diff options
| -rw-r--r-- | drivers/tty/vt/ucs.c | 44 | ||||
| -rw-r--r-- | include/linux/consolemap.h | 6 |
2 files changed, 25 insertions, 25 deletions
diff --git a/drivers/tty/vt/ucs.c b/drivers/tty/vt/ucs.c index dc4a6e794531..5f9f25bd201b 100644 --- a/drivers/tty/vt/ucs.c +++ b/drivers/tty/vt/ucs.c @@ -8,22 +8,12 @@ #include <linux/consolemap.h> #include <linux/minmax.h> -/* ucs_is_double_width() is based on the wcwidth() implementation by - * Markus Kuhn -- 2007-05-26 (Unicode 5.0) - * Latest version: https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c - */ - struct ucs_interval { u32 first; u32 last; }; -static const struct ucs_interval ucs_double_width_ranges[] = { - { 0x1100, 0x115F }, { 0x2329, 0x232A }, { 0x2E80, 0x303E }, - { 0x3040, 0xA4CF }, { 0xAC00, 0xD7A3 }, { 0xF900, 0xFAFF }, - { 0xFE10, 0xFE19 }, { 0xFE30, 0xFE6F }, { 0xFF00, 0xFF60 }, - { 0xFFE0, 0xFFE6 }, { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD } -}; +#include "ucs_width_table.h" static int interval_cmp(const void *key, const void *element) { @@ -37,6 +27,27 @@ static int interval_cmp(const void *key, const void *element) return 0; } +static bool cp_in_range(u32 cp, const struct ucs_interval *ranges, size_t size) +{ + if (!in_range(cp, ranges[0].first, ranges[size - 1].last)) + return false; + + return __inline_bsearch(&cp, ranges, size, sizeof(*ranges), + interval_cmp) != NULL; +} + +/** + * ucs_is_zero_width() - Determine if a Unicode code point is zero-width. + * @cp: Unicode code point (UCS-4) + * + * Return: true if the character is zero-width, false otherwise + */ +bool ucs_is_zero_width(u32 cp) +{ + return cp_in_range(cp, ucs_zero_width_ranges, + ARRAY_SIZE(ucs_zero_width_ranges)); +} + /** * ucs_is_double_width() - Determine if a Unicode code point is double-width. * @cp: Unicode code point (UCS-4) @@ -45,13 +56,6 @@ static int interval_cmp(const void *key, const void *element) */ bool ucs_is_double_width(u32 cp) { - size_t size = ARRAY_SIZE(ucs_double_width_ranges); - - if (!in_range(cp, ucs_double_width_ranges[0].first, - ucs_double_width_ranges[size - 1].last)) - return false; - - return __inline_bsearch(&cp, ucs_double_width_ranges, size, - sizeof(*ucs_double_width_ranges), - interval_cmp) != NULL; + return cp_in_range(cp, ucs_double_width_ranges, + ARRAY_SIZE(ucs_double_width_ranges)); } diff --git a/include/linux/consolemap.h b/include/linux/consolemap.h index 7d778752dcef..b3a911866662 100644 --- a/include/linux/consolemap.h +++ b/include/linux/consolemap.h @@ -29,11 +29,7 @@ u32 conv_8bit_to_uni(unsigned char c); int conv_uni_to_8bit(u32 uni); void console_map_init(void); bool ucs_is_double_width(uint32_t cp); -static inline bool ucs_is_zero_width(uint32_t cp) -{ - /* coming soon */ - return false; -} +bool ucs_is_zero_width(uint32_t cp); #else static inline u16 inverse_translate(const struct vc_data *conp, u16 glyph, bool use_unicode) |