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1.1 ! root 1: # include "e.h" ! 2: #include "y.tab.h" ! 3: ! 4: #define TBLSIZE 100 ! 5: ! 6: tbl *keytbl[TBLSIZE]; /* key words */ ! 7: tbl *restbl[TBLSIZE]; /* reserved words */ ! 8: tbl *deftbl[TBLSIZE]; /* user-defined names */ ! 9: ! 10: struct { ! 11: char *key; ! 12: int keyval; ! 13: } keyword[] ={ ! 14: "sub", SUB, ! 15: "sup", SUP, ! 16: ".EN", DOTEN, ! 17: ".EQ", DOTEQ, ! 18: "from", FROM, ! 19: "to", TO, ! 20: "sum", SUM, ! 21: "hat", HAT, ! 22: "vec", VEC, ! 23: "dyad", DYAD, ! 24: "dot", DOT, ! 25: "dotdot", DOTDOT, ! 26: "bar", BAR, ! 27: "lowbar", LOWBAR, ! 28: "highbar", HIGHBAR, ! 29: "tilde", TILDE, ! 30: "utilde", UTILDE, ! 31: "under", UNDER, ! 32: "prod", PROD, ! 33: "int", INT, ! 34: "integral", INT, ! 35: "union", UNION, ! 36: "inter", INTER, ! 37: "matrix", MATRIX, ! 38: "col", COL, ! 39: "lcol", LCOL, ! 40: "ccol", CCOL, ! 41: "rcol", RCOL, ! 42: "pile", COL, /* synonyms ... */ ! 43: "lpile", LCOL, ! 44: "cpile", CCOL, ! 45: "rpile", RCOL, ! 46: "over", OVER, ! 47: "sqrt", SQRT, ! 48: "above", ABOVE, ! 49: "size", SIZE, ! 50: "font", FONT, ! 51: "fat", FAT, ! 52: "roman", ROMAN, ! 53: "italic", ITALIC, ! 54: "bold", BOLD, ! 55: "left", LEFT, ! 56: "right", RIGHT, ! 57: "delim", DELIM, ! 58: "define", DEFINE, ! 59: ! 60: #ifdef NEQN /* make ndefine synonym for define, tdefine a no-op */ ! 61: ! 62: "tdefine", TDEFINE, ! 63: "ndefine", DEFINE, ! 64: ! 65: #else /* tdefine = define, ndefine = no-op */ ! 66: ! 67: "tdefine", DEFINE, ! 68: "ndefine", NDEFINE, ! 69: ! 70: #endif ! 71: ! 72: "ifdef", IFDEF, ! 73: "gsize", GSIZE, ! 74: ".gsize", GSIZE, ! 75: "gfont", GFONT, ! 76: "include", INCLUDE, ! 77: "copy", INCLUDE, ! 78: "space", SPACE, ! 79: "up", UP, ! 80: "down", DOWN, ! 81: "fwd", FWD, ! 82: "back", BACK, ! 83: "mark", MARK, ! 84: "lineup", LINEUP, ! 85: 0, 0 ! 86: }; ! 87: ! 88: struct { ! 89: char *res; ! 90: char *resval; ! 91: } resword[] ={ ! 92: ">=", "\\(>=", ! 93: "<=", "\\(<=", ! 94: "==", "\\(==", ! 95: "!=", "\\(!=", ! 96: "+-", "\\(+-", ! 97: "->", "\\(->", ! 98: "<-", "\\(<-", ! 99: "inf", "\\(if", ! 100: "infinity", "\\(if", ! 101: "partial", "\\(pd", ! 102: "half", "\\f1\\(12\\fP", ! 103: "prime", "\\f1\\v'.5m'\\s+3\\(fm\\s-3\\v'-.5m'\\fP", ! 104: "dollar", "\\f1$\\fP", ! 105: "nothing", "", ! 106: "times", "\\(mu", ! 107: "del", "\\(gr", ! 108: "grad", "\\(gr", ! 109: ! 110: #ifdef NEQN ! 111: "<<", "<<", ! 112: ">>", ">>", ! 113: "approx", "~\b\\d~\\u", ! 114: "cdot", "\\v'-.5'.\\v'.5'", ! 115: "...", "...", ! 116: ",...,", ",...,", ! 117: #else ! 118: "<<", "<\\h'-.3m'<", ! 119: ">>", ">\\h'-.3m'>", ! 120: "approx", "\\v'-.2m'\\z\\(ap\\v'.25m'\\(ap\\v'-.05m'", ! 121: "cdot", "\\v'-.3m'.\\v'.3m'", ! 122: "...", "\\v'-.3m'\\ .\\ .\\ .\\ \\v'.3m'", ! 123: ",...,", "\\f1,\\fP\\ .\\ .\\ .\\ \\f1,\\fP\\|", ! 124: #endif ! 125: ! 126: "alpha", "\\(*a", ! 127: "beta", "\\(*b", ! 128: "gamma", "\\(*g", ! 129: "GAMMA", "\\(*G", ! 130: "delta", "\\(*d", ! 131: "DELTA", "\\(*D", ! 132: "epsilon", "\\(*e", ! 133: "EPSILON", "\\f1E\\fP", ! 134: "omega", "\\(*w", ! 135: "OMEGA", "\\(*W", ! 136: "lambda", "\\(*l", ! 137: "LAMBDA", "\\(*L", ! 138: "mu", "\\(*m", ! 139: "nu", "\\(*n", ! 140: "theta", "\\(*h", ! 141: "THETA", "\\(*H", ! 142: "phi", "\\(*f", ! 143: "PHI", "\\(*F", ! 144: "pi", "\\(*p", ! 145: "PI", "\\(*P", ! 146: "sigma", "\\(*s", ! 147: "SIGMA", "\\(*S", ! 148: "xi", "\\(*c", ! 149: "XI", "\\(*C", ! 150: "zeta", "\\(*z", ! 151: "iota", "\\(*i", ! 152: "eta", "\\(*y", ! 153: "kappa", "\\(*k", ! 154: "rho", "\\(*r", ! 155: "tau", "\\(*t", ! 156: "omicron", "\\(*o", ! 157: "upsilon", "\\(*u", ! 158: "UPSILON", "\\(*U", ! 159: "psi", "\\(*q", ! 160: "PSI", "\\(*Q", ! 161: "chi", "\\(*x", ! 162: "and", "\\f1and\\fP", ! 163: "for", "\\f1for\\fP", ! 164: "if", "\\f1if\\fP", ! 165: "Re", "\\f1Re\\fP", ! 166: "Im", "\\f1Im\\fP", ! 167: "sin", "\\f1sin\\fP", ! 168: "cos", "\\f1cos\\fP", ! 169: "tan", "\\f1tan\\fP", ! 170: "arc", "\\f1arc\\fP", ! 171: "sinh", "\\f1sinh\\fP", ! 172: "coth", "\\f1coth\\fP", ! 173: "tanh", "\\f1tanh\\fP", ! 174: "cosh", "\\f1cosh\\fP", ! 175: "lim", "\\f1lim\\fP", ! 176: "log", "\\f1log\\fP", ! 177: "max", "\\f1max\\fP", ! 178: "min", "\\f1min\\fP", ! 179: "ln", "\\f1ln\\fP", ! 180: "exp", "\\f1exp\\fP", ! 181: "det", "\\f1det\\fP", ! 182: 0, 0 ! 183: }; ! 184: ! 185: tbl *lookup(tblp, name, defn) /* find name in tbl. if defn non-null, install */ ! 186: tbl **tblp; ! 187: char *name, *defn; ! 188: { ! 189: register tbl *p; ! 190: register int h; ! 191: register char *s = name; ! 192: ! 193: for (h = 0; *s != '\0'; ) ! 194: h += *s++; ! 195: h %= TBLSIZE; ! 196: ! 197: for (p = tblp[h]; p != NULL; p = p->next) ! 198: if (strcmp(name, p->name) == 0) { /* found it */ ! 199: if (defn != NULL) ! 200: p->defn = defn; ! 201: return(p); ! 202: } ! 203: /* didn't find it */ ! 204: if (defn == NULL) ! 205: return(NULL); ! 206: p = (tbl *) malloc(sizeof (tbl)); ! 207: if (p == NULL) ! 208: error(FATAL, "out of space in lookup"); ! 209: p->name = name; ! 210: p->defn = defn; ! 211: p->next = tblp[h]; ! 212: tblp[h] = p; ! 213: return(p); ! 214: } ! 215: ! 216: init_tbl() /* initialize all tables */ ! 217: { ! 218: int i; ! 219: ! 220: for (i = 0; keyword[i].key != NULL; i++) ! 221: lookup(keytbl, keyword[i].key, keyword[i].keyval); ! 222: for (i = 0; resword[i].res != NULL; i++) ! 223: lookup(restbl, resword[i].res, resword[i].resval); ! 224: }
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