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exclude more invalid unicode chars

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-01-31 16:04:30 +01:00
parent 344a44fbc5
commit 40e4e88a28
2 changed files with 183 additions and 10 deletions
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72
libbb/unicode_wcwidth.c
View File

@ -59,8 +59,39 @@
* Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
*/
#if CONFIG_LAST_SUPPORTED_WCHAR == 0
# define LAST_SUPPORTED_WCHAR ((1 << 31) - 1)
/* Assigned Unicode character ranges:
* Plane Range
* 0 0000–FFFF Basic Multilingual Plane
* 1 10000–1FFFF Supplementary Multilingual Plane
* 2 20000–2FFFF Supplementary Ideographic Plane
* 3 30000-3FFFF Tertiary Ideographic Plane (no chars assigned yet)
* 4-13 40000–DFFFF currently unassigned
* 14 E0000–EFFFF Supplementary Special-purpose Plane
* 15 F0000–FFFFF Supplementary Private Use Area-A
* 16 100000–10FFFF Supplementary Private Use Area-B
*
* "Supplementary Special-purpose Plane currently contains non-graphical
* characters in two blocks of 128 and 240 characters. The first block
* is for language tag characters for use when language cannot be indicated
* through other protocols (such as the xml:lang attribute in XML).
* The other block contains glyph variation selectors to indicate
* an alternate glyph for a character that cannot be determined by context."
*
* In simpler terms: it is a tool to fix the "Han unification" mess
* created by Unicode committee, to select Chinese/Japanese/Korean/Taiwan
* version of a character. (They forgot that the whole purpose of the Unicode
* was to be able to write all chars in one charset without such tricks).
* Until East Asian users say it is actually necessary to support these
* code points in console applications like busybox
* (i.e. do these chars ever appear in filenames, hostnames, text files
* and such?), we are treating these code points as invalid.
*
* Tertiary Ideographic Plane is also ignored for now,
* until Unicode committee assigns something there.
*/
#if CONFIG_LAST_SUPPORTED_WCHAR < 126 || CONFIG_LAST_SUPPORTED_WCHAR > 0x30000
# define LAST_SUPPORTED_WCHAR 0x30000
#else
# define LAST_SUPPORTED_WCHAR CONFIG_LAST_SUPPORTED_WCHAR
#endif
@ -429,7 +460,8 @@ static int wcwidth(unsigned ucs)
#undef BIG_
#undef PAIR
};
# if LAST_SUPPORTED_WCHAR >= 0x1100
# if LAST_SUPPORTED_WCHAR >= 0x10000
/* Combining chars in Supplementary Multilingual Plane 0x1xxxx */
static const struct interval combining0x10000[] = {
{ 0x0A01, 0x0A03 }, { 0x0A05, 0x0A06 }, { 0x0A0C, 0x0A0F },
{ 0x0A38, 0x0A3A }, { 0x0A3F, 0x0A3F }, { 0xD167, 0xD169 },
@ -462,12 +494,35 @@ static int wcwidth(unsigned ucs)
# if LAST_SUPPORTED_WCHAR < 0x1100
return -1;
# else
/* binary search in table of non-spacing characters, cont. */
if (ucs >= LAST_SUPPORTED_WCHAR)
return -1;
/* High (d800..dbff) and low (dc00..dfff) surrogates are invalid (used only by UTF16) */
/* We also exclude Private Use Area (e000..f8ff) */
if (LAST_SUPPORTED_WCHAR >= 0xd800
&& (ucs >= 0xd800 || ucs <= 0xf8ff)
) {
return -1;
}
/* 0xfffe and 0xffff in every plane are invalid */
if (LAST_SUPPORTED_WCHAR >= 0xfffe
&& (ucs & 0xfffe) == 0xfffe
) {
return -1;
}
# if LAST_SUPPORTED_WCHAR >= 0x10000
/* binary search in table of non-spacing characters in Supplementary Multilingual Plane */
if (in_interval_table(ucs ^ 0x10000, combining0x10000, ARRAY_SIZE(combining0x10000) - 1))
return 0;
if (ucs == 0xE0001
|| (ucs >= 0xE0020 && ucs <= 0xE007F)
|| (ucs >= 0xE0100 && ucs <= 0xE01EF)
# endif
/* Check a few non-spacing chars in Supplementary Special-purpose Plane 0xExxxx */
if (LAST_SUPPORTED_WCHAR >= 0xE0001
&& ( ucs == 0xE0001
|| (ucs >= 0xE0020 && ucs <= 0xE007F)
|| (ucs >= 0xE0100 && ucs <= 0xE01EF)
)
) {
return 0;
}
@ -485,8 +540,7 @@ static int wcwidth(unsigned ucs)
|| (ucs >= 0xfe30 && ucs <= 0xfe6f) /* CJK Compatibility Forms */
|| (ucs >= 0xff00 && ucs <= 0xff60) /* Fullwidth Forms */
|| (ucs >= 0xffe0 && ucs <= 0xffe6)
|| (ucs >= 0x20000 && ucs <= 0x2fffd)
|| (ucs >= 0x30000 && ucs <= 0x3fffd)
|| ((ucs >> 17) == (2 >> 1)) /* 20000..3ffff: Supplementary and Tertiary Ideographic Planes */
);
# endif
#endif

121
testsuite/ls.tests
View File

@ -18,7 +18,7 @@ test x"$CONFIG_FEATURE_ASSUME_UNICODE" = x"y" \
&& test x"$CONFIG_LOCALE_SUPPORT" != x"y" \
&& test x"$CONFIG_SUBST_WCHAR" = x"63" \
&& test x"$CONFIG_LAST_SUPPORTED_WCHAR" = x"767" \
&& testing "ls unicode test" \
&& testing "ls unicode test with codepoints limited to 767" \
"(cd ls.testdir && sh ../ls.mk_uni_tests) && ls -1 ls.testdir" \
'0001_1__Some_correct_UTF-8_text___________________________________________|
0002_2__Boundary_condition_test_cases_____________________________________|
@ -132,6 +132,125 @@ test x"$CONFIG_FEATURE_ASSUME_UNICODE" = x"y" \
0110_5.3.2__U+FFFF_=_ef_bf_bf_=_"?"_______________________________________|
' "" ""
# Currently fails on "0080_4.2.2__U-000007FF_=_e0_9f_bf" line
test x"$CONFIG_FEATURE_ASSUME_UNICODE" = x"y" \
&& test x"$CONFIG_LOCALE_SUPPORT" != x"y" \
&& test x"$CONFIG_SUBST_WCHAR" = x"63" \
&& test x"$CONFIG_LAST_SUPPORTED_WCHAR" = x"0" \
&& testing "ls unicode test with unlimited codepoints" \
"(cd ls.testdir && sh ../ls.mk_uni_tests) && ls -1 ls.testdir" \
'0001_1__Some_correct_UTF-8_text___________________________________________|
0002_2__Boundary_condition_test_cases_____________________________________|
0003_2.1__First_possible_sequence_of_a_certain_length_____________________|
0004_2.1.2__2_bytes__U-00000080_:________"?"______________________________|
0005_2.1.3__3_bytes__U-00000800_:________"ࠀ"______________________________|
0006_2.1.4__4_bytes__U-00010000_:________"?"______________________________|
0007_2.1.5__5_bytes__U-00200000_:________"?"______________________________|
0008_2.1.6__6_bytes__U-04000000_:________"?"______________________________|
0009_2.2__Last_possible_sequence_of_a_certain_length______________________|
0010_2.2.1__1_byte___U-0000007F_:________"?"______________________________|
0011_2.2.2__2_bytes__U-000007FF_:________"߿"______________________________|
0012_2.2.3__3_bytes__U-0000FFFF_:________"?"______________________________|
0013_2.2.4__4_bytes__U-001FFFFF_:________"?"______________________________|
0014_2.2.5__5_bytes__U-03FFFFFF_:________"?"______________________________|
0015_2.2.6__6_bytes__U-7FFFFFFF_:________"?"______________________________|
0016_2.3__Other_boundary_conditions_______________________________________|
0017_2.3.1__U-0000D7FF_=_ed_9f_bf_=_"?"___________________________________|
0018_2.3.2__U-0000E000_=_ee_80_80_=_"?"___________________________________|
0019_2.3.3__U-0000FFFD_=_ef_bf_bd_=_"?"___________________________________|
0020_2.3.4__U-0010FFFF_=_f4_8f_bf_bf_=_"?"________________________________|
0021_2.3.5__U-00110000_=_f4_90_80_80_=_"?"________________________________|
0022_3__Malformed_sequences_______________________________________________|
0023_3.1__Unexpected_continuation_bytes___________________________________|
0024_3.1.1__First_continuation_byte_0x80:_"?"_____________________________|
0025_3.1.2__Last__continuation_byte_0xbf:_"?"_____________________________|
0026_3.1.3__2_continuation_bytes:_"??"____________________________________|
0027_3.1.4__3_continuation_bytes:_"???"___________________________________|
0028_3.1.5__4_continuation_bytes:_"????"__________________________________|
0029_3.1.6__5_continuation_bytes:_"?????"_________________________________|
0030_3.1.7__6_continuation_bytes:_"??????"________________________________|
0031_3.1.8__7_continuation_bytes:_"???????"_______________________________|
0032_3.1.9__Sequence_of_all_64_possible_continuation_bytes__0x80-0xbf_:___|
0033____"????????????????_________________________________________________|
0034_____????????????????_________________________________________________|
0035_____????????????????_________________________________________________|
0036_____????????????????"________________________________________________|
0037_3.2__Lonely_start_characters_________________________________________|
0038_3.2.1__All_32_first_bytes_of_2-byte_sequences__0xc0-0xdf_,___________|
0039________each_followed_by_a_space_character:___________________________|
0040____"?_?_?_?_?_?_?_?_?_?_?_?_?_?_?_?__________________________________|
0041_____?_?_?_?_?_?_?_?_?_?_?_?_?_?_?_?_"________________________________|
0042_3.2.2__All_16_first_bytes_of_3-byte_sequences__0xe0-0xef_,___________|
0043________each_followed_by_a_space_character:___________________________|
0044____"?_?_?_?_?_?_?_?_?_?_?_?_?_?_?_?_"________________________________|
0045_3.2.3__All_8_first_bytes_of_4-byte_sequences__0xf0-0xf7_,____________|
0046________each_followed_by_a_space_character:___________________________|
0047____"?_?_?_?_?_?_?_?_"________________________________________________|
0048_3.2.4__All_4_first_bytes_of_5-byte_sequences__0xf8-0xfb_,____________|
0049________each_followed_by_a_space_character:___________________________|
0050____"?_?_?_?_"________________________________________________________|
0051_3.2.5__All_2_first_bytes_of_6-byte_sequences__0xfc-0xfd_,____________|
0052________each_followed_by_a_space_character:___________________________|
0053____"?_?_"____________________________________________________________|
0054_3.3__Sequences_with_last_continuation_byte_missing___________________|
0055_3.3.1__2-byte_sequence_with_last_byte_missing__U+0000_:_____"?"______|
0056_3.3.2__3-byte_sequence_with_last_byte_missing__U+0000_:_____"?"______|
0057_3.3.3__4-byte_sequence_with_last_byte_missing__U+0000_:_____"?"______|
0058_3.3.4__5-byte_sequence_with_last_byte_missing__U+0000_:_____"?"______|
0059_3.3.5__6-byte_sequence_with_last_byte_missing__U+0000_:_____"?"______|
0060_3.3.6__2-byte_sequence_with_last_byte_missing__U-000007FF_:_"?"______|
0061_3.3.7__3-byte_sequence_with_last_byte_missing__U-0000FFFF_:_"?"______|
0062_3.3.8__4-byte_sequence_with_last_byte_missing__U-001FFFFF_:_"?"______|
0063_3.3.9__5-byte_sequence_with_last_byte_missing__U-03FFFFFF_:_"?"______|
0064_3.3.10_6-byte_sequence_with_last_byte_missing__U-7FFFFFFF_:_"?"______|
0065_3.4__Concatenation_of_incomplete_sequences___________________________|
0066____"??????????"______________________________________________________|
0067_3.5__Impossible_bytes________________________________________________|
0068_3.5.1__fe_=_"?"______________________________________________________|
0069_3.5.2__ff_=_"?"______________________________________________________|
0070_3.5.3__fe_fe_ff_ff_=_"????"__________________________________________|
0071_4__Overlong_sequences________________________________________________|
0072_4.1__Examples_of_an_overlong_ASCII_character_________________________|
0073_4.1.1_U+002F_=_c0_af_____________=_"?"_______________________________|
0074_4.1.2_U+002F_=_e0_80_af__________=_"?"_______________________________|
0075_4.1.3_U+002F_=_f0_80_80_af_______=_"?"_______________________________|
0076_4.1.4_U+002F_=_f8_80_80_80_af____=_"?"_______________________________|
0077_4.1.5_U+002F_=_fc_80_80_80_80_af_=_"?"_______________________________|
0078_4.2__Maximum_overlong_sequences______________________________________|
0079_4.2.1__U-0000007F_=_c1_bf_____________=_"?"__________________________|
0080_4.2.2__U-000007FF_=_e0_9f_bf__________=_"?"__________________________|
0081_4.2.3__U-0000FFFF_=_f0_8f_bf_bf_______=_"?"__________________________|
0082_4.2.4__U-001FFFFF_=_f8_87_bf_bf_bf____=_"?"__________________________|
0083_4.2.5__U-03FFFFFF_=_fc_83_bf_bf_bf_bf_=_"?"__________________________|
0084_4.3__Overlong_representation_of_the_NUL_character____________________|
0085_4.3.1__U+0000_=_c0_80_____________=_"?"______________________________|
0086_4.3.2__U+0000_=_e0_80_80__________=_"?"______________________________|
0087_4.3.3__U+0000_=_f0_80_80_80_______=_"?"______________________________|
0088_4.3.4__U+0000_=_f8_80_80_80_80____=_"?"______________________________|
0089_4.3.5__U+0000_=_fc_80_80_80_80_80_=_"?"______________________________|
0090_5__Illegal_code_positions____________________________________________|
0091_5.1_Single_UTF-16_surrogates_________________________________________|
0092_5.1.1__U+D800_=_ed_a0_80_=_"?"_______________________________________|
0093_5.1.2__U+DB7F_=_ed_ad_bf_=_"?"_______________________________________|
0094_5.1.3__U+DB80_=_ed_ae_80_=_"?"_______________________________________|
0095_5.1.4__U+DBFF_=_ed_af_bf_=_"?"_______________________________________|
0096_5.1.5__U+DC00_=_ed_b0_80_=_"?"_______________________________________|
0097_5.1.6__U+DF80_=_ed_be_80_=_"?"_______________________________________|
0098_5.1.7__U+DFFF_=_ed_bf_bf_=_"?"_______________________________________|
0099_5.2_Paired_UTF-16_surrogates_________________________________________|
0100_5.2.1__U+D800_U+DC00_=_ed_a0_80_ed_b0_80_=_"??"______________________|
0101_5.2.2__U+D800_U+DFFF_=_ed_a0_80_ed_bf_bf_=_"??"______________________|
0102_5.2.3__U+DB7F_U+DC00_=_ed_ad_bf_ed_b0_80_=_"??"______________________|
0103_5.2.4__U+DB7F_U+DFFF_=_ed_ad_bf_ed_bf_bf_=_"??"______________________|
0104_5.2.5__U+DB80_U+DC00_=_ed_ae_80_ed_b0_80_=_"??"______________________|
0105_5.2.6__U+DB80_U+DFFF_=_ed_ae_80_ed_bf_bf_=_"??"______________________|
0106_5.2.7__U+DBFF_U+DC00_=_ed_af_bf_ed_b0_80_=_"??"______________________|
0107_5.2.8__U+DBFF_U+DFFF_=_ed_af_bf_ed_bf_bf_=_"??"______________________|
0108_5.3_Other_illegal_code_positions_____________________________________|
0109_5.3.1__U+FFFE_=_ef_bf_be_=_"?"_______________________________________|
0110_5.3.2__U+FFFF_=_ef_bf_bf_=_"?"_______________________________________|
' "" ""
# Clean up
rm -rf ls.testdir 2>/dev/null