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## net.htmlparser.jericho
Class Config

    java.lang.Object
      Config

    public final class Config

extends java.lang.Object

Encapsulates global configuration properties which determine the behaviour of various functions.

All of the properties in this class are static, affecting all objects and threads. Multiple concurrent configurations are not possible.

Properties that relate to user agent compatibility issues are stored in instances of the `Config.CompatibilityMode` class. This allows all of the properties in the compatibility mode to be set as a block by setting the static `CurrentCompatibilityMode` property to a different instance.

See Also:
  `Config.CompatibilityMode`

Nested Class Summary
`static class` | `Config.CompatibilityMode` Represents a set of configuration parameters that relate to user agent compatibility issues.

Field Summary
`static java.lang.String` | `ColumnMultipleValueSeparator` Determines the string used to separate a single column's multiple values in the output of the `FormFields.getColumnValues(Map)` method.
`static java.lang.String` | `ColumnValueFalse` Determines the string that represents the value `false` in the output of the `FormFields.getColumnValues(Map)` method.
`static java.lang.String` | `ColumnValueTrue` Determines the string that represents the value `true` in the output of the `FormFields.getColumnValues(Map)` method.
`static boolean` | `ConvertNonBreakingSpaces` Determines whether the `CharacterReference.decode(CharSequence)` and similar methods convert non-breaking space (`&nbsp;`) character references to normal spaces.
`static Config.CompatibilityMode` | `CurrentCompatibilityMode` Determines the currently active compatibility mode.
`static boolean` | `IsApostropheEncoded` Determines whether apostrophes are encoded when calling the `CharacterReference.encode(CharSequence)` method.
`static boolean` | `IsHTMLEmptyElementTagRecognised` Determines whether all empty-element tags are recognised.
`static LoggerProvider` | `LoggerProvider` Determines the `LoggerProvider` that is used to create the default `Logger` object for each new `Source` object.
`static java.lang.String` | `NewLine` Determines the string used to represent a newline in text output throughout the library.

Method Summary

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

Field Detail

### ColumnMultipleValueSeparator

    public static java.lang.String ColumnMultipleValueSeparator

  Determines the string used to separate a single column's multiple values in the output of the `FormFields.getColumnValues(Map)` method.

  The situation where a single column has multiple values only arises if `FormField.getUserValueCount()``>1` on the relevant form field, which usually indicates a poorly designed form.

  The default value is "`,`" (a comma, not including the quotes).

  Must not be `null`.

### ColumnValueTrue

    public static java.lang.String ColumnValueTrue

  Determines the string that represents the value `true` in the output of the `FormFields.getColumnValues(Map)` method.

  The default value is "`true`" (without the quotes).

  Must not be `null`.

### ColumnValueFalse

    public static java.lang.String ColumnValueFalse

  Determines the string that represents the value `false` in the output of the `FormFields.getColumnValues(Map)` method.

  The default value is `null`, which represents no output at all.

### ConvertNonBreakingSpaces

    public static boolean ConvertNonBreakingSpaces

  Determines whether the `CharacterReference.decode(CharSequence)` and similar methods convert non-breaking space (`&nbsp;`) character references to normal spaces.

  The default value is `true`.

  When this property is set to `false`, non-breaking space (`&nbsp;`) character references are decoded as non-breaking space characters (U+00A0) instead of being converted to normal spaces (U+0020).

  The default behaviour of the library reflects the fact that non-breaking space character references are almost always used in HTML documents as a non-collapsing white space character. Converting them to the correct character code U+00A0, which is represented by a visible character in many older character sets, was confusing to most users who expected to see only normal spaces. The most common example of this is its visualisation as the character á in the MS-DOS CP437 character set.

  The functionality of the following methods is affected:

  - `CharacterReference.appendCharTo(Appendable)`
  - `CharacterReference.decode(CharSequence)`
  - `CharacterReference.decode(CharSequence, boolean insideAttributeValue)`
  - `CharacterReference.decodeCollapseWhiteSpace(CharSequence)`
  - `CharacterReference.reencode(CharSequence)`
  - `Attribute.getValue()`
  - `Attributes.getValue(String name)`
  - `Attributes.populateMap(Map, boolean convertNamesToLowerCase)`
  - `StartTag.getAttributeValue(String attributeName)`
  - `Element.getAttributeValue(String attributeName)`
  - `FormControl.getPredefinedValues()`
  - `OutputDocument.replace(Attributes, boolean convertNamesToLowerCase)`
  - `Renderer.getConvertNonBreakingSpaces()`
  - `TextExtractor.getConvertNonBreakingSpaces()`

### CurrentCompatibilityMode

    public static Config.CompatibilityMode CurrentCompatibilityMode

  Determines the currently active compatibility mode.

  The default setting is `Config.CompatibilityMode.IE` (MS Internet Explorer 6.0).

  Must not be `null`.

### IsApostropheEncoded

    public static boolean IsApostropheEncoded

  Determines whether apostrophes are encoded when calling the `CharacterReference.encode(CharSequence)` method.

  A value of `false` means apostrophe (U+0027) characters are not encoded. The only time apostrophes need to be encoded is within an attribute value delimited by single quotes (apostrophes), so in most cases ignoring apostrophes is perfectly safe and enhances the readability of the source document.

  Note that apostrophes are always encoded as a numeric character reference, never as the character entity reference `&apos;`.

  The default value is `false`.

### IsHTMLEmptyElementTagRecognised

    public static boolean IsHTMLEmptyElementTagRecognised

  Determines whether all empty-element tags are recognised.

  The major browsers do not recognise empty-element tags (those having the characters "/>" at the end of the start tag) if the element is defined by the HTML specification to have a required or an optional end tag. This is the case even in XHTML documents, which can cause a lot of confusion.

  Setting this property to `true` forces the parser to recognise all syntactical empty-element tags, regardless of whether the element is defined by the HTML specification to have a required or optional end tag.

  Use of this feature is however not recommended as it makes the parser behaviour inconsistent with that of most browsers.

  The default value is `false`.

  See Also:
    `StartTag.isEmptyElementTag()`

### LoggerProvider

    public static LoggerProvider LoggerProvider

  Determines the `LoggerProvider` that is used to create the default `Logger` object for each new `Source` object.

  The `LoggerProvider` interface contains several predefined `LoggerProvider` instances which this property can be set to, mostly representing wrappers to common logging frameworks.

  The default value is `null`, which results in the auto-detection of the most appropriate logging mechanism according to the following algorithm:

  1. If the class `org.slf4j.impl.StaticLoggerBinder` is detected:
     - If the class `org.slf4j.impl.JDK14LoggerFactory` is detected, use `LoggerProvider.JAVA`.
     - If the class `org.slf4j.impl.Log4jLoggerFactory` is detected, use `LoggerProvider.LOG4J`.
     - If the class `org.slf4j.impl.JCLLoggerFactory` is NOT detected, use `LoggerProvider.SLF4J`.
  2. If the class `org.apache.commons.logging.Log` is detected:

     > Create an instance of it using the commons-logging `LogFactory` class.
     > - If the created `Log` is of type `org.apache.commons.logging.impl.Jdk14Logger`, use `LoggerProvider.JAVA`.
     > - If the created `Log` is of type `org.apache.commons.logging.impl.Log4JLogger`, use `LoggerProvider.LOG4J`.
     > - otherwise, use `LoggerProvider.JCL`.

  3. If the class `org.apache.log4j.Logger` is detected, use `LoggerProvider.LOG4J`.
  4. otherwise, use `LoggerProvider.JAVA`.

  See Also:
    `Source.setLogger(Logger)`

### NewLine

    public static java.lang.String NewLine

  Determines the string used to represent a newline in text output throughout the library.

  The default value is the standard new line character sequence of the host platform, determined by `System.getProperty("line.separator")`.

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