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-rw-r--r--src/farsi.c2312
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diff --git a/src/farsi.c b/src/farsi.c
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--- /dev/null
+++ b/src/farsi.c
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+/* vi:set ts=8 sts=4 sw=4:
+ *
+ * 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.
+ */
+
+/*
+ * farsi.c: functions for Farsi language
+ *
+ * Included by main.c, when FEAT_FKMAP is defined.
+ */
+
+static int toF_Xor_X_ __ARGS((int c));
+static int F_is_TyE __ARGS((int c));
+static int F_is_TyC_TyD __ARGS((int c));
+static int F_is_TyB_TyC_TyD __ARGS((int src, int offset));
+static int toF_TyB __ARGS((int c));
+static void put_curr_and_l_to_X __ARGS((int c));
+static void put_and_redo __ARGS((int c));
+static void chg_c_toX_orX __ARGS((void));
+static void chg_c_to_X_orX_ __ARGS((void));
+static void chg_c_to_X_or_X __ARGS((void));
+static void chg_l_to_X_orX_ __ARGS((void));
+static void chg_l_toXor_X __ARGS((void));
+static void chg_r_to_Xor_X_ __ARGS((void));
+static int toF_leading __ARGS((int c));
+static int toF_Rjoin __ARGS((int c));
+static int canF_Ljoin __ARGS((int c));
+static int canF_Rjoin __ARGS((int c));
+static int F_isterm __ARGS((int c));
+static int toF_ending __ARGS((int c));
+static void lrswapbuf __ARGS((char_u *buf, int len));
+
+/*
+** Convert the given Farsi character into a _X or _X_ type
+*/
+ static int
+toF_Xor_X_(c)
+ int c;
+{
+ int tempc;
+
+ switch (c)
+ {
+ case BE:
+ return _BE;
+ case PE:
+ return _PE;
+ case TE:
+ return _TE;
+ case SE:
+ return _SE;
+ case JIM:
+ return _JIM;
+ case CHE:
+ return _CHE;
+ case HE_J:
+ return _HE_J;
+ case XE:
+ return _XE;
+ case SIN:
+ return _SIN;
+ case SHIN:
+ return _SHIN;
+ case SAD:
+ return _SAD;
+ case ZAD:
+ return _ZAD;
+ case AYN:
+ return _AYN;
+ case AYN_:
+ return _AYN_;
+ case GHAYN:
+ return _GHAYN;
+ case GHAYN_:
+ return _GHAYN_;
+ case FE:
+ return _FE;
+ case GHAF:
+ return _GHAF;
+ case KAF:
+ return _KAF;
+ case GAF:
+ return _GAF;
+ case LAM:
+ return _LAM;
+ case MIM:
+ return _MIM;
+ case NOON:
+ return _NOON;
+ case YE:
+ case YE_:
+ return _YE;
+ case YEE:
+ case YEE_:
+ return _YEE;
+ case IE:
+ case IE_:
+ return _IE;
+ case F_HE:
+ tempc = _HE;
+
+ if (p_ri && (curwin->w_cursor.col+1 < STRLEN(ml_get_curline())))
+ {
+ inc_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = _HE_;
+
+ dec_cursor();
+ }
+ if (!p_ri && STRLEN(ml_get_curline()))
+ {
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = _HE_;
+
+ inc_cursor();
+ }
+
+ return tempc;
+ }
+ return 0;
+}
+
+/*
+** Convert the given Farsi character into Farsi capital character .
+*/
+ int
+toF_TyA(c)
+ int c ;
+{
+ switch (c)
+ {
+ case ALEF_:
+ return ALEF;
+ case ALEF_U_H_:
+ return ALEF_U_H;
+ case _BE:
+ return BE;
+ case _PE:
+ return PE;
+ case _TE:
+ return TE;
+ case _SE:
+ return SE;
+ case _JIM:
+ return JIM;
+ case _CHE:
+ return CHE;
+ case _HE_J:
+ return HE_J;
+ case _XE:
+ return XE;
+ case _SIN:
+ return SIN;
+ case _SHIN:
+ return SHIN;
+ case _SAD:
+ return SAD;
+ case _ZAD:
+ return ZAD;
+ case _AYN:
+ case AYN_:
+ case _AYN_:
+ return AYN;
+ case _GHAYN:
+ case GHAYN_:
+ case _GHAYN_:
+ return GHAYN;
+ case _FE:
+ return FE;
+ case _GHAF:
+ return GHAF;
+/* I am not sure what it is !!! case _KAF_H: */
+ case _KAF:
+ return KAF;
+ case _GAF:
+ return GAF;
+ case _LAM:
+ return LAM;
+ case _MIM:
+ return MIM;
+ case _NOON:
+ return NOON;
+ case _YE:
+ case YE_:
+ return YE;
+ case _YEE:
+ case YEE_:
+ return YEE;
+ case TEE_:
+ return TEE;
+ case _IE:
+ case IE_:
+ return IE;
+ case _HE:
+ case _HE_:
+ return F_HE;
+ }
+ return c;
+}
+
+/*
+** Is the character under the cursor+offset in the given buffer a join type.
+** That is a character that is combined with the others.
+** Note: the offset is used only for command line buffer.
+*/
+ static int
+F_is_TyB_TyC_TyD(src, offset)
+ int src, offset;
+{
+ int c;
+
+ if (src == SRC_EDT)
+ c = gchar_cursor();
+ else
+ c = cmd_gchar(AT_CURSOR+offset);
+
+ switch (c)
+ {
+ case _LAM:
+ case _BE:
+ case _PE:
+ case _TE:
+ case _SE:
+ case _JIM:
+ case _CHE:
+ case _HE_J:
+ case _XE:
+ case _SIN:
+ case _SHIN:
+ case _SAD:
+ case _ZAD:
+ case _TA:
+ case _ZA:
+ case _AYN:
+ case _AYN_:
+ case _GHAYN:
+ case _GHAYN_:
+ case _FE:
+ case _GHAF:
+ case _KAF:
+ case _KAF_H:
+ case _GAF:
+ case _MIM:
+ case _NOON:
+ case _YE:
+ case _YEE:
+ case _IE:
+ case _HE_:
+ case _HE:
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*
+** Is the Farsi character one of the terminating only type.
+*/
+ static int
+F_is_TyE(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF_A:
+ case ALEF_D_H:
+ case DAL:
+ case ZAL:
+ case RE:
+ case ZE:
+ case JE:
+ case WAW:
+ case WAW_H:
+ case HAMZE:
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*
+** Is the Farsi character one of the none leading type.
+*/
+ static int
+F_is_TyC_TyD(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF_:
+ case ALEF_U_H_:
+ case _AYN_:
+ case AYN_:
+ case _GHAYN_:
+ case GHAYN_:
+ case _HE_:
+ case YE_:
+ case IE_:
+ case TEE_:
+ case YEE_:
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*
+** Convert a none leading Farsi char into a leading type.
+*/
+ static int
+toF_TyB(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF_: return ALEF;
+ case ALEF_U_H_: return ALEF_U_H;
+ case _AYN_: return _AYN;
+ case AYN_: return AYN; /* exception - there are many of them */
+ case _GHAYN_: return _GHAYN;
+ case GHAYN_: return GHAYN; /* exception - there are many of them */
+ case _HE_: return _HE;
+ case YE_: return YE;
+ case IE_: return IE;
+ case TEE_: return TEE;
+ case YEE_: return YEE;
+ }
+ return c;
+}
+
+/*
+** Overwrite the current redo and cursor characters + left adjust
+*/
+ static void
+put_curr_and_l_to_X(c)
+ int c;
+{
+ int tempc;
+
+ if (curwin->w_p_rl && p_ri)
+ return;
+
+ if ( (curwin->w_cursor.col < STRLEN(ml_get_curline())))
+ {
+ if ((p_ri && curwin->w_cursor.col) || !p_ri)
+ {
+ if (p_ri)
+ dec_cursor();
+ else
+ inc_cursor();
+
+ if (F_is_TyC_TyD((tempc = gchar_cursor())))
+ {
+ pchar_cursor(toF_TyB(tempc));
+ AppendCharToRedobuff(K_BS);
+ AppendCharToRedobuff(tempc);
+ }
+
+ if (p_ri)
+ inc_cursor();
+ else
+ dec_cursor();
+ }
+ }
+
+ put_and_redo(c);
+}
+
+ static void
+put_and_redo(c)
+ int c;
+{
+ pchar_cursor(c);
+ AppendCharToRedobuff(K_BS);
+ AppendCharToRedobuff(c);
+}
+
+/*
+** Change the char. under the cursor to a X_ or X type
+*/
+ static void
+chg_c_toX_orX()
+{
+ int tempc, curc;
+
+ switch ((curc = gchar_cursor()))
+ {
+ case _BE:
+ tempc = BE;
+ break;
+ case _PE:
+ tempc = PE;
+ break;
+ case _TE:
+ tempc = TE;
+ break;
+ case _SE:
+ tempc = SE;
+ break;
+ case _JIM:
+ tempc = JIM;
+ break;
+ case _CHE:
+ tempc = CHE;
+ break;
+ case _HE_J:
+ tempc = HE_J;
+ break;
+ case _XE:
+ tempc = XE;
+ break;
+ case _SIN:
+ tempc = SIN;
+ break;
+ case _SHIN:
+ tempc = SHIN;
+ break;
+ case _SAD:
+ tempc = SAD;
+ break;
+ case _ZAD:
+ tempc = ZAD;
+ break;
+ case _FE:
+ tempc = FE;
+ break;
+ case _GHAF:
+ tempc = GHAF;
+ break;
+ case _KAF_H:
+ case _KAF:
+ tempc = KAF;
+ break;
+ case _GAF:
+ tempc = GAF;
+ break;
+ case _AYN:
+ tempc = AYN;
+ break;
+ case _AYN_:
+ tempc = AYN_;
+ break;
+ case _GHAYN:
+ tempc = GHAYN;
+ break;
+ case _GHAYN_:
+ tempc = GHAYN_;
+ break;
+ case _LAM:
+ tempc = LAM;
+ break;
+ case _MIM:
+ tempc = MIM;
+ break;
+ case _NOON:
+ tempc = NOON;
+ break;
+ case _HE:
+ case _HE_:
+ tempc = F_HE;
+ break;
+ case _YE:
+ case _IE:
+ case _YEE:
+ if (p_ri)
+ {
+ inc_cursor();
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = (curc == _YE ? YE_ :
+ (curc == _IE ? IE_ : YEE_));
+ else
+ tempc = (curc == _YE ? YE :
+ (curc == _IE ? IE : YEE));
+ dec_cursor();
+ }
+ else
+ {
+ if (curwin->w_cursor.col)
+ {
+ dec_cursor();
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = (curc == _YE ? YE_ :
+ (curc == _IE ? IE_ : YEE_));
+ else
+ tempc = (curc == _YE ? YE :
+ (curc == _IE ? IE : YEE));
+ inc_cursor();
+ }
+ else
+ tempc = (curc == _YE ? YE :
+ (curc == _IE ? IE : YEE));
+ }
+ break;
+ default:
+ tempc = 0;
+ }
+
+ if (tempc)
+ put_and_redo(tempc);
+}
+
+/*
+** Change the char. under the cursor to a _X_ or X_ type
+*/
+
+ static void
+chg_c_to_X_orX_()
+{
+ int tempc;
+
+ switch (gchar_cursor())
+ {
+ case ALEF:
+ tempc = ALEF_;
+ break;
+ case ALEF_U_H:
+ tempc = ALEF_U_H_;
+ break;
+ case _AYN:
+ tempc = _AYN_;
+ break;
+ case AYN:
+ tempc = AYN_;
+ break;
+ case _GHAYN:
+ tempc = _GHAYN_;
+ break;
+ case GHAYN:
+ tempc = GHAYN_;
+ break;
+ case _HE:
+ tempc = _HE_;
+ break;
+ case YE:
+ tempc = YE_;
+ break;
+ case IE:
+ tempc = IE_;
+ break;
+ case TEE:
+ tempc = TEE_;
+ break;
+ case YEE:
+ tempc = YEE_;
+ break;
+ default:
+ tempc = 0;
+ }
+
+ if (tempc)
+ put_and_redo(tempc);
+}
+
+/*
+** Change the char. under the cursor to a _X_ or _X type
+*/
+ static void
+chg_c_to_X_or_X ()
+{
+ int tempc;
+
+ tempc = gchar_cursor();
+
+ if (curwin->w_cursor.col+1 < STRLEN(ml_get_curline()))
+ {
+ inc_cursor();
+
+ if ((tempc == F_HE) && (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR)))
+ {
+ tempc = _HE_;
+
+ dec_cursor();
+
+ put_and_redo(tempc);
+ return;
+ }
+
+ dec_cursor();
+ }
+
+ if ((tempc = toF_Xor_X_(tempc)) != 0)
+ put_and_redo(tempc);
+}
+
+/*
+** Change the character left to the cursor to a _X_ or X_ type
+*/
+ static void
+chg_l_to_X_orX_ ()
+{
+ int tempc;
+
+ if (!curwin->w_cursor.col &&
+ (curwin->w_cursor.col+1 == STRLEN(ml_get_curline())))
+ return;
+
+ if (!curwin->w_cursor.col && p_ri)
+ return;
+
+ if (p_ri)
+ dec_cursor();
+ else
+ inc_cursor();
+
+ switch (gchar_cursor())
+ {
+ case ALEF:
+ tempc = ALEF_;
+ break;
+ case ALEF_U_H:
+ tempc = ALEF_U_H_;
+ break;
+ case _AYN:
+ tempc = _AYN_;
+ break;
+ case AYN:
+ tempc = AYN_;
+ break;
+ case _GHAYN:
+ tempc = _GHAYN_;
+ break;
+ case GHAYN:
+ tempc = GHAYN_;
+ break;
+ case _HE:
+ tempc = _HE_;
+ break;
+ case YE:
+ tempc = YE_;
+ break;
+ case IE:
+ tempc = IE_;
+ break;
+ case TEE:
+ tempc = TEE_;
+ break;
+ case YEE:
+ tempc = YEE_;
+ break;
+ default:
+ tempc = 0;
+ }
+
+ if (tempc)
+ put_and_redo(tempc);
+
+ if (p_ri)
+ inc_cursor();
+ else
+ dec_cursor();
+}
+
+/*
+** Change the charcter left to the cursor to a X or _X type
+*/
+
+ static void
+chg_l_toXor_X ()
+{
+ int tempc;
+
+ if (!curwin->w_cursor.col &&
+ (curwin->w_cursor.col+1 == STRLEN(ml_get_curline())))
+ return;
+
+ if (!curwin->w_cursor.col && p_ri)
+ return;
+
+ if (p_ri)
+ dec_cursor();
+ else
+ inc_cursor();
+
+ switch (gchar_cursor())
+ {
+ case ALEF_:
+ tempc = ALEF;
+ break;
+ case ALEF_U_H_:
+ tempc = ALEF_U_H;
+ break;
+ case _AYN_:
+ tempc = _AYN;
+ break;
+ case AYN_:
+ tempc = AYN;
+ break;
+ case _GHAYN_:
+ tempc = _GHAYN;
+ break;
+ case GHAYN_:
+ tempc = GHAYN;
+ break;
+ case _HE_:
+ tempc = _HE;
+ break;
+ case YE_:
+ tempc = YE;
+ break;
+ case IE_:
+ tempc = IE;
+ break;
+ case TEE_:
+ tempc = TEE;
+ break;
+ case YEE_:
+ tempc = YEE;
+ break;
+ default:
+ tempc = 0;
+ }
+
+ if (tempc)
+ put_and_redo(tempc);
+
+ if (p_ri)
+ inc_cursor();
+ else
+ dec_cursor();
+}
+
+/*
+** Change the charcter right to the cursor to a _X or _X_ type
+*/
+
+ static void
+chg_r_to_Xor_X_()
+{
+ int tempc, c;
+
+ if (curwin->w_cursor.col)
+ {
+ if (!p_ri)
+ dec_cursor();
+
+ tempc = gchar_cursor();
+
+ if ((c = toF_Xor_X_(tempc)) != 0)
+ put_and_redo(c);
+
+ if (!p_ri)
+ inc_cursor();
+
+ }
+}
+
+/*
+** Map Farsi keyboard when in fkmap mode.
+*/
+
+ int
+fkmap(c)
+ int c;
+{
+ int tempc;
+ static int revins;
+
+ if (IS_SPECIAL(c))
+ return c;
+
+ if (VIM_ISDIGIT(c) || ((c == '.' || c == '+' || c == '-' ||
+ c == '^' || c == '%' || c == '#' || c == '=') && revins))
+ {
+ if (!revins)
+ {
+ if (curwin->w_cursor.col)
+ {
+ if (!p_ri)
+ dec_cursor();
+
+ chg_c_toX_orX ();
+ chg_l_toXor_X ();
+
+ if (!p_ri)
+ inc_cursor();
+ }
+ }
+
+ arrow_used = TRUE;
+ (void)stop_arrow();
+
+ if (!curwin->w_p_rl && revins)
+ inc_cursor();
+
+ ++revins;
+ p_ri=1;
+ }
+ else
+ {
+ if (revins)
+ {
+ arrow_used = TRUE;
+ (void)stop_arrow();
+
+ revins = 0;
+ if (curwin->w_p_rl)
+ {
+ while ((F_isdigit(gchar_cursor())
+ || (gchar_cursor() == F_PERIOD
+ || gchar_cursor() == F_PLUS
+ || gchar_cursor() == F_MINUS
+ || gchar_cursor() == F_MUL
+ || gchar_cursor() == F_DIVIDE
+ || gchar_cursor() == F_PERCENT
+ || gchar_cursor() == F_EQUALS))
+ && gchar_cursor() != NUL)
+ ++curwin->w_cursor.col;
+ }
+ else
+ {
+ if (curwin->w_cursor.col)
+ while ((F_isdigit(gchar_cursor())
+ || (gchar_cursor() == F_PERIOD
+ || gchar_cursor() == F_PLUS
+ || gchar_cursor() == F_MINUS
+ || gchar_cursor() == F_MUL
+ || gchar_cursor() == F_DIVIDE
+ || gchar_cursor() == F_PERCENT
+ || gchar_cursor() == F_EQUALS))
+ && --curwin->w_cursor.col)
+ ;
+
+ if (!F_isdigit(gchar_cursor()))
+ ++curwin->w_cursor.col;
+ }
+ }
+ }
+
+ if (!revins)
+ {
+ if (curwin->w_p_rl)
+ p_ri=0;
+ if (!curwin->w_p_rl)
+ p_ri=1;
+ }
+
+ if ((c < 0x100) && (isalpha(c) || c == '&' || c == '^' || c == ';' ||
+ c == '\''|| c == ',' || c == '[' ||
+ c == ']' || c == '{' || c == '}' ))
+ chg_r_to_Xor_X_();
+
+ tempc = 0;
+
+ switch (c)
+ {
+ case '`':
+ case ' ':
+ case '.':
+ case '!':
+ case '"':
+ case '$':
+ case '%':
+ case '^':
+ case '&':
+ case '/':
+ case '(':
+ case ')':
+ case '=':
+ case '\\':
+ case '?':
+ case '+':
+ case '-':
+ case '_':
+ case '*':
+ case ':':
+ case '#':
+ case '~':
+ case '@':
+ case '<':
+ case '>':
+ case '{':
+ case '}':
+ case '|':
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ case 'B':
+ case 'E':
+ case 'F':
+ case 'H':
+ case 'I':
+ case 'K':
+ case 'L':
+ case 'M':
+ case 'O':
+ case 'P':
+ case 'Q':
+ case 'R':
+ case 'T':
+ case 'U':
+ case 'W':
+ case 'Y':
+ case NL:
+ case TAB:
+
+ if (p_ri && c == NL && curwin->w_cursor.col)
+ {
+ /*
+ ** If the char before the cursor is _X_ or X_ do not change
+ ** the one under the cursor with X type.
+ */
+
+ dec_cursor();
+
+ if (F_isalpha(gchar_cursor()))
+ {
+ inc_cursor();
+ return NL;
+ }
+
+ inc_cursor();
+ }
+
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ {
+ switch (c)
+ {
+ case '0': return FARSI_0;
+ case '1': return FARSI_1;
+ case '2': return FARSI_2;
+ case '3': return FARSI_3;
+ case '4': return FARSI_4;
+ case '5': return FARSI_5;
+ case '6': return FARSI_6;
+ case '7': return FARSI_7;
+ case '8': return FARSI_8;
+ case '9': return FARSI_9;
+ case 'B': return F_PSP;
+ case 'E': return JAZR_N;
+ case 'F': return ALEF_D_H;
+ case 'H': return ALEF_A;
+ case 'I': return TASH;
+ case 'K': return F_LQUOT;
+ case 'L': return F_RQUOT;
+ case 'M': return HAMZE;
+ case 'O': return '[';
+ case 'P': return ']';
+ case 'Q': return OO;
+ case 'R': return MAD_N;
+ case 'T': return OW;
+ case 'U': return MAD;
+ case 'W': return OW_OW;
+ case 'Y': return JAZR;
+ case '`': return F_PCN;
+ case '!': return F_EXCL;
+ case '@': return F_COMMA;
+ case '#': return F_DIVIDE;
+ case '$': return F_CURRENCY;
+ case '%': return F_PERCENT;
+ case '^': return F_MUL;
+ case '&': return F_BCOMMA;
+ case '*': return F_STAR;
+ case '(': return F_LPARENT;
+ case ')': return F_RPARENT;
+ case '-': return F_MINUS;
+ case '_': return F_UNDERLINE;
+ case '=': return F_EQUALS;
+ case '+': return F_PLUS;
+ case '\\': return F_BSLASH;
+ case '|': return F_PIPE;
+ case ':': return F_DCOLON;
+ case '"': return F_SEMICOLON;
+ case '.': return F_PERIOD;
+ case '/': return F_SLASH;
+ case '<': return F_LESS;
+ case '>': return F_GREATER;
+ case '?': return F_QUESTION;
+ case ' ': return F_BLANK;
+ }
+ break;
+ }
+ if (!p_ri)
+ dec_cursor();
+
+ switch ((tempc = gchar_cursor()))
+ {
+ case _BE:
+ case _PE:
+ case _TE:
+ case _SE:
+ case _JIM:
+ case _CHE:
+ case _HE_J:
+ case _XE:
+ case _SIN:
+ case _SHIN:
+ case _SAD:
+ case _ZAD:
+ case _FE:
+ case _GHAF:
+ case _KAF:
+ case _KAF_H:
+ case _GAF:
+ case _LAM:
+ case _MIM:
+ case _NOON:
+ case _HE:
+ case _HE_:
+ case _TA:
+ case _ZA:
+ put_curr_and_l_to_X(toF_TyA(tempc));
+ break;
+ case _AYN:
+ case _AYN_:
+
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ {
+ put_curr_and_l_to_X(AYN);
+ break;
+ }
+
+ if (p_ri)
+ inc_cursor();
+ else
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = AYN_;
+ else
+ tempc = AYN;
+
+ if (p_ri)
+ dec_cursor();
+ else
+ inc_cursor();
+
+ put_curr_and_l_to_X(tempc);
+
+ break;
+ case _GHAYN:
+ case _GHAYN_:
+
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ {
+ put_curr_and_l_to_X(GHAYN);
+ break;
+ }
+
+ if (p_ri)
+ inc_cursor();
+ else
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = GHAYN_;
+ else
+ tempc = GHAYN;
+
+ if (p_ri)
+ dec_cursor();
+ else
+ inc_cursor();
+
+ put_curr_and_l_to_X(tempc);
+ break;
+ case _YE:
+ case _IE:
+ case _YEE:
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ {
+ put_curr_and_l_to_X((tempc == _YE ? YE :
+ (tempc == _IE ? IE : YEE)));
+ break;
+ }
+
+ if (p_ri)
+ inc_cursor();
+ else
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = (tempc == _YE ? YE_ :
+ (tempc == _IE ? IE_ : YEE_));
+ else
+ tempc = (tempc == _YE ? YE :
+ (tempc == _IE ? IE : YEE));
+
+ if (p_ri)
+ dec_cursor();
+ else
+ inc_cursor();
+
+ put_curr_and_l_to_X(tempc);
+ break;
+ }
+
+ if (!p_ri)
+ inc_cursor();
+
+ tempc = 0;
+
+ switch (c)
+ {
+ case '0': return FARSI_0;
+ case '1': return FARSI_1;
+ case '2': return FARSI_2;
+ case '3': return FARSI_3;
+ case '4': return FARSI_4;
+ case '5': return FARSI_5;
+ case '6': return FARSI_6;
+ case '7': return FARSI_7;
+ case '8': return FARSI_8;
+ case '9': return FARSI_9;
+ case 'B': return F_PSP;
+ case 'E': return JAZR_N;
+ case 'F': return ALEF_D_H;
+ case 'H': return ALEF_A;
+ case 'I': return TASH;
+ case 'K': return F_LQUOT;
+ case 'L': return F_RQUOT;
+ case 'M': return HAMZE;
+ case 'O': return '[';
+ case 'P': return ']';
+ case 'Q': return OO;
+ case 'R': return MAD_N;
+ case 'T': return OW;
+ case 'U': return MAD;
+ case 'W': return OW_OW;
+ case 'Y': return JAZR;
+ case '`': return F_PCN;
+ case '!': return F_EXCL;
+ case '@': return F_COMMA;
+ case '#': return F_DIVIDE;
+ case '$': return F_CURRENCY;
+ case '%': return F_PERCENT;
+ case '^': return F_MUL;
+ case '&': return F_BCOMMA;
+ case '*': return F_STAR;
+ case '(': return F_LPARENT;
+ case ')': return F_RPARENT;
+ case '-': return F_MINUS;
+ case '_': return F_UNDERLINE;
+ case '=': return F_EQUALS;
+ case '+': return F_PLUS;
+ case '\\': return F_BSLASH;
+ case '|': return F_PIPE;
+ case ':': return F_DCOLON;
+ case '"': return F_SEMICOLON;
+ case '.': return F_PERIOD;
+ case '/': return F_SLASH;
+ case '<': return F_LESS;
+ case '>': return F_GREATER;
+ case '?': return F_QUESTION;
+ case ' ': return F_BLANK;
+ }
+ break;
+
+ case 'a':
+ tempc = _SHIN;
+ break;
+ case 'A':
+ tempc = WAW_H;
+ break;
+ case 'b':
+ tempc = ZAL;
+ break;
+ case 'c':
+ tempc = ZE;
+ break;
+ case 'C':
+ tempc = JE;
+ break;
+ case 'd':
+ tempc = _YE;
+ break;
+ case 'D':
+ tempc = _YEE;
+ break;
+ case 'e':
+ tempc = _SE;
+ break;
+ case 'f':
+ tempc = _BE;
+ break;
+ case 'g':
+ tempc = _LAM;
+ break;
+ case 'G':
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+
+ if (gchar_cursor() == _LAM)
+ chg_c_toX_orX ();
+ else
+ if (p_ri)
+ chg_c_to_X_or_X ();
+ }
+
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ return ALEF_U_H;
+
+ if (!p_ri)
+ dec_cursor();
+
+ if (gchar_cursor() == _LAM)
+ {
+ chg_c_toX_orX ();
+ chg_l_toXor_X ();
+ tempc = ALEF_U_H;
+ }
+ else
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ {
+ tempc = ALEF_U_H_;
+ chg_l_toXor_X ();
+ }
+ else
+ tempc = ALEF_U_H;
+
+ if (!p_ri)
+ inc_cursor();
+
+ return tempc;
+ case 'h':
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+ if (p_ri)
+ chg_c_to_X_or_X ();
+
+ }
+
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ return ALEF;
+
+ if (!p_ri)
+ dec_cursor();
+
+ if (gchar_cursor() == _LAM)
+ {
+ chg_l_toXor_X();
+ del_char(FALSE);
+ AppendCharToRedobuff(K_BS);
+
+ if (!p_ri)
+ dec_cursor();
+
+ tempc = LA;
+ }
+ else
+ {
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ {
+ tempc = ALEF_;
+ chg_l_toXor_X ();
+ }
+ else
+ tempc = ALEF;
+ }
+
+ if (!p_ri)
+ inc_cursor();
+
+ return tempc;
+ case 'i':
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+ if (!p_ri && !F_is_TyE(tempc))
+ chg_c_to_X_orX_ ();
+ if (p_ri)
+ chg_c_to_X_or_X ();
+
+ }
+
+ if (!p_ri && !curwin->w_cursor.col)
+ return _HE;
+
+ if (!p_ri)
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = _HE_;
+ else
+ tempc = _HE;
+
+ if (!p_ri)
+ inc_cursor();
+ break;
+ case 'j':
+ tempc = _TE;
+ break;
+ case 'J':
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+ if (p_ri)
+ chg_c_to_X_or_X ();
+
+ }
+
+ if (!p_ri)
+ if (!curwin->w_cursor.col)
+ return TEE;
+
+ if (!p_ri)
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ {
+ tempc = TEE_;
+ chg_l_toXor_X ();
+ }
+ else
+ tempc = TEE;
+
+ if (!p_ri)
+ inc_cursor();
+
+ return tempc;
+ case 'k':
+ tempc = _NOON;
+ break;
+ case 'l':
+ tempc = _MIM;
+ break;
+ case 'm':
+ tempc = _PE;
+ break;
+ case 'n':
+ case 'N':
+ tempc = DAL;
+ break;
+ case 'o':
+ tempc = _XE;
+ break;
+ case 'p':
+ tempc = _HE_J;
+ break;
+ case 'q':
+ tempc = _ZAD;
+ break;
+ case 'r':
+ tempc = _GHAF;
+ break;
+ case 's':
+ tempc = _SIN;
+ break;
+ case 'S':
+ tempc = _IE;
+ break;
+ case 't':
+ tempc = _FE;
+ break;
+ case 'u':
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+ if (!p_ri && !F_is_TyE(tempc))
+ chg_c_to_X_orX_ ();
+ if (p_ri)
+ chg_c_to_X_or_X ();
+
+ }
+
+ if (!p_ri && !curwin->w_cursor.col)
+ return _AYN;
+
+ if (!p_ri)
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = _AYN_;
+ else
+ tempc = _AYN;
+
+ if (!p_ri)
+ inc_cursor();
+ break;
+ case 'v':
+ case 'V':
+ tempc = RE;
+ break;
+ case 'w':
+ tempc = _SAD;
+ break;
+ case 'x':
+ case 'X':
+ tempc = _TA;
+ break;
+ case 'y':
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+ if (!p_ri && !F_is_TyE(tempc))
+ chg_c_to_X_orX_ ();
+ if (p_ri)
+ chg_c_to_X_or_X ();
+
+ }
+
+ if (!p_ri && !curwin->w_cursor.col)
+ return _GHAYN;
+
+ if (!p_ri)
+ dec_cursor();
+
+ if (F_is_TyB_TyC_TyD(SRC_EDT, AT_CURSOR))
+ tempc = _GHAYN_;
+ else
+ tempc = _GHAYN;
+
+ if (!p_ri)
+ inc_cursor();
+
+ break;
+ case 'z':
+ tempc = _ZA;
+ break;
+ case 'Z':
+ tempc = _KAF_H;
+ break;
+ case ';':
+ tempc = _KAF;
+ break;
+ case '\'':
+ tempc = _GAF;
+ break;
+ case ',':
+ tempc = WAW;
+ break;
+ case '[':
+ tempc = _JIM;
+ break;
+ case ']':
+ tempc = _CHE;
+ break;
+ }
+
+ if ((F_isalpha(tempc) || F_isdigit(tempc)))
+ {
+ if (!curwin->w_cursor.col && STRLEN(ml_get_curline()))
+ {
+ if (!p_ri && !F_is_TyE(tempc))
+ chg_c_to_X_orX_ ();
+ if (p_ri)
+ chg_c_to_X_or_X ();
+ }
+
+ if (curwin->w_cursor.col)
+ {
+ if (!p_ri)
+ dec_cursor();
+
+ if (F_is_TyE(tempc))
+ chg_l_toXor_X ();
+ else
+ chg_l_to_X_orX_ ();
+
+ if (!p_ri)
+ inc_cursor();
+ }
+ }
+ if (tempc)
+ return tempc;
+ return c;
+}
+
+/*
+** Convert a none leading Farsi char into a leading type.
+*/
+ static int
+toF_leading(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF_: return ALEF;
+ case ALEF_U_H_: return ALEF_U_H;
+ case BE: return _BE;
+ case PE: return _PE;
+ case TE: return _TE;
+ case SE: return _SE;
+ case JIM: return _JIM;
+ case CHE: return _CHE;
+ case HE_J: return _HE_J;
+ case XE: return _XE;
+ case SIN: return _SIN;
+ case SHIN: return _SHIN;
+ case SAD: return _SAD;
+ case ZAD: return _ZAD;
+
+ case AYN:
+ case AYN_:
+ case _AYN_: return _AYN;
+
+ case GHAYN:
+ case GHAYN_:
+ case _GHAYN_: return _GHAYN;
+
+ case FE: return _FE;
+ case GHAF: return _GHAF;
+ case KAF: return _KAF;
+ case GAF: return _GAF;
+ case LAM: return _LAM;
+ case MIM: return _MIM;
+ case NOON: return _NOON;
+
+ case _HE_:
+ case F_HE: return _HE;
+
+ case YE:
+ case YE_: return _YE;
+
+ case IE_:
+ case IE: return _IE;
+
+ case YEE:
+ case YEE_: return _YEE;
+ }
+ return c;
+}
+
+/*
+** Convert a given Farsi char into right joining type.
+*/
+ static int
+toF_Rjoin(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF: return ALEF_;
+ case ALEF_U_H: return ALEF_U_H_;
+ case BE: return _BE;
+ case PE: return _PE;
+ case TE: return _TE;
+ case SE: return _SE;
+ case JIM: return _JIM;
+ case CHE: return _CHE;
+ case HE_J: return _HE_J;
+ case XE: return _XE;
+ case SIN: return _SIN;
+ case SHIN: return _SHIN;
+ case SAD: return _SAD;
+ case ZAD: return _ZAD;
+
+ case AYN:
+ case AYN_:
+ case _AYN: return _AYN_;
+
+ case GHAYN:
+ case GHAYN_:
+ case _GHAYN_: return _GHAYN_;
+
+ case FE: return _FE;
+ case GHAF: return _GHAF;
+ case KAF: return _KAF;
+ case GAF: return _GAF;
+ case LAM: return _LAM;
+ case MIM: return _MIM;
+ case NOON: return _NOON;
+
+ case _HE:
+ case F_HE: return _HE_;
+
+ case YE:
+ case YE_: return _YE;
+
+ case IE_:
+ case IE: return _IE;
+
+ case TEE: return TEE_;
+
+ case YEE:
+ case YEE_: return _YEE;
+ }
+ return c;
+}
+
+/*
+** Can a given Farsi character join via its left edj.
+*/
+ static int
+canF_Ljoin(c)
+ int c;
+{
+ switch (c)
+ {
+ case _BE:
+ case BE:
+ case PE:
+ case _PE:
+ case TE:
+ case _TE:
+ case SE:
+ case _SE:
+ case JIM:
+ case _JIM:
+ case CHE:
+ case _CHE:
+ case HE_J:
+ case _HE_J:
+ case XE:
+ case _XE:
+ case SIN:
+ case _SIN:
+ case SHIN:
+ case _SHIN:
+ case SAD:
+ case _SAD:
+ case ZAD:
+ case _ZAD:
+ case _TA:
+ case _ZA:
+ case AYN:
+ case _AYN:
+ case _AYN_:
+ case AYN_:
+ case GHAYN:
+ case GHAYN_:
+ case _GHAYN_:
+ case _GHAYN:
+ case FE:
+ case _FE:
+ case GHAF:
+ case _GHAF:
+ case _KAF_H:
+ case KAF:
+ case _KAF:
+ case GAF:
+ case _GAF:
+ case LAM:
+ case _LAM:
+ case MIM:
+ case _MIM:
+ case NOON:
+ case _NOON:
+ case IE:
+ case _IE:
+ case IE_:
+ case YE:
+ case _YE:
+ case YE_:
+ case YEE:
+ case _YEE:
+ case YEE_:
+ case F_HE:
+ case _HE:
+ case _HE_:
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/*
+** Can a given Farsi character join via its right edj.
+*/
+ static int
+canF_Rjoin(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF:
+ case ALEF_:
+ case ALEF_U_H:
+ case ALEF_U_H_:
+ case DAL:
+ case ZAL:
+ case RE:
+ case JE:
+ case ZE:
+ case TEE:
+ case TEE_:
+ case WAW:
+ case WAW_H:
+ return TRUE;
+ }
+
+ return canF_Ljoin(c);
+
+}
+
+/*
+** is a given Farsi character a terminating type.
+*/
+ static int
+F_isterm(c)
+ int c;
+{
+ switch (c)
+ {
+ case ALEF:
+ case ALEF_:
+ case ALEF_U_H:
+ case ALEF_U_H_:
+ case DAL:
+ case ZAL:
+ case RE:
+ case JE:
+ case ZE:
+ case WAW:
+ case WAW_H:
+ case TEE:
+ case TEE_:
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/*
+** Convert the given Farsi character into a ending type .
+*/
+ static int
+toF_ending(c)
+ int c;
+{
+
+ switch (c)
+ {
+ case _BE:
+ return BE;
+ case _PE:
+ return PE;
+ case _TE:
+ return TE;
+ case _SE:
+ return SE;
+ case _JIM:
+ return JIM;
+ case _CHE:
+ return CHE;
+ case _HE_J:
+ return HE_J;
+ case _XE:
+ return XE;
+ case _SIN:
+ return SIN;
+ case _SHIN:
+ return SHIN;
+ case _SAD:
+ return SAD;
+ case _ZAD:
+ return ZAD;
+ case _AYN:
+ return AYN;
+ case _AYN_:
+ return AYN_;
+ case _GHAYN:
+ return GHAYN;
+ case _GHAYN_:
+ return GHAYN_;
+ case _FE:
+ return FE;
+ case _GHAF:
+ return GHAF;
+ case _KAF_H:
+ case _KAF:
+ return KAF;
+ case _GAF:
+ return GAF;
+ case _LAM:
+ return LAM;
+ case _MIM:
+ return MIM;
+ case _NOON:
+ return NOON;
+ case _YE:
+ return YE_;
+ case YE_:
+ return YE;
+ case _YEE:
+ return YEE_;
+ case YEE_:
+ return YEE;
+ case TEE:
+ return TEE_;
+ case _IE:
+ return IE_;
+ case IE_:
+ return IE;
+ case _HE:
+ case _HE_:
+ return F_HE;
+ }
+ return c;
+}
+
+/*
+** Convert the Farsi 3342 standard into Farsi VIM.
+*/
+ void
+conv_to_pvim()
+{
+ char_u *ptr;
+ int lnum, llen, i;
+
+ for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
+ {
+ ptr = ml_get((linenr_T)lnum);
+
+ llen = (int)STRLEN(ptr);
+
+ for ( i = 0; i < llen-1; i++)
+ {
+ if (canF_Ljoin(ptr[i]) && canF_Rjoin(ptr[i+1]))
+ {
+ ptr[i] = toF_leading(ptr[i]);
+ ++i;
+
+ while(canF_Rjoin(ptr[i]) && (i < llen))
+ {
+ ptr[i] = toF_Rjoin(ptr[i]);
+ if (F_isterm(ptr[i]) || !F_isalpha(ptr[i]))
+ break;
+ ++i;
+ }
+ if (!F_isalpha(ptr[i]) || !canF_Rjoin(ptr[i]))
+ ptr[i-1] = toF_ending(ptr[i-1]);
+ }
+ else
+ ptr[i] = toF_TyA(ptr[i]);
+ }
+ }
+
+ /*
+ * Following lines contains Farsi encoded character.
+ */
+
+ do_cmdline_cmd((char_u *)"%s/\202\231/\232/g");
+ do_cmdline_cmd((char_u *)"%s/\201\231/\370\334/g");
+
+ /* Assume the screen has been messed up: clear it and redraw. */
+ redraw_later(CLEAR);
+ MSG_ATTR(farsi_text_1, hl_attr(HLF_S));
+}
+
+/*
+ * Convert the Farsi VIM into Farsi 3342 standad.
+ */
+ void
+conv_to_pstd()
+{
+ char_u *ptr;
+ int lnum, llen, i;
+
+ /*
+ * Following line contains Farsi encoded character.
+ */
+
+ do_cmdline_cmd((char_u *)"%s/\232/\202\231/g");
+
+ for (lnum = 1; lnum <= curbuf->b_ml.ml_line_count; ++lnum)
+ {
+ ptr = ml_get((linenr_T)lnum);
+
+ llen = (int)STRLEN(ptr);
+
+ for ( i = 0; i < llen; i++)
+ {
+ ptr[i] = toF_TyA(ptr[i]);
+
+ }
+ }
+
+ /* Assume the screen has been messed up: clear it and redraw. */
+ redraw_later(CLEAR);
+ MSG_ATTR(farsi_text_2, hl_attr(HLF_S));
+}
+
+/*
+ * left-right swap the characters in buf[len].
+ */
+ static void
+lrswapbuf(buf, len)
+ char_u *buf;
+ int len;
+{
+ char_u *s, *e;
+ int c;
+
+ s = buf;
+ e = buf + len - 1;
+
+ while (e > s)
+ {
+ c = *s;
+ *s = *e;
+ *e = c;
+ ++s;
+ --e;
+ }
+}
+
+/*
+ * swap all the characters in reverse direction
+ */
+ char_u *
+lrswap(ibuf)
+ char_u *ibuf;
+{
+ if (ibuf != NULL && *ibuf != NUL)
+ lrswapbuf(ibuf, (int)STRLEN(ibuf));
+ return ibuf;
+}
+
+/*
+ * swap all the Farsi characters in reverse direction
+ */
+ char_u *
+lrFswap(cmdbuf, len)
+ char_u *cmdbuf;
+ int len;
+{
+ int i, cnt;
+
+ if (cmdbuf == NULL)
+ return cmdbuf;
+
+ if (len == 0 && (len = (int)STRLEN(cmdbuf)) == 0)
+ return cmdbuf;
+
+ for (i = 0; i < len; i++)
+ {
+ for (cnt = 0; i + cnt < len
+ && (F_isalpha(cmdbuf[i + cnt])
+ || F_isdigit(cmdbuf[i + cnt])
+ || cmdbuf[i + cnt] == ' '); ++cnt)
+ ;
+
+ lrswapbuf(cmdbuf + i, cnt);
+ i += cnt;
+ }
+ return cmdbuf;
+}
+
+/*
+ * Reverse the characters in the seach path and substitude section accordingly
+ */
+ char_u *
+lrF_sub(ibuf)
+ char_u *ibuf;
+{
+ char_u *p, *ep;
+ int i, cnt;
+
+ p = ibuf;
+
+ /* Find the boundry of the search path */
+ while (((p = vim_strchr(++p, '/')) != NULL) && p[-1] == '\\')
+ ;
+
+ if (p == NULL)
+ return ibuf;
+
+ /* Reverse the Farsi characters in the search path. */
+ lrFswap(ibuf, (int)(p-ibuf));
+
+ /* Now find the boundry of the substitute section */
+ if ((ep = (char_u *)strrchr((char *)++p, '/')) != NULL)
+ cnt = (int)(ep - p);
+ else
+ cnt = (int)STRLEN(p);
+
+ /* Reverse the characters in the substitute section and take care of '\' */
+ for (i = 0; i < cnt-1; i++)
+ if (p[i] == '\\')
+ {
+ p[i] = p[i+1] ;
+ p[++i] = '\\';
+ }
+
+ lrswapbuf(p, cnt);
+
+ return ibuf;
+}
+
+/*
+ * Map Farsi keyboard when in cmd_fkmap mode.
+ */
+ int
+cmdl_fkmap(c)
+ int c;
+{
+ int tempc;
+
+ switch (c)
+ {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ case '`':
+ case ' ':
+ case '.':
+ case '!':
+ case '"':
+ case '$':
+ case '%':
+ case '^':
+ case '&':
+ case '/':
+ case '(':
+ case ')':
+ case '=':
+ case '\\':
+ case '?':
+ case '+':
+ case '-':
+ case '_':
+ case '*':
+ case ':':
+ case '#':
+ case '~':
+ case '@':
+ case '<':
+ case '>':
+ case '{':
+ case '}':
+ case '|':
+ case 'B':
+ case 'E':
+ case 'F':
+ case 'H':
+ case 'I':
+ case 'K':
+ case 'L':
+ case 'M':
+ case 'O':
+ case 'P':
+ case 'Q':
+ case 'R':
+ case 'T':
+ case 'U':
+ case 'W':
+ case 'Y':
+ case NL:
+ case TAB:
+
+ switch ((tempc = cmd_gchar(AT_CURSOR)))
+ {
+ case _BE:
+ case _PE:
+ case _TE:
+ case _SE:
+ case _JIM:
+ case _CHE:
+ case _HE_J:
+ case _XE:
+ case _SIN:
+ case _SHIN:
+ case _SAD:
+ case _ZAD:
+ case _AYN:
+ case _GHAYN:
+ case _FE:
+ case _GHAF:
+ case _KAF:
+ case _GAF:
+ case _LAM:
+ case _MIM:
+ case _NOON:
+ case _HE:
+ case _HE_:
+ cmd_pchar(toF_TyA(tempc), AT_CURSOR);
+ break;
+ case _AYN_:
+ cmd_pchar(AYN_, AT_CURSOR);
+ break;
+ case _GHAYN_:
+ cmd_pchar(GHAYN_, AT_CURSOR);
+ break;
+ case _IE:
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR+1))
+ cmd_pchar(IE_, AT_CURSOR);
+ else
+ cmd_pchar(IE, AT_CURSOR);
+ break;
+ case _YEE:
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR+1))
+ cmd_pchar(YEE_, AT_CURSOR);
+ else
+ cmd_pchar(YEE, AT_CURSOR);
+ break;
+ case _YE:
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR+1))
+ cmd_pchar(YE_, AT_CURSOR);
+ else
+ cmd_pchar(YE, AT_CURSOR);
+ }
+
+ switch (c)
+ {
+ case '0': return FARSI_0;
+ case '1': return FARSI_1;
+ case '2': return FARSI_2;
+ case '3': return FARSI_3;
+ case '4': return FARSI_4;
+ case '5': return FARSI_5;
+ case '6': return FARSI_6;
+ case '7': return FARSI_7;
+ case '8': return FARSI_8;
+ case '9': return FARSI_9;
+ case 'B': return F_PSP;
+ case 'E': return JAZR_N;
+ case 'F': return ALEF_D_H;
+ case 'H': return ALEF_A;
+ case 'I': return TASH;
+ case 'K': return F_LQUOT;
+ case 'L': return F_RQUOT;
+ case 'M': return HAMZE;
+ case 'O': return '[';
+ case 'P': return ']';
+ case 'Q': return OO;
+ case 'R': return MAD_N;
+ case 'T': return OW;
+ case 'U': return MAD;
+ case 'W': return OW_OW;
+ case 'Y': return JAZR;
+ case '`': return F_PCN;
+ case '!': return F_EXCL;
+ case '@': return F_COMMA;
+ case '#': return F_DIVIDE;
+ case '$': return F_CURRENCY;
+ case '%': return F_PERCENT;
+ case '^': return F_MUL;
+ case '&': return F_BCOMMA;
+ case '*': return F_STAR;
+ case '(': return F_LPARENT;
+ case ')': return F_RPARENT;
+ case '-': return F_MINUS;
+ case '_': return F_UNDERLINE;
+ case '=': return F_EQUALS;
+ case '+': return F_PLUS;
+ case '\\': return F_BSLASH;
+ case '|': return F_PIPE;
+ case ':': return F_DCOLON;
+ case '"': return F_SEMICOLON;
+ case '.': return F_PERIOD;
+ case '/': return F_SLASH;
+ case '<': return F_LESS;
+ case '>': return F_GREATER;
+ case '?': return F_QUESTION;
+ case ' ': return F_BLANK;
+ }
+
+ break;
+
+ case 'a': return _SHIN;
+ case 'A': return WAW_H;
+ case 'b': return ZAL;
+ case 'c': return ZE;
+ case 'C': return JE;
+ case 'd': return _YE;
+ case 'D': return _YEE;
+ case 'e': return _SE;
+ case 'f': return _BE;
+ case 'g': return _LAM;
+ case 'G':
+ if (cmd_gchar(AT_CURSOR) == _LAM )
+ {
+ cmd_pchar(LAM, AT_CURSOR);
+ return ALEF_U_H;
+ }
+
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
+ return ALEF_U_H_;
+ else
+ return ALEF_U_H;
+ case 'h':
+ if (cmd_gchar(AT_CURSOR) == _LAM )
+ {
+ cmd_pchar(LA, AT_CURSOR);
+ redrawcmdline();
+ return K_IGNORE;
+ }
+
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
+ return ALEF_;
+ else
+ return ALEF;
+ case 'i':
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
+ return _HE_;
+ else
+ return _HE;
+ case 'j': return _TE;
+ case 'J':
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
+ return TEE_;
+ else
+ return TEE;
+ case 'k': return _NOON;
+ case 'l': return _MIM;
+ case 'm': return _PE;
+ case 'n':
+ case 'N': return DAL;
+ case 'o': return _XE;
+ case 'p': return _HE_J;
+ case 'q': return _ZAD;
+ case 'r': return _GHAF;
+ case 's': return _SIN;
+ case 'S': return _IE;
+ case 't': return _FE;
+ case 'u':
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
+ return _AYN_;
+ else
+ return _AYN;
+ case 'v':
+ case 'V': return RE;
+ case 'w': return _SAD;
+ case 'x':
+ case 'X': return _TA;
+ case 'y':
+ if (F_is_TyB_TyC_TyD(SRC_CMD, AT_CURSOR))
+ return _GHAYN_;
+ else
+ return _GHAYN;
+ case 'z':
+ case 'Z': return _ZA;
+ case ';': return _KAF;
+ case '\'': return _GAF;
+ case ',': return WAW;
+ case '[': return _JIM;
+ case ']': return _CHE;
+ }
+
+ return c;
+}
+
+/*
+ * F_isalpha returns TRUE if 'c' is a Farsi alphabet
+ */
+ int
+F_isalpha(c)
+ int c;
+{
+ return (( c >= TEE_ && c <= _YE)
+ || (c >= ALEF_A && c <= YE)
+ || (c >= _IE && c <= YE_));
+}
+
+/*
+ * F_isdigit returns TRUE if 'c' is a Farsi digit
+ */
+ int
+F_isdigit(c)
+ int c;
+{
+ return (c >= FARSI_0 && c <= FARSI_9);
+}
+
+/*
+ * F_ischar returns TRUE if 'c' is a Farsi character.
+ */
+ int
+F_ischar(c)
+ int c;
+{
+ return (c >= TEE_ && c <= YE_);
+}
+
+ void
+farsi_fkey(cap)
+ cmdarg_T *cap;
+{
+ int c = cap->cmdchar;
+
+ if (c == K_F8)
+ {
+ if (p_altkeymap)
+ {
+ if (curwin->w_farsi & W_R_L)
+ {
+ p_fkmap = 0;
+ do_cmdline_cmd((char_u *)"set norl");
+ MSG("");
+ }
+ else
+ {
+ p_fkmap = 1;
+ do_cmdline_cmd((char_u *)"set rl");
+ MSG("");
+ }
+
+ curwin->w_farsi = curwin->w_farsi ^ W_R_L;
+ }
+ }
+
+ if (c == K_F9)
+ {
+ if (p_altkeymap && curwin->w_p_rl)
+ {
+ curwin->w_farsi = curwin->w_farsi ^ W_CONV;
+ if (curwin->w_farsi & W_CONV)
+ conv_to_pvim();
+ else
+ conv_to_pstd();
+ }
+ }
+}
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