Coccinelle release 1.0.0-rc12

Coccinelle release 1.0.0-rc12

** Language:
- Addition of initializer list metavariables.  Thanks to Michael Stefaniuc
  for noticing the need for them.
- Allow multiple position variables per token
- ++ can now be associated with - code
- Allow /* */ comments as smpl comments, not only as + code
- Add support for && (label addresses)
- local idexpression metavariable no longer matches static local x
- Consider using to be a comment in C++ code.  Patch submitted by Jani Monoses.
- Command line cocci
- print_main etc for ocaml Coccilib
- =~ not ~= is used to indicate a regular expression constraint on an
  identifier.  And !~ for a nonmatch.
- allow long double, short int, long int, and long long int in SmPL code.
- gcc constructors allowed in SmPL.  Thanks to Uwe Kleine-Koenig for
  pointing out the problem.
- Allow ! to appear before () in depends.  Thanks to SF Markus Elfring for
  noticing the problem.
- Can add code containing #pragma or #line.
- Multicharacter command-line options now begin with -- and contain -
  rather than _.
- Allow multiple types of hidden metavariables, each preceded by @.
  Position variables can be attached to these.
- Python code now receives a structure containing a list of matched
  elements for list metavariables.  Thanks to Michael Stefaniuc for
  suggesting this features.
- Python code now receives expressions and identifiers as ordinary strings,
  not as elements of specific structures.

** Features:
- Preserve spacing before // comments when not at the beginning of a line
- Adjusted parsing of endif to put it after jump code
- Improve warning message when using -use_cache
- More helpful initial value for exported variables in python
- Support - on expression nests
- Better handling of the case of a matched declaration that should only
  be replaced by other top level things.
- Allow a semantic patch beginning and ending with braces to match the
  complete body of a function if the braces are not removed and if nothing
  is added before the first brace or after the last one.
- Add -cache_prefix option, to specify where to put cached files.
- Allow module_init(foo); to match module_init(foo) (or likewise for any
  declarer), when no transformation is specified on the semicolon.
- Add Coccilib.exit() for ocaml code and cocci.exit() for python code,
  to abort the treatment of the current file.
- Don't multiply print the same patch for the same file
- Drop date in diff
- Don't repeat smpl type warnings
- -sp_file/-cocci_file are now optional.  If not present an argument that
  ends in .cocci is assumed to be the name of the file containing the
  semantic patch.
- Allow limiting the size of a named cache using -cache_limit
- Cache name specified with -cache_prefix is extended according to the
  index (parallelism), if any.
- Allow multi-character constants in C code and SmPL code.  Thanks to Kamil
  Pilch for pointing out the problem.
- Better parsing of K&R C functions.  No longer convert all parameters to
  typedefs.
- Implement newes as a hash table, for more efficiency on big sets of
  environments.
- A local variable that is declared without a type is not considered to be
  a local variable.  Actually, such a variable is probably really a macro
  that expends to a declaration, and this macro is not the variable name.
- Allow iteration to make modifications when the modifications are done
  inplace.
- -debug gives information about defined virtual rules and about virtual
  identifier bindings.
- no more crashing on c++-like code without the c++ argument.
- dependencies can have ! on ()
- Give ocaml code access to Flag and thus the current file name.
- Slightly more efficient handling of lists.
- Slightly better error message in the case of inconsistent paths
- Improve limited size caching
- Remove #ifdefs when everything else is removed

** Bugfix:
- Corrected parsing of script strings delimited by a single quote.  Thanks
  to Eugeniy Meshcheryakov for reporting the problem.
- Improved indentation of added ifdefs.
- Allow added comments and #ifdefs to precede other added code.  Thanks to
  Jani Monoses for noticing the problem.
- Corrected failure to due missing ocamlfind. Thanks to Derek M. Jones for
  reporting the problem.
- Allow fake nodes to be - in the allminus case, to drop tokens related to
  a function definition or forward declaration but before the first code
  mentioned in the semantic patch.
- Drop __init etc when deleting a whole function.
- Cause appropriate newlines to be preserved when multiple matches (trees)
  contain adjacent modifications derived from the same SmPL code.
- check_meta takes into account fresh identifier seed information.
- Types for worth-trying optimization should not be followed by space
- Improved filtering of result of matching atomic patterns
- Drop positions before creating function prototype rules
- Adjust position of { introduced by adding multiple statements in a
  single-statement position
- Drop newline after function call ( when all arguments on that line are
  eliminated
- Accept removal of a single declaration, replaced by arbitrary,
  non-declaration code
- smpl_spacing takes into account newlines, indentation
- Improved prevention of transformations on toplevel { ... } from causing
  changes outside function boundaries; also outside ifs, whiles, etc.
  Changes are still allowed on { ... } present for other reasons.
- Fix bug in include_match that caused everything to halt when all matches
  were discarded
- Don't call Insert_plus on rules that cannot be evaluated due to failed
  dependencies.
- Allow variable declaration right after a case in switch.
- The top of a loop is also after the body of a loop, for ... in loop body
- Do not anchor Str regexp at the beginning of the string to check
- Type annotation for C code uses most recent env for typedefs when
  possible.  Thanks to Andrea Canciani for pointing out the problem.
- Pretty print pointer types without a trailing space.  Thanks to Michael
  Stefaniuc for pointing out the problem.
- Propagate dependencies further in get_constants2
- Make lexer more dos friendly
- slightly better handling of long long
- Strip constraints from metavariables in function prototype treatment
  before comparison, due to incomparability of pcre regexps.
- Fixed obsolete regexp doc, thanks to Dmitry Osmakov
- Improved x || ... || y to avoid double modification
- Transparently allow \( \| and \) to be on lines beginning with -.  The -
  has no effect.
- Remove memory leak related to pr2_once management.  Thanks to Robert
  Gomulka for helping to solve the problem.  Don't use once hashtable if
  messages won't be printed anyway.
- Change the type of subtraction mixing pointer and array to have int result.
  Thanks to Robert Gomulka for noticing the problem.
- Fix interpretation of dependencies in the presence of virtual rules.
  Ignore constraints on inherited position metavariables in a rule that
  will be ignored.
- Better support meta iterator and meta declarer tokens, and symid tokens.
- Better indentation after added noindent.
- Fixed length bug in the treatment of structures.
- Allow inheriting declaration/field metavariables.
- Don't drop spaces after parentheses in when no minus code present.
  Thanks to Terry Wilson for reporting the problem.
- Keep inherited metavariables in asttomember (preprocessing for matching)
- allminus for types, to allow removing const, not just matching it
- improved pretty printing when something is added before a closed brace
- Allow matching on nameless structs.  Thanks to Ron Minnich for reporting
  the problem.
- Pretty printing of const/volatile arrays in smpl code.
- Don't allow just dropping an exp or type
- Avoid removing #endif when surrounded by - code