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* linenoise/linenoise.c (completion_callback, orig_termios,
rawmode, mlmode, history_max_len, history_len, history): Global
variables removed; moved into struct lino_state.
(struct lino_state): New members next, prev. New members
completion_callback, orig_termios, rawmode, mlmode,
history_max_len, history_len, history.
(lino_list): New static variable: dummy node for circular
list of struct lino_state structures.
(lino_set_multiline): Operate on structure rather than global
variable.
(enable_raw_mode, disable_raw_mode): Operate on structure. Use
file descriptors from structures rather than inconsistent
hard-coded use of STDIN_FILENO and the argument fd, which is
gone.
(lino_clear_screen): Obtain file descriptor from structure,
rather than global.
(complete_line): Operate on structure rather than globals.
Pass context to completion callback.
(lino_set_completion_cb): Store callback in structure rather
than global. Store new context argument also.
(reresh_line): Take mode from structure rather than global.
(edit_insert, edit_move_end): Operate on struture rather
than globals.
(edit): Do not accept file descriptor arguments.
Do not update ifd and ofd members of structure; just rely on these
values to already be there, since the lino_make constructor
puts them there.
(lino_print_keycodes, go_raw): Operate on structure.
(lino_make, lino_free): New functions.
(lino_cleanup): New static function.
(linenoise, free_hist): Operate on structure.
(atexit_handler): Loop over all structures in global list,
and clean up each one.
(lino_hist_add, lino_list_set_max_len, lino_hist_save,
lino_hist_load): Operate on structure.
* linenoise/linenoise.h (lino_t): New typedef.
(lino_compl_cb_t): Function type takes new context argument.
(lino_set_completion_cb, linenoise, lino_hist_add,
lino_hist_set_max, lino_his_save, lino_hist_load,
lino_clear_screen, lino_set_multiline,
lino_print_keycodes): Declarations updated.
* linenoise/example.c (completion): Take new context argument,
and ignore it.
(main): Create linenoise context with lino_make, giving it
the input and output file descriptor, and pass it to all functions.
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* linenoise/example.c: New file.
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* linenoise/linenoise.c (edit): If 0 bytes is read from the
tty for any reason, return -1 so that the linenoise function
will return a null pointer rather than a blank line.
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* linenoise/linenoise.c (edit): Set freed element of history
array to null.
(free_hist): Null out all elements, and then the array
pointer.
(lino_hist_set_max_len): Calculate value of history_len
variable in obviously correct way, based on amount of history
preserved.
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linenoise/linenoise.c, linenoise/linenoise.h: Renaming
all camel-case identifiers to underscores. The
verbose linenoise prefix becomes lino_.
All caps enum tag gets lower cased.
Static functions with linenoise prefix lose the prefix.
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* linenoise/linenoise.c (enum KEY_ACTION):
Remove tabs from declaration. This is the only
place in the file which has tabs.
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* linenoise/linenoise.c (mem_t): New typedef, compatible
with the one in lib.h, which we don't want to include.
(chk_malloc, chk_realloc): External declarations added.
(unsupported_term): Make element type const char *.
(linenoiseAddCompletion): Use checked allocator, add
casts, use the superior "sizeof *dest_pointer_var"
expression in size calculations rather than
"sizeof (maybe_wrong_type)".
(abAppend, linenoiseHistoryAdd, linenoiseHistorySetMaxLen): Likewise.
* linenoise/linenoise.h: Remove unnecessary include
guards; we don't use them in this project.
Remove 'extern "C"'; we don't require C linkage when
compiling everything as C++.
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* Makefile (OBJS): Add linenoise/linenoise.o.
* linenoise/linenoise.c (linenoiseEditInsert,
linenoiseEditMoveLeft, linenoiseEditMoveRight,
linenoiseEditMoveEnd, linenoiseEditHistoryNext,
linenoiseEditDelete, linenoiseEditBackspace,
linenoiseEditDeletePrevWord): These de facto internal
functions are switched from external to static.
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* LICENSE: Add Linenoise authors to the list of copyright holders.
* linenoise/LICENSE: New file.
* linenoise/linenoise.c: New file.
* linenoise/linenoise.h: New file.
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