Crate svgparser

libsvgparser is a streaming parser/tokenizer for SVG 1.1 Full data format without heap allocations.

It's not an XML parser since it does not only split the content into the XML nodes, but also supports SVG types parsing.

Supported SVG types

• <color>
• <paint>
• <path>
• <number> and <list-of-numbers>
• <length> and <list-of-lengths>
• <coordinate>
• <IRI>
• <FuncIRI>
• <transform-list>
• <style>

Benefits

• Most of the common data parsed into internal representation, and not just as string (unlike typical XML parser). Tag names, attribute names, attributes value, etc.
• Complete support of paths, so data like M10-20A5.5.3-4 110-.1 will be parsed correctly.
• Predefined SVG values for presentation attributes, like auto, normal, none, inherit, etc. are parsed as enum, not as String.
• 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.
• No heap allocations.
• Pretty fast.

Limitations

• All keywords must be lowercase. Case-insensitive parsing is not supported. Still, it's extremely rare.
• The <color> followed by the <icccolor> is not supported. As the <icccolor> itself.
• Only ENTITY objects are parsed from the DOCTYPE. Other ignored.
• 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 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.
• No escape support for text. It will be emitted as is.

Differences between libsvgparser and SVG spec

• <percentage> type is part of the <length> type.

Modules

path	Module for parsing <path> data.
style	Module for parsing <style> data.
svg	Module for parsing SVG structure.
transform	Module for parsing <transform-list> data.

Macros

warnln

Prints warnings into stderr.

Structs

Color	Representation of the <color> type.
ErrorPos	Position of an error.
Length	Representation of the <length> type.
LengthList	Iterator over a list of <length> values.
NumberList	Iterator over a list of <number> values.
Stream	Streaming text parsing interface.
TextFrame	An immutable string slice.

Enums

AttributeId	List of all SVG attributes.
AttributeValue	Representation of the SVG attribute value.
ElementId	List of all SVG elements.
Error	List of all errors.
LengthUnit	List of all SVG length units.
PaintFallback	The paint type fallback value in case when FuncIRI is not resolved.
ValueId	List of all values for presentation attributes.

Traits

Tokenize

A general tokenizer interface.