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|
-----------------------------
# 0: Basic DSL Rules.
-----------------------------
## Comments and Pragmas
- **Comments**: Lines starting with `#` followed by text are treated as comments or pragmas
```lcp
# This is a comment
```
- **Pragma directives**: Lines starting with `# --` are pragma directives
```lcp
# --pragma-test # Marks file as test
# --test-list-apps # Defines a test case
# --test-start # Defines a start test case
```
## Iteration
- **For loops**: Iterate over collections using begin/end iterator pairs
```lcp
for <iterator>: (<begin>, <end>) {
<body>
}
```
Example:
```lcp
for it: (apps.begin, apps.end) {
it.print();
}
```
- **Iterator methods**: Iterators support method calls using dot notation
```lcp
it.print(); # Call print method on iterator
```
## Event Handlers
- **When statements**: Define event handlers triggered by specific events
```lcp
when <event>: (<arguments>) {
<body>
}
```
Example:
```lcp
when start: (apps) {
it (apps);
}
```
## Collections
- **Collection access**: Collections provide `.begin` and `.end` properties for iteration
```lcp
apps.begin # Start iterator
apps.end # End iterator
```
## Syntax Rules
- **Whitespace**: Indentation is used for readability but not syntactically significant
- **Blocks**: Code blocks are delimited by curly braces `{ }`
- **Statements**: End with semicolon `;` or newline
- **Parentheses**: Used for grouping arguments and parameters
- **Colon**: Separates declaration from parameters in control structures
## Identifiers
- **Naming**: Identifiers can contain letters, numbers, and underscores
- **Case sensitivity**: Identifiers are case-sensitive
- **Reserved keywords**: `for`, `when`, `it`
## Types
- **Collections**: `apps` (application collection)
- **Iterators**: Created via `for` loops or explicit `it()` constructor
- **Events**: `start` (startup event)
|
