org.apache.commons.lang.text

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Java Source Code / Java Documentation » Open Source Library » Apache common lang » org.apache.commons.lang.text 
org.apache.commons.lang.text

Provides classes for handling and manipulating text, partly as an extension to {@link java.text}. The classes in this package are, for the most part, intended to be instantiated. (ie. they are not utility classes with lots of static methods)

@since 2.1
Java Source File NameTypeComment
CompositeFormat.javaClass Formats using one formatter and parses using a different formatter.
CompositeFormatTest.javaClass Unit tests for org.apache.commons.lang.text.CompositeFormat .
StrBuilder.javaClass Builds a string from constituent parts providing a more flexible and powerful API than StringBuffer.

The main differences from StringBuffer/StringBuilder are:

  • Not synchronized
  • Not final
  • Subclasses have direct access to character array
  • Additional methods
    • appendWithSeparators - adds an array of values, with a separator
    • appendPadding - adds a length padding characters
    • appendFixedLength - adds a fixed width field to the builder
    • toCharArray/getChars - simpler ways to get a range of the character array
    • delete - delete char or string
    • replace - search and replace for a char or string
    • leftString/rightString/midString - substring without exceptions
    • contains - whether the builder contains a char or string
    • size/clear/isEmpty - collections style API methods
  • Views
    • asTokenizer - uses the internal buffer as the source of a StrTokenizer
    • asReader - uses the internal buffer as the source of a Reader
    • asWriter - allows a Writer to write directly to the internal buffer

    • The aim has been to provide an API that mimics very closely what StringBuffer provides, but with additional methods.

    StrBuilderAppendInsertTest.javaClass Unit tests for org.apache.commons.lang.text.StrBuilder .
    StrBuilderTest.javaClass Unit tests for org.apache.commons.lang.text.StrBuilder .
    StrLookup.javaClass Lookup a String key to a String value.
    StrLookupTest.javaClass Test class for StrLookup.
    StrMatcher.javaClass A matcher class that can be queried to determine if a character array portion matches.
    StrMatcherTest.javaClass Unit tests for org.apache.commons.lang.text.StrMatcher .
    StrSubstitutor.javaClass Substitutes variables within a string by values.

    This class takes a piece of text and substitutes all the variables within it. The default definition of a variable is ${variableName}. The prefix and suffix can be changed via constructors and set methods.

    Variable values are typically resolved from a map, but could also be resolved from system properties, or by supplying a custom variable resolver.

    The simplest example is to use this class to replace Java System properties.

    StrSubstitutorTest.javaClass Test class for StrSubstitutor.
    StrTokenizer.javaClass Tokenizes a string based based on delimiters (separators) and supporting quoting and ignored character concepts.

    This class can split a String into many smaller strings.

    StrTokenizerTest.javaClass Unit test for Tokenizer.
    TextTestSuite.javaClass Test suite for the Text package.
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