| 1 | %{# |
| 2 | #include "e.h" |
| 3 | # |
| 4 | int fromflg; |
| 5 | %} |
| 6 | %term CONTIG QTEXT SPACE THIN TAB |
| 7 | %term MATRIX LCOL CCOL RCOL COL |
| 8 | %term MARK LINEUP |
| 9 | %term SUM INT PROD UNION INTER |
| 10 | %term LPILE PILE CPILE RPILE ABOVE |
| 11 | %term DEFINE TDEFINE NDEFINE DELIM GSIZE GFONT INCLUDE |
| 12 | %right FROM TO |
| 13 | %left OVER SQRT |
| 14 | %right SUP SUB |
| 15 | %right SIZE FONT ROMAN ITALIC BOLD FAT |
| 16 | %right UP DOWN BACK FWD |
| 17 | %left LEFT RIGHT |
| 18 | %right DOT DOTDOT HAT TILDE BAR UNDER VEC DYAD |
| 19 | |
| 20 | %% |
| 21 | |
| 22 | stuff : eqn { putout($1); } |
| 23 | | error { error(!FATAL, "syntax error"); } |
| 24 | | { eqnreg = 0; } |
| 25 | ; |
| 26 | |
| 27 | eqn : box |
| 28 | | eqn box { eqnbox($1, $2, 0); } |
| 29 | | eqn lineupbox { eqnbox($1, $2, 1); } |
| 30 | | LINEUP { lineup(0); } |
| 31 | ; |
| 32 | |
| 33 | lineupbox: LINEUP box { $$ = $2; lineup(1); } |
| 34 | ; |
| 35 | |
| 36 | matrix : MATRIX { $$ = ct; } ; |
| 37 | |
| 38 | collist : column |
| 39 | | collist column |
| 40 | ; |
| 41 | |
| 42 | column : lcol '{' list '}' { column('L', $1); } |
| 43 | | ccol '{' list '}' { column('C', $1); } |
| 44 | | rcol '{' list '}' { column('R', $1); } |
| 45 | | col '{' list '}' { column('-', $1); } |
| 46 | ; |
| 47 | |
| 48 | lcol : LCOL { $$ = ct++; } ; |
| 49 | ccol : CCOL { $$ = ct++; } ; |
| 50 | rcol : RCOL { $$ = ct++; } ; |
| 51 | col : COL { $$ = ct++; } ; |
| 52 | |
| 53 | sbox : sup box %prec SUP { $$ = $2; } |
| 54 | ; |
| 55 | |
| 56 | tbox : to box %prec TO { $$ = $2; } |
| 57 | | %prec FROM { $$ = 0; } |
| 58 | ; |
| 59 | |
| 60 | box : box OVER box { boverb($1, $3); } |
| 61 | | MARK box { mark($2); } |
| 62 | | size box %prec SIZE { size($1, $2); } |
| 63 | | font box %prec FONT { font($1, $2); } |
| 64 | | FAT box { fatbox($2); } |
| 65 | | SQRT box { sqrt($2); } |
| 66 | | lpile '{' list '}' { lpile('L', $1, ct); ct = $1; } |
| 67 | | cpile '{' list '}' { lpile('C', $1, ct); ct = $1; } |
| 68 | | rpile '{' list '}' { lpile('R', $1, ct); ct = $1; } |
| 69 | | pile '{' list '}' { lpile('-', $1, ct); ct = $1; } |
| 70 | | box sub box sbox %prec SUB { shift2($1, $3, $4); } |
| 71 | | box sub box %prec SUB { bshiftb($1, $2, $3); } |
| 72 | | box sup box %prec SUP { bshiftb($1, $2, $3); } |
| 73 | | int sub box sbox %prec SUB { integral($1, $3, $4); } |
| 74 | | int sub box %prec SUB { integral($1, $3, 0); } |
| 75 | | int sup box %prec SUP { integral($1, 0, $3); } |
| 76 | | int { integral($1, 0, 0); } |
| 77 | | left eqn right { paren($1, $2, $3); } |
| 78 | | pbox |
| 79 | | box from box tbox %prec FROM { fromto($1, $3, $4); fromflg=0; } |
| 80 | | box to box %prec TO { fromto($1, 0, $3); } |
| 81 | | box diacrit { diacrit($1, $2); } |
| 82 | | fwd box %prec UP { move(FWD, $1, $2); } |
| 83 | | up box %prec UP { move(UP, $1, $2); } |
| 84 | | back box %prec UP { move(BACK, $1, $2); } |
| 85 | | down box %prec UP { move(DOWN, $1, $2); } |
| 86 | | matrix '{' collist '}' { matrix($1); } |
| 87 | ; |
| 88 | |
| 89 | int : INT { setintegral(); } |
| 90 | ; |
| 91 | |
| 92 | fwd : FWD text { $$ = atoi((char *) $1); } ; |
| 93 | up : UP text { $$ = atoi((char *) $1); } ; |
| 94 | back : BACK text { $$ = atoi((char *) $1); } ; |
| 95 | down : DOWN text { $$ = atoi((char *) $1); } ; |
| 96 | |
| 97 | diacrit : HAT { $$ = HAT; } |
| 98 | | VEC { $$ = VEC; } |
| 99 | | DYAD { $$ = DYAD; } |
| 100 | | BAR { $$ = BAR; } |
| 101 | | UNDER { $$ = UNDER; } /* under bar */ |
| 102 | | DOT { $$ = DOT; } |
| 103 | | TILDE { $$ = TILDE; } |
| 104 | | DOTDOT { $$ = DOTDOT; } /* umlaut = double dot */ |
| 105 | ; |
| 106 | |
| 107 | from : FROM { $$=ps; ps -= 3; fromflg = 1; |
| 108 | if(dbg)printf(".\tfrom: old ps %d, new ps %d, fflg %d\n", $$, ps, fromflg); |
| 109 | } |
| 110 | ; |
| 111 | |
| 112 | to : TO { $$=ps; if(fromflg==0)ps -= 3; |
| 113 | if(dbg)printf(".\tto: old ps %d, new ps %d\n", $$, ps); |
| 114 | } |
| 115 | ; |
| 116 | |
| 117 | left : LEFT text { $$ = ((char *)$2)[0]; } |
| 118 | | LEFT '{' { $$ = '{'; } |
| 119 | ; |
| 120 | |
| 121 | right : RIGHT text { $$ = ((char *)$2)[0]; } |
| 122 | | RIGHT '}' { $$ = '}'; } |
| 123 | | { $$ = 0; } |
| 124 | ; |
| 125 | |
| 126 | list : eqn { lp[ct++] = $1; } |
| 127 | | list ABOVE eqn { lp[ct++] = $3; } |
| 128 | ; |
| 129 | |
| 130 | lpile : LPILE { $$ = ct; } ; |
| 131 | cpile : CPILE { $$ = ct; } ; |
| 132 | pile : PILE { $$ = ct; } ; |
| 133 | rpile : RPILE { $$ = ct; } ; |
| 134 | |
| 135 | size : SIZE text { $$ = ps; setsize((char *) $2); } |
| 136 | ; |
| 137 | |
| 138 | font : ROMAN { setfont(ROM); } |
| 139 | | ITALIC { setfont(ITAL); } |
| 140 | | BOLD { setfont(BLD); } |
| 141 | | FONT text { setfont(((char *)$2)[0]); } |
| 142 | ; |
| 143 | |
| 144 | sub : SUB { shift(SUB); } |
| 145 | ; |
| 146 | |
| 147 | sup : SUP { shift(SUP); } |
| 148 | ; |
| 149 | |
| 150 | pbox : '{' eqn '}' { $$ = $2; } |
| 151 | | QTEXT { text(QTEXT, (char *) $1); } |
| 152 | | CONTIG { text(CONTIG, (char *) $1); } |
| 153 | | SPACE { text(SPACE, 0); } |
| 154 | | THIN { text(THIN, 0); } |
| 155 | | TAB { text(TAB, 0); } |
| 156 | | SUM { funny(SUM); } |
| 157 | | PROD { funny(PROD); } |
| 158 | | UNION { funny(UNION); } |
| 159 | | INTER { funny(INTER); } /* intersection */ |
| 160 | ; |
| 161 | |
| 162 | text : CONTIG |
| 163 | | QTEXT |
| 164 | ; |
| 165 | |
| 166 | %% |