Sublime Text 2 script for Prettifying JSON

prettify_json.py

import sublime, sublime_plugin, json, traceback, sys, re

class PrettifyJsonCommand(sublime_plugin.TextCommand):
    
    def run(self, edit):

        # Get the current selection
        if self.view.sel()[0].empty():
            region = sublime.Region(0L, self.view.size())
            source = self.view.substr(region).encode('utf-8')
        else:
            region = self.view.sel()[0]
            source = self.view.substr(self.view.sel()[0]).encode('utf-8')

        #print source
        try:
            result = json.loads(source)
            result = json.dumps(result, sort_keys=True, indent=2)
            # Replace the buffer
            self.view.replace(edit, region, result.decode('utf-8'))
        except ValueError, err:
            err = str(err)
            linecol = re.compile(r' line (\d+) column (\d+) ')
            ret = linecol.search(err)
            if ret!=None:
                err = "# Error:"+str(ret.groups())+"\n"
                row, col = [ int(g) for g in ret.groups() ]
                lines = source.split('\n')
                idx = len("\n".join(lines[:row-1]))
                target_region = sublime.Region(idx, idx+col)
                self.view.sel().clear()
                self.view.sel().add(target_region)
            else:
                err = "# Unknown Error:"+err+"\n"
        
            result = err+source

    def description(self):
        return "Prettify Json"