# Package org.apache.tools.ant.filters

- Interface Summary
  Interface | Description
  --- | ---
  ChainableReader | Interface indicating that a reader may be chained to another one.
  TokenFilter.Filter | string filters implement this interface

- Class Summary
  Class | Description
  --- | ---
  BaseFilterReader | Base class for core filter readers.
  BaseParamFilterReader | Parameterized base class for core filter readers.
  ClassConstants | Assembles the constants declared in a Java class in `key1=value1(line separator)key2=value2` format.
  ConcatFilter | Concats a file before and/or after the file.
  EscapeUnicode | This method converts non-latin characters to unicode escapes.
  ExpandProperties | Expands Ant properties, if any, in the data.
  FixCrLfFilter | Converts text to local OS formatting conventions, as well as repair text damaged by misconfigured or misguided editors or file transfer programs.
  FixCrLfFilter.AddAsisRemove | Enumerated attribute with the values "asis", "add" and "remove".
  FixCrLfFilter.CrLf | Enumerated attribute with the values "asis", "cr", "lf" and "crlf".
  HeadFilter | Reads the first `n` lines of a stream.
  LineContains | Filter which includes only those lines that contain all the user-specified strings.
  LineContains.Contains | Holds a contains element
  LineContainsRegExp | Filter which includes only those lines that contain the user-specified regular expression matching strings.
  Native2AsciiFilter | A filter that performs translations from characters to their Unicode-escape sequences and vice-versa.
  PrefixLines | Attaches a prefix to every line.
  ReplaceTokens | Replaces tokens in the original input with user-supplied values.
  ReplaceTokens.Token | Holds a token
  SortFilter | Sort a file before and/or after the file.
  StringInputStream | Wraps a String as an InputStream.
  StripJavaComments | This is a Java comment and string stripper reader that filters those lexical tokens out for purposes of simple Java parsing.
  StripLineBreaks | Filter to flatten the stream to a single line.
  StripLineComments | This filter strips line comments.
  StripLineComments.Comment | The class that holds a comment representation.
  SuffixLines | Attaches a suffix to every line.
  TabsToSpaces | Converts tabs to spaces.
  TailFilter | Reads the last `n` lines of a stream.
  TokenFilter | This splits up input into tokens and passes the tokens to a sequence of filters.
  TokenFilter.ChainableReaderFilter | Abstract class that converts derived filter classes into ChainableReaderFilter's
  TokenFilter.ContainsRegex | filter to filter tokens matching regular expressions.
  TokenFilter.ContainsString | Simple filter to filter lines contains strings
  TokenFilter.DeleteCharacters | Filter to delete characters
  TokenFilter.FileTokenizer | class to read the complete input into a string
  TokenFilter.IgnoreBlank | Filter remove empty tokens
  TokenFilter.ReplaceRegex | filter to replace regex.
  TokenFilter.ReplaceString | Simple replace string filter.
  TokenFilter.StringTokenizer | class to tokenize the input as areas separated by white space, or by a specified list of delim characters.
  TokenFilter.Trim | Filter to trim white space
  UniqFilter | Like the Unix uniq(1) command, only returns tokens that are different from their ancestor token.