svgtypes

svgtypes is a collection of parsers, containers and writers for SVG types.

Usage is simple as:

```rust use svgtypes::Path;

let path: Path = "M10-20A5.5.3-4 110-.1".parse().unwrap(); asserteq!(path.tostring(), "M 10 -20 A 5.5 0.3 -4 1 1 0 -0.1"); ```

You can also use a low-level, pull-based parser:

```rust use svgtypes::PathParser;

let p = PathParser::from("M10-20A5.5.3-4 110-.1"); for token in p { println!("{:?}", token); } ```

You can also tweak an output format:

```rust use svgtypes::{Path, WriteBuffer, WriteOptions};

let pathstr = "M10-20A5.5.3-4 110-.1"; let path: Path = pathstr.parse().unwrap();

let opt = WriteOptions { removeleadingzero: true, usecompactpathnotation: true, joinarctoflags: true, .. WriteOptions::default() };

asserteq!(path.withwriteopt(&opt).tostring(), path_str); ```

Supported SVG types

| SVG Type | Rust Type | Storage | Parser | | ------------------------- | ------------- | ------- | ------------------- | | [\

• All types implement from string (FromStr, FromSpan) and to string traits (Display, WriteBuffer).
• The library doesn't store transform list as is. It will premultiplied.
• style and paint types can only be parsed.

Benefits

• Complete support of paths, so data like M10-20A5.5.3-4 110-.1 will be parsed correctly.
• Every type can be parsed separately, so you can parse just paths or transform or any other SVG value.
• Good error processing. All error types contain position (line:column) where it occurred.
• Access to pull-based parsers.
• Pretty fast.

Limitations

• All keywords must be lowercase. Case-insensitive parsing is supported only for colors (requires allocation for named colors).
• The <color> followed by the <icccolor> is not supported. As the <icccolor> itself.
• CSS styles does not processed. You should use an external CSS parser.
• Comments inside attributes value supported only for the style attribute.
• System colors, like fill="AppWorkspace", are not supported.
• There is no separate coordinate type. It will be parsed as <length>,
• There is no separate opacity-value type. It will be parsed as <number>, but will be bound to 0..1 range.
• Implicit path commands are not supported. All commands are parsed as explicit.
• Implicit MoveTo commands will be automatically converted into explicit LineTo.

Safety

• The library should not panic. Any panic considered as a critical bug and should be reported.
• The library forbids unsafe code.

Alternatives

None.

Migration from svgparser

This crate is a successor for the svgparser crate, but it differs from it in many ways.

• There is no XML parser or writer. You can use any you like. But since it depends on xmlparser and reexports it - you can use it too.
• Unlike the svgparser this crate not only parse values but can also store and write them. Currently, it has a minimal API for manipulating this values.
• No AttributeValue. This crate provides only value parsers. You should match attributes and values by yourself.
• No ValueId. It's up to you how to store those values.

Usage

Dependency: Rust >= 1.18

Add this to your Cargo.toml:

toml [dependencies] svgtypes = "0.1"

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.