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## org.apache.tools.ant.taskdefs
Class FixCRLF

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.Task
              org.apache.tools.ant.taskdefs.MatchingTask
                  org.apache.tools.ant.taskdefs.FixCRLF

All Implemented Interfaces:
  SelectorContainer

public class FixCRLF
extends MatchingTask

Converts text source files to local OS formatting conventions, as well as repair text files damaged by misconfigured or misguided editors or file transfer programs.

This task can take the following arguments:

- srcdir
- destdir
- include
- exclude
- cr
- eol
- tab
- eof
- encoding

Of these arguments, only sourcedir is required.

When this task executes, it will scan the srcdir based on the include and exclude properties.

This version generalises the handling of EOL characters, and allows for CR-only line endings (which I suspect is the standard on Macs.) Tab handling has also been generalised to accommodate any tabwidth from 2 to 80, inclusive. Importantly, it will leave untouched any literal TAB characters embedded within string or character constants.

Warning: do not run on binary files. Caution: run with care on carefully formatted files. This may sound obvious, but if you don't specify asis, presume that your files are going to be modified. If "tabs" is "add" or "remove", whitespace characters may be added or removed as necessary. Similarly, for CR's - in fact "eol"="crlf" or cr="add" can result in cr characters being removed in one special case accommodated, i.e., CRCRLF is regarded as a single EOL to handle cases where other programs have converted CRLF into CRCRLF.

Since:
  Ant 1.1
Version:
  $Revision: 1.37.2.4 $ $Name: $
Author:
  Sam Ruby rubys@us.ibm.com, Peter B. West

Nested Class Summary
`static class` | `FixCRLF.AddAsisRemove` Enumerated attribute with the values "asis", "add" and "remove".
`static class` | `FixCRLF.CrLf` Enumerated attribute with the values "asis", "cr", "lf" and "crlf".

Field Summary

Fields inherited from class org.apache.tools.ant.taskdefs.MatchingTask
`fileset, useDefaultExcludes`

Fields inherited from class org.apache.tools.ant.Task
`description, location, target, taskName, taskType, wrapper`

Fields inherited from class org.apache.tools.ant.ProjectComponent
`project`

Constructor Summary
`FixCRLF()` Defaults the properties based on the system type.

Method Summary
`void` | `execute()` Executes the task.
`void` | `setCr(FixCRLF.AddAsisRemove attr)` Deprecated. use `setEol` instead.
`void` | `setDestdir(java.io.File destDir)` Set the destination where the fixed files should be placed.
`void` | `setEncoding(java.lang.String encoding)` Specifies the encoding Ant expects the files to be in - defaults to the platforms default encoding.
`void` | `setEof(FixCRLF.AddAsisRemove attr)` Specify how DOS EOF (control-z) characters are to be handled.
`void` | `setEol(FixCRLF.CrLf attr)` Specify how EndOfLine characters are to be handled.
`void` | `setJavafiles(boolean javafiles)` Set to true if modifying Java source files.
`void` | `setSrcdir(java.io.File srcDir)` Set the source dir to find the source text files.
`void` | `setTab(FixCRLF.AddAsisRemove attr)` Specify how tab characters are to be handled.
`void` | `setTablength(int tlength)` Specify tab length in characters.

Methods inherited from class org.apache.tools.ant.taskdefs.MatchingTask
`addAnd, addContains, addCustom, addDate, addDepend, addDepth, addFilename, addMajority, addNone, addNot, addOr, addPresent, addSelector, addSize, appendSelector, createExclude, createExcludesFile, createInclude, createIncludesFile, createPatternSet, getDirectoryScanner, getImplicitFileSet, getSelectors, hasSelectors, selectorCount, selectorElements, setCaseSensitive, setDefaultexcludes, setExcludes, setExcludesfile, setFollowSymlinks, setIncludes, setIncludesfile, setProject, XsetIgnore, XsetItems`

Methods inherited from class org.apache.tools.ant.Task
`getDescription, getLocation, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, handleErrorFlush, handleErrorOutput, handleFlush, handleOutput, init, isInvalid, log, log, maybeConfigure, perform, setDescription, setLocation, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName`

Methods inherited from class org.apache.tools.ant.ProjectComponent
`getProject`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### FixCRLF

    public FixCRLF()

  Defaults the properties based on the system type.
  - Unix: eol="LF" tab="asis" eof="remove"
  - Mac: eol="CR" tab="asis" eof="remove"
  - DOS: eol="CRLF" tab="asis" eof="asis"

Method Detail

### setSrcdir

    public void setSrcdir(java.io.File srcDir)

  Set the source dir to find the source text files.

### setDestdir

    public void setDestdir(java.io.File destDir)

  Set the destination where the fixed files should be placed. Default is to replace the original file.

### setJavafiles

    public void setJavafiles(boolean javafiles)

  Set to true if modifying Java source files.

### setEol

    public void setEol(FixCRLF.CrLf attr)

  Specify how EndOfLine characters are to be handled.

  Parameters:
    `attr` - valid values:
    - asis: leave line endings alone
    - cr: convert line endings to CR
    - lf: convert line endings to LF
    - crlf: convert line endings to CRLF

### setCr

    public void setCr(FixCRLF.AddAsisRemove attr)

  Deprecated. use `setEol` instead.

  Specify how carriage return (CR) characters are to be handled.

### setTab

    public void setTab(FixCRLF.AddAsisRemove attr)

  Specify how tab characters are to be handled.

  Parameters:
    `attr` - valid values:
    - add: convert sequences of spaces which span a tab stop to tabs
    - asis: leave tab and space characters alone
    - remove: convert tabs to spaces

### setTablength

    public void setTablength(int tlength)
                      throws BuildException

  Specify tab length in characters.

  Parameters:
    `tlength` - specify the length of tab in spaces,
  Throws:
    `BuildException`

### setEof

    public void setEof(FixCRLF.AddAsisRemove attr)

  Specify how DOS EOF (control-z) characters are to be handled.

  Parameters:
    `attr` - valid values:
    - add: ensure that there is an eof at the end of the file
    - asis: leave eof characters alone
    - remove: remove any eof character found at the end

### setEncoding

    public void setEncoding(java.lang.String encoding)

  Specifies the encoding Ant expects the files to be in - defaults to the platforms default encoding.

### execute

    public void execute()
                 throws BuildException

  Executes the task.

  Overrides:
    `execute` in class `Task`
  Throws:
    `BuildException` - if something goes wrong with the build

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