[PATCH 0/3] Implementing filename completion in cmd

[Eric Pouech]

The following series implements filename completion in cmd, à la Windows
(tab (resp. shift-tab) rotates in alphabetical order (resp. backwards alpha
order) the available filenames starting with a given prefix).

It requires two fixes in programs/conhost.

Notes to Jacek
- for the second patch, I tried to pick most of the APIs requiring 
  cursor positionning. I wonder if SetConsoleCursorPosition (when y is
  outside a given interval) shouldn't be part of it (no concrete example
  at sight, just wild thinking) (something like deltay < -5 || deltay > 0)
  (This can be done later on anyway)

Signed-off-by: Eric Pouech <eric.pouech at gmail.com>
---

Eric Pouech (3):
      programs/conhost: correctly recompute start of edit line on ReadConsole
      programs/conhost: support relative cursor positionning
      programs/cmd: implement filename completion


 programs/cmd/batch.c       | 279 ++++++++++++++++++++++++++++++++++++-
 programs/conhost/conhost.c |  22 ++-
 programs/conhost/conhost.h |   1 +
 3 files changed, 294 insertions(+), 8 deletions(-)