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|
// To update this file to the lastest version of the Unicode standard
// save the Lua script below to a file named 'getranges.lua'
// execute as:
// curl -s https://www.unicode.org/Public/UCD/latest/ucd/EastAsianWidth.txt | lua getranges.lua
/* the script:
local function singleline(line)
if line:find("; A", 1, true) then -- handle ambiguous characters only
local s,e = line:match("^([0-9a-fA-F]+)%.?%.?([0-9a-fA-F]*)")
e = (e == "" and s) or e -- single char, so end-range == start-range
local cmmnt = "// "..line:match("(; A.*)$")
local range = " {0x"..s..", 0x"..e.."},"
print(range..(" "):rep(30-#range)..cmmnt) -- print formatted output line
end
end
-- read all lines from stdin and iterate over them
local t = {}
for line in io.lines() do
line = line:match("^%s*(.-)%s*$") -- strip whitespace
if line ~= "" and line:sub(1,1) ~= "#" then -- skip comments and empty lines
singleline(line)
end
end
*/
#include "wcwidtha.h"
struct interval {
mk_wchar_t start;
mk_wchar_t end;
};
// Takes a unicode character, and return whether the character is in the list of
// ambiguous width characters.
int mk_wcwidth_a(mk_wchar_t ucs)
{
/* sorted list of ambiguous width characters in East Asian displays */
/* generated by script in the comments above */
static const struct interval ranges[] = {
{0x00A1, 0x00A1}, // ; A # Po INVERTED EXCLAMATION MARK
{0x00A4, 0x00A4}, // ; A # Sc CURRENCY SIGN
{0x00A7, 0x00A7}, // ; A # Po SECTION SIGN
{0x00A8, 0x00A8}, // ; A # Sk DIAERESIS
{0x00AA, 0x00AA}, // ; A # Lo FEMININE ORDINAL INDICATOR
{0x00AD, 0x00AD}, // ; A # Cf SOFT HYPHEN
{0x00AE, 0x00AE}, // ; A # So REGISTERED SIGN
{0x00B0, 0x00B0}, // ; A # So DEGREE SIGN
{0x00B1, 0x00B1}, // ; A # Sm PLUS-MINUS SIGN
{0x00B2, 0x00B3}, // ; A # No [2] SUPERSCRIPT TWO..SUPERSCRIPT THREE
{0x00B4, 0x00B4}, // ; A # Sk ACUTE ACCENT
{0x00B6, 0x00B7}, // ; A # Po [2] PILCROW SIGN..MIDDLE DOT
{0x00B8, 0x00B8}, // ; A # Sk CEDILLA
{0x00B9, 0x00B9}, // ; A # No SUPERSCRIPT ONE
{0x00BA, 0x00BA}, // ; A # Lo MASCULINE ORDINAL INDICATOR
{0x00BC, 0x00BE}, // ; A # No [3] VULGAR FRACTION ONE QUARTER..VULGAR FRACTION THREE QUARTERS
{0x00BF, 0x00BF}, // ; A # Po INVERTED QUESTION MARK
{0x00C6, 0x00C6}, // ; A # Lu LATIN CAPITAL LETTER AE
{0x00D0, 0x00D0}, // ; A # Lu LATIN CAPITAL LETTER ETH
{0x00D7, 0x00D7}, // ; A # Sm MULTIPLICATION SIGN
{0x00D8, 0x00D8}, // ; A # Lu LATIN CAPITAL LETTER O WITH STROKE
{0x00DE, 0x00E1}, // ; A # L& [4] LATIN CAPITAL LETTER THORN..LATIN SMALL LETTER A WITH ACUTE
{0x00E6, 0x00E6}, // ; A # Ll LATIN SMALL LETTER AE
{0x00E8, 0x00EA}, // ; A # Ll [3] LATIN SMALL LETTER E WITH GRAVE..LATIN SMALL LETTER E WITH CIRCUMFLEX
{0x00EC, 0x00ED}, // ; A # Ll [2] LATIN SMALL LETTER I WITH GRAVE..LATIN SMALL LETTER I WITH ACUTE
{0x00F0, 0x00F0}, // ; A # Ll LATIN SMALL LETTER ETH
{0x00F2, 0x00F3}, // ; A # Ll [2] LATIN SMALL LETTER O WITH GRAVE..LATIN SMALL LETTER O WITH ACUTE
{0x00F7, 0x00F7}, // ; A # Sm DIVISION SIGN
{0x00F8, 0x00FA}, // ; A # Ll [3] LATIN SMALL LETTER O WITH STROKE..LATIN SMALL LETTER U WITH ACUTE
{0x00FC, 0x00FC}, // ; A # Ll LATIN SMALL LETTER U WITH DIAERESIS
{0x00FE, 0x00FE}, // ; A # Ll LATIN SMALL LETTER THORN
{0x0101, 0x0101}, // ; A # Ll LATIN SMALL LETTER A WITH MACRON
{0x0111, 0x0111}, // ; A # Ll LATIN SMALL LETTER D WITH STROKE
{0x0113, 0x0113}, // ; A # Ll LATIN SMALL LETTER E WITH MACRON
{0x011B, 0x011B}, // ; A # Ll LATIN SMALL LETTER E WITH CARON
{0x0126, 0x0127}, // ; A # L& [2] LATIN CAPITAL LETTER H WITH STROKE..LATIN SMALL LETTER H WITH STROKE
{0x012B, 0x012B}, // ; A # Ll LATIN SMALL LETTER I WITH MACRON
{0x0131, 0x0133}, // ; A # L& [3] LATIN SMALL LETTER DOTLESS I..LATIN SMALL LIGATURE IJ
{0x0138, 0x0138}, // ; A # Ll LATIN SMALL LETTER KRA
{0x013F, 0x0142}, // ; A # L& [4] LATIN CAPITAL LETTER L WITH MIDDLE DOT..LATIN SMALL LETTER L WITH STROKE
{0x0144, 0x0144}, // ; A # Ll LATIN SMALL LETTER N WITH ACUTE
{0x0148, 0x014B}, // ; A # L& [4] LATIN SMALL LETTER N WITH CARON..LATIN SMALL LETTER ENG
{0x014D, 0x014D}, // ; A # Ll LATIN SMALL LETTER O WITH MACRON
{0x0152, 0x0153}, // ; A # L& [2] LATIN CAPITAL LIGATURE OE..LATIN SMALL LIGATURE OE
{0x0166, 0x0167}, // ; A # L& [2] LATIN CAPITAL LETTER T WITH STROKE..LATIN SMALL LETTER T WITH STROKE
{0x016B, 0x016B}, // ; A # Ll LATIN SMALL LETTER U WITH MACRON
{0x01CE, 0x01CE}, // ; A # Ll LATIN SMALL LETTER A WITH CARON
{0x01D0, 0x01D0}, // ; A # Ll LATIN SMALL LETTER I WITH CARON
{0x01D2, 0x01D2}, // ; A # Ll LATIN SMALL LETTER O WITH CARON
{0x01D4, 0x01D4}, // ; A # Ll LATIN SMALL LETTER U WITH CARON
{0x01D6, 0x01D6}, // ; A # Ll LATIN SMALL LETTER U WITH DIAERESIS AND MACRON
{0x01D8, 0x01D8}, // ; A # Ll LATIN SMALL LETTER U WITH DIAERESIS AND ACUTE
{0x01DA, 0x01DA}, // ; A # Ll LATIN SMALL LETTER U WITH DIAERESIS AND CARON
{0x01DC, 0x01DC}, // ; A # Ll LATIN SMALL LETTER U WITH DIAERESIS AND GRAVE
{0x0251, 0x0251}, // ; A # Ll LATIN SMALL LETTER ALPHA
{0x0261, 0x0261}, // ; A # Ll LATIN SMALL LETTER SCRIPT G
{0x02C4, 0x02C4}, // ; A # Sk MODIFIER LETTER UP ARROWHEAD
{0x02C7, 0x02C7}, // ; A # Lm CARON
{0x02C9, 0x02CB}, // ; A # Lm [3] MODIFIER LETTER MACRON..MODIFIER LETTER GRAVE ACCENT
{0x02CD, 0x02CD}, // ; A # Lm MODIFIER LETTER LOW MACRON
{0x02D0, 0x02D0}, // ; A # Lm MODIFIER LETTER TRIANGULAR COLON
{0x02D8, 0x02DB}, // ; A # Sk [4] BREVE..OGONEK
{0x02DD, 0x02DD}, // ; A # Sk DOUBLE ACUTE ACCENT
{0x02DF, 0x02DF}, // ; A # Sk MODIFIER LETTER CROSS ACCENT
{0x0300, 0x036F}, // ; A # Mn [112] COMBINING GRAVE ACCENT..COMBINING LATIN SMALL LETTER X
{0x0391, 0x03A1}, // ; A # Lu [17] GREEK CAPITAL LETTER ALPHA..GREEK CAPITAL LETTER RHO
{0x03A3, 0x03A9}, // ; A # Lu [7] GREEK CAPITAL LETTER SIGMA..GREEK CAPITAL LETTER OMEGA
{0x03B1, 0x03C1}, // ; A # Ll [17] GREEK SMALL LETTER ALPHA..GREEK SMALL LETTER RHO
{0x03C3, 0x03C9}, // ; A # Ll [7] GREEK SMALL LETTER SIGMA..GREEK SMALL LETTER OMEGA
{0x0401, 0x0401}, // ; A # Lu CYRILLIC CAPITAL LETTER IO
{0x0410, 0x044F}, // ; A # L& [64] CYRILLIC CAPITAL LETTER A..CYRILLIC SMALL LETTER YA
{0x0451, 0x0451}, // ; A # Ll CYRILLIC SMALL LETTER IO
{0x2010, 0x2010}, // ; A # Pd HYPHEN
{0x2013, 0x2015}, // ; A # Pd [3] EN DASH..HORIZONTAL BAR
{0x2016, 0x2016}, // ; A # Po DOUBLE VERTICAL LINE
{0x2018, 0x2018}, // ; A # Pi LEFT SINGLE QUOTATION MARK
{0x2019, 0x2019}, // ; A # Pf RIGHT SINGLE QUOTATION MARK
{0x201C, 0x201C}, // ; A # Pi LEFT DOUBLE QUOTATION MARK
{0x201D, 0x201D}, // ; A # Pf RIGHT DOUBLE QUOTATION MARK
{0x2020, 0x2022}, // ; A # Po [3] DAGGER..BULLET
{0x2024, 0x2027}, // ; A # Po [4] ONE DOT LEADER..HYPHENATION POINT
{0x2030, 0x2030}, // ; A # Po PER MILLE SIGN
{0x2032, 0x2033}, // ; A # Po [2] PRIME..DOUBLE PRIME
{0x2035, 0x2035}, // ; A # Po REVERSED PRIME
{0x203B, 0x203B}, // ; A # Po REFERENCE MARK
{0x203E, 0x203E}, // ; A # Po OVERLINE
{0x2074, 0x2074}, // ; A # No SUPERSCRIPT FOUR
{0x207F, 0x207F}, // ; A # Lm SUPERSCRIPT LATIN SMALL LETTER N
{0x2081, 0x2084}, // ; A # No [4] SUBSCRIPT ONE..SUBSCRIPT FOUR
{0x20AC, 0x20AC}, // ; A # Sc EURO SIGN
{0x2103, 0x2103}, // ; A # So DEGREE CELSIUS
{0x2105, 0x2105}, // ; A # So CARE OF
{0x2109, 0x2109}, // ; A # So DEGREE FAHRENHEIT
{0x2113, 0x2113}, // ; A # Ll SCRIPT SMALL L
{0x2116, 0x2116}, // ; A # So NUMERO SIGN
{0x2121, 0x2122}, // ; A # So [2] TELEPHONE SIGN..TRADE MARK SIGN
{0x2126, 0x2126}, // ; A # Lu OHM SIGN
{0x212B, 0x212B}, // ; A # Lu ANGSTROM SIGN
{0x2153, 0x2154}, // ; A # No [2] VULGAR FRACTION ONE THIRD..VULGAR FRACTION TWO THIRDS
{0x215B, 0x215E}, // ; A # No [4] VULGAR FRACTION ONE EIGHTH..VULGAR FRACTION SEVEN EIGHTHS
{0x2160, 0x216B}, // ; A # Nl [12] ROMAN NUMERAL ONE..ROMAN NUMERAL TWELVE
{0x2170, 0x2179}, // ; A # Nl [10] SMALL ROMAN NUMERAL ONE..SMALL ROMAN NUMERAL TEN
{0x2189, 0x2189}, // ; A # No VULGAR FRACTION ZERO THIRDS
{0x2190, 0x2194}, // ; A # Sm [5] LEFTWARDS ARROW..LEFT RIGHT ARROW
{0x2195, 0x2199}, // ; A # So [5] UP DOWN ARROW..SOUTH WEST ARROW
{0x21B8, 0x21B9}, // ; A # So [2] NORTH WEST ARROW TO LONG BAR..LEFTWARDS ARROW TO BAR OVER RIGHTWARDS ARROW TO BAR
{0x21D2, 0x21D2}, // ; A # Sm RIGHTWARDS DOUBLE ARROW
{0x21D4, 0x21D4}, // ; A # Sm LEFT RIGHT DOUBLE ARROW
{0x21E7, 0x21E7}, // ; A # So UPWARDS WHITE ARROW
{0x2200, 0x2200}, // ; A # Sm FOR ALL
{0x2202, 0x2203}, // ; A # Sm [2] PARTIAL DIFFERENTIAL..THERE EXISTS
{0x2207, 0x2208}, // ; A # Sm [2] NABLA..ELEMENT OF
{0x220B, 0x220B}, // ; A # Sm CONTAINS AS MEMBER
{0x220F, 0x220F}, // ; A # Sm N-ARY PRODUCT
{0x2211, 0x2211}, // ; A # Sm N-ARY SUMMATION
{0x2215, 0x2215}, // ; A # Sm DIVISION SLASH
{0x221A, 0x221A}, // ; A # Sm SQUARE ROOT
{0x221D, 0x2220}, // ; A # Sm [4] PROPORTIONAL TO..ANGLE
{0x2223, 0x2223}, // ; A # Sm DIVIDES
{0x2225, 0x2225}, // ; A # Sm PARALLEL TO
{0x2227, 0x222C}, // ; A # Sm [6] LOGICAL AND..DOUBLE INTEGRAL
{0x222E, 0x222E}, // ; A # Sm CONTOUR INTEGRAL
{0x2234, 0x2237}, // ; A # Sm [4] THEREFORE..PROPORTION
{0x223C, 0x223D}, // ; A # Sm [2] TILDE OPERATOR..REVERSED TILDE
{0x2248, 0x2248}, // ; A # Sm ALMOST EQUAL TO
{0x224C, 0x224C}, // ; A # Sm ALL EQUAL TO
{0x2252, 0x2252}, // ; A # Sm APPROXIMATELY EQUAL TO OR THE IMAGE OF
{0x2260, 0x2261}, // ; A # Sm [2] NOT EQUAL TO..IDENTICAL TO
{0x2264, 0x2267}, // ; A # Sm [4] LESS-THAN OR EQUAL TO..GREATER-THAN OVER EQUAL TO
{0x226A, 0x226B}, // ; A # Sm [2] MUCH LESS-THAN..MUCH GREATER-THAN
{0x226E, 0x226F}, // ; A # Sm [2] NOT LESS-THAN..NOT GREATER-THAN
{0x2282, 0x2283}, // ; A # Sm [2] SUBSET OF..SUPERSET OF
{0x2286, 0x2287}, // ; A # Sm [2] SUBSET OF OR EQUAL TO..SUPERSET OF OR EQUAL TO
{0x2295, 0x2295}, // ; A # Sm CIRCLED PLUS
{0x2299, 0x2299}, // ; A # Sm CIRCLED DOT OPERATOR
{0x22A5, 0x22A5}, // ; A # Sm UP TACK
{0x22BF, 0x22BF}, // ; A # Sm RIGHT TRIANGLE
{0x2312, 0x2312}, // ; A # So ARC
{0x2460, 0x249B}, // ; A # No [60] CIRCLED DIGIT ONE..NUMBER TWENTY FULL STOP
{0x249C, 0x24E9}, // ; A # So [78] PARENTHESIZED LATIN SMALL LETTER A..CIRCLED LATIN SMALL LETTER Z
{0x24EB, 0x24FF}, // ; A # No [21] NEGATIVE CIRCLED NUMBER ELEVEN..NEGATIVE CIRCLED DIGIT ZERO
{0x2500, 0x254B}, // ; A # So [76] BOX DRAWINGS LIGHT HORIZONTAL..BOX DRAWINGS HEAVY VERTICAL AND HORIZONTAL
{0x2550, 0x2573}, // ; A # So [36] BOX DRAWINGS DOUBLE HORIZONTAL..BOX DRAWINGS LIGHT DIAGONAL CROSS
{0x2580, 0x258F}, // ; A # So [16] UPPER HALF BLOCK..LEFT ONE EIGHTH BLOCK
{0x2592, 0x2595}, // ; A # So [4] MEDIUM SHADE..RIGHT ONE EIGHTH BLOCK
{0x25A0, 0x25A1}, // ; A # So [2] BLACK SQUARE..WHITE SQUARE
{0x25A3, 0x25A9}, // ; A # So [7] WHITE SQUARE CONTAINING BLACK SMALL SQUARE..SQUARE WITH DIAGONAL CROSSHATCH FILL
{0x25B2, 0x25B3}, // ; A # So [2] BLACK UP-POINTING TRIANGLE..WHITE UP-POINTING TRIANGLE
{0x25B6, 0x25B6}, // ; A # So BLACK RIGHT-POINTING TRIANGLE
{0x25B7, 0x25B7}, // ; A # Sm WHITE RIGHT-POINTING TRIANGLE
{0x25BC, 0x25BD}, // ; A # So [2] BLACK DOWN-POINTING TRIANGLE..WHITE DOWN-POINTING TRIANGLE
{0x25C0, 0x25C0}, // ; A # So BLACK LEFT-POINTING TRIANGLE
{0x25C1, 0x25C1}, // ; A # Sm WHITE LEFT-POINTING TRIANGLE
{0x25C6, 0x25C8}, // ; A # So [3] BLACK DIAMOND..WHITE DIAMOND CONTAINING BLACK SMALL DIAMOND
{0x25CB, 0x25CB}, // ; A # So WHITE CIRCLE
{0x25CE, 0x25D1}, // ; A # So [4] BULLSEYE..CIRCLE WITH RIGHT HALF BLACK
{0x25E2, 0x25E5}, // ; A # So [4] BLACK LOWER RIGHT TRIANGLE..BLACK UPPER RIGHT TRIANGLE
{0x25EF, 0x25EF}, // ; A # So LARGE CIRCLE
{0x2605, 0x2606}, // ; A # So [2] BLACK STAR..WHITE STAR
{0x2609, 0x2609}, // ; A # So SUN
{0x260E, 0x260F}, // ; A # So [2] BLACK TELEPHONE..WHITE TELEPHONE
{0x261C, 0x261C}, // ; A # So WHITE LEFT POINTING INDEX
{0x261E, 0x261E}, // ; A # So WHITE RIGHT POINTING INDEX
{0x2640, 0x2640}, // ; A # So FEMALE SIGN
{0x2642, 0x2642}, // ; A # So MALE SIGN
{0x2660, 0x2661}, // ; A # So [2] BLACK SPADE SUIT..WHITE HEART SUIT
{0x2663, 0x2665}, // ; A # So [3] BLACK CLUB SUIT..BLACK HEART SUIT
{0x2667, 0x266A}, // ; A # So [4] WHITE CLUB SUIT..EIGHTH NOTE
{0x266C, 0x266D}, // ; A # So [2] BEAMED SIXTEENTH NOTES..MUSIC FLAT SIGN
{0x266F, 0x266F}, // ; A # Sm MUSIC SHARP SIGN
{0x269E, 0x269F}, // ; A # So [2] THREE LINES CONVERGING RIGHT..THREE LINES CONVERGING LEFT
{0x26BF, 0x26BF}, // ; A # So SQUARED KEY
{0x26C6, 0x26CD}, // ; A # So [8] RAIN..DISABLED CAR
{0x26CF, 0x26D3}, // ; A # So [5] PICK..CHAINS
{0x26D5, 0x26E1}, // ; A # So [13] ALTERNATE ONE-WAY LEFT WAY TRAFFIC..RESTRICTED LEFT ENTRY-2
{0x26E3, 0x26E3}, // ; A # So HEAVY CIRCLE WITH STROKE AND TWO DOTS ABOVE
{0x26E8, 0x26E9}, // ; A # So [2] BLACK CROSS ON SHIELD..SHINTO SHRINE
{0x26EB, 0x26F1}, // ; A # So [7] CASTLE..UMBRELLA ON GROUND
{0x26F4, 0x26F4}, // ; A # So FERRY
{0x26F6, 0x26F9}, // ; A # So [4] SQUARE FOUR CORNERS..PERSON WITH BALL
{0x26FB, 0x26FC}, // ; A # So [2] JAPANESE BANK SYMBOL..HEADSTONE GRAVEYARD SYMBOL
{0x26FE, 0x26FF}, // ; A # So [2] CUP ON BLACK SQUARE..WHITE FLAG WITH HORIZONTAL MIDDLE BLACK STRIPE
{0x273D, 0x273D}, // ; A # So HEAVY TEARDROP-SPOKED ASTERISK
{0x2776, 0x277F}, // ; A # No [10] DINGBAT NEGATIVE CIRCLED DIGIT ONE..DINGBAT NEGATIVE CIRCLED NUMBER TEN
{0x2B56, 0x2B59}, // ; A # So [4] HEAVY OVAL WITH OVAL INSIDE..HEAVY CIRCLED SALTIRE
{0x3248, 0x324F}, // ; A # No [8] CIRCLED NUMBER TEN ON BLACK SQUARE..CIRCLED NUMBER EIGHTY ON BLACK SQUARE
{0xE000, 0xF8FF}, // ; A # Co [6400] <private-use-E000>..<private-use-F8FF>
{0xFE00, 0xFE0F}, // ; A # Mn [16] VARIATION SELECTOR-1..VARIATION SELECTOR-16
{0xFFFD, 0xFFFD}, // ; A # So REPLACEMENT CHARACTER
{0x1F100, 0x1F10A}, // ; A # No [11] DIGIT ZERO FULL STOP..DIGIT NINE COMMA
{0x1F110, 0x1F12D}, // ; A # So [30] PARENTHESIZED LATIN CAPITAL LETTER A..CIRCLED CD
{0x1F130, 0x1F169}, // ; A # So [58] SQUARED LATIN CAPITAL LETTER A..NEGATIVE CIRCLED LATIN CAPITAL LETTER Z
{0x1F170, 0x1F18D}, // ; A # So [30] NEGATIVE SQUARED LATIN CAPITAL LETTER A..NEGATIVE SQUARED SA
{0x1F18F, 0x1F190}, // ; A # So [2] NEGATIVE SQUARED WC..SQUARE DJ
{0x1F19B, 0x1F1AC}, // ; A # So [18] SQUARED THREE D..SQUARED VOD
{0xE0100, 0xE01EF}, // ; A # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
{0xF0000, 0xFFFFD}, // ; A # Co [65534] <private-use-F0000>..<private-use-FFFFD>
{0x100000, 0x10FFFD} // ; A # Co [65534] <private-use-100000>..<private-use-10FFFD>
};
const size_t num_ranges = sizeof(ranges) / sizeof(ranges[0]);
int left = 0, right = num_ranges - 1;
while (left <= right) {
int mid = left + (right - left) / 2;
if (ucs >= ranges[mid].start && ucs <= ranges[mid].end) {
return 1; // Character is in the range
} else if (ucs < ranges[mid].start) {
right = mid - 1;
} else {
left = mid + 1;
}
}
return 0; // Character is not in any of the ranges
}
|
