eqn/e.h

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 enum charclass {
   6         OTHER, OLET, ILET, DIG, LPAR, RPAR, SLASH, PLUS, ILETF, ILETJ, VBAR, COMMA,
   7         NONE, LAST
   8 };
   9 extern int class[LAST][LAST];
  10
  11 #define dprintf         if (dbg) printf
  12 #define max(x,y)        (((x) >= (y)) ? (x) : (y))      /* beware of side effects */
  13 #define min(x,y)        (((x) <= (y)) ? (x) : (y))
  14
  15 extern  char    errbuf[200];
  16 extern  char    *cmdname;
  17 #define ERROR   sprintf(errbuf,
  18 #define FATAL   ), error(1, errbuf)
  19 #define WARNING ), error(0, errbuf)
  20 #define SYNTAX  ), yyerror(errbuf)
  21
  22 #define ROM     '1'
  23 #define ITAL    '2'
  24 #define BLD     '3'
  25 #define BDIT    '4'
  26
  27 #define DEFGAP  -999    /* default gap in piles */
  28
  29 extern int      dbg;
  30 extern int      ct;
  31 extern int      lp[];
  32 extern int      used[];         /* available registers */
  33 extern int      ps;             /* dflt init pt size */
  34 extern int      deltaps;        /* default change in ps */
  35 extern int      dps_set;        /* 1 => -p option used */
  36 extern int      gsize;          /* global size */
  37 extern int      ft;             /* default font */
  38 extern int      display;        /* 1 => inline, 0 => .EQ/.EN */
  39 extern int      synerr;         /* 1 if syntax error in this eqn */
  40
  41 extern char     *typesetter;    /* typesetter name for -T... */
  42 extern int      minsize;        /* min size it can print */
  43 extern int      ttype;          /* actual type of typesetter: */
  44
  45 #define DEVCAT  1
  46 #define DEV202  2
  47 #define DEVAPS  3
  48 #define DEVPOST 4
  49
  50 extern double   eht[];
  51 extern double   ebase[];
  52 extern int      lfont[];
  53 extern int      rfont[];
  54 extern int      lclass[];
  55 extern int      rclass[];
  56 extern int      yyval;
  57 extern int      yylval;
  58 extern int      eqnreg;
  59 extern double   eqnht;
  60 extern int      lefteq, righteq;
  61 extern int      markline;       /* 1 if this EQ/EN contains mark or lineup */
  62
  63 #define TBLSIZE 100
  64
  65 typedef struct s_tbl {
  66         char    *name;          /* e.g., "max" or "sum" */
  67         char    *cval;          /* e.g., "\\f1max\\fP" */
  68         int     ival;           /*    or SUM */
  69         struct s_tbl *next;
  70 } tbl;
  71
  72 extern  char    *spaceval;      /* use in place of normal \x (for pic) */
  73
  74 #define String  01
  75 #define Macro   02
  76 #define File    04
  77 #define Char    010
  78 #define Free    040
  79
  80 typedef struct infile {
  81         FILE    *fin;
  82         char    *fname;
  83         int     lineno;
  84 } Infile;
  85
  86 typedef struct {        /* input source */
  87         int     type;   /* Macro, String, File */
  88         char    *sp;    /* if String or Macro */
  89 } Src;
  90
  91 extern  Src     src[], *srcp;   /* input source stack */
  92
  93 #define MAXARGS 20
  94 typedef struct {        /* argument stack */
  95         char    *argstk[MAXARGS];       /* pointers to args */
  96         char    *argval;        /* points to space containing args */
  97 } Arg;
  98
  99 typedef struct {        /* font number and name */
 100         int     ft;
 101         char    name[10];
 102 } Font;
 103
 104 extern  Font    ftstack[];
 105 extern  Font    *ftp;
 106
 107 extern  int     szstack[];
 108 extern  int     nszstack;
 109
 110 extern  Infile  infile[10];
 111 extern  Infile  *curfile;
 112
 113 extern  tbl     *lookup(tbl **tblp, char *name);
 114 extern  void    install(tbl **tblp, char *name, char *cval, int ival);
 115 extern  tbl     *keytbl[], *deftbl[], *restbl[], *ftunetbl[];
 116
 117 extern  int     salloc(void);
 118 extern  void    sfree(int);
 119 extern  void    nrwid(int, int, int);
 120 extern  char    *ABSPS(int);
 121 extern  char    *DPS(int, int);
 122 extern  int     EFFPS(int);
 123 extern  double  EM(double, int);
 124 extern  double  REL(double, int);
 125 extern  char    *pad(int);
 126 extern  void    getstr(char *, int);
 127 extern  char    *strsave(char *);
 128
 129 extern  int     input(void);
 130 extern  int     unput(int);
 131 extern  void    pbstr(char *);
 132 extern  void    error(int, char *);
 133 extern  void    yyerror(char *);
 134
 135 extern  void    diacrit(int, int);
 136 extern  void    eqnbox(int, int, int);
 137 extern  void    setfont(char *);
 138 extern  void    font(int, int);
 139 extern  void    globfont(void);
 140 extern  void    fatbox(int);
 141 extern  void    fromto(int, int, int);
 142 extern  void    funny(int);
 143 extern  void    integral(int, int, int);
 144 extern  void    setintegral(void);
 145 extern  void    pushsrc(int, char *);
 146 extern  void    popsrc(void);
 147 extern  void    putout(int);
 148 extern  void    text(int, char *);
 149 extern void subsup(int, int, int);
 150 extern void bshiftb(int, int, int);
 151 extern void shift2(int, int, int);
 152 extern void setsize(char *);
 153 extern void size(int, int);
 154 extern void globsize(void);
 155 #define sqrt    sqrt2
 156 extern void sqrt(int);
 157 extern void text(int, char *);
 158 extern void boverb(int, int);
 159 extern void lineup(int);
 160 extern void mark(int);
 161 extern void paren(int, int, int);
 162 extern void move(int, int, int);
 163 extern void pile(int);
 164 extern int startcol(int);
 165 extern void column(int, int);
 166 extern void matrix(int);