Package: org.codehaus.groovy.runtime

## [Java] Class StringGroovyMethods

- org.codehaus.groovy.runtime.StringGroovyMethods

-     public class StringGroovyMethods
      extends DefaultGroovyMethodsSupport

  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
    --- | --- | ---
    `` | `public static StringBuilder` | `append(StringBuilder sb, GStringImpl gs)` Append the GString to the StringBuilder using a more efficient approach than Java's default approach for a CharSequence.
    `` | `public static boolean` | `asBoolean(CharSequence chars)` Coerces a CharSequence to a boolean value.
    `` | `public static boolean` | `asBoolean(Matcher matcher)` Coerces a Matcher instance to a boolean value.
    `<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.
    `<T>` | `public static T` | `asType(GString self, Class<T> c)` Converts the GString to a File, or delegates to the default DefaultGroovyMethods.asType.
    `<T>` | `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.
    `` | `public static Pattern` | `bitwiseNegate(CharSequence self)` Turns a CharSequence into a regular expression Pattern.
    `` | `public static String` | `capitalize(CharSequence self)` Convenience method to capitalize the first letter of a CharSequence (typically the first letter of a word).
    `` | `public static String` | `center(CharSequence self, Number numberOfChars)` Pads 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.
    `` | `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.
    `` | `public static String` | `collectReplacements(String self, Closure<String> transform)` Iterates through this String a character at a time collecting either the original character or a transformed replacement String.
    `` | `public static String` | `collectReplacements(String self, List<Function<Character, Optional<String>>> transforms)` Iterates through this String a character at a time collecting either the original character or a transformed replacement String.
    `` | `public static boolean` | `contains(CharSequence self, CharSequence text)` Provides an implementation of contains() like Collection.contains to make CharSequences more polymorphic.
    `` | `public static boolean` | `containsIgnoreCase(CharSequence self, CharSequence searchString)` Checks whether this CharSequence contains the `searchString` ignoring the caseConsiderations.
    `` | `public static int` | `count(CharSequence self, CharSequence text)` Counts the number of occurrences of a sub 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.
    `` | `public static CharSequence` | `drop(CharSequence self, int num)` Drops the given number of chars from the head of this CharSequence if they are available.
    `` | `public static String` | `drop(GString self, int num)` A GString variant of the equivalent CharSequence method.
    `` | `public static String` | `drop(String self, int num)` A String variant of the equivalent CharSequence method.
    `` | `public static CharSequence` | `dropRight(CharSequence self, int num)` Returns new CharSequence after removing the right `num` chars.
    `` | `public static String` | `dropRight(String self, int num)` A String variant of the equivalent CharSequence method dropRight(CharSequence,int).
    `` | `public static String` | `dropRight(GString self, int num)` A GString variant of the equivalent CharSequence method dropRight(CharSequence,int).
    `` | `public static String` | `dropWhile(CharSequence self, Closure condition)` Creates 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.
    `` | `public static String` | `dropWhile(GString self, Closure condition)` A GString variant of the equivalent CharSequence method.
    `` | `public static CharSequence` | `dropWhile$$bridge(CharSequence self, Closure condition)`
    `<T>` | `public static T` | `eachLine(CharSequence self, Closure<T> closure)` Iterates through this CharSequence line by line.
    `<T>` | `public static T` | `eachLine(CharSequence self, int firstLine, Closure<T> closure)` Iterates through this CharSequence line by line.
    `<T extends CharSequence>` | `public static T` | `eachMatch(T self, CharSequence regex, Closure closure)` Processes each regex group matched substring of the given CharSequence.
    `<T extends CharSequence>` | `public static T` | `eachMatch(T self, Pattern pattern, Closure closure)` Processes each regex group matched substring of the given pattern.
    `` | `public static String` | `eachMatch(String self, Pattern pattern, Closure closure)` Processes each regex group matched substring of the given pattern.
    `` | `public static String` | `eachMatch(String self, String regex, Closure closure)` Process each regex group matched substring of the given string.
    `` | `public static boolean` | `endsWithAny(CharSequence self, CharSequence suffixes)` Tests if this CharSequence ends with any specified suffixes.
    `` | `public static boolean` | `endsWithIgnoreCase(CharSequence self, CharSequence searchString)` Checks whether this CharSequence ends with the `searchString` ignoring the case considerations.
    `` | `public static String` | `expand(CharSequence self)` Expands all tabs into spaces with tabStops of size 8.
    `` | `public static String` | `expand(CharSequence self, int tabStop)` Expands all tabs into spaces.
    `` | `public static String` | `expandLine(CharSequence self, int tabStop)` Expands all tabs into spaces.
    `` | `public static String` | `find(CharSequence self, CharSequence regex)` Finds the first occurrence of a regular expression String within a String.
    `` | `public 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.
    `` | `public static String` | `find(CharSequence self, Pattern pattern)` Finds the first occurrence of a compiled regular expression Pattern within a String.
    `` | `public 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.
    `` | `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.
    `<T>` | `public static List<T>` | `findAll(CharSequence self, CharSequence regex, Closure<T> closure)` Finds all occurrences of a regular expression string within a CharSequence.
    `` | `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.
    `<T>` | `public static List<T>` | `findAll(CharSequence self, Pattern pattern, Closure<T> closure)` Finds all occurrences of a compiled regular expression Pattern within a CharSequence.
    `` | `public static String` | `getAt(CharSequence self, Collection indices)` Selects a List of characters from a CharSequence using a Collection to identify the indices to be selected.
    `` | `public static String` | `getAt(CharSequence self, EmptyRange range)` Supports the range subscript operator for CharSequence or StringBuffer with EmptyRange
    `` | `public static CharSequence` | `getAt(CharSequence self, int index)` Supports the subscript operator for CharSequence.
    `` | `public static String` | `getAt(GString self, int index)` Supports the subscript operator for GString.
    `` | `public static CharSequence` | `getAt(CharSequence self, IntRange range)` Supports the range subscript operator for CharSequence with IntRange.
    `` | `public static String` | `getAt(GString self, IntRange range)` Supports the range subscript operator for GString with IntRange.
    `` | `public static CharSequence` | `getAt(CharSequence self, Range range)` Supports the range subscript operator for CharSequence.
    `` | `public static String` | `getAt(GString self, Range range)` Supports the range subscript operator for GString.
    `` | `public static List` | `getAt(Matcher self, Collection indices)` Selects a List of values from a Matcher using a Collection to identify the indices to be selected.
    `` | `public static Object` | `getAt(Matcher self, int index)` Supports the subscript operator, e.g.
    `` | `public static String` | `getAt(String self, int index)` Supports the subscript operator for String.
    `` | `public static String` | `getAt(String self, IntRange range)` Supports the range subscript operator for String with IntRange.
    `` | `public static String` | `getAt(String self, Range range)` Supports the range subscript operator for String.
    `` | `public static char[]` | `getChars(CharSequence self)` Converts the given CharSequence into an array of characters.
    `` | `public static int` | `getCount(Matcher self)` Finds the number of Strings matched to the given Matcher.
    `` | `public static boolean` | `hasGroup(Matcher self)` Checks whether a Matcher contains a group or not.
    `` | `public boolean` | `hasNext()`
    `` | `public static boolean` | `isAllWhitespace(CharSequence self)` Returns true if a CharSequence only contains whitespace characters.
    `` | `public static Boolean` | `isAtLeast(String left, String right)` Compares a String representing a number to another.
    `` | `public static boolean` | `isBigDecimal(CharSequence self)` Determines if a CharSequence can be parsed as a BigDecimal.
    `` | `public static boolean` | `isBigInteger(CharSequence self)` Determines if a CharSequence can be parsed as a BigInteger.
    `` | `public static boolean` | `isBlank(CharSequence self)` Tests if this CharSequence is blank.
    `` | `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.
    `` | `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.
    `` | `public static boolean` | `isDouble(CharSequence self)` Determines if a CharSequence can be parsed as a Double.
    `` | `public static boolean` | `isFloat(CharSequence self)` Determines if a CharSequence can be parsed as a Float.
    `` | `public static boolean` | `isInteger(CharSequence self)` Determines if a CharSequence can be parsed as an Integer.
    `` | `public static boolean` | `isLong(CharSequence self)` Determines if a CharSequence can be parsed as a Long.
    `` | `public static boolean` | `isNotCase(CharSequence caseValue, Object switchValue)` Since: 4.0.0
    `` | `public static boolean` | `isNotCase(Pattern caseValue, Object switchValue)` Since: 4.0.0
    `` | `public static boolean` | `isNumber(CharSequence self)` Determines if a CharSequence can be parsed as a Number.
    `` | `public static Iterator` | `iterator(Matcher self)` Returns an Iterator which traverses each match.
    `` | `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.
    `` | `public static StringBuffer` | `leftShift(String self, Object value)`
    `` | `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.
    `` | `public static StringBuilder` | `leftShift(StringBuilder self, Object value)` Overloads the left shift operator to provide syntactic sugar for appending to a StringBuilder.
    `` | `public static boolean` | `matches(CharSequence self, Pattern pattern)` Determines if a CharSequence matches the given regular expression.
    `` | `public static boolean` | `matchesPartially(Matcher self)` Given a matcher that matches a string against a pattern, returns true when the string matches the pattern or if a longer string, could match the pattern.
    `` | `public static String` | `minus(CharSequence self, Object target)` Removes a part of a CharSequence by replacing the first occurrence of target within self with empty string and returns the result.
    `` | `public static String` | `minus(CharSequence self, Pattern pattern)` Removes a part of a CharSequence.
    `` | `public static String` | `multiply(CharSequence self, Number factor)` Repeats a CharSequence a certain number of times.
    `` | `public Object` | `next()`
    `` | `public static String` | `next(CharSequence self)` Overloads the `++` operator for the class CharSequence.
    `` | `public static String` | `normalize(CharSequence self)` Returns a String with linefeeds and carriage returns normalized to linefeeds.
    `` | `public static String` | `padLeft(CharSequence self, Number numberOfChars)` Pads a CharSequence to a minimum length specified by `numberOfChars` by adding the space character to the left as many times as needed.
    `` | `public static String` | `padLeft(CharSequence self, Number numberOfChars, CharSequence padding)` Pads a CharSequence to a minimum length specified by `numberOfChars`, adding the supplied padding CharSequence as many times as needed to the left.
    `` | `public static String` | `padRight(CharSequence self, Number numberOfChars)` Pads a CharSequence to a minimum length specified by `numberOfChars` by adding the space character to the right as many times as needed.
    `` | `public static String` | `padRight(CharSequence self, Number numberOfChars, CharSequence padding)` Pads a CharSequence to a minimum length specified by `numberOfChars`, adding the supplied padding CharSequence as many times as needed to the right.
    `` | `public static String` | `plus(CharSequence left, Object right)` Appends the String representation of the given operand to this CharSequence.
    `` | `public static String` | `plus(Number left, String right)` Appends a String to the string representation of this number.
    `` | `public static String` | `plus(String left, CharSequence right)` Appends the String representation of the given operand to this string.
    `` | `public static String` | `plus(StringBuffer left, String right)` Appends a String to this StringBuffer.
    `` | `public static String` | `previous(CharSequence self)` Overloads the `--` operator for the class CharSequence.
    `` | `public static void` | `putAt(StringBuffer self, EmptyRange range, Object value)` Supports the range subscript operator for StringBuffer.
    `` | `public static void` | `putAt(StringBuffer self, IntRange range, Object value)` Supports the range subscript operator for StringBuffer.
    `` | `public static List<String>` | `readLines(CharSequence self)` Returns the lines of a CharSequence as a List of String.
    `` | `public void` | `remove()`
    `` | `public static String` | `replace(CharSequence self, Map<CharSequence, CharSequence> replacements)` Replaces all occurrences of replacement CharSequences (supplied via a map) within a provided CharSequence.
    `` | `public static String` | `replace(CharSequence self, int capacity, Map<CharSequence, CharSequence> replacements)` Replaces all occurrences of replacement CharSequences (supplied via a map) within a provided CharSequence with control over the internally created StringBuilder's capacity.
    `` | `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.
    `` | `public 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.
    `` | `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.
    `` | `public 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.
    `` | `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.
    `` | `public 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.
    `` | `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.
    `` | `public 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.
    `` | `public static String` | `reverse(CharSequence self)` Creates a String which is the reverse (backwards) of this CharSequence
    `` | `public static void` | `setIndex(Matcher self, int index)` Sets the position of the given Matcher to the given index.
    `` | `public static int` | `size(CharSequence self)` Provides the standard Groovy `size()` method for `CharSequence`.
    `` | `public static long` | `size(Matcher self)` Provides the standard Groovy `size()` method for `Matcher`.
    `` | `public static int` | `size(String self)` Provides the standard Groovy `size()` method for `String`.
    `` | `public static int` | `size(StringBuffer self)` Provides the standard Groovy `size()` method for `StringBuffer`.
    `` | `public static String[]` | `split(CharSequence self)` Splits a CharSequence (with whitespace as delimiter).
    `<T>` | `public 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>` | `public 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.
    `` | `public static boolean` | `startsWithAny(CharSequence self, CharSequence prefixes)` Tests if this CharSequence starts with any specified prefixes.
    `` | `public static boolean` | `startsWithIgnoreCase(CharSequence self, CharSequence searchString)` Checks whether this CharSequence starts with the `searchString` ignoring the case considerations.
    `` | `public static String` | `stripIndent(CharSequence self)` Strips leading spaces from every line in a CharSequence.
    `` | `public static String` | `stripIndent(CharSequence self, boolean forceGroovyBehavior)` Same logic as stripIndent(CharSequence) if `forceGroovyBehavior` is `true`, otherwise Java 13's `stripIndent` will be invoked.
    `` | `public static String` | `stripIndent(CharSequence self, int numChars)` Strips `numChars` leading characters from every line in a CharSequence.
    `` | `public static String` | `stripMargin(CharSequence self)` Strips leading whitespace/control characters followed by '|' from every line in a CharSequence.
    `` | `public static String` | `stripMargin(CharSequence self, char marginChar)` Strips leading whitespace/control characters followed by `marginChar` from every line in a CharSequence.
    `` | `public static String` | `stripMargin(CharSequence self, CharSequence marginChar)` Strips leading whitespace/control characters followed by `marginChar` from every line in a CharSequence.
    `` | `public static CharSequence` | `take(CharSequence self, int num)` Returns the first `num` elements from this CharSequence.
    `` | `public static String` | `take(GString self, int num)` A GString variant of the equivalent CharSequence method.
    `` | `public static String` | `take(String self, int num)` A String variant of the equivalent CharSequence method.
    `` | `public static CharSequence` | `takeAfter(CharSequence self, CharSequence searchString)` Returns the `CharSequence` that exists after the first occurrence of the given `searchString` in this CharSequence.
    `` | `public static String` | `takeAfter(String self, CharSequence searchString)` A String variant of the equivalent CharSequence method takeAfter(CharSequence,CharSequence).
    `` | `public static String` | `takeAfter(GString self, CharSequence searchString)` A GString variant of the equivalent CharSequence method takeAfter(CharSequence,CharSequence).
    `` | `public static CharSequence` | `takeBefore(CharSequence self, CharSequence searchString)` Returns the `CharSequence` that exists before the first occurrence of the given `searchString` in this CharSequence.
    `` | `public static String` | `takeBefore(GString self, String searchString)` A GString variant of the equivalent CharSequence method takeBefore(CharSequence,CharSequence).
    `` | `public static String` | `takeBefore(String self, String searchString)` A String variant of the equivalent CharSequence method takeBefore(CharSequence,CharSequence).
    `` | `public static CharSequence` | `takeBetween(CharSequence self, CharSequence from, CharSequence to)` Returns the CharSequence that is in between the first occurrence of the given `from` and `to` CharSequences and empty if the unavailable inputs are given.
    `` | `public static String` | `takeBetween(String self, CharSequence from, CharSequence to)` A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence).
    `` | `public static String` | `takeBetween(GString self, CharSequence from, CharSequence to)` A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence).
    `` | `public static CharSequence` | `takeBetween(CharSequence self, CharSequence enclosure)` Takes the characters between the first occurrence of the two subsequent `enclosure` strings.
    `` | `public static String` | `takeBetween(String self, CharSequence enclosure)` A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence).
    `` | `public static String` | `takeBetween(GString self, CharSequence enclosure)` A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence).
    `` | `public static CharSequence` | `takeBetween(CharSequence self, CharSequence from, CharSequence to, int occurrence)` Returns the CharSequence that is in between the given the nth (specified by occurrence) pair of `from` and `to` CharSequences and empty if the unavailable inputs are given.
    `` | `public static String` | `takeBetween(String self, CharSequence from, CharSequence to, int occurrence)` A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence,int).
    `` | `public static String` | `takeBetween(GString self, CharSequence from, CharSequence to, int occurrence)` A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence,int).
    `` | `public static CharSequence` | `takeBetween(CharSequence self, CharSequence enclosure, int occurrence)` Takes the characters between nth (specified by occurrence) pair of `enclosure` strings.
    `` | `public static String` | `takeBetween(String self, CharSequence enclosure, int occurrence)` A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,int).
    `` | `public static String` | `takeBetween(GString self, CharSequence enclosure, int occurrence)` A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,int).
    `` | `public static CharSequence` | `takeRight(CharSequence self, int num)` Returns the last `num` elements from this CharSequence.
    `` | `public static String` | `takeRight(String self, int num)` A GString variant of the equivalent CharSequence method takeRight(CharSequence,int).
    `` | `public static String` | `takeRight(GString self, int num)` A String variant of the equivalent CharSequence method takeRight(CharSequence,int).
    `` | `public static String` | `takeWhile(CharSequence self, Closure condition)` Returns the longest prefix of this CharSequence where each element passed to the given closure evaluates to true.
    `` | `public static String` | `takeWhile(GString self, Closure condition)` A GString variant of the equivalent GString method.
    `` | `public static CharSequence` | `takeWhile$$bridge(CharSequence self, Closure condition)`
    `` | `public static BigDecimal` | `toBigDecimal(CharSequence self)` Parses a CharSequence into a BigDecimal
    `` | `public static BigInteger` | `toBigInteger(CharSequence self)` Parses a CharSequence into a BigInteger
    `` | `public static Boolean` | `toBoolean(String self)` Converts the given string into a Boolean object.
    `` | `public static Character` | `toCharacter(String self)` Converts the given string into a Character object using the first character in the string.
    `` | `public static Double` | `toDouble(CharSequence self)` Parses a CharSequence into a Double.
    `` | `public static Float` | `toFloat(CharSequence self)` Parses a CharSequence into a Float.
    `` | `public static Integer` | `toInteger(CharSequence self)` Parses a CharSequence into an Integer.
    `` | `public static List<String>` | `toList(CharSequence self)` Converts the given CharSequence into a List of Strings of one character.
    `` | `public static Long` | `toLong(CharSequence self)` Parses a CharSequence into a Long
    `` | `public static Set<String>` | `toSet(CharSequence self)` Converts the given CharSequence into a Set of unique Strings of one character.
    `` | `public static Short` | `toShort(CharSequence self)` Parses a CharSequence into a Short.
    `` | `public static List<String>` | `tokenize(CharSequence self)` Tokenizes a CharSequence (with a whitespace as the delimiter).
    `` | `public static List<String>` | `tokenize(CharSequence self, Character delimiter)` Tokenizes a CharSequence based on the given character delimiter.
    `` | `public static List<String>` | `tokenize(CharSequence self, CharSequence delimiters)` Tokenizes a CharSequence based on the given CharSequence.
    `` | `public static String` | `tr(CharSequence self, CharSequence sourceSet, CharSequence replacementSet)` Translates a CharSequence by replacing characters from the sourceSet with characters from replacementSet.
    `` | `public static String` | `uncapitalize(CharSequence self)` Convenience method to uncapitalize the first letter of a CharSequence (typically the first letter of a word).
    `` | `public static String` | `unexpand(CharSequence self)` Replaces sequences of whitespaces with tabs using tabStops of size 8.
    `` | `public static String` | `unexpand(CharSequence self, int tabStop)` Replaces sequences of whitespaces with tabs.
    `` | `public static String` | `unexpandLine(CharSequence self, int tabStop)` Replaces sequences of whitespaces with tabs within a line.

  - ### Inherited Methods Summary

    Inherited Methods
    Methods inherited from class | Name
    --- | ---
    `class DefaultGroovyMethodsSupport` | `cloneSimilarCollection, cloneSimilarMap, closeQuietly, closeWithWarning, createSimilarArray, createSimilarCollection, createSimilarCollection, createSimilarCollection, createSimilarList, createSimilarMap, createSimilarOrDefaultCollection, createSimilarQueue, createSimilarSet, normaliseIndex, sameType, subListBorders, subListBorders, subListRange, writeUTF16BomIfRequired, writeUTF16BomIfRequired, writeUTF16BomIfRequired, writeUTF16BomIfRequired`

- - ### Method Detail

    - #### public static StringBuilder append(StringBuilder sb, GStringImpl gs)

      Append the GString to the StringBuilder using a more efficient approach than Java's default approach for a CharSequence.

      Parameters:
        `sb` - a StringBuilder
        `gs` - a GStringImpl
      Returns:
        the StringBuilder
      Since:
        3.0.8

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

      Coerces a CharSequence to a boolean value. A sequence string is coerced to `false` if it is of length 0, and to `true` otherwise.

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

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

      Coerces 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
      Since:
        1.8.2
      See Also:
        asType(String,Class)

    - #### <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

    - #### 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
      Since:
        1.8.2

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

      Pads 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
      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
      Since:
        1.8.2

    - #### public static String collectReplacements(String self, @ClosureParams(value=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      Closure<String> transform)

      Iterates 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 "Groovy".collectReplacements{ it.equalsIgnoreCase('O') ? '_O_' : null } == 'Gr_O__O_vy'
           assert "Groovy".collectReplacements{ char c -> c == 'o' ? '_O_' : null } == 'Gr_O__O_vy'
           assert "Groovy".collectReplacements{ Character c -> c == 'o' ? '_O_' : null } == 'Gr_O__O_vy'
           assert "B&W".collectReplacements{ it == '&' ? '&' : null } == 'B&W'

      Parameters:
        `self` - 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.
      Since:
        2.1.0

    - #### public static String collectReplacements(String self, List<Function<Character, Optional<String>>> transforms)

      Iterates through this String a character at a time collecting either the original character or a transformed replacement String. The return value is an `Optional` either having a value equal to the transformed replacement String or `empty()` to indicate that no transformation is required.

           import java.util.function.Function
           import static java.util.Optional.*

           Function<Character, Optional<String>> xform1 = s -> s == 'o' ? of('_O') : empty()
           Function<Character, Optional<String>> xform2 = { it == 'G' ? of('G_') : empty() }
           assert "Groovy".collectReplacements([xform1, xform2]) == 'G_r_O_Ovy'

      Parameters:
        `self` - the original String
        `transforms` - one or more transforms which potentially convert a single character to a transformed string
      Returns:
        A new string in which all characters that require escaping have been replaced with the corresponding replacements as determined by the `transform` function.
      Since:
        3.0.6

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

      Provides 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
      Since:
        1.8.2

    - #### public static boolean containsIgnoreCase(CharSequence self, CharSequence searchString)

      Checks whether this CharSequence contains the `searchString` ignoring the caseConsiderations.

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence being checked against this
      Returns:
        `true` if the character sequence represented by the argument exists in this CharSequence ignoring the case considerations. `false` otherwise. Returns false if the argument is null
      Since:
        3.0.0

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

      Counts 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
      Since:
        1.8.2

    - #### 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
      Since:
        1.8.2

    - #### 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 String
      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 GString
      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.
      Since:
        2.3.7
      See Also:
        drop(String,int)

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

      A String variant of the equivalent CharSequence method.

      Parameters:
        `self` - the original String
        `num` - the number of characters to drop from this String
      Returns:
        a String consisting of all characters except the first `num` ones, or else an empty String, if the String has less than `num` characters.
      Since:
        2.5.5
      See Also:
        drop(CharSequence,int)

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

      Returns new CharSequence after removing the right `num` chars. Returns empty String if the `num` is greater than the length of the CharSequence.

           def text = "groovy"

           assert text.dropRight(  3 ) == 'gro'
           assert text.dropRight(  6 ) == ''
           assert text.dropRight(  0 ) == 'groovy'
           assert text.dropRight( -1 ) == 'groovy'
           assert text.dropRight( 10 ) == ''

      Parameters:
        `self` - the original CharSequence
        `num` - number of characters
      Returns:
        CharSequence after removing the right `num` chars and empty of the `num` is greater than the length of the CharSequence
      Since:
        3.0.0

    - #### public static String dropRight(String self, int num)

      A String variant of the equivalent CharSequence method dropRight(CharSequence,int).

      Parameters:
        `self` - the original CharSequence
        `num` - number of characters
      Returns:
        String after removing the right `num` chars and empty of the `num` is greater than the length of the CharSequence
      Since:
        3.0.0

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

      A GString variant of the equivalent CharSequence method dropRight(CharSequence,int).

      Parameters:
        `self` - the original CharSequence
        `num` - number of characters
      Returns:
        String after removing the right `num` chars and empty of the `num` is greater than the length of the CharSequence
      Since:
        3.0.0

    - #### @SuppressWarnings("unchecked")
      public static String dropWhile(CharSequence self, @ClosureParams(value=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      Closure condition)

      Creates 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=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      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
      Since:
        2.3.7
      See Also:
        dropWhile(CharSequence,Closure)

    - #### @Deprecated
      public static CharSequence dropWhile$$bridge(CharSequence self, @ClosureParams(value=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      Closure condition)

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

      Processes 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 many parameters as groups
      Returns:
        the source CharSequence
      Since:
        1.8.2
      See Also:
        eachMatch(String,String,Closure)

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

      Processes 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 many parameters as groups
      Returns:
        the source CharSequence
      Since:
        1.8.2
      See Also:
        eachMatch(String,Pattern,Closure)

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

      Processes 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 many 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 many 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 boolean endsWithIgnoreCase(CharSequence self, CharSequence searchString)

      Checks whether this CharSequence ends with the `searchString` ignoring the case considerations.

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence bring checked against this
      Returns:
        `true` if the character sequence represented by the argument is a suffix of this CharSequence ignoring the case considerations. `false` otherwise. Returns false if the argument is null
      Since:
        3.0.0

    - #### 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
      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
      Since:
        1.8.2

    - #### 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
      Since:
        1.8.2

    - #### 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
      Since:
        1.8.2
      See Also:
        find(CharSequence,Pattern)

    - #### public static String find(CharSequence self, CharSequence regex, @ClosureParams(value=FromString.class, options={"java.util.List","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
      Since:
        1.8.2
      See Also:
        find(CharSequence,Pattern,Closure)

    - #### 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
      Since:
        1.8.2

    - #### public static String find(CharSequence self, Pattern pattern, @ClosureParams(value=FromString.class, options={"java.util.List","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
      Since:
        1.8.2

    - #### 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
      Since:
        1.8.2
      See Also:
        findAll(CharSequence,Pattern)

    - #### <T> public static List<T> findAll(CharSequence self, CharSequence regex, @ClosureParams(value=FromString.class, options={"java.util.List","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
      Since:
        1.8.2
      See Also:
        findAll(CharSequence,Pattern,Closure)

    - #### 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
      Since:
        1.8.2

    - #### <T> public static List<T> findAll(CharSequence self, Pattern pattern, @ClosureParams(value=FromString.class, options={"java.util.List","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
      Since:
        1.8.2

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

      Selects 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 self, EmptyRange range)

      Supports the range subscript operator for CharSequence or StringBuffer with EmptyRange

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

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

      Supports the subscript operator for CharSequence.

      Parameters:
        `self` - 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 self, int index)

      Supports the subscript operator for GString.

      Parameters:
        `self` - 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 self, IntRange range)

      Supports the range subscript operator for CharSequence with IntRange.

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

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

      Supports the range subscript operator for GString with IntRange.

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

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

      Supports the range subscript operator for CharSequence.

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

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

      Supports the range subscript operator for GString.

      Parameters:
        `self` - 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)

      Selects 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 self, int index)

      Supports the subscript operator, e.g. `matcher[index]`, for a `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:
        `self` - a Matcher
        `index` - an index
      Returns:
        object a matched String if no groups matched, list of matched groups otherwise.
      Since:
        1.0

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

      Supports the subscript operator for String.

      Parameters:
        `self` - 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 self, IntRange range)

      Supports the range subscript operator for String with IntRange.

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

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

      Supports the range subscript operator for String.

      Parameters:
        `self` - 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
      Since:
        1.8.2

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

      Finds the number of Strings matched to the given Matcher.

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

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

      Checks whether a Matcher contains a group or not.

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

    - #### @Override
      public boolean hasNext()

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

      Returns 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
      Since:
        1.8.2

    - #### public static Boolean isAtLeast(String left, String right)

      Compares a String representing a number to another. A fluent API style alias for `compareTo` on `BigDecimal`.

      Parameters:
        `left` - a String representing a number
        `right` - a String representing a number
      Returns:
        true if the value represented by left is equal to or bigger than the value represented by right
      Since:
        3.0.1

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

      Determines if a CharSequence can be parsed as a BigDecimal.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      Since:
        1.8.2

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

      Determines if a CharSequence can be parsed as a BigInteger.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      Since:
        1.8.2

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

      Tests if this CharSequence is blank.

      Returns:
        `true` if this CharSequence is blank
      Since:
        2.5.0
      See Also:
        isAllWhitespace(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

    - #### 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

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

      Determines if a CharSequence can be parsed as a Double.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      Since:
        1.8.2

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

      Determines if a CharSequence can be parsed as a Float.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      Since:
        1.8.2

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

      Determines if a CharSequence can be parsed as an Integer.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      Since:
        1.8.2

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

      Determines if a CharSequence can be parsed as a Long.

      Parameters:
        `self` - a CharSequence
      Returns:
        true if the CharSequence can be parsed
      Since:
        1.8.2

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

      Since:
        4.0.0

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

      Since:
        4.0.0

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

      Determines if a CharSequence can be parsed as a Number.

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

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

      Returns an Iterator which traverses each match.

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

    - #### 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)

    - #### 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)

      Determines if a CharSequence matches the given regular expression.

      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
      Since:
        1.8.2
      See Also:
        String.matches

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

      Given a matcher that matches a string against a pattern, 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:
        `self` - 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)

      Removes a part of a CharSequence by replacing the first occurrence of target within self with empty string 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
      Since:
        1.8.2

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

      Removes a part of a CharSequence. This replaces the first occurrence of the pattern within self with empty string 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

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

      Repeats 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

    - #### @Override
      public Object next()

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

      Overloads 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

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

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

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

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

      Pads 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
      Since:
        1.8.2
      See Also:
        padLeft(CharSequence,Number,CharSequence)

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

      Pads 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
      Since:
        1.8.2

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

      Pads 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
      Since:
        1.8.2

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

      Pads 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

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

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

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

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

      Appends a String to the string representation of this number.

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

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

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

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

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

      Appends a String to this StringBuffer.

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

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

      Overloads 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
      Since:
        1.8.2

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

      Supports 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)

      Supports 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)

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

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

    - #### @Override
      public void remove()

    - #### public static String replace(CharSequence self, Map<CharSequence, CharSequence> replacements)

      Replaces all occurrences of replacement CharSequences (supplied via a map) within a provided CharSequence.

           assert 'foobar'.replace(f:'b', foo:'bar') == 'boobar'
           assert 'foobar'.replace(foo:'bar', f:'b') == 'barbar'
           def replacements = [foo:'bar', f:'b', b: 'f', bar:'boo']
           assert 'foobar'.replace(replacements) == 'barfar'

      Parameters:
        `self` - a CharSequence
        `replacements` - a map of before (key) and after (value) pairs processed in the natural order of the map
      Returns:
        a String formed from the provided CharSequence after performing all of the replacements
      Since:
        2.5.0

    - #### public static String replace(CharSequence self, int capacity, Map<CharSequence, CharSequence> replacements)

      Replaces all occurrences of replacement CharSequences (supplied via a map) within a provided CharSequence with control over the internally created StringBuilder's capacity. This method uses a StringBuilder internally. Java auto-expands a StringBuilder's capacity if needed. In rare circumstances, the overhead involved with repeatedly expanding the StringBuilder may become significant. If you have measured the performance of your application and found this to be a significant bottleneck, use this variant to have complete control over the internally created StringBuilder's capacity.

           assert 'foobar'.replace(9, [r:'rbaz']) == 'foobarbaz'
           assert 'foobar'.replace(1, [fooba:'']) == 'r'

      Parameters:
        `self` - a CharSequence
        `capacity` - an optimization parameter, set to size after replacements or a little larger to avoid resizing overheads
        `replacements` - a map of before (key) and after (value) pairs processed in the natural order of the map
      Returns:
        a String formed from the provided CharSequence after performing all of the replacements
      Since:
        2.5.0

    - #### 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.

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

      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
      Since:
        1.8.2
      See Also:
        String.replaceAll

    - #### 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(CharSequence,Pattern,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 from 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 toString() of the CharSequence with content replaced
      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
      Since:
        1.8.2
      See Also:
        Matcher.quoteReplacement

    - #### 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
      Since:
        1.8.2
      See Also:
        String.replaceFirst

    - #### 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
      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 from 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
      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
      Since:
        1.8.2

    - #### 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.
      Since:
        1.8.2

    - #### public static void setIndex(Matcher self, int index)

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

      Parameters:
        `self` - a Matcher
        `index` - the index number
      Since:
        1.0

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

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

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

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

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

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

    - #### @Deprecated
      public static int size(String self)

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

      Parameters:
        `self` - a String
      Returns:
        the length of the String
      Since:
        1.0
      See Also:
        size(CharSequence)

    - #### @Deprecated
      public static int size(StringBuffer self)

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

      Parameters:
        `self` - a StringBuffer
      Returns:
        the length of the StringBuffer
      Since:
        1.0
      See Also:
        size(CharSequence)

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

      Splits 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
      Since:
        1.8.2

    - #### <T> public static T splitEachLine(CharSequence self, CharSequence regex, @ClosureParams(value=FromString.class,options={"List","String[]"},conflictResolutionStrategy=PickFirstResolver.class)
      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
      Since:
        1.8.2
      See Also:
        splitEachLine(CharSequence,Pattern,Closure)

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

    - #### 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 boolean startsWithIgnoreCase(CharSequence self, CharSequence searchString)

      Checks whether this CharSequence starts with the `searchString` ignoring the case considerations.

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence being checked against this
      Returns:
        `true` if the character sequence represented by the argument is a prefix of this CharSequence ignoring the case considerations. `false` otherwise. Returns false if the argument is null
      Since:
        3.0.0

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

      Strips 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` - a CharSequence to strip the leading spaces from
      Returns:
        the stripped `toString()` of the CharSequence
      Since:
        1.8.2

    - #### @Incubating
      public static String stripIndent(CharSequence self, boolean forceGroovyBehavior)

      Same logic as stripIndent(CharSequence) if `forceGroovyBehavior` is `true`, otherwise Java 13's `stripIndent` will be invoked.

      Parameters:
        `self` - The CharSequence to strip the leading spaces from
        `forceGroovyBehavior` - force groovy behavior to avoid conflicts with Java13's stripIndent
      Since:
        3.0.0

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

      Strips `numChars` 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

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

      Strips 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
      Since:
        1.8.2
      See Also:
        stripMargin(CharSequence,char)

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

      Strips 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
      Since:
        1.8.2

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

      Strips 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
      Since:
        1.8.2

    - #### 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 than `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 than `num` elements.
      Since:
        2.3.7

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

      A String variant of the equivalent CharSequence method.

      Parameters:
        `self` - the original String
        `num` - the number of chars to take from this String
      Returns:
        a String consisting of the first `num` chars, or else the whole String if it has less than `num` elements.
      Since:
        2.5.5

    - #### public static CharSequence takeAfter(CharSequence self, CharSequence searchString)

      Returns the `CharSequence` that exists after the first occurrence of the given `searchString` in this CharSequence.

           def text = "Groovy development. Groovy team"
           assert text.takeAfter( 'Groovy' )           == ' development. Groovy team'
           assert text.takeAfter( 'team' )             == ''
           assert text.takeAfter( '' )                 == ''
           assert text.takeAfter( 'Unavailable text' ) == ''
           assert text.takeAfter( null )               == ''

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence that is searched in this CharSequence
      Returns:
        CharSequence that is after the given searchString and empty string if it does not exist
      Since:
        3.0.0

    - #### public static String takeAfter(String self, CharSequence searchString)

      A String variant of the equivalent CharSequence method takeAfter(CharSequence,CharSequence).

      Parameters:
        `self` - the original CharSequence
        `searchString` - String that is searched in this CharSequence
      Returns:
        String that is after the given searchString and empty string if it does not exist
      Since:
        3.0.0

    - #### public static String takeAfter(GString self, CharSequence searchString)

      A GString variant of the equivalent CharSequence method takeAfter(CharSequence,CharSequence).

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence that is searched in this CharSequence
      Returns:
        String that is after the given searchString and empty string if it does not exist
      Since:
        3.0.0

    - #### public static CharSequence takeBefore(CharSequence self, CharSequence searchString)

      Returns the `CharSequence` that exists before the first occurrence of the given `searchString` in this CharSequence.

           def text = "Groovy development. Groovy team"

           assert text.takeBefore( ' Groovy ' )         == 'Groovy development.'
           assert text.takeBefore( ' ' )                == 'Groovy'
           assert text.takeBefore( 'Unavailable text' ) == ''
           assert text.takeBefore( null )               == ''

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence that is searched in this CharSequence
      Returns:
        CharSequence that is before the given searchString
      Since:
        3.0.0

    - #### public static String takeBefore(GString self, String searchString)

      A GString variant of the equivalent CharSequence method takeBefore(CharSequence,CharSequence).

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence that is searched in this CharSequence
      Returns:
        String that is before the given searchString
      Since:
        3.0.0

    - #### public static String takeBefore(String self, String searchString)

      A String variant of the equivalent CharSequence method takeBefore(CharSequence,CharSequence).

      Parameters:
        `self` - the original CharSequence
        `searchString` - CharSequence that is searched in this CharSequence
      Returns:
        String that is before the given searchString
      Since:
        3.0.0

    - #### public static CharSequence takeBetween(CharSequence self, CharSequence from, CharSequence to)

      Returns the CharSequence that is in between the first occurrence of the given `from` and `to` CharSequences and empty if the unavailable inputs are given.

           def text = "Groovy"

           assert text.takeBetween( 'r', 'v' ) == 'oo'
           assert text.takeBetween( 'r', 'z' ) == ''
           assert text.takeBetween( 'a', 'r' ) == ''

      Parameters:
        `self` - the original CharSequence
        `from` - beginning of search
        `to` - end of search
      Returns:
        the CharSequence that is in between the given two CharSequences and empty if the unavailable inputs are given
      Since:
        3.0.0
      See Also:
        takeBetween(CharSequence,CharSequence,CharSequence,int)

    - #### public static String takeBetween(String self, CharSequence from, CharSequence to)

      A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence).

      Parameters:
        `self` - the original CharSequence
        `from` - beginning of search
        `to` - end of search
      Returns:
        String that is in between the given two CharSequences and empty if the unavailable inputs are given
      Since:
        3.0.0

    - #### public static String takeBetween(GString self, CharSequence from, CharSequence to)

      A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence).

      Parameters:
        `self` - the original CharSequence
        `from` - beginning of search
        `to` - end of search
      Returns:
        String that is in between the given two CharSequences and empty if the unavailable inputs are given
      Since:
        3.0.0

    - #### public static CharSequence takeBetween(CharSequence self, CharSequence enclosure)

      Takes the characters between the first occurrence of the two subsequent `enclosure` strings.

           def text = "name = 'some name'"

           assert text.takeBetween( "'" ) == 'some name'
           assert text.takeBetween( 'z' ) == ''

      Parameters:
        `self` - Original CharSequence
        `enclosure` - Enclosure CharSequence
      Returns:
        CharSequence between the 2 subsequent `enclosure` strings
      Since:
        3.0.0
      See Also:
        takeBetween(CharSequence,CharSequence,int)

    - #### public static String takeBetween(String self, CharSequence enclosure)

      A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence).

      Parameters:
        `self` - Original String
        `enclosure` - Enclosure CharSequence
      Returns:
        String between the 2 subsequent `enclosure` strings
      Since:
        3.0.0

    - #### public static String takeBetween(GString self, CharSequence enclosure)

      A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence).

      Parameters:
        `self` - Original GString
        `enclosure` - Enclosure CharSequence
      Returns:
        String between the 2 subsequent `enclosure` strings
      Since:
        3.0.0

    - #### public static CharSequence takeBetween(CharSequence self, CharSequence from, CharSequence to, int occurrence)

      Returns the CharSequence that is in between the given the nth (specified by occurrence) pair of `from` and `to` CharSequences and empty if the unavailable inputs are given.

           def text = "t1=10 ms, t2=100 ms"

           assert text.takeBetween( '=', ' ', 0 ) == '10'
           assert text.takeBetween( '=', ' ', 1 ) == '100'
           assert text.takeBetween( 't1', 'z' ) == ''

      Parameters:
        `self` - the original CharSequence
        `from` - beginning of search
        `to` - end of search
        `occurrence` - nth occurrence that is to be returned. 0 represents first one
      Returns:
        the CharSequence that is in between the given the nth (specified by occurrence) pair of `from` and `to` CharSequences and empty if the unavailable inputs are given.
      Since:
        3.0.0
      See Also:
        takeBetween(CharSequence,CharSequence,CharSequence)

    - #### public static String takeBetween(String self, CharSequence from, CharSequence to, int occurrence)

      A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence,int).

      Parameters:
        `self` - the original String
        `from` - beginning of search
        `to` - end of search
        `occurrence` - nth occurrence that is to be returned. 0 represents first one
      Returns:
        the String that is in between the given nth (specified by occurrence) pair of `from` and `to` CharSequences and empty if the unavailable inputs are given.
      Since:
        3.0.0

    - #### public static String takeBetween(GString self, CharSequence from, CharSequence to, int occurrence)

      A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,CharSequence,int).

      Parameters:
        `self` - the original GString
        `from` - beginning of search
        `to` - end of search
        `occurrence` - nth occurrence that is to be returned. 0 represents first one
      Returns:
        the String that is in between the given nth (specified by occurrence) pair of `from` and `to` CharSequences and empty if the unavailable inputs are given.
      Since:
        3.0.0

    - #### public static CharSequence takeBetween(CharSequence self, CharSequence enclosure, int occurrence)

      Takes the characters between nth (specified by occurrence) pair of `enclosure` strings.

           def text = "t1='10' ms, t2='100' ms"

           assert text.takeBetween( "'", 0 ) == '10'
           assert text.takeBetween( "'", 1 ) == '100'
           assert text.takeBetween( "'", 2 ) == ''

      Parameters:
        `self` - Original CharSequence
        `enclosure` - Enclosure CharSequence
        `occurrence` - nth occurrence being returned
      Returns:
        CharSequence between the nth occurrence of pair of `enclosure` strings
      Since:
        3.0.0
      See Also:
        takeBetween(CharSequence,CharSequence,int)

    - #### public static String takeBetween(String self, CharSequence enclosure, int occurrence)

      A String variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,int).

      Parameters:
        `self` - Original String
        `enclosure` - Enclosure CharSequence
        `occurrence` - nth occurrence being returned
      Returns:
        String between the nth occurrence of pair of `enclosure` strings
      Since:
        3.0.0

    - #### public static String takeBetween(GString self, CharSequence enclosure, int occurrence)

      A GString variant of the equivalent CharSequence method takeBetween(CharSequence,CharSequence,int).

      Parameters:
        `self` - Original GString
        `enclosure` - Enclosure CharSequence
        `occurrence` - nth occurrence being returned
      Returns:
        String between the nth occurrence of pair of `enclosure` strings
      Since:
        3.0.0

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

      Returns the last `num` elements from this CharSequence.

           def text = "Groovy"
           assert text.takeRight( 0 ) == ''
           assert text.takeRight( 2 ) == 'vy'
           assert text.takeRight( 7 ) == 'Groovy'

      Parameters:
        `self` - the original CharSequence
        `num` - the number of chars to take from this CharSequence from the right
      Returns:
        a CharSequence consisting of the last `num` chars, or else the whole CharSequence if it has less than `num` elements.
      Since:
        3.0.0

    - #### public static String takeRight(String self, int num)

      A GString variant of the equivalent CharSequence method takeRight(CharSequence,int).

      Parameters:
        `self` - the original CharSequence
        `num` - the number of chars to take from this CharSequence from the right
      Returns:
        a String consisting of the last `num` chars, or else the whole CharSequence if it has less than `num` elements.
      Since:
        3.0.0

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

      A String variant of the equivalent CharSequence method takeRight(CharSequence,int).

      Parameters:
        `self` - the original GString
        `num` - the number of chars to take from this GString from the right
      Returns:
        a String consisting of the last `num` chars, or else the whole GString if it has less than `num` elements.
      Since:
        3.0.0

    - #### @SuppressWarnings("unchecked")
      public static String takeWhile(CharSequence self, @ClosureParams(value=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      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=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      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

    - #### @Deprecated
      public static CharSequence takeWhile$$bridge(CharSequence self, @ClosureParams(value=FromString.class, conflictResolutionStrategy=PickFirstResolver.class, options={"String", "Character"})
      Closure condition)

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

      Parses a CharSequence into a BigDecimal

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

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

      Parses a CharSequence into a BigInteger

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

    - #### 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)

      Parses a CharSequence into a Double.

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

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

      Parses a CharSequence into a Float.

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

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

      Parses a CharSequence into an Integer.

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

    - #### 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)
      Since:
        1.8.2

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

      Parses a CharSequence into a Long

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

    - #### 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)
      Since:
        1.8.2

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

      Parses a CharSequence into a Short.

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

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

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

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

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

      Tokenizes 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
      Since:
        1.8.2
      See Also:
        StringTokenizer.StringTokenizer

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

      Tokenizes 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
      Since:
        1.8.2
      See Also:
        StringTokenizer.StringTokenizer

    - #### 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`
      Since:
        1.8.2
      See Also:
        StringUtil.tr

    - #### 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
      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

    - #### 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