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boxdraw_data.h (6212B)

          1 /*
          2  * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih
          3  * MIT/X Consortium License
          4  */
          5
          6 /*
          7  * U+25XX codepoints data
          8  *
          9  * References:
         10  *   http://www.unicode.org/charts/PDF/U2500.pdf
         11  *   http://www.unicode.org/charts/PDF/U2580.pdf
         12  *
         13  * Test page:
         14  *   https://github.com/GNOME/vte/blob/master/doc/boxes.txt
         15  */
         16
         17 /* Each shape is encoded as 16-bits. Higher bits are category, lower are data */
         18 /* Categories (mutually exclusive except BDB): */
         19 /* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */
         20 #define BDL (1<<8)   /* Box Draw Lines (light/double/heavy) */
         21 #define BDA (1<<9)   /* Box Draw Arc (light) */
         22
         23 #define BBD (1<<10)  /* Box Block Down (lower) X/8 */
         24 #define BBL (2<<10)  /* Box Block Left X/8 */
         25 #define BBU (3<<10)  /* Box Block Upper X/8 */
         26 #define BBR (4<<10)  /* Box Block Right X/8 */
         27 #define BBQ (5<<10)  /* Box Block Quadrants */
         28 #define BRL (6<<10)  /* Box Braille (data is lower byte of U28XX) */
         29
         30 #define BBS (1<<14)  /* Box Block Shades */
         31 #define BDB (1<<15)  /* Box Draw is Bold */
         32
         33 /* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical      */
         34 /* Heavy is light+double (literally drawing light+double align to form heavy) */
         35 #define LL (1<<0)
         36 #define LU (1<<1)
         37 #define LR (1<<2)
         38 #define LD (1<<3)
         39 #define LH (LL+LR)
         40 #define LV (LU+LD)
         41
         42 #define DL (1<<4)
         43 #define DU (1<<5)
         44 #define DR (1<<6)
         45 #define DD (1<<7)
         46 #define DH (DL+DR)
         47 #define DV (DU+DD)
         48
         49 #define HL (LL+DL)
         50 #define HU (LU+DU)
         51 #define HR (LR+DR)
         52 #define HD (LD+DD)
         53 #define HH (HL+HR)
         54 #define HV (HU+HD)
         55
         56 /* (BBQ) Quadrants Top/Bottom x Left/Right */
         57 #define TL (1<<0)
         58 #define TR (1<<1)
         59 #define BL (1<<2)
         60 #define BR (1<<3)
         61
         62 /* Data for U+2500 - U+259F except dashes/diagonals */
         63 static const unsigned short boxdata[256] = {
         64 	/* light lines */
         65 	[0x00] = BDL + LH,       /* light horizontal */
         66 	[0x02] = BDL + LV,       /* light vertical */
         67 	[0x0c] = BDL + LD + LR,  /* light down and right */
         68 	[0x10] = BDL + LD + LL,  /* light down and left */
         69 	[0x14] = BDL + LU + LR,  /* light up and right */
         70 	[0x18] = BDL + LU + LL,  /* light up and left */
         71 	[0x1c] = BDL + LV + LR,  /* light vertical and right */
         72 	[0x24] = BDL + LV + LL,  /* light vertical and left */
         73 	[0x2c] = BDL + LH + LD,  /* light horizontal and down */
         74 	[0x34] = BDL + LH + LU,  /* light horizontal and up */
         75 	[0x3c] = BDL + LV + LH,  /* light vertical and horizontal */
         76 	[0x74] = BDL + LL,       /* light left */
         77 	[0x75] = BDL + LU,       /* light up */
         78 	[0x76] = BDL + LR,       /* light right */
         79 	[0x77] = BDL + LD,       /* light down */
         80
         81 	/* heavy [+light] lines */
         82 	[0x01] = BDL + HH,
         83 	[0x03] = BDL + HV,
         84 	[0x0d] = BDL + HR + LD,
         85 	[0x0e] = BDL + HD + LR,
         86 	[0x0f] = BDL + HD + HR,
         87 	[0x11] = BDL + HL + LD,
         88 	[0x12] = BDL + HD + LL,
         89 	[0x13] = BDL + HD + HL,
         90 	[0x15] = BDL + HR + LU,
         91 	[0x16] = BDL + HU + LR,
         92 	[0x17] = BDL + HU + HR,
         93 	[0x19] = BDL + HL + LU,
         94 	[0x1a] = BDL + HU + LL,
         95 	[0x1b] = BDL + HU + HL,
         96 	[0x1d] = BDL + HR + LV,
         97 	[0x1e] = BDL + HU + LD + LR,
         98 	[0x1f] = BDL + HD + LR + LU,
         99 	[0x20] = BDL + HV + LR,
        100 	[0x21] = BDL + HU + HR + LD,
        101 	[0x22] = BDL + HD + HR + LU,
        102 	[0x23] = BDL + HV + HR,
        103 	[0x25] = BDL + HL + LV,
        104 	[0x26] = BDL + HU + LD + LL,
        105 	[0x27] = BDL + HD + LU + LL,
        106 	[0x28] = BDL + HV + LL,
        107 	[0x29] = BDL + HU + HL + LD,
        108 	[0x2a] = BDL + HD + HL + LU,
        109 	[0x2b] = BDL + HV + HL,
        110 	[0x2d] = BDL + HL + LD + LR,
        111 	[0x2e] = BDL + HR + LL + LD,
        112 	[0x2f] = BDL + HH + LD,
        113 	[0x30] = BDL + HD + LH,
        114 	[0x31] = BDL + HD + HL + LR,
        115 	[0x32] = BDL + HR + HD + LL,
        116 	[0x33] = BDL + HH + HD,
        117 	[0x35] = BDL + HL + LU + LR,
        118 	[0x36] = BDL + HR + LU + LL,
        119 	[0x37] = BDL + HH + LU,
        120 	[0x38] = BDL + HU + LH,
        121 	[0x39] = BDL + HU + HL + LR,
        122 	[0x3a] = BDL + HU + HR + LL,
        123 	[0x3b] = BDL + HH + HU,
        124 	[0x3d] = BDL + HL + LV + LR,
        125 	[0x3e] = BDL + HR + LV + LL,
        126 	[0x3f] = BDL + HH + LV,
        127 	[0x40] = BDL + HU + LH + LD,
        128 	[0x41] = BDL + HD + LH + LU,
        129 	[0x42] = BDL + HV + LH,
        130 	[0x43] = BDL + HU + HL + LD + LR,
        131 	[0x44] = BDL + HU + HR + LD + LL,
        132 	[0x45] = BDL + HD + HL + LU + LR,
        133 	[0x46] = BDL + HD + HR + LU + LL,
        134 	[0x47] = BDL + HH + HU + LD,
        135 	[0x48] = BDL + HH + HD + LU,
        136 	[0x49] = BDL + HV + HL + LR,
        137 	[0x4a] = BDL + HV + HR + LL,
        138 	[0x4b] = BDL + HV + HH,
        139 	[0x78] = BDL + HL,
        140 	[0x79] = BDL + HU,
        141 	[0x7a] = BDL + HR,
        142 	[0x7b] = BDL + HD,
        143 	[0x7c] = BDL + HR + LL,
        144 	[0x7d] = BDL + HD + LU,
        145 	[0x7e] = BDL + HL + LR,
        146 	[0x7f] = BDL + HU + LD,
        147
        148 	/* double [+light] lines */
        149 	[0x50] = BDL + DH,
        150 	[0x51] = BDL + DV,
        151 	[0x52] = BDL + DR + LD,
        152 	[0x53] = BDL + DD + LR,
        153 	[0x54] = BDL + DR + DD,
        154 	[0x55] = BDL + DL + LD,
        155 	[0x56] = BDL + DD + LL,
        156 	[0x57] = BDL + DL + DD,
        157 	[0x58] = BDL + DR + LU,
        158 	[0x59] = BDL + DU + LR,
        159 	[0x5a] = BDL + DU + DR,
        160 	[0x5b] = BDL + DL + LU,
        161 	[0x5c] = BDL + DU + LL,
        162 	[0x5d] = BDL + DL + DU,
        163 	[0x5e] = BDL + DR + LV,
        164 	[0x5f] = BDL + DV + LR,
        165 	[0x60] = BDL + DV + DR,
        166 	[0x61] = BDL + DL + LV,
        167 	[0x62] = BDL + DV + LL,
        168 	[0x63] = BDL + DV + DL,
        169 	[0x64] = BDL + DH + LD,
        170 	[0x65] = BDL + DD + LH,
        171 	[0x66] = BDL + DD + DH,
        172 	[0x67] = BDL + DH + LU,
        173 	[0x68] = BDL + DU + LH,
        174 	[0x69] = BDL + DH + DU,
        175 	[0x6a] = BDL + DH + LV,
        176 	[0x6b] = BDL + DV + LH,
        177 	[0x6c] = BDL + DH + DV,
        178
        179 	/* (light) arcs */
        180 	[0x6d] = BDA + LD + LR,
        181 	[0x6e] = BDA + LD + LL,
        182 	[0x6f] = BDA + LU + LL,
        183 	[0x70] = BDA + LU + LR,
        184
        185 	/* Lower (Down) X/8 block (data is 8 - X) */
        186 	[0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4,
        187 	[0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0,
        188
        189 	/* Left X/8 block (data is X) */
        190 	[0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4,
        191 	[0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1,
        192
        193 	/* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */
        194 	[0x80] = BBU + 4, [0x94] = BBU + 1,
        195 	[0x90] = BBR + 4, [0x95] = BBR + 7,
        196
        197 	/* Quadrants */
        198 	[0x96] = BBQ + BL,
        199 	[0x97] = BBQ + BR,
        200 	[0x98] = BBQ + TL,
        201 	[0x99] = BBQ + TL + BL + BR,
        202 	[0x9a] = BBQ + TL + BR,
        203 	[0x9b] = BBQ + TL + TR + BL,
        204 	[0x9c] = BBQ + TL + TR + BR,
        205 	[0x9d] = BBQ + TR,
        206 	[0x9e] = BBQ + BL + TR,
        207 	[0x9f] = BBQ + BL + TR + BR,
        208
        209 	/* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */
        210 	[0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3,
        211
        212 	/* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */
        213 	/* U+2571 - U+2573: unsupported (diagonals) */
        214 };