Clean up boolean highlighting

Turning syntax off and back on is more than what's necessary to reload the syntax for the current buffer.

CHANGES.txt

@@ -1,3 +1,20 @@
+Revision 3.3.4 (2013-08-11):
+
+    - Highlight True and False as booleans. Patch by Yuri Habrusiev.
+
+Revision 3.3.3 (2013-06-02):
+
+   - More lightweight syntax reloading. Patch by Will Gray.
+
+Revision 3.3.2 (2013-06-01):
+
+   - Fixed behaviour of b:python_version_2 variable. Reported by Will Gray.
+
+Revision 3.3.1 (2013-05-12):
+
+   - The script was moved to its own repository at
+     https://github.com/hdima/python-syntax
+
 Revision 3.3.0 (2013-03-10):
 
     - Merge Python 2 and Python 3 script versions into the single python.vim

README.rst

@@ -0,0 +1,139 @@
+Python syntax highlighting script for Vim
+=========================================
+
+.. contents::
+
+About
+-----
+
+Enhanced version of the original Python syntax highlighting script. Based on
+``python.vim`` from Vim 6.1 distribution by Neil Schemenauer (nas at python dot
+ca). Check also `python.vim page on vim.org
+<http://www.vim.org/scripts/script.php?script_id=790>`_.
+
+Please use the following channels for reporting bugs, offering suggestions or
+feedback:
+
+- python.vim issue tracker: https://github.com/hdima/python-syntax/issues
+- Email: Dmitry Vasiliev (dima at hlabs.org)
+- Send a message or follow me for updates on Twitter: `@hdima
+  <https://twitter.com/hdima>`__
+
+Features
+--------
+
+Changes from the original ``python.vim`` are:
+
+- Added support for Python 3 syntax highlighting
+- Added ``:Python2Syntax`` and ``:Python3Syntax`` commands which allow to
+  switch between Python 2 and Python 3 syntaxes respectively without
+  reloads/restarts
+- Updated strings highlighting
+- Enhanced special symbols highlighting inside strings
+- Enhanced highlighting of numeric constants
+- Added optional highlighting for %-formatting inside strings
+- Added highlighting for magic comments: source code encoding and #!
+  (executable) strings
+- Added highlighting for new exceptions and builtins
+- Added highlighting for doctests
+- Added highlighting for new ``@decorator`` syntax introduced in Python 2.4a2
+- Added highlighting for the following errors:
+
+  - invalid symbols in source file
+  - mixing spaces and tabs
+  - invalid numeric constants
+  - invalid %-formatting inside strings
+  - invalid variable names
+  - trailing spaces (triggered by the ``python_highlight_space_errors`` option)
+
+Some of these features was later backported into the original ``python.vim``.
+
+How to install
+--------------
+
+The easiest installation method is to place `syntax/python.vim
+<https://github.com/hdima/python-syntax/blob/master/syntax/python.vim>`_ script
+into your ``~/.vim/syntax/`` directory.
+
+You can also use `Pathogen <https://github.com/tpope/vim-pathogen>`_ or `Vundle
+<https://github.com/gmarik/vundle>`_ plugin managers in which case you can
+install the whole `python.vim repository
+<https://github.com/hdima/python-syntax>`_ into the corresponding plugins
+directory.
+
+Script options
+--------------
+
+There are two commands to enable or disable an option:
+
+``:let OPTION_NAME = 1``
+  Enable option
+``:let OPTION_NAME = 0``
+  Disable option
+
+For example to enable all syntax highlighting features you can place the
+following command in your ``~/.vimrc`` script::
+
+  let python_highlight_all = 1
+
+Option and commands to select Python version
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+``python_version_2``
+  Enable highlighting for Python 2 (Python 3 highlighting is enabled by
+  default). Can also be set as a local to buffer ``b:python_version_2``
+  variable.
+
+The following local to buffer commands can be used to switch between two
+highlighting modes:
+
+``:Python2Syntax``
+  Switch to Python 2 highlighting mode
+``:Python3Syntax``
+  Switch to Python 3 highlighting mode
+
+Options used by the script
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+``python_highlight_builtins``
+  Highlight builtin functions and objects
+``python_highlight_builtin_objs``
+  Highlight builtin objects only
+``python_highlight_builtin_funcs``
+  Highlight builtin functions only
+``python_highlight_exceptions``
+  Highlight standard exceptions
+``python_highlight_string_formatting``
+  Highlight ``%`` string formatting
+``python_highlight_string_format``
+  Highlight syntax of ``str.format`` syntax
+``python_highlight_string_templates``
+  Highlight syntax of ``string.Template``
+``python_highlight_indent_errors``
+  Highlight indentation errors
+``python_highlight_space_errors``
+  Highlight trailing spaces
+``python_highlight_doctests``
+  Highlight doc-tests
+``python_print_as_function``
+  Highlight ``print`` statement as function for Python 2
+``python_highlight_all``
+  Enable all the options above. *NOTE: This option don't override any
+  previously set options*
+``python_slow_sync``
+  Can be set to 0 for slow machines
+
+Contributors
+------------
+
+List of the contributors in alphabetical order:
+
+- Andrea Riciputi
+- Anton Butanaev
+- Caleb Adamantine
+- Jeroen Ruigrok van der Werven
+- John Eikenberry
+- Marc Weber
+- Pedro Algarvio
+- Will Gray
+- Yuri Habrusiev

syntax/python.vim

@@ -1,33 +1,36 @@
 " Vim syntax file
 " Language:     Python
 " Maintainer:   Dmitry Vasiliev <dima at hlabs dot org>
-" URL:          https://github.com/hdima/vim-scripts/blob/master/syntax/python/python.vim
+" URL:          https://github.com/hdima/python-syntax
-" Last Change:  2013-03-10
+" Last Change:  2013-08-11
 " Filenames:    *.py
-" Version:      3.3.0
+" Version:      3.3.4
 "
 " Based on python.vim (from Vim 6.1 distribution)
 " by Neil Schemenauer <nas at python dot ca>
 "
-" Bugs and feature requests can be reported through email
+" Please use the following channels for reporting bugs, offering suggestions or
-" <dima at hlabs dot org>, GitHub at:
+" feedback:
-"
+
-"   https://github.com/hdima/vim-scripts/issues
+" - python.vim issue tracker: https://github.com/hdima/python-syntax/issues
-"
+" - Email: Dmitry Vasiliev (dima at hlabs.org)
-" , or Twitter:
+" - Send a message or follow me for updates on Twitter: `@hdima
-"
+"   <https://twitter.com/hdima>`__
-"   https://twitter.com/hdima
 "
 " Contributors
 " ============
 "
-"   Jeroen Ruigrok van der Werven
+" List of the contributors in alphabetical order:
-"   Pedro Algarvio
+"
-"   John Eikenberry
-"   Caleb Adamantine
 "   Andrea Riciputi
 "   Anton Butanaev
+"   Caleb Adamantine
+"   Jeroen Ruigrok van der Werven
+"   John Eikenberry
 "   Marc Weber
+"   Pedro Algarvio
+"   Will Gray
+"   Yuri Habrusiev
 "
 " Options
 " =======
@@ -88,8 +91,8 @@ endif
 "
 " Commands
 "
-command! -buffer Python2Syntax let b:python_version_2 = 1 | if exists("g:syntax_on") | syn off | endif | syn enable
+command! -buffer Python2Syntax let b:python_version_2 = 1 | let &syntax=&syntax
-command! -buffer Python3Syntax let b:python_version_2 = 0 | if exists("g:syntax_on") | syn off | endif | syn enable
+command! -buffer Python3Syntax let b:python_version_2 = 0 | let &syntax=&syntax
 
 " Enable option if it's not defined
 function! s:EnableByDefault(name)
@@ -100,12 +103,15 @@ endfunction
 
 " Check if option is enabled
 function! s:Enabled(name)
-  return exists(a:name) && {a:name} != 0
+  return exists(a:name) && {a:name}
 endfunction
 
 " Is it Python 2 syntax?
 function! s:Python2Syntax()
-  return s:Enabled("b:python_version_2") || s:Enabled("g:python_version_2")
+  if exists("b:python_version_2")
+      return b:python_version_2
+  endif
+  return s:Enabled("g:python_version_2")
 endfunction
 
 "
@@ -154,7 +160,8 @@ if s:Python2Syntax()
   syn keyword pythonPreCondit   as
   syn match   pythonFunction    "[a-zA-Z_][a-zA-Z0-9_]*" display contained
 else
-  syn keyword pythonStatement   as nonlocal False None True
+  syn keyword pythonStatement   as nonlocal None
+  syn keyword pythonBoolean     True False
   syn match   pythonFunction    "\%([^[:cntrl:][:space:][:punct:][:digit:]]\|_\)\%([^[:cntrl:][:punct:][:space:]]\|_\)*" display contained
 endif
 
@@ -365,7 +372,8 @@ syn match   pythonFloat		"\<\d\+\.\d*\%([eE][+-]\=\d\+\)\=[jJ]\=" display
 
 if s:Enabled("g:python_highlight_builtin_objs")
   if s:Python2Syntax()
-    syn keyword pythonBuiltinObj	True False None
+    syn keyword pythonBuiltinObj	None
+    syn keyword pythonBoolean		True False
   endif
   syn keyword pythonBuiltinObj	Ellipsis NotImplemented
   syn keyword pythonBuiltinObj	__debug__ __doc__ __file__ __name__ __package__
@@ -518,6 +526,8 @@ if version >= 508 || !exists("did_python_syn_inits")
   HiLink pythonHexError         Error
   HiLink pythonBinError         Error
 
+  HiLink pythonBoolean          Boolean
+
   HiLink pythonBuiltinObj       Structure
   HiLink pythonBuiltinFunc      Function