douceur

A simple CSS parser and inliner in Golang.

Douceur Logo

Parser is vaguely inspired by CSS Syntax Module Level 3 and corresponding JS parser.

Inliner only parses CSS defined in HTML document, it DOES NOT fetch external stylesheets (for now).

Inliner inserts additional attributes when possible, for example:

html
<html>
  <head>
  <style type="text/css">
    body {
      background-color: #f2f2f2;
    }
  </style>
  </head>
  <body>
    <p>Inline me !</p>
  </body>
</html>`

Becomes:

html
<html>
  <head>
  </head>
  <body style="background-color: #f2f2f2;" bgcolor="#f2f2f2">
    <p>Inline me !</p>
  </body>
</html>`

The bgcolor attribute is inserted, in addition to the inlined background-color style.

Tool usage

Install tool:

$ go install github.com/aymerick/douceur

Parse a CSS file and display result:

$ douceur parse inputfile.css

Inline CSS in an HTML document and display result:

$ douceur inline inputfile.html

Library usage

Fetch package:

$ go get github.com/aymerick/douceur

Parse CSS

go
package main

import (
    "fmt"

    "github.com/aymerick/douceur/parser"
)

func main() {
    input := `body {
    /* D4rK s1T3 */
    background-color: black;
        }

  p     {
    /* Try to read that ! HAHA! */
    color: red; /* L O L */
 }
`

    stylesheet, err := parser.Parse(input)
    if err != nil {
        panic("Please fill a bug :)")
    }

    fmt.Print(stylesheet.String())
}

Displays:

css
body {
  background-color: black;
}
p {
  color: red;
}

Inline HTML

go
package main

import (
    "fmt"

    "github.com/aymerick/douceur/inliner"
)

func main() {
    input := `<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<style type="text/css">
  p {
    font-family: 'Helvetica Neue', Verdana, sans-serif;
    color: #eee;
  }
</style>
  </head>
  <body>
    <p>
      Inline me please!
    </p>
</body>
</html>`

    html, err := inliner.Inline(input)
    if err != nil {
        panic("Please fill a bug :)")
    }

    fmt.Print(html)
}

Displays:

css
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>

  </head>
  <body>
    <p style="color: #eee; font-family: &#39;Helvetica Neue&#39;, Verdana, sans-serif;">
      Inline me please!
    </p>

</body></html>

Test

go test ./... -v

Dependencies

Parser uses Gorilla CSS3 tokenizer.
Inliner uses goquery to manipulate HTML.

Douceur

douceur

Tool usage

Library usage

Parse CSS

Inline HTML

Test

Dependencies

Similar projects

Contributors

douceur

Tool usage

Library usage

Parse CSS

Inline HTML

Test

Dependencies

Similar projects

Contributors

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