Pretty JSLint output for TextMate

My coworker Stoyan Stefanov wrote a helpful blog post a few weeks ago describing how to create a simple TextMate bundle that allows you to quickly run the current file through JSLint. I’ve extended Stoyan’s bundle command to prettify the JSLint output for display in an HTML window.

Here’s what the ouput looks like (click for full size):

Screenshot of TextMate JSLint bundle output

To use this command, just follow the instructions in Stoyan’s blog post using the script below in place of his bundle command, then select “Show as HTML” from the Output dropdown below the command edit box.

#!/usr/bin/env ruby
require 'cgi'

lint = `java ~/Library/JSLint/jslint.js "$TM_FILEPATH"`

lint.gsub!(/^(Lint at line )(\d+)(.+?:)(.+?)\n(?:(.+?)\n\n)?/m) do
  "<p><strong>#{CGI.escapeHTML($1)}<a href=\"txmt://open?url=file://TM_FILEPATH&line=#{CGI.escapeHTML($2)}\">#{CGI.escapeHTML($2)}</a>#{CGI.escapeHTML($3)}</strong>#{CGI.escapeHTML($4)}" <<
    ($5 ? "<pre>#{CGI.escapeHTML($5)}</pre>" : '')

lint.gsub!(/^(jslint:)(.+?)$/, '<p><strong>\1</strong>\2</p>')
lint.gsub!(/TM_FILEPATH/, ENV['TM_FILEPATH']) 

print <<HTML
  <style type="text/css">
    p { margin-bottom: 0; }
    pre {
      background: #f5f5f5;
      border: 1px solid #cfcfcf;
      font-size: 12px;
      margin-top: 2px;
      padding: 2px 4px;

Update (2009-05-07): Added line number linkage courtesy of Steve Spencer.