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authorDavid Robillard <d@drobilla.net>2011-01-24 23:59:03 +0000
committerDavid Robillard <d@drobilla.net>2011-01-24 23:59:03 +0000
commit634b5459db03b4cd00539ec45b6a3b23f29481de (patch)
tree579989276635d6b37a3e0e9c100143c7be2340ac
parente4daedb841acef2a4839a33e7c17ee8ea5fa6913 (diff)
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Remove support for 5 and 6 byte UTF-8 characters.
The UTF-8 spec supports this, but I can't even find real characters to test it with. There don't seem to be actual Unicode code points this high yet. If it can't be tested, it can't be useful. Gone. git-svn-id: http://svn.drobilla.net/serd/trunk@55 490d8e77-9747-427b-9fa3-0b8f29cee8a0
-rw-r--r--src/reader.c16
-rw-r--r--src/writer.c8
-rw-r--r--tests/UTF-8.ttl5
3 files changed, 2 insertions, 27 deletions
diff --git a/src/reader.c b/src/reader.c
index 773dd99b..3a4ef452 100644
--- a/src/reader.c
+++ b/src/reader.c
@@ -349,10 +349,6 @@ read_hex_escape(SerdReader reader, unsigned length, Ref dest)
size = 3;
} else if (c < 0x00200000) {
size = 4;
- } else if (c < 0x04000000) {
- size = 5;
- } else if (c < 0x80000000) {
- size = 6;
} else {
return false;
}
@@ -360,14 +356,6 @@ read_hex_escape(SerdReader reader, unsigned length, Ref dest)
// Build output in buf
// (Note # of bytes = # of leading 1 bits in first byte)
switch (size) {
- case 6:
- buf[5] = 0x80 | (uint8_t)(c & 0x3F);
- c >>= 6;
- c |= (4 << 24); // set bit 2
- case 5:
- buf[4] = 0x80 | (uint8_t)(c & 0x3F);
- c >>= 6;
- c |= (8 << 18); // set bit 3
case 4:
buf[3] = 0x80 | (uint8_t)(c & 0x3F);
c >>= 6;
@@ -488,10 +476,6 @@ read_character(SerdReader reader, Ref dest)
size = 3;
} else if ((c & 0xF8) == 0xF0) { // Starts with `11110'
size = 4;
- } else if ((c & 0xFC) == 0xF8) { // Starts with `111110'
- size = 5;
- } else if ((c & 0xFE) == 0xFC) { // Starts with `1111110'
- size = 6;
} else {
error(reader, "invalid character\n");
return SERD_ERROR;
diff --git a/src/writer.c b/src/writer.c
index 1de08a4c..d7d38baa 100644
--- a/src/writer.c
+++ b/src/writer.c
@@ -101,12 +101,6 @@ write_text(SerdWriter writer, TextContext ctx,
} else if ((in & 0xF8) == 0xF0) { // Starts with `11110'
size = 4;
c = in & 0x07;
- } else if ((in & 0xFC) == 0xF8) { // Starts with `111110'
- size = 5;
- c = in & 0x03;
- } else if ((in & 0xFE) == 0xFC) { // Starts with `1111110'
- size = 6;
- c = in & 0x01;
} else {
fprintf(stderr, "invalid UTF-8 at offset %zu: %X\n", i, in);
return false;
@@ -128,8 +122,6 @@ write_text(SerdWriter writer, TextContext ctx,
} while (0)
switch (size) {
- case 6: READ_BYTE();
- case 5: READ_BYTE();
case 4: READ_BYTE();
case 3: READ_BYTE();
case 2: READ_BYTE();
diff --git a/tests/UTF-8.ttl b/tests/UTF-8.ttl
index 66be456e..9e9a7b33 100644
--- a/tests/UTF-8.ttl
+++ b/tests/UTF-8.ttl
@@ -214,7 +214,6 @@ Box drawing alignment tests: █
▝▀▘▙▄▟
""" .
<> rdfs:comment """
- 5 byte character: \U3FFFFFF
- 6 byte character: \U7FFFFFFF
+ Two byte Unicode escape: \U00E0
+ Largest Unicode escape in Turtle: \U0010FFFF
""" .
-