summaryrefslogtreecommitdiff
path: root/ext/mbstring/libmbfl/filters/mbfilter_utf8.c
diff options
context:
space:
mode:
Diffstat (limited to 'ext/mbstring/libmbfl/filters/mbfilter_utf8.c')
-rw-r--r--ext/mbstring/libmbfl/filters/mbfilter_utf8.c184
1 files changed, 94 insertions, 90 deletions
diff --git a/ext/mbstring/libmbfl/filters/mbfilter_utf8.c b/ext/mbstring/libmbfl/filters/mbfilter_utf8.c
index fcee610533..5539700343 100644
--- a/ext/mbstring/libmbfl/filters/mbfilter_utf8.c
+++ b/ext/mbstring/libmbfl/filters/mbfilter_utf8.c
@@ -79,7 +79,7 @@ const struct mbfl_convert_vtbl vtbl_utf8_wchar = {
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_utf8_wchar,
- mbfl_filt_conv_common_flush
+ mbfl_filt_conv_utf8_wchar_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_utf8 = {
@@ -93,6 +93,17 @@ const struct mbfl_convert_vtbl vtbl_wchar_utf8 = {
#define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
+int mbfl_filt_put_invalid_char(int c, mbfl_convert_filter *filter)
+{
+ int w;
+ w = c & MBFL_WCSGROUP_MASK;
+ w |= MBFL_WCSGROUP_THROUGH;
+ filter->status = 0;
+ filter->cache = 0;
+ CK((*filter->output_function)(w, filter->data));
+}
+
+
/*
* UTF-8 => wchar
*/
@@ -100,111 +111,104 @@ int mbfl_filt_conv_utf8_wchar(int c, mbfl_convert_filter *filter)
{
int s, c1, w = 0, flag = 0;
- if (c < 0x80) {
- if (filter->status != 0) {
- w = (filter->cache & MBFL_WCSGROUP_MASK) | MBFL_WCSGROUP_THROUGH;
- CK((*filter->output_function)(w, filter->data));
- filter->status = 0;
- filter->cache = 0;
- }
- if (c >= 0) {
+retry:
+ switch (filter->status & 0xff) {
+ case 0x00:
+ if (c < 0x80) {
CK((*filter->output_function)(c, filter->data));
+ } else if (c >= 0xc2 && c <= 0xdf) { /* 2byte code first char: 0xc2-0xdf */
+ filter->status = 0x10;
+ filter->cache = c & 0x1f;
+ } else if (c >= 0xe0 && c <= 0xef) { /* 3byte code first char: 0xe0-0xef */
+ filter->status = 0x20;
+ filter->cache = c & 0xf;
+ } else if (c >= 0xf0 && c <= 0xf4) { /* 3byte code first char: 0xf0-0xf4 */
+ filter->status = 0x30;
+ filter->cache = c & 0x7;
+ } else {
+ mbfl_filt_put_invalid_char(c, filter);
}
- } else if (c < 0xc0) {
- int status = filter->status & 0xff;
- switch (status) {
- case 0x10: /* 2byte code 2nd char: 0x80-0xbf */
- case 0x21: /* 3byte code 3rd char: 0x80-0xbf */
- case 0x32: /* 4byte code 4th char: 0x80-0xbf */
- filter->status = 0;
- s = filter->cache | (c & 0x3f);
+ break;
+ case 0x10: /* 2byte code 2nd char: 0x80-0xbf */
+ case 0x21: /* 3byte code 3rd char: 0x80-0xbf */
+ case 0x32: /* 4byte code 4th char: 0x80-0xbf */
+ filter->status = 0;
+ if (c >= 0x80 && c <= 0xbf) {
+ s = (filter->cache<<6) | (c & 0x3f);
filter->cache = 0;
- if ((status == 0x10 && s >= 0x80) ||
- (status == 0x21 && s >= 0x800 && (s < 0xd800 || s > 0xdfff)) ||
- (status == 0x32 && s >= 0x10000 && s < 0x110000)) {
- CK((*filter->output_function)(s, filter->data));
- } else {
- w = s & MBFL_WCSGROUP_MASK;
- flag = 1;
- }
- break;
- case 0x20: /* 3byte code 2nd char: 0:0xa0-0xbf,D:0x80-9F,1-C,E-F:0x80-0x9f */
- s = filter->cache | ((c & 0x3f) << 6);
- c1 = (s >> 12) & 0xf;
- if ((c1 == 0x0 && c >= 0xa0) ||
- (c1 == 0xd && c < 0xa0) ||
- (c1 > 0x0 && c1 != 0xd)) {
- filter->cache = s;
- filter->status++;
- } else {
- w = s & MBFL_WCSGROUP_MASK;
- flag = 1;
- }
- break;
- case 0x31: /* 4byte code 3rd char: 0x80-0xbf */
- filter->cache |= ((c & 0x3f) << 6);
- filter->status++;
- break;
- case 0x30: /* 4byte code 2nd char: 0:0x90-0xbf,1-3:0x80-0xbf,4:0x80-0x8f */
- s = filter->cache | ((c & 0x3f) << 12);
- c1 = (s >> 18) & 0x7;
- if ((c1 == 0x0 && c >= 0x90) ||
- (c1 > 0x0 && c1 < 0x4) ||
- (c1 == 0x4 && c < 0x90)) {
- filter->cache = s;
- filter->status++;
- } else {
- w = s & MBFL_WCSGROUP_MASK;
- flag = 1;
- }
- break;
- default:
- w = c & MBFL_WCSGROUP_MASK;
- flag = 1;
- break;
+ CK((*filter->output_function)(s, filter->data));
+ } else {
+ mbfl_filt_put_invalid_char(filter->cache, filter);
+ goto retry;
}
- } else if (c < 0xc2) { /* invalid: 0xc0,0xc1 */
- w = c & MBFL_WCSGROUP_MASK;
- flag = 1;
- } else if (c < 0xe0) { /* 2byte code first char: 0xc2-0xdf */
- if (filter->status == 0x0) {
- filter->status = 0x10;
- filter->cache = (c & 0x1f) << 6;
+ break;
+ case 0x20: /* 3byte code 2nd char: 0:0xa0-0xbf,D:0x80-9F,1-C,E-F:0x80-0x9f */
+ s = (filter->cache<<6) | (c & 0x3f);
+ c1 = filter->cache & 0xf;
+
+ if ((c >= 0x80 && c <= 0xbf) &&
+ ((c1 == 0x0 && c >= 0xa0) ||
+ (c1 == 0xd && c < 0xa0) ||
+ (c1 > 0x0 && c1 != 0xd))) {
+ filter->cache = s;
+ filter->status++;
} else {
- w = c & MBFL_WCSGROUP_MASK;
- flag = 1;
+ mbfl_filt_put_invalid_char(filter->cache, filter);
+ goto retry;
}
- } else if (c < 0xf0) { /* 3byte code first char: 0xe0-0xef */
- if (filter->status == 0x0) {
- filter->status = 0x20;
- filter->cache = (c & 0xf) << 12;
+ break;
+ case 0x30: /* 4byte code 2nd char: 0:0x90-0xbf,1-3:0x80-0xbf,4:0x80-0x8f */
+ s = (filter->cache<<6) | (c & 0x3f);
+ c1 = filter->cache & 0x7;
+
+ if ((c >= 0x80 && c <= 0xbf) &&
+ ((c1 == 0x0 && c >= 0x90) ||
+ (c1 == 0x4 && c < 0x90) ||
+ (c1 > 0x0 && c1 != 0x4))) {
+ filter->cache = s;
+ filter->status++;
} else {
- w = c & MBFL_WCSGROUP_MASK;
- flag = 1;
+ mbfl_filt_put_invalid_char(filter->cache, filter);
+ goto retry;
}
- } else if (c < 0xf5) { /* 4byte code first char: 0xf0-0xf4 */
- if (filter->status == 0x0) {
- filter->status = 0x30;
- filter->cache = (c & 0x7) << 18;
+ break;
+ case 0x31: /* 4byte code 3rd char: 0x80-0xbf */
+ if (c >= 0x80 && c <= 0xbf) {
+ filter->cache = (filter->cache<<6) | (c & 0x3f);
+ filter->status++;
} else {
- w = c & MBFL_WCSGROUP_MASK;
- flag = 1;
+ mbfl_filt_put_invalid_char(filter->cache, filter);
+ goto retry;
}
- } else {
- w = c & MBFL_WCSGROUP_MASK;
- flag = 1;
- }
-
- if (flag) {
- w |= MBFL_WCSGROUP_THROUGH;
- CK((*filter->output_function)(w, filter->data));
+ break;
+ default:
filter->status = 0;
- filter->cache = 0;
+ break;
}
return c;
}
+int mbfl_filt_conv_utf8_wchar_flush(mbfl_convert_filter *filter)
+{
+ int status, cache;
+
+ status = filter->status;
+ cache = filter->cache;
+
+ filter->status = 0;
+ filter->cache = 0;
+
+ if (status != 0) {
+ mbfl_filt_put_invalid_char(cache, filter);
+ }
+
+ if (filter->flush_function != NULL) {
+ (*filter->flush_function)(filter->data);
+ }
+ return 0;
+}
+
/*
* wchar => UTF-8
*/
View Lorry Controller Status