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Refine unicode-xid-ident feature writeup.

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Stephen Chung
2020-07-29 13:57:17 +08:00
parent eeb86f5efb
commit e2daba55d7
6 changed files with 37 additions and 31 deletions
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5
doc/src/language/variables.md
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@@ -21,6 +21,11 @@ Variable names are case _sensitive_.
Variable names also cannot be the same as a [keyword].
### Unicode Standard Annex #31 Identifiers
The [`unicode-xid-ident`] feature expands the allowed characters for variable names to the set defined by
[Unicode Standard Annex #31](http://www.unicode.org/reports/tr31/).
Declare a Variable
------------------

32
doc/src/start/features.md
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@@ -11,22 +11,22 @@ Notice that this deviates from Rust norm where features are _additive_.
Excluding unneeded functionalities can result in smaller, faster builds as well as
more control over what a script can (or cannot) do.
| Feature | Description |
| ------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `unchecked` | Disable arithmetic checking (such as over-flows and division by zero), call stack depth limit, operations count limit and modules loading limit.<br/>Beware that a bad script may panic the entire system! |
| `sync` | Restrict all values types to those that are `Send + Sync`. Under this feature, all Rhai types, including [`Engine`], [`Scope`] and [`AST`], are all `Send + Sync`. |
| `no_optimize` | Disable [script optimization]. |
| `no_float` | Disable floating-point numbers and math. |
| `only_i32` | Set the system integer type to `i32` and disable all other integer types. `INT` is set to `i32`. |
| `only_i64` | Set the system integer type to `i64` and disable all other integer types. `INT` is set to `i64`. |
| `no_index` | Disable [arrays] and indexing features. |
| `no_object` | Disable support for [custom types] and [object maps]. |
| `no_function` | Disable script-defined [functions]. |
| `no_module` | Disable loading external [modules]. |
| `no_std` | Build for `no-std`. Notice that additional dependencies will be pulled in to replace `std` features. |
| `serde` | Enable serialization/deserialization via `serde`. Notice that the [`serde`](https://crates.io/crates/serde) crate will be pulled in together with its dependencies. |
| `internals` | Expose internal data structures (e.g. [`AST`] nodes). Beware that Rhai internals are volatile and may change from version to version. |
| `unicode-xid-ident` | Allow unicode-xid for identifiers. |
| Feature | Description |
| ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `unchecked` | Disable arithmetic checking (such as over-flows and division by zero), call stack depth limit, operations count limit and modules loading limit.<br/>Beware that a bad script may panic the entire system! |
| `sync` | Restrict all values types to those that are `Send + Sync`. Under this feature, all Rhai types, including [`Engine`], [`Scope`] and [`AST`], are all `Send + Sync`. |
| `no_optimize` | Disable [script optimization]. |
| `no_float` | Disable floating-point numbers and math. |
| `only_i32` | Set the system integer type to `i32` and disable all other integer types. `INT` is set to `i32`. |
| `only_i64` | Set the system integer type to `i64` and disable all other integer types. `INT` is set to `i64`. |
| `no_index` | Disable [arrays] and indexing features. |
| `no_object` | Disable support for [custom types] and [object maps]. |
| `no_function` | Disable script-defined [functions]. |
| `no_module` | Disable loading external [modules]. |
| `no_std` | Build for `no-std`. Notice that additional dependencies will be pulled in to replace `std` features. |
| `serde` | Enable serialization/deserialization via `serde`. Notice that the [`serde`](https://crates.io/crates/serde) crate will be pulled in together with its dependencies. |
| `internals` | Expose internal data structures (e.g. [`AST`] nodes). Beware that Rhai internals are volatile and may change from version to version. |
| `unicode-xid-ident` | Allow [Unicode Standard Annex #31](http://www.unicode.org/reports/tr31/) as identifiers. |
Example