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libbb: better unicode width support. Hopefully fixes bug 839. 

Also opens up a possibility to make other unicode stuff smaller
and more correct later. but:

function                                             old     new   delta
static.combining                                       -     516    +516
bb_wcwidth                                             -     328    +328
unicode_cut_nchars                                     -     141    +141
mbstowc_internal                                       -      93     +93
in_table                                               -      78     +78
cal_main                                             899     961     +62
static.combining0x10000                                -      40     +40
unicode_strlen                                         -      31     +31
bb_mbstrlen                                           31       -     -31
bb_mbstowcs                                          173     102     -71
------------------------------------------------------------------------------
(add/remove: 7/1 grow/shrink: 1/1 up/down: 1289/-102)        Total: 1187 bytes

Uses code of Markus Kuhn, which is in public domain:
http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
"Permission to use, copy, modify, and distribute this software
 for any purpose and without fee is hereby granted. The author
 disclaims all warranties with regard to this software."

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-01-24 07:44:03 +01:00
parent 5da9f96ad8
commit 9f93d62192
10 changed files with 410 additions and 98 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
coreutils/cal.c
View File

@ -16,8 +16,8 @@
*
* Major size reduction... over 50% (>1.5k) on i386.
*/
#include "libbb.h"
#include "unicode.h"
/* We often use "unsigned" intead of "int", it's easier to div on most CPUs */
@ -83,9 +83,16 @@ int cal_main(int argc UNUSED_PARAM, char **argv)
time_t now;
unsigned month, year, flags, i;
char *month_names[12];
char day_headings[28]; /* 28 for julian, 21 for nonjulian */
/* normal heading: */
/* "Su Mo Tu We Th Fr Sa" */
/* -j heading: */
/* " Su Mo Tu We Th Fr Sa" */
char day_headings[ENABLE_FEATURE_ASSUME_UNICODE ? 28 * 6 : 28];
IF_FEATURE_ASSUME_UNICODE(char *hp = day_headings;)
char buf[40];
init_unicode();
flags = getopt32(argv, "jy");
/* This sets julian = flags & 1: */
option_mask32 &= 1;
@ -122,15 +129,24 @@ int cal_main(int argc UNUSED_PARAM, char **argv)
if (i < 7) {
zero_tm.tm_wday = i;
//FIXME: unicode
//Bug 839:
//testcase with doublewidth Japanese chars: "LANG=zh_TW.utf8 cal"
//perhaps use wc[s]width() to probe terminal width
/* abbreviated weekday name according to locale */
strftime(buf, sizeof(buf), "%a", &zero_tm);
#if ENABLE_FEATURE_ASSUME_UNICODE
if (julian)
*hp++ = ' ';
{
char *two_wchars = unicode_cut_nchars(2, buf);
strcpy(hp, two_wchars);
free(two_wchars);
}
hp += strlen(hp);
*hp++ = ' ';
#else
strncpy(day_headings + i * (3+julian) + julian, buf, 2);
#endif
}
} while (++i < 12);
IF_FEATURE_ASSUME_UNICODE(hp[-1] = '\0';)
if (month) {
unsigned row, len, days[MAXDAYS];

2
coreutils/df.c
View File

@ -178,7 +178,7 @@ int df_main(int argc UNUSED_PARAM, char **argv)
#endif
#if ENABLE_FEATURE_ASSUME_UNICODE
dev_len = bb_mbstrlen(device);
dev_len = unicode_strlen(device);
if (dev_len > 20) {
printf("%s\n%20s", device, "");
} else {

4
coreutils/expand.c
View File

@ -49,7 +49,7 @@ static void expand(FILE *file, unsigned tab_size, unsigned opt)
unsigned len;
*ptr = '\0';
# if ENABLE_FEATURE_ASSUME_UNICODE
len = bb_mbstrlen(ptr_strbeg);
len = unicode_strlen(ptr_strbeg);
# else
len = ptr - ptr_strbeg;
# endif
@ -105,7 +105,7 @@ static void unexpand(FILE *file, unsigned tab_size, unsigned opt)
char c;
c = ptr[n];
ptr[n] = '\0';
len = bb_mbstrlen(ptr);
len = unicode_strlen(ptr);
ptr[n] = c;
}
# else

6
coreutils/ls.c
View File

@ -550,7 +550,7 @@ static void showfiles(struct dnode **dn, unsigned nfiles)
} else {
/* find the longest file name, use that as the column width */
for (i = 0; dn[i]; i++) {
int len = bb_mbstrlen(dn[i]->name);
int len = unicode_strlen(dn[i]->name);
if (column_width < len)
column_width = len;
}
@ -742,7 +742,7 @@ static int print_name(const char *name)
{
if (option_mask32 & OPT_Q) {
#if ENABLE_FEATURE_ASSUME_UNICODE
unsigned len = 2 + bb_mbstrlen(name);
unsigned len = 2 + unicode_strlen(name);
#else
unsigned len = 2;
#endif
@ -762,7 +762,7 @@ static int print_name(const char *name)
/* No -Q: */
#if ENABLE_FEATURE_ASSUME_UNICODE
fputs(name, stdout);
return bb_mbstrlen(name);
return unicode_strlen(name);
#else
return printf("%s", name);
#endif

31
include/unicode.h
View File

@ -13,13 +13,16 @@ enum {
#if !ENABLE_FEATURE_ASSUME_UNICODE
# define bb_mbstrlen(string) strlen(string)
# define unicode_strlen(string) strlen(string)
# define unicode_scrlen(string) TODO
# define unicode_status UNICODE_OFF
# define init_unicode() ((void)0)
#else
size_t bb_mbstrlen(const char *string) FAST_FUNC;
size_t FAST_FUNC unicode_strlen(const char *string);
char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src);
unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src);
# if ENABLE_LOCALE_SUPPORT
@ -30,7 +33,7 @@ void init_unicode(void) FAST_FUNC;
# else
/* Crude "locale support" which knows only C and Unicode locales */
/* Homegrown Unicode support. It knows only C and Unicode locales. */
# if !ENABLE_FEATURE_CHECK_UNICODE_IN_ENV
# define unicode_status UNICODE_ON
@ -52,6 +55,7 @@ void init_unicode(void) FAST_FUNC;
# define iswspace bb_iswspace
# define iswalnum bb_iswalnum
# define iswpunct bb_iswpunct
# define wcwidth bb_wcwidth
typedef int32_t wint_t;
typedef struct {
@ -68,27 +72,6 @@ int iswpunct(wint_t wc) FAST_FUNC;
# endif /* !LOCALE_SUPPORT */
# if 0 /* TODO: better support for printfing Unicode fields: */
/* equivalent to printf("%-20.20s", str) */
char unicode_buffer[20 * MB_CUR_MAX];
printf("%s", unicode_exact(20, str, unicode_buffer);
/* no need to free() anything */
/* equivalent to printf("%-20s", str) */
char *malloced = unicode_minimum(20, str);
printf("%s", malloced);
free(malloced); /* ugh */
/* equivalent to printf("%-20s", str), better one */
printf("%s%*s", str, unicode_pad_to_width(str, 20), "");
/* equivalent to printf("%20s", str) */
printf("%*s%s", unicode_pad_to_width(str, 20), "", str);
# endif
#endif /* FEATURE_ASSUME_UNICODE */
#endif

4
libbb/lineedit.c
View File

@ -878,7 +878,7 @@ static void showfiles(void)
/* find the longest file name - use that as the column width */
for (row = 0; row < nrows; row++) {
l = bb_mbstrlen(matches[row]);
l = unicode_strlen(matches[row]);
if (column_width < l)
column_width = l;
}
@ -898,7 +898,7 @@ static void showfiles(void)
for (nc = 1; nc < ncols && n+nrows < nfiles; n += nrows, nc++) {
printf("%s%-*s", matches[n],
(int)(column_width - bb_mbstrlen(matches[n])), ""
(int)(column_width - unicode_strlen(matches[n])), ""
);
}
puts(matches[n]);

210
libbb/unicode.c
View File

@ -9,22 +9,19 @@
#include "libbb.h"
#include "unicode.h"
/* If it's not a constant... */
/* If it's not #defined as a constant in unicode.h... */
#ifndef unicode_status
uint8_t unicode_status;
#endif
size_t FAST_FUNC bb_mbstrlen(const char *string)
{
size_t width = mbstowcs(NULL, string, INT_MAX);
if (width == (size_t)-1L)
return strlen(string);
return width;
}
/* This file is compiled only if FEATURE_ASSUME_UNICODE is on.
* We check other options and decide whether to use libc support
* via locale, or use our own logic:
*/
#if ENABLE_LOCALE_SUPPORT
/* Unicode support using libc */
/* Unicode support using libc locale support. */
void FAST_FUNC init_unicode(void)
{
@ -34,12 +31,12 @@ void FAST_FUNC init_unicode(void)
if (unicode_status != UNICODE_UNKNOWN)
return;
unicode_status = bb_mbstrlen(unicode_0x394) == 1 ? UNICODE_ON : UNICODE_OFF;
unicode_status = unicode_strlen(unicode_0x394) == 1 ? UNICODE_ON : UNICODE_OFF;
}
#else
/* Crude "locale support" which knows only C and Unicode locales */
/* Homegrown Unicode support. It knows only C and Unicode locales. */
# if ENABLE_FEATURE_CHECK_UNICODE_IN_ENV
void FAST_FUNC init_unicode(void)
@ -93,7 +90,6 @@ static size_t wcrtomb_internal(char *s, wchar_t wc)
s[0] = wc | (uint8_t)(0x3f00 >> n);
return n;
}
size_t FAST_FUNC wcrtomb(char *s, wchar_t wc, mbstate_t *ps UNUSED_PARAM)
{
if (unicode_status != UNICODE_ON) {
@ -103,7 +99,6 @@ size_t FAST_FUNC wcrtomb(char *s, wchar_t wc, mbstate_t *ps UNUSED_PARAM)
return wcrtomb_internal(s, wc);
}
size_t FAST_FUNC wcstombs(char *dest, const wchar_t *src, size_t n)
{
size_t org_n = n;
@ -144,6 +139,51 @@ size_t FAST_FUNC wcstombs(char *dest, const wchar_t *src, size_t n)
return org_n - n;
}
static const char *mbstowc_internal(wchar_t *res, const char *src)
{
int bytes;
unsigned c = (unsigned char) *src++;
if (c <= 0x7f) {
*res = c;
return src;
}
/* 80-7FF -> 110yyyxx 10xxxxxx */
/* 800-FFFF -> 1110yyyy 10yyyyxx 10xxxxxx */
/* 10000-1FFFFF -> 11110zzz 10zzyyyy 10yyyyxx 10xxxxxx */
/* 200000-3FFFFFF -> 111110tt 10zzzzzz 10zzyyyy 10yyyyxx 10xxxxxx */
/* 4000000-FFFFFFFF -> 111111tt 10tttttt 10zzzzzz 10zzyyyy 10yyyyxx 10xxxxxx */
bytes = 0;
do {
c <<= 1;
bytes++;
} while ((c & 0x80) && bytes < 6);
if (bytes == 1)
return NULL;
c = (uint8_t)(c) >> bytes;
while (--bytes) {
unsigned ch = (unsigned char) *src++;
if ((ch & 0xc0) != 0x80) {
return NULL;
}
c = (c << 6) + (ch & 0x3f);
}
/* TODO */
/* Need to check that c isn't produced by overlong encoding */
/* Example: 11000000 10000000 converts to NUL */
/* 11110000 10000000 10000100 10000000 converts to 0x100 */
/* correct encoding: 11000100 10000000 */
if (c <= 0x7f) { /* crude check */
return NULL;
//or maybe 0xfffd; /* replacement character */
}
*res = c;
return src;
}
size_t FAST_FUNC mbstowcs(wchar_t *dest, const char *src, size_t n)
{
size_t org_n = n;
@ -162,58 +202,20 @@ size_t FAST_FUNC mbstowcs(wchar_t *dest, const char *src, size_t n)
}
while (n) {
int bytes;
unsigned c = (unsigned char) *src++;
if (c <= 0x7f) {
if (dest)
*dest++ = c;
if (c == '\0')
break;
n--;
continue;
}
/* 80-7FF -> 110yyyxx 10xxxxxx */
/* 800-FFFF -> 1110yyyy 10yyyyxx 10xxxxxx */
/* 10000-1FFFFF -> 11110zzz 10zzyyyy 10yyyyxx 10xxxxxx */
/* 200000-3FFFFFF -> 111110tt 10zzzzzz 10zzyyyy 10yyyyxx 10xxxxxx */
/* 4000000-FFFFFFFF -> 111111tt 10tttttt 10zzzzzz 10zzyyyy 10yyyyxx 10xxxxxx */
bytes = 0;
do {
c <<= 1;
bytes++;
} while ((c & 0x80) && bytes < 6);
if (bytes == 1)
wchar_t wc;
const char *rc = mbstowc_internal(dest ? dest : &wc, src);
if (rc == NULL) /* error */
return (size_t) -1L;
c = (uint8_t)(c) >> bytes;
while (--bytes) {
unsigned ch = (unsigned char) *src++;
if ((ch & 0xc0) != 0x80) {
return (size_t) -1L;
}
c = (c << 6) + (ch & 0x3f);
}
/* TODO */
/* Need to check that c isn't produced by overlong encoding */
/* Example: 11000000 10000000 converts to NUL */
/* 11110000 10000000 10000100 10000000 converts to 0x100 */
/* correct encoding: 11000100 10000000 */
if (c <= 0x7f) { /* crude check */
return (size_t) -1L;
//or maybe: c = 0xfffd; /* replacement character */
}
if (dest)
*dest++ = c;
dest++;
n--;
}
return org_n - n;
}
#include "unicode_wcwidth.c"
int FAST_FUNC iswspace(wint_t wc)
{
return (unsigned)wc <= 0x7f && isspace(wc);
@ -229,4 +231,98 @@ int FAST_FUNC iswpunct(wint_t wc)
return (unsigned)wc <= 0x7f && ispunct(wc);
}
#endif /* Homegrown Unicode support */
/* The rest is mostly same for libc and for "homegrown" support */
size_t FAST_FUNC unicode_strlen(const char *string)
{
size_t width = mbstowcs(NULL, string, INT_MAX);
if (width == (size_t)-1L)
return strlen(string);
return width;
}
char* FAST_FUNC unicode_cut_nchars(unsigned width, const char *src)
{
char *dst;
unsigned dst_len;
if (unicode_status != UNICODE_ON)
return xasprintf("%-*.*s", width, width, src);
dst = NULL;
dst_len = 0;
while (1) {
int w;
wchar_t wc;
dst = xrealloc(dst, dst_len + 2 * MB_CUR_MAX);
#if ENABLE_LOCALE_SUPPORT
{
mbstate_t mbst = { 0 };
ssize_t rc = mbsrtowcs(&wc, &src, 1, &mbst);
if (rc <= 0) /* error, or end-of-string */
break;
}
#else
src = mbstowc_internal(&wc, src);
if (!src || wc == 0) /* error, or end-of-string */
break;
#endif
w = wcwidth(wc);
if (w < 0) /* non-printable wchar */
break;
width -= w;
if ((int)width < 0) { /* string is longer than width */
width += w;
while (width) {
dst[dst_len++] = ' ';
width--;
}
break;
}
#if ENABLE_LOCALE_SUPPORT
{
mbstate_t mbst = { 0 };
dst_len += wcrtomb(&dst[dst_len], wc, &mbst);
}
#else
dst_len += wcrtomb_internal(&dst[dst_len], wc);
#endif
}
dst[dst_len] = '\0';
return dst;
}
unsigned FAST_FUNC unicode_padding_to_width(unsigned width, const char *src)
{
if (unicode_status != UNICODE_ON) {
return width - strnlen(src, width);
}
while (1) {
int w;
wchar_t wc;
#if ENABLE_LOCALE_SUPPORT
{
mbstate_t mbst = { 0 };
ssize_t rc = mbsrtowcs(&wc, &src, 1, &mbst);
if (rc <= 0) /* error, or end-of-string */
return width;
}
#else
src = mbstowc_internal(&wc, src);
if (!src || wc == 0) /* error, or end-of-string */
return width;
#endif
w = wcwidth(wc);
if (w < 0) /* non-printable wchar */
return width;
width -= w;
if ((int)width <= 0) /* string is longer than width */
return 0;
}
}

217
libbb/unicode_wcwidth.c Normal file
View File

@ -0,0 +1,217 @@
/*
* This is an implementation of wcwidth() and wcswidth() (defined in
* IEEE Std 1002.1-2001) for Unicode.
*
* http://www.opengroup.org/onlinepubs/007904975/functions/wcwidth.html
* http://www.opengroup.org/onlinepubs/007904975/functions/wcswidth.html
*
* In fixed-width output devices, Latin characters all occupy a single
* "cell" position of equal width, whereas ideographic CJK characters
* occupy two such cells. Interoperability between terminal-line
* applications and (teletype-style) character terminals using the
* UTF-8 encoding requires agreement on which character should advance
* the cursor by how many cell positions. No established formal
* standards exist at present on which Unicode character shall occupy
* how many cell positions on character terminals. These routines are
* a first attempt of defining such behavior based on simple rules
* applied to data provided by the Unicode Consortium.
*
* For some graphical characters, the Unicode standard explicitly
* defines a character-cell width via the definition of the East Asian
* FullWidth (F), Wide (W), Half-width (H), and Narrow (Na) classes.
* In all these cases, there is no ambiguity about which width a
* terminal shall use. For characters in the East Asian Ambiguous (A)
* class, the width choice depends purely on a preference of backward
* compatibility with either historic CJK or Western practice.
* Choosing single-width for these characters is easy to justify as
* the appropriate long-term solution, as the CJK practice of
* displaying these characters as double-width comes from historic
* implementation simplicity (8-bit encoded characters were displayed
* single-width and 16-bit ones double-width, even for Greek,
* Cyrillic, etc.) and not any typographic considerations.
*
* Much less clear is the choice of width for the Not East Asian
* (Neutral) class. Existing practice does not dictate a width for any
* of these characters. It would nevertheless make sense
* typographically to allocate two character cells to characters such
* as for instance EM SPACE or VOLUME INTEGRAL, which cannot be
* represented adequately with a single-width glyph. The following
* routines at present merely assign a single-cell width to all
* neutral characters, in the interest of simplicity. This is not
* entirely satisfactory and should be reconsidered before
* establishing a formal standard in this area. At the moment, the
* decision which Not East Asian (Neutral) characters should be
* represented by double-width glyphs cannot yet be answered by
* applying a simple rule from the Unicode database content. Setting
* up a proper standard for the behavior of UTF-8 character terminals
* will require a careful analysis not only of each Unicode character,
* but also of each presentation form, something the author of these
* routines has avoided to do so far.
*
* http://www.unicode.org/unicode/reports/tr11/
*
* Markus Kuhn -- 2007-05-26 (Unicode 5.0)
*
* Permission to use, copy, modify, and distribute this software
* for any purpose and without fee is hereby granted. The author
* disclaims all warranties with regard to this software.
*
* Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
*/
struct interval {
uint16_t first;
uint16_t last;
};
/* auxiliary function for binary search in interval table */
static int in_table(unsigned ucs, const struct interval *table, unsigned max)
{
unsigned min = 0;
unsigned mid;
if (ucs < table[0].first || ucs > table[max].last)
return 0;
while (max >= min) {
mid = (min + max) / 2;
if (ucs > table[mid].last)
min = mid + 1;
else if (ucs < table[mid].first)
max = mid - 1;
else
return 1;
}
return 0;
}
/* The following two functions define the column width of an ISO 10646
* character as follows:
*
* - The null character (U+0000) has a column width of 0.
*
* - Other C0/C1 control characters and DEL will lead to a return
* value of -1.
*
* - Non-spacing and enclosing combining characters (general
* category code Mn or Me in the Unicode database) have a
* column width of 0.
*
* - SOFT HYPHEN (U+00AD) has a column width of 1.
*
* - Other format characters (general category code Cf in the Unicode
* database) and ZERO WIDTH SPACE (U+200B) have a column width of 0.
*
* - Hangul Jamo medial vowels and final consonants (U+1160-U+11FF)
* have a column width of 0.
*
* - Spacing characters in the East Asian Wide (W) or East Asian
* Full-width (F) category as defined in Unicode Technical
* Report #11 have a column width of 2.
*
* - All remaining characters (including all printable
* ISO 8859-1 and WGL4 characters, Unicode control characters,
* etc.) have a column width of 1.
*
* This implementation assumes that wchar_t characters are encoded
* in ISO 10646.
*/
static int wcwidth(unsigned ucs)
{
/* sorted list of non-overlapping intervals of non-spacing characters */
/* generated by "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c" */
static const struct interval combining[] = {
{ 0x0300, 0x036F }, { 0x0483, 0x0486 }, { 0x0488, 0x0489 },
{ 0x0591, 0x05BD }, { 0x05BF, 0x05BF }, { 0x05C1, 0x05C2 },
{ 0x05C4, 0x05C5 }, { 0x05C7, 0x05C7 }, { 0x0600, 0x0603 },
{ 0x0610, 0x0615 }, { 0x064B, 0x065E }, { 0x0670, 0x0670 },
{ 0x06D6, 0x06E4 }, { 0x06E7, 0x06E8 }, { 0x06EA, 0x06ED },
{ 0x070F, 0x070F }, { 0x0711, 0x0711 }, { 0x0730, 0x074A },
{ 0x07A6, 0x07B0 }, { 0x07EB, 0x07F3 }, { 0x0901, 0x0902 },
{ 0x093C, 0x093C }, { 0x0941, 0x0948 }, { 0x094D, 0x094D },
{ 0x0951, 0x0954 }, { 0x0962, 0x0963 }, { 0x0981, 0x0981 },
{ 0x09BC, 0x09BC }, { 0x09C1, 0x09C4 }, { 0x09CD, 0x09CD },
{ 0x09E2, 0x09E3 }, { 0x0A01, 0x0A02 }, { 0x0A3C, 0x0A3C },
{ 0x0A41, 0x0A42 }, { 0x0A47, 0x0A48 }, { 0x0A4B, 0x0A4D },
{ 0x0A70, 0x0A71 }, { 0x0A81, 0x0A82 }, { 0x0ABC, 0x0ABC },
{ 0x0AC1, 0x0AC5 }, { 0x0AC7, 0x0AC8 }, { 0x0ACD, 0x0ACD },
{ 0x0AE2, 0x0AE3 }, { 0x0B01, 0x0B01 }, { 0x0B3C, 0x0B3C },
{ 0x0B3F, 0x0B3F }, { 0x0B41, 0x0B43 }, { 0x0B4D, 0x0B4D },
{ 0x0B56, 0x0B56 }, { 0x0B82, 0x0B82 }, { 0x0BC0, 0x0BC0 },
{ 0x0BCD, 0x0BCD }, { 0x0C3E, 0x0C40 }, { 0x0C46, 0x0C48 },
{ 0x0C4A, 0x0C4D }, { 0x0C55, 0x0C56 }, { 0x0CBC, 0x0CBC },
{ 0x0CBF, 0x0CBF }, { 0x0CC6, 0x0CC6 }, { 0x0CCC, 0x0CCD },
{ 0x0CE2, 0x0CE3 }, { 0x0D41, 0x0D43 }, { 0x0D4D, 0x0D4D },
{ 0x0DCA, 0x0DCA }, { 0x0DD2, 0x0DD4 }, { 0x0DD6, 0x0DD6 },
{ 0x0E31, 0x0E31 }, { 0x0E34, 0x0E3A }, { 0x0E47, 0x0E4E },
{ 0x0EB1, 0x0EB1 }, { 0x0EB4, 0x0EB9 }, { 0x0EBB, 0x0EBC },
{ 0x0EC8, 0x0ECD }, { 0x0F18, 0x0F19 }, { 0x0F35, 0x0F35 },
{ 0x0F37, 0x0F37 }, { 0x0F39, 0x0F39 }, { 0x0F71, 0x0F7E },
{ 0x0F80, 0x0F84 }, { 0x0F86, 0x0F87 }, { 0x0F90, 0x0F97 },
{ 0x0F99, 0x0FBC }, { 0x0FC6, 0x0FC6 }, { 0x102D, 0x1030 },
{ 0x1032, 0x1032 }, { 0x1036, 0x1037 }, { 0x1039, 0x1039 },
{ 0x1058, 0x1059 }, { 0x1160, 0x11FF }, { 0x135F, 0x135F },
{ 0x1712, 0x1714 }, { 0x1732, 0x1734 }, { 0x1752, 0x1753 },
{ 0x1772, 0x1773 }, { 0x17B4, 0x17B5 }, { 0x17B7, 0x17BD },
{ 0x17C6, 0x17C6 }, { 0x17C9, 0x17D3 }, { 0x17DD, 0x17DD },
{ 0x180B, 0x180D }, { 0x18A9, 0x18A9 }, { 0x1920, 0x1922 },
{ 0x1927, 0x1928 }, { 0x1932, 0x1932 }, { 0x1939, 0x193B },
{ 0x1A17, 0x1A18 }, { 0x1B00, 0x1B03 }, { 0x1B34, 0x1B34 },
{ 0x1B36, 0x1B3A }, { 0x1B3C, 0x1B3C }, { 0x1B42, 0x1B42 },
{ 0x1B6B, 0x1B73 }, { 0x1DC0, 0x1DCA }, { 0x1DFE, 0x1DFF },
{ 0x200B, 0x200F }, { 0x202A, 0x202E }, { 0x2060, 0x2063 },
{ 0x206A, 0x206F }, { 0x20D0, 0x20EF }, { 0x302A, 0x302F },
{ 0x3099, 0x309A }, { 0xA806, 0xA806 }, { 0xA80B, 0xA80B },
{ 0xA825, 0xA826 }, { 0xFB1E, 0xFB1E }, { 0xFE00, 0xFE0F },
{ 0xFE20, 0xFE23 }, { 0xFEFF, 0xFEFF }, { 0xFFF9, 0xFFFB }
};
static const struct interval combining0x10000[] = {
{ 0x0A01, 0x0A03 }, { 0x0A05, 0x0A06 }, { 0x0A0C, 0x0A0F },
{ 0x0A38, 0x0A3A }, { 0x0A3F, 0x0A3F }, { 0xD167, 0xD169 },
{ 0xD173, 0xD182 }, { 0xD185, 0xD18B }, { 0xD1AA, 0xD1AD },
{ 0xD242, 0xD244 }
};
if (ucs == 0)
return 0;
/* test for 8-bit control characters (00-1f, 80-9f, 7f) */
if ((ucs & ~0x80) < 0x20 || ucs == 0x7f)
return -1;
if (ucs < 0x0300) /* optimization */
return 1;
/* binary search in table of non-spacing characters */
if (in_table(ucs, combining, ARRAY_SIZE(combining) - 1))
return 0;
if (ucs < 0x1100) /* optimization */
return 1;
/* binary search in table of non-spacing characters, cont. */
if (in_table(ucs ^ 0x10000, combining0x10000, ARRAY_SIZE(combining0x10000) - 1))
return 0;
if (ucs == 0xE0001
|| (ucs >= 0xE0020 && ucs <= 0xE007F)
|| (ucs >= 0xE0100 && ucs <= 0xE01EF)
) {
return 0;
}
/* if we arrive here, ucs is not a combining or C0/C1 control character */
return 1 +
( (/*ucs >= 0x1100 &&*/ ucs <= 0x115f) /* Hangul Jamo init. consonants */
|| ucs == 0x2329
|| ucs == 0x232a
|| (ucs >= 0x2e80 && ucs <= 0xa4cf && ucs != 0x303f) /* CJK ... Yi */
|| (ucs >= 0xac00 && ucs <= 0xd7a3) /* Hangul Syllables */
|| (ucs >= 0xf900 && ucs <= 0xfaff) /* CJK Compatibility Ideographs */
|| (ucs >= 0xfe10 && ucs <= 0xfe19) /* Vertical forms */
|| (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)
);
}

4
modutils/lsmod.c
View File

@ -64,7 +64,7 @@ int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
} else
token[3] = (char *) "";
# if ENABLE_FEATURE_ASSUME_UNICODE
name_len = bb_mbstrlen(token[0]);
name_len = unicode_strlen(token[0]);
name_len = (name_len > 19) ? 0 : 19 - name_len;
printf("%s%*s %8s %2s %s\n", token[0], name_len, "", token[1], token[2], token[3]);
# else
@ -78,7 +78,7 @@ int lsmod_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
// so trimming the trailing char is just what we need!
token[3][strlen(token[3])-1] = '\0';
# if ENABLE_FEATURE_ASSUME_UNICODE
name_len = bb_mbstrlen(token[0]);
name_len = unicode_strlen(token[0]);
name_len = (name_len > 19) ? 0 : 19 - name_len;
printf("%s%*s %8s %2s %s\n", token[0], name_len, "", token[1], token[2], token[3]);
# else

2
networking/udhcp/dumpleases.c
View File

@ -72,7 +72,7 @@ int dumpleases_main(int argc UNUSED_PARAM, char **argv)
/* lease.hostname is char[20] and is always NUL terminated */
#if ENABLE_FEATURE_ASSUME_UNICODE
printf(" %-16s%s%*s", inet_ntoa(addr), lease.hostname,
20 - (int)bb_mbstrlen(lease.hostname), "");
20 - (int)unicode_strlen(lease.hostname), "");
#else
printf(" %-16s%-20s", inet_ntoa(addr), lease.hostname);
#endif