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[Qemacs-devel] Changes to qemacs/qfribidi.c
|
From: |
Charlie Gordon |
|
Subject: |
[Qemacs-devel] Changes to qemacs/qfribidi.c |
|
Date: |
Wed, 11 May 2005 11:12:18 -0400 |
Index: qemacs/qfribidi.c
diff -u qemacs/qfribidi.c:1.2 qemacs/qfribidi.c:1.3
--- qemacs/qfribidi.c:1.2 Thu May 5 11:10:26 2005
+++ qemacs/qfribidi.c Wed May 11 15:12:14 2005
@@ -246,7 +246,7 @@
p = list_tab;
q = list_tab;
- for(;;) {
+ for (;;) {
lp = p;
type = p->type;
len = p->len;
@@ -276,42 +276,42 @@
/* Rules for overriding current type */
#define TYPE_RULE1(old_this, \
- new_this) \
+ new_this) \
if (this_type == TYPE_ ## old_this) \
RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
/* Rules for current and previous type */
#define TYPE_RULE2(old_prev, old_this, \
- new_prev, new_this) \
+ new_prev, new_this) \
if ( prev_type == FRIBIDI_TYPE_ ## old_prev \
- && this_type == FRIBIDI_TYPE_ ## old_this) \
+ && this_type == FRIBIDI_TYPE_ ## old_this) \
{ \
- RL_TYPE(pp->prev) = FRIBIDI_TYPE_ ## new_prev; \
- RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
+ RL_TYPE(pp->prev) = FRIBIDI_TYPE_ ## new_prev; \
+ RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
continue; \
}
/* A full rule that assigns all three types */
#define TYPE_RULE(old_prev, old_this, old_next, \
- new_prev, new_this, new_next) \
+ new_prev, new_this, new_next) \
if ( prev_type == FRIBIDI_TYPE_ ## old_prev \
- && this_type == FRIBIDI_TYPE_ ## old_this \
- && next_type == FRIBIDI_TYPE_ ## old_next) \
+ && this_type == FRIBIDI_TYPE_ ## old_this \
+ && next_type == FRIBIDI_TYPE_ ## old_next) \
{ \
- RL_TYPE(pp->prev) = FRIBIDI_TYPE_ ## new_prev; \
- RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
- RL_TYPE(pp->next) = FRIBIDI_TYPE_ ## new_next; \
+ RL_TYPE(pp->prev) = FRIBIDI_TYPE_ ## new_prev; \
+ RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
+ RL_TYPE(pp->next) = FRIBIDI_TYPE_ ## new_next; \
continue; \
}
/* For optimization the following macro only assigns the center type */
#define TYPE_RULE_C(old_prev, old_this, old_next, \
- new_this) \
+ new_this) \
if ( prev_type == FRIBIDI_TYPE_ ## old_prev \
- && this_type == FRIBIDI_TYPE_ ## old_this \
- && next_type == FRIBIDI_TYPE_ ## old_next) \
+ && this_type == FRIBIDI_TYPE_ ## old_this \
+ && next_type == FRIBIDI_TYPE_ ## old_next) \
{ \
- RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
+ RL_TYPE(pp) = FRIBIDI_TYPE_ ## new_this; \
continue; \
}
@@ -345,8 +345,8 @@
{
TypeLink *pp;
- for(pp = pp_tab + 1; pp->type != FRIBIDI_TYPE_EOT; pp++) {
- printf("%d:%c(%d)[%d] ", RL_POS(pp), type_to_char(RL_TYPE(pp)),
RL_LEN(pp), level ? RL_LEVEL(pp) : 0);
+ for (pp = pp_tab + 1; pp->type != FRIBIDI_TYPE_EOT; pp++) {
+ printf("%d:%c(%d)[%d] ", RL_POS(pp), type_to_char(RL_TYPE(pp)),
RL_LEN(pp), level ? RL_LEVEL(pp) : 0);
}
printf("\n");
}
@@ -380,47 +380,47 @@
/* Find the base level */
if (*pbase_dir == FRIBIDI_TYPE_L) {
- base_dir = FRIBIDI_TYPE_L;
- base_level = 0;
+ base_dir = FRIBIDI_TYPE_L;
+ base_level = 0;
} else if (*pbase_dir == FRIBIDI_TYPE_R) {
- base_dir = FRIBIDI_TYPE_R;
- base_level = 1;
+ base_dir = FRIBIDI_TYPE_R;
+ base_level = 1;
}
/* Search for first strong character and use its direction as base
direction */
else {
- base_level = 0; /* Default */
- base_dir = FRIBIDI_TYPE_N;
- for (pp = type_rl_list; pp->type != FRIBIDI_TYPE_EOT; pp++) {
+ base_level = 0; /* Default */
+ base_dir = FRIBIDI_TYPE_N;
+ for (pp = type_rl_list; pp->type != FRIBIDI_TYPE_EOT; pp++) {
int type;
type = RL_TYPE(pp);
- if (type == FRIBIDI_TYPE_R ||
+ if (type == FRIBIDI_TYPE_R ||
type == FRIBIDI_TYPE_RLE ||
type == FRIBIDI_TYPE_RLO) {
- base_level = 1;
- base_dir = FRIBIDI_TYPE_R;
- break;
- } else if (type == FRIBIDI_TYPE_L ||
+ base_level = 1;
+ base_dir = FRIBIDI_TYPE_R;
+ break;
+ } else if (type == FRIBIDI_TYPE_L ||
type == FRIBIDI_TYPE_LRE ||
type == FRIBIDI_TYPE_LRO) {
- base_level = 0;
- base_dir = FRIBIDI_TYPE_L;
- break;
- }
- }
-
- /* If no strong base_dir was found, resort to the weak direction
- * that was passed on input.
- */
- if (base_dir == FRIBIDI_TYPE_N) {
- if (*pbase_dir == FRIBIDI_TYPE_WR) {
- base_dir = FRIBIDI_TYPE_RTL;
- base_level = 1;
- } else if (*pbase_dir == FRIBIDI_TYPE_WL) {
- base_dir = FRIBIDI_TYPE_LTR;
- base_level = 0;
- }
- }
+ base_level = 0;
+ base_dir = FRIBIDI_TYPE_L;
+ break;
+ }
+ }
+
+ /* If no strong base_dir was found, resort to the weak direction
+ * that was passed on input.
+ */
+ if (base_dir == FRIBIDI_TYPE_N) {
+ if (*pbase_dir == FRIBIDI_TYPE_WR) {
+ base_dir = FRIBIDI_TYPE_RTL;
+ base_level = 1;
+ } else if (*pbase_dir == FRIBIDI_TYPE_WL) {
+ base_dir = FRIBIDI_TYPE_LTR;
+ base_level = 0;
+ }
+ }
}
/* hack for RLE/LRE/RLO/LRO/PDF. It is not complete in case of
@@ -436,7 +436,7 @@
type == FRIBIDI_TYPE_RLE ||
type == FRIBIDI_TYPE_LRO ||
type == FRIBIDI_TYPE_RLO) {
- for(i=0;i<RL_LEN(pp);i++) {
+ for (i = 0; i < RL_LEN(pp); i++) {
if (stack_index < STACK_SIZE) {
/* push level & override */
stack_level[stack_index] = level;
@@ -460,7 +460,7 @@
}
RL_TYPE(pp) = FRIBIDI_TYPE_NULL;
} else if (type == FRIBIDI_TYPE_PDF) {
- for(i=0;i<RL_LEN(pp);i++) {
+ for (i = 0; i < RL_LEN(pp); i++) {
if (stack_index > 0) {
stack_index--;
/* pop level & override */
@@ -482,66 +482,66 @@
/* 4. Resolving weak types */
last_strong = base_dir;
for (pp = type_rl_list + 1; pp->type != FRIBIDI_TYPE_EOT; pp++) {
- int prev_type = RL_TYPE(pp-1);
- int this_type = RL_TYPE(pp);
- int next_type = RL_TYPE(pp+1);
-
- /* Remember the last strong character */
- if (prev_type == FRIBIDI_TYPE_AL
- || prev_type == FRIBIDI_TYPE_R
- || prev_type == FRIBIDI_TYPE_L)
- last_strong = prev_type;
-
- /* W1. NSM */
- if (this_type == FRIBIDI_TYPE_NSM) {
- if (prev_type == FRIBIDI_TYPE_SOT)
- RL_TYPE(pp) = FRIBIDI_TYPE_N; /* Will be resolved to base dir
*/
- else
- RL_TYPE(pp) = prev_type;
- }
- /* W2: European numbers */
- if (this_type == FRIBIDI_TYPE_N
- && last_strong == FRIBIDI_TYPE_AL)
- RL_TYPE(pp) = FRIBIDI_TYPE_AN;
-
- /* W3: Change ALs to R
- We have to do this for prev character as we would otherwise
- interfer with the next last_strong which is FRIBIDI_TYPE_AL.
- */
- if (prev_type == FRIBIDI_TYPE_AL)
- RL_TYPE(pp-1) = FRIBIDI_TYPE_R;
-
- /* W4. A single european separator changes to a european number.
- A single common separator between two numbers of the same type
- changes to that type.
- */
- if (RL_LEN(pp) == 1) {
- TYPE_RULE_C(EN, ES, EN, EN);
- TYPE_RULE_C(EN, CS, EN, EN);
- TYPE_RULE_C(AN, CS, AN, AN);
- }
- /* W5. A sequence of European terminators adjacent to European
- numbers changes to All European numbers.
- */
- if (this_type == FRIBIDI_TYPE_ET) {
- if (next_type == FRIBIDI_TYPE_EN
- || prev_type == FRIBIDI_TYPE_EN) {
- RL_TYPE(pp) = FRIBIDI_TYPE_EN;
- }
- }
- /* This type may have been overriden */
- this_type = RL_TYPE(pp);
-
- /* W6. Otherwise change separators and terminators to other neutral */
- if (this_type == FRIBIDI_TYPE_ET
- || this_type == FRIBIDI_TYPE_CS
- || this_type == FRIBIDI_TYPE_ES)
- RL_TYPE(pp) = FRIBIDI_TYPE_ON;
-
- /* W7. Change european numbers to L. */
- if (prev_type == FRIBIDI_TYPE_EN
- && last_strong == FRIBIDI_TYPE_L)
- RL_TYPE(pp-1) = FRIBIDI_TYPE_L;
+ int prev_type = RL_TYPE(pp-1);
+ int this_type = RL_TYPE(pp);
+ int next_type = RL_TYPE(pp+1);
+
+ /* Remember the last strong character */
+ if (prev_type == FRIBIDI_TYPE_AL
+ || prev_type == FRIBIDI_TYPE_R
+ || prev_type == FRIBIDI_TYPE_L)
+ last_strong = prev_type;
+
+ /* W1. NSM */
+ if (this_type == FRIBIDI_TYPE_NSM) {
+ if (prev_type == FRIBIDI_TYPE_SOT)
+ RL_TYPE(pp) = FRIBIDI_TYPE_N; /* Will be resolved to base
dir */
+ else
+ RL_TYPE(pp) = prev_type;
+ }
+ /* W2: European numbers */
+ if (this_type == FRIBIDI_TYPE_N
+ && last_strong == FRIBIDI_TYPE_AL)
+ RL_TYPE(pp) = FRIBIDI_TYPE_AN;
+
+ /* W3: Change ALs to R
+ We have to do this for prev character as we would otherwise
+ interfer with the next last_strong which is FRIBIDI_TYPE_AL.
+ */
+ if (prev_type == FRIBIDI_TYPE_AL)
+ RL_TYPE(pp-1) = FRIBIDI_TYPE_R;
+
+ /* W4. A single european separator changes to a european number.
+ A single common separator between two numbers of the same type
+ changes to that type.
+ */
+ if (RL_LEN(pp) == 1) {
+ TYPE_RULE_C(EN, ES, EN, EN);
+ TYPE_RULE_C(EN, CS, EN, EN);
+ TYPE_RULE_C(AN, CS, AN, AN);
+ }
+ /* W5. A sequence of European terminators adjacent to European
+ numbers changes to All European numbers.
+ */
+ if (this_type == FRIBIDI_TYPE_ET) {
+ if (next_type == FRIBIDI_TYPE_EN
+ || prev_type == FRIBIDI_TYPE_EN) {
+ RL_TYPE(pp) = FRIBIDI_TYPE_EN;
+ }
+ }
+ /* This type may have been overriden */
+ this_type = RL_TYPE(pp);
+
+ /* W6. Otherwise change separators and terminators to other neutral */
+ if (this_type == FRIBIDI_TYPE_ET
+ || this_type == FRIBIDI_TYPE_CS
+ || this_type == FRIBIDI_TYPE_ES)
+ RL_TYPE(pp) = FRIBIDI_TYPE_ON;
+
+ /* W7. Change european numbers to L. */
+ if (prev_type == FRIBIDI_TYPE_EN
+ && last_strong == FRIBIDI_TYPE_L)
+ RL_TYPE(pp-1) = FRIBIDI_TYPE_L;
}
compact_list(type_rl_list);
@@ -551,42 +551,42 @@
/* We can now collapse all separators and other neutral types to
plain neutrals */
for (pp = type_rl_list + 1; pp->type != FRIBIDI_TYPE_EOT; pp++) {
- int this_type = RL_TYPE(pp);
+ int this_type = RL_TYPE(pp);
- if (this_type == FRIBIDI_TYPE_WS
- || this_type == FRIBIDI_TYPE_ON
- || this_type == FRIBIDI_TYPE_ES
- || this_type == FRIBIDI_TYPE_ET
- || this_type == FRIBIDI_TYPE_CS
- || this_type == FRIBIDI_TYPE_BN)
- RL_TYPE(pp) = FRIBIDI_TYPE_N;
+ if (this_type == FRIBIDI_TYPE_WS
+ || this_type == FRIBIDI_TYPE_ON
+ || this_type == FRIBIDI_TYPE_ES
+ || this_type == FRIBIDI_TYPE_ET
+ || this_type == FRIBIDI_TYPE_CS
+ || this_type == FRIBIDI_TYPE_BN)
+ RL_TYPE(pp) = FRIBIDI_TYPE_N;
}
compact_list(type_rl_list);
for (pp = type_rl_list + 1; pp->type != FRIBIDI_TYPE_EOT; pp++) {
- int prev_type = RL_TYPE(pp-1);
- int this_type = RL_TYPE(pp);
- int next_type = RL_TYPE(pp+1);
-
- if (this_type == FRIBIDI_TYPE_N) { /* optimization! */
- /* "European and arabic numbers are treated
- as though they were R" */
-
- if (prev_type == FRIBIDI_TYPE_EN || prev_type == FRIBIDI_TYPE_AN)
- prev_type = FRIBIDI_TYPE_R;
-
- if (next_type == FRIBIDI_TYPE_EN || next_type == FRIBIDI_TYPE_AN)
- next_type = FRIBIDI_TYPE_R;
-
- /* N1. */
- TYPE_RULE_C(R, N, R, R);
- TYPE_RULE_C(L, N, L, L);
-
- /* N2. Any remaining neutrals takes the embedding direction */
- if (RL_TYPE(pp) == FRIBIDI_TYPE_N)
- RL_TYPE(pp) = FRIBIDI_TYPE_E;
- }
+ int prev_type = RL_TYPE(pp-1);
+ int this_type = RL_TYPE(pp);
+ int next_type = RL_TYPE(pp+1);
+
+ if (this_type == FRIBIDI_TYPE_N) { /* optimization! */
+ /* "European and arabic numbers are treated
+ as though they were R" */
+
+ if (prev_type == FRIBIDI_TYPE_EN || prev_type == FRIBIDI_TYPE_AN)
+ prev_type = FRIBIDI_TYPE_R;
+
+ if (next_type == FRIBIDI_TYPE_EN || next_type == FRIBIDI_TYPE_AN)
+ next_type = FRIBIDI_TYPE_R;
+
+ /* N1. */
+ TYPE_RULE_C(R, N, R, R);
+ TYPE_RULE_C(L, N, L, L);
+
+ /* N2. Any remaining neutrals takes the embedding direction */
+ if (RL_TYPE(pp) == FRIBIDI_TYPE_N)
+ RL_TYPE(pp) = FRIBIDI_TYPE_E;
+ }
}
compact_list(type_rl_list);
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