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22
README.md
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@ -22,24 +22,24 @@ Features
--------
* Easy-to-use language similar to JS+Rust with dynamic typing.
* Tight integration with native Rust [functions](https://schungx.github.io/rust/functions.html) and [types]([#custom-types-and-methods](https://schungx.github.io/rust/custom.html)), including [getters/setters](https://schungx.github.io/rust/getters-setters.html), [methods](https://schungx.github.io/rust/custom.html) and [indexers](https://schungx.github.io/rust/indexers.html).
* Freely pass Rust variables/constants into a script via an external [`Scope`](https://schungx.github.io/rust/scope.html).
* Easily [call a script-defined function](https://schungx.github.io/engine/call-fn.html) from Rust.
* Tight integration with native Rust [functions](https://schungx.github.io/rhai/rust/functions.html) and [types]([#custom-types-and-methods](https://schungx.github.io/rhai/rust/custom.html)), including [getters/setters](https://schungx.github.io/rhai/rust/getters-setters.html), [methods](https://schungx.github.io/rhai/rust/custom.html) and [indexers](https://schungx.github.io/rhai/rust/indexers.html).
* Freely pass Rust variables/constants into a script via an external [`Scope`](https://schungx.github.io/rhai/rust/scope.html).
* Easily [call a script-defined function](https://schungx.github.io/rhai/engine/call-fn.html) from Rust.
* Fairly low compile-time overhead.
* Fairly efficient evaluation (1 million iterations in 0.25 sec on a single core, 2.3 GHz Linux VM).
* Relatively little `unsafe` code (yes there are some for performance reasons, and most `unsafe` code is limited to
one single source file, all with names starting with `"unsafe_"`).
* Re-entrant scripting engine can be made `Send + Sync` (via the [`sync`] feature).
* Sand-boxed - the scripting engine, if declared immutable, cannot mutate the containing environment unless explicitly permitted (e.g. via a `RefCell`).
* Rugged - protection against malicious attacks (such as [stack-overflow](https://schungx.github.io/safety/max-call-stack.html), [over-sized data](https://schungx.github.io/safety/max-string-size.html), and [runaway scripts](https://schungx.github.io/safety/max-operations.html) etc.) that may come from untrusted third-party user-land scripts.
* Track script evaluation [progress](https://schungx.github.io/safety/progress.html) and manually terminate a script run.
* [Function overloading](https://schungx.github.io/language/overload.html).
* [Operator overloading](https://schungx.github.io/rust/operators.html).
* Organize code base with dynamically-loadable [modules](https://schungx.github.io/language/modules.html).
* Scripts are [optimized](https://schungx.github.io/engine/optimize.html) (useful for template-based machine-generated scripts) for repeated evaluations.
* Support for [minimal builds](https://schungx.github.io/start/builds/minimal.html) by excluding unneeded language [features](https://schungx.github.io/start/features.html).
* Rugged - protection against malicious attacks (such as [stack-overflow](https://schungx.github.io/rhai/safety/max-call-stack.html), [over-sized data](https://schungx.github.io/rhai/safety/max-string-size.html), and [runaway scripts](https://schungx.github.io/rhai/safety/max-operations.html) etc.) that may come from untrusted third-party user-land scripts.
* Track script evaluation [progress](https://schungx.github.io/rhai/safety/progress.html) and manually terminate a script run.
* [Function overloading](https://schungx.github.io/rhai/language/overload.html).
* [Operator overloading](https://schungx.github.io/rhai/rust/operators.html).
* Organize code base with dynamically-loadable [modules](https://schungx.github.io/rhai/language/modules.html).
* Scripts are [optimized](https://schungx.github.io/rhai/engine/optimize.html) (useful for template-based machine-generated scripts) for repeated evaluations.
* Support for [minimal builds](https://schungx.github.io/rhai/start/builds/minimal.html) by excluding unneeded language [features](https://schungx.github.io/rhai/start/features.html).
Documentation
-------------
See [The Rhai Book](https://schungx.github.io/rhai/) for details on the Rhai script engine and language.
See [The Rhai Book](https://schungx.github.io/rhai) for details on the Rhai script engine and language.

4
doc/book.toml
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@ -6,7 +6,11 @@ language = "en"
[output.html]
no-section-label = true
git-repository-url = "https://github.com/jonathandturner/rhai"
[output.html.fold]
enable = true
level = 4
[preprocessor.tera]
command = "mdbook-tera --json ./src/context.json"

12
doc/src/about/features.md
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@ -8,11 +8,11 @@ Easy
* Easy-to-use language similar to JS+Rust with dynamic typing.
* Tight integration with native Rust [functions](/rust/functions.md) and [types](/rust/custom.md), including [getters/setters](/rust/getters-setters.md), [methods](/rust/custom.md) and [indexers](/rust/indexers.md).
* Tight integration with native Rust [functions]({{rootUrl}}/rust/functions.md) and [types]({{rootUrl}}/rust/custom.md), including [getters/setters]({{rootUrl}}/rust/getters-setters.md), [methods]({{rootUrl}}/rust/custom.md) and [indexers]({{rootUrl}}/rust/indexers.md).
* Freely pass Rust variables/constants into a script via an external [`Scope`].
* Easily [call a script-defined function](/engine/call-fn.md) from Rust.
* Easily [call a script-defined function]({{rootUrl}}/engine/call-fn.md) from Rust.
* Very few additional dependencies (right now only [`num-traits`](https://crates.io/crates/num-traits/) to do checked arithmetic operations);
for [`no-std`] builds, a number of additional dependencies are pulled in to provide for functionalities that used to be in `std`.
@ -24,14 +24,14 @@ Fast
* Fairly efficient evaluation (1 million iterations in 0.25 sec on a single core, 2.3 GHz Linux VM).
* Scripts are [optimized](/engine/optimize.md) (useful for template-based machine-generated scripts) for repeated evaluations.
* Scripts are [optimized]({{rootUrl}}/engine/optimize.md) (useful for template-based machine-generated scripts) for repeated evaluations.
Dynamic
-------
* [Function overloading](/language/overload.md).
* [Function overloading]({{rootUrl}}/language/overload.md).
* [Operator overloading](/rust/operators.md).
* [Operator overloading]({{rootUrl}}/rust/operators.md).
* Organize code base with dynamically-loadable [modules].
@ -46,7 +46,7 @@ Rugged
* Sand-boxed - the scripting [`Engine`], if declared immutable, cannot mutate the containing environment unless explicitly permitted (e.g. via a `RefCell`).
* Protected against malicious attacks (such as [stack-overflow](/safety/max-call-stack.md), [over-sized data](/safety/max-string-size.md), and [runaway scripts](/safety/max-operations.md) etc.) that may come from untrusted third-party user-land scripts.
* Protected against malicious attacks (such as [stack-overflow]({{rootUrl}}/safety/max-call-stack.md), [over-sized data]({{rootUrl}}/safety/max-string-size.md), and [runaway scripts]({{rootUrl}}/safety/max-operations.md) etc.) that may come from untrusted third-party user-land scripts.
* Track script evaluation [progress] and manually terminate a script run.

34
doc/src/about/non-design.md
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@ -1 +1,33 @@
# What Rhai Doesn't Do
What Rhai Doesn't Do
====================
{{#include ../links.md}}
Rhai's purpose is to provide a dynamic layer over Rust code, in the same spirit of _zero cost abstractions_.
It doesn't attempt to be a new language. For example:
* No classes. Well, Rust doesn't either. On the other hand...
* No traits... so it is also not Rust. Do your Rusty stuff in Rust.
* No structures/records - define your types in Rust instead; Rhai can seamlessly work with _any Rust type_.
There is, however, a built-in [object map] type which is adequate for most uses.
* No first-class functions - Code your functions in Rust instead, and register them with Rhai.
* No garbage collection - this should be expected, so...
* No closures - do your closure magic in Rust instead; [turn a Rhai scripted function into a Rust closure]({{rootUrl}}/engine/call-fn.md).
* No byte-codes/JIT - Rhai has an AST-walking interpreter which will not win any speed races. The purpose of Rhai is not
to be extremely _fast_, but to make it as easy as possible to integrate with native Rust programs.
Due to this intended usage, Rhai deliberately keeps the language simple and small by omitting advanced language features
such as classes, inheritance, first-class functions, closures, concurrency, byte-codes, JIT etc.
Avoid the temptation to write full-fledge program logic entirely in Rhai - that use case is best fulfilled by
more complete languages such as JS or Lua.
Therefore, in actual practice, it is usually best to expose a Rust API into Rhai for scripts to call.
All your core functionalities should be in Rust.
This is similar to some dynamic languages where most of the core functionalities reside in a C/C++ standard library.

33
doc/src/about/non_design.md
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@ -1,33 +0,0 @@
What Rhai Doesn't Do
====================
{{#include ../links.md}}
Rhai's purpose is to provide a dynamic layer over Rust code, in the same spirit of _zero cost abstractions_.
It doesn't attempt to be a new language. For example:
* No classes. Well, Rust doesn't either. On the other hand...
* No traits... so it is also not Rust. Do your Rusty stuff in Rust.
* No structures/records - define your types in Rust instead; Rhai can seamlessly work with _any Rust type_.
There is, however, a built-in [object map] type which is adequate for most uses.
* No first-class functions - Code your functions in Rust instead, and register them with Rhai.
* No garbage collection - this should be expected, so...
* No closures - do your closure magic in Rust instead; [turn a Rhai scripted function into a Rust closure](/engine/call-fn.md).
* No byte-codes/JIT - Rhai has an AST-walking interpreter which will not win any speed races. The purpose of Rhai is not
to be extremely _fast_, but to make it as easy as possible to integrate with native Rust programs.
Due to this intended usage, Rhai deliberately keeps the language simple and small by omitting advanced language features
such as classes, inheritance, first-class functions, closures, concurrency, byte-codes, JIT etc.
Avoid the temptation to write full-fledge program logic entirely in Rhai - that use case is best fulfilled by
more complete languages such as JS or Lua.
Therefore, in actual practice, it is usually best to expose a Rust API into Rhai for scripts to call.
All your core functionalities should be in Rust.
This is similar to some dynamic languages where most of the core functionalities reside in a C/C++ standard library.

4
doc/src/context.json Normal file
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@ -0,0 +1,4 @@
{
"rootUrl": "",
"rootUrlX": "/rhai"
}

2
doc/src/language/arrays.md
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@ -22,7 +22,7 @@ The maximum allowed size of an array can be controlled via `Engine::set_max_arra
Built-in Functions
-----------------
The following methods (mostly defined in the [`BasicArrayPackage`](/rust/packages.md) but excluded if using a [raw `Engine`]) operate on arrays:
The following methods (mostly defined in the [`BasicArrayPackage`]({{rootUrl}}/rust/packages.md) but excluded if using a [raw `Engine`]) operate on arrays:
| Function | Parameter(s) | Description |
| ------------------------- | --------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- |

2
doc/src/language/eval.md
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@ -82,7 +82,7 @@ engine.register_result_fn("eval", alt_eval);
`EvalPackage`
-------------
There is even a package named [`EvalPackage`](/rust/packages.md) which implements the disabling override:
There is even a package named [`EvalPackage`]({{rootUrl}}/rust/packages.md) which implements the disabling override:
```rust
use rhai::Engine;

2
doc/src/language/modules/resolvers.md
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@ -5,7 +5,7 @@ Module Resolvers
When encountering an [`import`] statement, Rhai attempts to _resolve_ the module based on the path string.
_Module Resolvers_ are service types that implement the [`ModuleResolver`](/rust/traits.md) trait.
_Module Resolvers_ are service types that implement the [`ModuleResolver`]({{rootUrl}}/rust/traits.md) trait.
There are a number of standard resolvers built into Rhai, the default being the `FileModuleResolver`
which simply loads a script file based on the path (with `.rhai` extension attached) and execute it to form a module.

4
doc/src/language/num-fn.md
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@ -6,7 +6,7 @@ Numeric Functions
Integer Functions
----------------
The following standard functions (defined in the [`BasicMathPackage`](/rust/packages.md) but excluded if using a [raw `Engine`])
The following standard functions (defined in the [`BasicMathPackage`]({{rootUrl}}/rust/packages.md) but excluded if using a [raw `Engine`])
operate on `i8`, `i16`, `i32`, `i64`, `f32` and `f64` only:
| Function | Description |
@ -17,7 +17,7 @@ operate on `i8`, `i16`, `i32`, `i64`, `f32` and `f64` only:
Floating-Point Functions
-----------------------
The following standard functions (defined in the [`BasicMathPackage`](/rust/packages.md) but excluded if using a [raw `Engine`])
The following standard functions (defined in the [`BasicMathPackage`]({{rootUrl}}/rust/packages.md) but excluded if using a [raw `Engine`])
operate on `f64` only:
| Category | Functions |

2
doc/src/language/object-maps.md
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@ -39,7 +39,7 @@ The index notation allows setting/getting properties of arbitrary names (even th
Built-in Functions
-----------------
The following methods (defined in the [`BasicMapPackage`](/rust/packages.md) but excluded if using a [raw `Engine`])
The following methods (defined in the [`BasicMapPackage`]({{rootUrl}}/rust/packages.md) but excluded if using a [raw `Engine`])
operate on object maps:
| Function | Parameter(s) | Description |

2
doc/src/language/string-fn.md
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@ -3,7 +3,7 @@ Built-in String Functions
{{#include ../links.md}}
The following standard methods (mostly defined in the [`MoreStringPackage`](/rust/packages.md) but excluded if
The following standard methods (mostly defined in the [`MoreStringPackage`]({{rootUrl}}/rust/packages.md) but excluded if
using a [raw `Engine`]) operate on [strings]:
| Function | Parameter(s) | Description |

2
doc/src/language/strings-chars.md
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@ -6,7 +6,7 @@ Strings and Characters
String in Rhai contain any text sequence of valid Unicode characters.
Internally strings are stored in UTF-8 encoding.
Strings can be built up from other strings and types via the `+` operator (provided by the [`MoreStringPackage`](/rust/packages.md)
Strings can be built up from other strings and types via the `+` operator (provided by the [`MoreStringPackage`]({{rootUrl}}/rust/packages.md)
but excluded if using a [raw `Engine`]). This is particularly useful when printing output.
[`type_of()`] a string returns `"string"`.

4
doc/src/language/timestamps.md
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@ -3,7 +3,7 @@
{{#include ../links.md}}
Timestamps are provided by the [`BasicTimePackage`](/rust/packages.md) (excluded if using a [raw `Engine`])
Timestamps are provided by the [`BasicTimePackage`]({{rootUrl}}/rust/packages.md) (excluded if using a [raw `Engine`])
via the `timestamp` function.
Timestamps are not available under [`no_std`].
@ -16,7 +16,7 @@ The Rust type of a timestamp is `std::time::Instant` ([`instant::Instant`](https
Built-in Functions
-----------------
The following methods (defined in the [`BasicTimePackage`](/rust/packages.md) but excluded if using a [raw `Engine`]) operate on timestamps:
The following methods (defined in the [`BasicTimePackage`]({{rootUrl}}/rust/packages.md) but excluded if using a [raw `Engine`]) operate on timestamps:
| Function | Parameter(s) | Description |
| ----------------------------- | ---------------------------------- | -------------------------------------------------------- |

4
doc/src/language/values-and-types.md
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@ -6,7 +6,7 @@ Values and Types
The following primitive types are supported natively:
| Category | Equivalent Rust types | [`type_of()`] | `to_string()` |
| ----------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | --------------------- | --------------------- |
| ------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | --------------------- | --------------------- |
| **Integer number** | `u8`, `i8`, `u16`, `i16`, <br/>`u32`, `i32` (default for [`only_i32`]),<br/>`u64`, `i64` _(default)_ | `"i32"`, `"u64"` etc. | `"42"`, `"123"` etc. |
| **Floating-point number** (disabled with [`no_float`]) | `f32`, `f64` _(default)_ | `"f32"` or `"f64"` | `"123.4567"` etc. |
| **Boolean value** | `bool` | `"bool"` | `"true"` or `"false"` |
@ -14,7 +14,7 @@ The following primitive types are supported natively:
| **Immutable Unicode string** | `rhai::ImmutableString` (implemented as `Rc<String>` or `Arc<String>`) | `"string"` | `"hello"` etc. |
| **Array** (disabled with [`no_index`]) | `rhai::Array` | `"array"` | `"[ ?, ?, ? ]"` |
| **Object map** (disabled with [`no_object`]) | `rhai::Map` | `"map"` | `#{ "a": 1, "b": 2 }` |
| **Timestamp** (implemented in the [`BasicTimePackage`](/rust/packages.md)) | `std::time::Instant` | `"timestamp"` | _not supported_ |
| **Timestamp** (implemented in the [`BasicTimePackage`]({{rootUrl}}/rust/packages.md)) | `std::time::Instant` | `"timestamp"` | _not supported_ |
| **Dynamic value** (i.e. can be anything) | `rhai::Dynamic` | _the actual type_ | _actual value_ |
| **System integer** (current configuration) | `rhai::INT` (`i32` or `i64`) | `"i32"` or `"i64"` | `"42"`, `"123"` etc. |
| **System floating-point** (current configuration, disabled with [`no_float`]) | `rhai::FLOAT` (`f32` or `f64`) | `"f32"` or `"f64"` | `"123.456"` etc. |

139
doc/src/links.md
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@ -1,87 +1,86 @@
[features]: /start/features.md
[`unchecked`]: /start/features.md
[`sync`]: /start/features.md
[`no_optimize`]: /start/features.md
[`no_float`]: /start/features.md
[`only_i32`]: /start/features.md
[`only_i64`]: /start/features.md
[`no_index`]: /start/features.md
[`no_object`]: /start/features.md
[`no_function`]: /start/features.md
[`no_module`]: /start/features.md
[`no_std`]: /start/features.md
[features]: {{rootUrl}}/start/features.md
[`unchecked`]: {{rootUrl}}/start/features.md
[`sync`]: {{rootUrl}}/start/features.md
[`no_optimize`]: {{rootUrl}}/start/features.md
[`no_float`]: {{rootUrl}}/start/features.md
[`only_i32`]: {{rootUrl}}/start/features.md
[`only_i64`]: {{rootUrl}}/start/features.md
[`no_index`]: {{rootUrl}}/start/features.md
[`no_object`]: {{rootUrl}}/start/features.md
[`no_function`]: {{rootUrl}}/start/features.md
[`no_module`]: {{rootUrl}}/start/features.md
[`no_std`]: {{rootUrl}}/start/features.md
[`no-std`]: /start/features.md
[`no-std`]: {{rootUrl}}/start/features.md
[minimal builds]: /start/builds/minimal.md
[WASM]: /start/builds/wasm.md
[minimal builds]: {{rootUrl}}/start/builds/minimal.md
[WASM]: {{rootUrl}}/start/builds/wasm.md
[`Engine`]: /engine/hello-world.md
[`private`]: /engine/call_fn.md
[`Func`]: /engine/func.md
[`eval_expression`]: /engine/expressions.md
[`eval_expression_with_scope`]: /engine/expressions.md
[raw `Engine`]: /engine/raw.md
[built-in operators]: /engine/raw.md#built-in-operators
[package]: /rust/packages.md
[packages]: /rust/packages.md
[`Scope`]: /rust/scope.md
[`Engine`]: {{rootUrl}}/engine/hello-world.md
[`private`]: {{rootUrl}}/engine/call_fn.md
[`Func`]: {{rootUrl}}/engine/func.md
[`eval_expression`]: {{rootUrl}}/engine/expressions.md
[`eval_expression_with_scope`]: {{rootUrl}}/engine/expressions.md
[raw `Engine`]: {{rootUrl}}/engine/raw.md
[built-in operators]: {{rootUrl}}/engine/raw.md#built-in-operators
[package]: {{rootUrl}}/rust/packages.md
[packages]: {{rootUrl}}/rust/packages.md
[`Scope`]: {{rootUrl}}/rust/scope.md
[`type_of()`]: /language/type_of.md
[`to_string()`]: /language/values-and-types.md
[`()`]: /language/values-and-types.md
[standard types]: /language/values-and-types.md
[`Dynamic`]: /language/dynamic.md
[`to_int`]: /language/convert.md
[`to_float`]: /language/convert.md
[`type_of()`]: {{rootUrl}}/language/type_of.md
[`to_string()`]: {{rootUrl}}/language/values-and-types.md
[`()`]: {{rootUrl}}/language/values-and-types.md
[standard types]: {{rootUrl}}/language/values-and-types.md
[`Dynamic`]: {{rootUrl}}/language/dynamic.md
[`to_int`]: {{rootUrl}}/language/convert.md
[`to_float`]: {{rootUrl}}/language/convert.md
[custom type]: /language/custom.md
[custom types]: /language/custom.md
[custom type]: {{rootUrl}}/language/custom.md
[custom types]: {{rootUrl}}/language/custom.md
[`print`]: /language/print-debug.md
[`debug`]: /language/print-debug.md
[`print`]: {{rootUrl}}/language/print-debug.md
[`debug`]: {{rootUrl}}/language/print-debug.md
[variable]: /language/variables.md
[variables]: /language/variables.md
[variable]: {{rootUrl}}/language/variables.md
[variables]: {{rootUrl}}/language/variables.md
[string]: /language/strings-chars.md
[strings]: /language/strings-chars.md
[char]: /language/strings-chars.md
[string]: {{rootUrl}}/language/strings-chars.md
[strings]: {{rootUrl}}/language/strings-chars.md
[char]: {{rootUrl}}/language/strings-chars.md
[array]: /language/arrays.md
[arrays]: /language/arrays.md
[`Array`]: /language/arrays.md
[array]: {{rootUrl}}/language/arrays.md
[arrays]: {{rootUrl}}/language/arrays.md
[`Array`]: {{rootUrl}}/language/arrays.md
[`Map`]: /language/object-maps.md
[object map]: /language/object-maps.md
[object maps]: /language/object-maps.md
[`Map`]: {{rootUrl}}/language/object-maps.md
[object map]: {{rootUrl}}/language/object-maps.md
[object maps]: {{rootUrl}}/language/object-maps.md
[`timestamp`]: /language/timestamps.md
[timestamp]: /language/timestamps.md
[timestamps]: /language/timestamps.md
[`timestamp`]: {{rootUrl}}/language/timestamps.md
[timestamp]: {{rootUrl}}/language/timestamps.md
[timestamps]: {{rootUrl}}/language/timestamps.md
[function]: /language/functions.md
[functions]: /language/functions.md
[function]: {{rootUrl}}/language/functions.md
[functions]: {{rootUrl}}/language/functions.md
[`Module`]: /language/modules.md
[module]: /language/modules.md
[modules]: /language/modules.md
[`export`]: /language/modules/export.md
[`import`]: /language/modules/import.md
[`Module`]: {{rootUrl}}/language/modules.md
[module]: {{rootUrl}}/language/modules.md
[modules]: {{rootUrl}}/language/modules.md
[`export`]: {{rootUrl}}/language/modules/export.md
[`import`]: {{rootUrl}}/language/modules/import.md
[`eval`]: /language/eval.md
[`eval`]: {{rootUrl}}/language/eval.md
[maximum statement depth]: /safety/max-stmt-depth.md
[maximum call stack depth]: /safety/max-call-stack.md
[maximum number of operations]: /safety/max-operations.md
[maximum number of modules]: /safety/max-modules.md
[maximum length of strings]: /safety/max-string-size.md
[maximum size of arrays]: /safety/max-array-size.md
[maximum size of object maps]: /safety/max-map-size.md
[maximum statement depth]: {{rootUrl}}/safety/max-stmt-depth.md
[maximum call stack depth]: {{rootUrl}}/safety/max-call-stack.md
[maximum number of operations]: {{rootUrl}}/safety/max-operations.md
[maximum number of modules]: {{rootUrl}}/safety/max-modules.md
[maximum length of strings]: {{rootUrl}}/safety/max-string-size.md
[maximum size of arrays]: {{rootUrl}}/safety/max-array-size.md
[maximum size of object maps]: {{rootUrl}}/safety/max-map-size.md
[progress]:/safety/progress.md
[script optimization]: /engine/optimize.md
[`OptimizationLevel::Full`]: /engine/optimize/optimize-levels.md
[`OptimizationLevel::Simple`]: /engine/optimize/optimize-levels.md
[`OptimizationLevel::None`]: /engine/optimize/optimize-levels.md
[script optimization]: {{rootUrl}}/engine/optimize.md
[`OptimizationLevel::Full`]: {{rootUrl}}/engine/optimize/optimize-levels.md
[`OptimizationLevel::Simple`]: {{rootUrl}}/engine/optimize/optimize-levels.md
[`OptimizationLevel::None`]: {{rootUrl}}/engine/optimize/optimize-levels.md

2
doc/src/rust/functions.md
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@ -7,7 +7,7 @@ Rhai's scripting engine is very lightweight. It gets most of its abilities from
To call these functions, they need to be _registered_ with the [`Engine`] using `Engine::register_fn`
(in the `RegisterFn` trait) and `Engine::register_result_fn` (in the `RegisterResultFn` trait,
see [fallible functions](/rust/fallible.md)).
see [fallible functions]({{rootUrl}}/rust/fallible.md)).
```rust
use rhai::{Dynamic, Engine, EvalAltResult, ImmutableString};

2
doc/src/rust/operators.md
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@ -14,7 +14,7 @@ let x = +(a, b); // <- the above is equivalent to this function call
```
Similarly, comparison operators including `==`, `!=` etc. are all implemented as functions,
with the stark exception of `&&` and `||`. Because they [_short-circuit_](/language/logic.md#boolean-operators),
with the stark exception of `&&` and `||`. Because they [_short-circuit_]({{rootUrl}}/language/logic.md#boolean-operators),
`&&` and `||` are handled specially and _not_ via a function; as a result, overriding them has no effect at all.
Operator functions cannot be defined as a script function (because operators syntax are not valid function names).

7
doc/src/start/builds/wasm.md
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@ -4,8 +4,11 @@ Building to WebAssembly (WASM)
{{#include ../../links.md}}
It is possible to use Rhai when compiling to WebAssembly (WASM). This yields a scripting engine (and language)
that can be run in a standard web browser. Why you would want to is another matter... as there is already
a nice, fast, complete scripting language for the the common WASM environment (i.e. a browser) - and it is called JavaScript.
that can be run in a standard web browser.
Why you would want to is another matter... as there is already a nice, fast, complete scripting language
for the the common WASM environment (i.e. a browser) - and it is called JavaScript.
But anyhow, do it because you _can_!
When building for WASM, certain features will not be available, such as the script file API's and loading modules