* support 3 types of end of line: Unix, Dos and old style Mac
* detect eol type automatically in detect_charset
* set buffer eol_type together with charset
* transparently convert eol sequence to \n upon reading buffers
characters in eb_nextc().
* transparently convert \n to eol sequence in eb_encode_uchar()
* handle eol types in convert-file-buffer-coding-system: either preserve
current value or force it via charset suffix -unix, -doc and -mac
* change read_charset() to accept eol_type suffix
* add eol_type and eol_char to CharsetDecodeState
* change charset methods to take CharsetDecodeState instead of charset pointers
* display eol_type in mode line if not unix
* prepare support for eol_type support by making char encoding buffer specific
* fix small bugs and unsafe cases.
* fix bug in eb_goto_pos for EBCDIC charsets
* add qe_isaccent() to test for combining marks
* add do_combine_char() command to insert or remove combining marks
* fix some display glitches involving combining marks
* add expand_ligature() and combine_accent() to handle simple ligatures
* change do_what_cursor_position() to display combining marks
* improve do_c_indent to prevent buffer modification if indentation is correct
* simplify do_c_indent_region accordingly
* added c-newline to remove indentation on blank lines
* add free_font_cache()
* add css_free_colors()
* add unload_ligatures()
* add --free-all cmd line option to free memory upon exit for valgrind
* tty.c: fix off by 3 size in qe_realloc. Should be typed
* qe.c: fix invalid pointer reference upon destroying transient buffer
* use qe_mallocz for all structures
* prevent spurious uses of malloc/free/realloc
* pass pointers to pointers to all deletion functions
* use consistent patterns for list deletions
* add more dependencies in Makefiles
* change tab-size to tab-width
* make tab-width a buffer variable
* add fill-column buffer variable
* add set-fill-column on C-x f
* add default-tab-width and default-fill-column global variables
* force indent-tabs-mode in makefile mode
* force tab-width to 8 in shell output buffers
* add command delete-horizontal-lines in extras.c
* simplify do_delete_horizontal_space
* bind backward-paragraph and forward-paragraph to M-[ and M-]
* M-[ binding is not effective in terminal because it clashes with ansi
escape sequences
* comment some key bindings for compatibility
* improve compute_crc: no longer fail on simple 1 character transposition
* remove limitations on block size in do_transpose
* preserve styles in do_transpose
* changed keytostr to buf_put_key using buf_t structure
* changed keys_to_str tp buf_put_keys using buf_t structure
* add buf_attach to initialize buf_t with non empty buffer
* simplify qe_list_bindings with inherit argument
* styles_buffer hold static style info for each character in the buffer
* new buffer flags to create styles buffers with 1, 2 or 4 bytes per char
* copy static styles to the kill_ring and pasted them style enabled buffers
* preserve static styles in convert-buffer-file-coding-system
* display style bytes in bufed list
* add commands set-region-color, set-region-style, drop-styles
* mode initializers should call text-mode-init to register ccallback
for s->offset and s->top_offset, and other generic stuff.
* this is error prone, should simplify this with base_mode property and
keep unmapped windows lingering to get rid of ModeSavedData handlers
* use bit 2 in b->save_log to suspend callbacks and logging during transient
undo phase.
* dispatch callbacks before buffer modification (eb_delete)
* this fixes bugs in the undo system where some offsets were not properly
updated, color buffer was shifted, cursor would get lost and sometimes
crash would follow.
* buffer colors are not undone properly
* pass extra int argument to buffer callbacks
* make eb_offset_callback more generic: handle edge effect via extra arg.
edge effect causes offset to move upon insertion at current value
* add new log variables log_last_char and last_log.
use these to coalesce consecutive log records and make undo more efficient
* add new command "redo" on C-x C-_ and C-x r
* fix undo glitches in the process buffer, update cursor correctly upon redo
* use bit 2 in b->save_log to suspend callbacks and logging during transient
undo phase.
* dispatch callbacks before buffer modification (eb_delete)
* this fixes bugs in the undo system where some offsets were not properly
updated, color buffer was shifted, cursor would get lost and sometimes
crash would follow.
* buffer colors are not undone properly
