Search Syntax Using Lucene Or

This follows a boosted phrase based search process that supports wild cards.

Search Features

• The wild card character * is supported and repesents 0 or more sequential characters, such as wor*.
• The wild card character ? is supported and represents a single character, such as wo?d.
• The fuzzy search character ~ is supported and represents , such as roam (which matches words like roams, foam, and foams).
• Use + or - to denote mandatory or prohibited matches of a given phrase.
• Use quotes to group phrases for more precise matching, such as "word1 word2".
• Searches are case-insensitive such that upper and lower case letters are treated as indistinguishable, except for AND, OR, and NOT special use words.
• Each space separated word or phrase is automatically combined using an OR condition except when the following word or phrase does not have a leading + or - or except when AND is explicitly specified between words.
• Explicitly add either the word AND (all upper-case) or the word OR (all upper-case) between each space separated word to override the default combining condition.
• Explicitly add NOT (all upper-case) to exclude a word or phrase just like the - character.
• Trailing punctuation is generally ignored when matching and can be omitted (for example, Center, and Center should be treated as the same search).
• Adding ^ followed by a decimal number (called a boost) to a word or phrase, such as word1^0.4 word2^5.3 allows for specifying priorties on how matching where the higher the number then the higher the priority.
• The following characters may have special meaning and may need to be escaped for literal matching using the escape character \: + - && || ! ( ) { } [ ] ^ " ~ * ? : / \.

Examples

Consider the following titles:

• My Apple
• My Red Apple
• Red Apple
• Blue Apple
• My Orange
• Yellow Banana
• My red hat is covering up an apple.

Using a search of my apple should produce:

• My Apple
• My Red Apple
• Red Apple
• Blue Apple
• My Orange
• My red hat is covering up an apple.

Using a search of my^2.0 apple^1.0 should produce:

• My Apple
• My Red Apple
• My red hat is covering up an apple.
• My Orange
• Red Apple
• Blue Apple

Using a search of "my apple" should produce:

• My Apple

Using a search of +my apple should produce:

• My Apple
• My Red Apple
• Red Apple
• Blue Apple
• My Orange
• My red hat is covering up an apple.

Using a search of +my +apple should produce:

• My Apple
• My Red Apple
• My red hat is covering up an apple.

Using a search of +my -red +apple should produce:

• My Apple

Using a search of +my +red -apple should produce:

• no results

Using a search of +my -red -apple should produce:

• My Orange

Using a search of -apple should produce:

• My Orange
• Yellow Banana

Using a search of "red apple" should produce:

• My Red Apple
• Red Apple