eqn/eqn.cc

   1 #if defined(__STDC__) || defined(__cplusplus)
   2 #define YYCONST const
   3 #define YYPARAMS(x) x
   4 #define YYDEFUN(name, arglist, args) name(args)
   5 #define YYAND ,
   6 #define YYPTR void *
   7 #else
   8 #define YYCONST
   9 #define YYPARAMS(x) ()
  10 #define YYDEFUN(name, arglist, args) name arglist args;
  11 #define YYAND ;
  12 #define YYPTR char *
  13 #endif
  14 #ifndef lint
  15 YYCONST static char yysccsid[] = "@(#)yaccpar   1.8 (Berkeley +Cygnus.28) 01/20/91";
  16 #endif
  17 #define YYBYACC 1
  18 #ifndef YYDONT_INCLUDE_STDIO
  19 #include <stdio.h>
  20 #endif
  21 #ifdef __cplusplus
  22 #include <stdlib.h> /* for malloc/realloc/free */
  23 #endif
  24 #line 20 "eqn.y"
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <stdlib.h>
  28
  29 #include "lib.h"
  30 #include "box.h"
  31 extern int non_empty_flag;
  32 char *strsave(const char *);
  33 int yylex();
  34 void yyerror(const char *);
  35 #line 32 "eqn.y"
  36 typedef union {
  37         char *str;
  38         box *b;
  39         pile_box *pb;
  40         matrix_box *mb;
  41         int n;
  42         column *col;
  43 } YYSTYPE;
  44 #line 45 "y.tab.c"
  45 #define OVER 257
  46 #define SMALLOVER 258
  47 #define SQRT 259
  48 #define SUB 260
  49 #define SUP 261
  50 #define LPILE 262
  51 #define RPILE 263
  52 #define CPILE 264
  53 #define PILE 265
  54 #define LEFT 266
  55 #define RIGHT 267
  56 #define TO 268
  57 #define FROM 269
  58 #define SIZE 270
  59 #define FONT 271
  60 #define ROMAN 272
  61 #define BOLD 273
  62 #define ITALIC 274
  63 #define FAT 275
  64 #define ACCENT 276
  65 #define BAR 277
  66 #define UNDER 278
  67 #define ABOVE 279
  68 #define TEXT 280
  69 #define QUOTED_TEXT 281
  70 #define FWD 282
  71 #define BACK 283
  72 #define DOWN 284
  73 #define UP 285
  74 #define MATRIX 286
  75 #define COL 287
  76 #define LCOL 288
  77 #define RCOL 289
  78 #define CCOL 290
  79 #define MARK 291
  80 #define LINEUP 292
  81 #define TYPE 293
  82 #define VCENTER 294
  83 #define PRIME 295
  84 #define SPLIT 296
  85 #define NOSPLIT 297
  86 #define UACCENT 298
  87 #define SPECIAL 299
  88 #define SPACE 300
  89 #define GFONT 301
  90 #define GSIZE 302
  91 #define DEFINE 303
  92 #define NDEFINE 304
  93 #define TDEFINE 305
  94 #define SDEFINE 306
  95 #define UNDEF 307
  96 #define IFDEF 308
  97 #define INCLUDE 309
  98 #define DELIM 310
  99 #define CHARTYPE 311
 100 #define SET 312
 101 #define GRFONT 313
 102 #define GBFONT 314
 103 #define YYERRCODE 256
 104 static YYCONST short yylhs[] = {                                        -1,
 105     0,    0,    6,    6,    1,    1,    1,    2,    2,    2,
 106     2,    2,    3,    3,    3,    3,    4,    4,    7,    7,
 107     7,    5,    5,    5,    5,    5,    5,    5,    5,    5,
 108     5,    5,    5,    5,    5,    5,    5,    5,    5,    5,
 109     5,    5,    5,    5,    5,    5,    5,    5,    5,    5,
 110     5,    5,    5,    5,    8,   11,   11,   12,   12,   13,
 111    13,   16,   16,   15,   15,   14,   14,   14,   14,    9,
 112     9,   10,   10,   10,
 113 };
 114 static YYCONST short yylen[] = {                                         2,
 115     0,    1,    1,    2,    1,    2,    2,    1,    3,    3,
 116     5,    5,    1,    2,    3,    3,    1,    3,    1,    3,
 117     5,    1,    1,    2,    2,    1,    1,    1,    3,    2,
 118     2,    2,    2,    4,    5,    3,    2,    2,    2,    3,
 119     3,    2,    2,    2,    2,    3,    3,    3,    3,    3,
 120     3,    3,    2,    3,    1,    1,    3,    3,    4,    1,
 121     2,    1,    3,    3,    4,    2,    2,    2,    2,    1,
 122     1,    1,    1,    1,
 123 };
 124 static YYCONST short yydefred[] = {                                      0,
 125     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 126     0,    0,   22,   23,    0,    0,    0,    0,    0,    0,
 127     0,    0,    0,    0,    0,    0,   26,   27,   28,    0,
 128     0,    3,    5,    0,   13,    0,    0,   17,   14,   70,
 129    71,    0,    0,   55,   31,   32,   33,   30,   73,   74,
 130    72,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 131     0,    0,    0,    6,    7,    0,    0,   24,   25,    0,
 132     0,    0,    0,    0,    0,    0,    0,    0,   37,   38,
 133    39,    0,    4,    0,    0,    0,    0,    0,    0,    0,
 134     0,    0,    0,    0,    0,    0,    0,    0,   60,    0,
 135     0,   29,   15,   16,    9,    0,    0,   20,   18,   40,
 136    41,    0,   58,    0,    0,    0,    0,   66,   67,   68,
 137    69,   34,   61,    0,    0,    0,    0,   59,   35,    0,
 138     0,    0,   11,   12,   21,    0,   64,    0,    0,   65,
 139 };
 140 static YYCONST short yydgoto[] = {                                      31,
 141    32,   33,   34,   35,   36,   84,   38,   43,   44,   52,
 142    85,   45,   98,   99,  118,  131,
 143 };
 144 static YYCONST short yysindex[] = {                                   1488,
 145  1527, -120, -120, -120, -120, -123, -249, -249, 1566, 1566,
 146  1566, 1566,    0,    0, -249, -249, -249, -249, -115, 1488,
 147  1488, -249, 1566, -256, -251, -249,    0,    0,    0, 1488,
 148     0,    0,    0, -221,    0, -233, 1488,    0,    0,    0,
 149     0, 1488,  -85,    0,    0,    0,    0,    0,    0,    0,
 150     0, 1488, 1566, 1566, -195, -195, -195, -195, 1566, 1566,
 151  1566, 1566, -272,    0,    0, 1566, -195,    0,    0, 1566,
 152  1402, 1527, 1527, 1527, 1527, 1566, 1566, 1566,    0,    0,
 153     0, 1566,    0, 1488, -113, 1488, 1444, -195, -195, -195,
 154  -195, -195, -195, -117, -117, -117, -117, -118,    0, -195,
 155  -195,    0,    0,    0,    0, -167, -189,    0,    0,    0,
 156     0, 1488,    0, -106, -123, 1488,  -83,    0,    0,    0,
 157     0,    0,    0, 1527, 1527, 1566, 1488,    0,    0, 1488,
 158  -105, 1488,    0,    0,    0, 1488,    0, -104, 1488,    0,
 159 };
 160 static YYCONST short yyrindex[] = {                                     41,
 161     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 162     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 163     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 164     0,    0,    0,    1,    0, 1220,   46,    0,    0,    0,
 165     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 166     0,    0,    0,    0,   85,  128,  363,  406,    0,    0,
 167     0,    0,    0,    0,    0,    0,  449,    0,    0,    0,
 168     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 169     0,    0,    0, -103,    0,    0,  185,  492,  727,  770,
 170   813,  856, 1091,    0,    0,    0,    0,    0,    0, 1134,
 171  1177,    0,    0,    0,    0,   42, 1220,    0,    0,    0,
 172     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 173     0,    0,    0,    0,    0,    0, -102,    0,    0, -101,
 174     0,    0,    0,    0,    0,    0,    0,    0,  -99,    0,
 175 };
 176 static YYCONST short yygindex[] = {                                      0,
 177    -7,  -69,    3,  -66,  458,    9,  -26,   52,   27,  -63,
 178   -32,   54,    0,  -35,    2,  -59,
 179 };
 180 #define YYTABLESIZE 1865
 181 static YYCONST short yytable[] = {                                      49,
 182     8,   50,   42,   39,  105,  116,  122,   63,   37,    8,
 183   109,  113,   64,   65,   94,   95,   96,   97,  128,  137,
 184   140,   56,   57,   62,   68,   63,   76,   77,   69,   83,
 185    40,   41,   51,   53,   54,   72,   73,   86,   71,  132,
 186     1,   10,   78,   79,   80,    2,   74,   75,   66,  108,
 187    10,  129,   70,  114,  133,  134,   46,   47,   48,  135,
 188    87,   81,  123,   83,   82,    0,   59,   60,   61,   62,
 189    76,  126,  138,    0,  103,  104,   83,  106,    0,   83,
 190    78,   79,   80,    0,   42,    0,   78,   79,   80,   72,
 191    73,    0,    0,   42,    8,    0,  119,  120,  121,   81,
 192   124,  125,   82,    0,    0,   81,    0,    0,   82,    0,
 193     0,    0,    0,    0,    0,    0,    0,    0,    0,   83,
 194   127,    0,   83,    8,  130,    8,    8,   43,    0,    0,
 195     0,   83,    0,    0,    0,   10,   43,    0,    0,    0,
 196   130,   51,    0,    0,  139,  117,  117,  117,  117,    0,
 197     0,    0,    0,    0,    0,    0,   40,   41,    0,   40,
 198    41,    0,   40,   41,   10,  112,   10,   10,   94,   95,
 199    96,   97,  112,  136,  136,   56,   57,   62,   42,   63,
 200     0,    0,    0,    0,   36,    0,    0,    0,    0,    0,
 201     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 202     0,    0,    0,    0,    0,    0,    0,   42,    0,   42,
 203    42,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 204     0,   43,    0,    0,    0,    0,    0,    0,    0,    0,
 205     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 206     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 207    43,    0,   43,   43,    0,    0,    0,    0,    0,    8,
 208     8,    8,    8,    8,    8,    8,    8,    8,    0,    0,
 209     8,    8,    8,    8,    8,    8,    8,    8,    8,    8,
 210     8,    8,    8,    8,    8,    8,    8,    0,    0,    0,
 211     0,    8,    8,    8,    8,    8,    8,    8,    8,    8,
 212    10,   10,   10,   10,   10,   10,   10,   10,   10,   36,
 213     0,   10,   10,   10,   10,   10,   10,   10,   10,   10,
 214    10,   10,   10,   10,   10,   10,   10,   10,    0,    0,
 215     0,    0,   10,   10,   10,   10,   10,   10,   10,   10,
 216    10,   42,   42,   42,   42,   42,   42,   42,   42,   42,
 217    42,   42,   42,   42,   42,   42,   42,   42,   42,   42,
 218     0,    0,   44,   42,   42,   42,   42,   42,   42,   42,
 219    42,   44,    0,    0,    0,   42,   42,   42,   42,    0,
 220    42,   42,    0,   42,   43,   43,   43,   43,   43,   43,
 221    43,   43,   43,   43,   43,   43,   43,   43,   43,   43,
 222    43,   43,   43,    0,    0,   45,   43,   43,   43,   43,
 223    43,   43,   43,   43,   45,    0,    0,    0,   43,   43,
 224    43,   43,    0,   43,   43,    0,   43,    0,    0,    0,
 225     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 226     0,   36,   36,    0,   36,   36,    0,    0,   53,    0,
 227     0,    0,   36,   36,    0,    0,   44,   53,    0,    0,
 228    36,   36,   36,   36,    0,    0,   55,   56,   57,   58,
 229     0,    0,    0,    0,    0,    0,    0,    0,    0,   36,
 230    67,    0,   36,    0,    0,   44,    0,   44,   44,    0,
 231     0,   47,    0,    0,    0,    0,    0,    0,    0,   45,
 232    47,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 233    88,   89,    0,    0,    0,    0,   90,   91,   92,   93,
 234     0,    0,    0,  100,    0,    0,    0,  101,   45,    0,
 235    45,   45,    0,  107,    0,  110,    0,    0,    0,  111,
 236     0,    0,   53,    0,    0,    0,    0,    0,    0,    0,
 237     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 238     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 239     0,   53,    0,   53,   53,    0,    0,    0,    0,    0,
 240     0,    0,    0,    0,    0,   47,    0,    0,    0,    0,
 241     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 242     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 243     0,    0,    0,    0,   47,    0,   47,   47,    0,   44,
 244    44,   44,   44,   44,   44,   44,   44,   44,   44,   44,
 245    44,   44,   44,   44,   44,   44,   44,   44,    0,    0,
 246     0,   44,   44,   44,   44,   44,   44,   44,   44,    0,
 247     0,    0,    0,   44,   44,   44,   44,    0,   44,   44,
 248     0,   44,   45,   45,   45,   45,   45,   45,   45,   45,
 249    45,   45,   45,   45,   45,   45,   45,   45,   45,   45,
 250    45,    0,    0,    0,   45,   45,   45,   45,   45,   45,
 251    45,   45,    0,    0,    0,    0,   45,   45,   45,   45,
 252     0,   45,   45,    0,   45,   53,   53,   53,   53,   53,
 253    53,   53,   53,   53,   53,   53,   53,   53,   53,   53,
 254    53,   53,   53,   53,    0,    0,   46,   53,   53,   53,
 255    53,   53,   53,   53,   53,   46,    0,    0,    0,   53,
 256    53,   53,   53,    0,   53,   53,    0,   53,   47,   47,
 257    47,   47,   47,   47,   47,   47,   47,   47,   47,   47,
 258    47,   47,   47,   47,   47,   47,   47,    0,    0,   48,
 259    47,   47,   47,   47,   47,   47,   47,   47,   48,    0,
 260     0,    0,   47,   47,   47,   47,    0,   47,   47,    0,
 261    47,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 262     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 263     0,    0,   49,    0,    0,    0,    0,    0,    0,    0,
 264    46,   49,    0,    0,    0,    0,    0,    0,    0,    0,
 265     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 266     0,    0,    0,    0,    0,    0,    0,    0,    0,   46,
 267     0,   46,   46,    0,    0,   51,    0,    0,    0,    0,
 268     0,    0,    0,   48,   51,    0,    0,    0,    0,    0,
 269     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 270     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 271     0,    0,   48,    0,   48,   48,    0,    0,    0,    0,
 272     0,    0,    0,    0,    0,    0,   49,    0,    0,    0,
 273     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 274     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 275     0,    0,    0,    0,    0,   49,    0,   49,   49,    0,
 276     0,    0,    0,    0,    0,    0,    0,    0,    0,   51,
 277     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 278     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 279     0,    0,    0,    0,    0,    0,    0,    0,   51,    0,
 280    51,   51,    0,   46,   46,   46,   46,   46,   46,   46,
 281    46,   46,   46,   46,   46,   46,   46,   46,   46,   46,
 282    46,   46,    0,    0,    0,   46,   46,   46,   46,   46,
 283    46,   46,   46,    0,    0,    0,    0,   46,   46,   46,
 284    46,    0,   46,   46,    0,   46,   48,   48,   48,   48,
 285    48,   48,   48,   48,   48,   48,   48,   48,   48,   48,
 286    48,   48,   48,   48,   48,    0,    0,    0,   48,   48,
 287    48,   48,   48,   48,   48,   48,    0,    0,    0,    0,
 288    48,   48,   48,   48,    0,   48,   48,    0,   48,   49,
 289    49,   49,   49,   49,   49,   49,   49,   49,   49,   49,
 290    49,   49,   49,   49,   49,   49,   49,   49,    0,    0,
 291    50,   49,   49,   49,   49,   49,   49,   49,   49,   50,
 292     0,    0,    0,   49,   49,   49,   49,    0,   49,   49,
 293     0,   49,   51,   51,   51,   51,   51,   51,   51,   51,
 294    51,   51,   51,   51,   51,   51,   51,   51,   51,   51,
 295    51,    0,    0,   52,   51,   51,   51,   51,   51,   51,
 296    51,   51,   52,    0,    0,    0,   51,   51,   51,   51,
 297     0,   51,   51,    0,   51,    0,    0,    0,    0,    0,
 298     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 299     0,    0,    0,    0,    0,    0,   54,    0,    0,    0,
 300     0,    0,    0,    0,   50,   54,    0,    0,    0,    0,
 301     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 302     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 303     0,    0,    0,   50,    0,   50,   50,    0,    0,   19,
 304     0,    0,    0,    0,    0,    0,    0,   52,   19,    0,
 305     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 306     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 307     0,    0,    0,    0,    0,    0,   52,    0,   52,   52,
 308     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 309    54,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 310     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 311     0,    0,    0,    0,    0,    0,    0,    0,    0,   54,
 312     0,   54,   54,    0,    0,    0,    0,    0,    0,    0,
 313     0,    0,    0,   19,    0,    0,    0,    0,    0,    0,
 314     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 315     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 316     0,    0,   19,    0,   19,   19,    0,   50,   50,   50,
 317    50,   50,   50,   50,   50,   50,   50,   50,   50,   50,
 318    50,   50,   50,   50,   50,   50,    0,    0,    0,   50,
 319    50,   50,   50,   50,   50,   50,   50,    0,    0,    0,
 320     0,   50,   50,   50,   50,    0,   50,   50,    0,   50,
 321    52,   52,   52,   52,   52,   52,   52,   52,   52,   52,
 322    52,   52,   52,   52,   52,   52,   52,   52,   52,    0,
 323    29,    0,   52,   52,   52,   52,   52,   52,   52,   52,
 324     0,    0,    0,    0,   52,   52,   52,   52,    0,   52,
 325    52,    0,   52,   54,   54,   54,   54,   54,   54,   54,
 326    54,   54,   54,   54,   54,   54,   54,   54,   54,   54,
 327    54,   54,   29,    0,    0,   54,   54,   54,   54,   54,
 328    54,   54,   54,    0,    0,    0,    0,   54,   54,   54,
 329    54,    0,   54,   54,    0,   54,   19,   19,   19,    0,
 330     0,   19,   19,   19,   19,   19,   19,   19,   19,   19,
 331    19,   19,   19,   19,   19,   27,   29,    0,   19,   19,
 332    19,   19,   19,   19,   19,   19,    0,    0,    0,    0,
 333    19,   19,   19,   19,    0,   19,   19,    0,   19,    0,
 334     0,    0,    0,    0,   30,    0,  102,   28,    0,    0,
 335     0,    0,    0,    0,    0,   29,    0,   27,    0,    0,
 336     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 337     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 338     0,    0,    0,    0,    0,    0,   30,    0,    0,   28,
 339     0,    0,    0,    0,   29,    0,    0,    0,    0,    0,
 340     0,   27,    0,    0,    0,    0,    0,    0,    0,    0,
 341     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 342     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 343    30,    0,    0,   28,    0,    0,    0,    0,    0,    0,
 344    27,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 345     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
 346     0,    0,    0,    0,    0,    0,    0,    0,    0,   30,
 347     0,    0,   28,    0,    0,    0,    0,    0,    0,   27,
 348     1,    0,    0,    2,    3,    4,    5,    6,    0,    0,
 349     0,    7,    8,    9,   10,   11,   12,    0,    0,    0,
 350     0,   13,   14,   15,   16,   17,   18,   19,   30,    0,
 351     0,   28,   20,   21,   22,   23,    0,   24,   25,    0,
 352    26,    0,    1,    0,    0,    2,    3,    4,    5,    6,
 353   115,    0,    0,    7,    8,    9,   10,   11,   12,    0,
 354     0,    0,    0,   13,   14,   15,   16,   17,   18,   19,
 355     0,    0,    0,    0,   20,   21,   22,   23,    0,   24,
 356    25,    0,   26,    0,    0,    0,    1,    0,    0,    2,
 357     3,    4,    5,    6,    0,    0,    0,    7,    8,    9,
 358    10,   11,   12,    0,    0,    0,    0,   13,   14,   15,
 359    16,   17,   18,   19,    0,    0,    0,    0,   20,   21,
 360    22,   23,    0,   24,   25,    1,   26,    0,    2,    3,
 361     4,    5,    6,    0,    0,    0,    7,    8,    9,   10,
 362    11,   12,    0,    0,    0,    0,   13,   14,   15,   16,
 363    17,   18,   19,    0,    0,    0,    0,    0,    0,   22,
 364    23,    0,   24,   25,    0,   26,    0,    2,    3,    4,
 365     5,    6,    0,    0,    0,    7,    8,    9,   10,   11,
 366    12,    0,    0,    0,    0,   13,   14,   15,   16,   17,
 367    18,   19,    0,    0,    0,    0,    0,    0,   22,   23,
 368     0,   24,   25,    0,   26,
 369 };
 370 static YYCONST short yycheck[] = {                                     123,
 371     0,  125,  123,    1,   74,  123,  125,  123,    0,    9,
 372    77,  125,   20,   21,  287,  288,  289,  290,  125,  125,
 373   125,  125,  125,  125,  281,  125,  260,  261,  280,   37,
 374   280,  281,    6,    7,    8,  257,  258,  123,   30,  123,
 375     0,    0,  276,  277,  278,    0,  268,  269,   22,   76,
 376     9,  115,   26,   86,  124,  125,    3,    4,    5,  126,
 377    52,  295,   98,   71,  298,   -1,   15,   16,   17,   18,
 378   260,  261,  132,   -1,   72,   73,   84,   75,   -1,   87,
 379   276,  277,  278,   -1,    0,   -1,  276,  277,  278,  257,
 380   258,   -1,   -1,    9,   94,   -1,   95,   96,   97,  295,
 381   268,  269,  298,   -1,   -1,  295,   -1,   -1,  298,   -1,
 382    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,  127,
 383   112,   -1,  130,  123,  116,  125,  126,    0,   -1,   -1,
 384    -1,  139,   -1,   -1,   -1,   94,    9,   -1,   -1,   -1,
 385   132,  115,   -1,   -1,  136,   94,   95,   96,   97,   -1,
 386    -1,   -1,   -1,   -1,   -1,   -1,  280,  281,   -1,  280,
 387   281,   -1,  280,  281,  123,  279,  125,  126,  287,  288,
 388   289,  290,  279,  279,  279,  279,  279,  279,   94,  279,
 389    -1,   -1,   -1,   -1,    0,   -1,   -1,   -1,   -1,   -1,
 390    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 391    -1,   -1,   -1,   -1,   -1,   -1,   -1,  123,   -1,  125,
 392   126,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 393    -1,   94,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 394    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 395    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 396   123,   -1,  125,  126,   -1,   -1,   -1,   -1,   -1,  259,
 397   260,  261,  262,  263,  264,  265,  266,  267,   -1,   -1,
 398   270,  271,  272,  273,  274,  275,  276,  277,  278,  279,
 399   280,  281,  282,  283,  284,  285,  286,   -1,   -1,   -1,
 400    -1,  291,  292,  293,  294,  295,  296,  297,  298,  299,
 401   259,  260,  261,  262,  263,  264,  265,  266,  267,  125,
 402    -1,  270,  271,  272,  273,  274,  275,  276,  277,  278,
 403   279,  280,  281,  282,  283,  284,  285,  286,   -1,   -1,
 404    -1,   -1,  291,  292,  293,  294,  295,  296,  297,  298,
 405   299,  257,  258,  259,  260,  261,  262,  263,  264,  265,
 406   266,  267,  268,  269,  270,  271,  272,  273,  274,  275,
 407    -1,   -1,    0,  279,  280,  281,  282,  283,  284,  285,
 408   286,    9,   -1,   -1,   -1,  291,  292,  293,  294,   -1,
 409   296,  297,   -1,  299,  257,  258,  259,  260,  261,  262,
 410   263,  264,  265,  266,  267,  268,  269,  270,  271,  272,
 411   273,  274,  275,   -1,   -1,    0,  279,  280,  281,  282,
 412   283,  284,  285,  286,    9,   -1,   -1,   -1,  291,  292,
 413   293,  294,   -1,  296,  297,   -1,  299,   -1,   -1,   -1,
 414    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 415    -1,  257,  258,   -1,  260,  261,   -1,   -1,    0,   -1,
 416    -1,   -1,  268,  269,   -1,   -1,   94,    9,   -1,   -1,
 417   276,  277,  278,  279,   -1,   -1,    9,   10,   11,   12,
 418    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,  295,
 419    23,   -1,  298,   -1,   -1,  123,   -1,  125,  126,   -1,
 420    -1,    0,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   94,
 421     9,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 422    53,   54,   -1,   -1,   -1,   -1,   59,   60,   61,   62,
 423    -1,   -1,   -1,   66,   -1,   -1,   -1,   70,  123,   -1,
 424   125,  126,   -1,   76,   -1,   78,   -1,   -1,   -1,   82,
 425    -1,   -1,   94,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 426    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 427    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 428    -1,  123,   -1,  125,  126,   -1,   -1,   -1,   -1,   -1,
 429    -1,   -1,   -1,   -1,   -1,   94,   -1,   -1,   -1,   -1,
 430    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 431    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 432    -1,   -1,   -1,   -1,  123,   -1,  125,  126,   -1,  257,
 433   258,  259,  260,  261,  262,  263,  264,  265,  266,  267,
 434   268,  269,  270,  271,  272,  273,  274,  275,   -1,   -1,
 435    -1,  279,  280,  281,  282,  283,  284,  285,  286,   -1,
 436    -1,   -1,   -1,  291,  292,  293,  294,   -1,  296,  297,
 437    -1,  299,  257,  258,  259,  260,  261,  262,  263,  264,
 438   265,  266,  267,  268,  269,  270,  271,  272,  273,  274,
 439   275,   -1,   -1,   -1,  279,  280,  281,  282,  283,  284,
 440   285,  286,   -1,   -1,   -1,   -1,  291,  292,  293,  294,
 441    -1,  296,  297,   -1,  299,  257,  258,  259,  260,  261,
 442   262,  263,  264,  265,  266,  267,  268,  269,  270,  271,
 443   272,  273,  274,  275,   -1,   -1,    0,  279,  280,  281,
 444   282,  283,  284,  285,  286,    9,   -1,   -1,   -1,  291,
 445   292,  293,  294,   -1,  296,  297,   -1,  299,  257,  258,
 446   259,  260,  261,  262,  263,  264,  265,  266,  267,  268,
 447   269,  270,  271,  272,  273,  274,  275,   -1,   -1,    0,
 448   279,  280,  281,  282,  283,  284,  285,  286,    9,   -1,
 449    -1,   -1,  291,  292,  293,  294,   -1,  296,  297,   -1,
 450   299,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 451    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 452    -1,   -1,    0,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 453    94,    9,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 454    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 455    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,  123,
 456    -1,  125,  126,   -1,   -1,    0,   -1,   -1,   -1,   -1,
 457    -1,   -1,   -1,   94,    9,   -1,   -1,   -1,   -1,   -1,
 458    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 459    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 460    -1,   -1,  123,   -1,  125,  126,   -1,   -1,   -1,   -1,
 461    -1,   -1,   -1,   -1,   -1,   -1,   94,   -1,   -1,   -1,
 462    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 463    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 464    -1,   -1,   -1,   -1,   -1,  123,   -1,  125,  126,   -1,
 465    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   94,
 466    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 467    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 468    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,  123,   -1,
 469   125,  126,   -1,  257,  258,  259,  260,  261,  262,  263,
 470   264,  265,  266,  267,  268,  269,  270,  271,  272,  273,
 471   274,  275,   -1,   -1,   -1,  279,  280,  281,  282,  283,
 472   284,  285,  286,   -1,   -1,   -1,   -1,  291,  292,  293,
 473   294,   -1,  296,  297,   -1,  299,  257,  258,  259,  260,
 474   261,  262,  263,  264,  265,  266,  267,  268,  269,  270,
 475   271,  272,  273,  274,  275,   -1,   -1,   -1,  279,  280,
 476   281,  282,  283,  284,  285,  286,   -1,   -1,   -1,   -1,
 477   291,  292,  293,  294,   -1,  296,  297,   -1,  299,  257,
 478   258,  259,  260,  261,  262,  263,  264,  265,  266,  267,
 479   268,  269,  270,  271,  272,  273,  274,  275,   -1,   -1,
 480     0,  279,  280,  281,  282,  283,  284,  285,  286,    9,
 481    -1,   -1,   -1,  291,  292,  293,  294,   -1,  296,  297,
 482    -1,  299,  257,  258,  259,  260,  261,  262,  263,  264,
 483   265,  266,  267,  268,  269,  270,  271,  272,  273,  274,
 484   275,   -1,   -1,    0,  279,  280,  281,  282,  283,  284,
 485   285,  286,    9,   -1,   -1,   -1,  291,  292,  293,  294,
 486    -1,  296,  297,   -1,  299,   -1,   -1,   -1,   -1,   -1,
 487    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 488    -1,   -1,   -1,   -1,   -1,   -1,    0,   -1,   -1,   -1,
 489    -1,   -1,   -1,   -1,   94,    9,   -1,   -1,   -1,   -1,
 490    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 491    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 492    -1,   -1,   -1,  123,   -1,  125,  126,   -1,   -1,    0,
 493    -1,   -1,   -1,   -1,   -1,   -1,   -1,   94,    9,   -1,
 494    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 495    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 496    -1,   -1,   -1,   -1,   -1,   -1,  123,   -1,  125,  126,
 497    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 498    94,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 499    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 500    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,  123,
 501    -1,  125,  126,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 502    -1,   -1,   -1,   94,   -1,   -1,   -1,   -1,   -1,   -1,
 503    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 504    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 505    -1,   -1,  123,   -1,  125,  126,   -1,  257,  258,  259,
 506   260,  261,  262,  263,  264,  265,  266,  267,  268,  269,
 507   270,  271,  272,  273,  274,  275,   -1,   -1,   -1,  279,
 508   280,  281,  282,  283,  284,  285,  286,   -1,   -1,   -1,
 509    -1,  291,  292,  293,  294,   -1,  296,  297,   -1,  299,
 510   257,  258,  259,  260,  261,  262,  263,  264,  265,  266,
 511   267,  268,  269,  270,  271,  272,  273,  274,  275,   -1,
 512     9,   -1,  279,  280,  281,  282,  283,  284,  285,  286,
 513    -1,   -1,   -1,   -1,  291,  292,  293,  294,   -1,  296,
 514   297,   -1,  299,  257,  258,  259,  260,  261,  262,  263,
 515   264,  265,  266,  267,  268,  269,  270,  271,  272,  273,
 516   274,  275,    9,   -1,   -1,  279,  280,  281,  282,  283,
 517   284,  285,  286,   -1,   -1,   -1,   -1,  291,  292,  293,
 518   294,   -1,  296,  297,   -1,  299,  257,  258,  259,   -1,
 519    -1,  262,  263,  264,  265,  266,  267,  268,  269,  270,
 520   271,  272,  273,  274,  275,   94,    9,   -1,  279,  280,
 521   281,  282,  283,  284,  285,  286,   -1,   -1,   -1,   -1,
 522   291,  292,  293,  294,   -1,  296,  297,   -1,  299,   -1,
 523    -1,   -1,   -1,   -1,  123,   -1,  125,  126,   -1,   -1,
 524    -1,   -1,   -1,   -1,   -1,    9,   -1,   94,   -1,   -1,
 525    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 526    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 527    -1,   -1,   -1,   -1,   -1,   -1,  123,   -1,   -1,  126,
 528    -1,   -1,   -1,   -1,    9,   -1,   -1,   -1,   -1,   -1,
 529    -1,   94,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 530    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 531    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 532   123,   -1,   -1,  126,   -1,   -1,   -1,   -1,   -1,   -1,
 533    94,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 534    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
 535    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,  123,
 536    -1,   -1,  126,   -1,   -1,   -1,   -1,   -1,   -1,   94,
 537   259,   -1,   -1,  262,  263,  264,  265,  266,   -1,   -1,
 538    -1,  270,  271,  272,  273,  274,  275,   -1,   -1,   -1,
 539    -1,  280,  281,  282,  283,  284,  285,  286,  123,   -1,
 540    -1,  126,  291,  292,  293,  294,   -1,  296,  297,   -1,
 541   299,   -1,  259,   -1,   -1,  262,  263,  264,  265,  266,
 542   267,   -1,   -1,  270,  271,  272,  273,  274,  275,   -1,
 543    -1,   -1,   -1,  280,  281,  282,  283,  284,  285,  286,
 544    -1,   -1,   -1,   -1,  291,  292,  293,  294,   -1,  296,
 545   297,   -1,  299,   -1,   -1,   -1,  259,   -1,   -1,  262,
 546   263,  264,  265,  266,   -1,   -1,   -1,  270,  271,  272,
 547   273,  274,  275,   -1,   -1,   -1,   -1,  280,  281,  282,
 548   283,  284,  285,  286,   -1,   -1,   -1,   -1,  291,  292,
 549   293,  294,   -1,  296,  297,  259,  299,   -1,  262,  263,
 550   264,  265,  266,   -1,   -1,   -1,  270,  271,  272,  273,
 551   274,  275,   -1,   -1,   -1,   -1,  280,  281,  282,  283,
 552   284,  285,  286,   -1,   -1,   -1,   -1,   -1,   -1,  293,
 553   294,   -1,  296,  297,   -1,  299,   -1,  262,  263,  264,
 554   265,  266,   -1,   -1,   -1,  270,  271,  272,  273,  274,
 555   275,   -1,   -1,   -1,   -1,  280,  281,  282,  283,  284,
 556   285,  286,   -1,   -1,   -1,   -1,   -1,   -1,  293,  294,
 557    -1,  296,  297,   -1,  299,
 558 };
 559 #define YYFINAL 31
 560 #ifndef YYDEBUG
 561 #define YYDEBUG 0
 562 #endif
 563 #define YYMAXTOKEN 314
 564 #if YYDEBUG
 565 static YYCONST char *YYCONST yyname[] = {
 566 "end-of-file",0,0,0,0,0,0,0,0,"'\\t'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 567 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 568 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'^'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 569 0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'","'~'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 570 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 571 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 572 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"OVER",
 573 "SMALLOVER","SQRT","SUB","SUP","LPILE","RPILE","CPILE","PILE","LEFT","RIGHT",
 574 "TO","FROM","SIZE","FONT","ROMAN","BOLD","ITALIC","FAT","ACCENT","BAR","UNDER",
 575 "ABOVE","TEXT","QUOTED_TEXT","FWD","BACK","DOWN","UP","MATRIX","COL","LCOL",
 576 "RCOL","CCOL","MARK","LINEUP","TYPE","VCENTER","PRIME","SPLIT","NOSPLIT",
 577 "UACCENT","SPECIAL","SPACE","GFONT","GSIZE","DEFINE","NDEFINE","TDEFINE",
 578 "SDEFINE","UNDEF","IFDEF","INCLUDE","DELIM","CHARTYPE","SET","GRFONT","GBFONT",
 579 };
 580 static YYCONST char *YYCONST yyrule[] = {
 581 "$accept : top",
 582 "top :",
 583 "top : equation",
 584 "equation : mark",
 585 "equation : equation mark",
 586 "mark : from_to",
 587 "mark : MARK mark",
 588 "mark : LINEUP mark",
 589 "from_to : sqrt_over",
 590 "from_to : sqrt_over TO from_to",
 591 "from_to : sqrt_over FROM sqrt_over",
 592 "from_to : sqrt_over FROM sqrt_over TO from_to",
 593 "from_to : sqrt_over FROM sqrt_over FROM from_to",
 594 "sqrt_over : script",
 595 "sqrt_over : SQRT sqrt_over",
 596 "sqrt_over : sqrt_over OVER sqrt_over",
 597 "sqrt_over : sqrt_over SMALLOVER sqrt_over",
 598 "script : nonsup",
 599 "script : simple SUP script",
 600 "nonsup : simple",
 601 "nonsup : simple SUB nonsup",
 602 "nonsup : simple SUB simple SUP script",
 603 "simple : TEXT",
 604 "simple : QUOTED_TEXT",
 605 "simple : SPLIT QUOTED_TEXT",
 606 "simple : NOSPLIT TEXT",
 607 "simple : '^'",
 608 "simple : '~'",
 609 "simple : '\\t'",
 610 "simple : '{' equation '}'",
 611 "simple : PILE pile_arg",
 612 "simple : LPILE pile_arg",
 613 "simple : RPILE pile_arg",
 614 "simple : CPILE pile_arg",
 615 "simple : MATRIX '{' column_list '}'",
 616 "simple : LEFT delim equation RIGHT delim",
 617 "simple : LEFT delim equation",
 618 "simple : simple BAR",
 619 "simple : simple UNDER",
 620 "simple : simple PRIME",
 621 "simple : simple ACCENT simple",
 622 "simple : simple UACCENT simple",
 623 "simple : ROMAN simple",
 624 "simple : BOLD simple",
 625 "simple : ITALIC simple",
 626 "simple : FAT simple",
 627 "simple : FONT text simple",
 628 "simple : SIZE text simple",
 629 "simple : FWD number simple",
 630 "simple : BACK number simple",
 631 "simple : UP number simple",
 632 "simple : DOWN number simple",
 633 "simple : TYPE text simple",
 634 "simple : VCENTER simple",
 635 "simple : SPECIAL text simple",
 636 "number : text",
 637 "pile_element_list : equation",
 638 "pile_element_list : pile_element_list ABOVE equation",
 639 "pile_arg : '{' pile_element_list '}'",
 640 "pile_arg : number '{' pile_element_list '}'",
 641 "column_list : column",
 642 "column_list : column_list column",
 643 "column_element_list : equation",
 644 "column_element_list : column_element_list ABOVE equation",
 645 "column_arg : '{' column_element_list '}'",
 646 "column_arg : number '{' column_element_list '}'",
 647 "column : COL column_arg",
 648 "column : LCOL column_arg",
 649 "column : RCOL column_arg",
 650 "column : CCOL column_arg",
 651 "text : TEXT",
 652 "text : QUOTED_TEXT",
 653 "delim : text",
 654 "delim : '{'",
 655 "delim : '}'",
 656 };
 657 #endif
 658 #define YYLEX yylex()
 659 #define YYEMPTY -1
 660 #define yyclearin (yychar=(YYEMPTY))
 661 #define yyerrok (yyerrflag=0)
 662 #ifndef YYINITDEPTH
 663 #define YYINITDEPTH 200
 664 #endif
 665 #ifdef YYSTACKSIZE
 666 #undef YYMAXDEPTH
 667 #define YYMAXDEPTH YYSTACKSIZE
 668 #else
 669 #ifdef YYMAXDEPTH
 670 #define YYSTACKSIZE YYMAXDEPTH
 671 #else
 672 #define YYSTACKSIZE 10000
 673 #define YYMAXDEPTH 10000
 674 #endif
 675 #endif
 676 int yydebug;
 677 int yynerrs;
 678 int yyerrflag;
 679 int yychar;
 680 YYSTYPE yyval;
 681 YYSTYPE yylval;
 682 static short *yyss;
 683 static YYSTYPE *yyvs;
 684 static int yystacksize;
 685 static int yygrow ();
 686 static YYPTR yymalloc YYPARAMS((unsigned));
 687 static YYPTR yyrealloc YYPARAMS((YYPTR, unsigned));
 688 #define yyfree(x) free(x)
 689 #define YYABORT goto yyabort
 690 #define YYACCEPT goto yyaccept
 691 #define YYERROR goto yyerrlab
 692
 693 #if YYDEBUG
 694 #ifdef __cplusplus
 695 extern "C" char *getenv();
 696 #else
 697 extern char *getenv();
 698 #endif
 699 #endif
 700
 701 int
 702 yyparse()
 703 {
 704     register int yym, yyn, yystate;
 705     register YYSTYPE *yyvsp;
 706     register short *yyssp;
 707     short *yysse;
 708 #if YYDEBUG
 709     register YYCONST char *yys;
 710
 711     if (yys = getenv("YYDEBUG"))
 712     {
 713         yyn = *yys;
 714         if (yyn >= '0' && yyn <= '9')
 715             yydebug = yyn - '0';
 716     }
 717 #endif
 718
 719     yynerrs = 0;
 720     yyerrflag = 0;
 721     yychar = (-1);
 722
 723     if (yyss == 0)
 724     {
 725         yyss = (short *) yymalloc (YYINITDEPTH * sizeof (short));
 726         if (yyss == 0)
 727           goto yyabort;
 728         yyvs = (YYSTYPE *) yymalloc (YYINITDEPTH * sizeof (YYSTYPE));
 729         if (yyvs == 0)
 730         {
 731             yyfree (yyss);
 732             goto yyabort;
 733         }
 734         yystacksize = YYINITDEPTH;
 735     }
 736     yysse = yyss + yystacksize - 1;
 737     yyssp = yyss;
 738     yyvsp = yyvs;
 739     *yyssp = yystate = 0;
 740
 741 yyloop:
 742     if (yyn = yydefred[yystate]) goto yyreduce;
 743     if (yychar < 0)
 744     {
 745         if ((yychar = yylex()) < 0) yychar = 0;
 746 #if YYDEBUG
 747         if (yydebug)
 748         {
 749             yys = 0;
 750             if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
 751             if (!yys) yys = "illegal-symbol";
 752             printf("yydebug: state %d, reading %d (%s)\n", yystate,
 753                     yychar, yys);
 754         }
 755 #endif
 756     }
 757     if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
 758             yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
 759     {
 760 #if YYDEBUG
 761         if (yydebug)
 762             printf("yydebug: state %d, shifting to state %d\n",
 763                     yystate, yytable[yyn]);
 764 #endif
 765         if (yyssp >= yysse)
 766         {
 767             /* FIXME: Rework so there's only one of these.  */
 768             int depth = yyssp - yyss;
 769             if (yygrow () != 0)
 770               goto yyoverflow;
 771             yysse = yyss + yystacksize - 1;
 772             yyssp = yyss + depth;
 773             yyvsp = yyvs + depth;
 774         }
 775         *++yyssp = yystate = yytable[yyn];
 776         *++yyvsp = yylval;
 777         yychar = (-1);
 778         if (yyerrflag > 0)  --yyerrflag;
 779         goto yyloop;
 780     }
 781     if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
 782             yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
 783     {
 784         yyn = yytable[yyn];
 785         goto yyreduce;
 786     }
 787     if (yyerrflag) goto yyinrecovery;
 788 #ifdef lint
 789     goto yynewerror;
 790 #endif
 791 yynewerror:
 792     yyerror("syntax error");
 793 #ifdef lint
 794     goto yyerrlab;
 795 #endif
 796 yyerrlab:
 797     ++yynerrs;
 798 yyinrecovery:
 799     if (yyerrflag < 3)
 800     {
 801         yyerrflag = 3;
 802         for (;;)
 803         {
 804             if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
 805                     yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
 806             {
 807 #if YYDEBUG
 808                 if (yydebug)
 809                     printf("yydebug: state %d, error recovery shifting\
 810  to state %d\n", *yyssp, yytable[yyn]);
 811 #endif
 812                 if (yyssp >= yysse)
 813                 {
 814                     int depth = yyssp - yyss;
 815                     if (yygrow () != 0)
 816                       goto yyoverflow;
 817                     yysse = yyss + yystacksize - 1;
 818                     yyssp = yyss + depth;
 819                     yyvsp = yyvs + depth;
 820                 }
 821                 *++yyssp = yystate = yytable[yyn];
 822                 *++yyvsp = yylval;
 823                 goto yyloop;
 824             }
 825             else
 826             {
 827 #if YYDEBUG
 828                 if (yydebug)
 829                     printf("yydebug: error recovery discarding state %d\n",
 830                             *yyssp);
 831 #endif
 832                 if (yyssp <= yyss) goto yyabort;
 833                 --yyssp;
 834                 --yyvsp;
 835             }
 836         }
 837     }
 838     else
 839     {
 840         if (yychar == 0) goto yyabort;
 841 #if YYDEBUG
 842         if (yydebug)
 843         {
 844             yys = 0;
 845             if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
 846             if (!yys) yys = "illegal-symbol";
 847             printf("yydebug: state %d, error recovery discards token %d (%s)\n",
 848                     yystate, yychar, yys);
 849         }
 850 #endif
 851         yychar = (-1);
 852         goto yyloop;
 853     }
 854 yyreduce:
 855 #if YYDEBUG
 856     if (yydebug)
 857         printf("yydebug: state %d, reducing by rule %d (%s)\n",
 858                 yystate, yyn, yyrule[yyn]);
 859 #endif
 860     yym = yylen[yyn];
 861     yyval = yyvsp[1-yym];
 862     switch (yyn)
 863     {
 864 case 2:
 865 #line 126 "eqn.y"
 866 { yyvsp[0].b->top_level(); non_empty_flag = 1; }
 867 break;
 868 case 3:
 869 #line 131 "eqn.y"
 870 { yyval.b = yyvsp[0].b; }
 871 break;
 872 case 4:
 873 #line 133 "eqn.y"
 874 {
 875                   list_box *lb = yyvsp[-1].b->to_list_box();
 876                   if (!lb)
 877                     lb = new list_box(yyvsp[-1].b);
 878                   lb->append(yyvsp[0].b);
 879                   yyval.b = lb;
 880                 }
 881 break;
 882 case 5:
 883 #line 144 "eqn.y"
 884 { yyval.b = yyvsp[0].b; }
 885 break;
 886 case 6:
 887 #line 146 "eqn.y"
 888 { yyval.b = make_mark_box(yyvsp[0].b); }
 889 break;
 890 case 7:
 891 #line 148 "eqn.y"
 892 { yyval.b = make_lineup_box(yyvsp[0].b); }
 893 break;
 894 case 8:
 895 #line 153 "eqn.y"
 896 { yyval.b = yyvsp[0].b; }
 897 break;
 898 case 9:
 899 #line 155 "eqn.y"
 900 { yyval.b = make_limit_box(yyvsp[-2].b, 0, yyvsp[0].b); }
 901 break;
 902 case 10:
 903 #line 157 "eqn.y"
 904 { yyval.b = make_limit_box(yyvsp[-2].b, yyvsp[0].b, 0); }
 905 break;
 906 case 11:
 907 #line 159 "eqn.y"
 908 { yyval.b = make_limit_box(yyvsp[-4].b, yyvsp[-2].b, yyvsp[0].b); }
 909 break;
 910 case 12:
 911 #line 161 "eqn.y"
 912 { yyval.b = make_limit_box(yyvsp[-4].b, make_limit_box(yyvsp[-2].b, yyvsp[0].b, 0), 0); }
 913 break;
 914 case 13:
 915 #line 166 "eqn.y"
 916 { yyval.b = yyvsp[0].b; }
 917 break;
 918 case 14:
 919 #line 168 "eqn.y"
 920 { yyval.b = make_sqrt_box(yyvsp[0].b); }
 921 break;
 922 case 15:
 923 #line 170 "eqn.y"
 924 { yyval.b = make_over_box(yyvsp[-2].b, yyvsp[0].b); }
 925 break;
 926 case 16:
 927 #line 172 "eqn.y"
 928 { yyval.b = make_small_over_box(yyvsp[-2].b, yyvsp[0].b); }
 929 break;
 930 case 17:
 931 #line 177 "eqn.y"
 932 { yyval.b = yyvsp[0].b; }
 933 break;
 934 case 18:
 935 #line 179 "eqn.y"
 936 { yyval.b = make_script_box(yyvsp[-2].b, 0, yyvsp[0].b); }
 937 break;
 938 case 19:
 939 #line 184 "eqn.y"
 940 { yyval.b = yyvsp[0].b; }
 941 break;
 942 case 20:
 943 #line 186 "eqn.y"
 944 { yyval.b = make_script_box(yyvsp[-2].b, yyvsp[0].b, 0); }
 945 break;
 946 case 21:
 947 #line 188 "eqn.y"
 948 { yyval.b = make_script_box(yyvsp[-4].b, yyvsp[-2].b, yyvsp[0].b); }
 949 break;
 950 case 22:
 951 #line 193 "eqn.y"
 952 { yyval.b = split_text(yyvsp[0].str); }
 953 break;
 954 case 23:
 955 #line 195 "eqn.y"
 956 { yyval.b = new quoted_text_box(yyvsp[0].str); }
 957 break;
 958 case 24:
 959 #line 197 "eqn.y"
 960 { yyval.b = split_text(yyvsp[0].str); }
 961 break;
 962 case 25:
 963 #line 199 "eqn.y"
 964 { yyval.b = new quoted_text_box(yyvsp[0].str); }
 965 break;
 966 case 26:
 967 #line 201 "eqn.y"
 968 { yyval.b = new half_space_box; }
 969 break;
 970 case 27:
 971 #line 203 "eqn.y"
 972 { yyval.b = new space_box; }
 973 break;
 974 case 28:
 975 #line 205 "eqn.y"
 976 { yyval.b = new tab_box; }
 977 break;
 978 case 29:
 979 #line 207 "eqn.y"
 980 { yyval.b = yyvsp[-1].b; }
 981 break;
 982 case 30:
 983 #line 209 "eqn.y"
 984 { yyvsp[0].pb->set_alignment(CENTER_ALIGN); yyval.b = yyvsp[0].pb; }
 985 break;
 986 case 31:
 987 #line 211 "eqn.y"
 988 { yyvsp[0].pb->set_alignment(LEFT_ALIGN); yyval.b = yyvsp[0].pb; }
 989 break;
 990 case 32:
 991 #line 213 "eqn.y"
 992 { yyvsp[0].pb->set_alignment(RIGHT_ALIGN); yyval.b = yyvsp[0].pb; }
 993 break;
 994 case 33:
 995 #line 215 "eqn.y"
 996 { yyvsp[0].pb->set_alignment(CENTER_ALIGN); yyval.b = yyvsp[0].pb; }
 997 break;
 998 case 34:
 999 #line 217 "eqn.y"
1000 { yyval.b = yyvsp[-1].mb; }
1001 break;
1002 case 35:
1003 #line 219 "eqn.y"
1004 { yyval.b = make_delim_box(yyvsp[-3].str, yyvsp[-2].b, yyvsp[0].str); }
1005 break;
1006 case 36:
1007 #line 221 "eqn.y"
1008 { yyval.b = make_delim_box(yyvsp[-1].str, yyvsp[0].b, 0); }
1009 break;
1010 case 37:
1011 #line 223 "eqn.y"
1012 { yyval.b = make_overline_box(yyvsp[-1].b); }
1013 break;
1014 case 38:
1015 #line 225 "eqn.y"
1016 { yyval.b = make_underline_box(yyvsp[-1].b); }
1017 break;
1018 case 39:
1019 #line 227 "eqn.y"
1020 { yyval.b = make_prime_box(yyvsp[-1].b); }
1021 break;
1022 case 40:
1023 #line 229 "eqn.y"
1024 { yyval.b = make_accent_box(yyvsp[-2].b, yyvsp[0].b); }
1025 break;
1026 case 41:
1027 #line 231 "eqn.y"
1028 { yyval.b = make_uaccent_box(yyvsp[-2].b, yyvsp[0].b); }
1029 break;
1030 case 42:
1031 #line 233 "eqn.y"
1032 { yyval.b = new font_box(strsave(get_grfont()), yyvsp[0].b); }
1033 break;
1034 case 43:
1035 #line 235 "eqn.y"
1036 { yyval.b = new font_box(strsave(get_gbfont()), yyvsp[0].b); }
1037 break;
1038 case 44:
1039 #line 237 "eqn.y"
1040 { yyval.b = new font_box(strsave(get_gfont()), yyvsp[0].b); }
1041 break;
1042 case 45:
1043 #line 239 "eqn.y"
1044 { yyval.b = new fat_box(yyvsp[0].b); }
1045 break;
1046 case 46:
1047 #line 241 "eqn.y"
1048 { yyval.b = new font_box(yyvsp[-1].str, yyvsp[0].b); }
1049 break;
1050 case 47:
1051 #line 243 "eqn.y"
1052 { yyval.b = new size_box(yyvsp[-1].str, yyvsp[0].b); }
1053 break;
1054 case 48:
1055 #line 245 "eqn.y"
1056 { yyval.b = new hmotion_box(yyvsp[-1].n, yyvsp[0].b); }
1057 break;
1058 case 49:
1059 #line 247 "eqn.y"
1060 { yyval.b = new hmotion_box(-yyvsp[-1].n, yyvsp[0].b); }
1061 break;
1062 case 50:
1063 #line 249 "eqn.y"
1064 { yyval.b = new vmotion_box(yyvsp[-1].n, yyvsp[0].b); }
1065 break;
1066 case 51:
1067 #line 251 "eqn.y"
1068 { yyval.b = new vmotion_box(-yyvsp[-1].n, yyvsp[0].b); }
1069 break;
1070 case 52:
1071 #line 253 "eqn.y"
1072 { yyvsp[0].b->set_spacing_type(yyvsp[-1].str); yyval.b = yyvsp[0].b; }
1073 break;
1074 case 53:
1075 #line 255 "eqn.y"
1076 { yyval.b = new vcenter_box(yyvsp[0].b); }
1077 break;
1078 case 54:
1079 #line 257 "eqn.y"
1080 { yyval.b = make_special_box(yyvsp[-1].str, yyvsp[0].b); }
1081 break;
1082 case 55:
1083 #line 262 "eqn.y"
1084 {
1085                   int n;
1086                   if (sscanf(yyvsp[0].str, "%d", &n) == 1)
1087                     yyval.n = n;
1088                   a_delete yyvsp[0].str;
1089                 }
1090 break;
1091 case 56:
1092 #line 272 "eqn.y"
1093 { yyval.pb = new pile_box(yyvsp[0].b); }
1094 break;
1095 case 57:
1096 #line 274 "eqn.y"
1097 { yyvsp[-2].pb->append(yyvsp[0].b); yyval.pb = yyvsp[-2].pb; }
1098 break;
1099 case 58:
1100 #line 279 "eqn.y"
1101 { yyval.pb = yyvsp[-1].pb; }
1102 break;
1103 case 59:
1104 #line 281 "eqn.y"
1105 { yyvsp[-1].pb->set_space(yyvsp[-3].n); yyval.pb = yyvsp[-1].pb; }
1106 break;
1107 case 60:
1108 #line 286 "eqn.y"
1109 { yyval.mb = new matrix_box(yyvsp[0].col); }
1110 break;
1111 case 61:
1112 #line 288 "eqn.y"
1113 { yyvsp[-1].mb->append(yyvsp[0].col); yyval.mb = yyvsp[-1].mb; }
1114 break;
1115 case 62:
1116 #line 293 "eqn.y"
1117 { yyval.col = new column(yyvsp[0].b); }
1118 break;
1119 case 63:
1120 #line 295 "eqn.y"
1121 { yyvsp[-2].col->append(yyvsp[0].b); yyval.col = yyvsp[-2].col; }
1122 break;
1123 case 64:
1124 #line 300 "eqn.y"
1125 { yyval.col = yyvsp[-1].col; }
1126 break;
1127 case 65:
1128 #line 302 "eqn.y"
1129 { yyvsp[-1].col->set_space(yyvsp[-3].n); yyval.col = yyvsp[-1].col; }
1130 break;
1131 case 66:
1132 #line 307 "eqn.y"
1133 { yyvsp[0].col->set_alignment(CENTER_ALIGN); yyval.col = yyvsp[0].col; }
1134 break;
1135 case 67:
1136 #line 309 "eqn.y"
1137 { yyvsp[0].col->set_alignment(LEFT_ALIGN); yyval.col = yyvsp[0].col; }
1138 break;
1139 case 68:
1140 #line 311 "eqn.y"
1141 { yyvsp[0].col->set_alignment(RIGHT_ALIGN); yyval.col = yyvsp[0].col; }
1142 break;
1143 case 69:
1144 #line 313 "eqn.y"
1145 { yyvsp[0].col->set_alignment(CENTER_ALIGN); yyval.col = yyvsp[0].col; }
1146 break;
1147 case 70:
1148 #line 317 "eqn.y"
1149 { yyval.str = yyvsp[0].str; }
1150 break;
1151 case 71:
1152 #line 319 "eqn.y"
1153 { yyval.str = yyvsp[0].str; }
1154 break;
1155 case 72:
1156 #line 324 "eqn.y"
1157 { yyval.str = yyvsp[0].str; }
1158 break;
1159 case 73:
1160 #line 326 "eqn.y"
1161 { yyval.str = strsave("{"); }
1162 break;
1163 case 74:
1164 #line 328 "eqn.y"
1165 { yyval.str = strsave("}"); }
1166 break;
1167 #line 1168 "y.tab.c"
1168     }
1169     yyssp -= yym;
1170     yystate = *yyssp;
1171     yyvsp -= yym;
1172     yym = yylhs[yyn];
1173     if (yystate == 0 && yym == 0)
1174     {
1175 #if YYDEBUG
1176         if (yydebug)
1177             printf("yydebug: after reduction, shifting from state 0 to\
1178  state %d\n", YYFINAL);
1179 #endif
1180         yystate = YYFINAL;
1181         *++yyssp = YYFINAL;
1182         *++yyvsp = yyval;
1183         if (yychar < 0)
1184         {
1185             if ((yychar = yylex()) < 0) yychar = 0;
1186 #if YYDEBUG
1187             if (yydebug)
1188             {
1189                 yys = 0;
1190                 if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
1191                 if (!yys) yys = "illegal-symbol";
1192                 printf("yydebug: state %d, reading %d (%s)\n",
1193                         YYFINAL, yychar, yys);
1194             }
1195 #endif
1196         }
1197         if (yychar == 0) goto yyaccept;
1198         goto yyloop;
1199     }
1200     if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
1201             yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
1202         yystate = yytable[yyn];
1203     else
1204         yystate = yydgoto[yym];
1205 #if YYDEBUG
1206     if (yydebug)
1207         printf("yydebug: after reduction, shifting from state %d \
1208 to state %d\n", *yyssp, yystate);
1209 #endif
1210     if (yyssp >= yysse)
1211     {
1212         int depth = yyssp - yyss;
1213         if (yygrow () != 0)
1214           goto yyoverflow;
1215         yysse = yyss + yystacksize - 1;
1216         yyssp = yyss + depth;
1217         yyvsp = yyvs + depth;
1218     }
1219     *++yyssp = yystate;
1220     *++yyvsp = yyval;
1221     goto yyloop;
1222 yyoverflow:
1223     yyerror("yacc stack overflow");
1224 yyabort:
1225     return (1);
1226 yyaccept:
1227     return (0);
1228 }
1229
1230 static int
1231 yygrow ()
1232 {
1233     int old_stacksize = yystacksize;
1234     short *new_yyss;
1235     YYSTYPE *new_yyvs;
1236
1237     if (yystacksize >= YYMAXDEPTH)
1238         return (1);
1239     yystacksize *= 2;
1240     if (yystacksize > YYMAXDEPTH)
1241         yystacksize = YYMAXDEPTH;
1242 #if YYDEBUG
1243     if (yydebug)
1244         printf("yydebug: growing stack size from %d to %d\n",
1245                old_stacksize, yystacksize);
1246 #endif
1247     new_yyss = (short *) yyrealloc (yyss, yystacksize * sizeof (short));
1248     if (new_yyss == 0)
1249         return (1);
1250     new_yyvs = (YYSTYPE *) yyrealloc (yyvs, yystacksize * sizeof (YYSTYPE));
1251     if (new_yyvs == 0)
1252     {
1253         yyfree (new_yyss);
1254         return (1);
1255     }
1256     yyss = new_yyss;
1257     yyvs = new_yyvs;
1258     return (0);
1259 }
1260
1261 static YYPTR
1262 YYDEFUN (yymalloc, (bytes), unsigned bytes)
1263 {
1264     YYPTR ptr = (YYPTR) malloc (bytes);
1265     if (ptr != 0) return (ptr);
1266     yyerror ("yyparse: memory exhausted");
1267     return (0);
1268 }
1269
1270 static YYPTR
1271 YYDEFUN (yyrealloc, (old, bytes), YYPTR old YYAND unsigned bytes)
1272 {
1273     YYPTR ptr = (YYPTR) realloc (old, bytes);
1274     if (ptr != 0) return (ptr);
1275     yyerror ("yyparse: memory exhausted");
1276     return (0);
1277 }