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https://github.com/tdewolff/font
Font parsing and manipulation
https://github.com/tdewolff/font
font otf parse ttf woff
Last synced: 4 months ago
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Font parsing and manipulation
- Host: GitHub
- URL: https://github.com/tdewolff/font
- Owner: tdewolff
- License: mit
- Created: 2024-03-04T12:40:53.000Z (11 months ago)
- Default Branch: master
- Last Pushed: 2024-07-28T19:39:18.000Z (6 months ago)
- Last Synced: 2024-07-28T20:47:10.491Z (6 months ago)
- Topics: font, otf, parse, ttf, woff
- Language: Go
- Homepage:
- Size: 14.3 MB
- Stars: 5
- Watchers: 2
- Forks: 3
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
Awesome Lists containing this project
README
# Font [](https://pkg.go.dev/github.com/tdewolff/font?tab=doc)
**[fontcmd](https://github.com/tdewolff/font/tree/master/cmd/fontcmd)**: font toolkit that can select a subset of glyphs from a font, merge fonts, or show font information and display glyphs in the command line or as a raster image.
This library contains font parsers for WOFF, WOFF2, and EOT. It takes a byte-slice as input and converts it to SFNT formats (either TTF or OTF). As font formats for the web, WOFF, WOFF2, and EOT are really just containers for SFNT fonts (such as TTF and OTF) that have better compression.
The WOFF and WOFF2 converters have been testing using the validation tests from the W3C.
## Usage
Import using:
``` go
import "github.com/tdewolff/font"
```
Then we can parse any byte-slice that is in the WOFF/WOFF2/EOT file format and extract its TTF/OTF content.
``` go
font, err := ioutil.ReadFile("DejaVuSerif.woff")
if err != nil {
panic(err)
}
sfnt, err := font.ToSFNT(font)
if err != nil {
panic(err)
}
```
or using an `io.Reader`
``` go
font, err := os.Open("DejaVuSerif.woff")
if err != nil {
panic(err)
}
font, err = font.NewSFNTReader(font)
if err != nil {
panic(err)
}
```
### WOFF
``` go
woff, err := ioutil.ReadFile("DejaVuSerif.woff")
if err != nil {
panic(err)
}
sfnt, err := font.ParseWOFF(woff)
if err != nil {
panic(err)
}
ext := font.Extension(sfnt)
if err = ioutil.WriteFile("DejaVuSerif"+ext, sfnt, 0644); err != nil {
panic(err)
}
```
Tested using https://github.com/w3c/woff/tree/master/woff1/tests.
### WOFF2
``` go
woff2, err := ioutil.ReadFile("DejaVuSerif.woff2")
if err != nil {
panic(err)
}
sfnt, err := font.ParseWOFF2(woff2)
if err != nil {
panic(err)
}
ext := font.Extension(sfnt)
if err = ioutil.WriteFile("DejaVuSerif"+ext, sfnt, 0644); err != nil {
panic(err)
}
```
Tested using https://github.com/w3c/woff2-tests.
### EOT
``` go
eof, err := ioutil.ReadFile("DejaVuSerif.eot")
if err != nil {
panic(err)
}
sfnt, err = font.ParseEOT(eot)
if err != nil {
panic(err)
}
ext := font.Extension(sfnt)
if err = ioutil.WriteFile("DejaVuSerif"+ext, sfnt, 0644); err != nil {
panic(err)
}
```
## License
Released under the [MIT license](LICENSE.md).