svg

Documentation

Overview

Package svg minifies SVG1.1 following the specifications at http://www.w3.org/TR/SVG11/.

Index

• Variables
• func Minify(m *minify.M, w io.Writer, r io.Reader, params map[string]string) error
• type Minifier
  • func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]string) error
• type PathData
  • func NewPathData(o *Minifier) *PathData
  • func (p *PathData) ShortenPathData(b []byte) []byte
• type PathDataState
• type Token
• type TokenBuffer
  • func NewTokenBuffer(l *xml.Lexer) *TokenBuffer
  • func (z *TokenBuffer) Attributes(hashes ...svg.Hash) ([]*Token, *Token)
  • func (z *TokenBuffer) Peek(pos int) *Token
  • func (z *TokenBuffer) Shift() *Token

Examples

• Minify

Variables

var DefaultMinifier = &Minifier{Decimals: -1}

DefaultMinifier is the default minifier.

Functions

func Minify

func Minify(m *minify.M, w io.Writer, r io.Reader, params map[string]string) error

Minify minifies SVG data, it reads from r and writes to w.

Example

m := minify.New()
m.AddFunc("image/svg+xml", Minify)
m.AddFunc("text/css", css.Minify)

if err := m.Minify("image/svg+xml", os.Stdout, os.Stdin); err != nil {
	panic(err)
}

Types

type Minifier

type Minifier struct {
	Decimals int
}

Minifier is an SVG minifier.

func (*Minifier) Minify

func (o *Minifier) Minify(m *minify.M, w io.Writer, r io.Reader, _ map[string]string) error

Minify minifies SVG data, it reads from r and writes to w.

type PathData

type PathData struct {
	// contains filtered or unexported fields
}

func NewPathData

func NewPathData(o *Minifier) *PathData

func (*PathData) ShortenPathData

func (p *PathData) ShortenPathData(b []byte) []byte

ShortenPathData takes a full pathdata string and returns a shortened version. The original string is overwritten. It parses all commands (M, A, Z, ...) and coordinates (numbers) and calls copyInstruction for each command.

type PathDataState

type PathDataState struct {
	// contains filtered or unexported fields
}

type Token

type Token struct {
	xml.TokenType
	Hash    svg.Hash
	Data    []byte
	Text    []byte
	AttrVal []byte
}

Token is a single token unit with an attribute value (if given) and hash of the data.

type TokenBuffer

type TokenBuffer struct {
	// contains filtered or unexported fields
}

TokenBuffer is a buffer that allows for token look-ahead.

func NewTokenBuffer

func NewTokenBuffer(l *xml.Lexer) *TokenBuffer

NewTokenBuffer returns a new TokenBuffer.

func (*TokenBuffer) Attributes

func (z *TokenBuffer) Attributes(hashes ...svg.Hash) ([]*Token, *Token)

Attributes extracts the gives attribute hashes from a tag. It returns in the same order pointers to the requested token data or nil.

func (*TokenBuffer) Peek

func (z *TokenBuffer) Peek(pos int) *Token

Peek returns the ith element and possibly does an allocation. Peeking past an error will panic.

func (*TokenBuffer) Shift

func (z *TokenBuffer) Shift() *Token

Shift returns the first element and advances position.