PLT-3487 Preview uploaded txt file (#4145)

* fix filename

* Add 'txt' to hilighted language

webapp/components/code_preview.jsx

@@ -4,7 +4,7 @@
 import $ from 'jquery';
 import React from 'react';
 
-import * as SyntaxHighlighting from 'utils/syntax_hightlighting.jsx';
+import * as SyntaxHighlighting from 'utils/syntax_highlighting.jsx';
 import Constants from 'utils/constants.jsx';
 
 import FileInfoPreview from './file_info_preview.jsx';

webapp/utils/constants.jsx

@@ -261,7 +261,7 @@ export const Constants = {
     PRESENTATION_TYPES: ['ppt', 'pptx'],
     SPREADSHEET_TYPES: ['xlsx', 'csv'],
     WORD_TYPES: ['doc', 'docx'],
-    CODE_TYPES: ['as', 'applescript', 'osascript', 'scpt', 'bash', 'sh', 'zsh', 'clj', 'boot', 'cl2', 'cljc', 'cljs', 'cljs.hl', 'cljscm', 'cljx', 'hic', 'coffee', '_coffee', 'cake', 'cjsx', 'cson', 'iced', 'cpp', 'c', 'cc', 'h', 'c++', 'h++', 'hpp', 'cs', 'csharp', 'css', 'd', 'di', 'dart', 'delphi', 'dpr', 'dfm', 'pas', 'pascal', 'freepascal', 'lazarus', 'lpr', 'lfm', 'diff', 'django', 'jinja', 'dockerfile', 'docker', 'erl', 'f90', 'f95', 'fsharp', 'fs', 'gcode', 'nc', 'go', 'groovy', 'handlebars', 'hbs', 'html.hbs', 'html.handlebars', 'hs', 'hx', 'java', 'jsp', 'js', 'jsx', 'json', 'jl', 'kt', 'ktm', 'kts', 'less', 'lisp', 'lua', 'mk', 'mak', 'md', 'mkdown', 'mkd', 'matlab', 'm', 'mm', 'objc', 'obj-c', 'ml', 'perl', 'pl', 'php', 'php3', 'php4', 'php5', 'php6', 'ps', 'ps1', 'pp', 'py', 'gyp', 'r', 'ruby', 'rb', 'gemspec', 'podspec', 'thor', 'irb', 'rs', 'scala', 'scm', 'sld', 'scss', 'st', 'sql', 'swift', 'tex', 'vbnet', 'vb', 'bas', 'vbs', 'v', 'veo', 'xml', 'html', 'xhtml', 'rss', 'atom', 'xsl', 'plist', 'yaml'],
+    CODE_TYPES: ['as', 'applescript', 'osascript', 'scpt', 'bash', 'sh', 'zsh', 'clj', 'boot', 'cl2', 'cljc', 'cljs', 'cljs.hl', 'cljscm', 'cljx', 'hic', 'coffee', '_coffee', 'cake', 'cjsx', 'cson', 'iced', 'cpp', 'c', 'cc', 'h', 'c++', 'h++', 'hpp', 'cs', 'csharp', 'css', 'd', 'di', 'dart', 'delphi', 'dpr', 'dfm', 'pas', 'pascal', 'freepascal', 'lazarus', 'lpr', 'lfm', 'diff', 'django', 'jinja', 'dockerfile', 'docker', 'erl', 'f90', 'f95', 'fsharp', 'fs', 'gcode', 'nc', 'go', 'groovy', 'handlebars', 'hbs', 'html.hbs', 'html.handlebars', 'hs', 'hx', 'java', 'jsp', 'js', 'jsx', 'json', 'jl', 'kt', 'ktm', 'kts', 'less', 'lisp', 'lua', 'mk', 'mak', 'md', 'mkdown', 'mkd', 'matlab', 'm', 'mm', 'objc', 'obj-c', 'ml', 'perl', 'pl', 'php', 'php3', 'php4', 'php5', 'php6', 'ps', 'ps1', 'pp', 'py', 'gyp', 'r', 'ruby', 'rb', 'gemspec', 'podspec', 'thor', 'irb', 'rs', 'scala', 'scm', 'sld', 'scss', 'st', 'sql', 'swift', 'tex', 'txt', 'vbnet', 'vb', 'bas', 'vbs', 'v', 'veo', 'xml', 'html', 'xhtml', 'rss', 'atom', 'xsl', 'plist', 'yaml'],
     PDF_TYPES: ['pdf'],
     PATCH_TYPES: ['patch'],
     ICON_FROM_TYPE: {
@@ -772,6 +772,7 @@ export const Constants = {
         sql: {name: 'SQL', extensions: ['sql']},
         swift: {name: 'Swift', extensions: ['swift']},
         tex: {name: 'TeX', extensions: ['tex']},
+        text: {name: 'Text', extensions: ['txt']},
         vbnet: {name: 'VB.Net', extensions: ['vbnet', 'vb', 'bas']},
         vbscript: {name: 'VBScript', extensions: ['vbs']},
         verilog: {name: 'Verilog', extensions: ['v', 'veo']},

webapp/utils/markdown.jsx

@@ -2,7 +2,7 @@
 // See License.txt for license information.
 
 import * as TextFormatting from './text_formatting.jsx';
-import * as SyntaxHighlighting from './syntax_hightlighting.jsx';
+import * as SyntaxHighlighting from './syntax_highlighting.jsx';
 
 import marked from 'marked';
 import katex from 'katex';