hexo-word-counter/index.js

Symbols count and time to read for articles.

/* global hexo */

'use strict';

const { setConfig, symbolsCount, symbolsTime, symbolsCountTotal, symbolsTimeTotal } = require('./lib/helper');
let wordCount;
try {
  ({ wordCount } = require('./pkg/word_counter.js'));
} catch {
  // Fallback or better error handling if module not built
  console.warn('hexo-word-counter: WASM module not found. Run npm run build.');
  wordCount = () => 0;
}

const rBacktick = /^((?:[^\S\r\n]*>){0,3}[^\S\r\n]*)(`{3,}|~{3,})[^\S\r\n]*((?:.*?[^`\s])?)[^\S\r\n]*\n((?:[\s\S]*?\n)?)(?:(?:[^\S\r\n]*>){0,3}[^\S\r\n]*)\2[^\S\r\n]?(\n+|$)/gm;

hexo.config.symbols_count_time = Object.assign({
  symbols          : true,
  time             : true,
  total_symbols    : true,
  total_time       : true,
  exclude_codeblock: false,
  wpm              : 275,
  suffix           : 'mins.'
}, hexo.config.symbols_count_time);
const config = hexo.config.symbols_count_time;

setConfig(config);

if (config.symbols) {
  hexo.extend.helper.register('symbolsCount', symbolsCount);
  hexo.extend.helper.register('wordcount', symbolsCount);
}

if (config.time) {
  hexo.extend.helper.register('symbolsTime', symbolsTime);
  hexo.extend.helper.register('min2read', symbolsTime);
}

if (config.total_symbols) {
  hexo.extend.helper.register('symbolsCountTotal', symbolsCountTotal);
  hexo.extend.helper.register('totalcount', symbolsCountTotal);
}

if (config.total_time) {
  hexo.extend.helper.register('symbolsTimeTotal', symbolsTimeTotal);
}

if (config.symbols || config.time || config.total_symbols || config.total_time) {
  hexo.extend.filter.register('after_post_render', data => {
    let { _content } = data;
    if (config.exclude_codeblock) _content = _content.replace(rBacktick, '');
    data.length = wordCount(_content);
  }, 0);
}