|
 Syntax Notation Contents Index |
| ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ |
| How to Read On-line Help Syntax Notation |
|
| KEYWORDS Items in capital letters indicate BASIC keywords. |
| Keywords are a required part of the statement syntax, |
| unless they are enclosed in brackets. You must spell |
| keywords correctly. |
| placeholders Items in lowercase are placeholders for information |
| you must supply in the statement, such as a filename. |
| [optional item] Items inside square brackets do not need to be used |
| in the statement. |
| {choice1 | choice2} Braces and a vertical bar indicate a choice between |
| two or more items. You must use one of the items in |
| the statement unless the braces are enclosed in |
| square brackets. |
| |
| IMPORTANT: The uppercase and lowercase syntax notation conventions are |
| used to help you read the syntax rules for a statement, and |
| are NOT capitalization rules you must type in. |
| |
| One other notation convention that is used is the three-dot ellipsis: |
| |
| item, item, ... Means more of the preceding items can be used |
| in a single-line statement. |
| beginning KEYWORD |
| . used to describe multi-line statements |
| . (or block-structured statements). Means |
| . that other statements can be used between |
| ending KEYWORD the beginning and the end of the block. |
| |
| |
| Here is an example of using the PRINT command syntax: |
| |
| Syntax: |
| PRINT [expressionlist][{,|;}] |
| |
| Given the syntax rule above, these are all syntactically correct |
| PRINT statements: |
| PRINT |
| PRINT x |
| PRINT x, y + 1 |
| PRINT x, |
| PRINT x; |
| PRINT x + y + z, a - 1, b / 2; |
| |
| And there are many, many more. |
