| 1 | #include "tdef.h" |
| 2 | extern |
| 3 | #include "d.h" |
| 4 | extern |
| 5 | #include "v.h" |
| 6 | #ifdef NROFF |
| 7 | extern |
| 8 | #include "tw.h" |
| 9 | #endif |
| 10 | |
| 11 | /* |
| 12 | troff6.c |
| 13 | |
| 14 | width functions, sizes and fonts |
| 15 | */ |
| 16 | |
| 17 | extern int eschar; |
| 18 | extern int widthp; |
| 19 | extern int ohc; |
| 20 | extern int xfont; |
| 21 | extern int smnt; |
| 22 | extern int setwdf; |
| 23 | extern char trtab[]; |
| 24 | extern int chbits; |
| 25 | extern int nonumb; |
| 26 | extern int noscale; |
| 27 | extern int font; |
| 28 | extern int font1; |
| 29 | extern int pts; |
| 30 | extern int sps; |
| 31 | extern int nlflg; |
| 32 | extern int nform; |
| 33 | extern int dfact; |
| 34 | extern int dfactd; |
| 35 | extern int lss; |
| 36 | extern int lss1; |
| 37 | extern int vflag; |
| 38 | extern int ch0; |
| 39 | extern int level; |
| 40 | extern int ch; |
| 41 | extern int res; |
| 42 | extern int xxx; |
| 43 | int fontlab[] = {'R','I','B','S',0}; |
| 44 | |
| 45 | width(c) |
| 46 | int c; |
| 47 | { |
| 48 | register i,j,k; |
| 49 | |
| 50 | j = c; |
| 51 | k = 0; |
| 52 | if(j & MOT){ |
| 53 | if(j & VMOT)goto rtn; |
| 54 | k = j & ~MOTV; |
| 55 | if(j & NMOT)k = -k; |
| 56 | goto rtn; |
| 57 | } |
| 58 | if((i = (j & CMASK)) == 010){ |
| 59 | k = -widthp; |
| 60 | goto rtn; |
| 61 | } |
| 62 | if(i == PRESC)i = eschar; |
| 63 | if((i == ohc) || |
| 64 | (i >= 0370))goto rtn; |
| 65 | if(j & ZBIT)goto rtn; |
| 66 | i = trtab[i] & BMASK; |
| 67 | if(i < 040)goto rtn; |
| 68 | k = (*(t.codetab[i-32]) & 0177) * t.Char; |
| 69 | widthp = k; |
| 70 | rtn: |
| 71 | return(k); |
| 72 | } |
| 73 | setch(){ |
| 74 | register i,*j,k; |
| 75 | extern int chtab[]; |
| 76 | |
| 77 | if((i = getrq()) == 0)return(0); |
| 78 | for(j=chtab;*j != i;j++)if(*(j++) == 0)return(0); |
| 79 | k = *(++j) | chbits; |
| 80 | return(k); |
| 81 | } |
| 82 | find(i,j) |
| 83 | int i,j[]; |
| 84 | { |
| 85 | register k; |
| 86 | |
| 87 | if(((k = i-'0') >= 1) && (k <= 4) && (k != smnt))return(--k); |
| 88 | for(k=0; j[k] != i; k++)if(j[k] == 0)return(-1); |
| 89 | return(k); |
| 90 | } |
| 91 | mchbits(){ |
| 92 | chbits = (((pts)<<2) | font) << (BYTE + 1); |
| 93 | sps = width(' ' | chbits); |
| 94 | } |
| 95 | setps(){ |
| 96 | register i,j; |
| 97 | |
| 98 | if((((i=getch() & CMASK) == '+') || (i == '-')) && |
| 99 | (((j=(ch = getch() & CMASK) - '0') >= 0) && (j <= 9))){ |
| 100 | ch = 0; |
| 101 | return; |
| 102 | } |
| 103 | if((i -= '0') == 0){ |
| 104 | return; |
| 105 | } |
| 106 | if((i > 0) && (i <= 9)){ |
| 107 | if((i <= 3) && |
| 108 | ((j=(ch = getch() & CMASK) - '0') >= 0) && (j <= 9)){ |
| 109 | i = 10*i +j; |
| 110 | ch = 0; |
| 111 | } |
| 112 | } |
| 113 | } |
| 114 | caseft(){ |
| 115 | skip(); |
| 116 | setfont(1); |
| 117 | } |
| 118 | setfont(a) |
| 119 | int a; |
| 120 | { |
| 121 | register i,j; |
| 122 | |
| 123 | if(a)i = getrq(); |
| 124 | else i = getsn(); |
| 125 | if(!i || (i == 'P')){ |
| 126 | j = font1; |
| 127 | goto s0; |
| 128 | } |
| 129 | if(i == 'S')return; |
| 130 | if((j = find(i,fontlab)) == -1)return; |
| 131 | s0: |
| 132 | font1 = font; |
| 133 | font = j; |
| 134 | mchbits(); |
| 135 | } |
| 136 | setwd(){ |
| 137 | register i, base, wid; |
| 138 | int delim, em, k; |
| 139 | int savlevel, savhp, savfont, savfont1; |
| 140 | |
| 141 | base = v.st = v.sb = wid = v.ct = 0; |
| 142 | if((delim = getch() & CMASK) & MOT)return; |
| 143 | savhp = v.hp; |
| 144 | savlevel = level; |
| 145 | v.hp = level = 0; |
| 146 | savfont = font; |
| 147 | savfont1 = font1; |
| 148 | setwdf++; |
| 149 | while((((i = getch()) & CMASK) != delim) && !nlflg){ |
| 150 | wid += width(i); |
| 151 | if(!(i & MOT)){ |
| 152 | em = 2*t.Halfline; |
| 153 | }else if(i & VMOT){ |
| 154 | k = i & ~MOTV; |
| 155 | if(i & NMOT)k = -k; |
| 156 | base -= k; |
| 157 | em = 0; |
| 158 | }else continue; |
| 159 | if(base < v.sb)v.sb = base; |
| 160 | if((k=base + em) > v.st)v.st = k; |
| 161 | } |
| 162 | nform = 0; |
| 163 | setn1(wid); |
| 164 | v.hp = savhp; |
| 165 | level = savlevel; |
| 166 | font = savfont; |
| 167 | font1 = savfont1; |
| 168 | mchbits(); |
| 169 | setwdf = 0; |
| 170 | } |
| 171 | vmot(){ |
| 172 | dfact = lss; |
| 173 | vflag++; |
| 174 | return(mot()); |
| 175 | } |
| 176 | hmot(){ |
| 177 | dfact = EM; |
| 178 | return(mot()); |
| 179 | } |
| 180 | mot(){ |
| 181 | register i, j; |
| 182 | |
| 183 | j = HOR; |
| 184 | getch(); /*eat delim*/ |
| 185 | if(i = atoi()){ |
| 186 | if(vflag)j = VERT; |
| 187 | i = makem(quant(i,j)); |
| 188 | } |
| 189 | getch(); |
| 190 | vflag = 0; |
| 191 | dfact = 1; |
| 192 | return(i); |
| 193 | } |
| 194 | sethl(k) |
| 195 | int k; |
| 196 | { |
| 197 | register i; |
| 198 | |
| 199 | i = t.Halfline; |
| 200 | if(k == 'u')i = -i; |
| 201 | else if(k == 'r')i = -2*i; |
| 202 | vflag++; |
| 203 | i = makem(i); |
| 204 | vflag = 0; |
| 205 | return(i); |
| 206 | } |
| 207 | makem(i) |
| 208 | int i; |
| 209 | { |
| 210 | register j; |
| 211 | |
| 212 | if((j = i) < 0)j = -j; |
| 213 | j = (j & ~MOTV) | MOT; |
| 214 | if(i < 0)j |= NMOT; |
| 215 | if(vflag)j |= VMOT; |
| 216 | return(j); |
| 217 | } |
| 218 | casefp(){ |
| 219 | register i, j; |
| 220 | |
| 221 | skip(); |
| 222 | if(((i = (getch() & CMASK) - '0' -1) < 0) || (i >3))return; |
| 223 | if(skip() || !(j = getrq()))return; |
| 224 | fontlab[i] = j; |
| 225 | } |
| 226 | casevs(){ |
| 227 | register i; |
| 228 | |
| 229 | skip(); |
| 230 | vflag++; |
| 231 | dfact = INCH; /*default scaling is points!*/ |
| 232 | dfactd = 72; |
| 233 | res = VERT; |
| 234 | i = inumb(&lss); |
| 235 | if(nonumb)i = lss1; |
| 236 | if(i < VERT)i = VERT; |
| 237 | lss1 = lss; |
| 238 | lss = i; |
| 239 | } |
| 240 | xlss(){ |
| 241 | register i, j; |
| 242 | |
| 243 | getch(); |
| 244 | dfact = lss; |
| 245 | i = quant(atoi(),VERT); |
| 246 | dfact = 1; |
| 247 | getch(); |
| 248 | if((j = i) < 0)j = -j; |
| 249 | ch0 = ((j & 03700)<<3) | HX; |
| 250 | if(i < 0)ch0 |= 040000; |
| 251 | return(((j & 077)<<9) | LX); |
| 252 | } |
| 253 | casefz(){} |
| 254 | caseps(){} |
| 255 | caselg(){} |
| 256 | casecs(){} |
| 257 | casebd(){} |
| 258 | casess(){} |
| 259 | getlg(i) |
| 260 | int i; |
| 261 | { |
| 262 | return(i); |
| 263 | } |