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detect EMCurses
* Emscripten can be used (theoretically) to build a host-only platform-independant version
of SciTECO (running under node.js instead of the browser).
* I ported netbsd-curses with Emscripten for that purpose. Therefore, adaptions for running
in the browser are restricted to EMcurses now.
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support
* Since netbsd-curses can act as a drop-in replacement to ncurses,
SciTECO builds with --with-interface=ncurses as well.
However, it is unintuitive for users to build with ncurses support
when actually linking against netbsd-curses; so another option has been added.
* The UNIX/TTY specific code (which works with both ncurses and netbsd-curses)
was selected when NCURSES was detected at build-time.
This does not work for netbsd-curses, so we define a new symbol
NETBSD_CURSES. At build-time, a CURSES_TTY macro may now be defined.
* This effectively fixes the stdio in interactive mode, window titles
and the XTerm clipboard support for netbsd-curses.
Some minor features like the reduced ESCDELAY are still broken.
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* shouldn't really be an issue but since we already have
CTL_KEY_ESC_STR as a character literal, we may as well use it.
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* a simple cast was missing due to C++ aliasing rules
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* it turns out that option-like arguments could not be reliably passed to
SciTECO scripts for two reasons:
a) "--" arguments are not removed from argv by GOption if it detects
and following option-like argument.
"--" would thus be passed as a script argument which will disable
option parsing in scripts that interpret "--".
b) A script run via the Hash-Bang line "#!...sciteco -m" would
require an explicit "--" to turn of GOption parsing.
However it is __impossible__ to insert after the script file name
on UNIX.
* Therefore, SciTECO now removes leading "--" arguments left over by GOption.
* If possible (Glib >= 2.44), option parsing is performed in strict POSIX
mode which inhibits parsing after the first non-option argument.
This reduces the number of cases where an explicit "--" is required.
* --mung no longer takes an argument. Instead, the first non-option argument
is expected to be the script file name.
This looks weird at first but is more consistent with how other interpeters
work. Once we revise argument passing to scripts, the script name can also
be passed to the script which is more consistent with it being the first
non-option argument.
Also, with strict POSIX parsing, this fixed Hash-Bang lines since
the script file name constructed by the kernel will automatically switch
off option parsing, passing all option-like script arguments uninterpreted
to the script.
* Since we're supporting Glib < 2.44, the Hash-Bang lines are still broken
for certain builds.
Therefore, a wrapper script is installed to libexecdir (it never has to be
executed by users and Hash-Bang lines need absolute paths anyway) which
transparently inserts "--" into the SciTECO command line and should be used
as the interpreter in portable SciTECO scripts.
The wrapper script is generated and points to the exact SciTECO binary
installed. This is important when doing parallel installs of Curses and Gtk
binaries since each one will get its own working wrapper script.
The wrapper-script workaround can be removed once we depend on Glib >= 2.44
(some day...).
* The default /usr/bin/env Hash-Bang lines are no longer used in the
scripts since they are broken anyway (UNIX incl. Linux cannot pass
multiple arguments to the interpreter!).
Scripts that get installed will get a fixed-up Hash-Bang line referring
to the installed SciTECO binary anyway.
* Interface::main() has been renamed to Interface::init() and is optional
now. The Interface::main() method was introduced because of the misconception
that interfaces will find their options in the argv array and have to do
their own parsing.
This is wrong, since their option group already cares about parsing.
Therefore, gtk_init() does not have to called explicitly, too.
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* mapped to different registers beginning with "~"
* on supported platforms accessing the clipboard is as easy as
X~ or G~.
Naturally this also allows clipboards to be pasted in
string arguments/insertions (^EQ~).
* Currently, Gtk+, PDCurses and ncurses/XTerm are supported.
For XTerm clipboard support, users must set 0,256ED to enable
it since we cannot check for XTerm window ops programmatically
(at least without libX11).
* When clipboard regs exist, the clipboard can also be deemed functional.
This allows macros to fall back to xclip(1) if necessary.
* EOL handling has been moved into a new file eol.c and eol.h.
EOL translation no longer depends on GIOChannels but can be
memory-backed as well.
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* this has been prepared a long time ago
* the popup widget does not in any way depend on the InterfaceCurses
class and could be used elsewhere.
* common and generic Curses drawing functions required by both the
Curses UI and the CursesInfoPopup widget have been factored out
into curses-utils.cpp (namespace Curses)
* this improved the UI-logic separation and helped in making
interface-curses.cpp smaller
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* use libtool convenience libraries as much as possible
(for all static libraries except Scintilla)
* improves separation of language and user interface implementations
(e.g. the Gtk widgets are not interesting for the rest of SciTECO)
* the Curses popup widget can now be factored out of interface-curses.cpp
* some common CPPFLAGS are now defined by ./configure via AM_CPPFLAGS,
so they don't have to be repeated in each submodule.
* fixed building the Curses UI: GTK_FLOW_BOX_FALLBACK conditional
must always be defined.
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