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authorRich Felker <dalias@aerifal.cx>2012-04-23 19:19:26 -0400
committerRich Felker <dalias@aerifal.cx>2012-04-23 19:19:26 -0400
commit1a63a9fc30e7a1f1239e3cedcb5041e5ec1c5351 (patch)
tree9ab2438310a30b91aa19962205d0a6fe065d868e /src/ctype/towctrans.c
parent38b5d7d0526be24fba0f0789407727e4e7950e63 (diff)
downloadmusl-1a63a9fc30e7a1f1239e3cedcb5041e5ec1c5351.tar.gz
sync case mappings with unicode 6.1
also special-case ß (U+00DF) as lowercase even though it does not have a mapping to uppercase. unicode added an uppercase version of this character but does not map it, presumably because the uppercase version is not actually used except for some obscure purpose...
Diffstat (limited to 'src/ctype/towctrans.c')
-rw-r--r--src/ctype/towctrans.c36
1 files changed, 29 insertions, 7 deletions
diff --git a/src/ctype/towctrans.c b/src/ctype/towctrans.c
index 0b1eed04..2842d690 100644
--- a/src/ctype/towctrans.c
+++ b/src/ctype/towctrans.c
@@ -30,6 +30,7 @@ static const struct {
CASELACE(0x4c1,0x4cd),
CASELACE(0x4d0,0x50e),
+ CASELACE(0x514,0x526),
CASEMAP(0x531,0x556,0x561),
CASELACE(0x01a0,0x01a4),
@@ -69,12 +70,19 @@ static const struct {
CASEMAP(0x2c00,0x2c2e,0x2c30),
CASELACE(0x2c67,0x2c6b),
CASELACE(0x2c80,0x2ce2),
+ CASELACE(0x2ceb,0x2ced),
+
+ CASELACE(0xa640,0xa66c),
+ CASELACE(0xa680,0xa696),
CASELACE(0xa722,0xa72e),
CASELACE(0xa732,0xa76e),
CASELACE(0xa779,0xa77b),
CASELACE(0xa77e,0xa786),
+ CASELACE(0xa790,0xa792),
+ CASELACE(0xa7a0,0xa7a8),
+
CASEMAP(0xff21,0xff3a,0xff41),
{ 0,0,0 }
};
@@ -144,6 +152,8 @@ static const unsigned short pairs[][2] = {
{ 0x03f7, 0x03f8 },
{ 0x03fa, 0x03fb },
{ 0x1e60, 0x1e9b },
+ { 0xdf, 0xdf },
+ { 0x1e9e, 0xdf },
{ 0x1f59, 0x1f51 },
{ 0x1f5b, 0x1f53 },
@@ -181,10 +191,20 @@ static const unsigned short pairs[][2] = {
{ 0x2c6d, 0x251 },
{ 0x2c6e, 0x271 },
{ 0x2c6f, 0x250 },
+ { 0x2c70, 0x252 },
{ 0x2c72, 0x2c73 },
{ 0x2c75, 0x2c76 },
+ { 0x2c7e, 0x23f },
+ { 0x2c7f, 0x240 },
+ { 0x2cf2, 0x2cf3 },
{ 0xa77d, 0x1d79 },
+ { 0xa78b, 0xa78c },
+ { 0xa78d, 0x265 },
+ { 0xa7aa, 0x266 },
+
+ { 0x10c7, 0x2d27 },
+ { 0x10cd, 0x2d2d },
/* bogus greek 'symbol' letters */
{ 0x376, 0x377 },
@@ -207,17 +227,19 @@ static wchar_t __towcase(wchar_t wc, int lower)
int i;
int lmul = 2*lower-1;
int lmask = lower-1;
- if ((unsigned)wc - 0x10400 < 0x50)
- return wc + lmul*0x28;
/* no letters with case in these large ranges */
if (!iswalpha(wc)
|| (unsigned)wc - 0x0600 <= 0x0fff-0x0600
- || (unsigned)wc - 0x2e00 <= 0xa6ff-0x2e00
+ || (unsigned)wc - 0x2e00 <= 0xa63f-0x2e00
|| (unsigned)wc - 0xa800 <= 0xfeff-0xa800)
return wc;
/* special case because the diff between upper/lower is too big */
- if ((unsigned)wc - 0x10a0 < 0x26 || (unsigned)wc - 0x2d00 < 0x26)
- return wc + lmul*(0x2d00-0x10a0);
+ if (lower && (unsigned)wc - 0x10a0 < 0x2e)
+ if (wc>0x10c5 && wc != 0x10c7 && wc != 0x10cd) return wc;
+ else return wc + 0x2d00 - 0x10a0;
+ if (!lower && (unsigned)wc - 0x2d00 < 0x26)
+ if (wc>0x2d25 && wc != 0x2d27 && wc != 0x2d2d) return wc;
+ else return wc + 0x10a0 - 0x2d00;
for (i=0; casemaps[i].len; i++) {
int base = casemaps[i].upper + (lmask & casemaps[i].lower);
if ((unsigned)wc-base < casemaps[i].len) {
@@ -230,8 +252,8 @@ static wchar_t __towcase(wchar_t wc, int lower)
if (pairs[i][1-lower] == wc)
return pairs[i][lower];
}
- if ((unsigned)wc - 0x10428 + (lower<<5) + (lower<<3) < 0x28)
- return wc - 0x28 + (lower<<10) + (lower<<6);
+ if ((unsigned)wc - (0x10428 - 0x28*lower) < 0x28)
+ return wc - 0x28 + 0x50*lower;
return wc;
}