As with all other identifiers, constants are not case sensitive. For example, false, False, and FALSE are all treated as the same constant.
Constants defined by AppleScript
| Identifier | Meaning |
| Attributes specified in Considering and Ignoring statements |
application
responses | If ignored, AppleScript doesn't wait for responses from application commands before proceeding to the next statement in a script and ignores any results or errors returned. |
| |
| case | If considered, AppleScript distinguishes uppercase letters from lowercase. |
| diacriticals | If ignored, AppleScript ignores diacritical marks in
string comparisons. |
| expansion | If ignored, AppleScript treats the characters æ, -->, ì, and ë as single characters and thus not equal to the character pairs ae, AE, oe, and OE. |
| hyphens | If ignored, AppleScript ignores hyphens in string comparisons |
| punctuation | If ignored, AppleScript ignores punctuation marks in string comparisons. |
| white space | If ignored, AppleScript ignores spaces, tab characters, and return characters in string comparisons. |
| Text styles |
| all caps | All caps |
| all lowercase | All lowercase |
| bold | Boldface |
| condensed | Condensed |
| expanded | Expanded |
| hidden | Hidden |
| italic | Italic |
| outline | Outline |
| plain | Plain text |
| shadow | Shadow |
| small caps | Small caps |
| strikethrough | Strikethrough |
| subscript | Subscript |
| |
| superscript | Superscript |
| underline | Underline |
| Save options |
| ask | Ask user whether to save modified object or objects. |
| no | Don't save modified object or objects. |
| yes | Save modified object or objects. |
| Alignment |
| center | Centered |
| full | Justified |
| left | Flush left |
| right | Flush right |
| Boolean constants |
| false | The Boolean false value. |
| true | The Boolean true value. |
| Miscellaneous | |
current
application | Either the default target application or whatever application is currently set as a script's parent property. |
