The reported number of recorded changes since the last tagged version was off
by one (because it counted the change that set the tag).
Also added a note that -K32M is not needed when using new-comp. But -old-comp
is still available as a configuration option, so I'm keeping -K32M for now.
The parser works on raw byte sequences read from source files. If parsing
succeeds the raw byte sequences are converted to proper Unicode characters
in a later phase. But the parser calls the function buildAnyTree, which can
fail and generate error messages containing source code fragments, which might
then containing raw byte sequences. To render these error messages correctly,
they need to be converted in accordance with the coding flag in the source
file. This is now done for UTF-8-encoded source files, but should ideally also
be done for other character encodings. (Latin-1-encoded files never suffered
from this problem, since raw bytes are proper Unicode characters in this case.)
+ Instead of "Internal error in ...", you now get a proper error message with
a source location and a function name.
+ Also added some missing error value propagation in the partial evaluator.
+ Also some other minor cleanup and error handling fixes.
This makes it possible to download PGF files from servers where the PGF service
is installed.
I am also considering making commmand=download the default instead of
command=grammar.
It failed to delay table selection when the selector contains a run-time
variable, causing "gf: Prelude.(!!): index too large" instead.
Also:
+ Show better source locations on unexpected errors, to aid bug hunting.
+ Removed unused SourceGrammar argument to value2term.
The work done by the partial evaluator is now divied in two stages:
- A static "term traversal" stage that happens only once per term and uses
only statically known information. In particular, the values of lambda bound
variables are unknown during this stage. Some tables are transformed to
reduce the cost of pattern matching.
- A dynamic "function application" stage, where function bodies can be
evaluated repeatedly with different arguments, without the term traversal
overhead and without recomputing statically known information.
Also the treatment of predefined functions has been reworked to take advantage
of the staging and better handle partial applications.
* Evaluate operators once, not every time they are looked up
* Remember the list of parameter values instead of recomputing it from the
pattern type every time a table selection is made.
* Quick fix for partial application of some predefined functions.
* -new-comp (the new partial evaluator) is now chosen by default when you run
cabal install (or cabal configure). To revert to using the old partial
evaluator by default, use "cabal install -f-new-comp" (or
"cabal configure -f-new-comp").
* Regardless of the configured default, you can choose which partial evaluator
to use when you invoke gf by using the -new-comp or -old-comp command line
option.
* The cc command in the GF shell uses the chosen partial evaluator by default,
but you can override this by using "cc -new" or "cc -old".
The plan is that these flags will be romeved in a future version.
After pressing the "i" button to view grammar info, there is now a
"More info" button to get more detailed information about all categories and
functions in the grammar.
Using
%!encoding:utf-8
in txt2tags files ensures that the generated HTML includes an appropriate
charset declaration. This way we avoid relying on browser defaults, which can
be wrong.
To make definitions that span multiple lines more readable in guided mode,
preserve line breaks and indentation when lin and oper definitions are
displayed and edited in guided mode.
Bug fix: moving the cursor by clicking and selecting text by dragging did
not work in textareas and input fields, because those mouse event were
intercepted by the sort-by-drag-and-drop handler.
instead of GET, to avoid the Apache httpd URI length limitation.
This means that gfse can no longer use JSONP when parsing grammars, so it
has to be located on the same host as the cloud service.
Also clean away trailing white space in support.js.
The pretty printer produced
mkDet pre {"a"; "an" / vowel} Sg
which is not accepted by the parser. The parser assigns pre { ... }, to
prededence level 4, and this is now reflected in the pretty printer, so
it prints
mkDet (pre {"a"; "an" / vowel}) Sg
(This caused a problem in GFSE since it parsers pretty printed grammars...)
This is done by including a lin_action when starting the syntax editor from
the minibar.
Also: added some minibar options in the syntax editor for consistency...
Note that some of the graphviz functions have backwards incompatible changes
that might also affect other clients of the PGF run-time library.
Also added graphvizDefaults and export it together with GraphvizOptions from
the PGF run-time library.
+ Transfer current astract syntax tree when activating the syntax editor
from the minibar.
+ Add options to start the minibar with given input. You need to include
the current grammar url, the current language and the input, like this:
initial_grammar: "/grammars/Foods.pgf",
initial: { from: "FoodsEng", input:["that","fish","is","fresh"]}
+ Fix a style sheet clash.
Created the folder js and moved minibar/support.js and minibar/pgf_online.js
there, to emphasize their status as app independent support libraries.
There are probably more files that should be moved here.
The cloud apps have been updated, externally hosted apps that link directly
to our server need to be updated too.
The browse command used to have a required parameter id=... and it returned
info on the given identifier only. Now, if format=json, the id=... parameter
can be omitted to get info on all identifiers at the same time. The returned
JSON structure in this case is
{cats:{...},funs:{...}}
where the inner objects contain one field per category and function,
respectively, in the same format as when you request info on one category or
function.
GF.Compile.Compute.ConcreteNew + two new modules contain a new
partial evaluator intended to solve some performance problems with the old
partial evalutator in GF.Compile.Compute.ConcreteLazy. It has been around for
a while, but is now complete enough to compile the RGL and the Phrasebook.
The old partial evaluator is still used by default. The new one can be activated
in two ways:
- by using the command line option -new-comp when invoking GF.
- by using cabal configure -fnew-comp to make -new-comp the default. In this
case you can also use the command line option -old-comp to revert to the old
partial evaluator.
In the GF shell, the cc command uses the old evaluator regardless of -new-comp
for now, but you can use "cc -new ..." to invoke the new evaluator.
With -new-comp, computations happen in GF.Compile.GeneratePMCFG instead of
GF.Compile.Optimize. This is implemented by testing the flag optNewComp in
both modules, to omit calls to the old partial evaluator from GF.Compile.Optimize
and add calls to the new partial evaluator in GF.Compile.GeneratePMCFG.
This also means that -new-comp effectively implies -noexpand.
In GF.Compile.CheckGrammar, there is a check that restricted inheritance is used
correctly. However, when -noexpand is used, this check causes unexpected errors,
so it has been converted to generate warnings, for now.
-new-comp no longer enables the new type checker in
GF.Compile.Typeckeck.ConcreteNew.
The GF version number has been bumped to 3.3.10-darcs
There was 55 lines of rather repetitive code with calls to 6 compiler passes.
They have been replaced with 19 lines that call the 6 compiler passes
plus 26 lines of helper functions.
The output from commands is represented as ([Expr],String), where the [Expr] is
used when data is piped between commands and the String is used for the final
output. The String can represent the same list of trees as the [Expr] and/or
contain diagnostic information.
Sometimes the data that is piped between commands is not a list of trees, but
e.g. a string or a list of strings. In those cases, functions like fromStrings
and toStrings are used to encode the data as a [Expr].
This patch introduces a newtype for CommandOutput and collects the functions
dealing with command output in one place to make it clearer what is going on.
It also makes it easier to change to a more direct representation of piped
data, and make pipes more "type safe", if desired.
hallgren