Made the code no-std and also made most of the code const!

this crate is now no-std and also so many of the functions now are const, you can even create a ArabicReshaper fully const now!
1.5.0 changes:
    - no-std
    - const as much functions as possible.
    - switched to BTreeMap from HashMap in reshaper because alloc dont have a HashMap.
    - added a new field named default_ligatures to LigaturesFlags for adding just default ones if needed.
    - updated all the dependecies.

.github/workflows/rust.yml

@@ -23,10 +23,10 @@ jobs:
       - name: Install cargo-audit
         run: cargo install cargo-audit
       - name: Build
-        run: cargo build --verbose
+        run: cargo build --all-features --verbose
       - name: Run tests
-        run: cargo test --verbose
+        run: cargo test --all-features --verbose
       - name: Clippy
-        run: cargo clippy --verbose -- -D warnings
+        run: cargo clippy --all-features --verbose -- -D warnings
       - name: Audit
-        run: cargo audit
+        run: cargo audit --all-features

Cargo.toml

@@ -1,21 +1,22 @@
 [package]
 name = "ar-reshaper"
-version = "1.3.1"
+version = "1.5.0"
 authors = ["Saeid Ghafari <[email protected]>"]
 edition = "2021"
-description = "Reconstruct Arabic sentences to be used in applications that don't support Arabic script."
+description = "A no-std crate to reconstruct Arabic, turkish and persian sentences to be used in applications that don't support Arabic script."
 repository = "https://github.com/YouKnow-sys/ar-reshaper"
 documentation = "https://docs.rs/ar-reshaper"
 license = "MIT"
-keywords = ["arabic", "persian", "turkish", "reshape"]
+keywords = ["arabic", "persian", "turkish", "reshape", "no-std", "no_std"]
+readme = "README.md"
 categories = ["algorithms"]
 
 [features]
-default = []
+default = ["ttf-parser"]
 
 [dependencies]
 serde = { version = "1.0", features = ["derive"], optional = true }
-ttf-parser = { version = "0.19", optional = true }
+ttf-parser = { version = "0.20", optional = true }
 
 [[example]]
 name = "reshape_line"

README.md

@@ -1,14 +1,17 @@
 # Arabic Reshaper Rust
+
 [![Latest version](https://img.shields.io/crates/v/ar-reshaper)](https://crates.io/crates/ar-reshaper)
 [![Documentation](https://docs.rs/ar-reshaper/badge.svg)](https://docs.rs/ar-reshaper)
 [![Build Status](https://github.com/YouKnow-sys/ar-reshaper/actions/workflows/rust.yml/badge.svg)](https://github.com/YouKnow-sys/ar-reshaper/actions?workflow=Rust%20CI)
 [![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
 [![MIT](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/YouKnow-sys/ar-reshaper/blob/master/LICENSE)
 
-Reconstruct Arabic sentences to be used in applications that don't support Arabic script.
+A **no-std** crate to reconstruct Arabic, Turkish and Persian sentences to be used in applications that don't support Arabic script.
 
 # Usage:
+
 resahpe a single line of string
+
 ```rust
 use ar_reshaper::{ArabicReshaper, reshape_line};
 
@@ -21,7 +24,9 @@ println!("{}", reshaper.reshape("سلام دنیا"));
 println!("{}", reshape_line("سلام دنیا"));
 // Both will reconstruct the string and print `ﺳﻼﻡ ﺩﻧﯿﺎ`
 ```
+
 reshape a slice of strings
+
 ```rust
 use ar_reshaper::ArabicReshaper;
 
@@ -35,20 +40,29 @@ let lines = [
 println!("{:#?}", reshaper.reshape_lines(lines));
 // or you can just use reshape method in a loop... the choice is yours.
 ```
+
 reshape strings on a iterator
+
 ```rust
 use ar_reshaper::prelude::*;
 
 for line in ["یک", "دو"].iter().reshape_default() {
     println!("{line}");
 }
 ```
-You can check **example** or **test** directory for more examples.
+
+You can check [**examples**](https://github.com/YouKnow-sys/ar-reshaper/examples) or [**tests**](https://github.com/YouKnow-sys/ar-reshaper/tests) directory for more examples.
 
 # features:
+
 - **serde**: if this feature is enabled the `ReshaperConfig` can be serialized and de-serialized using serde.
 - **ttf-parser**: if you enable this feature the `ReshaperConfig` method will have another extra
-method named `from_font` that can be used to enable ligatures only if they exist in the input font.
+  method named `from_font` that can be used to enable ligatures only if they exist in the input font.
+
+## notes:
+
+- keep in mind that this crate need a allocator to work, because we depend on `alloc` internally.
 
 ## Credits:
-this project is based on the awesome [`python-arabic-reshaper`](https://github.com/mpcabd/python-arabic-reshaper).
+
+this project is based on the awesome [`python-arabic-reshaper`](https://github.com/mpcabd/python-arabic-reshaper).