSequence version
    `` | `static boolean` | `isNumber(CharSequence self)` Determine if a CharSequence can be parsed as a Number.
    `` | `static boolean` | `isNumber(String self)` @deprecated Use the CharSequence version
    `` | `static Iterator` | `iterator(Matcher matcher)` Returns an Iterator which traverses each match.
    `` | `static StringBuilder` | `leftShift(CharSequence self, Object value)` Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a CharSequence.
    `` | `static StringBuffer` | `leftShift(String self, Object value)` Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a String.
    `` | `static StringBuffer` | `leftShift(StringBuffer self, Object value)` Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a StringBuffer.
    `` | `static StringBuilder` | `leftShift(StringBuilder self, Object value)` Overloads the left shift operator to provide syntactic sugar for appending to a StringBuilder.
    `` | `static boolean` | `matches(CharSequence self, Pattern pattern)` Tells whether or not a CharSequence matches the given compiled regular expression Pattern.
    `` | `static boolean` | `matches(String self, Pattern pattern)` @deprecated Use the CharSequence version
    `` | `static boolean` | `matchesPartially(Matcher matcher)` Given a matcher that matches a string against a pattern, this method returns true when the string matches the pattern or if a longer string, could match the pattern.
    `` | `static String` | `minus(CharSequence self, Object target)` Remove a part of a CharSequence by replacing the first occurrence of target within self with '' and returns the result.
    `` | `static String` | `minus(CharSequence self, Pattern pattern)` Remove a part of a CharSequence.
    `` | `static String` | `minus(String self, Pattern pattern)` @deprecated Use the CharSequence version
    `` | `static String` | `minus(String self, Object target)` @deprecated Use the CharSequence version
    `` | `static String` | `multiply(CharSequence self, Number factor)` Repeat a CharSequence a certain number of times.
    `` | `static String` | `multiply(String self, Number factor)` @deprecated Use the CharSequence version
    `` | `static String` | `next(CharSequence self)` This method is called by the ++ operator for the class CharSequence.
    `` | `static String` | `next(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `normalize(CharSequence self)` Return a String with linefeeds and carriage returns normalized to linefeeds.
    `` | `static String` | `normalize(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `padLeft(CharSequence self, Number numberOfChars)` Pad a CharSequence to a minimum length specified by `numberOfChars` by adding the space character to the left as many times as needed.
    `` | `static String` | `padLeft(CharSequence self, Number numberOfChars, CharSequence padding)` Pad a CharSequence to a minimum length specified by `numberOfChars`, adding the supplied padding CharSequence as many times as needed to the left.
    `` | `static String` | `padLeft(String self, Number numberOfChars)` @deprecated Use the CharSequence version
    `` | `static String` | `padLeft(String self, Number numberOfChars, String padding)` @deprecated Use the CharSequence version
    `` | `static String` | `padRight(CharSequence self, Number numberOfChars)` Pad a CharSequence to a minimum length specified by `numberOfChars` by adding the space character to the right as many times as needed.
    `` | `static String` | `padRight(CharSequence self, Number numberOfChars, CharSequence padding)` Pad a CharSequence to a minimum length specified by `numberOfChars`, adding the supplied padding CharSequence as many times as needed to the right.
    `` | `static String` | `padRight(String self, Number numberOfChars)` @deprecated Use the CharSequence version
    `` | `static String` | `padRight(String self, Number numberOfChars, String padding)` @deprecated Use the CharSequence version
    `` | `static String` | `plus(CharSequence left, Object value)` Appends the String representation of the given operand to this CharSequence.
    `` | `static String` | `plus(Number value, String right)` Appends a String to the string representation of this number.
    `` | `static String` | `plus(String left, Object value)` @deprecated Use the CharSequence version
    `` | `static String` | `plus(String left, CharSequence value)` Appends the String representation of the given operand to this string.
    `` | `static String` | `plus(StringBuffer left, String value)` Appends a String to this StringBuffer.
    `` | `static String` | `previous(CharSequence self)` This method is called by the -- operator for the class CharSequence.
    `` | `static String` | `previous(String self)` @deprecated Use the CharSequence version
    `` | `static void` | `putAt(StringBuffer self, EmptyRange range, Object value)` Support the range subscript operator for StringBuffer.
    `` | `static void` | `putAt(StringBuffer self, IntRange range, Object value)` Support the range subscript operator for StringBuffer.
    `` | `static List<String>` | `readLines(CharSequence self)` Return the lines of a CharSequence as a List of String.
    `` | `static List<String>` | `readLines(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `replaceAll(CharSequence self, CharSequence regex, CharSequence replacement)` Replaces each substring of this CharSequence that matches the given regular expression with the given replacement.
    `` | `static String` | `replaceAll(CharSequence self, CharSequence regex, Closure closure)` Replaces all occurrences of a captured group by the result of calling a closure on that text.
    `` | `static String` | `replaceAll(CharSequence self, Pattern pattern, CharSequence replacement)` Replaces all substrings of a CharSequence that match the given compiled regular expression with the given replacement.
    `` | `static String` | `replaceAll(CharSequence self, Pattern pattern, Closure closure)` Replaces all occurrences of a captured group by the result of a closure call on that text.
    `` | `static String` | `replaceAll(String self, Pattern pattern, Closure closure)` @deprecated Use the CharSequence version
    `` | `static String` | `replaceAll(String self, Pattern pattern, String replacement)` @deprecated Use the CharSequence version
    `` | `static String` | `replaceAll(String self, String regex, Closure closure)` @deprecated Use the CharSequence version
    `` | `static String` | `replaceFirst(CharSequence self, CharSequence regex, CharSequence replacement)` Replaces the first substring of this CharSequence that matches the given regular expression with the given replacement.
    `` | `static String` | `replaceFirst(CharSequence self, CharSequence regex, Closure closure)` Replaces the first occurrence of a captured group by the result of a closure call on that text.
    `` | `static String` | `replaceFirst(CharSequence self, Pattern pattern, CharSequence replacement)` Replaces the first substring of a CharSequence that matches the given compiled regular expression with the given replacement.
    `` | `static String` | `replaceFirst(CharSequence self, Pattern pattern, Closure closure)` Replaces the first occurrence of a captured group by the result of a closure call on that text.
    `` | `static String` | `replaceFirst(String self, Pattern pattern, Closure closure)` @deprecated Use the CharSequence version
    `` | `static String` | `replaceFirst(String self, Pattern pattern, String replacement)` @deprecated Use the CharSequence version
    `` | `static String` | `replaceFirst(String self, String regex, Closure closure)` @deprecated Use the CharSequence version
    `` | `static String` | `reverse(CharSequence self)` Creates a String which is the reverse (backwards) of this CharSequence
    `` | `static String` | `reverse(String self)` @deprecated Use the CharSequence version
    `` | `static void` | `setIndex(Matcher matcher, int idx)` Set the position of the given Matcher to the given index.
    `` | `static int` | `size(CharSequence text)` Provide the standard Groovy `size()` method for `CharSequence`.
    `` | `static long` | `size(Matcher self)` Provide the standard Groovy `size()` method for `Matcher`.
    `` | `static int` | `size(String text)` Provide the standard Groovy `size()` method for `String`.
    `` | `static int` | `size(StringBuffer buffer)` Provide the standard Groovy `size()` method for `StringBuffer`.
    `` | `static String[]` | `split(CharSequence self)` Convenience method to split a CharSequence (with whitespace as delimiter).
    `` | `static String[]` | `split(GString self)` @deprecated Use the CharSequence version
    `` | `static String[]` | `split(String self)` @deprecated Use the CharSequence version
    `<T>` | `static T` | `splitEachLine(CharSequence self, CharSequence regex, Closure<T> closure)` Iterates through the given CharSequence line by line, splitting each line using the given regex delimiter.
    `<T>` | `static T` | `splitEachLine(CharSequence self, Pattern pattern, Closure<T> closure)` Iterates through the given CharSequence line by line, splitting each line using the given separator Pattern.
    `<T>` | `static T` | `splitEachLine(String self, Pattern pattern, Closure<T> closure)` @deprecated Use the CharSequence version
    `<T>` | `static T` | `splitEachLine(String self, String regex, Closure<T> closure)` @deprecated Use the CharSequence version
    `` | `static boolean` | `startsWithAny(CharSequence self, CharSequence... prefixes)` Tests if this CharSequence starts with any specified prefixes.
    `` | `static String` | `stripIndent(CharSequence self)` Strip leading spaces from every line in a CharSequence.
    `` | `static String` | `stripIndent(CharSequence self, int numChars)` Strip `numChar` leading characters from every line in a CharSequence.
    `` | `static String` | `stripIndent(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `stripIndent(String self, int numChars)` @deprecated Use the CharSequence version
    `` | `static String` | `stripMargin(CharSequence self)` Strip leading whitespace/control characters followed by '|' from every line in a CharSequence.
    `` | `static String` | `stripMargin(CharSequence self, char marginChar)` Strip leading whitespace/control characters followed by `marginChar` from every line in a CharSequence.
    `` | `static String` | `stripMargin(CharSequence self, CharSequence marginChar)` Strip leading whitespace/control characters followed by `marginChar` from every line in a CharSequence.
    `` | `static String` | `stripMargin(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `stripMargin(String self, char marginChar)` @deprecated Use the CharSequence version
    `` | `static String` | `stripMargin(String self, String marginChar)` @deprecated Use the CharSequence version
    `` | `static CharSequence` | `take(CharSequence self, int num)` Returns the first `num` elements from this CharSequence.
    `` | `static String` | `take(GString self, int num)` A GString variant of the equivalent CharSequence method.
    `` | `static CharSequence` | `takeWhile(CharSequence self, Closure condition)` Returns the longest prefix of this CharSequence where each element passed to the given closure evaluates to true.
    `` | `static String` | `takeWhile(GString self, Closure condition)` A GString variant of the equivalent GString method.
    `` | `static BigDecimal` | `toBigDecimal(CharSequence self)` Parse a CharSequence into a BigDecimal
    `` | `static BigDecimal` | `toBigDecimal(String self)` @deprecated Use the CharSequence version
    `` | `static BigInteger` | `toBigInteger(CharSequence self)` Parse a CharSequence into a BigInteger
    `` | `static BigInteger` | `toBigInteger(String self)` @deprecated Use the CharSequence version
    `` | `static Boolean` | `toBoolean(String self)` Converts the given string into a Boolean object.
    `` | `static Character` | `toCharacter(String self)` Converts the given string into a Character object using the first character in the string.
    `` | `static Double` | `toDouble(CharSequence self)` Parse a CharSequence into a Double
    `` | `static Double` | `toDouble(String self)` @deprecated Use the CharSequence version
    `` | `static Float` | `toFloat(CharSequence self)` Parse a CharSequence into a Float
    `` | `static Float` | `toFloat(String self)` @deprecated Use the CharSequence version
    `` | `static Integer` | `toInteger(CharSequence self)` Parse a CharSequence into an Integer
    `` | `static Integer` | `toInteger(String self)` @deprecated Use the CharSequence version
    `` | `static List<String>` | `toList(CharSequence self)` Converts the given CharSequence into a List of Strings of one character.
    `` | `static List<String>` | `toList(String self)` @deprecated Use the CharSequence version
    `` | `static Long` | `toLong(CharSequence self)` Parse a CharSequence into a Long
    `` | `static Long` | `toLong(String self)` @deprecated Use the CharSequence version
    `` | `static Set<String>` | `toSet(CharSequence self)` Converts the given CharSequence into a Set of unique Strings of one character.
    `` | `static Set<String>` | `toSet(String self)` @deprecated Use the CharSequence version
    `` | `static Short` | `toShort(CharSequence self)` Parse a CharSequence into a Short
    `` | `static Short` | `toShort(String self)` @deprecated Use the CharSequence version
    `` | `static List<String>` | `tokenize(CharSequence self)` Tokenize a CharSequence (with a whitespace as the delimiter).
    `` | `static List<String>` | `tokenize(CharSequence self, Character delimiter)` Tokenize a CharSequence based on the given character delimiter.
    `` | `static List<String>` | `tokenize(CharSequence self, CharSequence delimiters)` Tokenize a CharSequence based on the given CharSequence.
    `` | `static List<String>` | `tokenize(String self)` @deprecated Use the CharSequence version
    `` | `static List<String>` | `tokenize(String self, Character delimiter)` @deprecated Use the CharSequence version
    `` | `static List<String>` | `tokenize(String self, String delimiters)` @deprecated Use the CharSequence version
    `` | `static String` | `tr(CharSequence self, CharSequence sourceSet, CharSequence replacementSet)` Translates a CharSequence by replacing characters from the sourceSet with characters from replacementSet.
    `` | `static String` | `tr(String self, String sourceSet, String replacementSet)` @deprecated Use the CharSequence version
    `` | `static String` | `uncapitalize(CharSequence self)` Convenience method to uncapitalize the first letter of a CharSequence (typically the first letter of a word).
    `` | `static String` | `unexpand(CharSequence self)` Replaces sequences of whitespaces with tabs using tabStops of size 8.
    `` | `static String` | `unexpand(CharSequence self, int tabStop)` Replaces sequences of whitespaces with tabs.
    `` | `static String` | `unexpand(String self)` @deprecated Use the CharSequence version
    `` | `static String` | `unexpand(String self, int tabStop)` @deprecated Use the CharSequence version
    `` | `static String` | `unexpandLine(CharSequence self, int tabStop)` Replaces sequences of whitespaces with tabs within a line.
    `` | `static String` | `unexpandLine(String self, int tabStop)` @deprecated Use the CharSequence version

  - ### Inherited Methods Summary

    Inherited Methods
    Methods inherited from class | Name
    --- | ---
    `class DefaultGroovyMethodsSupport` | `cloneSimilarCollection, cloneSimilarMap, closeQuietly, closeWithWarning, createSimilarArray, createSimilarCollection, createSimilarCollection, createSimilarCollection, createSimilarList, createSimilarMap, createSimilarOrDefaultCollection, createSimilarSet, normaliseIndex, sameType, subListBorders, subListBorders`
    `class Object` | `wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll`

- - ### Method Detail

    - #### public static boolean asBoolean(CharSequence string)

      Coerce a string (an instance of CharSequence) to a boolean value. A string is coerced to false if it is of length 0, and to true otherwise.

      Parameters:
        `string` - the character sequence
      Returns:
        the boolean value
      Since:
        1.7.0

    - #### public static boolean asBoolean(Matcher matcher)

      Coerce a Matcher instance to a boolean value.

      Parameters:
        `matcher` - the matcher
      Returns:
        the boolean value
      Since:
        1.7.0

    - #### <T> public static T asType(CharSequence self, Class<T> c)

      Provides a method to perform custom 'dynamic' type conversion to the given class using the `as` operator.

      Parameters:
        `self` - a CharSequence
        `c` - the desired class
      Returns:
        the converted object
      See Also:
        asType(String, Class)
      Since:
        1.8.2

    - #### <T> @SuppressWarnings("unchecked") public static T asType(GString self, Class<T> c)

      Converts the GString to a File, or delegates to the default DefaultGroovyMethods.asType

      Parameters:
        `self` - a GString
        `c` - the desired class
      Returns:
        the converted object
      Since:
        1.5.0

    - #### <T> @SuppressWarnings("unchecked") public static T asType(String self, Class<T> c)

      Provides a method to perform custom 'dynamic' type conversion to the given class using the `as` operator. Example: `'123' as Double`

      By default, the following types are supported:

      - List
      - BigDecimal
      - BigInteger
      - Long
      - Integer
      - Short
      - Byte
      - Character
      - Double
      - Float
      - File
      - Subclasses of Enum
      If any other type is given, the call is delegated to DefaultGroovyMethods.asType.
      Parameters:
        `self` - a String
        `c` - the desired class
      Returns:
        the converted object
      Since:
        1.0

    - #### public static Pattern bitwiseNegate(CharSequence self)

      Turns a CharSequence into a regular expression Pattern

      Parameters:
        `self` - a String to convert into a regular expression
      Returns:
        the regular expression pattern
      Since:
        1.8.2

    - #### @Deprecated public static Pattern bitwiseNegate(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        bitwiseNegate(CharSequence)

    - #### public static String capitalize(CharSequence self)

      Convenience method to capitalize the first letter of a CharSequence (typically the first letter of a word). Example usage:

           assert 'h'.capitalize() == 'H'
           assert 'hello'.capitalize() == 'Hello'
           assert 'hello world'.capitalize() == 'Hello world'
           assert 'Hello World' ==
               'hello world'.split(' ').collect{ it.capitalize() }.join(' ')

      Parameters:
        `self` - The CharSequence to capitalize
      Returns:
        A String containing the capitalized toString() of the CharSequence
      See Also:
        capitalize(String)
      Since:
        1.8.2

    - #### @Deprecated public static String capitalize(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        capitalize(CharSequence)

    - #### public static String center(CharSequence self, Number numberOfChars)

      Pad a CharSequence to a minimum length specified by `numberOfChars` by adding the space character around it as many times as needed so that it remains centered. If the String is already the same size or bigger than the target `numberOfChars`, then the original String is returned. An example:

           ['A', 'BB', 'CCC', 'DDDD'].each{ println '|' + it.center(6) + '|' }

      will produce output like:

           |  A   |
           |  BB  |
           | CCC  |
           | DDDD |

      Parameters:
        `self` - a CharSequence object
        `numberOfChars` - the total minimum number of characters of the result
      Returns:
        the centered toString() of this CharSequence with padded characters around it
      See Also:
        center(String, Number)
      Since:
        1.8.2

    - #### public static String center(CharSequence self, Number numberOfChars, CharSequence padding)

      Pad a CharSequence to a minimum length specified by `numberOfChars`, appending the supplied padding CharSequence around the original as many times as needed keeping it centered. If the String is already the same size or bigger than the target `numberOfChars`, then the original String is returned. An example:

           ['A', 'BB', 'CCC', 'DDDD'].each{ println '|' + it.center(6, '+') + '|' }

      will produce output like:

           |++A+++|
           |++BB++|
           |+CCC++|
           |+DDDD+|

      Parameters:
        `self` - a CharSequence object
        `numberOfChars` - the total minimum number of characters of the resulting CharSequence
        `padding` - the characters used for padding
      Returns:
        the centered toString() of this CharSequence with padded characters around it
      See Also:
        center(String, Number, String)
      Since:
        1.8.2

    - #### @Deprecated public static String center(String self, Number numberOfChars)

      deprecated:
        Use the CharSequence version
      See Also:
        center(CharSequence, Number)

    - #### @Deprecated public static String center(String self, Number numberOfChars, String padding)

      deprecated:
        Use the CharSequence version
      See Also:
        center(CharSequence, Number, CharSequence)

    - #### public static String collectReplacements(String orig, @ClosureParams(value=SimpleType.class, options="char") Closure<String> transform)

      Iterate through this String a character at a time collecting either the original character or a transformed replacement String. The `transform` Closure should return `null` to indicate that no transformation is required for the given character.

           assert "Groovy".collectReplacements{ it == 'o' ? '_O_' : null } == 'Gr_O__O_vy'
           assert "B&W".collectReplacements{ it == '&' ? '&' : null } == 'B&W'

      Parameters:
        `orig` - the original String
      Returns:
        A new string in which all characters that require escaping have been replaced with the corresponding replacements as determined by the `transform` Closure.

    - #### public static boolean contains(CharSequence self, CharSequence text)

      Provide an implementation of contains() like Collection.contains to make CharSequences more polymorphic.

      Parameters:
        `self` - a CharSequence
        `text` - the CharSequence to look for
      Returns:
        true if this CharSequence contains the given text
      See Also:
        contains(String, String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean contains(String self, String text)

      deprecated:
        Use the CharSequence version
      See Also:
        contains(CharSequence, CharSequence)

    - #### public static int count(CharSequence self, CharSequence text)

      Count the number of occurrences of a sub CharSequence.

      Parameters:
        `self` - a CharSequence
        `text` - a sub CharSequence
      Returns:
        the number of occurrences of the given CharSequence inside this CharSequence
      See Also:
        count(String, String)
      Since:
        1.8.2

    - #### @Deprecated public static int count(String self, String text)

      deprecated:
        Use the CharSequence version
      See Also:
        contains(CharSequence, CharSequence)

    - #### public static String denormalize(CharSequence self)

      Return a CharSequence with lines (separated by LF, CR/LF, or CR) terminated by the platform specific line separator.

      Parameters:
        `self` - a CharSequence object
      Returns:
        the denormalized toString() of this CharSequence
      See Also:
        denormalize(String)
      Since:
        1.8.2

    - #### @Deprecated public static String denormalize(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        denormalize(CharSequence)

    - #### public static CharSequence drop(CharSequence self, int num)

      Drops the given number of chars from the head of this CharSequence if they are available.

               def text = "Groovy"
               assert text.drop( 0 ) == 'Groovy'
               assert text.drop( 2 ) == 'oovy'
               assert text.drop( 7 ) == ''

      Parameters:
        `self` - the original CharSequence
        `num` - the number of characters to drop from this iterator
      Returns:
        a CharSequence consisting of all characters except the first `num` ones, or else an empty String, if this CharSequence has less than `num` characters.
      Since:
        1.8.1

    - #### public static String drop(GString self, int num)

      A GString variant of the equivalent CharSequence method.

      Parameters:
        `self` - the original GString
        `num` - the number of characters to drop from this iterator
      Returns:
        a String consisting of all characters except the first `num` ones, or else an empty String, if the toString() of this GString has less than `num` characters.
      See Also:
        drop(CharSequence, int)
      Since:
        2.3.7

    - #### public static CharSequence dropWhile(CharSequence self, @ClosureParams(value=SimpleType.class, options="char") Closure condition)

      Create a suffix of the given CharSequence by dropping as many characters as possible from the front of the original CharSequence such that calling the given closure condition evaluates to true when passed each of the dropped characters.

           def text = "Groovy"
           assert text.dropWhile{ false } == 'Groovy'
           assert text.dropWhile{ true } == ''
           assert text.dropWhile{ it < 'Z' } == 'roovy'
           assert text.dropWhile{ it != 'v' } == 'vy'

      Parameters:
        `self` - the original CharSequence
        `condition` - the closure that while continuously evaluating to true will cause us to drop elements from the front of the original CharSequence
      Returns:
        the shortest suffix of the given CharSequence such that the given closure condition evaluates to true for each element dropped from the front of the CharSequence
      Since:
        2.0.0

    - #### public static String dropWhile(GString self, @ClosureParams(value=SimpleType.class, options="char") Closure condition)

      A GString variant of the equivalent CharSequence method.

      Parameters:
        `self` - the original GString
        `condition` - the closure that while continuously evaluating to true will cause us to drop elements from the front of the original GString
      Returns:
        the shortest suffix of the given GString such that the given closure condition evaluates to true for each element dropped from the front of the CharSequence
      See Also:
        dropWhile(CharSequence, groovy.lang.Closure)
      Since:
        2.3.7

    - #### <T> public static T eachLine(CharSequence self, @ClosureParams(value=FromString.class, options={"String","String,Integer"}) Closure<T> closure)

      Iterates through this CharSequence line by line. Each line is passed to the given 1 or 2 arg closure. If a 2 arg closure is found the line count is passed as the second argument.

      throws:
        java.io.IOException if an error occurs
      Parameters:
        `self` - a CharSequence
        `closure` - a closure
      Returns:
        the last value returned by the closure
      See Also:
        eachLine(String, groovy.lang.Closure)
      Since:
        1.8.2

    - #### <T> public static T eachLine(CharSequence self, int firstLine, @ClosureParams(value=FromString.class, options={"String","String,Integer"}) Closure<T> closure)

      Iterates through this CharSequence line by line. Each line is passed to the given 1 or 2 arg closure. If a 2 arg closure is found the line count is passed as the second argument.

      throws:
        java.io.IOException if an error occurs
      Parameters:
        `self` - a CharSequence
        `firstLine` - the line number value used for the first line (default is 1, set to 0 to start counting from 0)
        `closure` - a closure (arg 1 is line, optional arg 2 is line number)
      Returns:
        the last value returned by the closure
      Since:
        1.8.2

    - #### <T> @Deprecated public static T eachLine(String self, @ClosureParams(value=FromString.class, options={"String","String,Integer"}) Closure<T> closure)

      deprecated:
        Use the CharSequence version
      See Also:
        eachLine(CharSequence, groovy.lang.Closure)

    - #### <T> @Deprecated public static T eachLine(String self, int firstLine, @ClosureParams(value=FromString.class, options={"String","String,Integer"}) Closure<T> closure)

      deprecated:
        Use the CharSequence version
      See Also:
        eachLine(CharSequence, int, groovy.lang.Closure)

    - #### <T extends CharSequence> public static T eachMatch(T self, CharSequence regex, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Process each regex group matched substring of the given CharSequence. If the closure parameter takes one argument, an array with all match groups is passed to it. If the closure takes as many arguments as there are match groups, then each parameter will be one match group.

      Parameters:
        `self` - the source CharSequence
        `regex` - a Regex CharSequence
        `closure` - a closure with one parameter or as much parameters as groups
      Returns:
        the source CharSequence
      See Also:
        eachMatch(String, String, groovy.lang.Closure)
      Since:
        1.8.2

    - #### <T extends CharSequence> public static T eachMatch(T self, Pattern pattern, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Process each regex group matched substring of the given pattern. If the closure parameter takes one argument, an array with all match groups is passed to it. If the closure takes as many arguments as there are match groups, then each parameter will be one match group.

      Parameters:
        `self` - the source CharSequence
        `pattern` - a regex Pattern
        `closure` - a closure with one parameter or as much parameters as groups
      Returns:
        the source CharSequence
      See Also:
        eachMatch(String, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.8.2

    - #### public static String eachMatch(String self, Pattern pattern, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Process each regex group matched substring of the given pattern. If the closure parameter takes one argument, an array with all match groups is passed to it. If the closure takes as many arguments as there are match groups, then each parameter will be one match group.

      Parameters:
        `self` - the source string
        `pattern` - a regex Pattern
        `closure` - a closure with one parameter or as much parameters as groups
      Returns:
        the source string
      Since:
        1.6.1

    - #### public static String eachMatch(String self, String regex, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Process each regex group matched substring of the given string. If the closure parameter takes one argument, an array with all match groups is passed to it. If the closure takes as many arguments as there are match groups, then each parameter will be one match group.

      Parameters:
        `self` - the source string
        `regex` - a Regex string
        `closure` - a closure with one parameter or as much parameters as groups
      Returns:
        the source string
      Since:
        1.6.0

    - #### public static boolean endsWithAny(CharSequence self, CharSequence... suffixes)

      Tests if this CharSequence ends with any specified suffixes.

      Parameters:
        `suffixes` - the suffixes.
      Returns:
        `true` if this CharSequence ends with any specified suffixes
      Since:
        2.4.14

    - #### public static String expand(CharSequence self)

      Expands all tabs into spaces with tabStops of size 8.

      Parameters:
        `self` - A CharSequence to expand
      Returns:
        The expanded toString() of this CharSequence
      See Also:
        expand(String)
      Since:
        1.8.2

    - #### public static String expand(CharSequence self, int tabStop)

      Expands all tabs into spaces. If the CharSequence has multiple lines, expand each line - restarting tab stops at the start of each line.

      Parameters:
        `self` - A CharSequence to expand
        `tabStop` - The number of spaces a tab represents
      Returns:
        The expanded toString() of this CharSequence
      See Also:
        expand(String, int)
      Since:
        1.8.2

    - #### @Deprecated public static String expand(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        expand(CharSequence)

    - #### @Deprecated public static String expand(String self, int tabStop)

      deprecated:
        Use the CharSequence version
      See Also:
        expand(CharSequence, int)

    - #### public static String expandLine(CharSequence self, int tabStop)

      Expands all tabs into spaces. Assumes the CharSequence represents a single line of text.

      Parameters:
        `self` - A line to expand
        `tabStop` - The number of spaces a tab represents
      Returns:
        The expanded toString() of this CharSequence
      See Also:
        expandLine(String, int)
      Since:
        1.8.2

    - #### @Deprecated public static String expandLine(String self, int tabStop)

      deprecated:
        Use the CharSequence version
      See Also:
        expand(CharSequence, int)

    - #### public static String find(CharSequence self, CharSequence regex)

      Finds the first occurrence of a regular expression String within a String. If the regex doesn't match, null will be returned.

      For example, if the regex doesn't match the result is null:

               assert "New York, NY".find(/\d{5}/) == null

      If it does match, we get the matching string back:

                assert "New York, NY 10292-0098".find(/\d{5}/) == "10292"

      If we have capture groups in our expression, we still get back the full match

                assert "New York, NY 10292-0098".find(/(\d{5})-?(\d{4})/) == "10292-0098"

      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex
      Returns:
        a String containing the matched portion, or null if the regex doesn't match
      See Also:
        find(String, java.util.regex.Pattern)
      Since:
        1.8.2

    - #### public static String find(CharSequence self, CharSequence regex, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure closure)

      Returns the result of calling a closure with the first occurrence of a regular expression found within a CharSequence. If the regex doesn't match, the closure will not be called and find will return null.

      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex CharSequence
        `closure` - the closure that will be passed the full match, plus each of the capturing groups (if any)
      Returns:
        a String containing the result of calling the closure (calling toString() if needed), or null if the regex pattern doesn't match
      See Also:
        find(String, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.8.2

    - #### public static String find(CharSequence self, Pattern pattern)

      Finds the first occurrence of a compiled regular expression Pattern within a String. If the pattern doesn't match, null will be returned.

      For example, if the pattern doesn't match the result is null:

               assert "New York, NY".find(~/\d{5}/) == null

      If it does match, we get the matching string back:

                assert "New York, NY 10292-0098".find(~/\d{5}/) == "10292"

      If we have capture groups in our expression, the groups are ignored and we get back the full match:

                assert "New York, NY 10292-0098".find(~/(\d{5})-?(\d{4})/) == "10292-0098"

      If you need to work with capture groups, then use the closure version of this method or use Groovy's matcher operators or use `eachMatch`.
      Parameters:
        `self` - a CharSequence
        `pattern` - the compiled regex Pattern
      Returns:
        a String containing the matched portion, or null if the regex pattern doesn't match
      See Also:
        find(String, java.util.regex.Pattern)
      Since:
        1.8.2

    - #### public static String find(CharSequence self, Pattern pattern, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure closure)

      Returns the result of calling a closure with the first occurrence of a compiled regular expression found within a String. If the regex doesn't match, the closure will not be called and find will return null.

      For example, if the pattern doesn't match, the result is null:

               assert "New York, NY".find(~/\d{5}/) { match -> return "-$match-"} == null

      If it does match and we don't have any capture groups in our regex, there is a single parameter on the closure that the match gets passed to:

                assert "New York, NY 10292-0098".find(~/\d{5}/) { match -> return "-$match-"} == "-10292-"

      If we have capture groups in our expression, our closure has one parameter for the match, followed by one for each of the capture groups:

                assert "New York, NY 10292-0098".find(~/(\d{5})-?(\d{4})/) { match, zip, plusFour ->
                    assert match == "10292-0098"
                    assert zip == "10292"
                    assert plusFour == "0098"
                    return zip
                } == "10292"

      If we have capture groups in our expression, and our closure has one parameter, the closure will be passed an array with the first element corresponding to the whole match, followed by an element for each of the capture groups:

                assert "New York, NY 10292-0098".find(~/(\d{5})-?(\d{4})/) { array ->
                    assert array[0] == "10292-0098"
                    assert array[1] == "10292"
                    assert array[2] == "0098"
                    return array[1]
                } == "10292"

      If a capture group is optional, and doesn't match, then the corresponding value for that capture group passed to the closure will be null as illustrated here:

                assert "adsf 233-9999 adsf".find(~/(\d{3})?-?(\d{3})-(\d{4})/) { match, areaCode, exchange, stationNumber ->
                    assert "233-9999" == match
                    assert null == areaCode
                    assert "233" == exchange
                    assert "9999" == stationNumber
                    return "$exchange$stationNumber"
                } == "2339999"

      Parameters:
        `self` - a CharSequence
        `pattern` - the compiled regex Pattern
        `closure` - the closure that will be passed the full match, plus each of the capturing groups (if any)
      Returns:
        a String containing the result of calling the closure (calling toString() if needed), or null if the regex pattern doesn't match
      See Also:
        find(String, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.8.2

    - #### @Deprecated public static String find(String self, Pattern pattern)

      deprecated:
        Use the CharSequence version
      See Also:
        find(CharSequence, java.util.regex.Pattern)

    - #### @Deprecated public static String find(String self, Pattern pattern, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure closure)

      deprecated:
        Use the CharSequence version
      See Also:
        find(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)

    - #### @Deprecated public static String find(String self, String regex)

      deprecated:
        Use the CharSequence version
      See Also:
        find(CharSequence, CharSequence)

    - #### @Deprecated public static String find(String self, String regex, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure closure)

      deprecated:
        Use the CharSequence version
      See Also:
        find(CharSequence, CharSequence, groovy.lang.Closure)

    - #### public static List<String> findAll(CharSequence self, CharSequence regex)

      Returns a (possibly empty) list of all occurrences of a regular expression (provided as a CharSequence) found within a CharSequence.

      For example, if the regex doesn't match, it returns an empty list:

           assert "foo".findAll(/(\w*) Fish/) == []

      Any regular expression matches are returned in a list, and all regex capture groupings are ignored, only the full match is returned:

           def expected = ["One Fish", "Two Fish", "Red Fish", "Blue Fish"]
           assert "One Fish, Two Fish, Red Fish, Blue Fish".findAll(/(\w*) Fish/) == expected

      If you need to work with capture groups, then use the closure version of this method or use Groovy's matcher operators or use `eachMatch`.
      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex CharSequence
      Returns:
        a List containing all full matches of the regex within the CharSequence, an empty list will be returned if there are no matches
      See Also:
        findAll(CharSequence, Pattern)
      Since:
        1.8.2

    - #### <T> public static List<T> findAll(CharSequence self, CharSequence regex, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure<T> closure)

      Finds all occurrences of a regular expression string within a CharSequence. Any matches are passed to the specified closure. The closure is expected to have the full match in the first parameter. If there are any capture groups, they will be placed in subsequent parameters.

      If there are no matches, the closure will not be called, and an empty List will be returned.

      For example, if the regex doesn't match, it returns an empty list:

           assert "foo".findAll(/(\w*) Fish/) { match, firstWord -> return firstWord } == []

      Any regular expression matches are passed to the closure, if there are no capture groups, there will be one parameter for the match:

           assert "I could not, would not, with a fox.".findAll(/.ould/) { match -> "${match}n't"} == ["couldn't", "wouldn't"]

      If there are capture groups, the first parameter will be the match followed by one parameter for each capture group:

           def orig = "There's a Wocket in my Pocket"
           assert orig.findAll(/(.)ocket/) { match, firstLetter -> "$firstLetter > $match" } == ["W > Wocket", "P > Pocket"]

      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex CharSequence
        `closure` - will be passed the full match plus each of the capturing groups (if any)
      Returns:
        a List containing all results from calling the closure with each full match (and potentially capturing groups) of the regex within the CharSequence, an empty list will be returned if there are no matches
      See Also:
        findAll(CharSequence, Pattern, groovy.lang.Closure)
      Since:
        1.8.2

    - #### public static List<String> findAll(CharSequence self, Pattern pattern)

      Returns a (possibly empty) list of all occurrences of a regular expression (in Pattern format) found within a CharSequence.

      For example, if the pattern doesn't match, it returns an empty list:

           assert "foo".findAll(~/(\w*) Fish/) == []

      Any regular expression matches are returned in a list, and all regex capture groupings are ignored, only the full match is returned:

           def expected = ["One Fish", "Two Fish", "Red Fish", "Blue Fish"]
           assert "One Fish, Two Fish, Red Fish, Blue Fish".findAll(~/(\w*) Fish/) == expected

      Parameters:
        `self` - a CharSequence
        `pattern` - the compiled regex Pattern
      Returns:
        a List containing all full matches of the Pattern within the CharSequence, an empty list will be returned if there are no matches
      See Also:
        findAll(String, java.util.regex.Pattern)
      Since:
        1.8.2

    - #### <T> public static List<T> findAll(CharSequence self, Pattern pattern, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure<T> closure)

      Finds all occurrences of a compiled regular expression Pattern within a CharSequence. Any matches are passed to the specified closure. The closure is expected to have the full match in the first parameter. If there are any capture groups, they will be placed in subsequent parameters.

      If there are no matches, the closure will not be called, and an empty List will be returned.

      For example, if the pattern doesn't match, it returns an empty list:

           assert "foo".findAll(~/(\w*) Fish/) { match, firstWord -> return firstWord } == []

      Any regular expression matches are passed to the closure, if there are no capture groups, there will be one parameter for the match:

           assert "I could not, would not, with a fox.".findAll(~/.ould/) { match -> "${match}n't"} == ["couldn't", "wouldn't"]

      If there are capture groups, the first parameter will be the match followed by one parameter for each capture group:

           def orig = "There's a Wocket in my Pocket"
           assert orig.findAll(~/(.)ocket/) { match, firstLetter -> "$firstLetter > $match" } == ["W > Wocket", "P > Pocket"]

      Parameters:
        `self` - a CharSequence
        `pattern` - the compiled regex Pattern
        `closure` - will be passed the full match plus each of the capturing groups (if any)
      Returns:
        a List containing all results from calling the closure with each full match (and potentially capturing groups) of the regex pattern within the CharSequence, an empty list will be returned if there are no matches
      See Also:
        findAll(String, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.8.2

    - #### @Deprecated public static List<String> findAll(String self, Pattern pattern)

      deprecated:
        Use the CharSequence version
      See Also:
        findAll(CharSequence, java.util.regex.Pattern)

    - #### <T> @Deprecated public static List<T> findAll(String self, Pattern pattern, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure<T> closure)

      deprecated:
        Use the CharSequence version
      See Also:
        findAll(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)

    - #### @Deprecated public static List<String> findAll(String self, String regex)

      deprecated:
        Use the CharSequence version
      See Also:
        findAll(CharSequence, CharSequence)

    - #### <T> @Deprecated public static List<T> findAll(String self, String regex, @ClosureParams(value=SimpleType.class, options="java.lang.String[]") Closure<T> closure)

      deprecated:
        Use the CharSequence version
      See Also:
        findAll(CharSequence, CharSequence, groovy.lang.Closure)

    - #### public static String getAt(CharSequence self, Collection indices)

      Select a List of characters from a CharSequence using a Collection to identify the indices to be selected.

      Parameters:
        `self` - a CharSequence
        `indices` - a Collection of indices
      Returns:
        a String consisting of the characters at the given indices
      Since:
        1.0

    - #### public static String getAt(CharSequence text, EmptyRange range)

      Support the range subscript operator for CharSequence or StringBuffer with EmptyRange

      Parameters:
        `text` - a CharSequence
        `range` - an EmptyRange
      Returns:
        the empty String
      Since:
        1.5.0

    - #### public static CharSequence getAt(CharSequence text, int index)

      Support the subscript operator for CharSequence.

      Parameters:
        `text` - a CharSequence
        `index` - the index of the Character to get
      Returns:
        the Character at the given index
      Since:
        1.0

    - #### public static String getAt(GString text, int index)

      Support the subscript operator for GString.

      Parameters:
        `text` - a GString
        `index` - the index of the Character to get
      Returns:
        the Character at the given index
      Since:
        2.3.7

    - #### public static CharSequence getAt(CharSequence text, IntRange range)

      Support the range subscript operator for CharSequence with IntRange

      Parameters:
        `text` - a CharSequence
        `range` - an IntRange
      Returns:
        the subsequence CharSequence
      Since:
        1.0

    - #### public static String getAt(GString text, IntRange range)

      Support the range subscript operator for GString with IntRange

      Parameters:
        `text` - a GString
        `range` - an IntRange
      Returns:
        the String of characters corresponding to the provided range
      Since:
        2.3.7

    - #### public static CharSequence getAt(CharSequence text, Range range)

      Support the range subscript operator for CharSequence

      Parameters:
        `text` - a CharSequence
        `range` - a Range
      Returns:
        the subsequence CharSequence
      Since:
        1.0

    - #### public static String getAt(GString text, Range range)

      Support the range subscript operator for GString

      Parameters:
        `text` - a GString
        `range` - a Range
      Returns:
        the String of characters corresponding to the provided range
      Since:
        2.3.7

    - #### public static List getAt(Matcher self, Collection indices)

      Select a List of values from a Matcher using a Collection to identify the indices to be selected.

      Parameters:
        `self` - a Matcher
        `indices` - a Collection of indices
      Returns:
        a String of the values at the given indices
      Since:
        1.6.0

    - #### public static Object getAt(Matcher matcher, int idx)

      Support the subscript operator, e.g. matcher[index], for a regex Matcher.

      For an example using no group match,

              def p = /ab[d|f]/
              def m = "abcabdabeabf" =~ p
              assert 2 == m.count
              assert 2 == m.size() // synonym for m.getCount()
              assert ! m.hasGroup()
              assert 0 == m.groupCount()
              def matches = ["abd", "abf"]
              for (i in 0..<m.count) {
                assert m[i] == matches[i]
              }

      For an example using group matches,

              def p = /(?:ab([c|d|e|f]))/
              def m = "abcabdabeabf" =~ p
              assert 4 == m.count
              assert m.hasGroup()
              assert 1 == m.groupCount()
              def matches = [["abc", "c"], ["abd", "d"], ["abe", "e"], ["abf", "f"]]
              for (i in 0..<m.count) {
                assert m[i] == matches[i]
              }

      For another example using group matches,

              def m = "abcabdabeabfabxyzabx" =~ /(?:ab([d|x-z]+))/
              assert 3 == m.count
              assert m.hasGroup()
              assert 1 == m.groupCount()
              def matches = [["abd", "d"], ["abxyz", "xyz"], ["abx", "x"]]
              for (i in 0..<m.count) {
                assert m[i] == matches[i]
              }

      Parameters:
        `matcher` - a Matcher
        `idx` - an index
      Returns:
        object a matched String if no groups matched, list of matched groups otherwise.
      Since:
        1.0

    - #### @Deprecated public static String getAt(String self, Collection indices)

      deprecated:
        Use the CharSequence version
      See Also:
        getAt(CharSequence, java.util.Collection)

    - #### @Deprecated public static String getAt(String text, EmptyRange range)

      deprecated:
        Use the CharSequence version
      See Also:
        getAt(CharSequence, groovy.lang.EmptyRange)

    - #### public static String getAt(String text, int index)

      Support the subscript operator for String.

      Parameters:
        `text` - a String
        `index` - the index of the Character to get
      Returns:
        the Character at the given index
      Since:
        1.0

    - #### public static String getAt(String text, IntRange range)

      Support the range subscript operator for String with IntRange

      Parameters:
        `text` - a String
        `range` - an IntRange
      Returns:
        the resulting String
      Since:
        1.0

    - #### public static String getAt(String text, Range range)

      Support the range subscript operator for String

      Parameters:
        `text` - a String
        `range` - a Range
      Returns:
        a substring corresponding to the Range
      Since:
        1.0

    - #### public static char[] getChars(CharSequence self)

      Converts the given CharSequence into an array of characters.

      Parameters:
        `self` - a CharSequence
      Returns:
        an array of characters
      See Also:
        getChars(String)
      Since:
        1.8.2

    - #### @Deprecated public static char[] getChars(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        getChars(CharSequence)

    - #### public static int getCount(Matcher matcher)

      Find the number of Strings matched to the given Matcher.

      Parameters:
        `matcher` - a Matcher
      Returns:
        int the number of Strings matched to the given matcher.
      Since:
        1.0

    - #### public static boolean hasGroup(Matcher matcher)

      Check whether a Matcher contains a group or not.

      Parameters:
        `matcher` - a Matcher
      Returns:
        boolean `true` if matcher contains at least one group.
      Since:
        1.0

    - #### public static boolean isAllWhitespace(CharSequence self)

      True if a CharSequence only contains whitespace characters.

      Parameters:
        `self` - The CharSequence to check the characters in
      Returns:
        true If all characters are whitespace characters
      See Also:
        isAllWhitespace(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isAllWhitespace(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isAllWhitespace(CharSequence)

    - #### public static boolean isBigDecimal(CharSequence self)

      Determine if a CharSequence can be parsed as a BigDecimal.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isBigDecimal(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isBigDecimal(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isBigDecimal(CharSequence)

    - #### public static boolean isBigInteger(CharSequence self)

      Determine if a CharSequence can be parsed as a BigInteger.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isBigInteger(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isBigInteger(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isBigInteger(CharSequence)

    - #### public static boolean isCase(CharSequence caseValue, Object switchValue)

      'Case' implementation for a CharSequence, which uses equals between the toString() of the caseValue and the switchValue. This allows CharSequence values to be used in switch statements. For example:

           switch( str ) {
             case 'one' :
             // etc...
           }

      Note that this returns `true` for the case where both the 'switch' and 'case' operand is `null`.
      Parameters:
        `caseValue` - the case value
        `switchValue` - the switch value
      Returns:
        true if the switchValue's toString() equals the caseValue
      Since:
        1.8.2

    - #### @Deprecated public static boolean isCase(GString caseValue, Object switchValue)

      deprecated:
        Use the CharSequence version
      See Also:
        isCase(CharSequence, Object)

    - #### public static boolean isCase(Pattern caseValue, Object switchValue)

      'Case' implementation for the Pattern class, which allows testing a String against a number of regular expressions. For example:

          switch( str ) {
             case ~/one/ :
               // the regex 'one' matches the value of str
           }

      Note that this returns true for the case where both the pattern and the 'switch' values are `null`.
      Parameters:
        `caseValue` - the case value
        `switchValue` - the switch value
      Returns:
        true if the switchValue is deemed to match the caseValue
      Since:
        1.0

    - #### @Deprecated public static boolean isCase(String caseValue, Object switchValue)

      deprecated:
        Use the CharSequence version
      See Also:
        isCase(CharSequence, Object)

    - #### public static boolean isDouble(CharSequence self)

      Determine if a CharSequence can be parsed as a Double.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isDouble(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isDouble(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isDouble(CharSequence)

    - #### public static boolean isFloat(CharSequence self)

      Determine if a CharSequence can be parsed as a Float.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isFloat(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isFloat(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isFloat(CharSequence)

    - #### public static boolean isInteger(CharSequence self)

      Determine if a CharSequence can be parsed as an Integer.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isInteger(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isInteger(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isInteger(CharSequence)

    - #### public static boolean isLong(CharSequence self)

      Determine if a CharSequence can be parsed as a Long.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isLong(String)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isLong(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isLong(CharSequence)

    - #### public static boolean isNumber(CharSequence self)

      Determine if a CharSequence can be parsed as a Number. Synonym for 'isBigDecimal()'.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      See Also:
        isBigDecimal(CharSequence)
      Since:
        1.8.2

    - #### @Deprecated public static boolean isNumber(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        isNumber(CharSequence)

    - #### public static Iterator iterator(Matcher matcher)

      Returns an Iterator which traverses each match.

      Parameters:
        `matcher` - a Matcher object
      Returns:
        an Iterator for a Matcher
      See Also:
        Matcher.group
      Since:
        1.0

    - #### public static StringBuilder leftShift(CharSequence self, Object value)

      Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a CharSequence.

      Parameters:
        `self` - a CharSequence
        `value` - an Object
      Returns:
        a StringBuilder built from this CharSequence
      Since:
        1.8.2

    - #### public static StringBuffer leftShift(String self, Object value)

      Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a String.

      Parameters:
        `self` - a String
        `value` - an Object
      Returns:
        a StringBuffer built from this string
      Since:
        1.0

    - #### public static StringBuffer leftShift(StringBuffer self, Object value)

      Overloads the left shift operator to provide an easy way to append multiple objects as string representations to a StringBuffer.

      Parameters:
        `self` - a StringBuffer
        `value` - a value to append
      Returns:
        the StringBuffer on which this operation was invoked
      Since:
        1.0

    - #### public static StringBuilder leftShift(StringBuilder self, Object value)

      Overloads the left shift operator to provide syntactic sugar for appending to a StringBuilder.

      Parameters:
        `self` - a StringBuilder
        `value` - an Object
      Returns:
        the original StringBuilder
      Since:
        1.8.2

    - #### public static boolean matches(CharSequence self, Pattern pattern)

      Tells whether or not a CharSequence matches the given compiled regular expression Pattern.

      Parameters:
        `self` - the CharSequence that is to be matched
        `pattern` - the regex Pattern to which the string of interest is to be matched
      Returns:
        true if the CharSequence matches
      See Also:
        String.matches
      Since:
        1.8.2

    - #### @Deprecated public static boolean matches(String self, Pattern pattern)

      deprecated:
        Use the CharSequence version
      See Also:
        matches(CharSequence, Pattern)

    - #### public static boolean matchesPartially(Matcher matcher)

      Given a matcher that matches a string against a pattern, this method returns true when the string matches the pattern or if a longer string, could match the pattern. For example:

               def emailPattern = /\w+@\w+\.\w{2,}/

               def matcher = "john@doe" =~ emailPattern
               assert matcher.matchesPartially()

               matcher = "john@doe.com" =~ emailPattern
               assert matcher.matchesPartially()

               matcher = "john@@" =~ emailPattern
               assert !matcher.matchesPartially()

      Parameters:
        `matcher` - the Matcher
      Returns:
        true if more input to the String could make the matcher match the associated pattern, false otherwise.
      Since:
        2.0.0

    - #### public static String minus(CharSequence self, Object target)

      Remove a part of a CharSequence by replacing the first occurrence of target within self with '' and returns the result.

      Parameters:
        `self` - a CharSequence
        `target` - an object representing the part to remove
      Returns:
        a String containing the original minus the part to be removed
      See Also:
        minus(String, Object)
      Since:
        1.8.2

    - #### public static String minus(CharSequence self, Pattern pattern)

      Remove a part of a CharSequence. This replaces the first occurrence of the pattern within self with '' and returns the result.

      Parameters:
        `self` - a String
        `pattern` - a Pattern representing the part to remove
      Returns:
        a String minus the part to be removed
      Since:
        2.2.0

    - #### @Deprecated public static String minus(String self, Pattern pattern)

      deprecated:
        Use the CharSequence version
      See Also:
        minus(CharSequence, java.util.regex.Pattern)

    - #### @Deprecated public static String minus(String self, Object target)

      deprecated:
        Use the CharSequence version
      See Also:
        minus(CharSequence, Object)

    - #### public static String multiply(CharSequence self, Number factor)

      Repeat a CharSequence a certain number of times.

      throws:
        IllegalArgumentException if the number of repetitions is < 0
      Parameters:
        `self` - a CharSequence to be repeated
        `factor` - the number of times the CharSequence should be repeated
      Returns:
        a String composed of a repetition
      Since:
        1.8.2

    - #### @Deprecated public static String multiply(String self, Number factor)

      deprecated:
        Use the CharSequence version
      See Also:
        multiply(CharSequence, Number)

    - #### public static String next(CharSequence self)

      This method is called by the ++ operator for the class CharSequence. It increments the last character in the given CharSequence. If the last character in the CharSequence is Character.MAX_VALUE a Character.MIN_VALUE will be appended. The empty CharSequence is incremented to a string consisting of the character Character.MIN_VALUE.

      Parameters:
        `self` - a CharSequence
      Returns:
        a value obtained by incrementing the toString() of the CharSequence
      Since:
        1.8.2

    - #### @Deprecated public static String next(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        next(CharSequence)

    - #### public static String normalize(CharSequence self)

      Return a String with linefeeds and carriage returns normalized to linefeeds.

      Parameters:
        `self` - a CharSequence object
      Returns:
        the normalized toString() for the CharSequence
      See Also:
        normalize(String)
      Since:
        1.8.2

    - #### @Deprecated public static String normalize(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        normalize(CharSequence)

    - #### public static String padLeft(CharSequence self, Number numberOfChars)

      Pad a CharSequence to a minimum length specified by `numberOfChars` by adding the space character to the left as many times as needed. If the String is already the same size or bigger than the target `numberOfChars`, then the original String is returned. An example:

           println 'Numbers:'
           [1, 10, 100, 1000].each{ println it.toString().padLeft(5) }

      will produce output like:

           Numbers:
               1
              10
             100
            1000

      Parameters:
        `self` - a CharSequence object
        `numberOfChars` - the total minimum number of characters of the resulting CharSequence
      Returns:
        the CharSequence padded to the left as a String
      See Also:
        padLeft(CharSequence, Number, CharSequence)
      Since:
        1.8.2

    - #### public static String padLeft(CharSequence self, Number numberOfChars, CharSequence padding)

      Pad a CharSequence to a minimum length specified by `numberOfChars`, adding the supplied padding CharSequence as many times as needed to the left. If the CharSequence is already the same size or bigger than the target `numberOfChars`, then the toString() of the original CharSequence is returned. An example:

           println 'Numbers:'
           [1, 10, 100, 1000].each{ println it.toString().padLeft(5, '*') }
           [2, 20, 200, 2000].each{ println it.toString().padLeft(5, '*_') }

      will produce output like:

           Numbers:
           ****1
           ***10
           **100
           *1000
           *_*_2
           *_*20
           *_200
           *2000

      Parameters:
        `self` - a CharSequence object
        `numberOfChars` - the total minimum number of characters of the resulting CharSequence
        `padding` - the characters used for padding
      Returns:
        the CharSequence padded to the left as a String
      See Also:
        padLeft(String, Number, String)
      Since:
        1.8.2

    - #### @Deprecated public static String padLeft(String self, Number numberOfChars)

      deprecated:
        Use the CharSequence version
      See Also:
        padLeft(CharSequence, Number)

    - #### @Deprecated public static String padLeft(String self, Number numberOfChars, String padding)

      deprecated:
        Use the CharSequence version
      See Also:
        padLeft(CharSequence, Number, CharSequence)

    - #### public static String padRight(CharSequence self, Number numberOfChars)

      Pad a CharSequence to a minimum length specified by `numberOfChars` by adding the space character to the right as many times as needed. If the CharSequence is already the same size or bigger than the target `numberOfChars`, then the toString() of the original CharSequence is returned. An example:

           ['A', 'BB', 'CCC', 'DDDD'].each{ println it.padRight(5) + it.size() }

      will produce output like:

           A    1
           BB   2
           CCC  3
           DDDD 4

      Parameters:
        `self` - a CharSequence object
        `numberOfChars` - the total minimum number of characters of the resulting string
      Returns:
        the CharSequence padded to the right as a String
      See Also:
        padRight(String, Number)
      Since:
        1.8.2

    - #### public static String padRight(CharSequence self, Number numberOfChars, CharSequence padding)

      Pad a CharSequence to a minimum length specified by `numberOfChars`, adding the supplied padding CharSequence as many times as needed to the right. If the CharSequence is already the same size or bigger than the target `numberOfChars`, then the toString() of the original CharSequence is returned. An example:

           ['A', 'BB', 'CCC', 'DDDD'].each{ println it.padRight(5, '#') + it.size() }

      will produce output like:

           A####1
           BB###2
           CCC##3
           DDDD#4

      Parameters:
        `self` - a CharSequence object
        `numberOfChars` - the total minimum number of characters of the resulting CharSequence
        `padding` - the characters used for padding
      Returns:
        the CharSequence padded to the right as a String
      Since:
        1.8.2

    - #### @Deprecated public static String padRight(String self, Number numberOfChars)

      deprecated:
        Use the CharSequence version
      See Also:
        padRight(CharSequence, Number)

    - #### @Deprecated public static String padRight(String self, Number numberOfChars, String padding)

      deprecated:
        Use the CharSequence version
      See Also:
        padRight(CharSequence, Number, CharSequence)

    - #### public static String plus(CharSequence left, Object value)

      Appends the String representation of the given operand to this CharSequence.

      Parameters:
        `left` - a CharSequence
        `value` - any Object
      Returns:
        the original toString() of the CharSequence with the object appended
      Since:
        1.8.2

    - #### public static String plus(Number value, String right)

      Appends a String to the string representation of this number.

      Parameters:
        `value` - a Number
        `right` - a String
      Returns:
        a String
      Since:
        1.0

    - #### @Deprecated public static String plus(String left, Object value)

      deprecated:
        Use the CharSequence version
      See Also:
        plus(CharSequence, Object)

    - #### public static String plus(String left, CharSequence value)

      Appends the String representation of the given operand to this string.

      Parameters:
        `left` - a String
        `value` - any CharSequence
      Returns:
        the new string with the object appended
      Since:
        2.2

    - #### public static String plus(StringBuffer left, String value)

      Appends a String to this StringBuffer.

      Parameters:
        `left` - a StringBuffer
        `value` - a String
      Returns:
        a String
      Since:
        1.0

    - #### public static String previous(CharSequence self)

      This method is called by the -- operator for the class CharSequence. It decrements the last character in the given CharSequence. If the last character in the CharSequence is Character.MIN_VALUE it will be deleted. The empty CharSequence can't be decremented.

      Parameters:
        `self` - a CharSequence
      Returns:
        a String with a decremented character at the end
      See Also:
        previous(String)
      Since:
        1.8.2

    - #### @Deprecated public static String previous(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        previous(CharSequence)

    - #### public static void putAt(StringBuffer self, EmptyRange range, Object value)

      Support the range subscript operator for StringBuffer.

      Parameters:
        `self` - a StringBuffer
        `range` - a Range
        `value` - the object that's toString() will be inserted
      Since:
        1.0

    - #### public static void putAt(StringBuffer self, IntRange range, Object value)

      Support the range subscript operator for StringBuffer. Index values are treated as characters within the buffer.

      Parameters:
        `self` - a StringBuffer
        `range` - a Range
        `value` - the object that's toString() will be inserted
      Since:
        1.0

    - #### public static List<String> readLines(CharSequence self)

      Return the lines of a CharSequence as a List of String.

      Parameters:
        `self` - a CharSequence object
      Returns:
        a list of lines
      Since:
        1.8.2

    - #### @Deprecated public static List<String> readLines(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        readLines(CharSequence)

    - #### public static String replaceAll(CharSequence self, CharSequence regex, CharSequence replacement)

      Replaces each substring of this CharSequence that matches the given regular expression with the given replacement.

      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex
        `replacement` - the string to be substituted for each match
      Returns:
        the toString() of the CharSequence with content replaced
      See Also:
        String.replaceAll
      Since:
        1.8.2

    - #### public static String replaceAll(CharSequence self, CharSequence regex, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Replaces all occurrences of a captured group by the result of calling a closure on that text.

      Examples:

               assert "hello world".replaceAll("(o)") { it[0].toUpperCase() } == "hellO wOrld"

               assert "foobar-FooBar-".replaceAll("(([fF][oO]{2})[bB]ar)", { Object[] it -> it[0].toUpperCase() }) == "FOOBAR-FOOBAR-"

               // Here,
               //   it[0] is the global string of the matched group
               //   it[1] is the first string in the matched group
               //   it[2] is the second string in the matched group

               assert "foobar-FooBar-".replaceAll("(([fF][oO]{2})[bB]ar)", { x, y, z -> z.toUpperCase() }) == "FOO-FOO-"

               // Here,
               //   x is the global string of the matched group
               //   y is the first string in the matched group
               //   z is the second string in the matched group

      Note that unlike String.replaceAll(String regex, String replacement), where the replacement string treats '$' and '\' specially (for group substitution), the result of the closure is converted to a string and that value is used literally for the replacement.
      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex
        `closure` - the closure to apply on each captured group
      Returns:
        the toString() of the CharSequence with content replaced
      Since:
        1.8.2
      See Also:
        replaceAll(String, java.util.regex.Pattern, groovy.lang.Closure)

    - #### public static String replaceAll(CharSequence self, Pattern pattern, CharSequence replacement)

      Replaces all substrings of a CharSequence that match the given compiled regular expression with the given replacement.

      Note that backslashes (`\`) and dollar signs (`$`) in the replacement string may cause the results to be different than if it were being treated as a literal replacement string; see Matcher.replaceAll. Use Matcher.quoteReplacement to suppress the special meaning of these characters, if desired.

           assert "foo".replaceAll('o', 'X') == 'fXX'

      Parameters:
        `self` - the CharSequence that is to be matched
        `pattern` - the regex Pattern to which the CharSequence of interest is to be matched
        `replacement` - the CharSequence to be substituted for the first match
      Returns:
        The resulting `String`
      See Also:
        replaceAll(String, java.util.regex.Pattern, String)
      Since:
        1.8.2

    - #### public static String replaceAll(CharSequence self, Pattern pattern, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Replaces all occurrences of a captured group by the result of a closure call on that text.

      For examples,

               assert "hello world".replaceAll(~"(o)") { it[0].toUpperCase() } == "hellO wOrld"

               assert "foobar-FooBar-".replaceAll(~"(([fF][oO]{2})[bB]ar)", { it[0].toUpperCase() }) == "FOOBAR-FOOBAR-"

               // Here,
               //   it[0] is the global string of the matched group
               //   it[1] is the first string in the matched group
               //   it[2] is the second string in the matched group

               assert "foobar-FooBar-".replaceAll(~"(([fF][oO]{2})[bB]ar)", { Object[] it -> it[0].toUpperCase() }) == "FOOBAR-FOOBAR-"

               // Here,
               //   it[0] is the global string of the matched group
               //   it[1] is the first string in the matched group
               //   it[2] is the second string in the matched group

               assert "foobar-FooBar-".replaceAll("(([fF][oO]{2})[bB]ar)", { x, y, z -> z.toUpperCase() }) == "FOO-FOO-"

               // Here,
               //   x is the global string of the matched group
               //   y is the first string in the matched group
               //   z is the second string in the matched group

      Note that unlike String.replaceAll(String regex, String replacement), where the replacement string treats '$' and '\' specially (for group substitution), the result of the closure is converted to a string and that value is used literally for the replacement.
      Parameters:
        `self` - a CharSequence
        `pattern` - the capturing regex Pattern
        `closure` - the closure to apply on each captured group
      Returns:
        the toString() of the CharSequence with replaced content
      See Also:
        Matcher.quoteReplacement
      Since:
        1.8.2

    - #### @Deprecated public static String replaceAll(String self, Pattern pattern, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      deprecated:
        Use the CharSequence version
      See Also:
        replaceAll(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)

    - #### @Deprecated public static String replaceAll(String self, Pattern pattern, String replacement)

      deprecated:
        Use the CharSequence version
      See Also:
        replaceAll(CharSequence, java.util.regex.Pattern, CharSequence)

    - #### @Deprecated public static String replaceAll(String self, String regex, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      deprecated:
        Use the CharSequence version
      See Also:
        replaceAll(CharSequence, CharSequence, groovy.lang.Closure)

    - #### public static String replaceFirst(CharSequence self, CharSequence regex, CharSequence replacement)

      Replaces the first substring of this CharSequence that matches the given regular expression with the given replacement.

      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex
        `replacement` - the CharSequence to be substituted for each match
      Returns:
        a CharSequence with replaced content
      See Also:
        String.replaceFirst
      Since:
        1.8.2

    - #### public static String replaceFirst(CharSequence self, CharSequence regex, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Replaces the first occurrence of a captured group by the result of a closure call on that text.

      For example (with some replaceAll variants thrown in for comparison purposes),

           assert "hello world".replaceFirst("(o)") { it[0].toUpperCase() } == "hellO world" // first match
           assert "hello world".replaceAll("(o)") { it[0].toUpperCase() } == "hellO wOrld" // all matches

           assert "one fish, two fish".replaceFirst(/([a-z]{3})\s([a-z]{4})/) { [one:1, two:2][it[1]] + '-' + it[2].toUpperCase() } == '1-FISH, two fish'
           assert "one fish, two fish".replaceAll(/([a-z]{3})\s([a-z]{4})/) { [one:1, two:2][it[1]] + '-' + it[2].toUpperCase() } == '1-FISH, 2-FISH'

      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `self` - a CharSequence
        `regex` - the capturing regex
        `closure` - the closure to apply on the first captured group
      Returns:
        a CharSequence with replaced content
      See Also:
        replaceFirst(String, String, groovy.lang.Closure)
      Since:
        1.8.2

    - #### public static String replaceFirst(CharSequence self, Pattern pattern, CharSequence replacement)

      Replaces the first substring of a CharSequence that matches the given compiled regular expression with the given replacement.

      Note that backslashes (`\`) and dollar signs (`$`) in the replacement string may cause the results to be different than if it were being treated as a literal replacement string; see Matcher.replaceFirst. Use Matcher.quoteReplacement to suppress the special meaning of these characters, if desired.

           assert "foo".replaceFirst('o', 'X') == 'fXo'

      Parameters:
        `self` - the CharSequence that is to be matched
        `pattern` - the regex Pattern to which the CharSequence of interest is to be matched
        `replacement` - the CharSequence to be substituted for the first match
      Returns:
        The resulting `String`
      See Also:
        replaceFirst(String, java.util.regex.Pattern, String)
      Since:
        1.8.2

    - #### public static String replaceFirst(CharSequence self, Pattern pattern, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      Replaces the first occurrence of a captured group by the result of a closure call on that text.

      For example (with some replaceAll variants thrown in for comparison purposes),

           assert "hellO world" == "hello world".replaceFirst(~"(o)") { it[0].toUpperCase() } // first match
           assert "hellO wOrld" == "hello world".replaceAll(~"(o)") { it[0].toUpperCase() }   // all matches

           assert '1-FISH, two fish' == "one fish, two fish".replaceFirst(~/([a-z]{3})\s([a-z]{4})/) { [one:1, two:2][it[1]] + '-' + it[2].toUpperCase() }
           assert '1-FISH, 2-FISH' == "one fish, two fish".replaceAll(~/([a-z]{3})\s([a-z]{4})/) { [one:1, two:2][it[1]] + '-' + it[2].toUpperCase() }

      Parameters:
        `self` - a CharSequence
        `pattern` - the capturing regex Pattern
        `closure` - the closure to apply on the first captured group
      Returns:
        a CharSequence with replaced content
      Since:
        1.8.2

    - #### @Deprecated public static String replaceFirst(String self, Pattern pattern, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      deprecated:
        Use the CharSequence version
      See Also:
        replaceFirst(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)

    - #### @Deprecated public static String replaceFirst(String self, Pattern pattern, String replacement)

      deprecated:
        Use the CharSequence version
      See Also:
        replaceFirst(CharSequence, java.util.regex.Pattern, CharSequence)

    - #### @Deprecated public static String replaceFirst(String self, String regex, @ClosureParams(value=FromString.class, options={"List","String[]"}) Closure closure)

      deprecated:
        Use the CharSequence version
      See Also:
        replaceFirst(CharSequence, CharSequence, groovy.lang.Closure)

    - #### public static String reverse(CharSequence self)

      Creates a String which is the reverse (backwards) of this CharSequence

      Parameters:
        `self` - a CharSequence
      Returns:
        a new String with all the characters reversed.
      See Also:
        reverse(String)
      Since:
        1.8.2

    - #### @Deprecated public static String reverse(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        reverse(CharSequence)

    - #### public static void setIndex(Matcher matcher, int idx)

      Set the position of the given Matcher to the given index.

      Parameters:
        `matcher` - a Matcher
        `idx` - the index number
      Since:
        1.0

    - #### public static int size(CharSequence text)

      Provide the standard Groovy `size()` method for `CharSequence`.

      Parameters:
        `text` - a CharSequence
      Returns:
        the length of the CharSequence
      Since:
        1.8.2

    - #### public static long size(Matcher self)

      Provide the standard Groovy `size()` method for `Matcher`.

      Parameters:
        `self` - a matcher object
      Returns:
        the matcher's size (count)
      Since:
        1.5.0

    - #### public static int size(String text)

      Provide the standard Groovy `size()` method for `String`.

      Parameters:
        `text` - a String
      Returns:
        the length of the String
      Since:
        1.0

    - #### public static int size(StringBuffer buffer)

      Provide the standard Groovy `size()` method for `StringBuffer`.

      Parameters:
        `buffer` - a StringBuffer
      Returns:
        the length of the StringBuffer
      Since:
        1.0

    - #### public static String[] split(CharSequence self)

      Convenience method to split a CharSequence (with whitespace as delimiter). Similar to tokenize, but returns an Array of String instead of a List.

      Parameters:
        `self` - the CharSequence to split
      Returns:
        String[] result of split
      See Also:
        split(String)
      Since:
        1.8.2

    - #### @Deprecated public static String[] split(GString self)

      deprecated:
        Use the CharSequence version
      See Also:
        split(CharSequence)

    - #### @Deprecated public static String[] split(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        split(CharSequence)

    - #### <T> public static T splitEachLine(CharSequence self, CharSequence regex, @ClosureParams(value=FromString.class,options="List") Closure<T> closure)

      Iterates through the given CharSequence line by line, splitting each line using the given regex delimiter. The list of tokens for each line is then passed to the given closure.

      throws:
        java.io.IOException if an error occurs
      throws:
        java.util.regex.PatternSyntaxException if the regular expression's syntax is invalid
      Parameters:
        `self` - a CharSequence
        `regex` - the delimiting regular expression
        `closure` - a closure
      Returns:
        the last value returned by the closure
      See Also:
        splitEachLine(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)
      Since:
        1.8.2

    - #### <T> public static T splitEachLine(CharSequence self, Pattern pattern, @ClosureParams(value=FromString.class,options="List") Closure<T> closure)

      Iterates through the given CharSequence line by line, splitting each line using the given separator Pattern. The list of tokens for each line is then passed to the given closure.

      Parameters:
        `self` - a CharSequence
        `pattern` - the regular expression Pattern for the delimiter
        `closure` - a closure
      Returns:
        the last value returned by the closure
      Since:
        1.8.2

    - #### <T> @Deprecated public static T splitEachLine(String self, Pattern pattern, @ClosureParams(value=FromString.class,options="List") Closure<T> closure)

      deprecated:
        Use the CharSequence version
      See Also:
        splitEachLine(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)

    - #### <T> @Deprecated public static T splitEachLine(String self, String regex, @ClosureParams(value=FromString.class,options="List") Closure<T> closure)

      deprecated:
        Use the CharSequence version
      See Also:
        splitEachLine(CharSequence, java.util.regex.Pattern, groovy.lang.Closure)

    - #### public static boolean startsWithAny(CharSequence self, CharSequence... prefixes)

      Tests if this CharSequence starts with any specified prefixes.

      Parameters:
        `prefixes` - the prefixes.
      Returns:
        `true` if this CharSequence starts with any specified prefixes.
      Since:
        2.4.14

    - #### public static String stripIndent(CharSequence self)

      Strip leading spaces from every line in a CharSequence. The line with the least number of leading spaces determines the number to remove. Lines only containing whitespace are ignored when calculating the number of leading spaces to strip.

           assert '  A\n B\nC' == '   A\n  B\n C'.stripIndent()

      Parameters:
        `self` - The CharSequence to strip the leading spaces from
      Returns:
        the stripped toString() of the CharSequence
      See Also:
        stripIndent(String)
      Since:
        1.8.2

    - #### public static String stripIndent(CharSequence self, int numChars)

      Strip `numChar` leading characters from every line in a CharSequence.

           assert 'DEF\n456' == '''ABCDEF\n123456'''.stripIndent(3)

      Parameters:
        `self` - The CharSequence to strip the characters from
        `numChars` - The number of characters to strip
      Returns:
        the stripped String
      Since:
        1.8.2

    - #### @Deprecated public static String stripIndent(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        stripIndent(CharSequence)

    - #### @Deprecated public static String stripIndent(String self, int numChars)

      deprecated:
        Use the CharSequence version
      See Also:
        stripIndent(CharSequence)

    - #### public static String stripMargin(CharSequence self)

      Strip leading whitespace/control characters followed by '|' from every line in a CharSequence.

           assert 'ABC\n123\n456' == '''ABC
                                       |123
                                       |456'''.stripMargin()

      Parameters:
        `self` - The CharSequence to strip the margin from
      Returns:
        the stripped String
      See Also:
        stripMargin(CharSequence, char)
      Since:
        1.8.2

    - #### public static String stripMargin(CharSequence self, char marginChar)

      Strip leading whitespace/control characters followed by `marginChar` from every line in a CharSequence.

           assert 'ABC\n123\n456' == '''ABC
                                       *123
                                       *456'''.stripMargin('*')

      Parameters:
        `self` - The CharSequence to strip the margin from
        `marginChar` - Any character that serves as margin delimiter
      Returns:
        the stripped String
      See Also:
        stripMargin(String, char)
      Since:
        1.8.2

    - #### public static String stripMargin(CharSequence self, CharSequence marginChar)

      Strip leading whitespace/control characters followed by `marginChar` from every line in a CharSequence.

      Parameters:
        `self` - The CharSequence to strip the margin from
        `marginChar` - Any character that serves as margin delimiter
      Returns:
        the stripped CharSequence
      See Also:
        stripMargin(String, String)
      Since:
        1.8.2

    - #### @Deprecated public static String stripMargin(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        stripMargin(CharSequence)

    - #### @Deprecated public static String stripMargin(String self, char marginChar)

      deprecated:
        Use the CharSequence version
      See Also:
        stripMargin(CharSequence, char)

    - #### @Deprecated public static String stripMargin(String self, String marginChar)

      deprecated:
        Use the CharSequence version
      See Also:
        stripMargin(CharSequence, char)

    - #### public static CharSequence take(CharSequence self, int num)

      Returns the first `num` elements from this CharSequence.

           def text = "Groovy"
           assert text.take( 0 ) == ''
           assert text.take( 2 ) == 'Gr'
           assert text.take( 7 ) == 'Groovy'

      Parameters:
        `self` - the original CharSequence
        `num` - the number of chars to take from this CharSequence
      Returns:
        a CharSequence consisting of the first `num` chars, or else the whole CharSequence if it has less then `num` elements.
      Since:
        1.8.1

    - #### public static String take(GString self, int num)

      A GString variant of the equivalent CharSequence method.

      Parameters:
        `self` - the original GString
        `num` - the number of chars to take from this GString
      Returns:
        a String consisting of the first `num` chars, or else the whole GString if it has less then `num` elements.
      Since:
        2.3.7

    - #### public static CharSequence takeWhile(CharSequence self, @ClosureParams(value=SimpleType.class, options="char") Closure condition)

      Returns the longest prefix of this CharSequence where each element passed to the given closure evaluates to true.

           def text = "Groovy"
           assert text.takeWhile{ it < 'A' } == ''
           assert text.takeWhile{ it < 'Z' } == 'G'
           assert text.takeWhile{ it != 'v' } == 'Groo'
           assert text.takeWhile{ it < 'z' } == 'Groovy'

      Parameters:
        `self` - the original CharSequence
        `condition` - the closure that must evaluate to true to continue taking elements
      Returns:
        a prefix of elements in the CharSequence where each element passed to the given closure evaluates to true
      Since:
        2.0.0

    - #### public static String takeWhile(GString self, @ClosureParams(value=SimpleType.class, options="char") Closure condition)

      A GString variant of the equivalent GString method.

      Parameters:
        `self` - the original GString
        `condition` - the closure that must evaluate to true to continue taking elements
      Returns:
        a prefix of elements in the GString where each element passed to the given closure evaluates to true
      Since:
        2.3.7

    - #### public static BigDecimal toBigDecimal(CharSequence self)

      Parse a CharSequence into a BigDecimal

      Parameters:
        `self` - a CharSequence
      Returns:
        a BigDecimal
      See Also:
        toBigDecimal(String)
      Since:
        1.8.2

    - #### @Deprecated public static BigDecimal toBigDecimal(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toBigDecimal(CharSequence)

    - #### public static BigInteger toBigInteger(CharSequence self)

      Parse a CharSequence into a BigInteger

      Parameters:
        `self` - a CharSequence
      Returns:
        a BigInteger
      See Also:
        toBigInteger(String)
      Since:
        1.8.2

    - #### @Deprecated public static BigInteger toBigInteger(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toBigInteger(CharSequence)

    - #### public static Boolean toBoolean(String self)

      Converts the given string into a Boolean object. If the trimmed string is "true", "y" or "1" (ignoring case) then the result is true otherwise it is false.

      Parameters:
        `self` - a String
      Returns:
        The Boolean value
      Since:
        1.0

    - #### public static Character toCharacter(String self)

      Converts the given string into a Character object using the first character in the string.

      Parameters:
        `self` - a String
      Returns:
        the first Character
      Since:
        1.0

    - #### public static Double toDouble(CharSequence self)

      Parse a CharSequence into a Double

      Parameters:
        `self` - a CharSequence
      Returns:
        a Double
      See Also:
        toDouble(String)
      Since:
        1.8.2

    - #### @Deprecated public static Double toDouble(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toDouble(CharSequence)

    - #### public static Float toFloat(CharSequence self)

      Parse a CharSequence into a Float

      Parameters:
        `self` - a CharSequence
      Returns:
        a Float
      See Also:
        toFloat(String)
      Since:
        1.8.2

    - #### @Deprecated public static Float toFloat(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toFloat(CharSequence)

    - #### public static Integer toInteger(CharSequence self)

      Parse a CharSequence into an Integer

      Parameters:
        `self` - a CharSequence
      Returns:
        an Integer
      Since:
        1.8.2

    - #### @Deprecated public static Integer toInteger(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toInteger(CharSequence)

    - #### public static List<String> toList(CharSequence self)

      Converts the given CharSequence into a List of Strings of one character.

      Parameters:
        `self` - a CharSequence
      Returns:
        a List of characters (a 1-character String)
      See Also:
        toSet(String)
      Since:
        1.8.2

    - #### @Deprecated public static List<String> toList(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toList(CharSequence)

    - #### public static Long toLong(CharSequence self)

      Parse a CharSequence into a Long

      Parameters:
        `self` - a CharSequence
      Returns:
        a Long
      See Also:
        toLong(String)
      Since:
        1.8.2

    - #### @Deprecated public static Long toLong(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toLong(CharSequence)

    - #### public static Set<String> toSet(CharSequence self)

      Converts the given CharSequence into a Set of unique Strings of one character.

      Parameters:
        `self` - a CharSequence
      Returns:
        a Set of unique characters (each a 1-character String)
      See Also:
        toSet(String)
      Since:
        1.8.2

    - #### @Deprecated public static Set<String> toSet(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toSet(CharSequence)

    - #### public static Short toShort(CharSequence self)

      Parse a CharSequence into a Short

      Parameters:
        `self` - a CharSequence
      Returns:
        a Short
      Since:
        1.8.2

    - #### @Deprecated public static Short toShort(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        toShort(CharSequence)

    - #### @SuppressWarnings("unchecked") public static List<String> tokenize(CharSequence self)

      Tokenize a CharSequence (with a whitespace as the delimiter).

      Parameters:
        `self` - a CharSequence
      Returns:
        a List of tokens
      See Also:
        StringTokenizer.StringTokenizer
      Since:
        1.8.2

    - #### public static List<String> tokenize(CharSequence self, Character delimiter)

      Tokenize a CharSequence based on the given character delimiter. For example:

           char pathSep = ':'
           assert "/tmp:/usr".tokenize(pathSep) == ["/tmp", "/usr"]

      Parameters:
        `self` - a CharSequence
        `delimiter` - the delimiter
      Returns:
        a List of tokens
      See Also:
        StringTokenizer.StringTokenizer
      Since:
        1.8.2

    - #### @SuppressWarnings("unchecked") public static List<String> tokenize(CharSequence self, CharSequence delimiters)

      Tokenize a CharSequence based on the given CharSequence. Each character in the CharSequence is a separate delimiter.

      Parameters:
        `self` - a CharSequence
        `delimiters` - the delimiters
      Returns:
        a List of tokens
      See Also:
        StringTokenizer.StringTokenizer
      Since:
        1.8.2

    - #### @Deprecated public static List<String> tokenize(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        tokenize(CharSequence)

    - #### @Deprecated public static List<String> tokenize(String self, Character delimiter)

      deprecated:
        Use the CharSequence version
      See Also:
        tokenize(CharSequence, Character)

    - #### @Deprecated public static List<String> tokenize(String self, String delimiters)

      deprecated:
        Use the CharSequence version
      See Also:
        tokenize(CharSequence, CharSequence)

    - #### public static String tr(CharSequence self, CharSequence sourceSet, CharSequence replacementSet)

      Translates a CharSequence by replacing characters from the sourceSet with characters from replacementSet. If the first character from sourceSet appears in the CharSequence, it will be replaced with the first character from replacementSet. If the second character from sourceSet appears in the CharSequence, it will be replaced with the second character from replacementSet. and so on for all provided replacement characters.

      Here is an example which converts the vowels in a word from lower to uppercase:

           assert 'hello'.tr('aeiou', 'AEIOU') == 'hEllO'

      A character range using regex-style syntax can also be used, e.g. here is an example which converts a word from lower to uppercase:

           assert 'hello'.tr('a-z', 'A-Z') == 'HELLO'

      Hyphens at the start or end of sourceSet or replacementSet are treated as normal hyphens and are not considered to be part of a range specification. Similarly, a hyphen immediately after an earlier range is treated as a normal hyphen. So, '-x', 'x-' have no ranges while 'a-c-e' has the range 'a-c' plus the '-' character plus the 'e' character.

      Unlike the unix tr command, Groovy's tr command supports reverse ranges, e.g.:

           assert 'hello'.tr('z-a', 'Z-A') == 'HELLO'

      If replacementSet is smaller than sourceSet, then the last character from replacementSet is used as the replacement for all remaining source characters as shown here:

           assert 'Hello World!'.tr('a-z', 'A') == 'HAAAA WAAAA!'

      If sourceSet contains repeated characters, the last specified replacement is used as shown here:

           assert 'Hello World!'.tr('lloo', '1234') == 'He224 W4r2d!'

      The functionality provided by tr can be achieved using regular expressions but tr provides a much more compact notation and efficient implementation for certain scenarios.
      Parameters:
        `self` - the CharSequence that is to be translated
        `sourceSet` - the set of characters to translate from
        `replacementSet` - the set of replacement characters
      Returns:
        The resulting translated `String`
      See Also:
        StringUtil.tr
      Since:
        1.8.2

    - #### @Deprecated public static String tr(String self, String sourceSet, String replacementSet)

      deprecated:
        Use the CharSequence version
      See Also:
        tr(CharSequence, CharSequence, CharSequence)

    - #### public static String uncapitalize(CharSequence self)

      Convenience method to uncapitalize the first letter of a CharSequence (typically the first letter of a word). Example usage:

           assert 'H'.uncapitalize() == 'h'
           assert 'Hello'.uncapitalize() == 'hello'
           assert 'Hello world'.uncapitalize() == 'hello world'
           assert 'Hello World'.uncapitalize() == 'hello World'
           assert 'hello world' ==
               'Hello World'.split(' ').collect{ it.uncapitalize() }.join(' ')

      Parameters:
        `self` - The CharSequence to uncapitalize
      Returns:
        A String containing the uncapitalized toString() of the CharSequence
      Since:
        2.4.8

    - #### public static String unexpand(CharSequence self)

      Replaces sequences of whitespaces with tabs using tabStops of size 8.

      Parameters:
        `self` - A CharSequence to unexpand
      Returns:
        an unexpanded String
      See Also:
        unexpand(String)
      Since:
        1.8.2

    - #### public static String unexpand(CharSequence self, int tabStop)

      Replaces sequences of whitespaces with tabs.

      Parameters:
        `self` - A CharSequence to unexpand
        `tabStop` - The number of spaces a tab represents
      Returns:
        an unexpanded String
      Since:
        1.8.2

    - #### @Deprecated public static String unexpand(String self)

      deprecated:
        Use the CharSequence version
      See Also:
        unexpand(CharSequence)

    - #### @Deprecated public static String unexpand(String self, int tabStop)

      deprecated:
        Use the CharSequence version
      See Also:
        unexpand(CharSequence, int)

    - #### public static String unexpandLine(CharSequence self, int tabStop)

      Replaces sequences of whitespaces with tabs within a line.

      Parameters:
        `self` - A line to unexpand
        `tabStop` - The number of spaces a tab represents
      Returns:
        an unexpanded String
      Since:
        1.8.2

    - #### @Deprecated public static String unexpandLine(String self, int tabStop)

      deprecated:
        Use the CharSequence version
      See Also:
        tokenize(CharSequence)