-For Next Release
-================
+Ragel 6.2 - May 9, 2008
+=======================
+ -Bug fix: The lm_switch actions needs to set p from tokend when there is no
+ user action.
+ -Bug fix: when not using indicies we can't use a transitions's id to identify
+ the eof transition to take. Instead add the transition to the end of the
+ transition list and store its position in a new var called pos. The pos var
+ is then used as the index.
+ -Bug fix: an fnext followed by an fbreak in -G2 was not working. The fbreak
+ was not aware that the fnext causes the cs variable to be forced active. In
+ this case fbreak does not need to save cs because it is already current.
+ -Bug fix: need to compute the low and high character-space keys from the
+ condition-trans overlap when computing an expansion. Can't use the range
+ supplied from the condition overlap since they may not match. An incorrect
+ machine that accepted 1(!cond1, !cond2) was generated for the following
+ grammar. This bug was reported by Tim Chklovski.
+ c = 2 @matched_c;
+ sc1 = 1..2 when cond1;
+ sc2 = 1..2 when cond2;
+ main := sc1 | c | sc2;
+ -Bug fix: error messages in start label analysis of join operations were
+ causing assertion failures because location info was not set. Fixed by
+ adding locations.
+ -Include and import file searching now searches for the file name given based
+ on the location of the current file, not ragel's current path.
+ Additional search locations can be given using the -I option.
+ -Rubinius code generation was updated to the latest Rubinius. Patch from Evan
+ Phoenix.
+ -Switched from strcasecmp to strcmp for testing long arguments.
+ -Applied a patch from Andrei Polushin for setting the error message format.
+ --error-format=gnu (default)
+ --error-fromat=msvc
+ -Now using the _WIN32 define instead of _WIN32. Other MSVC compilation
+ improvments from Andrei Polushin.
+ -Added the hyperref package to the manual.
+
+Ragel 6.1 - Mar 26, 2008
+========================
+ -Scanners now ensure that any leaving actions at the end of a pattern are
+ executed. They are always executed before the pattern action.
+ -Added an option -d for turning off the removal of duplicate actions from
+ actions lists.
+ -Need to unset the final state status of the start state in kleene star if it
+ is set. It is possible to crash ragel when the warning is ignored.
+ -In the dot file generation we need to print any actions that are in
+ State::eofTrans. These come from scanners only.
+ -Use @docdir@ for the docdir Makefile variable.
+ -Check for ar and ranlib in the configure script.
+
+Ragel 6.0 - Jan 12, 2008
+========================
+ -Removed the 'noend' write option from examples/atoi.rl. This example is
+ referenced a lot as a first example and as such it shouldn't contain a
+ special purpose write option like 'noend'.
+ -Introcuded the "eof" variable for indicating the end of file. The p variable
+ is checked against eof when the processing loop reaches the end of a block.
+ If p == eof at this time then the EOF actions are executed. The variable is
+ required only when EOF actions have been emebedded.
+ -The "write eof" command is no longer needed and was removed.
+ -Scanners now use EOF actions to generate tokens. This eliminates the need to
+ flush the last token.
+ -Restructured the Java driver; a switch statement with fallthrough cases are
+ now used to emulate gotos.
+ -Ruby code generation was also restructured. Gotos are elmulated using a
+ series of if tests.
+ -Went back to 3.X semantics for >, % and error actions. The > operator also
+ embeds a leaving action/priority into the start state if it is final. If EOF
+ happens in a state with a leaving operator then the leaving action is
+ executed. If EOF happens in a non-final state that has an error action, the
+ error action is executed.
+ -The "ragel" program now executes frontend and backend processes separately,
+ connecting them with a temporary file in the current directory. Without the
+ -x option the "ragel" program marshals arguments and calls the frontend and
+ backend. With the -x option the "ragel" program acts as the frontend only.
+ -Added name finding for executables. If any forward slash is found in argv0
+ then it is assumed that the path is explicit and the path to the backend
+ executable should be derived from that. Whe check that location and also go
+ up one then inside a directory of the same name in case we are executing
+ from the source tree. If no forward slash is found it is assumed the file is
+ being run from the installed location. The PREFIX supplied during
+ configuration is used.
+ -On windows GetModuleFileNameEx is used to find out where the the current
+ process's binary is. That location is searched first. If that fails then we
+ go up one directory and look for the executable inside a directory of the
+ same name in case we are executing from the source tree.
+ -Changed the -l option in rlgen-cd to -L because it is covered in the
+ frontend. Added a passthrough in the frontend for the backend options.
+ -Dot file generation can now be invoked using the -V option to ragel. We
+ now require an input file. If standard in is used then we don't have a file
+ name on which to base the output.
+ -Able to build native windows executables using Cygwin+MinGW.
+ -Patch from David Waite: Large arrays are now created by copying in the data
+ from smaller arrays using System.arraycopy(). This eliminates the debug data
+ associated with explicit initialization statements. It is also much easier
+ on the java compiler which can run out of memory compiling very large
+ machines. The downside is that it takes slightly longer to initialize static
+ data at run time.
+ -The fbreak statement now advances p.
+ -In the :> :>> and <: operators it was possible for the priority assignment
+ to be bypassed via the zero length string. In :> this was fixed
+ automatically with the semantics change to the entering priority operator.
+ If the start state is final it now embeds a leaving action into it,
+ preventing persistance through the zero length string. In :>> and <: this
+ was fixed explicitly. With <: the entering priority operator was used and
+ with :> a special exception was added. Since it uses the finishing
+ transition operator it also adds a leaving priority to the start state if it
+ is final.
+ -Ranlib is now run on the archives. Patch from Kenny MacDermid.
+ -The case statement syntax in ruby code generation used a form depreciated in
+ Ruby 1.9. Updated it.
+ -Made a number of fixes that eliminate warnings in GCC 4.3. Mostly concern
+ the now depreciate automatic conversion of string contsants to "char*" type.
+ Other fixes include adding parenthesis around && within ||.
+ -The "tokstart" and "tokend" variables were changed to "ts" and "te".
+
+Ragel 5.25 - Dec 24, 2007
+=========================
+ -Fixed segfault reported by Ryan Phelps. Affected Java and Ruby code
+ generation. The dataExpr variable was not initialized.
+ -Fixed incorrect case label in test/runtests. Caused Objective-C tests to be
+ ignored.
+ -Added missing include to common.cpp.
+
+Ragel 5.24 - Sep 16, 2007
+=========================
+ -Applied patch from Victor Hugo Borja <vic@rubyforge.org>. This patch
+ implements -T1 -F0 -F1 and -G0 in the ruby code generator. Goto-driven code
+ generation is experimental and requires rubinius asm directives (specify
+ with --rbx option). These code generators pass all the ruby tests.
+ -If the condition embedding code runs out of available characters in the
+ keyspace an error message is emitted.
+ -The first example that appeared in the manual used the special-purpose
+ 'noend' write option. This caused confusion. Now a basic example appears
+ first.
+ -Added two new statements: prepush and postpop. These are code blocks that
+ are written out during call and return statements. The prepush code is
+ written immediately before pushing the current state to the state stack
+ during a call. The postpop code is written immediately after popping the
+ current state during return. These can be used to implement a dynamically
+ resizable stack.
+
+Ragel 5.23 - Jul 24, 2007
+=========================
+ -Eliminated the use of callcc as an alternative to goto. Instead, the named
+ breaks implementation used in the Java code generator is imitated using
+ control flow variables.
+ -Improved the error message given when there is a write statement but no
+ machine instantiations and hence no state machine.
+ -Documentation improvements: updates to "Machine Instantiation", "Write Init"
+ and "Write Exports" sectons. Added the "Variables Used by Ragel" section.
+ -Renamed "Entering Actions" to "Starting Actions."
+ -Other documentation updates.
+
+Ragel 5.22 - June 14, 2007
+==========================
+ -Bug fix: need to isolate the start state of a scanner before setting the
+ to-state and from-state actions which clear and set tokstart. This affected
+ very simple scanners only. Most scanners have an isolated start state due to
+ the pattern structure.
+ -Bug fix: when -S or -M was given the ragel version number was not emitted,
+ causing the backend to reject the intermediate format. From Tim Potter.
-The p varialbe is now set up at the beginning of a scanner action, rather
than at the end. This leaves scanner actions free to manipulate p and
removes the need for the special holdTE and execTE (TE for tokend) versions
before any control flow. We loose the ability to determine where in the
input stream a scanner action is executed, however this information is of
little use because it is primarily an artifact of the scanner implementation
- (sometimes the last char, other times later on). The gains of of this change
+ (sometimes the last char, other times later on). The gains of this change
are consistency and simplicity.
+ -The "data" variable (used in Java and Ruby code generation only) can now be
+ overridden using the variable statement.
Ragel 5.21 - May 9, 2007
========================
projects / external / ragel.git / blobdiff