(shift_state): Just set ic_info->state_hook, instead of
taking state-hook actions.
(handle_key): Check ic_info->state_hook.  If KEY is unhandled,
init ic_info->state_hook.

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(MInputContextInfo): New member state_hook.

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(try_otf): Remove unused local vars.

(fully_initialize): Avoid compiler warning by casting.

(m17n_init_core): Fix handling of env_value.

(realize_fontset_elements): Fix typo (pl->plist).

(decode_coding_iso_2022): Sanitize "if" condition.

Add Unicode 5.1 based Myanmar.

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(enum GlyphInfoMask): Shift upper masks 1-bit left.
(decode_packed_otf_tag): If a glyph has combining information,
don't touch it.
(run_otf):

(ft_drive_otf): Reset 28th bit of g->g.internal for
storing OTF feature tag.

(run_stages): Fix previous change.

(run_stages): Update category code of glyphs if
category table is changed.

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(moduledir): New variable.

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Add mkinstalldirs, ltmain.sh.

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(ft_check_cap_otf): Fix conditions to call
OTF_check_features.

(check_version): Fix previous change.

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Add AC_PROG_LIBTOOL. Comment out LT_PREREQ and
LT_INIT.

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Version changed to 1.6.1.

(M17NLIB_PATCH_LEVEL): Changed to 1.
(M17NLIB_VERSION_NAME): 1.6.1.

(M17NLIB_MINOR_VERSION): Changed to 6.
(M17NLIB_PATCH_LEVEL): Changed to 0.
(M17NLIB_VERSION_NAME): 1.6.0.

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Version changed to 1.6.0.

Version changed to 1.6.0pre.

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Copyright years udpated.

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(run_rule): Fix checking of glyph availability.

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(register_device_library): Preprend M17N_MODULE_DIR
to the module file name.

(load_external_module): Preprend M17N_MODULE_DIR to the
module file name.

(load_charset): Check the return value of fgets.

Build modules dynamically loaded with
-avoid-version and no -version-info.

(M17N_BINARY_VERSION): New variable.
(M17N_MODULE_DIR): New variable.  AC_SUBST it.

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(Greek, Hindi): Fixed.

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(run_flt): Set mflt_try_otf to rfont->driver->try_otf.
(mdraw__init): Set mflt_enable_new_feature to 1.

(ft_try_otf): New function.
(mfont__ft_driver): Set ft_try_otf.

(struct MFontDriver): New member try_otf.

(xft_driver): Set xft_try_otf.
(xft_try_otf): New function.

(mflt_enable_new_feature): Extern it.
(mflt_try_otf): Extern it.

(load_category_table): If mflt_enable_new_feature is
zero, return NULL for such categories that require the new
feature.
(parse_otf_command): If mflt_enable_new_feature is zero, return
-1.
(load_otf_command): Fix previous change.
(load_flt): Check the return value of load_category_table.
(try_otf): Renamed from run_otf_category.  Call mflt_try_otf
instead of font->drive_otf.
(run_command): Call try_otf instead of run_otf_category.
(m17n_init_flt): Initialize mflt_enable_new_feature to 0,
mflt_try_otf to NULL.
(mflt_enable_new_feature): New variable.
(mflt_try_otf): New variable.

(run_otf_category): Fix previous change.

(parse_otf_command): Handle ":otf?".
(run_otf_category): If not features are specified, reset category
codes.
(run_command): On copy, don't re-calculate a category code.

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(decode_packed_otf_tag): Cancel previous change.

(decode_packed_otf_tag): Re-calculate category code only if some
feature is applied.

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(run_stages): Reset category code if category-table
is changed.
(mflt_run): Don't set category code here.
(decode_packed_otf_tag): If no feature is applied, re-calculate
category code.
(run_command): On copy, don't re-calculate a category code.

(run_stages): Fix previous change.
(mflt_run): Cancel previous change.

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(run_stages): Reset category code if category-table
is changed.
(mflt_run): Don't set category code here.

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(run_command): Don't set ENCODED and MEASURED of separator.

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(mflt_find): If FONT is specified but no flt is
found, return NULL.

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(load_otf_command): Check 4th char against '?'.
(load_command): Likewise.
(decode_packed_otf_tag): New arg CTX.  If CTX->in == gstring,
update CTX->encoded.  Caller changed.

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(ft_drive_otf): Check if OUT is null or not.
(ft_drive_otf): Call OTF_drive_gsub_with_log and
OTF_drive_gpos_with_log.  Record the applied feature in
g->g.internal.

(mfont__get_glyph_id): Encode g->c instead of g->code.

(MAKE_COMBINING_CODE_BY_CLASS)
(COMBINING_BY_CLASS_P, COMBINING_CODE_CLASS)
(MAKE_PRECOMPUTED_COMBINDING_CODE, COMBINING_PRECOMPUTED_P):
Delete externs..
(PACK_OTF_TAG): Extern it.

(reorder_combining_chars): Delete it.

(mflt_font_id): Use type MFLFont.
(mflt_iterate_otf_feature): Likewise.

(enum FontLayoutCmdType): New member
FontLayoutCmdTypeOTFCategory.
(FontLayoutFeatureTable): New type.
(FontLayoutCategory): New members feature_table_size and
feature_table.
(load_category_table): Handle feature_table.
(unref_category_table): Likewise.
(load_otf_command): Handle FontLayoutCmdTypeOTFCategory.
(load_command): Likewise.
(free_flt_command): Likewise.

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(run_flt): Update category code of each glyph.

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(ft_drive_otf): Don't accumulate anchor adjustments.

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Check if the OTF library has OTF_drive_gpos2 ().

(ft_drive_otf): Use OTF_drive_gpos2 if possible.

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(mdebug_flag): New variable.
(mfont__lookup_fontset): Print debug info.

(m17n_init_core): Call SET_DEBUG_FLAG for
MDEBUG_FONTSET.

(enum MDebugFlag): Add MDEBUG_FONTSET.

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(mscript__from_otf_tag): Adjusted for the new format
of the database <standard script unicode>.

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(check_version): Fix the check.

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(surrounding_pos): New arg *pos.
(integer_value): Fix handling of "@+0".
(take_action_list): Adjusted for the change of surrounding_pos.

Fix previous change.

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Version changed to 1.6.0.
(API_VERSION): Changed to 4.0.4.

Docstring updated.

(mflt_iterate_otf_feature, mflt_font_id): Extern them.