instead of having them "not implemented" (and consequently getting
errors), just let requires(), system(), mkpath(), write_file(), touch()
and cache() do nothing. this is likely to cause followup failures which
are harder to detect, but the amount of scary noise we are producing now
is not really acceptable. furthermore, in qtcreator these failures
actually terminate the "precise" evaluation, which breaks Run
Configurations.

Task-number: QTBUG-28159
Task-number: QTCREATORBUG-8550 (in different repo)
Change-Id: I1bdeb759e895e4200f09332dadf8a6cef348182f
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

in the case of sprintf it's surprising, in the case of join it's
anti-thetical.

Change-Id: I4eb7e56d31ac6ed68adf852f1a19b33554d38eb4
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
(cherry picked from qtbase/ae94bf2b7a6373def9239ae5f54b143e1f6ffe09)

it's a pretty braindead thing to implement control flow statements as
(built-in) functions.

as a "side effect", this fixes return() value handling for lists.

(cherry picked from qtcreator/f53ed6c4b3feca59a94d4f0de8b1a7411122e30e)
(cherry picked from qtcreator/f529e22ec38fb9a656d74394e484d2453cf42c69)
Change-Id: I59c8efa0e4d65329327115f7f8ed20719e7f7546
Reviewed-by: Qt Doc Bot <qt_docbot@qt-project.org>
Reviewed-by: Joerg Bornemann <joerg.bornemann@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
(cherry picked from qtbase/8400896cfe3fbef7666329a2920bd0dbdd5890af)
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

#!/usr/bin/env ruby

Dir.glob('**/*.cpp') { |file|
  # skip ast (excluding paste, astpath, and canv'ast'imer)
  next if file =~ /ast[^eip]|keywords\.|qualifiers|preprocessor|names.cpp/i
  s = File.read(file)
  next if s.include?('qlalr')
  orig = s.dup
  s.gsub!(/\n *if [^\n]*{\n[^\n]*\n\s+}(\s+else if [^\n]* {\n[^\n]*\n\s+})*(\s+else {\n[^\n]*\n\s+})?\n/m) { |m|
    res = $&
    if res =~ /^\s*(\/\/|[A-Z_]{3,})/ # C++ comment or macro (Q_UNUSED, SDEBUG), do not touch braces
      res
    else
      res.gsub!('} else', 'else')
      res.gsub!(/\n +} *\n/m, "\n")
      res.gsub(/ *{$/, '')
    end
  }
  s.gsub!(/ *$/, '')
  File.open(file, 'wb').write(s) if s != orig
}

Change-Id: I3b30ee60df0986f66c02132c65fc38a3fbb6bbdc
Reviewed-by: hjk <qthjk@ovi.com>
(cherry picked from qtcreator/29a93998df8405e8799ad23934a56cd99fb36403)
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

this is undeniably a new feature, but it's needed for a bugfix.

Change-Id: I951a3128eb580404ee0c7e3cdcb4d6170e899f70
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
(cherry picked from qtbase/87054805872429c1c17135f9ae5364b050d3fdff)
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

Change-Id: I9b11dc8309c9739955e3acea12b564d6ad608f59
Reviewed-by: Akseli Salovaara <akseli.salovaara@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>

When writing a file with write_file() we have to inform the pro file parser
cache to discard the file if it's existant in the cache, to ensure that
calling include() after write_file() always works.

Change-Id: I7d09269a57de55ca30b0e11dd40770de9f919f64
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
(cherry picked from qtbase/f45d6414ad6ef1d75f049a61411cd954bcae29c3)
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

Change copyrights and license headers from Nokia to Digia

Change-Id: If89e41b25a242ff376eacdf8790957bcf499cc66
Reviewed-by: Janne Anttila <janne.anttila@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

Change-Id: I66ec46dd87f922094f6937b50cc40e02ef08cc86
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>