Patch for Vim 7

The patch adds some functions to the Vim Python interface. The functions enable a Python script to write directly into the Vim's internal representation of the screen and read some information that isn't (always) exposed in unpatched Vim. A patched, configured and compiled version of Vim will have the feature "+python_screen" enabled.

The patch modifies the following Vim 7.2 files: if_python.c, eval.c, version.c, configure.in, config.h.in. The patch for Vim 7.3 modifies additional files: if_python3.c and if_py_both.h.

The features provided by the patch are enabled with the configure option --enable-pythonscreen.

Applying the patch

Linux:

Copy the file pythonscreen_XXX.patch into the directory vim/src

Apply the patch:

cd vim/src
patch < pythonscreen_XXX.patch

Update configure script
```
make autoconf
```

This step will create a new auto/configure script. Check the warnings in Makefile comments.

Configure Vim for building:

# Example bash script. Notice --enable-pythonscreen option.
export CONF_OPT_PYTHON='--enable-pythoninterp --enable-pythonscreen'
export CONF_OPT_GUI='--enable-gnome-check'
export CONF_OPT_PERL='--enable-perlinterp'
export CONF_OPT_TCL='--enable-tclinterp --with-tcl=tclsh8.4'
export CONF_OPT_RUBY='--enable-rubyinterp'
export CONF_OPT_MZSCHEME='--disable-mzschemeinterp'
export CONF_OPT_CSCOPE='--enable-cscope'
export CONF_OPT_MULTIBYTE='--enable-multibyte'
export CONF_OPT_FEAT='--with-features=huge'
export CONF_OPT_COMPBY='"--with-compiledby=Me"'
export CONF_ARGS='--prefix=/usr'
export CONF_ARGS="$CONF_ARGS "'--with-vim-name=vim.gnome --with-modified-by="Me"'

Build Vim:
```
make reconfig
```

If all went well, vim.gnome was created in the directory vim/src.

Windows:

Copy the file pythonscreen_XXX.patch into the directory vimsrc
Apply the patch:
```
cd vim\src
patch < pythonscreen\_XXX.patch
```
The following links may be useful (you may need to convert EOLs in all vim files and the patch to CR-LF with unix2dos): http://gnuwin32.sourceforge.net/packages/patch.htm http://gnuwin32.sourceforge.net/packages/cygutils.htm

Build vim

GUI version (all on one line):

 nmake -f Make_mvc.mak FEATURES=HUGE GUI=yes
     PYTHON=c:\python26 DYNAMIC_PYTHON=yes PYTHON_VER=26
     IME=yes CSCOPE=yes "DEFINES=-DFEAT_PYTHON_SCREEN"

Console version (all on one line):

 nmake -f Make_mvc.mak FEATURES=HUGE GUI=no
     PYTHON=c:\python26 DYNAMIC_PYTHON=yes PYTHON_VER=26
     IME=yes CSCOPE=yes "DEFINES=-DFEAT_PYTHON_SCREEN"

Make sure there is the correct path in PYTHON and the correct version in PYTHON_VER. You may have to run 'nmake -f Make_mvc.mak clean' between the above builds.