Description of the Issue

Currently functions are well detected, but some awk scripts are messing with the patterns.

Steps to Reproduce the Issue

1. Remove .txt extension from attachment test_npp.sh.txt
   , and open it in npp
2. Check the function list

Expected Behavior

Only the functions are listed.

Actual Behavior

functions are listed, but awk-embedded blocks also are.

My view

I think some patterns should be stricter
From bash-hackers, grammar looks like:
NAME () <COMPOUND_COMMAND> <REDIRECTIONS>
function NAME () <COMPOUND_COMMAND> <REDIRECTIONS>
function NAME <COMPOUND_COMMAND> <REDIRECTIONS>

So one point is that () should always be empty
another point is that we should exclude from functions NAME the list of reserved keywords like if, while...

Debug Information

Notepad++ v6.9.2
Build time : May 18 2016 - 00:34:05
Path : C:\Program Files (x86)\Notepad++\notepad++.exe
Admin mode : ON
Local Conf mode : OFF
OS : Windows 7
Plugins : ComparePlugin.dll mimeTools.dll NppCCompletionPlugin.dll NppConverter.dll NppExport.dll NppFTP.dll nppplugin_ofis2.dll nppplugin_solutionhub.dll nppplugin_solutionhub_ui.dll NppSaveAsAdmin.dll PluginManager.dll QuickOpenPlugin.dll XMLTools.dll