reading_time helper doesn't work with Chinese

[xiaochunjimmy]

Issue Summary

reading_time helper does not work with Chinese.
It may always be "<1 min read"

Steps to Reproduce

1. As I know the reading time helper is count by spaces and count by words.But in Chinese we use characters rather than words.

2.In Chinese we seldom use spaces to separate words. An Chinese word is consists of characters, we use words to express our thoughts but we write with characters.So we should count characters for Chinese reading time.

For example:
我今天在家吃了好多好多好吃的，现在的我非常开心非常满足。
This Chinese sentence contains 26 characters and 2 punctuations.
But ghost reading_time helper count it as 2 words may be.
So may be an 4000 Chinese Characters article shows "<1 min read" ,but we use about 10min to read actually.

3.Ghost reading helper might accept a parameter to count characters for Chinese.
here's a regex to count Chinese:

var reg = /[\u4e00-\u9fa5]/g;
var str = "js计算一段文本中有多少个汉字？";
console.debug(str.match(reg).length);

As I know there's other language use characters, such as Japanese.

Technical details:

• Ghost Version: 1.21.4
• Node Version:
• Browser/OS:
• Database:

[aileen]

This is something that is not yet implemented, as there is need to find a solution that works for latin languages as well as asian languages such as Chinese.

We're happy for PRs here to solve this issue!

[xiaochunjimmy]

In fact，I found that the words counting function works good for Chinese.
We can use the number in the picture（in red rectangle）directly for Chinese word counting.
Chinese people 's read speed is 300-500 Characters(words) per min.

[kirrg001]

@AileenCGN The comment in the word count utility says

This is the same code as used on the client side. See here:
/core/client/app/utils/word-count.js

I wonder why the result is different? 🤔

[rkalis]

I think the client word-count.js is unused. The Markdown editor uses simpleMDE's wordcount function. Any objections to using that implementation in the server wordCount? I can raise a PR for that when I get home tonight.

[ErisDS]

Sounds good- should prob remove it from client as well!