| ^ | Start of string, or start of line in multi-line pattern |
| \A | Start of string |
| $ | End of string, or end of line in multi-line pattern |
| \Z | End of string |
| \b | Word boundary |
| \B | Not word boundary |
| \< | Start of word |
| \> | End of word |
| ^ | Start of string, or start of line in multi-line pattern |
| \A | Start of string |
| $ | End of string, or end of line in multi-line pattern |
| \Z | End of string |
| \b | Word boundary |
| \B | Not word boundary |
| \< | Start of word |
| \> | End of word |