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path: root/ext/mbstring/libmbfl/filters/mbfilter_big5.c
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Diffstat (limited to 'ext/mbstring/libmbfl/filters/mbfilter_big5.c')
-rw-r--r--ext/mbstring/libmbfl/filters/mbfilter_big5.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/ext/mbstring/libmbfl/filters/mbfilter_big5.c b/ext/mbstring/libmbfl/filters/mbfilter_big5.c
index f5ab8809ce..5e1ca815da 100644
--- a/ext/mbstring/libmbfl/filters/mbfilter_big5.c
+++ b/ext/mbstring/libmbfl/filters/mbfilter_big5.c
@@ -138,6 +138,17 @@ static unsigned short cp950_pua_tbl[][4] = {
{0xf70f,0xf848,0xc740,0xc8fe},
};
+static inline int is_in_cp950_pua(int c1, int c) {
+ if ((c1 >= 0xfa && c1 <= 0xfe) || (c1 >= 0x8e && c1 <= 0xa0) ||
+ (c1 >= 0x81 && c1 <= 0x8d) || (c1 >= 0xc7 && c1 <= 0xc8)) {
+ return (c >=0x40 && c <= 0x7e) || (c >= 0xa1 && c <= 0xfe);
+ }
+ if (c1 == 0xc6) {
+ return c >= 0xa1 && c <= 0xfe;
+ }
+ return 0;
+}
+
/*
* Big5 => wchar
*/
@@ -186,11 +197,7 @@ mbfl_filt_conv_big5_wchar(int c, mbfl_convert_filter *filter)
if (filter->from->no_encoding == mbfl_no_encoding_cp950) {
/* PUA for CP950 */
- if (w <= 0 &&
- (((c1 >= 0xfa && c1 <= 0xfe) || (c1 >= 0x8e && c1 <= 0xa0) ||
- (c1 >= 0x81 && c1 <= 0x8d) ||(c1 >= 0xc7 && c1 <= 0xc8))
- && ((c > 0x39 && c < 0x7f) || (c > 0xa0 && c < 0xff))) ||
- ((c1 == 0xc6) && (c > 0xa0 && c < 0xff))) {
+ if (w <= 0 && is_in_cp950_pua(c1, c)) {
c2 = c1 << 8 | c;
for (k = 0; k < sizeof(cp950_pua_tbl)/(sizeof(unsigned short)*4); k++) {
if (c2 >= cp950_pua_tbl[k][2] && c2 <= cp950_pua_tbl[k][3]) {