feat: show formatted problem description

Author: exshak

lib/commands/show.js

@@ -96,10 +96,11 @@ function genFileName(problem, opts) {
 }
 
 function showProblem(problem, argv) {
+  const path = require('path');
   const taglist = [problem.category]
     .concat(problem.companies || [])
     .concat(problem.tags || [])
-    .map(x => h.badge(x, 'blue'))
+    .map(x => h.badge(x, 'gray'))
     .join(' ');
   const langlist = problem.templates
     .map(x => h.badge(x.value, 'yellow'))
@@ -169,11 +170,13 @@ function showProblem(problem, argv) {
   if (problem.totalSubmit)
     log.printf('* Total Submissions: %s', problem.totalSubmit);
   if (problem.testable && problem.testcase)
+    problem.testcase = problem.testcase.replace(/\n/g, ' ')
     log.printf('* Testcase Example:  %s', chalk.yellow(util.inspect(problem.testcase)));
   if (filename)
-    log.printf('* Source Code:       %s', chalk.yellow.underline(filename));
+    log.printf('* Source Code:       %s', chalk.gray.underline(path.basename(filename)));
 
   log.info();
+  problem = core.formatProblem(problem, {lang: argv.lang});
   log.info(problem.desc);
 }
 

lib/core.js

@@ -89,7 +89,7 @@ core.getProblem = function(keyword, needTranslation, cb) {
   this.getProblems(needTranslation, function(e, problems) {
     if (e) return cb(e);
 
-    keyword = Number(keyword) || keyword;	
+    keyword = Number(keyword) || keyword;
     const metaFid = file.exist(keyword) ? Number(file.meta(keyword).id) : NaN;
     const problem = problems.find(function(x) {
       return x.fid + '' === keyword + '' || x.fid + '' === metaFid + '' || x.name === keyword || x.slug === keyword;
@@ -135,4 +135,17 @@ core.exportProblem = function(problem, opts) {
   return file.render(opts.tpl, data);
 };
 
+core.formatProblem = function(problem, opts) {
+  const data = _.extend({}, problem);
+  if (!data.lang) data.lang = opts.lang;
+  data.comment = h.langToCommentStyle(data.lang);
+  let desc = data.desc;
+  desc = desc.replace(/<\/sup>/gm, '').replace(/<sup>/gm, '^');
+  desc = he.decode(cheerio.load(desc).root().text());
+  desc = desc.replace(/\r\n/g, '\n').replace(/^ /mg, '⁠').replace(/\n\n/g, '\n');
+  const wrap = require('wordwrap')(79 - data.comment.line.length);
+  data.desc = wrap(desc);
+  return data;
+};
+
 module.exports = core;