Mercurial > vim
view src/arabic.c @ 10098:72e4b7f90465 v7.4.2320
commit https://github.com/vim/vim/commit/dda933d06c06c2792bd686d059f6ad19191ad30b
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Sep 3 21:04:58 2016 +0200
patch 7.4.2320
Problem: Redraw problem when using 'incsearch'.
Solution: Save the current view when deleting characters. (Christian
Brabandt) Fix that the '" mark is set in the wrong position. Don't
change the search start when using BS.
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sat, 03 Sep 2016 21:15:06 +0200 |
| parents | 4aead6a9b7a9 |
| children | f91d4c95b696 |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * arabic.c: functions for Arabic language * * Author: Nadim Shaikli & Isam Bayazidi */ #include "vim.h" #if defined(FEAT_ARABIC) || defined(PROTO) static int A_is_a(int cur_c); static int A_is_s(int cur_c); static int A_is_f(int cur_c); static int chg_c_a2s(int cur_c); static int chg_c_a2i(int cur_c); static int chg_c_a2m(int cur_c); static int chg_c_a2f(int cur_c); static int chg_c_i2m(int cur_c); static int chg_c_f2m(int cur_c); static int chg_c_laa2i(int hid_c); static int chg_c_laa2f(int hid_c); static int half_shape(int c); static int A_firstc_laa(int c1, int c); static int A_is_harakat(int c); static int A_is_iso(int c); static int A_is_formb(int c); static int A_is_ok(int c); static int A_is_valid(int c); static int A_is_special(int c); /* * Returns True if c is an ISO-8859-6 shaped ARABIC letter (user entered) */ static int A_is_a(int cur_c) { switch (cur_c) { case a_HAMZA: case a_ALEF_MADDA: case a_ALEF_HAMZA_ABOVE: case a_WAW_HAMZA: case a_ALEF_HAMZA_BELOW: case a_YEH_HAMZA: case a_ALEF: case a_BEH: case a_TEH_MARBUTA: case a_TEH: case a_THEH: case a_JEEM: case a_HAH: case a_KHAH: case a_DAL: case a_THAL: case a_REH: case a_ZAIN: case a_SEEN: case a_SHEEN: case a_SAD: case a_DAD: case a_TAH: case a_ZAH: case a_AIN: case a_GHAIN: case a_TATWEEL: case a_FEH: case a_QAF: case a_KAF: case a_LAM: case a_MEEM: case a_NOON: case a_HEH: case a_WAW: case a_ALEF_MAKSURA: case a_YEH: return TRUE; } return FALSE; } /* * Returns True if c is an Isolated Form-B ARABIC letter */ static int A_is_s(int cur_c) { switch (cur_c) { case a_s_HAMZA: case a_s_ALEF_MADDA: case a_s_ALEF_HAMZA_ABOVE: case a_s_WAW_HAMZA: case a_s_ALEF_HAMZA_BELOW: case a_s_YEH_HAMZA: case a_s_ALEF: case a_s_BEH: case a_s_TEH_MARBUTA: case a_s_TEH: case a_s_THEH: case a_s_JEEM: case a_s_HAH: case a_s_KHAH: case a_s_DAL: case a_s_THAL: case a_s_REH: case a_s_ZAIN: case a_s_SEEN: case a_s_SHEEN: case a_s_SAD: case a_s_DAD: case a_s_TAH: case a_s_ZAH: case a_s_AIN: case a_s_GHAIN: case a_s_FEH: case a_s_QAF: case a_s_KAF: case a_s_LAM: case a_s_MEEM: case a_s_NOON: case a_s_HEH: case a_s_WAW: case a_s_ALEF_MAKSURA: case a_s_YEH: return TRUE; } return FALSE; } /* * Returns True if c is a Final shape of an ARABIC letter */ static int A_is_f(int cur_c) { switch (cur_c) { case a_f_ALEF_MADDA: case a_f_ALEF_HAMZA_ABOVE: case a_f_WAW_HAMZA: case a_f_ALEF_HAMZA_BELOW: case a_f_YEH_HAMZA: case a_f_ALEF: case a_f_BEH: case a_f_TEH_MARBUTA: case a_f_TEH: case a_f_THEH: case a_f_JEEM: case a_f_HAH: case a_f_KHAH: case a_f_DAL: case a_f_THAL: case a_f_REH: case a_f_ZAIN: case a_f_SEEN: case a_f_SHEEN: case a_f_SAD: case a_f_DAD: case a_f_TAH: case a_f_ZAH: case a_f_AIN: case a_f_GHAIN: case a_f_FEH: case a_f_QAF: case a_f_KAF: case a_f_LAM: case a_f_MEEM: case a_f_NOON: case a_f_HEH: case a_f_WAW: case a_f_ALEF_MAKSURA: case a_f_YEH: case a_f_LAM_ALEF_MADDA_ABOVE: case a_f_LAM_ALEF_HAMZA_ABOVE: case a_f_LAM_ALEF_HAMZA_BELOW: case a_f_LAM_ALEF: return TRUE; } return FALSE; } /* * Change shape - from ISO-8859-6/Isolated to Form-B Isolated */ static int chg_c_a2s(int cur_c) { int tempc; switch (cur_c) { case a_HAMZA: tempc = a_s_HAMZA; break; case a_ALEF_MADDA: tempc = a_s_ALEF_MADDA; break; case a_ALEF_HAMZA_ABOVE: tempc = a_s_ALEF_HAMZA_ABOVE; break; case a_WAW_HAMZA: tempc = a_s_WAW_HAMZA; break; case a_ALEF_HAMZA_BELOW: tempc = a_s_ALEF_HAMZA_BELOW; break; case a_YEH_HAMZA: tempc = a_s_YEH_HAMZA; break; case a_ALEF: tempc = a_s_ALEF; break; case a_TEH_MARBUTA: tempc = a_s_TEH_MARBUTA; break; case a_DAL: tempc = a_s_DAL; break; case a_THAL: tempc = a_s_THAL; break; case a_REH: tempc = a_s_REH; break; case a_ZAIN: tempc = a_s_ZAIN; break; case a_TATWEEL: /* exceptions */ tempc = cur_c; break; case a_WAW: tempc = a_s_WAW; break; case a_ALEF_MAKSURA: tempc = a_s_ALEF_MAKSURA; break; case a_BEH: tempc = a_s_BEH; break; case a_TEH: tempc = a_s_TEH; break; case a_THEH: tempc = a_s_THEH; break; case a_JEEM: tempc = a_s_JEEM; break; case a_HAH: tempc = a_s_HAH; break; case a_KHAH: tempc = a_s_KHAH; break; case a_SEEN: tempc = a_s_SEEN; break; case a_SHEEN: tempc = a_s_SHEEN; break; case a_SAD: tempc = a_s_SAD; break; case a_DAD: tempc = a_s_DAD; break; case a_TAH: tempc = a_s_TAH; break; case a_ZAH: tempc = a_s_ZAH; break; case a_AIN: tempc = a_s_AIN; break; case a_GHAIN: tempc = a_s_GHAIN; break; case a_FEH: tempc = a_s_FEH; break; case a_QAF: tempc = a_s_QAF; break; case a_KAF: tempc = a_s_KAF; break; case a_LAM: tempc = a_s_LAM; break; case a_MEEM: tempc = a_s_MEEM; break; case a_NOON: tempc = a_s_NOON; break; case a_HEH: tempc = a_s_HEH; break; case a_YEH: tempc = a_s_YEH; break; default: tempc = 0; } return tempc; } /* * Change shape - from ISO-8859-6/Isolated to Initial */ static int chg_c_a2i(int cur_c) { int tempc; switch (cur_c) { case a_YEH_HAMZA: tempc = a_i_YEH_HAMZA; break; case a_HAMZA: /* exceptions */ tempc = a_s_HAMZA; break; case a_ALEF_MADDA: /* exceptions */ tempc = a_s_ALEF_MADDA; break; case a_ALEF_HAMZA_ABOVE: /* exceptions */ tempc = a_s_ALEF_HAMZA_ABOVE; break; case a_WAW_HAMZA: /* exceptions */ tempc = a_s_WAW_HAMZA; break; case a_ALEF_HAMZA_BELOW: /* exceptions */ tempc = a_s_ALEF_HAMZA_BELOW; break; case a_ALEF: /* exceptions */ tempc = a_s_ALEF; break; case a_TEH_MARBUTA: /* exceptions */ tempc = a_s_TEH_MARBUTA; break; case a_DAL: /* exceptions */ tempc = a_s_DAL; break; case a_THAL: /* exceptions */ tempc = a_s_THAL; break; case a_REH: /* exceptions */ tempc = a_s_REH; break; case a_ZAIN: /* exceptions */ tempc = a_s_ZAIN; break; case a_TATWEEL: /* exceptions */ tempc = cur_c; break; case a_WAW: /* exceptions */ tempc = a_s_WAW; break; case a_ALEF_MAKSURA: /* exceptions */ tempc = a_s_ALEF_MAKSURA; break; case a_BEH: tempc = a_i_BEH; break; case a_TEH: tempc = a_i_TEH; break; case a_THEH: tempc = a_i_THEH; break; case a_JEEM: tempc = a_i_JEEM; break; case a_HAH: tempc = a_i_HAH; break; case a_KHAH: tempc = a_i_KHAH; break; case a_SEEN: tempc = a_i_SEEN; break; case a_SHEEN: tempc = a_i_SHEEN; break; case a_SAD: tempc = a_i_SAD; break; case a_DAD: tempc = a_i_DAD; break; case a_TAH: tempc = a_i_TAH; break; case a_ZAH: tempc = a_i_ZAH; break; case a_AIN: tempc = a_i_AIN; break; case a_GHAIN: tempc = a_i_GHAIN; break; case a_FEH: tempc = a_i_FEH; break; case a_QAF: tempc = a_i_QAF; break; case a_KAF: tempc = a_i_KAF; break; case a_LAM: tempc = a_i_LAM; break; case a_MEEM: tempc = a_i_MEEM; break; case a_NOON: tempc = a_i_NOON; break; case a_HEH: tempc = a_i_HEH; break; case a_YEH: tempc = a_i_YEH; break; default: tempc = 0; } return tempc; } /* * Change shape - from ISO-8859-6/Isolated to Medial */ static int chg_c_a2m(int cur_c) { int tempc; switch (cur_c) { case a_HAMZA: /* exception */ tempc = a_s_HAMZA; break; case a_ALEF_MADDA: /* exception */ tempc = a_f_ALEF_MADDA; break; case a_ALEF_HAMZA_ABOVE: /* exception */ tempc = a_f_ALEF_HAMZA_ABOVE; break; case a_WAW_HAMZA: /* exception */ tempc = a_f_WAW_HAMZA; break; case a_ALEF_HAMZA_BELOW: /* exception */ tempc = a_f_ALEF_HAMZA_BELOW; break; case a_YEH_HAMZA: tempc = a_m_YEH_HAMZA; break; case a_ALEF: /* exception */ tempc = a_f_ALEF; break; case a_BEH: tempc = a_m_BEH; break; case a_TEH_MARBUTA: /* exception */ tempc = a_f_TEH_MARBUTA; break; case a_TEH: tempc = a_m_TEH; break; case a_THEH: tempc = a_m_THEH; break; case a_JEEM: tempc = a_m_JEEM; break; case a_HAH: tempc = a_m_HAH; break; case a_KHAH: tempc = a_m_KHAH; break; case a_DAL: /* exception */ tempc = a_f_DAL; break; case a_THAL: /* exception */ tempc = a_f_THAL; break; case a_REH: /* exception */ tempc = a_f_REH; break; case a_ZAIN: /* exception */ tempc = a_f_ZAIN; break; case a_SEEN: tempc = a_m_SEEN; break; case a_SHEEN: tempc = a_m_SHEEN; break; case a_SAD: tempc = a_m_SAD; break; case a_DAD: tempc = a_m_DAD; break; case a_TAH: tempc = a_m_TAH; break; case a_ZAH: tempc = a_m_ZAH; break; case a_AIN: tempc = a_m_AIN; break; case a_GHAIN: tempc = a_m_GHAIN; break; case a_TATWEEL: /* exception */ tempc = cur_c; break; case a_FEH: tempc = a_m_FEH; break; case a_QAF: tempc = a_m_QAF; break; case a_KAF: tempc = a_m_KAF; break; case a_LAM: tempc = a_m_LAM; break; case a_MEEM: tempc = a_m_MEEM; break; case a_NOON: tempc = a_m_NOON; break; case a_HEH: tempc = a_m_HEH; break; case a_WAW: /* exception */ tempc = a_f_WAW; break; case a_ALEF_MAKSURA: /* exception */ tempc = a_f_ALEF_MAKSURA; break; case a_YEH: tempc = a_m_YEH; break; default: tempc = 0; } return tempc; } /* * Change shape - from ISO-8859-6/Isolated to final */ static int chg_c_a2f(int cur_c) { int tempc; /* NOTE: these encodings need to be accounted for a_f_ALEF_MADDA; a_f_ALEF_HAMZA_ABOVE; a_f_ALEF_HAMZA_BELOW; a_f_LAM_ALEF_MADDA_ABOVE; a_f_LAM_ALEF_HAMZA_ABOVE; a_f_LAM_ALEF_HAMZA_BELOW; */ switch (cur_c) { case a_HAMZA: /* exception */ tempc = a_s_HAMZA; break; case a_ALEF_MADDA: tempc = a_f_ALEF_MADDA; break; case a_ALEF_HAMZA_ABOVE: tempc = a_f_ALEF_HAMZA_ABOVE; break; case a_WAW_HAMZA: tempc = a_f_WAW_HAMZA; break; case a_ALEF_HAMZA_BELOW: tempc = a_f_ALEF_HAMZA_BELOW; break; case a_YEH_HAMZA: tempc = a_f_YEH_HAMZA; break; case a_ALEF: tempc = a_f_ALEF; break; case a_BEH: tempc = a_f_BEH; break; case a_TEH_MARBUTA: tempc = a_f_TEH_MARBUTA; break; case a_TEH: tempc = a_f_TEH; break; case a_THEH: tempc = a_f_THEH; break; case a_JEEM: tempc = a_f_JEEM; break; case a_HAH: tempc = a_f_HAH; break; case a_KHAH: tempc = a_f_KHAH; break; case a_DAL: tempc = a_f_DAL; break; case a_THAL: tempc = a_f_THAL; break; case a_REH: tempc = a_f_REH; break; case a_ZAIN: tempc = a_f_ZAIN; break; case a_SEEN: tempc = a_f_SEEN; break; case a_SHEEN: tempc = a_f_SHEEN; break; case a_SAD: tempc = a_f_SAD; break; case a_DAD: tempc = a_f_DAD; break; case a_TAH: tempc = a_f_TAH; break; case a_ZAH: tempc = a_f_ZAH; break; case a_AIN: tempc = a_f_AIN; break; case a_GHAIN: tempc = a_f_GHAIN; break; case a_TATWEEL: /* exception */ tempc = cur_c; break; case a_FEH: tempc = a_f_FEH; break; case a_QAF: tempc = a_f_QAF; break; case a_KAF: tempc = a_f_KAF; break; case a_LAM: tempc = a_f_LAM; break; case a_MEEM: tempc = a_f_MEEM; break; case a_NOON: tempc = a_f_NOON; break; case a_HEH: tempc = a_f_HEH; break; case a_WAW: tempc = a_f_WAW; break; case a_ALEF_MAKSURA: tempc = a_f_ALEF_MAKSURA; break; case a_YEH: tempc = a_f_YEH; break; default: tempc = 0; } return tempc; } /* * Change shape - from Initial to Medial */ static int chg_c_i2m(int cur_c) { int tempc; switch (cur_c) { case a_i_YEH_HAMZA: tempc = a_m_YEH_HAMZA; break; case a_i_BEH: tempc = a_m_BEH; break; case a_i_TEH: tempc = a_m_TEH; break; case a_i_THEH: tempc = a_m_THEH; break; case a_i_JEEM: tempc = a_m_JEEM; break; case a_i_HAH: tempc = a_m_HAH; break; case a_i_KHAH: tempc = a_m_KHAH; break; case a_i_SEEN: tempc = a_m_SEEN; break; case a_i_SHEEN: tempc = a_m_SHEEN; break; case a_i_SAD: tempc = a_m_SAD; break; case a_i_DAD: tempc = a_m_DAD; break; case a_i_TAH: tempc = a_m_TAH; break; case a_i_ZAH: tempc = a_m_ZAH; break; case a_i_AIN: tempc = a_m_AIN; break; case a_i_GHAIN: tempc = a_m_GHAIN; break; case a_i_FEH: tempc = a_m_FEH; break; case a_i_QAF: tempc = a_m_QAF; break; case a_i_KAF: tempc = a_m_KAF; break; case a_i_LAM: tempc = a_m_LAM; break; case a_i_MEEM: tempc = a_m_MEEM; break; case a_i_NOON: tempc = a_m_NOON; break; case a_i_HEH: tempc = a_m_HEH; break; case a_i_YEH: tempc = a_m_YEH; break; default: tempc = 0; } return tempc; } /* * Change shape - from Final to Medial */ static int chg_c_f2m(int cur_c) { int tempc; switch (cur_c) { /* NOTE: these encodings are multi-positional, no ? case a_f_ALEF_MADDA: case a_f_ALEF_HAMZA_ABOVE: case a_f_ALEF_HAMZA_BELOW: */ case a_f_YEH_HAMZA: tempc = a_m_YEH_HAMZA; break; case a_f_WAW_HAMZA: /* exceptions */ case a_f_ALEF: case a_f_TEH_MARBUTA: case a_f_DAL: case a_f_THAL: case a_f_REH: case a_f_ZAIN: case a_f_WAW: case a_f_ALEF_MAKSURA: tempc = cur_c; break; case a_f_BEH: tempc = a_m_BEH; break; case a_f_TEH: tempc = a_m_TEH; break; case a_f_THEH: tempc = a_m_THEH; break; case a_f_JEEM: tempc = a_m_JEEM; break; case a_f_HAH: tempc = a_m_HAH; break; case a_f_KHAH: tempc = a_m_KHAH; break; case a_f_SEEN: tempc = a_m_SEEN; break; case a_f_SHEEN: tempc = a_m_SHEEN; break; case a_f_SAD: tempc = a_m_SAD; break; case a_f_DAD: tempc = a_m_DAD; break; case a_f_TAH: tempc = a_m_TAH; break; case a_f_ZAH: tempc = a_m_ZAH; break; case a_f_AIN: tempc = a_m_AIN; break; case a_f_GHAIN: tempc = a_m_GHAIN; break; case a_f_FEH: tempc = a_m_FEH; break; case a_f_QAF: tempc = a_m_QAF; break; case a_f_KAF: tempc = a_m_KAF; break; case a_f_LAM: tempc = a_m_LAM; break; case a_f_MEEM: tempc = a_m_MEEM; break; case a_f_NOON: tempc = a_m_NOON; break; case a_f_HEH: tempc = a_m_HEH; break; case a_f_YEH: tempc = a_m_YEH; break; /* NOTE: these encodings are multi-positional, no ? case a_f_LAM_ALEF_MADDA_ABOVE: case a_f_LAM_ALEF_HAMZA_ABOVE: case a_f_LAM_ALEF_HAMZA_BELOW: case a_f_LAM_ALEF: */ default: tempc = 0; } return tempc; } /* * Change shape - from Combination (2 char) to an Isolated */ static int chg_c_laa2i(int hid_c) { int tempc; switch (hid_c) { case a_ALEF_MADDA: tempc = a_s_LAM_ALEF_MADDA_ABOVE; break; case a_ALEF_HAMZA_ABOVE: tempc = a_s_LAM_ALEF_HAMZA_ABOVE; break; case a_ALEF_HAMZA_BELOW: tempc = a_s_LAM_ALEF_HAMZA_BELOW; break; case a_ALEF: tempc = a_s_LAM_ALEF; break; default: tempc = 0; } return tempc; } /* * Change shape - from Combination-Isolated to Final */ static int chg_c_laa2f(int hid_c) { int tempc; switch (hid_c) { case a_ALEF_MADDA: tempc = a_f_LAM_ALEF_MADDA_ABOVE; break; case a_ALEF_HAMZA_ABOVE: tempc = a_f_LAM_ALEF_HAMZA_ABOVE; break; case a_ALEF_HAMZA_BELOW: tempc = a_f_LAM_ALEF_HAMZA_BELOW; break; case a_ALEF: tempc = a_f_LAM_ALEF; break; default: tempc = 0; } return tempc; } /* * Do "half-shaping" on character "c". Return zero if no shaping. */ static int half_shape(int c) { if (A_is_a(c)) return chg_c_a2i(c); if (A_is_valid(c) && A_is_f(c)) return chg_c_f2m(c); return 0; } /* * Do Arabic shaping on character "c". Returns the shaped character. * out: "ccp" points to the first byte of the character to be shaped. * in/out: "c1p" points to the first composing char for "c". * in: "prev_c" is the previous character (not shaped) * in: "prev_c1" is the first composing char for the previous char * (not shaped) * in: "next_c" is the next character (not shaped). */ int arabic_shape( int c, int *ccp, int *c1p, int prev_c, int prev_c1, int next_c) { int curr_c; int shape_c; int curr_laa; int prev_laa; /* Deal only with Arabic character, pass back all others */ if (!A_is_ok(c)) return c; /* half-shape current and previous character */ shape_c = half_shape(prev_c); /* Save away current character */ curr_c = c; curr_laa = A_firstc_laa(c, *c1p); prev_laa = A_firstc_laa(prev_c, prev_c1); if (curr_laa) { if (A_is_valid(prev_c) && !A_is_f(shape_c) && !A_is_s(shape_c) && !prev_laa) curr_c = chg_c_laa2f(curr_laa); else curr_c = chg_c_laa2i(curr_laa); /* Remove the composing character */ *c1p = 0; } else if (!A_is_valid(prev_c) && A_is_valid(next_c)) curr_c = chg_c_a2i(c); else if (!shape_c || A_is_f(shape_c) || A_is_s(shape_c) || prev_laa) curr_c = A_is_valid(next_c) ? chg_c_a2i(c) : chg_c_a2s(c); else if (A_is_valid(next_c)) curr_c = A_is_iso(c) ? chg_c_a2m(c) : chg_c_i2m(c); else if (A_is_valid(prev_c)) curr_c = chg_c_a2f(c); else curr_c = chg_c_a2s(c); /* Sanity check -- curr_c should, in the future, never be 0. * We should, in the future, insert a fatal error here. */ if (curr_c == NUL) curr_c = c; if (curr_c != c && ccp != NULL) { char_u buf[MB_MAXBYTES + 1]; /* Update the first byte of the character. */ (*mb_char2bytes)(curr_c, buf); *ccp = buf[0]; } /* Return the shaped character */ return curr_c; } /* * A_firstc_laa returns first character of LAA combination if it exists */ static int A_firstc_laa( int c, /* base character */ int c1) /* first composing character */ { if (c1 != NUL && c == a_LAM && !A_is_harakat(c1)) return c1; return 0; } /* * A_is_harakat returns TRUE if 'c' is an Arabic Harakat character * (harakat/tanween) */ static int A_is_harakat(int c) { return (c >= a_FATHATAN && c <= a_SUKUN); } /* * A_is_iso returns TRUE if 'c' is an Arabic ISO-8859-6 character * (alphabet/number/punctuation) */ static int A_is_iso(int c) { return ((c >= a_HAMZA && c <= a_GHAIN) || (c >= a_TATWEEL && c <= a_HAMZA_BELOW) || c == a_MINI_ALEF); } /* * A_is_formb returns TRUE if 'c' is an Arabic 10646-1 FormB character * (alphabet/number/punctuation) */ static int A_is_formb(int c) { return ((c >= a_s_FATHATAN && c <= a_s_DAMMATAN) || c == a_s_KASRATAN || (c >= a_s_FATHA && c <= a_f_LAM_ALEF) || c == a_BYTE_ORDER_MARK); } /* * A_is_ok returns TRUE if 'c' is an Arabic 10646 (8859-6 or Form-B) */ static int A_is_ok(int c) { return (A_is_iso(c) || A_is_formb(c)); } /* * A_is_valid returns TRUE if 'c' is an Arabic 10646 (8859-6 or Form-B) * with some exceptions/exclusions */ static int A_is_valid(int c) { return (A_is_ok(c) && !A_is_special(c)); } /* * A_is_special returns TRUE if 'c' is not a special Arabic character. * Specials don't adhere to most of the rules. */ static int A_is_special(int c) { return (c == a_HAMZA || c == a_s_HAMZA); } #endif /* FEAT_ARABIC */