 |
| Table 23: Boolean Guidelines |
|
| Standard Syntax |
Meaning |
Alternative Syntax |
If Not Supported |
| AND |
both required |
+ |
ignored |
| OR |
either required |
blank |
all support |
| AND NOT |
exclude following |
-, BUT NOT, NOT |
ignored |
| NEAR |
required within set word distance |
ADJ |
ignored |
| BEFORE |
first required before within distance |
ignored |
| AFTER |
first required after within distance |
ignored |
| ( ) |
ignored |
| " " |
treat as phrase |
checkbox option |
| * |
stem word |
checkbox option |
ignored |
|
|
|
