Class DictionaryExtensions

Inheritance
System.Object
DictionaryExtensions
Namespace: Lucene.Net.Support
Assembly: Lucene.Net.dll
Syntax
public static class DictionaryExtensions : object

Methods

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Load(IDictionary<String, String>, Stream)

Loads properties from the specified . The encoding is ISO8859-1.

Declaration
public static void Load(this IDictionary<string, string> dict, Stream input)
Parameters
Type Name Description
IDictionary<System.String, System.String> dict

This dictionary.
Stream input

The .
Remarks

The Properties file is interpreted according to the following rules:

  • Empty lines are ignored.
  • Lines starting with either a "#" or a "!" are comment lines and are ignored.
  • A backslash at the end of the line escapes the following newline character ("\r", "\n", "\r\n"). If there's a whitespace after the backslash it will just escape that whitespace instead of concatenating the lines. This does not apply to comment lines.
  • A property line consists of the key, the space between the key and the value, and the value. The key goes up to the first whitespace, "=" or ":" that is not escaped. The space between the key and the value contains either one whitespace, one "=" or one ":" and any number of additional whitespaces before and after that character. The value starts with the first character after the space between the key and the value.
  • Following escape sequences are recognized: "\ ", "\", "\r", "\n", "!", "#", "\t", "\b", "\f", and "\uXXXX" (unicode character).

This method is to mimic and interoperate with the Properties class in Java, which is essentially a string dictionary that natively supports importing and exporting to this format.

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Put<TKey, TValue>(IDictionary<TKey, TValue>, TKey, TValue)

Declaration
public static TValue Put<TKey, TValue>(this IDictionary<TKey, TValue> dict, TKey key, TValue value)
Parameters
Type Name Description
IDictionary<TKey, TValue> dict
TKey key
TValue value
Returns
Type Description
TValue
Type Parameters
Name Description
TKey
TValue
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PutAll<TKey, TValue>(IDictionary<TKey, TValue>, IEnumerable<KeyValuePair<TKey, TValue>>)

Declaration
public static void PutAll<TKey, TValue>(this IDictionary<TKey, TValue> dict, IEnumerable<KeyValuePair<TKey, TValue>> kvps)
Parameters
Type Name Description
IDictionary<TKey, TValue> dict
IEnumerable<KeyValuePair<TKey, TValue>> kvps
Type Parameters
Name Description
TKey
TValue
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Store(IDictionary<String, String>, Stream, String)

Stores the mappings in this Properties to the specified , putting the specified comment at the beginning. The output from this method is suitable for being read by the Load(IDictionary<String, String>, Stream) method.

Declaration
public static void Store(this IDictionary<string, string> dict, Stream output, string comments)
Parameters
Type Name Description
IDictionary<System.String, System.String> dict

This dictionary.
Stream output

The output to write to.
System.String comments

The comments to put at the beginning.