public class StringGroovyMethods extends DefaultGroovyMethodsSupport
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.
Constructor and Description |
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StringGroovyMethods() |
Modifier and Type | Method and Description |
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static boolean |
asBoolean(CharSequence string)
Coerce a string (an instance of CharSequence) to a boolean value.
|
static boolean |
asBoolean(Matcher matcher)
Coerce a Matcher instance to a boolean value.
|
static <T> T |
asType(CharSequence self,
Class<T> c)
Provides a method to perform custom 'dynamic' type conversion
to the given class using the
as operator. |
static <T> T |
asType(GString self,
Class<T> c)
Converts the GString to a File, or delegates to the default
DefaultGroovyMethods.asType(Object, Class) |
static <T> T |
asType(String self,
Class<T> c)
Provides a method to perform custom 'dynamic' type conversion
to the given class using the
as operator. |
static Pattern |
bitwiseNegate(CharSequence self)
Turns a CharSequence into a regular expression Pattern
|
static Pattern |
bitwiseNegate(String self)
Turns a String into a regular expression Pattern
|
static CharSequence |
capitalize(CharSequence self)
Convenience method to capitalize the first letter of a CharSequence.
|
static String |
capitalize(String self)
Convenience method to capitalize the first letter of a string
(typically the first letter of a word).
|
static CharSequence |
center(CharSequence self,
Number numberOfChars)
Pad a CharSequence to a minimum length specified by numberOfChars by adding the space character around it as many times as needed so that it remains centered.
|
static CharSequence |
center(CharSequence self,
Number numberOfChars,
CharSequence padding)
Pad a CharSequence to a minimum length specified by numberOfChars, appending the supplied padding CharSequence around the original as many times as needed keeping it centered.
|
static String |
center(String self,
Number numberOfChars)
Pad a String to a minimum length specified by numberOfChars by adding the space character around it as many times as needed so that it remains centered.
|
static String |
center(String self,
Number numberOfChars,
String padding)
Pad a String to a minimum length specified by numberOfChars, appending the supplied padding String around the original as many times as needed keeping it centered.
|
static String |
collectReplacements(String orig,
Closure<String> transform)
Iterate through this String a character at a time collecting either the
original character or a transformed replacement String.
|
static boolean |
contains(CharSequence self,
CharSequence text)
Provide an implementation of contains() like
Collection.contains(Object) to make CharSequences more polymorphic. |
static boolean |
contains(String self,
String text)
Provide an implementation of contains() like
Collection.contains(Object) to make Strings more polymorphic. |
static int |
count(CharSequence self,
CharSequence text)
Count the number of occurrences of a sub CharSequence.
|
static int |
count(String self,
String text)
Count the number of occurrences of a substring.
|
static CharSequence |
denormalize(CharSequence self)
Return a CharSequence with lines (separated by LF, CR/LF, or CR)
terminated by the platform specific line separator.
|
static String |
denormalize(String self)
Return a String with lines (separated by LF, CR/LF, or CR)
terminated by the platform specific line separator.
|
static CharSequence |
drop(CharSequence self,
int num)
Drops the given number of chars from the head of this CharSequence
if they are available.
|
static CharSequence |
dropWhile(CharSequence self,
Closure condition)
Create a suffix of the given CharSequence by dropping as many characters as possible from the
front of the original CharSequence such that calling the given closure condition evaluates to
true when passed each of the dropped characters.
|
static <T> T |
eachLine(CharSequence self,
Closure<T> closure)
Iterates through this CharSequence line by line.
|
static <T> T |
eachLine(CharSequence self,
int firstLine,
Closure<T> closure)
Iterates through this CharSequence line by line.
|
static <T> T |
eachLine(String self,
Closure<T> closure)
Iterates through this String line by line.
|
static <T> T |
eachLine(String self,
int firstLine,
Closure<T> closure)
Iterates through this String line by line.
|
static String |
eachMatch(CharSequence self,
CharSequence regex,
Closure closure)
Process each regex group matched substring of the given CharSequence.
|
static String |
eachMatch(CharSequence self,
Pattern pattern,
Closure closure)
Process each regex group matched substring of the given pattern.
|
static String |
eachMatch(String self,
Pattern pattern,
Closure closure)
Process each regex group matched substring of the given pattern.
|
static String |
eachMatch(String self,
String regex,
Closure closure)
Process each regex group matched substring of the given string.
|
static CharSequence |
expand(CharSequence self)
Expands all tabs into spaces with tabStops of size 8.
|
static CharSequence |
expand(CharSequence self,
int tabStop)
Expands all tabs into spaces.
|
static String |
expand(String self)
Expands all tabs into spaces with tabStops of size 8.
|
static String |
expand(String self,
int tabStop)
Expands all tabs into spaces.
|
static CharSequence |
expandLine(CharSequence self,
int tabStop)
Expands all tabs into spaces.
|
static String |
expandLine(String self,
int tabStop)
Expands all tabs into spaces.
|
static CharSequence |
find(CharSequence self,
CharSequence regex)
Finds the first occurrence of a regular expression CharSequence within a CharSequence.
|
static CharSequence |
find(CharSequence self,
CharSequence regex,
Closure closure)
Returns the result of calling a closure with the first occurrence of a regular expression found within a CharSequence.
|
static CharSequence |
find(CharSequence self,
Pattern pattern)
Finds the first occurrence of a compiled regular expression Pattern within a CharSequence.
|
static CharSequence |
find(CharSequence self,
Pattern pattern,
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.
|
static String |
find(String self,
Pattern pattern)
Finds the first occurrence of a compiled regular expression Pattern within a String.
|
static String |
find(String self,
Pattern pattern,
Closure closure)
Returns the result of calling a closure with the first occurrence of a compiled regular expression found within a String.
|
static String |
find(String self,
String regex)
Finds the first occurrence of a regular expression String within a String.
|
static String |
find(String self,
String regex,
Closure closure)
Returns the result of calling a closure with the first occurrence of a regular expression found within a String.
|
static List<CharSequence> |
findAll(CharSequence self,
CharSequence regex)
Returns a (possibly empty) list of all occurrences of a regular expression (in CharSequence format) found within a CharSequence.
|
static <T> List<T> |
findAll(CharSequence self,
CharSequence regex,
Closure<T> closure)
Finds all occurrences of a capturing regular expression CharSequence within a CharSequence.
|
static List<CharSequence> |
findAll(CharSequence self,
Pattern pattern)
Returns a (possibly empty) list of all occurrences of a regular expression (in Pattern format) found within a CharSequence.
|
static <T> List<T> |
findAll(CharSequence self,
Pattern pattern,
Closure<T> closure)
Finds all occurrences of a compiled regular expression Pattern within a CharSequence.
|
static List<String> |
findAll(String self,
Pattern pattern)
Returns a (possibly empty) list of all occurrences of a regular expression (in Pattern format) found within a String.
|
static <T> List<T> |
findAll(String self,
Pattern pattern,
Closure<T> closure)
Finds all occurrences of a compiled regular expression Pattern within a String.
|
static List<String> |
findAll(String self,
String regex)
Returns a (possibly empty) list of all occurrences of a regular expression (in String format) found within a String.
|
static <T> List<T> |
findAll(String self,
String regex,
Closure<T> closure)
Finds all occurrences of a regular expression string within a String.
|
static CharSequence |
getAt(CharSequence self,
Collection indices)
Select a List of characters from a CharSequence using a Collection
to identify the indices to be selected.
|
static CharSequence |
getAt(CharSequence text,
EmptyRange range)
Support the range subscript operator for CharSequence or StringBuffer with EmptyRange
|
static CharSequence |
getAt(CharSequence text,
int index)
Support the subscript operator for CharSequence.
|
static CharSequence |
getAt(CharSequence text,
IntRange range)
Support the range subscript operator for CharSequence or StringBuffer with IntRange
|
static CharSequence |
getAt(CharSequence text,
Range range)
Support the range subscript operator for CharSequence
|
static List |
getAt(Matcher self,
Collection indices)
Select a List of values from a Matcher using a Collection
to identify the indices to be selected.
|
static Object |
getAt(Matcher matcher,
int idx)
Support the subscript operator, e.g. matcher[index], for a regex Matcher.
|
static String |
getAt(String self,
Collection indices)
Select a List of characters from a String using a Collection
to identify the indices to be selected.
|
static String |
getAt(String text,
EmptyRange range)
Support the range subscript operator for String with EmptyRange
|
static String |
getAt(String text,
int index)
Support the subscript operator for String.
|
static String |
getAt(String text,
IntRange range)
Support the range subscript operator for String with IntRange
|
static String |
getAt(String text,
Range range)
Support the range subscript operator for String
|
static char[] |
getChars(CharSequence self)
Converts the given CharSequence into an array of characters.
|
static char[] |
getChars(String self)
Converts the given String into an array of characters.
|
static int |
getCount(Matcher matcher)
Find the number of Strings matched to the given Matcher.
|
static boolean |
hasGroup(Matcher matcher)
Check whether a Matcher contains a group or not.
|
static boolean |
isAllWhitespace(CharSequence self)
True if a CharSequence only contains whitespace characters.
|
static boolean |
isAllWhitespace(String self)
True if a String only contains whitespace characters.
|
static boolean |
isBigDecimal(CharSequence self)
Determine if a CharSequence can be parsed as a BigDecimal.
|
static boolean |
isBigDecimal(String self)
Determine if a String can be parsed into a BigDecimal.
|
static boolean |
isBigInteger(CharSequence self)
Determine if a CharSequence can be parsed as a BigInteger.
|
static boolean |
isBigInteger(String self)
Determine if a String can be parsed into a BigInteger.
|
static boolean |
isCase(CharSequence caseValue,
Object switchValue)
'Case' implementation for a CharSequence, which simply calls the equivalent method for String.
|
static boolean |
isCase(GString caseValue,
Object switchValue)
'Case' implementation for a GString, which simply calls the equivalent method for String.
|
static boolean |
isCase(Pattern caseValue,
Object switchValue)
'Case' implementation for the
Pattern class, which allows
testing a String against a number of regular expressions. |
static boolean |
isCase(String caseValue,
Object switchValue)
'Case' implementation for a String, which uses String#equals(Object)
in order to allow Strings to be used in switch statements.
|
static boolean |
isDouble(CharSequence self)
Determine if a CharSequence can be parsed as a Double.
|
static boolean |
isDouble(String self)
Determine if a String can be parsed into a Double.
|
static boolean |
isFloat(CharSequence self)
Determine if a CharSequence can be parsed as a Float.
|
static boolean |
isFloat(String self)
Determine if a String can be parsed into a Float.
|
static boolean |
isInteger(CharSequence self)
Determine if a CharSequence can be parsed as an Integer.
|
static boolean |
isInteger(String self)
Determine if a String can be parsed into an Integer.
|
static boolean |
isLong(CharSequence self)
Determine if a CharSequence can be parsed as a Long.
|
static boolean |
isLong(String self)
Determine if a String can be parsed into a Long.
|
static boolean |
isNumber(CharSequence self)
Determine if a CharSequence can be parsed as a Number.
|
static boolean |
isNumber(String self)
Determine if a String can be parsed into a Number.
|
static Iterator |
iterator(Matcher matcher)
Returns an
Iterator which traverses each match. |
static StringBuilder |
leftShift(CharSequence self,
Object value)
Overloads the left shift operator to provide an easy way to append multiple
objects as string representations to a CharSequence.
|
static StringBuffer |
leftShift(StringBuffer self,
Object value)
Overloads the left shift operator to provide an easy way to append multiple
objects as string representations to a StringBuffer.
|
static StringBuilder |
leftShift(StringBuilder self,
Object value)
Overloads the left shift operator to provide syntactic sugar for appending to a StringBuilder.
|
static StringBuffer |
leftShift(String self,
Object value)
Overloads the left shift operator to provide an easy way to append multiple
objects as string representations to a String.
|
static boolean |
matches(CharSequence self,
Pattern pattern)
Tells whether or not a CharSequence matches the given
compiled regular expression Pattern.
|
static boolean |
matches(String self,
Pattern pattern)
Tells whether or not self matches the given
compiled regular expression Pattern.
|
static boolean |
matchesPartially(Matcher matcher)
Given a matcher that matches a string against a pattern,
this method returns true when the string matches the pattern or if a longer string, could match the pattern.
|
static CharSequence |
minus(CharSequence self,
Object target)
Remove a part of a CharSequence by replacing the first occurrence
of target within self with '' and returns the result.
|
static String |
minus(String self,
Object target)
Remove a part of a String.
|
static String |
minus(String self,
Pattern pattern)
Remove a part of a String.
|
static CharSequence |
multiply(CharSequence self,
Number factor)
Repeat a CharSequence a certain number of times.
|
static String |
multiply(String self,
Number factor)
Repeat a String a certain number of times.
|
static CharSequence |
next(CharSequence self)
This method is called by the ++ operator for the class CharSequence.
|
static String |
next(String self)
This method is called by the ++ operator for the class String.
|
static CharSequence |
normalize(CharSequence self)
Return a CharSequence with linefeeds and carriage returns normalized to linefeeds.
|
static String |
normalize(String self)
Return a String with linefeeds and carriage returns normalized to linefeeds.
|
static CharSequence |
padLeft(CharSequence self,
Number numberOfChars)
Pad a CharSequence to a minimum length specified by numberOfChars by adding the space character to the left as many times as needed.
|
static CharSequence |
padLeft(CharSequence self,
Number numberOfChars,
CharSequence padding)
Pad a CharSequence to a minimum length specified by numberOfChars, adding the supplied padding CharSequence as many times as needed to the left.
|
static String |
padLeft(String self,
Number numberOfChars)
Pad a String to a minimum length specified by numberOfChars by adding the space character to the left as many times as needed.
|
static String |
padLeft(String self,
Number numberOfChars,
String padding)
Pad a String to a minimum length specified by numberOfChars, adding the supplied padding String as many times as needed to the left.
|
static CharSequence |
padRight(CharSequence self,
Number numberOfChars)
Pad a CharSequence to a minimum length specified by numberOfChars by adding the space character to the right as many times as needed.
|
static CharSequence |
padRight(CharSequence self,
Number numberOfChars,
CharSequence padding)
Pad a CharSequence to a minimum length specified by numberOfChars, adding the supplied padding CharSequence as many times as needed to the right.
|
static String |
padRight(String self,
Number numberOfChars)
Pad a String to a minimum length specified by numberOfChars by adding the space character to the right as many times as needed.
|
static String |
padRight(String self,
Number numberOfChars,
String padding)
Pad a String to a minimum length specified by numberOfChars, adding the supplied padding String as many times as needed to the right.
|
static CharSequence |
plus(CharSequence left,
Object value)
Appends the String representation of the given operand to this string.
|
static String |
plus(Number value,
String right)
Appends a String to the string representation of this number.
|
static String |
plus(StringBuffer left,
String value)
Appends a String to this StringBuffer.
|
static String |
plus(String left,
CharSequence value)
Appends the String representation of the given operand to this string.
|
static String |
plus(String left,
Object value)
Appends the String representation of the given operand to this string.
|
static CharSequence |
previous(CharSequence self)
This method is called by the -- operator for the class CharSequence.
|
static String |
previous(String self)
This method is called by the -- operator for the class String.
|
static void |
putAt(StringBuffer self,
EmptyRange range,
Object value)
Support the range subscript operator for StringBuffer.
|
static void |
putAt(StringBuffer self,
IntRange range,
Object value)
Support the range subscript operator for StringBuffer.
|
static List<CharSequence> |
readLines(CharSequence self)
Return the lines of a CharSequence as a List of CharSequence.
|
static List<String> |
readLines(String self)
Return the lines of a String as a List of Strings.
|
static CharSequence |
replaceAll(CharSequence self,
CharSequence regex,
CharSequence replacement)
Replaces each substring of this CharSequence that matches the given
regular expression with the given replacement.
|
static CharSequence |
replaceAll(CharSequence self,
CharSequence regex,
Closure closure)
Replaces all occurrences of a captured group by the result of a closure on that text.
|
static CharSequence |
replaceAll(CharSequence self,
Pattern pattern,
CharSequence replacement)
Replaces all substrings of a CharSequence that match the given
compiled regular expression with the given replacement.
|
static String |
replaceAll(CharSequence self,
Pattern pattern,
Closure closure)
Replaces all occurrences of a captured group by the result of a closure call on that text.
|
static String |
replaceAll(String self,
Pattern pattern,
Closure closure)
Replaces all occurrences of a captured group by the result of a closure call on that text.
|
static String |
replaceAll(String self,
Pattern pattern,
String replacement)
Replaces all substrings of a String that match the given
compiled regular expression with the given replacement.
|
static String |
replaceAll(String self,
String regex,
Closure closure)
Replaces all occurrences of a captured group by the result of a closure on that text.
|
static String |
replaceFirst(CharSequence self,
CharSequence regex,
CharSequence replacement)
Replaces the first substring of this CharSequence that matches the given
regular expression with the given replacement.
|
static String |
replaceFirst(CharSequence self,
CharSequence regex,
Closure closure)
Replaces the first occurrence of a captured group by the result of a closure call on that text.
|
static CharSequence |
replaceFirst(CharSequence self,
Pattern pattern,
CharSequence replacement)
Replaces the first substring of a CharSequence that matches the given
compiled regular expression with the given replacement.
|
static String |
replaceFirst(CharSequence self,
Pattern pattern,
Closure closure)
Replaces the first occurrence of a captured group by the result of a closure call on that text.
|
static String |
replaceFirst(String self,
Pattern pattern,
Closure closure)
Replaces the first occurrence of a captured group by the result of a closure call on that text.
|
static String |
replaceFirst(String self,
Pattern pattern,
String replacement)
Replaces the first substring of a String that matches the given
compiled regular expression with the given replacement.
|
static String |
replaceFirst(String self,
String regex,
Closure closure)
Replaces the first occurrence of a captured group by the result of a closure call on that text.
|
static CharSequence |
reverse(CharSequence self)
Creates a new CharSequence which is the reverse (backwards) of this string
|
static String |
reverse(String self)
Creates a new string which is the reverse (backwards) of this string
|
static void |
setIndex(Matcher matcher,
int idx)
Set the position of the given Matcher to the given index.
|
static int |
size(CharSequence text)
Provide the standard Groovy
size() method for CharSequence . |
static long |
size(Matcher self)
Provide the standard Groovy
size() method for Matcher . |
static int |
size(String text)
Provide the standard Groovy
size() method for String . |
static int |
size(StringBuffer buffer)
Provide the standard Groovy
size() method for StringBuffer . |
static CharSequence[] |
split(CharSequence self)
Convenience method to split a CharSequence (with whitespace as delimiter).
|
static String[] |
split(GString self)
Convenience method to split a GString (with whitespace as delimiter).
|
static String[] |
split(String self)
Convenience method to split a string (with whitespace as delimiter)
Like tokenize, but returns an Array of Strings instead of a List
|
static <T> T |
splitEachLine(CharSequence self,
CharSequence regex,
Closure<T> closure)
Iterates through the given CharSequence line by line, splitting each line using
the given separator.
|
static <T> 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.
|
static <T> T |
splitEachLine(String self,
Pattern pattern,
Closure<T> closure)
Iterates through the given String line by line, splitting each line using
the given separator Pattern.
|
static <T> T |
splitEachLine(String self,
String regex,
Closure<T> closure)
Iterates through the given String line by line, splitting each line using
the given separator.
|
static CharSequence |
stripIndent(CharSequence self)
Strip leading spaces from every line in a CharSequence.
|
static CharSequence |
stripIndent(CharSequence self,
int numChars)
Strip numChar leading characters from
every line in a CharSequence.
|
static String |
stripIndent(String self)
Strip leading spaces from every line in a String.
|
static String |
stripIndent(String self,
int numChars)
Strip numChar leading characters from
every line in a String.
|
static CharSequence |
stripMargin(CharSequence self)
Strip leading whitespace/control characters followed by '|' from
every line in a CharSequence.
|
static CharSequence |
stripMargin(CharSequence self,
char marginChar)
Strip leading whitespace/control characters followed by marginChar from
every line in a String.
|
static String |
stripMargin(CharSequence self,
CharSequence marginChar)
Strip leading whitespace/control characters followed by marginChar from
every line in a CharSequence.
|
static String |
stripMargin(String self)
Strip leading whitespace/control characters followed by '|' from
every line in a String.
|
static String |
stripMargin(String self,
char marginChar)
Strip leading whitespace/control characters followed by marginChar from
every line in a String.
|
static String |
stripMargin(String self,
String marginChar)
Strip leading whitespace/control characters followed by marginChar from
every line in a String.
|
static CharSequence |
take(CharSequence self,
int num)
Returns the first
num elements from this CharSequence. |
static CharSequence |
takeWhile(CharSequence self,
Closure condition)
Returns the longest prefix of this CharSequence where each
element passed to the given closure evaluates to true.
|
static BigDecimal |
toBigDecimal(CharSequence self)
Parse a CharSequence into a BigDecimal
|
static BigDecimal |
toBigDecimal(String self)
Parse a String into a BigDecimal
|
static BigInteger |
toBigInteger(CharSequence self)
Parse a CharSequence into a BigInteger
|
static BigInteger |
toBigInteger(String self)
Parse a String into a BigInteger
|
static Boolean |
toBoolean(String self)
Converts the given string into a Boolean object.
|
static Character |
toCharacter(String self)
Converts the given string into a Character object
using the first character in the string.
|
static Double |
toDouble(CharSequence self)
Parse a CharSequence into a Double
|
static Double |
toDouble(String self)
Parse a String into a Double
|
static Float |
toFloat(CharSequence self)
Parse a CharSequence into a Float
|
static Float |
toFloat(String self)
Parse a String into a Float
|
static Integer |
toInteger(CharSequence self)
Parse a CharSequence into an Integer
|
static Integer |
toInteger(String self)
Parse a String into an Integer
|
static List<CharSequence> |
tokenize(CharSequence self)
Tokenize a CharSequence (with a whitespace as the delimiter).
|
static List<CharSequence> |
tokenize(CharSequence self,
Character token)
Tokenize a CharSequence based on the given character delimiter.
|
static List<CharSequence> |
tokenize(CharSequence self,
CharSequence token)
Tokenize a CharSequence based on the given CharSequence delimiter.
|
static List<String> |
tokenize(String self)
Tokenize a String (with a whitespace as the delimiter).
|
static List<String> |
tokenize(String self,
Character token)
Tokenize a String based on the given character delimiter.
|
static List<String> |
tokenize(String self,
String token)
Tokenize a String based on the given string delimiter.
|
static List<CharSequence> |
toList(CharSequence self)
Converts the given CharSequence into a List of CharSequence of one character.
|
static List<String> |
toList(String self)
Converts the given String into a List of strings of one character.
|
static Long |
toLong(CharSequence self)
Parse a CharSequence into a Long
|
static Long |
toLong(String self)
Parse a String into a Long
|
static Set<CharSequence> |
toSet(CharSequence self)
Converts the given CharSequence into a Set of unique CharSequence of one character.
|
static Set<String> |
toSet(String self)
Converts the given String into a Set of unique strings of one character.
|
static Short |
toShort(CharSequence self)
Parse a CharSequence into a Short
|
static Short |
toShort(String self)
Parse a String into a Short
|
static CharSequence |
tr(CharSequence self,
CharSequence sourceSet,
CharSequence replacementSet)
Translates a string by replacing characters from the sourceSet with characters from replacementSet.
|
static String |
tr(String self,
String sourceSet,
String replacementSet)
Translates a string by replacing characters from the sourceSet with characters from replacementSet.
|
static CharSequence |
unexpand(CharSequence self)
Replaces sequences of whitespaces with tabs using tabStops of size 8.
|
static CharSequence |
unexpand(CharSequence self,
int tabStop)
Replaces sequences of whitespaces with tabs.
|
static String |
unexpand(String self)
Replaces sequences of whitespaces with tabs using tabStops of size 8.
|
static String |
unexpand(String self,
int tabStop)
Replaces sequences of whitespaces with tabs.
|
static CharSequence |
unexpandLine(CharSequence self,
int tabStop)
Replaces sequences of whitespaces with tabs within a line.
|
static String |
unexpandLine(String self,
int tabStop)
Replaces sequences of whitespaces with tabs within a line.
|
cloneSimilarCollection, cloneSimilarMap, closeQuietly, closeWithWarning, createSimilarArray, createSimilarCollection, createSimilarCollection, createSimilarList, createSimilarMap, createSimilarOrDefaultCollection, createSimilarSet, normaliseIndex, sameType, subListBorders, subListBorders
public static boolean asBoolean(CharSequence string)
string
- the character sequencepublic static boolean asBoolean(Matcher matcher)
matcher
- the matcherpublic static <T> T asType(CharSequence self, Class<T> c)
Provides a method to perform custom 'dynamic' type conversion
to the given class using the as
operator.
self
- a CharSequencec
- the desired classasType(String, Class)
public static <T> T asType(GString self, Class<T> c)
DefaultGroovyMethods.asType(Object, Class)
self
- a GStringc
- the desired classpublic static <T> T asType(String self, Class<T> c)
as
operator.
Example: '123' as Double
By default, the following types are supported:
DefaultGroovyMethods.asType(Object, Class)
.self
- a Stringc
- the desired classpublic static Pattern bitwiseNegate(CharSequence self)
self
- a String to convert into a regular expressionpublic static Pattern bitwiseNegate(String self)
self
- a String to convert into a regular expressionpublic static CharSequence capitalize(CharSequence self)
self
- The CharSequence to capitalizecapitalize(String)
public static String capitalize(String self)
assert 'h'.capitalize() == 'H' assert 'hello'.capitalize() == 'Hello' assert 'hello world'.capitalize() == 'Hello world' assert 'Hello World' == 'hello world'.split(' ').collect{ it.capitalize() }.join(' ')
self
- The string to capitalizepublic static CharSequence center(CharSequence self, Number numberOfChars)
self
- a CharSequence objectnumberOfChars
- the total minimum number of characters of the resulting CharSequencecenter(String, Number)
public static CharSequence center(CharSequence self, Number numberOfChars, CharSequence padding)
self
- a CharSequence objectnumberOfChars
- the total minimum number of characters of the resulting CharSequencepadding
- the characters used for paddingcenter(String, Number, String)
public static String center(String self, Number numberOfChars)
['A', 'BB', 'CCC', 'DDDD'].each{ println '|' + it.center(6) + '|' }will produce output like:
| A | | BB | | CCC | | DDDD |
self
- a String objectnumberOfChars
- the total minimum number of characters of the resulting stringcenter(String, Number, String)
public static String center(String self, Number numberOfChars, String padding)
['A', 'BB', 'CCC', 'DDDD'].each{ println '|' + it.center(6, '+') + '|' }will produce output like:
|++A+++| |++BB++| |+CCC++| |+DDDD+|
self
- a String objectnumberOfChars
- the total minimum number of characters of the resulting stringpadding
- the characters used for paddingpublic static boolean contains(CharSequence self, CharSequence text)
Collection.contains(Object)
to make CharSequences more polymorphic.self
- a CharSequencetext
- the CharSequence to look forcontains(String, String)
public static boolean contains(String self, String text)
Collection.contains(Object)
to make Strings more polymorphic.
This method is not required on JDK 1.5 onwardsself
- a Stringtext
- a String to look forpublic static int count(CharSequence self, CharSequence text)
self
- a CharSequencetext
- a sub CharSequencecount(String, String)
public static int count(String self, String text)
self
- a Stringtext
- a substringpublic static CharSequence denormalize(CharSequence self)
self
- a CharSequence objectdenormalize(String)
public static String denormalize(String self)
self
- a String objectpublic static CharSequence drop(CharSequence self, int num)
def text = "Groovy" assert text.drop( 0 ) == 'Groovy' assert text.drop( 2 ) == 'oovy' assert text.drop( 7 ) == ''
self
- the original CharSequencenum
- the number of characters to drop from this iteratornum
ones,
or else an empty String, if this CharSequence has less than num
characters.public static CharSequence dropWhile(CharSequence self, Closure condition)
def text = "Groovy" assert text.dropWhile{ false } == 'Groovy' assert text.dropWhile{ true } == '' assert text.dropWhile{ it < 'Z' } == 'roovy' assert text.dropWhile{ it != 'v' } == 'vy'
self
- the original CharSequencecondition
- the closure that while continuously evaluating to true will cause us to drop elements from
the front of the original CharSequencepublic static <T> T eachLine(CharSequence self, Closure<T> closure) throws IOException
self
- a CharSequenceclosure
- a closureIOException
- if an error occurseachLine(String, groovy.lang.Closure)
public static <T> T eachLine(CharSequence self, int firstLine, Closure<T> closure) throws IOException
self
- a CharSequencefirstLine
- 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)IOException
- if an error occurseachLine(String, int, groovy.lang.Closure)
public static <T> T eachLine(String self, Closure<T> closure) throws IOException
self
- a Stringclosure
- a closureIOException
- if an error occurseachLine(String, int, groovy.lang.Closure)
public static <T> T eachLine(String self, int firstLine, Closure<T> closure) throws IOException
self
- a StringfirstLine
- 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)IOException
- if an error occurspublic static String collectReplacements(String orig, Closure<String> transform)
transform
Closure should return null
to indicate that no transformation is
required for the given character.
assert "Groovy".collectReplacements{ it == 'o' ? '_O_' : null } == 'Gr_O__O_vy' assert "B&W".collectReplacements{ it == '&' ? '&' : null } == 'B&W'
orig
- the original Stringtransform
Closure.public static String eachMatch(CharSequence self, CharSequence regex, Closure closure)
self
- the source CharSequenceregex
- a Regex CharSequenceclosure
- a closure with one parameter or as much parameters as groupseachMatch(String, String, groovy.lang.Closure)
public static String eachMatch(CharSequence self, Pattern pattern, Closure closure)
self
- the source CharSequencepattern
- a regex Patternclosure
- a closure with one parameter or as much parameters as groupseachMatch(String, java.util.regex.Pattern, groovy.lang.Closure)
public static String eachMatch(String self, Pattern pattern, Closure closure)
self
- the source stringpattern
- a regex Patternclosure
- a closure with one parameter or as much parameters as groupspublic static String eachMatch(String self, String regex, Closure closure)
self
- the source stringregex
- a Regex stringclosure
- a closure with one parameter or as much parameters as groupspublic static CharSequence expand(CharSequence self)
self
- A CharSequence to expandexpand(String)
public static CharSequence expand(CharSequence self, int tabStop)
self
- A CharSequence to expandtabStop
- The number of spaces a tab representsexpand(String, int)
public static String expand(String self)
self
- A String to expandexpand(String, int)
public static String expand(String self, int tabStop)
self
- A String to expandtabStop
- The number of spaces a tab representspublic static CharSequence expandLine(CharSequence self, int tabStop)
self
- A line to expandtabStop
- The number of spaces a tab representsexpandLine(String, int)
public static String expandLine(String self, int tabStop)
self
- A line to expandtabStop
- The number of spaces a tab representspublic static CharSequence find(CharSequence self, CharSequence regex)
self
- a CharSequenceregex
- the capturing regexfind(String, java.util.regex.Pattern)
public static CharSequence find(CharSequence self, CharSequence regex, Closure closure)
self
- a CharSequenceregex
- the capturing regex CharSequenceclosure
- the closure that will be passed the full match, plus each of the capturing groups (if any)find(String, java.util.regex.Pattern, groovy.lang.Closure)
public static CharSequence find(CharSequence self, Pattern pattern)
self
- a CharSequencepattern
- the compiled regex Patternfind(String, java.util.regex.Pattern)
public static CharSequence find(CharSequence self, Pattern pattern, Closure closure)
self
- a CharSequencepattern
- the compiled regex Patternclosure
- the closure that will be passed the full match, plus each of the capturing groups (if any)find(String, java.util.regex.Pattern, groovy.lang.Closure)
public static String find(String self, Pattern pattern)
For example, if the pattern doesn't match the result is null:
assert null == "New York, NY".find(~/\d{5}/)If it does match, we get the matching string back:
assert "10292" == "New York, NY 10292-0098".find(~/\d{5}/)If we have capture groups in our expression, the groups are ignored and we get back the full match:
assert "10292-0098" == "New York, NY 10292-0098".find(~/(\d{5})-?(\d{4})/)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.
self
- a Stringpattern
- the compiled regex Patternpublic static String find(String self, Pattern pattern, Closure closure)
For example, if the pattern doesn't match, the result is null:
assert null == "New York, NY".find(~/\d{5}/) { match -> return "-$match-"}If it does match and we don't have any capture groups in our regex, there is a single parameter on the closure that the match gets passed to:
assert "-10292-" == "New York, NY 10292-0098".find(~/\d{5}/) { match -> return "-$match-"}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 "10292" == "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 }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 "10292" == "New York, NY 10292-0098".find(~/(\d{5})-?(\d{4})/) { match, zip, plusFour -> assert array[0] == "10292-0098" assert array[1] == "10292" assert array[2] == "0098" return array[1] }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 "2339999" == "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" }
self
- a Stringpattern
- the compiled regex Patternclosure
- the closure that will be passed the full match, plus each of the capturing groups (if any)public static String find(String self, String regex)
For example, if the regex doesn't match the result is null:
assert null == "New York, NY".find(/\d{5}/)If it does match, we get the matching string back:
assert "10292" == "New York, NY 10292-0098".find(/\d{5}/)If we have capture groups in our expression, we still get back the full match
assert "10292-0098" == "New York, NY 10292-0098".find(/(\d{5})-?(\d{4})/)
self
- a Stringregex
- the capturing regexpublic static String find(String self, String regex, Closure closure)
For example, if the regex doesn't match, the result is null:
assert null == "New York, NY".find(~/\d{5}/) { match -> return "-$match-"}If it does match and we don't have any capture groups in our regex, there is a single parameter on the closure that the match gets passed to:
assert "-10292-" == "New York, NY 10292-0098".find(~/\d{5}/) { match -> return "-$match-"}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 "10292" == "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 }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 "10292" == "New York, NY 10292-0098".find(~/(\d{5})-?(\d{4})/) { match, zip, plusFour -> assert array[0] == "10292-0098" assert array[1] == "10292" assert array[2] == "0098" return array[1] }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 "2339999" == "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" }
self
- a Stringregex
- the capturing regex stringclosure
- the closure that will be passed the full match, plus each of the capturing groups (if any)public static List<CharSequence> findAll(CharSequence self, CharSequence regex)
self
- a CharSequenceregex
- the capturing regex CharSequencefindAll(String, String)
public static <T> List<T> findAll(CharSequence self, CharSequence regex, Closure<T> closure)
self
- a CharSequenceregex
- the capturing regex CharSequenceclosure
- will be passed the full match plus each of the capturing groups (if any)findAll(String, String, groovy.lang.Closure)
public static List<CharSequence> findAll(CharSequence self, Pattern pattern)
self
- a CharSequencepattern
- the compiled regex PatternfindAll(String, java.util.regex.Pattern)
public static <T> List<T> findAll(CharSequence self, Pattern pattern, Closure<T> closure)
self
- a CharSequencepattern
- the compiled regex Patternclosure
- will be passed the full match plus each of the capturing groups (if any)findAll(String, java.util.regex.Pattern, groovy.lang.Closure)
public static List<String> findAll(String self, Pattern pattern)
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 expected == "One Fish, Two Fish, Red Fish, Blue Fish".findAll(~/(\w*) Fish/)
self
- a Stringpattern
- the compiled regex Patternpublic static <T> List<T> findAll(String self, Pattern pattern, Closure<T> closure)
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 ["couldn't", "wouldn't"] == "I could not, would not, with a fox.".findAll(~/.ould/) { match -> "${match}n't"}If there are capture groups, the first parameter will be the match followed by one parameter for each capture group:
def orig = "There's a Wocket in my Pocket" assert ["W > Wocket", "P > Pocket"] == orig.findAll(~/(.)ocket/) { match, firstLetter -> "$firstLetter > $match" }
self
- a Stringpattern
- the compiled regex Patternclosure
- will be passed the full match plus each of the capturing groups (if any)public static List<String> findAll(String self, String regex)
For example, if the regex doesn't match, it returns an empty list:
assert [] == "foo".findAll(/(\w*) Fish/)Any regular expression matches are returned in a list, and all regex capture groupings are ignored, only the full match is returned:
def expected = ["One Fish", "Two Fish", "Red Fish", "Blue Fish"] assert expected == "One Fish, Two Fish, Red Fish, Blue Fish".findAll(/(\w*) Fish/)If you need to work with capture groups, then use the closure version of this method or use Groovy's matcher operators or use eachMatch.
self
- a Stringregex
- the capturing regex Stringpublic static <T> List<T> findAll(String self, String regex, Closure<T> closure)
If there are no matches, the closure will not be called, and an empty List will be returned.
For example, if the regex doesn't match, it returns an empty list:
assert [] == "foo".findAll(/(\w*) Fish/) { match, firstWord -> return firstWord }Any regular expression matches are passed to the closure, if there are no capture groups, there will be one parameter for the match:
assert ["couldn't", "wouldn't"] == "I could not, would not, with a fox.".findAll(/.ould/) { match -> "${match}n'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 ["W > Wocket", "P > Pocket"] == orig.findAll(/(.)ocket/) { match, firstLetter -> "$firstLetter > $match" }
self
- a Stringregex
- the capturing regex Stringclosure
- will be passed the full match plus each of the capturing groups (if any)public static CharSequence getAt(CharSequence self, Collection indices)
self
- a CharSequenceindices
- a Collection of indicespublic static CharSequence getAt(CharSequence text, EmptyRange range)
text
- a CharSequencerange
- an EmptyRangepublic static CharSequence getAt(CharSequence text, int index)
text
- a CharSequenceindex
- the index of the Character to getpublic static CharSequence getAt(CharSequence text, IntRange range)
text
- a CharSequencerange
- an IntRangepublic static CharSequence getAt(CharSequence text, Range range)
text
- a CharSequencerange
- a Rangepublic static List getAt(Matcher self, Collection indices)
self
- a Matcherindices
- a Collection of indicespublic static Object getAt(Matcher matcher, int idx)
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] }
matcher
- a Matcheridx
- an indexpublic static boolean matchesPartially(Matcher matcher)
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()
matcher
- the Matcherpublic static String getAt(String self, Collection indices)
self
- a Stringindices
- a Collection of indicespublic static String getAt(String text, EmptyRange range)
text
- a Stringrange
- an EmptyRangepublic static String getAt(String text, int index)
text
- a Stringindex
- the index of the Character to getpublic static String getAt(String text, IntRange range)
text
- a Stringrange
- an IntRangepublic static String getAt(String text, Range range)
text
- a Stringrange
- a Rangepublic static char[] getChars(CharSequence self)
self
- a CharSequencegetChars(String)
public static char[] getChars(String self)
self
- a StringString.toCharArray()
public static int getCount(Matcher matcher)
matcher
- a Matcherpublic static boolean hasGroup(Matcher matcher)
matcher
- a Matchertrue
if matcher contains at least one group.public static boolean isAllWhitespace(CharSequence self)
self
- The CharSequence to check the characters inisAllWhitespace(String)
public static boolean isAllWhitespace(String self)
self
- The String to check the characters inCharacter.isWhitespace(char)
public static boolean isBigDecimal(CharSequence self)
self
- a CharSequenceisBigDecimal(String)
public static boolean isBigDecimal(String self)
self
- a Stringpublic static boolean isBigInteger(CharSequence self)
self
- a CharSequenceisBigInteger(String)
public static boolean isBigInteger(String self)
self
- a Stringpublic static boolean isCase(CharSequence caseValue, Object switchValue)
caseValue
- the case valueswitchValue
- the switch valuepublic static boolean isCase(GString caseValue, Object switchValue)
caseValue
- the case valueswitchValue
- the switch valuepublic static boolean isCase(Pattern caseValue, Object switchValue)
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
.caseValue
- the case valueswitchValue
- the switch valuepublic static boolean isCase(String caseValue, Object switchValue)
switch( str ) { case 'one' : // etc... }Note that this returns
true
for the case where both the
'switch' and 'case' operand is null
.caseValue
- the case valueswitchValue
- the switch valuepublic static boolean isDouble(CharSequence self)
self
- a CharSequenceisDouble(String)
public static boolean isDouble(String self)
self
- a Stringpublic static boolean isFloat(CharSequence self)
self
- a CharSequenceisFloat(String)
public static boolean isFloat(String self)
self
- a Stringpublic static boolean isInteger(CharSequence self)
self
- a CharSequenceisInteger(String)
public static boolean isInteger(String self)
self
- a Stringpublic static boolean isLong(CharSequence self)
self
- a CharSequenceisLong(String)
public static boolean isLong(String self)
self
- a Stringpublic static boolean isNumber(CharSequence self)
self
- a CharSequenceisNumber(String)
public static boolean isNumber(String self)
self
- a StringisBigDecimal(String)
public static Iterator iterator(Matcher matcher)
Iterator
which traverses each match.matcher
- a Matcher objectMatcher.group()
public static StringBuilder leftShift(CharSequence self, Object value)
self
- a CharSequencevalue
- an Objectpublic static StringBuffer leftShift(String self, Object value)
self
- a Stringvalue
- an Objectpublic static StringBuffer leftShift(StringBuffer self, Object value)
self
- a StringBuffervalue
- a value to appendpublic static StringBuilder leftShift(StringBuilder self, Object value)
self
- a StringBuildervalue
- an Objectpublic static boolean matches(CharSequence self, Pattern pattern)
self
- the CharSequence that is to be matchedpattern
- the regex Pattern to which the string of interest is to be matchedString.matches(String)
public static boolean matches(String self, Pattern pattern)
self
- the string that is to be matchedpattern
- the regex Pattern to which the string of interest is to be matchedString.matches(String)
public static CharSequence minus(CharSequence self, Object target)
self
- a CharSequencetarget
- an object representing the part to removeminus(String, Object)
public static String minus(String self, Pattern pattern)
self
- a Stringpattern
- a Pattern representing the part to removepublic static String minus(String self, Object target)
self
- a Stringtarget
- an object representing the part to removepublic static CharSequence multiply(CharSequence self, Number factor)
self
- a CharSequence to be repeatedfactor
- the number of times the CharSequence should be repeatedIllegalArgumentException
- if the number of repetitions is < 0public static String multiply(String self, Number factor)
self
- a String to be repeatedfactor
- the number of times the String should be repeatedIllegalArgumentException
- if the number of repetitions is < 0public static CharSequence next(CharSequence self)
self
- a CharSequencenext(String)
public static String next(String self)
self
- a Stringpublic static CharSequence normalize(CharSequence self)
self
- a CharSequence objectnormalize(String)
public static String normalize(String self)
self
- a String objectpublic static CharSequence padLeft(CharSequence self, Number numberOfChars)
self
- a CharSequence objectnumberOfChars
- the total minimum number of characters of the resulting CharSequencepadLeft(CharSequence, Number, CharSequence)
public static CharSequence padLeft(CharSequence self, Number numberOfChars, CharSequence padding)
self
- a CharSequence objectnumberOfChars
- the total minimum number of characters of the resulting CharSequencepadding
- the characters used for paddingpadLeft(String, Number, String)
public static String padLeft(String self, Number numberOfChars)
println 'Numbers:' [1, 10, 100, 1000].each{ println it.toString().padLeft(5) }will produce output like:
Numbers: 1 10 100 1000
self
- a String objectnumberOfChars
- the total minimum number of characters of the resulting stringpadLeft(String, Number, String)
public static String padLeft(String self, Number numberOfChars, String padding)
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
self
- a String objectnumberOfChars
- the total minimum number of characters of the resulting stringpadding
- the characters used for paddingpublic static CharSequence padRight(CharSequence self, Number numberOfChars)
self
- a CharSequence objectnumberOfChars
- the total minimum number of characters of the resulting stringpadRight(String, Number)
public static CharSequence padRight(CharSequence self, Number numberOfChars, CharSequence padding)
self
- a CharSequence objectnumberOfChars
- the total minimum number of characters of the resulting CharSequencepadding
- the characters used for paddingpadRight(String, Number, String)
public static String padRight(String self, Number numberOfChars)
['A', 'BB', 'CCC', 'DDDD'].each{ println it.padRight(5) + it.size() }will produce output like:
A 1 BB 2 CCC 3 DDDD 4
self
- a String objectnumberOfChars
- the total minimum number of characters of the resulting stringpublic static String padRight(String self, Number numberOfChars, String padding)
['A', 'BB', 'CCC', 'DDDD'].each{ println it.padRight(5, '#') + it.size() }will produce output like:
A####1 BB###2 CCC##3 DDDD#4
self
- a String objectnumberOfChars
- the total minimum number of characters of the resulting stringpadding
- the characters used for paddingpublic static CharSequence plus(CharSequence left, Object value)
left
- a CharSequencevalue
- any Objectpublic static String plus(Number value, String right)
value
- a Numberright
- a Stringpublic static String plus(String left, Object value)
left
- a Stringvalue
- any Objectpublic static String plus(String left, CharSequence value)
left
- a Stringvalue
- any CharSequencepublic static String plus(StringBuffer left, String value)
left
- a StringBuffervalue
- a Stringpublic static CharSequence previous(CharSequence self)
self
- a CharSequenceprevious(String)
public static String previous(String self)
self
- a Stringpublic static void putAt(StringBuffer self, EmptyRange range, Object value)
self
- a StringBufferrange
- a Rangevalue
- the object that's toString() will be insertedpublic static void putAt(StringBuffer self, IntRange range, Object value)
self
- a StringBufferrange
- a Rangevalue
- the object that's toString() will be insertedpublic static List<CharSequence> readLines(CharSequence self) throws IOException
self
- a CharSequence objectIOException
- if an error occurspublic static List<String> readLines(String self) throws IOException
self
- a String objectIOException
- if an error occurspublic static CharSequence replaceAll(CharSequence self, CharSequence regex, CharSequence replacement)
self
- a CharSequenceregex
- the capturing regexreplacement
- the capturing regexPatternSyntaxException
- if the regular expression's syntax is invalidString.replaceAll(String, String)
public static CharSequence replaceAll(CharSequence self, CharSequence regex, Closure closure)
self
- a CharSequenceregex
- the capturing regexclosure
- the closure to apply on each captured groupPatternSyntaxException
- if the regular expression's syntax is invalidreplaceAll(String, java.util.regex.Pattern, groovy.lang.Closure)
public static CharSequence replaceAll(CharSequence self, Pattern pattern, CharSequence replacement)
self
- the CharSequence that is to be matchedpattern
- the regex Pattern to which the CharSequence of interest is to be matchedreplacement
- the CharSequence to be substituted for the first matchreplaceAll(String, java.util.regex.Pattern, String)
public static String replaceAll(CharSequence self, Pattern pattern, Closure closure)
self
- a CharSequencepattern
- the capturing regex Patternclosure
- the closure to apply on each captured groupreplaceAll(String, java.util.regex.Pattern, groovy.lang.Closure)
public static String replaceAll(String self, Pattern pattern, Closure closure)
For examples,
assert "hellO wOrld" == "hello world".replaceAll(~"(o)") { it[0].toUpperCase() } assert "FOOBAR-FOOBAR-" == "foobar-FooBar-".replaceAll(~"(([fF][oO]{2})[bB]ar)", { it[0].toUpperCase() }) 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-" == "foobar-FooBar-".replaceAll(~"(([fF][oO]{2})[bB]ar)", { Object[] it -> it[0].toUpperCase() }) 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 "FOO-FOO-" == "foobar-FooBar-".replaceAll("(([fF][oO]{2})[bB]ar)", { x, y, z -> z.toUpperCase() }) 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 groupNote 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.
self
- a Stringpattern
- the capturing regex Patternclosure
- the closure to apply on each captured groupMatcher.quoteReplacement(String)
public static String replaceAll(String self, Pattern pattern, String replacement)
Note that backslashes (\) and dollar signs ($) in the
replacement string may cause the results to be different than if it were
being treated as a literal replacement string; see
Matcher.replaceAll(java.lang.String)
.
Use Matcher.quoteReplacement(java.lang.String)
to suppress the special
meaning of these characters, if desired.
assert "foo".replaceAll('o', 'X') == 'fXX'
self
- the string that is to be matchedpattern
- the regex Pattern to which the string of interest is to be matchedreplacement
- the string to be substituted for the first matchString.replaceAll(String, String)
public static String replaceAll(String self, String regex, Closure closure)
For examples,
assert "hellO wOrld" == "hello world".replaceAll("(o)") { it[0].toUpperCase() } assert "FOOBAR-FOOBAR-" == "foobar-FooBar-".replaceAll("(([fF][oO]{2})[bB]ar)", { Object[] it -> it[0].toUpperCase() }) Here, it[0] is the global string of the matched group it[1] is the first string in the matched group it[2] is the second string in the matched group assert "FOO-FOO-" == "foobar-FooBar-".replaceAll("(([fF][oO]{2})[bB]ar)", { x, y, z -> z.toUpperCase() }) Here, x is the global string of the matched group y is the first string in the matched group z is the second string in the matched groupNote that unlike String.replaceAll(String regex, String replacement), where the replacement string treats '$' and '\' specially (for group substitution), the result of the closure is converted to a string and that value is used literally for the replacement.
self
- a Stringregex
- the capturing regexclosure
- the closure to apply on each captured groupPatternSyntaxException
- if the regular expression's syntax is invalidMatcher.quoteReplacement(String)
,
replaceAll(String, java.util.regex.Pattern, groovy.lang.Closure)
public static String replaceFirst(CharSequence self, CharSequence regex, CharSequence replacement)
self
- a CharSequenceregex
- the capturing regexreplacement
- the capturing regexPatternSyntaxException
- if the regular expression's syntax is invalidString.replaceAll(String, String)
public static String replaceFirst(CharSequence self, CharSequence regex, Closure closure)
self
- a CharSequenceregex
- the capturing regexclosure
- the closure to apply on the first captured groupPatternSyntaxException
- if the regular expression's syntax is invalidreplaceFirst(String, String, groovy.lang.Closure)
public static CharSequence replaceFirst(CharSequence self, Pattern pattern, CharSequence replacement)
self
- the CharSequence that is to be matchedpattern
- the regex Pattern to which the CharSequence of interest is to be matchedreplacement
- the CharSequence to be substituted for the first matchreplaceFirst(String, java.util.regex.Pattern, String)
public static String replaceFirst(CharSequence self, Pattern pattern, Closure closure)
self
- a CharSequencepattern
- the capturing regex Patternclosure
- the closure to apply on the first captured groupreplaceFirst(String, java.util.regex.Pattern, groovy.lang.Closure)
public static String replaceFirst(String self, Pattern pattern, Closure closure)
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() }
self
- a Stringpattern
- the capturing regex Patternclosure
- the closure to apply on the first captured groupreplaceAll(String, java.util.regex.Pattern, groovy.lang.Closure)
public static String replaceFirst(String self, Pattern pattern, String replacement)
Note that backslashes (\) and dollar signs ($) in the
replacement string may cause the results to be different than if it were
being treated as a literal replacement string; see
Matcher.replaceFirst(java.lang.String)
.
Use Matcher.quoteReplacement(java.lang.String)
to suppress the special
meaning of these characters, if desired.
assert "foo".replaceFirst('o', 'X') == 'fXo'
self
- the string that is to be matchedpattern
- the regex Pattern to which the string of interest is to be matchedreplacement
- the string to be substituted for the first matchString.replaceFirst(String, String)
public static String replaceFirst(String self, String regex, Closure closure)
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() }
self
- a Stringregex
- the capturing regexclosure
- the closure to apply on the first captured groupPatternSyntaxException
- if the regular expression's syntax is invalidMatcher.quoteReplacement(String)
,
replaceFirst(String, java.util.regex.Pattern, groovy.lang.Closure)
public static CharSequence reverse(CharSequence self)
self
- a CharSequencereverse(String)
public static String reverse(String self)
self
- a StringStringBuilder.reverse()
public static void setIndex(Matcher matcher, int idx)
matcher
- a Matcheridx
- the index numberpublic static int size(CharSequence text)
size()
method for CharSequence
.text
- a CharSequencepublic static long size(Matcher self)
size()
method for Matcher
.self
- a matcher objectpublic static int size(String text)
size()
method for String
.text
- a Stringpublic static int size(StringBuffer buffer)
size()
method for StringBuffer
.buffer
- a StringBufferpublic static CharSequence[] split(CharSequence self)
self
- the CharSequence to splitsplit(String)
public static String[] split(GString self)
self
- the GString to splitsplit(String)
public static String[] split(String self)
self
- the string to splitpublic static <T> T splitEachLine(CharSequence self, CharSequence regex, Closure<T> closure) throws IOException
self
- a CharSequenceregex
- the delimiting regular expressionclosure
- a closureIOException
- if an error occursPatternSyntaxException
- if the regular expression's syntax is invalidsplitEachLine(String, String, groovy.lang.Closure)
public static <T> T splitEachLine(CharSequence self, Pattern pattern, Closure<T> closure) throws IOException
self
- a CharSequencepattern
- the regular expression Pattern for the delimiterclosure
- a closureIOException
- if an error occurssplitEachLine(String, java.util.regex.Pattern, groovy.lang.Closure)
public static <T> T splitEachLine(String self, Pattern pattern, Closure<T> closure) throws IOException
self
- a Stringpattern
- the regular expression Pattern for the delimiterclosure
- a closureIOException
- if an error occursPattern.split(CharSequence)
public static <T> T splitEachLine(String self, String regex, Closure<T> closure) throws IOException
self
- a Stringregex
- the delimiting regular expressionclosure
- a closureIOException
- if an error occursPatternSyntaxException
- if the regular expression's syntax is invalidString.split(String)
public static CharSequence stripIndent(CharSequence self)
self
- The CharSequence to strip the leading spaces fromstripIndent(String)
public static CharSequence stripIndent(CharSequence self, int numChars)
self
- The CharSequence to strip the characters fromnumChars
- The number of characters to strippublic static String stripIndent(String self)
assert ' A\n B\nC' == ' A\n B\n C'.stripIndent()
self
- The String to strip the leading spaces fromstripIndent(String, int)
public static String stripIndent(String self, int numChars)
assert 'DEF\n456' == '''ABCDEF\n123456'''.stripIndent(3)
self
- The String to strip the characters fromnumChars
- The number of characters to strippublic static CharSequence stripMargin(CharSequence self)
self
- The CharSequence to strip the margin fromstripMargin(CharSequence, char)
public static CharSequence stripMargin(CharSequence self, char marginChar)
self
- The CharSequence to strip the margin frommarginChar
- Any character that serves as margin delimiterstripMargin(String, char)
public static String stripMargin(CharSequence self, CharSequence marginChar)
self
- The CharSequence to strip the margin frommarginChar
- Any character that serves as margin delimiterstripMargin(String, String)
public static String stripMargin(String self)
assert 'ABC\n123\n456' == '''ABC |123 |456'''.stripMargin()
self
- The String to strip the margin fromstripMargin(String, char)
public static String stripMargin(String self, char marginChar)
assert 'ABC\n123\n456' == '''ABC *123 *456'''.stripMargin('*')
self
- The String to strip the margin frommarginChar
- Any character that serves as margin delimiterpublic static String stripMargin(String self, String marginChar)
self
- The String to strip the margin frommarginChar
- Any character that serves as margin delimiterstripMargin(String, char)
public static CharSequence take(CharSequence self, int num)
num
elements from this CharSequence.
def text = "Groovy" assert text.take( 0 ) == '' assert text.take( 2 ) == 'Gr' assert text.take( 7 ) == 'Groovy'
self
- the original CharSequencenum
- the number of chars to take from this CharSequencenum
chars,
or else the whole CharSequence if it has less then num
elements.public static CharSequence takeWhile(CharSequence self, Closure condition)
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'
self
- the original CharSequencecondition
- the closure that must evaluate to true to continue taking elementspublic static BigDecimal toBigDecimal(CharSequence self)
self
- a CharSequencetoBigDecimal(String)
public static BigDecimal toBigDecimal(String self)
self
- a Stringpublic static BigInteger toBigInteger(CharSequence self)
self
- a CharSequencetoBigInteger(String)
public static BigInteger toBigInteger(String self)
self
- a Stringpublic static Boolean toBoolean(String self)
self
- a Stringpublic static Character toCharacter(String self)
self
- a Stringpublic static Double toDouble(CharSequence self)
self
- a CharSequencetoDouble(String)
public static Double toDouble(String self)
self
- a Stringpublic static Float toFloat(CharSequence self)
self
- a CharSequencetoFloat(String)
public static Float toFloat(String self)
self
- a Stringpublic static Integer toInteger(CharSequence self)
self
- a CharSequencetoInteger(String)
public static Integer toInteger(String self)
self
- a Stringpublic static List<CharSequence> tokenize(CharSequence self)
self
- a CharSequencetokenize(String)
public static List<CharSequence> tokenize(CharSequence self, Character token)
self
- a CharSequencetoken
- the delimitertokenize(String, Character)
public static List<CharSequence> tokenize(CharSequence self, CharSequence token)
self
- a CharSequencetoken
- the delimitertokenize(String, String)
public static List<String> tokenize(String self)
self
- a StringStringTokenizer.StringTokenizer(String)
public static List<String> tokenize(String self, Character token)
char pathSep = ':' assert "/tmp:/usr".tokenize(pathSep) == ["/tmp", "/usr"]
self
- a Stringtoken
- the delimiterStringTokenizer.StringTokenizer(String, String)
public static List<String> tokenize(String self, String token)
self
- a Stringtoken
- the delimiterStringTokenizer.StringTokenizer(String, String)
public static List<CharSequence> toList(CharSequence self)
self
- a CharSequencetoSet(String)
public static List<String> toList(String self)
self
- a Stringpublic static Long toLong(CharSequence self)
self
- a CharSequencetoLong(String)
public static Long toLong(String self)
self
- a Stringpublic static Set<CharSequence> toSet(CharSequence self)
self
- a CharSequencetoSet(String)
public static Set<String> toSet(String self)
Example usage:
assert 'groovy'.toSet() == ['v', 'g', 'r', 'o', 'y'] as Set assert "abc".toSet().iterator()[0] instanceof String
self
- a Stringpublic static Short toShort(CharSequence self)
self
- a CharSequencetoShort(String)
public static Short toShort(String self)
self
- a Stringpublic static CharSequence tr(CharSequence self, CharSequence sourceSet, CharSequence replacementSet) throws ClassNotFoundException
self
- the CharSequence that is to be translatedsourceSet
- the set of characters to translate fromreplacementSet
- the set of replacement charactersClassNotFoundException
tr(String, String, String)
public static String tr(String self, String sourceSet, String replacementSet) throws ClassNotFoundException
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.
self
- the string that is to be translatedsourceSet
- the set of characters to translate fromreplacementSet
- the set of replacement charactersClassNotFoundException
StringUtil.tr(String, String, String)
public static CharSequence unexpand(CharSequence self)
self
- A CharSequence to unexpandunexpand(String)
public static CharSequence unexpand(CharSequence self, int tabStop)
self
- A CharSequence to unexpandtabStop
- The number of spaces a tab representsunexpand(String, int)
public static String unexpand(String self)
self
- A String to unexpandunexpand(String, int)
public static String unexpand(String self, int tabStop)
self
- A String to unexpandtabStop
- The number of spaces a tab representspublic static CharSequence unexpandLine(CharSequence self, int tabStop)
self
- A line to unexpandtabStop
- The number of spaces a tab representsunexpandLine(String, int)