In the following log, modification dates are listed using the European
convention in which the day comes before the month (ie. DD/MM/YYYY).
The most recent modifications are listed first.

21/05/2001 mcs@astro.caltech.edu

           getline.c
             When vi-replace-char was used to replace the character at
             the end of the line, it left the cursor one character to
             its right instead of on top of it. Now rememdied.
           getline.c
             When undoing, to properly emulate vi, the cursor is now
             left at the leftmost of the saved and current cursor
             positions.
           getline.c man3/gl_get_line.3
             Implemented find-parenthesis (%), delete-to-paren (M-d%),
             vi-change-to-paren (M-c%), copy-to-paren (M-y%).
           cplfile.c pcache.c
             In three places I was comparing the last argument of
             strncmp() to zero instead of the return value of
             strncmp().

20/05/2001 mcs@astro.caltech.edu

           getline.c man3/gl_get_line.3
             Implemented and documented the vi-repeat-change action,
             bound to the period key. This repeats the last action
             that modified the input line.

19/05/2001 mcs@astro.caltech.edu

           man3/gl_get_line.3
             I documented the new action functions and bindings
             provided by Tim Eliseo, plus the ring-bell action and
             the new "nobeep" configuration option.
           getline.c
             I modified gl_change_editor() to remove and reinstate the
             terminal settings as well as the default bindings, since
             these have editor-specific differences. I also modified
             it to not abort if a key-sequence can't be bound for some
             reason. This allows the new vi-mode and emacs-mode
             bindings to be used safely.
           getline.c
             When the line was re-displayed on receipt of a SIGWINCH
             signal, the result wasn't visible until the next
             character was typed, since a call to fflush() was needed.
             gl_redisplay_line() now calls gl_flush_output() to remedy
             this.

17/05/2001 mcs@astro.catlech.edu

           getline.c
             Under linux, calling fflush(gl->output_fd) hangs if
             terminal output has been suspended with ^S. With the
             tecla library taking responsability for reading the stop
             and start characters this was a problem, because once
             hung in fflush(), the keyboard input loop wasn't entered,
             so the user couldn't type the start character to resume
             output.  To remedy this, I now have the terminal process
             these characters, rather than the library.

12/05/2001 mcs@astro.caltech.edu

           getline.c
             The literal-next action is now implemented as a single
             function which reads the next character itself.
             Previously it just set a flag which effected the
             interpretation of the next character read by the input
             loop.
           getline.c
             Added a ring-bell action function. This is currently
             unbound to any key by default, but it is used internally,
             and can be used by users that want to disable any of the
             default key-bindings.

12/05/2001 Tim Eliseo    (logged here by mcs)

           getline.c
             Don't reset gl->number until after calling an action
             function. By looking at whether gl->number is <0 or
             not, action functions can then tell whether the count
             that they were passed was explicitly specified by the
             user, as opposed to being defaulted to 1.
           getline.c
             In vi, the position at which input mode is entered
             acts as a barrier to backward motion for the few
             backward moving actions that are enabled in input mode.
             Tim added this barrier to getline.
           getline.c
             In gl_get_line() after reading an input line, or
             having the read aborted by a signal, the sig_atomic_t
             gl_pending_signal was being compared to zero instead
             of -1 to see if no signals had been received.
             gl_get_line() will thus have been calling raise(-1),
             which luckily didn't seem to do anything. Tim also
             arranged for errno to be set to EINTR when a signal
             aborts gl_get_line().
           getline.c
             The test in gl_add_char_to_line() for detecting
             when overwriting a character with a wider character,
             had a < where it needed a >. Overwriting with a wider
             character thus overwrote trailing characters. Tim also
             removed a redundant copy of the character into the
             line buffer.
           getline.c
             gl_cursor_left() and gl->cursor_right() were executing
             a lot of redundant code, when the existing call to the
             recently added gl_place_cursor() function, does all that
             is necessary.
           getline.c
             Remove redundant code from backward_kill_line() by
             re-implimenting in terms of gl_place_cursor() and
             gl_delete_chars().
           getline.c
             gl_forward_delete_char() now records characters in cut
             buffer when in vi command mode.
           getline.c
             In vi mode gl_backward_delete_char() now only deletes
             up to the point at which input mode was entered. Also
             gl_delete_chars() restores from the undo buffer when
             deleting in vi insert mode.
           getline.c
             Added action functions, vi-delete-goto-column,
             vi-change-to-bol, vi-change-line, emacs-mode, vi-mode,
             vi-forward-change-find, vi-backward-change-find,
             vi-forward-change-to, vi-backward-change-to,
             vi-change-goto-col, forward-delete-find, backward-delete-find,
             forward-delete-to, backward-delete-to,
             delete-refind, delete-invert-refind, forward-copy-find,
             backward-copy-find, forward-copy-to, backward-copy-to
             copy-goto-column, copy-rest-of-line, copy-to-bol, copy-line,
             history-re-search-forward, history-re-search-backward.

06/05/2001 Version 1.3.1 released.

03/05/2001 mcs@astro.caltech.edu

           configure.in
             Old versions of GNU ld don't accept version scripts.
             Under linux I thus added a test to try out ld with
             the --version-script argument to see if it works.
             If not, version scripts aren't used.
           configure.in
             My test for versions of Solaris earlier than 2.7
             failed when confronted by a three figure version
             number (2.5.1). Fixed.

30/04/2001 mcs@astro.caltech.edu

           getline.c
             In vi mode, history-search-backward and
             history-search-forward weren't doing anything when
             invoked at the start of an empty line, whereas
             they should have acted like up-history and down-history.
           Makefile.in Makefile.rules
             When shared libraries are being created, the build
             procedure now arranges for any alternate library
             links to be created as well, before linking the
             demos. Without this the demos always linked to the
             static libraries (which was perfectly ok, but wasn't a
             good example).
           Makefile.in Makefile.rules
             On systems on which shared libraries were being created,
             if there were no alternate list of names, make would
             abort due to a Bourne shell 'for' statement that didn't
             have any arguments. Currently there are no systems who's
             shared library configurations would trigger this
             problem.
           Makefile.rules
             The demos now relink to take account of changes to the
             library.
           configure.in configure
             When determining whether the reentrant version of the
             library should be compiled by default, the configure
             script now attempts to compile a dummy program that
             includes all of the appropriate system headers and
             defines _POSIX_C_SOURCE. This should now be a robust test
             on systems which use C macros to alias these function
             names to other internal functions.
           configure.in
             Under Solaris 2.6 and earlier, the curses library is in
             /usr/ccs/lib. Gcc wasn't finding this. In addition to
             remedying this, I had to remove "-z text" from
             LINK_SHARED under Solaris to get it to successfully
             compile the shared library against the static curses
             library.
           configure.in
             Under linux the -soname directive was being used
             incorrectly, citing the fully qualified name of the
             library instead of its major version alias. This will
             unfortunately mean that binaries linked with the 1.2.3
             and 1.2.4 versions of the shared library won't use
             later versions of the library unless relinked.

30/04/2001 mcs@astro.caltech.edu

           getline.c
             In gl_get_input_line(), don't redundantly copy the
             start_line if start_line == gl->line.

30/04/2001 Version 1.3.0 released.

28/04/2001 mcs@astro.caltech.edu

           configure.in
             I removed the --no-undefined directive from the linux
             LINK_SHARED command. After recent patches to our RedHat
             7.0 systems ld started reporting some internal symbols of
             libc as being undefined.  Using nm on libc indicated that
             the offending symbols are indeed defined, albeit as
             "common" symbols, so there appears to be a bug in
             RedHat's ld. Removing this flag allows the tecla shared
             library to compile, and programs appear to function fine.
           man3/gl_get_line.3
             The default key-sequence used to invoke the
             read-from-file action was incorrectly cited as ^Xi
             instead of ^X^F.

26/04/2001 mcs@astro.caltech.edu

           getline.c man3/gl_get_line.3
             A new vi-style editing mode was added. This involved
             adding many new action functions, adding support for
             specifying editing modes in users' ~/.teclarc files,
             writing a higher level cursor motion function to support
             the different line-end bounds required in vi command
             mode, and a few small changes to support the fact that vi
             has two modes, input mode and command mode with different
             bindings.

             When vi editing mode is enabled, any binding that starts
             with an escape or a meta character, is interpretted as a
             command-mode binding, and switches the library to vi
             command mode if not already in that mode. Once in command
             mode the first character of all keysequences entered
             until input mode is re-enabled, are quietly coerced to
             meta characters before being looked up in the key-binding
             table. So, for example, in the key-binding table, the
             standard vi command-mode 'w' key, which moves the cursor
             one word to the right, is represented by M-w. This
             emulates vi's dual sets of bindings in a natural way
             without needing large changes to the library, or new
             binding syntaxes. Since cursor keys normally emit
             keysequences which start with escape, it also does
             something sensible when a cursor key is pressed during
             input mode (unlike true vi, which gets upset).

             I also added a ^Xg binding for the new list-glob action
             to both the emacs and vi key-binding tables. This lists
             the files that match the wild-card expression that
             precedes it on the command line.

             The function that reads in ~/.teclarc used to tell
             new_GetLine() to abort if it encountered anything that it
             didn't understand in this file. It now just reports an
             error and continues onto the next line.
           Makefile.in:
             When passing LIBS=$(LIBS) to recursive invokations of
             make, quotes weren't included around the $(LIBS) part.
             This would cause problems if LIBS ever contained more
             than one word (with the supplied configure script this
             doesn't happen currently). I added these quotes.
           expand.c man3/ef_expand_file.3:
             I wrote a new public function called ef_list_expansions(),
             to list the matching filenames returned by
             ef_expand_file().

             I also fixed the example in the man page, which cited
             exp->file instead of exp->files, and changed the
             dangerous name 'exp' with 'expn'.
           keytab.c:
             Key-binding tables start with 100 elements, and are
             supposedly incremented in size by 100 elements whenever
             the a table runs out of space. The realloc arguments to
             do this were wrong. This would have caused problems if
             anybody added a lot of personal bindings in their
             ~/.teclarc file. I only noticed it because the number of
             key bindings needed by the new vi mode exceeded this
             number.
           libtecla.map
             ef_expand_file() is now reported as having been added in
             the upcoming 1.3.0 release.

25/03/2001 Markus Gyger  (logged here by mcs)

           Makefile.in:
             Make symbolic links to alternative shared library names
             relative instead of absolute.
           Makefile.rules:
             The HP libtecla.map.opt file should be made in the
             compilation directory, to allow the source code directory
             to be on a readonly filesystem.
           cplmatch.c demo2.c history.c pcache.c
             To allow the library to be compiled with a C++ compiler,
             without generating warnings, a few casts were added where
             void* return values were being assigned directly to
             none void* pointer variables.

25/03/2001 mcs@astro.caltech.edu

           libtecla.map:
             Added comment header to explain the purpose of the file.
             Also added cpl_init_FileArgs to the list of exported
             symbols. This symbol is deprecated, and no longer
             documented, but for backwards compatibility, it should
             still be exported.
           configure:
             I had forgotten to run autoconf before releasing version
             1.2.4, so I have just belatedly done so.  This enables
             Markus' changes to "configure.in" documented previously,
             (see 17/03/2001).

20/03/2001 John Levon   (logged here by mcs)

           libtecla.h
             A couple of the function prototypes in libtecla.h have
             (FILE *) argument declarations, which means that stdio.h
             needs to be included. The header file should be self
             contained, so libtecla.h now includes stdio.h.

18/03/2001 Version 1.2.4 released.

           README html/index.html configure.in
             Incremented minor version from 3 to 4.

18/03/2001 mcs@astro.caltech.edu

           getline.c
             The fix for the end-of-line problem that I released a
             couple of weeks ago, only worked for the first line,
             because I was handling this case when the cursor position
             was equal to the last column, rather than when the cursor
             position modulo ncolumn was zero.
           Makefile.in Makefile.rules
             The demos are now made by default, their rules now being
             int Makefile.rules instead of Makefile.in.
           INSTALL
             I documented how to compile the library in a different
             directory than the distribution directory.
             I also documented features designed to facilitate
             configuring and building the library as part of another
             package.

17/03/2001 Markus Gyger (logged here by mcs)

           getline.c
             Until now cursor motions were done one at a time. Markus
             has added code to make use the of the terminfo capability
             that moves the cursor by more than one position at a
             time. This greatly improves performance when editing near
             the start of long lines.
           getline.c
             To further improve performance, Markus switched from
             writing one character at a time to the terminal, using
             the write() system call, to using C buffered output
             streams. The output buffer is only flushed when
             necessary.
           Makefile.rules Makefile.in configure.in
             Added support for compiling for different architectures
             in different directories. Simply create another directory
             and run the configure script located in the original
             directory.
           Makefile.in configure.in libtecla.map
             Under Solaris, Linux and HPUX, symbols that are to be
             exported by tecla shared libraries are explicitly specified
             via symbol map files. Only publicly documented functions
             are thus visible to applications.
           configure.in
             When linking shared libraries under sparc-solaris,
             registers that are reserved for applications are marked
             as off limits to the library, using -xregs=no%appl when
             compiling with Sun cc, or -mno-app-regs when compiling
             with gcc. Also removed -z redlocsym for solaris, which
             caused problems under some releases of ld.
           homedir.c  (after minor changes by mcs)
             Under ksh, ~+ expands to the current value of the ksh
             PWD environment variable, which contains the path of
             the current working directory, including any symbolic
             links that were traversed to get there. The special
             username "+" is now treated equally by tecla, except
             that it substitutes the return value of getcwd() if PWD
             either isn't set, or if it points at a different
             directory than that reported by getcwd().

08/03/2001 Version 1.2.3 released.

08/03/2001 mcs@astro.caltech.edu

           getline.c
             On compiling the library under HPUX for the first time
             I encountered and fixed a couple of bugs:

             1. On all systems except Solaris, the callback function
                required by tputs() takes an int argument for the
                character that is to be printed. Under Solaris it
                takes a char argument. The callback function was
                passing this argument, regardless of type, to write(),
                which wrote the first byte of the argument.  This was
                fine under Solaris and under little-endian systems,
                because the first byte contained the character to be
                written, but on big-endian systems, it always wrote
                the zero byte at the other end of the word. As a
                result, no control characters were being written to
                the terminal.
             2. While attempting to start a newline after the user hit
                enter, the library was outputting the control sequence
                for moving the cursor down, instead of the newline
                character. On many systems the control sequence for
                moving the cursor down happends to be a newline
                character, but under HPUX it isn't. The result was
                that no new line was being started under HPUX.

04/03/2001 mcs@astro.caltech.edu

           configure.in Makefile.in Makefile.stub configure config.guess
           config.sub Makefile.rules install-sh PORTING README INSTALL
             Configuration and compilation of the library is now
             performed with the help of an autoconf configure
             script. In addition to relieving the user of the need to
             edit the Makefile, this also allows automatic compilation
             of the reentrant version of the library on platforms that
             can handle it, along with the creation of shared
             libraries where configured. On systems that aren't known
             to the configure script, just the static tecla library is
             compiled. This is currently the case on all systems
             except linux, solaris and HPUX. In the hope that
             installers will provide specific conigurations for other
             systems, the configure.in script is heavily commented,
             and instructions on how to use are included in a new
             PORTING file.

24/02/2001 Version 1.2b released.

22/02/2001 mcs@astro.caltech.edu

           getline.c
             It turns out that most terminals, but not all, on writing
             a character in the rightmost column, don't wrap the
             cursor onto the next line until the next character is
             output. This library wasn't aware of this and thus if one
             tried to reposition the cursor from the last column,
             gl_get_line() thought that it was moving relative to a
             point on the next line, and thus moved the cursor up a
             line. The fix was to write one extra character when in
             the last column to force the cursor onto the next line,
             then backup the cursor to the start of the new line.
           getline.c
             On terminal initialization, the dynamic LINES and COLUMNS
             environment variables were ignored unless
             terminfo/termcap didn't return sensible dimensions. In
             practice, when present they should override the static
             versions in the terminfo/termcap databases. This is the
             new behavior. In reality this probably won't have caused
             many problems, because a SIGWINCH signal which informs of
             terminal size changes is sent when the terminal is
             opened, so the dimensions established during
             initialization quickly get updated on most systems.

18/02/2001 Version 1.2a released.

18/02/2001 mcs@astro.caltech.edu

           getline.c
             Three months ago I moved the point at which termios.h
             was included in getline.c. Unfortunately, I didn't notice
             that this moved it to after the test for TIOCGWINSZ being
             defined. This resulted in SIGWINCH signals not being
             trapped for, and thus terminal size changes went
             unnoticed. I have now moved the test to after the 
             inclusion of termios.h.

12/02/2001 Markus Gyger     (described here by mcs)

           man3/pca_lookup_file.3 man3/gl_get_line.3
           man3/ef_expand_file.3 man3/cpl_complete_word.3
             In the 1.2 release of the library, all functions in the
             library were given man pages. Most of these simply
             include one of the above 4 man pages, which describe the
             functions while describing the modules that they are in.
             Markus added all of these function names to the lists in
             the "NAME" headers of the respective man pages.
             Previously only the primary function of each module was
             named there.

11/02/2001 mcs@astro.caltech.edu

           getline.c
             On entering a line that wrapped over two or more
             terminal, if the user pressed enter when the cursor
             wasn't on the last of the wrapped lines, the text of the
             wrapped lines that followed it got mixed up with the next
             line written by the application, or the next input
             line. Somehow this slipped through the cracks and wasn't
             noticed until now. Anyway, it is fixed now.

09/02/2001 Version 1.2 released.

04/02/2001 mcs@astro.caltech.edu

           pcache.c libtecla.h
             With all filesystems local, demo2 was very fast to start
             up, but on a Sun system with one of the target
             directories being on a remote nfs mounted filesystem, the
             startup time was many seconds. This was due to the
             executable selection callback being applied to all files
             in the path at startup. To avoid this, all files are now
             included in the cache, and the application specified
             file-selection callback is only called on files as they
             are matched. Whether the callback rejected or accepted
             them is then cached so that the next time an already
             checked file is looked at, the callback doesn't have to
             be called. As a result, startup is now fast on all
             systems, and since usually there are only a few matching
             file completions at a time, the delay during completion
             is also usually small. The only exception is if the user
             tries to complete an empty string, at which point all
             files have to be checked. Having done this once, however,
             doing it again is fast.
           man3/pca_lookup_file.3
             I added a man page documenting the new PathCache module.
           man3/.3
             I have added man pages for all of the functions in each
             of the modules. These 1-line pages use the .so directive
             to redirect nroff to the man page of the parent module.
           man Makefile update_html
             I renamed man to man3 to make it easier to test man page
             rediction, and updated Makefile and update_html
             accordingly. I also instructed update_html to ignore
             1-line man pages when making html equivalents of the man
             pages.
           cplmatch.c
             In cpl_list_completions() the size_t return value of
             strlen() was being used as the length argument of a "%*s"
             printf directive. This ought to be an int, so the return
             value of strlen() is now cast to int. This would have
             caused problems on architectures where the size of a
             size_t is not equal to the size of an int.

02/02/2001 mcs@astro.caltech.edu

           getline.c
             Under UNIX, certain terminal bindings are set using the
             stty command. This, for example, specifies which control
             key generates a user-interrupt (usually ^C or ^Y). What I
             hadn't realized was that ASCII NUL is used as the way to
             specify that one of these bindings is unset. I have now
             modified the code to skip unset bindings, leaving the
             corresponding action bound to the built-in default, or a
             user provided binding.

28/01/2001 mcs@astro.caltech.edu

           pcache.c libtecla.h
             A new module was added which supports searching for files
             in any colon separated list of directories, such as the
             unix execution PATH environment variable. Files in these
             directories, after being individually okayed for
             inclusion via an application provided callback, are
             cached in a PathCache object. You can then look up the
             full pathname of a given filename, or you can use the
             provided completion callback to list possible completions
             in the path-list. The contents of relative directories,
             such as ".", obviously can't be cached, so these
             directories are read on the fly during lookups and
             completions. The obvious application of this facility is
             to provide Tab-completion of commands, and thus a
             callback to place executable files in the cache, is
             provided.
           demo2.c
             This new program demonstrates the new PathCache
             module. It reads and processes lines of input until the
             word 'exit' is entered, or C-d is pressed. The default
             tab-completion callback is replaced with one which at the
             start of a line, looks up completions of commands in the
             user's execution path, and when invoked in other parts of
             the line, reverts to normal filename completion. Whenever
             a new line is entered, it extracts the first word on the
             line, looks it up in the user's execution path to see if
             it corresponds to a known command file, and if so,
             displays the full pathname of the file, along with the
             remaining arguments.
           cplfile.c
             I added an optional pair of callback function/data
             members to the new cpl_file_completions() configuration
             structure. Where provided, this callback is asked
             on a file-by-file basis, which files should be included
             in the list of file completions. For example, a callback
             is provided for listing only completions of executable
             files.
           cplmatch.c
             When listing completions, the length of the type suffix
             of each completion wasn't being taken into account
             correctly when computing the column widths. Thus the
             listing appeared ragged sometimes. This is now fixed.
           pathutil.c
             I added a function for prepending a string to a path,
             and another for testing whether a pathname referred to
             an executable file.

28/01/2001 mcs@astro.caltech.edu

           libtecla.h cplmatch.c man/cpl_complete_word.3
             The use of a publically defined structure to configure
             the cpl_file_completions() callback was flawed, so a new
             approach has been designed, and the old method, albeit
             still supported, is no longer documented in the man
             pages. The definition of the CplFileArgs structure in
             libtecla.h is now accompanied by comments warning people
             not to modify it, since modifications could break
             applications linked to shared versions of the tecla
             library. The new method involves an opaque CplFileConf
             object, instances of which are returned by a provided
             constructor function, configured with provided accessor
             functions, and when no longer needed, deleted with a
             provided destructor function. This is documented in the
             cpl_complete_word man page. The cpl_file_completions()
             callback distinguishes what type of configuration
             structure it has been sent by virtue of a code placed at
             the beginning of the CplFileConf argument by its
             constructor.

04/01/2001 mcs@astro.caltech.edu (Release of version 1.1j)

           getline.c
             I added upper-case bindings for the default meta-letter
             keysequences such as M-b. They thus continue to work
             when the user has caps-lock on.
           Makefile
             I re-implemented the "install" target in terms of new
             install_lib, install_inc and install_man targets. When
             distributing the library with other packages, these new
             targets allows for finer grained control of the
             installation process.

30/12/2000 mcs@astro.caltech.edu

           getline.c man/gl_get_line.3
             I realized that the recall-history action that I
             implemented wasn't what Markus had asked me for. What he
             actually wanted was for down-history to continue going
             forwards through a previous history recall session if no
             history recall session had been started while entering
             the current line. I have thus removed the recall-history
             action and modified the down-history action function
             accordingly.

24/12/2000 mcs@astro.caltech.edu

           getline.c
             I modified gl_get_line() to allow the previously returned
             line to be passed in the start_line argument.
           getline.c man/gl_get_line.3
             I added a recall-history action function, bound to M^P.
             This recalls the last recalled history line, regardless
             of whether it was from the current or previous line.

13/12/2000 mcs@astro.caltech.edu (Release of version 1.1i)

           getline.c history.h history.c man/gl_get_line.3
             I implemented the equivalent of the ksh Operate action. I
             have named the tecla equivalent "repeat-history". This
             causes the line that is to be edited to returned, and
             arranges for the next most recent history line to be
             preloaded on the next call to gl_get_line(). Repeated
             invocations of this action thus result in successive
             history lines being repeated - hence the
             name. Implementing the ksh Operate action was suggested
             by Markus Gyger. In ksh it is bound to ^O, but since ^O
             is traditionally bound by the default terminal settings,
             to stop-output, I have bound the tecla equivalent to M-o.

01/12/2000 mcs@astro.caltech.edu (Release of version 1.1h)

           getline.c keytab.c keytab.h man/gl_get_line.3
             I added a digit-argument action, to allow repeat
             counts for actions to be entered. As in both tcsh
             and readline, this is bound by default to each of
             M-0, M-1 through to M-9, the number being appended
             to the current repeat count. Once one of these has been
             pressed, the subsequent digits of the repeat count can be
             typed with or without the meta key pressed. It is also
             possible to bind digit-argument to other keys, with or
             without a numeric final keystroke. See man page for
             details.

           getline.c man/gl_get_line.3
             Markus noted that my choice of M-< for the default
             binding of read-from-file, could be confusing, since
             readline binds this to beginning-of-history. I have
             thus rebound it to ^X^F (ie. like find-file in emacs).

           getline.c history.c history.h man/gl_get_line.3
             I have now implemented equivalents of the readline
             beginning-of-history and end-of-history actions.
             These are bound to M-< and M-> respectively.

           history.c history.h
             I Moved the definition of the GlHistory type, and
             its subordinate types from history.h to history.c.
             There is no good reason for any other module to
             have access to the innards of this structure.

27/11/2000 mcs@astro.caltech.edu (Release of version 1.1g)

           getline.c man/gl_get_line.3
             I added a "read-from-file" action function and bound it
             by default to M-<. This causes gl_get_line() to
             temporarily return input from the file who's name
             precedes the cursor.
             
26/11/2000 mcs@astro.caltech.edu

           getline.c keytab.c keytab.h man/gl_get_line.3
             I have reworked some of the keybinding code again.

             Now, within key binding strings, in addition to the
             previously existing notation, you can now use M-a to
             denote meta-a, and C-a to denote control-a. For example,
             a key binding which triggers when the user presses the
             meta key, the control key and the letter [
             simultaneously, can now be denoted by M-C-[, or M-^[ or
             \EC-[ or \E^[.

             I also updated the man page to use M- instead of \E in
             the list of default bindings, since this looks cleaner.

           getline.c man/gl_get_line.3
             I added a copy-region-as-kill action function and
             gave it a default binding to M-w.

22/11/2000 mcs@astro.caltech.edu

           *.c
             Markus Gyger sent me a copy of a previous version of
             the library, with const qualifiers added in appropriate
             places. I have done the same for the latest version.
             Among other things, this gets rid of the warnings
             that are generated if one tells the compiler to
             const qualify literal strings.

           getline.c getline.h glconf.c
             I have moved the contents of glconf.c and the declaration
             of the GetLine structure into getline.c. This is cleaner,
             since now only functions in getline.c can mess with the
             innards of GetLine objects. It also clears up some problems
             with system header inclusion order under Solaris, and also
             the possibility that this might result in inconsistent
             system macro definitions, which in turn could cause different
             declarations of the structure to be seen in different files.

           hash.c
             I wrote a wrapper function to go around strcmp(), such that
             when hash.c is compiled with a C++ compiler, the pointer
             to the wrapper function is a C++ function pointer.
             This makes it compatible with comparison function pointer
             recorded in the hash table.

           cplmatch.c getline.c libtecla.h
             Markus noted that the Sun C++ compiler wasn't able to
             match up the declaration of cpl_complete_word() in
             libtecla.h, where it is surrounded by a extern "C" {}
             wrapper, with the definition of this function in
             cplmatch.c. My suspicion is that the compiler looks not
             only at the function name, but also at the function
             arguments to see if two functions match, and that the
             match_fn() argument, being a fully blown function pointer
             declaration, got interpetted as that of a C function in
             one case, and a C++ function in the other, thus
             preventing a match.

             To fix this I now define a CplMatchFn typedef in libtecla.h,
             and use this to declare the match_fn callback.

20/11/2000 (Changes suggested by Markus Gyger to support C++ compilers):
           expand.c
             Renamed a variable called "explicit" to "xplicit", to
             avoid conflicts when compiling with C++ compilers.
           *.c
             Added explicit casts when converting from (void *) to
             other pointer types. This isn't needed in C but it is
             in C++.
           getline.c
             tputs() has a strange declaration under Solaris. I was
             enabling this declaration when the sparc feature-test
             macro was set. Markus changed the test to hinge on the
             __sun and __SVR4 macros.
           direader.c glconf.c stringrp.c
             I had omitted to include string.h in these two files.

           Markus also suggested some other changes, which are still
           under discussion. With the just above changes however, the
           library compiles without complaint using g++.

19/11/2000 mcs@astro.caltech.edu
           getline.h getline.c keytab.c keytab.h glconf.c
           man/gl_get_line.3
             I added support for backslash escapes (include \e
             for the keyboard escape key) and literal binary
             characters to the characters allowed within key sequences
             of key bindings.

           getline.h getline.c keytab.c keytab.h glconf.c
           man/gl_get_line.3
             I introduced symbolic names for the arrow keys, and
             modified the library to use the cursor key sequences
             reported by terminfo/termcap in addition to the default
             ANSI ones. Anything bound to the symbolically named arrow
             keys also gets bound to the default and terminfo/termcap
             cursor key sequences. Note that under Solaris
             terminfo/termcap report the properties of hardware X
             terminals when TERM is xterm instead of the terminal
             emulator properties, and the cursor keys on these two
             systems generate different key sequences. This is an
             example of why extra default sequences are needed.

           getline.h getline.c keytab.c
             For some reason I was using \e to represent the escape
             character. This is supported by gcc, which thus doesn't
             emit a warning except with the -pedantic flag, but isn't
             part of standard C. I now use a macro to define escape
             as \033 in getline.h, and this is now used wherever the
             escape character is needed.

17/11/2000 mcs@astro.caltech.edu (Release of version 1.1d)

           getline.c, man/gl_get_line(3), html/gl_get_line.html
             In tcsh ^D is bound to a function which does different
             things depending on where the cursor is within the input
             line. I have implemented its equivalent in the tecla
             library. When invoked at the end of the line this action
             function displays possible completions. When invoked on
             an empty line it causes gl_get_line() to return NULL,
             thus signalling end of input. When invoked within a line
             it invokes forward-delete-char, as before. The new action
             function is called del-char-or-list-or-eof.

           getline.c, man/gl_get_line(3), html/gl_get_line.html
             I found that the complete-word and expand-file actions
             had underscores in their names instead of hyphens. This
             made them different from all other action functions, so I
             have changed the underscores to hyphens.

           homedir.c
             On SCO UnixWare while getpwuid_r() is available, the
             associated _SC_GETPW_R_SIZE_MAX macro used by sysconf()
             to find out how big to make the buffer to pass to this
             function to cater for any password entry, doesn't
             exist. I also hadn't catered for the case where sysconf()
             reports that this limit is indeterminate. I have thus
             change the code to substitute a default limit of 1024 if
             either the above macro isn't defined or if sysconf() says
             that the associated limit is indeterminate.
           
17/11/2000 mcs@astro.caltech.edu (Release of version 1.1c)

           getline.c, getline.h, history.c, history.h
             I have modified the way that the history recall functions
             operate, to make them better emulate the behavior of
             tcsh. Previously the history search bindings always
             searched for the prefix that preceded the cursor, then
             left the cursor at the same point in the line, so that a
             following search would search using the same prefix. This
             isn't how tcsh operates. On finding a matching line, tcsh
             puts the cursor at the end of the line, but arranges for
             the followup search to continue with the same prefix,
             unless the user does any cursor motion or character
             insertion operations in between, in which case it changes
             the search prefix to the new set of characters that are
             before the cursor. There are other complications as well,
             which I have attempted to emulate. As far as I can
             tell, the tecla history recall facilities now fully
             emulate those of tcsh.

16/11/2000 mcs@astro.caltech.edu (Release of version 1.1b)

           demo.c:
             One can now quit from the demo by typing exit.

           keytab.c:
             The first entry of the table was getting deleted
             by _kt_clear_bindings() regardless of the source
             of the binding. This deleted the up-arrow binding.
             Symptoms noted by gazelle@yin.interaccess.com.

           getline.h:
             Depending on which system include files were include
             before the inclusion of getline.h, SIGWINCH and
             TIOCGWINSZ might or might not be defined. This resulted
             in different definitions of the GetLine object in
             different files, and thus some very strange bugs! I have
             now added #includes for the necessary system header files
             in getline.h itself. The symptom was that on creating a
             ~/.teclarc file, the demo program complained of a NULL
             argument to kt_set_keybinding() for the first line of the
             file.

15/11/2000 mcs@astro.caltech.edu (Release of version 1.1a)

           demo.c:
             I had neglected to check the return value of
             new_GetLine() in the demo program. Oops.

           getline.c libtecla.h:
             I wrote gl_change_terminal(). This allows one to change to
             a different terminal or I/O stream, by specifying the
             stdio streams to use for input and output, along with the
             type of terminal that they are connected to.

           getline.c libtecla.h:
             Renamed GetLine::isterm to GetLine::is_term. Standard
             C reserves names that start with "is" followed by
             alphanumeric characters, so this avoids potential
             clashes in the future.

           keytab.c keytab.h
             Each key-sequence can now have different binding
             functions from different sources, with the user provided
             binding having the highest precedence, followed by the
             default binding, followed by any terminal specific
             binding. This allows gl_change_terminal() to redefine the
             terminal-specific bindings each time that
             gl_change_terminal() is called, without overwriting the
             user specified or default bindings. In the future, it will
             also allow for reconfiguration of user specified
             bindings after the call to new_GetLine(). Ie. deleting a
             user specified binding should reinstate any default or
             terminal specific binding.

           man/cpl_complete_word.3 html/cpl_complete_word.html
           man/ef_expand_file.3    html/ef_expand_file.html
           man/gl_get_line.3       html/gl_get_line.html
             I added sections on thread safety to the man pages of the
             individual modules.

           man/gl_get_line.3       html/gl_get_line.html
             I documented the new gl_change_terminal() function.

           man/gl_get_line.3       html/gl_get_line.html
             In the description of the ~/.teclarc configuration file,
             I had omitted the 'bind' command word in the example
             entry. I have now remedied this.