vim: src/arabic.c annotate

annotate src/arabic.c @ 27492:4789f29c9595

Update runtime files Commit: https://github.com/vim/vim/commit/c4573eb12dba6a062af28ee0b8938d1521934ce4 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 31 15:40:56 2022 +0000 Update runtime files

author	Bram Moolenaar <Bram@vim.org>
date	Mon, 31 Jan 2022 16:45:03 +0100
parents	7334bf933510
children

rev	line source
10042 4aead6a9b7a9 commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47 Christian Brabandt <cb@256bit.org> parents: 9403 diff changeset	1 /* vi:set ts=8 sts=4 sw=4 noet:
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3 * VIM - Vi IMproved by Bram Moolenaar
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	4 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	5 * Do ":help uganda" in Vim to read copying and usage conditions.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	6 * Do ":help credits" in Vim to see a list of people who contributed.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	7 * See README.txt for an overview of the Vim source code.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	8 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	9
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	10 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	11 * arabic.c: functions for Arabic language
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	12 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	13 * Author: Nadim Shaikli & Isam Bayazidi
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	14 * Farsi support and restructuring to make adding new letters easier by Ali
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	15 * Gholami Rudi. Further work by Ameretat Reith.
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	16 */
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	17
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	18 /*
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	19 * Sorted list of unicode Arabic characters. Each entry holds the
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	20 * presentation forms of a letter.
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	21 *
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	22 * Arabic characters are categorized into following types:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	23 *
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	24 * Isolated - iso-8859-6 form
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	25 * Initial - unicode form-B start
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	26 * Medial - unicode form-B middle
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	27 * Final - unicode form-B final
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	28 * Stand-Alone - unicode form-B isolated
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	29 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	30
9403 9b048dced116 commit https://github.com/vim/vim/commit/75464dc434c43efac60e8bfd9bec2a8b736407e9 Christian Brabandt <cb@256bit.org> parents: 7817 diff changeset	31 #include "vim.h"
9b048dced116 commit https://github.com/vim/vim/commit/75464dc434c43efac60e8bfd9bec2a8b736407e9 Christian Brabandt <cb@256bit.org> parents: 7817 diff changeset	32
9b048dced116 commit https://github.com/vim/vim/commit/75464dc434c43efac60e8bfd9bec2a8b736407e9 Christian Brabandt <cb@256bit.org> parents: 7817 diff changeset	33 #if defined(FEAT_ARABIC) \|\| defined(PROTO)
9b048dced116 commit https://github.com/vim/vim/commit/75464dc434c43efac60e8bfd9bec2a8b736407e9 Christian Brabandt <cb@256bit.org> parents: 7817 diff changeset	34
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	35 // Unicode values for Arabic characters.
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	36 #define a_HAMZA 0x0621
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	37 #define a_ALEF_MADDA 0x0622
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	38 #define a_ALEF_HAMZA_ABOVE 0x0623
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	39 #define a_WAW_HAMZA 0x0624
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	40 #define a_ALEF_HAMZA_BELOW 0x0625
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	41 #define a_YEH_HAMZA 0x0626
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	42 #define a_ALEF 0x0627
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	43 #define a_BEH 0x0628
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	44 #define a_TEH_MARBUTA 0x0629
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	45 #define a_TEH 0x062a
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	46 #define a_THEH 0x062b
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	47 #define a_JEEM 0x062c
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	48 #define a_HAH 0x062d
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	49 #define a_KHAH 0x062e
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	50 #define a_DAL 0x062f
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	51 #define a_THAL 0x0630
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	52 #define a_REH 0x0631
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	53 #define a_ZAIN 0x0632
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	54 #define a_SEEN 0x0633
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	55 #define a_SHEEN 0x0634
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	56 #define a_SAD 0x0635
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	57 #define a_DAD 0x0636
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	58 #define a_TAH 0x0637
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	59 #define a_ZAH 0x0638
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	60 #define a_AIN 0x0639
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	61 #define a_GHAIN 0x063a
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	62 #define a_TATWEEL 0x0640
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	63 #define a_FEH 0x0641
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	64 #define a_QAF 0x0642
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	65 #define a_KAF 0x0643
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	66 #define a_LAM 0x0644
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	67 #define a_MEEM 0x0645
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	68 #define a_NOON 0x0646
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	69 #define a_HEH 0x0647
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	70 #define a_WAW 0x0648
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	71 #define a_ALEF_MAKSURA 0x0649
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	72 #define a_YEH 0x064a
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	73 #define a_FATHATAN 0x064b
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	74 #define a_DAMMATAN 0x064c
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	75 #define a_KASRATAN 0x064d
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	76 #define a_FATHA 0x064e
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	77 #define a_DAMMA 0x064f
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	78 #define a_KASRA 0x0650
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	79 #define a_SHADDA 0x0651
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	80 #define a_SUKUN 0x0652
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	81 #define a_MADDA_ABOVE 0x0653
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	82 #define a_HAMZA_ABOVE 0x0654
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	83 #define a_HAMZA_BELOW 0x0655
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	84
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	85 #define a_PEH 0x067e
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	86 #define a_TCHEH 0x0686
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	87 #define a_JEH 0x0698
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	88 #define a_FKAF 0x06a9
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	89 #define a_GAF 0x06af
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	90 #define a_FYEH 0x06cc
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	91
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	92 #define a_s_LAM_ALEF_MADDA_ABOVE 0xfef5
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	93 #define a_f_LAM_ALEF_MADDA_ABOVE 0xfef6
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	94 #define a_s_LAM_ALEF_HAMZA_ABOVE 0xfef7
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	95 #define a_f_LAM_ALEF_HAMZA_ABOVE 0xfef8
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	96 #define a_s_LAM_ALEF_HAMZA_BELOW 0xfef9
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	97 #define a_f_LAM_ALEF_HAMZA_BELOW 0xfefa
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	98 #define a_s_LAM_ALEF 0xfefb
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	99 #define a_f_LAM_ALEF 0xfefc
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	100
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	101 static struct achar {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	102 unsigned c;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	103 unsigned isolated;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	104 unsigned initial;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	105 unsigned medial;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	106 unsigned final;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	107 } achars[] = {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	108 {a_HAMZA, 0xfe80, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	109 {a_ALEF_MADDA, 0xfe81, 0, 0, 0xfe82},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	110 {a_ALEF_HAMZA_ABOVE, 0xfe83, 0, 0, 0xfe84},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	111 {a_WAW_HAMZA, 0xfe85, 0, 0, 0xfe86},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	112 {a_ALEF_HAMZA_BELOW, 0xfe87, 0, 0, 0xfe88},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	113 {a_YEH_HAMZA, 0xfe89, 0xfe8b, 0xfe8c, 0xfe8a},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	114 {a_ALEF, 0xfe8d, 0, 0, 0xfe8e},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	115 {a_BEH, 0xfe8f, 0xfe91, 0xfe92, 0xfe90},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	116 {a_TEH_MARBUTA, 0xfe93, 0, 0, 0xfe94},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	117 {a_TEH, 0xfe95, 0xfe97, 0xfe98, 0xfe96},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	118 {a_THEH, 0xfe99, 0xfe9b, 0xfe9c, 0xfe9a},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	119 {a_JEEM, 0xfe9d, 0xfe9f, 0xfea0, 0xfe9e},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	120 {a_HAH, 0xfea1, 0xfea3, 0xfea4, 0xfea2},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	121 {a_KHAH, 0xfea5, 0xfea7, 0xfea8, 0xfea6},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	122 {a_DAL, 0xfea9, 0, 0, 0xfeaa},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	123 {a_THAL, 0xfeab, 0, 0, 0xfeac},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	124 {a_REH, 0xfead, 0, 0, 0xfeae},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	125 {a_ZAIN, 0xfeaf, 0, 0, 0xfeb0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	126 {a_SEEN, 0xfeb1, 0xfeb3, 0xfeb4, 0xfeb2},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	127 {a_SHEEN, 0xfeb5, 0xfeb7, 0xfeb8, 0xfeb6},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	128 {a_SAD, 0xfeb9, 0xfebb, 0xfebc, 0xfeba},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	129 {a_DAD, 0xfebd, 0xfebf, 0xfec0, 0xfebe},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	130 {a_TAH, 0xfec1, 0xfec3, 0xfec4, 0xfec2},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	131 {a_ZAH, 0xfec5, 0xfec7, 0xfec8, 0xfec6},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	132 {a_AIN, 0xfec9, 0xfecb, 0xfecc, 0xfeca},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	133 {a_GHAIN, 0xfecd, 0xfecf, 0xfed0, 0xfece},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	134 {a_TATWEEL, 0, 0x0640, 0x0640, 0x0640},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	135 {a_FEH, 0xfed1, 0xfed3, 0xfed4, 0xfed2},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	136 {a_QAF, 0xfed5, 0xfed7, 0xfed8, 0xfed6},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	137 {a_KAF, 0xfed9, 0xfedb, 0xfedc, 0xfeda},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	138 {a_LAM, 0xfedd, 0xfedf, 0xfee0, 0xfede},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	139 {a_MEEM, 0xfee1, 0xfee3, 0xfee4, 0xfee2},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	140 {a_NOON, 0xfee5, 0xfee7, 0xfee8, 0xfee6},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	141 {a_HEH, 0xfee9, 0xfeeb, 0xfeec, 0xfeea},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	142 {a_WAW, 0xfeed, 0, 0, 0xfeee},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	143 {a_ALEF_MAKSURA, 0xfeef, 0, 0, 0xfef0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	144 {a_YEH, 0xfef1, 0xfef3, 0xfef4, 0xfef2},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	145 {a_FATHATAN, 0xfe70, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	146 {a_DAMMATAN, 0xfe72, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	147 {a_KASRATAN, 0xfe74, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	148 {a_FATHA, 0xfe76, 0, 0xfe77, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	149 {a_DAMMA, 0xfe78, 0, 0xfe79, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	150 {a_KASRA, 0xfe7a, 0, 0xfe7b, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	151 {a_SHADDA, 0xfe7c, 0, 0xfe7c, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	152 {a_SUKUN, 0xfe7e, 0, 0xfe7f, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	153 {a_MADDA_ABOVE, 0, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	154 {a_HAMZA_ABOVE, 0, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	155 {a_HAMZA_BELOW, 0, 0, 0, 0},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	156 {a_PEH, 0xfb56, 0xfb58, 0xfb59, 0xfb57},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	157 {a_TCHEH, 0xfb7a, 0xfb7c, 0xfb7d, 0xfb7b},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	158 {a_JEH, 0xfb8a, 0, 0, 0xfb8b},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	159 {a_FKAF, 0xfb8e, 0xfb90, 0xfb91, 0xfb8f},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	160 {a_GAF, 0xfb92, 0xfb94, 0xfb95, 0xfb93},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	161 {a_FYEH, 0xfbfc, 0xfbfe, 0xfbff, 0xfbfd},
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	162 };
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	163
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	164 #define a_BYTE_ORDER_MARK 0xfeff
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	165
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	166 /*
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	167 * Find the struct achar pointer to the given Arabic char.
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	168 * Returns NULL if not found.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	169 */
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	170 static struct achar *
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	171 find_achar(int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	172 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	173 int h, m, l;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	174
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	175 // using binary search to find c
24768 7334bf933510 patch 8.2.2922: computing array length is done in various ways Bram Moolenaar <Bram@vim.org> parents: 16160 diff changeset	176 h = ARRAY_LENGTH(achars);
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	177 l = 0;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	178 while (l < h)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	179 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	180 m = (h + l) / 2;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	181 if (achars[m].c == (unsigned)c)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	182 return &achars[m];
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	183 if ((unsigned)c < achars[m].c)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	184 h = m;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	185 else
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	186 l = m + 1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	187 }
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	188 return NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	189 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	190
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	191 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	192 * Change shape - from Combination (2 char) to an Isolated
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	193 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	194 static int
7817 83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	195 chg_c_laa2i(int hid_c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	196 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	197 int tempc;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	198
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	199 switch (hid_c)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	200 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	201 case a_ALEF_MADDA:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	202 tempc = a_s_LAM_ALEF_MADDA_ABOVE;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	203 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	204 case a_ALEF_HAMZA_ABOVE:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	205 tempc = a_s_LAM_ALEF_HAMZA_ABOVE;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	206 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	207 case a_ALEF_HAMZA_BELOW:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	208 tempc = a_s_LAM_ALEF_HAMZA_BELOW;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	209 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	210 case a_ALEF:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	211 tempc = a_s_LAM_ALEF;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	212 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	213 default:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	214 tempc = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	215 }
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	216
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	217 return tempc;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	218 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	219
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	220 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	221 * Change shape - from Combination-Isolated to Final
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	222 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	223 static int
7817 83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	224 chg_c_laa2f(int hid_c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	225 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	226 int tempc;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	227
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	228 switch (hid_c)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	229 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	230 case a_ALEF_MADDA:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	231 tempc = a_f_LAM_ALEF_MADDA_ABOVE;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	232 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	233 case a_ALEF_HAMZA_ABOVE:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	234 tempc = a_f_LAM_ALEF_HAMZA_ABOVE;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	235 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	236 case a_ALEF_HAMZA_BELOW:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	237 tempc = a_f_LAM_ALEF_HAMZA_BELOW;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	238 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	239 case a_ALEF:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	240 tempc = a_f_LAM_ALEF;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	241 break;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	242 default:
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	243 tempc = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	244 }
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	245
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	246 return tempc;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	247 }
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	248
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	249 /*
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	250 * Returns whether it is possible to join the given letters
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	251 */
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	252 static int
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	253 can_join(int c1, int c2)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	254 {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	255 struct achar *a1 = find_achar(c1);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	256 struct achar *a2 = find_achar(c2);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	257
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	258 return a1 && a2 && (a1->initial \|\| a1->medial) && (a2->final \|\| a2->medial);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	260
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 /*
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	262 * Check whether we are dealing with a character that could be regarded as an
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	263 * Arabic combining character, need to check the character before this.
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	264 */
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	265 int
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	266 arabic_maycombine(int two)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	267 {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	268 if (p_arshape && !p_tbidi)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	269 return (two == a_ALEF_MADDA
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	270 \|\| two == a_ALEF_HAMZA_ABOVE
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	271 \|\| two == a_ALEF_HAMZA_BELOW
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	272 \|\| two == a_ALEF);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	273 return FALSE;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	274 }
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	275
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	276 /*
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	277 * Check whether we are dealing with Arabic combining characters.
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	278 * Note: these are NOT really composing characters!
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	279 */
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	280 int
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	281 arabic_combine(
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	282 int one, // first character
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	283 int two) // character just after "one"
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	284 {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	285 if (one == a_LAM)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	286 return arabic_maycombine(two);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	287 return FALSE;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	288 }
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	289
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	290 /*
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	291 * A_is_iso returns true if 'c' is an Arabic ISO-8859-6 character
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	292 * (alphabet/number/punctuation)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294 static int
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	295 A_is_iso(int c)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	296 {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	297 return find_achar(c) != NULL;
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	298 }
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	299
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	300 /*
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	301 * A_is_ok returns true if 'c' is an Arabic 10646 (8859-6 or Form-B)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	302 */
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	303 static int
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	304 A_is_ok(int c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	305 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	306 return (A_is_iso(c) \|\| c == a_BYTE_ORDER_MARK);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	307 }
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	308
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	309 /*
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	310 * A_is_valid returns true if 'c' is an Arabic 10646 (8859-6 or Form-B)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	311 * with some exceptions/exclusions
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	312 */
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	313 static int
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	314 A_is_valid(int c)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	315 {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	316 return (A_is_ok(c) && c != a_HAMZA);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	317 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	318
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	319 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	320 * Do Arabic shaping on character "c". Returns the shaped character.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	321 * out: "ccp" points to the first byte of the character to be shaped.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	322 * in/out: "c1p" points to the first composing char for "c".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	323 * in: "prev_c" is the previous character (not shaped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	324 * in: "prev_c1" is the first composing char for the previous char
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	325 * (not shaped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	326 * in: "next_c" is the next character (not shaped).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	327 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	328 int
7817 83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	329 arabic_shape(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	330 int c,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	331 int *ccp,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	332 int *c1p,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	333 int prev_c,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	334 int prev_c1,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff Christian Brabandt <cb@256bit.org> parents: 7799 diff changeset	335 int next_c)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	336 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	337 int curr_c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	338 int curr_laa;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	339 int prev_laa;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	340
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	341 // Deal only with Arabic characters, pass back all others
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	342 if (!A_is_ok(c))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	343 return c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	344
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	345 curr_laa = arabic_combine(c, *c1p);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	346 prev_laa = arabic_combine(prev_c, prev_c1);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	347
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	348 if (curr_laa)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	349 {
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	350 if (A_is_valid(prev_c) && can_join(prev_c, a_LAM) && !prev_laa)
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	351 curr_c = chg_c_laa2f(*c1p);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	352 else
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	353 curr_c = chg_c_laa2i(*c1p);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	354
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	355 // Remove the composing character
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	356 *c1p = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	357 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	358 else
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	359 {
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	360 struct achar *curr_a = find_achar(c);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	361 int backward_combine = !prev_laa && can_join(prev_c, c);
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	362 int forward_combine = can_join(c, next_c);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	363
16160 061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	364 if (backward_combine)
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	365 {
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	366 if (forward_combine)
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	367 curr_c = curr_a->medial;
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	368 else
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	369 curr_c = curr_a->final;
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	370 }
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	371 else
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	372 {
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	373 if (forward_combine)
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	374 curr_c = curr_a->initial;
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	375 else
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	376 curr_c = curr_a->isolated;
061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	377 }
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	378 }
473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	379
16160 061cf939f7ce patch 8.1.1085: compiler warning for possibly uninitialized variable Bram Moolenaar <Bram@vim.org> parents: 16066 diff changeset	380 // Character missing from the table means using original character.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	381 if (curr_c == NUL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	382 curr_c = c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	383
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	384 if (curr_c != c && ccp != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	385 {
3549 f52d2ea0f81c updated for version 7.3.535 Bram Moolenaar <bram@vim.org> parents: 7 diff changeset	386 char_u buf[MB_MAXBYTES + 1];
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	387
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	388 // Update the first byte of the character.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	389 (*mb_char2bytes)(curr_c, buf);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	390 *ccp = buf[0];
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	391 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	392
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	393 // Return the shaped character
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	394 return curr_c;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	395 }
16066 473fbdb2717c patch 8.1.1038: Arabic support excludes Farsi Bram Moolenaar <Bram@vim.org> parents: 16054 diff changeset	396 #endif // FEAT_ARABIC

Mercurial > vim

annotate src/arabic.c @ 27492:4789f29c9595