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* allowed me to remove some obscure global functions and methods like
QRegister::update_string().
* Document updating is concentrated in qregisters.cpp now
* also fixes some bugs introduced earlier, like undo tokens being
generated for non-undo registers (resulting in segfaults on rubout)
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The user interface provides a Scintilla view abstraction and
every buffer is based on a view. All Q-Register strings use
a single dedicated view to save memory and initialization time
when using many string registers.
* this means we can finally implement a working lexer configuration
and it only has to be done once when the buffer is first added
to the ring. It is unnecessary to magically restore the lexer
styles upon rubout of EB (very hard to implement anyway). It
is also not necessary to rerun the lexer configuration macro
upon rubout which would be hard to reconcile with SciTECO's
basic design since every side-effect should be attached to a
character.
* this means that opening buffers is slightly slower now
because of the view initialization
* on the other hand, macros with many string q-reg operations
are faster now, since the document must no longer be changed
on the buffer's view and restored later on.
* also now we can make a difference between editing a document
in a view and changing the current view, which reduces UI calls
* the Document class has been retained as an abstraction about
Scintilla documents, used by QRegister Strings.
It had to be made virtual, so the view on which the document
is created can be specified by a virtual function.
There is no additional space overhead for Documents.
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* the GError expection has been renamed to GlibError, to avoid
nameclashes when working from the SciTECO namespace
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normally, since SciTECO is not a library, this is not strictly
necessary since every library should use proper name prefixes
or namespaces for all global declarations to avoid name clashes.
However
* you cannot always rely on that
* Scintilla does violate the practice of using prefixes or namespaces.
The public APIs are OK, but it does define global functions/methods,
e.g. for "Document" that clashed with SciTECO's "TECODocument" class at
link-time.
Scintilla can put its definitions in a namespace, but this feature
cannot be easily enabled without patching Scintilla.
* a "SciTECO" namespace will be necessary if "SciTECO" is ever to be
turned into a library. Even if this library will have only a C-linkage
API, it must ensure it doesn't clutter the global namespace.
So the old "TECODocument" class was renamed back to "Document"
(SciTECO::Document).
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the expression stack
now it's more like standard TECO's ^U command
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* there is no reasonable default value for U
* omitting the parameter for U might be a frequent programming error
* U can be colon-modified now, in which case it may be used
* to check for the presence of arguments in macros
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this breaks many existing scripts, and means you may have to rebuild SciTECO
with ./configure --enable-bootstrap
The syntax of SciTECO might change in backwards-incompatible until
version 1.0 is released.
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* referencing temporaries is unreliable/buggy in GNU C++, at least since v4.7
* in higher optimization levels it resulted in massive memory corruptions
* this is responsible for the build issues (PPA build issues)
* instead, always declare a buffer on the stack which guarantees that the
variable lives long enough
* the g_strdup(CHR2STR(x)) idiom has been replaced with String::chrdup(x)
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* results in better error messages, e.g. when opening files
* the case that a file to be opened (EB) exists but is not readably is handled for the first time
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* specifications resulted in runtime errors (unexpected exception) when bad_alloc ocurred
* specs should be used scarcely: only when the errors that may be thrown are all known
and for documentary purposes
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* when an error is thrown, stack frames are collected on clean up, up to
the toplevel macro
* the toplevel macro decides how to display the error
* now errors in interactive and batch mode are displayed differently
* in batch mode, a backtrace is displayed as a sequence of messages
* Execute::file() forwards errors correctly
* the correct error in the file is displayed in interactive mode
* necessary to build the stack trace
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init_priority attribute
* we cannot use weak symbols in MinGW, so we avoid init_priority for symbol
initialization by compiling the empty definitions into
sciteco-minimal but the real ones into sciteco
(had to add new file symbols-minimal.cpp)
* this fixes compilation/linking on LLVM Clang AND Dragonegg
since their init_priority attribute is broken!
this will likely be fixed in the near future but broken versions
will be around for some time
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* they might not already exist, yielding bogus errors
* in case the register might be initialized we do not want to do so in parse-only-mode
* this fix is only a workaround: currently we must return a register sind got_register() expects one
and must be called to determine the next state in parse only mode
* proper solution would be to better separate parsing and execution
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* flow control and other structures have not been documented this ways.
I have not yet decided whether they should be documented in separate
sections or use the documentation tool.
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* useful for using macro libraries
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* storage size should always be 64 (gint64) to aid macro portability
* however, for performance reasons users compiling from source might
explicitly compile with 32 bit integers
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* Scintilla is now initialized from main() using Interface::main()
* Scintilla initialization depends on initialization of objects in the
global namespace (otherwise the Lexer catalogue may not be filled
properly and lexing may not work). Lexer modules were initialized
after SciTECO interface initialization
* merged Scintilla initialization (Interface::main()) with interface
option parsing
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* distinction no longer useful since string part of register
is now never pre-initialized
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* also encapsulates data properly (previously there were many public
attributes to avoid permission issues)
* new class also cares about saving/and restoring scroll state.
now, buffer/q-reg edits and temporary accesses do not reset
the scroll state anymore.
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* enabled for all modifying Q-Reg commands
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syntax is as follows: ["."]("#" CHR1 CHR2 | "{" STRING_BUILDING "}" | CHR1)
* the short one/two char names are turned upper case, while no
case folding is performed on verbose names
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occurs when rubbing out a switch from q-reg string or to q-reg string
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allows commandline editing scripted by macros
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* there was a dependency on interface initialization.
it did not cause issues because destruction order was
by chance.
* introduced INIT_PRIO and PRIO_* macros to easy initialization order declaration
(using a PRIO_* formula makes code self-documenting)
* also used this to clean up QRegisterTable initialization
(we do not need the explicit initialize() method)
* also used to clean up symbols initialization
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* parser.cpp|h should be reserved for generic and misc. stuff.
the StateExpectQReg class is used almost exclusively by qregisters.cpp|h
* resolves a circular header dependency issue
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