mirror of
https://github.com/VincentWei/MiniGUI.git
synced 2026-09-24 00:54:18 +08:00
UStrTailorBreaks
This commit is contained in:
Vincent Wei
+14
-4
@@ -8813,6 +8813,9 @@ MG_EXPORT int GUIAPI UStrGetBreaks(ScriptType writing_system,
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Uint8 ctr, Uint8 wbr, Uint8 lbp,
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Uchar32* ucs, int nr_ucs, BreakOppo** break_oppos);
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MG_EXPORT void GUIAPI UStrTailorBreaks(ScriptType writing_system,
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const Uchar32* ucs, int nr_ucs, BreakOppo* break_oppos);
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/** The function determines whether a character is alphanumeric. */
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MG_EXPORT BOOL GUIAPI IsUCharAlnum(Uchar32 uc);
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@@ -12554,7 +12557,8 @@ typedef struct _TEXTRUNSINFO TEXTRUNSINFO;
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* \fn TEXTRUNSINFO* GUIAPI CreateTextRunsInfo(const Uchar32* ucs, int nr_ucs,
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* LanguageCode lang_code, ParagraphDir base_dir, GlyphRunDir run_dir,
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* GlyphOrient glyph_orient, GlyphOrientPolicy orient_policy,
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* const char* logfont_name, RGBCOLOR color);
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* const char* logfont_name, RGBCOLOR color,
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* BreakOppo* break_oppos)
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*
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* \brief Split a Uchar32 paragraph string in mixed scripts into text runs.
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*
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@@ -12563,6 +12567,7 @@ typedef struct _TEXTRUNSINFO TEXTRUNSINFO;
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*
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* \param ucs The Uchar32 string returned by \a GetUCharsUntilParagraphBoundary.
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* \param nr_ucs The length of the Uchar32 string.
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* \param
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* \param lang_code The language code.
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* \param base_dir The base direction of the paragraph.
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* \param run_dir The writing direction of the paragraph.
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@@ -12572,21 +12577,26 @@ typedef struct _TEXTRUNSINFO TEXTRUNSINFO;
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* of some text in the paragraph by calling \a SetFontInTextRuns.
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* \param color The default text color. You can change the text color
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* of some text in the paragraph by calling \a SetTextColorInTextRuns
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* \param break_oppos If not NULL, the break opportunities will be tailored
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* according to the script type of every text run. Please skip the first
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* entry when you pass the pointer.
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*
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* \return The TEXTRUNSINFO object create; NULL for failure.
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*
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* \note This function assumes that you passed one paragraph of
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* the logical Unicode string. Therefore, you'd better to call this
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* function after calling GetUCharsUntilParagraphBoundary.
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* function after calling \a GetUCharsUntilParagraphBoundary.
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*
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* \note Only available when support for UNICODE is enabled.
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*
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* \sa GetUCharsUntilParagraphBoundary, SetFontInTextRuns, SetTextColorInTextRuns
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* \sa GetUCharsUntilParagraphBoundary, UStrGetBreaks,
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* SetFontInTextRuns, SetTextColorInTextRuns
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*/
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MG_EXPORT TEXTRUNSINFO* GUIAPI CreateTextRunsInfo(const Uchar32* ucs, int nr_ucs,
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LanguageCode lang_code, ParagraphDir base_dir, GlyphRunDir run_dir,
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GlyphOrient glyph_orient, GlyphOrientPolicy orient_policy,
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const char* logfont_name, RGBCOLOR color);
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const char* logfont_name, RGBCOLOR color,
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BreakOppo* break_oppos);
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/**
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* Set logfont of text runs
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@@ -14,7 +14,7 @@ SRC_FILES = charset.c charset-arabic.c legacy-bidi.c charset-unicode.c \
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bitmapfont.c scripteasy.c \
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unicode-emoji.c unicode-vop.c \
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unicode-bidi.c \
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unicode-break.c \
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unicode-break.c unicode-break-arabic.c unicode-break-indic.c unicode-break-thai.c \
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unicode-joining-types.c unicode-joining.c unicode-shape.c \
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unicode-shape-arabic.c harzbuff-minigui-funcs.c \
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unicode-iterators.c
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@@ -0,0 +1,109 @@
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/*
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* This file is part of MiniGUI, a mature cross-platform windowing
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* and Graphics User Interface (GUI) support system for embedded systems
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* and smart IoT devices.
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*
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* Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
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* Copyright (C) 1998~2002, WEI Yongming
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Or,
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*
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* As this program is a library, any link to this program must follow
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* GNU General Public License version 3 (GPLv3). If you cannot accept
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* GPLv3, you need to be licensed from FMSoft.
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*
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* If you have got a commercial license of this program, please use it
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* under the terms and conditions of the commercial license.
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*
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* For more information about the commercial license, please refer to
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* <http://www.minigui.com/en/about/licensing-policy/>.
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*/
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/*
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** unicode-break-arabic.c:
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** The implementation to tailor Arabic breaks
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**
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** Created by WEI Yongming at 2019/03/27
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**
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** This implementation is derived from LGPL'd Pango.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <assert.h>
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#include "common.h"
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#ifdef _MGCHARSET_UNICODE
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#include "minigui.h"
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#include "gdi.h"
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#include "unicode-ops.h"
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#define ALEF_WITH_MADDA_ABOVE 0x0622
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#define YEH_WITH_HAMZA_ABOVE 0x0626
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#define ALEF 0x0627
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#define WAW 0x0648
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#define YEH 0x064A
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#define MADDAH_ABOVE 0x0653
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#define HAMZA_ABOVE 0x0654
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#define HAMZA_BELOW 0x0655
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/*
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* Arabic characters with canonical decompositions that are not just
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* ligatures. The characters U+06C0, U+06C2, and U+06D3 are intentionally
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* excluded as they are marked as "not an independent letter" in Unicode
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* Character Database's NamesList.txt
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*/
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#define IS_COMPOSITE(c) (ALEF_WITH_MADDA_ABOVE <= (c) && (c) <= YEH_WITH_HAMZA_ABOVE)
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/* If a character is the second part of a composite Arabic character with an Alef */
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#define IS_COMPOSITE_WITH_ALEF(c) (MADDAH_ABOVE <= (c) && (c) <= HAMZA_BELOW)
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void __mg_unicode_break_arabic(const Uchar32* ucs, int nr_ucs,
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BreakOppo* break_oppos)
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{
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int i;
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Uchar32 prev_wc, this_wc;
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for (i = 0, prev_wc = 0; i < nr_ucs; i++, prev_wc = this_wc) {
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this_wc = ucs[i];
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/*
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* Unset backspace_deletes_character for various combinations.
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*
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* A few more combinations may need to be handled here, but are not
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* handled yet, as expectations of users is not known or may differ
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* among different languages or users:
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* some letters combined with U+0658 ARABIC MARK NOON GHUNNA;
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* combinations considered one letter in Azerbaijani (WAW+SUKUN and
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* FARSI_YEH+HAMZA_ABOVE); combinations of YEH and ALEF_MAKSURA with
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* HAMZA_BELOW (Qur'anic); TATWEEL+HAMZA_ABOVE (Qur'anic).
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*
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* FIXME: Ordering these in some other way may lower the time spent here, or not.
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*/
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if (IS_COMPOSITE (this_wc) ||
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(prev_wc == ALEF && IS_COMPOSITE_WITH_ALEF (this_wc)) ||
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(this_wc == HAMZA_ABOVE && (prev_wc == WAW || prev_wc == YEH)))
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break_oppos[i + 1] &= ~BOV_GB_BACKSPACE_DEL_CH;
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}
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}
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#endif /* _MGCHARSET_UNICODE */
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@@ -0,0 +1,233 @@
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/*
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* This file is part of MiniGUI, a mature cross-platform windowing
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* and Graphics User Interface (GUI) support system for embedded systems
|
||||
* and smart IoT devices.
|
||||
*
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||||
* Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
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||||
* Copyright (C) 1998~2002, WEI Yongming
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* Or,
|
||||
*
|
||||
* As this program is a library, any link to this program must follow
|
||||
* GNU General Public License version 3 (GPLv3). If you cannot accept
|
||||
* GPLv3, you need to be licensed from FMSoft.
|
||||
*
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* If you have got a commercial license of this program, please use it
|
||||
* under the terms and conditions of the commercial license.
|
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*
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* For more information about the commercial license, please refer to
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* <http://www.minigui.com/en/about/licensing-policy/>.
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*/
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/*
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** unicode-break-indic.c:
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** The implementation to tailor Indic breaks
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**
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** Created by WEI Yongming at 2019/03/27
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**
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** This implementation is derived from LGPL'd Pango.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <assert.h>
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#include "common.h"
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#ifdef _MGCHARSET_UNICODE
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#include "minigui.h"
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#include "gdi.h"
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#include "unicode-ops.h"
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#define DEV_RRA 0x0931 /* 0930 + 093c */
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#define DEV_QA 0x0958 /* 0915 + 093c */
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#define DEV_YA 0x095F /* 092f + 003c */
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#define DEV_KHHA 0x0959
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#define DEV_GHHA 0x095A
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#define DEV_ZA 0x095B
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#define DEV_DDDHA 0x095C
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#define DEV_RHA 0x095D
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#define DEV_FA 0x095E
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#define DEV_YYA 0x095F
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/* Bengali */
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/* for split matras in all brahmi based script */
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#define BENGALI_SIGN_O 0x09CB /* 09c7 + 09be */
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#define BENGALI_SIGN_AU 0x09CC /* 09c7 + 09d7 */
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#define BENGALI_RRA 0x09DC
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#define BENGALI_RHA 0x09DD
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#define BENGALI_YYA 0x09DF
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/* Gurumukhi */
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#define GURUMUKHI_LLA 0x0A33
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#define GURUMUKHI_SHA 0x0A36
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#define GURUMUKHI_KHHA 0x0A59
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#define GURUMUKHI_GHHA 0x0A5A
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#define GURUMUKHI_ZA 0x0A5B
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#define GURUMUKHI_RRA 0x0A5C
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#define GURUMUKHI_FA 0x0A5E
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/* Oriya */
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#define ORIYA_AI 0x0B48
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#define ORIYA_O 0x0B4B
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#define ORIYA_AU 0x0B4C
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/* Telugu */
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#define TELUGU_EE 0x0C47
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#define TELUGU_AI 0x0C48
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/* Tamil */
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#define TAMIL_O 0x0BCA
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#define TAMIL_OO 0x0BCB
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#define TAMIL_AU 0x0BCC
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/* Kannada */
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#define KNDA_EE 0x0CC7
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#define KNDA_AI 0x0CC8
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#define KNDA_O 0x0CCA
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#define KNDA_OO 0x0CCB
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/* Malayalam */
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#define MLYM_O 0x0D4A
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#define MLYM_OO 0x0D4B
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#define MLYM_AU 0x0D4C
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#define IS_COMPOSITE_WITH_BRAHMI_NUKTA(c) ( \
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(c >= BENGALI_RRA && c <= BENGALI_YYA) || \
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(c >= DEV_QA && c <= DEV_YA) || (c == DEV_RRA) || (c >= DEV_KHHA && c <= DEV_YYA) || \
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(c >= KNDA_EE && c <= KNDA_AI) ||(c >= KNDA_O && c <= KNDA_OO) || \
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(c == TAMIL_O) || (c == TAMIL_OO) || (c == TAMIL_AU) || \
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(c == TELUGU_EE) || (c == TELUGU_AI) || \
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(c == ORIYA_AI) || (c == ORIYA_O) || (c == ORIYA_AU) || \
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(c >= GURUMUKHI_KHHA && c <= GURUMUKHI_RRA) || (c == GURUMUKHI_FA)|| (c == GURUMUKHI_LLA)|| (c == GURUMUKHI_SHA) || \
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FALSE)
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#define IS_SPLIT_MATRA_BRAHMI(c) ( \
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(c == BENGALI_SIGN_O) || (c == BENGALI_SIGN_AU) || \
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(c >= MLYM_O && c <= MLYM_AU) || \
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FALSE)
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static void
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not_cursor_position (BreakOppo *bov)
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{
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*bov &= ~BOV_GB_CURSOR_POS; // attr->is_cursor_position = FALSE;
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*bov &= ~BOV_GB_CHAR_BREAK; // attr->is_char_break = FALSE;
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*bov &= ~BOV_LB_MASK; // attr->is_line_break = FALSE;
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*bov |= BOV_LB_NOTALLOWED; // attr->is_mandatory_break = FALSE;
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//*bov &= ~BOV_LB_MANDATORY_FLAG;
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}
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void __mg_unicode_break_indic(ScriptType writing_system,
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const Uchar32 *ucs, int nr_ucs, BreakOppo* bos)
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{
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const Uchar32 *p, *next = NULL, *next_next;
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Uchar32 prev_wc, this_wc, next_wc, next_next_wc;
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BOOL is_conjunct = FALSE;
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int i;
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for (p = ucs, prev_wc = 0, i = 0;
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p != NULL && p < (ucs + nr_ucs);
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p = next, prev_wc = this_wc, i++)
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{
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this_wc = p[0];
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next = p + 1;
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if (IS_COMPOSITE_WITH_BRAHMI_NUKTA(this_wc) ||
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IS_SPLIT_MATRA_BRAHMI(this_wc)) {
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// attrs[i+1].backspace_deletes_character = FALSE;
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bos[i + 1] &= ~BOV_GB_BACKSPACE_DEL_CH;
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}
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if (next != NULL && next < (ucs + nr_ucs)) {
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next_wc = next[0];
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next_next = next + 1;
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}
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else {
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next_wc = 0;
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next_next = NULL;
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}
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if (next_next != NULL && next_next < (ucs + nr_ucs))
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next_next_wc = *next_next;
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else
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next_next_wc = 0;
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switch (writing_system) {
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case SCRIPT_SINHALA:
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/*
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* TODO: The cursor position should be based on the state table.
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* This is the wrong place to be doing this.
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*/
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/*
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* The cursor should treat as a single glyph:
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* SINHALA CONS + 0x0DCA + 0x200D + SINHALA CONS
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* SINHALA CONS + 0x200D + 0x0DCA + SINHALA CONS
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*/
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if ((this_wc == 0x0DCA && next_wc == 0x200D)
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|| (this_wc == 0x200D && next_wc == 0x0DCA)) {
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not_cursor_position(bos + i);
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not_cursor_position(bos + i + 1);
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is_conjunct = TRUE;
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}
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else if (is_conjunct
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&& (prev_wc == 0x200D || prev_wc == 0x0DCA)
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&& this_wc >= 0x0D9A
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&& this_wc <= 0x0DC6) {
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not_cursor_position(bos + i);
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is_conjunct = FALSE;
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}
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/*
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* Consonant clusters do NOT result in implicit conjuncts
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* in SINHALA orthography.
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*/
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else if (!is_conjunct && prev_wc == 0x0DCA && this_wc != 0x200D) {
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// attrs[i].is_cursor_position = TRUE;
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bos[i] |= BOV_GB_CURSOR_POS;
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}
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break;
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default:
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if (prev_wc != 0 && (this_wc == 0x200D || this_wc == 0x200C)) {
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not_cursor_position(bos + i);
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if (next_wc != 0) {
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not_cursor_position(bos + i+1);
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if ((next_next_wc != 0) &&
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(next_wc == 0x09CD || /* Bengali */
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next_wc == 0x0ACD || /* Gujarati */
|
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next_wc == 0x094D || /* Hindi */
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next_wc == 0x0CCD || /* Kannada */
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next_wc == 0x0D4D || /* Malayalam */
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next_wc == 0x0B4D || /* Oriya */
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next_wc == 0x0A4D || /* Punjabi */
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next_wc == 0x0BCD || /* Tamil */
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||||
next_wc == 0x0C4D)) /* Telugu */
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||||
{
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not_cursor_position(bos + i + 2);
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||||
}
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||||
}
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||||
}
|
||||
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||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* _MGCHARSET_UNICODE */
|
||||
|
||||
@@ -0,0 +1,65 @@
|
||||
/*
|
||||
* This file is part of MiniGUI, a mature cross-platform windowing
|
||||
* and Graphics User Interface (GUI) support system for embedded systems
|
||||
* and smart IoT devices.
|
||||
*
|
||||
* Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
|
||||
* Copyright (C) 1998~2002, WEI Yongming
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* Or,
|
||||
*
|
||||
* As this program is a library, any link to this program must follow
|
||||
* GNU General Public License version 3 (GPLv3). If you cannot accept
|
||||
* GPLv3, you need to be licensed from FMSoft.
|
||||
*
|
||||
* If you have got a commercial license of this program, please use it
|
||||
* under the terms and conditions of the commercial license.
|
||||
*
|
||||
* For more information about the commercial license, please refer to
|
||||
* <http://www.minigui.com/en/about/licensing-policy/>.
|
||||
*/
|
||||
|
||||
/*
|
||||
** unicode-break-thai.c:
|
||||
** The implementation to tailor Thai breaks
|
||||
**
|
||||
** Created by WEI Yongming at 2019/03/27
|
||||
**
|
||||
** This implementation is derived from LGPL'd Pango.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <assert.h>
|
||||
|
||||
#include "common.h"
|
||||
|
||||
#ifdef _MGCHARSET_UNICODE
|
||||
|
||||
#include "minigui.h"
|
||||
#include "gdi.h"
|
||||
#include "unicode-ops.h"
|
||||
|
||||
void __mg_unicode_break_thai(const Uchar32* ucs, int nr_ucs,
|
||||
BreakOppo* break_oppos)
|
||||
{
|
||||
_WRN_PRINTF("NOT IMPLEMENTED");
|
||||
}
|
||||
|
||||
#endif /* _MGCHARSET_UNICODE */
|
||||
|
||||
@@ -2994,5 +2994,32 @@ error:
|
||||
return 0;
|
||||
}
|
||||
|
||||
void GUIAPI UStrTailorBreaks(ScriptType writing_system,
|
||||
const Uchar32* ucs, int nr_ucs, BreakOppo* break_oppos)
|
||||
{
|
||||
switch ((int)writing_system) {
|
||||
case SCRIPT_ARABIC:
|
||||
__mg_unicode_break_arabic(ucs, nr_ucs, break_oppos);
|
||||
break;
|
||||
|
||||
case SCRIPT_DEVANAGARI:
|
||||
case SCRIPT_BENGALI:
|
||||
case SCRIPT_GURMUKHI:
|
||||
case SCRIPT_GUJARATI:
|
||||
case SCRIPT_ORIYA:
|
||||
case SCRIPT_TAMIL:
|
||||
case SCRIPT_TELUGU:
|
||||
case SCRIPT_KANNADA:
|
||||
case SCRIPT_MALAYALAM:
|
||||
case SCRIPT_SINHALA:
|
||||
__mg_unicode_break_indic(writing_system, ucs, nr_ucs, break_oppos);
|
||||
break;
|
||||
|
||||
case SCRIPT_THAI:
|
||||
__mg_unicode_break_thai(ucs, nr_ucs, break_oppos);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* _MGCHARSET_UNICODE */
|
||||
|
||||
|
||||
@@ -153,6 +153,13 @@ void __mg_emoji_iterator_fini (EmojiIterator *iter);
|
||||
|
||||
BOOL __mg_language_includes_script(LanguageCode lc, ScriptType script);
|
||||
|
||||
void __mg_unicode_break_arabic(const Uchar32* ucs, int nr_ucs,
|
||||
BreakOppo* break_oppos);
|
||||
void __mg_unicode_break_indic(ScriptType writing_system,
|
||||
const Uchar32* ucs, int nr_ucs, BreakOppo* break_oppos);
|
||||
void __mg_unicode_break_thai(const Uchar32* ucs, int nr_ucs,
|
||||
BreakOppo* break_oppos);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
@@ -441,7 +441,8 @@ out:
|
||||
TEXTRUNSINFO* GUIAPI CreateTextRunsInfo(const Uchar32* ucs, int nr_ucs,
|
||||
LanguageCode lang_code, ParagraphDir base_dir, GlyphRunDir run_dir,
|
||||
GlyphOrient glyph_orient, GlyphOrientPolicy orient_policy,
|
||||
const char* logfont_name, RGBCOLOR color)
|
||||
const char* logfont_name, RGBCOLOR color,
|
||||
BreakOppo* break_oppos)
|
||||
{
|
||||
BOOL ok = FALSE;
|
||||
|
||||
@@ -518,6 +519,15 @@ TEXTRUNSINFO* GUIAPI CreateTextRunsInfo(const Uchar32* ucs, int nr_ucs,
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (break_oppos) {
|
||||
struct list_head* i;
|
||||
list_for_each(i, &runinfo->truns) {
|
||||
TextRun* trun = (TextRun*)i;
|
||||
UStrTailorBreaks(trun->st, runinfo->ucs + trun->si, trun->len,
|
||||
break_oppos + trun->si);
|
||||
}
|
||||
}
|
||||
|
||||
ok = TRUE;
|
||||
|
||||
out:
|
||||
|
||||
Reference in New Issue
Block a user