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| <h1>BNF syntax</h1> | |
| <p>On several occasions in this documentation, we'll be using a formalism to explain XLIA syntax and grammar. This formalism is inspired by the BNF i.e. Backus-Naur Form.</p> | |
| <p>Symbols for the grammar meta-language are in orange : </p> | |
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| <li>brackets [ ] surround optional elements,</li> | |
| <li>+ means that the preceding expression (possibly between parentheses) can be repeated one or several times,</li> | |
| <li>* that it can be repeated any number of times (including none)</li> | |
| <li></li> | |
| </ul> | |
| <p>Terminal symbols i.e. language keywords, are in red, and non-terminals in green.</p> | |
| <p>In black are variable names and standard non-terminals (e.g. statement, expression) that will not be recalled in this document.</p> | |
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