- this stop problems caused by a "-case .." specification

  Previously  args.globalCaseName() + ".Ext"  resulted in silly names
  eg, "...png", or "surface-...stl"

* remove repeated slashes
      /abc////def        -->   /abc/def

* remove '/./'
      /abc/def/./ghi/.   -->   /abc/def/./ghi
      abc/def/./         -->   abc/def

* remove '/../'
      /abc/def/../ghi/jkl/nmo/..   -->   /abc/ghi/jkl
      abc/../def/ghi/../jkl        -->   abc/../def/jkl

* remove trailing '/'

Mark Olesen authored 15 years ago and Andrew Heather committed 15 years ago

- still needs more fleshing out, but introduce the method for now and
  add more code later (without recompiling everything else).

- still needs more fleshing out, but introduce the method for now and
  add more code later (without recompiling everything else).

- use shift-right instead of shift-left formulation to avoid wrong behaviour
  with non-optimized compilation when the packed items fit exactly in the
  available number of bits.

Mark Olesen authored 15 years ago and Andrew Heather committed 15 years ago

- use shift-right instead of shift-left formulation to avoid wrong behaviour
  with non-optimized compilation when the packed items fit exactly in the
  available number of bits.

This reverts commit 82e59fa1.

- avoid ambiguities caused by relative paths

- contains the name part of the FOAM_CASE environment variable