[Golang] Conversion of Traditional and Simplified Chinese

OpenCC is a tool (both online and offline) for conversion Traditional and Simplified Chinese. In this post, we will write a Go program to use OpenCC to convert Simplified Chinese to Traditional Chinese.

If you need a converter implemented in Go, please visit gojianfan [7].

Install OpenCC

See OpenCC repository on GitHub for installation. If you use Ubuntu Linux 15.10, you can search and install OpenCC by following command:

$ apt-cache search opencc
fcitx-modules - Flexible Input Method Framework - core modules
libopencc-dbg - simplified-traditional chinese conversion library - debug
libopencc-dev - simplified-traditional chinese conversion library - development
libopencc1 - simplified-traditional chinese conversion library - runtime
opencc - simplified-traditional chinese conversion tool
python-opencc - simplified-traditional chinese conversion library - Python support
$ sudo apt-get install opencc libopencc-dev

OpenCC wrapper for Golang

After some googling [2], I found an OpenCC wrapper [3] for Go. I tried this wrapper but it did not work. So I forked it and made some modifications to make it work on my system. Assume Go is already install in your system, install the my modified wrapper [4] by:

$ go get github.com/siongui/go-opencc

Another problem I had is that README said the configurations are .json files. I run locate opencc command:

$ locate opencc
/usr/lib/x86_64-linux-gnu/libopencc.so.1
/usr/lib/x86_64-linux-gnu/libopencc.so.1.0.0
/usr/lib/x86_64-linux-gnu/opencc
/usr/lib/x86_64-linux-gnu/opencc/from_tw_phrases.txt
/usr/lib/x86_64-linux-gnu/opencc/from_tw_variants.txt
/usr/lib/x86_64-linux-gnu/opencc/mix2zhs.ini
/usr/lib/x86_64-linux-gnu/opencc/mix2zht.ini
/usr/lib/x86_64-linux-gnu/opencc/simp_to_trad_characters.ocd
/usr/lib/x86_64-linux-gnu/opencc/simp_to_trad_phrases.ocd
/usr/lib/x86_64-linux-gnu/opencc/to_cn_phrases.txt
/usr/lib/x86_64-linux-gnu/opencc/to_tw_phrases.txt
/usr/lib/x86_64-linux-gnu/opencc/to_tw_variants.txt
/usr/lib/x86_64-linux-gnu/opencc/trad_to_simp_characters.ocd
/usr/lib/x86_64-linux-gnu/opencc/trad_to_simp_phrases.ocd
/usr/lib/x86_64-linux-gnu/opencc/zhs2zht.ini
/usr/lib/x86_64-linux-gnu/opencc/zhs2zhtw_p.ini
/usr/lib/x86_64-linux-gnu/opencc/zhs2zhtw_v.ini
/usr/lib/x86_64-linux-gnu/opencc/zhs2zhtw_vp.ini
/usr/lib/x86_64-linux-gnu/opencc/zht2zhs.ini
/usr/lib/x86_64-linux-gnu/opencc/zht2zhtw_p.ini
/usr/lib/x86_64-linux-gnu/opencc/zht2zhtw_v.ini
/usr/lib/x86_64-linux-gnu/opencc/zht2zhtw_vp.ini
/usr/lib/x86_64-linux-gnu/opencc/zhtw2zhcn_s.ini
/usr/lib/x86_64-linux-gnu/opencc/zhtw2zhcn_t.ini
/usr/lib/x86_64-linux-gnu/opencc/zhtw2zhs.ini
/usr/lib/x86_64-linux-gnu/opencc/zhtw2zht.ini
/usr/share/doc/libopencc1
/usr/share/doc/libopencc1/changelog.Debian.gz
/usr/share/doc/libopencc1/copyright
/var/lib/dpkg/info/libopencc1:amd64.list
/var/lib/dpkg/info/libopencc1:amd64.md5sums
/var/lib/dpkg/info/libopencc1:amd64.postinst
/var/lib/dpkg/info/libopencc1:amd64.postrm
/var/lib/dpkg/info/libopencc1:amd64.shlibs
/var/lib/dpkg/info/libopencc1:amd64.symbols

I saw no .json files, but saw a lot of .ini files. I used these .ini files as configurations and it worked. I guess that maybe at some moment the author of OpenCC changed the name of configurations.

Souce Code

zhCN2zhTW.go | repository | view raw

package mylib

import "github.com/siongui/go-opencc"

func CN2TW(input string) string {
	c := opencc.NewConverter("zhs2zhtw_vp.ini")
	defer c.Close()
	return c.Convert(input)
}

You can replace zhs2zhtw_vp.ini with other configurations according to your needs. All configurations I found by locate opencc are:

mix2zhs.ini
mix2zht.ini
zhs2zht.ini
zhs2zhtw_p.ini
zhs2zhtw_v.ini
zhs2zhtw_vp.ini
zht2zhs.ini
zht2zhtw_p.ini
zht2zhtw_v.ini
zht2zhtw_vp.ini
zhtw2zhcn_s.ini
zhtw2zhcn_t.ini
zhtw2zhs.ini
zhtw2zht.ini

Test

zhCN2zhTW_test.go | repository | view raw

package mylib

import "testing"

func TestCN2TW(t *testing.T) {
	t.Log(CN2TW("中国鼠标软件打印机"))
}

Output of Test

=== RUN   TestCN2TW
--- PASS: TestCN2TW (0.02s)
        zhCN2zhTW_test.go:6: 中國滑鼠軟體列印機
PASS

Tested on: Ubuntu Linux 15.10, Go 1.5.2, opencc 0.4.3-2build1.

References:

[1]	開放中文轉換 Open Chinese Convert (OpenCC) (source code)

[2]	Google Search: golang opencc

[3]	stevenyao/go-opencc · GitHub (OpenCC wrapper for Golang, )

[4]	siongui/go-opencc · GitHub (my modified OpenCC wrapper for Golang, )

[5]	[JavaScript] Conversion of Traditional and Simplified Chinese

[6]	[Python] Conversion of Traditional and Simplified Chinese

[7]	[Golang] Converter for Traditional and Simplified Chinese