mirror of
https://github.com/sheumann/hush.git
synced 2024-12-30 05:29:47 +00:00
lineedit: first shot at optional unicode bidi input support
function old new delta read_line_input 4886 5003 +117 in_uint16_table - 97 +97 in_interval_table - 78 +78 static.rtl_b - 68 +68 unicode_isrtl - 55 +55 isrtl_str - 51 +51 static.rtl_p - 42 +42 unicode_conv_to_printable2 633 477 -156 ------------------------------------------------------------------------------ (add/remove: 6/0 grow/shrink: 1/1 up/down: 508/-156) Total: 352 bytes Signed-off-by: Tomas Heinrich <heinrich.tomas@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Tomas Heinrich
Denys Vlasenko
parent
98f1dc12f1
commit
c5c006c10c
@ -196,6 +196,14 @@ config UNICODE_WIDE_WCHARS
|
||||
With this option off, any Unicode char with width > 1
|
||||
is substituted on output.
|
||||
|
||||
config UNICODE_BIDI_SUPPORT
|
||||
bool "Bidirectional character-aware line input"
|
||||
default y
|
||||
depends on FEATURE_ASSUME_UNICODE && !LOCALE_SUPPORT
|
||||
help
|
||||
With this option on, right-to-left Unicode characters
|
||||
are treated differently on input (e.g. cursor movement).
|
||||
|
||||
config LONG_OPTS
|
||||
bool "Support for --long-options"
|
||||
default y
|
||||
|
||||
@ -18,6 +18,8 @@ enum {
|
||||
UNICODE_ON = 2,
|
||||
};
|
||||
|
||||
#define unicode_isrtl(wc) 0
|
||||
|
||||
#if !ENABLE_FEATURE_ASSUME_UNICODE
|
||||
|
||||
# define unicode_strlen(string) strlen(string)
|
||||
@ -26,6 +28,17 @@ enum {
|
||||
|
||||
#else
|
||||
|
||||
# if CONFIG_LAST_SUPPORTED_WCHAR < 126 || CONFIG_LAST_SUPPORTED_WCHAR >= 0x30000
|
||||
# define LAST_SUPPORTED_WCHAR 0x2ffff
|
||||
# else
|
||||
# define LAST_SUPPORTED_WCHAR CONFIG_LAST_SUPPORTED_WCHAR
|
||||
# endif
|
||||
|
||||
# if LAST_SUPPORTED_WCHAR < 0x590
|
||||
# undef ENABLE_UNICODE_BIDI_SUPPORT
|
||||
# define ENABLE_UNICODE_BIDI_SUPPORT 0
|
||||
# endif
|
||||
|
||||
size_t FAST_FUNC unicode_strlen(const char *string);
|
||||
enum {
|
||||
UNI_FLAG_PAD = (1 << 0),
|
||||
@ -78,6 +91,10 @@ size_t wcrtomb(char *s, wchar_t wc, mbstate_t *ps) FAST_FUNC;
|
||||
int iswspace(wint_t wc) FAST_FUNC;
|
||||
int iswalnum(wint_t wc) FAST_FUNC;
|
||||
int iswpunct(wint_t wc) FAST_FUNC;
|
||||
# if ENABLE_UNICODE_BIDI_SUPPORT
|
||||
# undef unicode_isrtl
|
||||
int unicode_isrtl(wint_t wc) FAST_FUNC;
|
||||
# endif
|
||||
|
||||
|
||||
# endif /* !LOCALE_SUPPORT */
|
||||
|
||||
@ -1738,6 +1738,18 @@ static int lineedit_read_key(char *read_key_buffer)
|
||||
return ic;
|
||||
}
|
||||
|
||||
#if ENABLE_UNICODE_BIDI_SUPPORT
|
||||
static int isrtl_str(void)
|
||||
{
|
||||
int idx = cursor;
|
||||
while (command_ps[idx] >= ' ' && command_ps[idx] < 127 && !isalpha(command_ps[idx]))
|
||||
idx++;
|
||||
return unicode_isrtl(command_ps[idx]);
|
||||
}
|
||||
#else
|
||||
# define isrtl_str() 0
|
||||
#endif
|
||||
|
||||
/* leave out the "vi-mode"-only case labels if vi editing isn't
|
||||
* configured. */
|
||||
#define vi_case(caselabel) IF_FEATURE_EDITING_VI(case caselabel)
|
||||
@ -1895,10 +1907,9 @@ int FAST_FUNC read_line_input(const char *prompt, char *command, int maxsize, li
|
||||
break;
|
||||
case CTRL('B'):
|
||||
vi_case('h'|VI_CMDMODE_BIT:)
|
||||
vi_case('\b'|VI_CMDMODE_BIT:)
|
||||
vi_case('\b'|VI_CMDMODE_BIT:) /* ^H */
|
||||
vi_case('\x7f'|VI_CMDMODE_BIT:) /* DEL */
|
||||
/* Control-b -- Move back one character */
|
||||
input_backward(1);
|
||||
input_backward(1); /* Move back one character */
|
||||
break;
|
||||
case CTRL('E'):
|
||||
vi_case('$'|VI_CMDMODE_BIT:)
|
||||
@ -1908,13 +1919,20 @@ int FAST_FUNC read_line_input(const char *prompt, char *command, int maxsize, li
|
||||
case CTRL('F'):
|
||||
vi_case('l'|VI_CMDMODE_BIT:)
|
||||
vi_case(' '|VI_CMDMODE_BIT:)
|
||||
/* Control-f -- Move forward one character */
|
||||
input_forward();
|
||||
input_forward(); /* Move forward one character */
|
||||
break;
|
||||
case '\b':
|
||||
case '\b': /* ^H */
|
||||
case '\x7f': /* DEL */
|
||||
/* Control-h and DEL */
|
||||
input_backspace();
|
||||
if (!isrtl_str())
|
||||
input_backspace();
|
||||
else
|
||||
input_delete(0);
|
||||
break;
|
||||
case KEYCODE_DELETE:
|
||||
if (!isrtl_str())
|
||||
input_delete(0);
|
||||
else
|
||||
input_backspace();
|
||||
break;
|
||||
#if ENABLE_FEATURE_TAB_COMPLETION
|
||||
case '\t':
|
||||
@ -2137,9 +2155,6 @@ int FAST_FUNC read_line_input(const char *prompt, char *command, int maxsize, li
|
||||
case KEYCODE_CTRL_RIGHT:
|
||||
ctrl_right();
|
||||
break;
|
||||
case KEYCODE_DELETE:
|
||||
input_delete(0);
|
||||
break;
|
||||
case KEYCODE_HOME:
|
||||
input_backward(cursor);
|
||||
break;
|
||||
@ -2205,14 +2220,19 @@ int FAST_FUNC read_line_input(const char *prompt, char *command, int maxsize, li
|
||||
command_ps[cursor] = ic;
|
||||
command_ps[cursor + 1] = BB_NUL;
|
||||
cmdedit_set_out_char(' ');
|
||||
if (unicode_isrtl(ic))
|
||||
input_backward(1);
|
||||
} else {
|
||||
/* In the middle, insert */
|
||||
/* is char right-to-left, or "neutral" one (e.g. comma) added to rtl text? */
|
||||
int rtl = ENABLE_UNICODE_BIDI_SUPPORT ? (unicode_isrtl(ic) || (ic < 127 && !isalpha(ic) && isrtl_str())) : 0;
|
||||
int sc = cursor;
|
||||
|
||||
memmove(command_ps + sc + 1, command_ps + sc,
|
||||
(command_len - sc) * sizeof(command_ps[0]));
|
||||
command_ps[sc] = ic;
|
||||
sc++;
|
||||
if (!rtl)
|
||||
sc++;
|
||||
/* rewrite from cursor */
|
||||
input_end();
|
||||
/* to prev x pos + 1 */
|
||||
|
||||
132
libbb/unicode.c
132
libbb/unicode.c
@ -241,6 +241,138 @@ int FAST_FUNC iswpunct(wint_t wc)
|
||||
|
||||
#include "unicode_wcwidth.c"
|
||||
|
||||
# if ENABLE_UNICODE_BIDI_SUPPORT
|
||||
int FAST_FUNC unicode_isrtl(wint_t wc)
|
||||
{
|
||||
/* ranges taken from
|
||||
* http://www.unicode.org/Public/5.2.0/ucd/extracted/DerivedBidiClass.txt
|
||||
* Bidi_Class=Left_To_Right | Bidi_Class=Arabic_Letter
|
||||
*/
|
||||
static const struct interval rtl_b[] = {
|
||||
# define BIG_(a,b) { a, b },
|
||||
# define PAIR(a,b)
|
||||
PAIR(0x0590, 0x0590)
|
||||
PAIR(0x05BE, 0x05BE)
|
||||
PAIR(0x05C0, 0x05C0)
|
||||
PAIR(0x05C3, 0x05C3)
|
||||
PAIR(0x05C6, 0x05C6)
|
||||
BIG_(0x05C8, 0x05FF)
|
||||
PAIR(0x0604, 0x0605)
|
||||
PAIR(0x0608, 0x0608)
|
||||
PAIR(0x060B, 0x060B)
|
||||
PAIR(0x060D, 0x060D)
|
||||
BIG_(0x061B, 0x064A)
|
||||
PAIR(0x065F, 0x065F)
|
||||
PAIR(0x066D, 0x066F)
|
||||
BIG_(0x0671, 0x06D5)
|
||||
PAIR(0x06E5, 0x06E6)
|
||||
PAIR(0x06EE, 0x06EF)
|
||||
BIG_(0x06FA, 0x070E)
|
||||
PAIR(0x0710, 0x0710)
|
||||
BIG_(0x0712, 0x072F)
|
||||
BIG_(0x074B, 0x07A5)
|
||||
BIG_(0x07B1, 0x07EA)
|
||||
PAIR(0x07F4, 0x07F5)
|
||||
BIG_(0x07FA, 0x0815)
|
||||
PAIR(0x081A, 0x081A)
|
||||
PAIR(0x0824, 0x0824)
|
||||
PAIR(0x0828, 0x0828)
|
||||
BIG_(0x082E, 0x08FF)
|
||||
PAIR(0x200F, 0x200F)
|
||||
PAIR(0x202B, 0x202B)
|
||||
PAIR(0x202E, 0x202E)
|
||||
BIG_(0xFB1D, 0xFB1D)
|
||||
BIG_(0xFB1F, 0xFB28)
|
||||
BIG_(0xFB2A, 0xFD3D)
|
||||
BIG_(0xFD40, 0xFDCF)
|
||||
BIG_(0xFDC8, 0xFDCF)
|
||||
BIG_(0xFDF0, 0xFDFC)
|
||||
BIG_(0xFDFE, 0xFDFF)
|
||||
BIG_(0xFE70, 0xFEFE)
|
||||
/* Probably not necessary
|
||||
{0x10800, 0x1091E},
|
||||
{0x10920, 0x10A00},
|
||||
{0x10A04, 0x10A04},
|
||||
{0x10A07, 0x10A0B},
|
||||
{0x10A10, 0x10A37},
|
||||
{0x10A3B, 0x10A3E},
|
||||
{0x10A40, 0x10A7F},
|
||||
{0x10B36, 0x10B38},
|
||||
{0x10B40, 0x10E5F},
|
||||
{0x10E7F, 0x10FFF},
|
||||
{0x1E800, 0x1EFFF}
|
||||
*/
|
||||
# undef BIG_
|
||||
# undef PAIR
|
||||
};
|
||||
|
||||
static const uint16_t rtl_p[] = {
|
||||
# define BIG_(a,b)
|
||||
# define PAIR(a,b) (a << 2) | (b-a),
|
||||
/* Exact copy-n-paste of the above: */
|
||||
PAIR(0x0590, 0x0590)
|
||||
PAIR(0x05BE, 0x05BE)
|
||||
PAIR(0x05C0, 0x05C0)
|
||||
PAIR(0x05C3, 0x05C3)
|
||||
PAIR(0x05C6, 0x05C6)
|
||||
BIG_(0x05C8, 0x05FF)
|
||||
PAIR(0x0604, 0x0605)
|
||||
PAIR(0x0608, 0x0608)
|
||||
PAIR(0x060B, 0x060B)
|
||||
PAIR(0x060D, 0x060D)
|
||||
BIG_(0x061B, 0x064A)
|
||||
PAIR(0x065F, 0x065F)
|
||||
PAIR(0x066D, 0x066F)
|
||||
BIG_(0x0671, 0x06D5)
|
||||
PAIR(0x06E5, 0x06E6)
|
||||
PAIR(0x06EE, 0x06EF)
|
||||
BIG_(0x06FA, 0x070E)
|
||||
PAIR(0x0710, 0x0710)
|
||||
BIG_(0x0712, 0x072F)
|
||||
BIG_(0x074B, 0x07A5)
|
||||
BIG_(0x07B1, 0x07EA)
|
||||
PAIR(0x07F4, 0x07F5)
|
||||
BIG_(0x07FA, 0x0815)
|
||||
PAIR(0x081A, 0x081A)
|
||||
PAIR(0x0824, 0x0824)
|
||||
PAIR(0x0828, 0x0828)
|
||||
BIG_(0x082E, 0x08FF)
|
||||
PAIR(0x200F, 0x200F)
|
||||
PAIR(0x202B, 0x202B)
|
||||
PAIR(0x202E, 0x202E)
|
||||
BIG_(0xFB1D, 0xFB1D)
|
||||
BIG_(0xFB1F, 0xFB28)
|
||||
BIG_(0xFB2A, 0xFD3D)
|
||||
BIG_(0xFD40, 0xFDCF)
|
||||
BIG_(0xFDC8, 0xFDCF)
|
||||
BIG_(0xFDF0, 0xFDFC)
|
||||
BIG_(0xFDFE, 0xFDFF)
|
||||
BIG_(0xFE70, 0xFEFE)
|
||||
/* Probably not necessary
|
||||
{0x10800, 0x1091E},
|
||||
{0x10920, 0x10A00},
|
||||
{0x10A04, 0x10A04},
|
||||
{0x10A07, 0x10A0B},
|
||||
{0x10A10, 0x10A37},
|
||||
{0x10A3B, 0x10A3E},
|
||||
{0x10A40, 0x10A7F},
|
||||
{0x10B36, 0x10B38},
|
||||
{0x10B40, 0x10E5F},
|
||||
{0x10E7F, 0x10FFF},
|
||||
{0x1E800, 0x1EFFF}
|
||||
*/
|
||||
# undef BIG_
|
||||
# undef PAIR
|
||||
};
|
||||
|
||||
if (in_interval_table(wc, rtl_b, ARRAY_SIZE(rtl_b) - 1))
|
||||
return 1;
|
||||
if (in_uint16_table(wc, rtl_p, ARRAY_SIZE(rtl_p) - 1))
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
# endif /* UNICODE_BIDI_SUPPORT */
|
||||
|
||||
#endif /* Homegrown Unicode support */
|
||||
|
||||
|
||||
|
||||
@ -90,12 +90,6 @@
|
||||
* until Unicode committee assigns something there.
|
||||
*/
|
||||
|
||||
#if CONFIG_LAST_SUPPORTED_WCHAR < 126 || CONFIG_LAST_SUPPORTED_WCHAR >= 0x30000
|
||||
# define LAST_SUPPORTED_WCHAR 0x2ffff
|
||||
#else
|
||||
# define LAST_SUPPORTED_WCHAR CONFIG_LAST_SUPPORTED_WCHAR
|
||||
#endif
|
||||
|
||||
#if LAST_SUPPORTED_WCHAR >= 0x300
|
||||
struct interval {
|
||||
uint16_t first;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user