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1.1 ! root 1: /* ! 2: * Copyright (c) 1983 Regents of the University of California. ! 3: * All rights reserved. The Berkeley software License Agreement ! 4: * specifies the terms and conditions for redistribution. ! 5: */ ! 6: ! 7: #ifndef lint ! 8: static char sccsid[] = "@(#)operators.c 5.1 (Berkeley) 5/31/85"; ! 9: #endif not lint ! 10: ! 11: static char rcsid[] = "$Header: operators.c,v 1.5 84/12/26 10:41:01 linton Exp $"; ! 12: ! 13: /* ! 14: * Tree node classes. ! 15: */ ! 16: ! 17: #include "defs.h" ! 18: #include "operators.h" ! 19: ! 20: #ifndef public ! 21: typedef struct { ! 22: char numargs; ! 23: char opflags; ! 24: String opstring; ! 25: } Opinfo; ! 26: ! 27: typedef enum { ! 28: O_NOP, ! 29: O_NAME, O_SYM, O_LCON, O_CCON, O_FCON, O_SCON, ! 30: O_RVAL, O_INDEX, O_INDIR, O_DOT, ! 31: O_COMMA, ! 32: ! 33: O_ITOF, O_ADD, O_ADDF, O_SUB, O_SUBF, O_NEG, O_NEGF, ! 34: O_MUL, O_MULF, O_DIVF, O_DIV, O_MOD, ! 35: ! 36: O_AND, O_OR, ! 37: ! 38: O_LT, O_LTF, O_LE, O_LEF, O_GT, O_GTF, O_GE, O_GEF, ! 39: O_EQ, O_EQF, O_NE, O_NEF, ! 40: ! 41: O_ALIAS, /* rename a command */ ! 42: O_ASSIGN, /* assign a value to a program variable */ ! 43: O_CALL, /* call a procedure in the program */ ! 44: O_CATCH, /* catch a signal before program does */ ! 45: O_CHFILE, /* change (or print) the current source file */ ! 46: O_CONT, /* continue execution */ ! 47: O_DEBUG, /* invoke a dbx internal debugging routine */ ! 48: O_DELETE, /* remove a trace/stop */ ! 49: O_DUMP, /* dump out variables */ ! 50: O_EDIT, /* edit a file (or function) */ ! 51: O_FUNC, /* set the current function */ ! 52: O_GRIPE, /* send mail to debugger support person */ ! 53: O_HELP, /* print a synopsis of debugger commands */ ! 54: O_IGNORE, /* let program catch signal */ ! 55: O_LIST, /* list source lines */ ! 56: O_PRINT, /* print the values of a list of expressions */ ! 57: O_PSYM, /* print symbol information */ ! 58: O_RUN, /* start up program */ ! 59: O_SKIP, /* skip the current line */ ! 60: O_SOURCE, /* read commands from a file */ ! 61: O_STATUS, /* display currently active trace/stop's */ ! 62: O_STEP, /* execute a single line */ ! 63: O_STOP, /* stop on an event */ ! 64: O_STOPI, /* stop on an event at an instruction boundary */ ! 65: O_TRACE, /* trace something on an event */ ! 66: O_TRACEI, /* trace at the instruction level */ ! 67: O_WHATIS, /* print the declaration of a variable */ ! 68: O_WHERE, /* print a stack trace */ ! 69: O_WHEREIS, /* print all the symbols with the given name */ ! 70: O_WHICH, /* print out full qualification of a symbol */ ! 71: O_EXAMINE, /* examine program instructions/data */ ! 72: ! 73: O_ADDEVENT, /* add an event */ ! 74: O_ENDX, /* end of program reached */ ! 75: O_IF, /* if first arg is true, do commands in second arg */ ! 76: O_ONCE, /* add a "one-time" event, delete when first reached */ ! 77: O_PRINTCALL, /* print out the current procedure and its arguments */ ! 78: O_PRINTIFCHANGED, /* print the value of the argument if it has changed */ ! 79: O_PRINTRTN, /* print out the routine and value that just returned */ ! 80: O_PRINTSRCPOS, /* print out the current source position */ ! 81: O_PROCRTN, /* call completed */ ! 82: O_QLINE, /* filename, line number */ ! 83: O_STOPIFCHANGED, /* stop if the value of the argument has changed */ ! 84: O_STOPX, /* stop execution */ ! 85: O_TRACEON, /* begin tracing source line, variable, or all lines */ ! 86: O_TRACEOFF, /* end tracing source line, variable, or all lines */ ! 87: ! 88: O_TYPERENAME, /* state the type of an expression */ ! 89: O_RERUN, /* re-run program with the same arguments as before */ ! 90: O_RETURN, /* continue execution until procedure returns */ ! 91: O_UP, /* move current function up the call stack */ ! 92: O_DOWN, /* move current function down the call stack */ ! 93: O_CALLPROC, /* call command */ ! 94: O_SEARCH, /* regular expression pattern search through source */ ! 95: O_SET, /* set a debugger variable */ ! 96: O_UNSET, /* unset a debugger variable */ ! 97: O_UNALIAS, /* remove an alias */ ! 98: ! 99: O_LASTOP ! 100: } Operator; ! 101: ! 102: /* ! 103: * Operator flags and predicates. ! 104: */ ! 105: ! 106: #define null 0 ! 107: #define LEAF 01 ! 108: #define UNARY 02 ! 109: #define BINARY 04 ! 110: #define BOOL 010 ! 111: #define REALOP 020 ! 112: #define INTOP 040 ! 113: ! 114: #define isbitset(a, m) ((a&m) == m) ! 115: #define isleaf(o) isbitset(opinfo[ord(o)].opflags, LEAF) ! 116: #define isunary(o) isbitset(opinfo[ord(o)].opflags, UNARY) ! 117: #define isbinary(o) isbitset(opinfo[ord(o)].opflags, BINARY) ! 118: #define isreal(o) isbitset(opinfo[ord(o)].opflags, REALOP) ! 119: #define isint(o) isbitset(opinfo[ord(o)].opflags, INTOP) ! 120: #define isboolean(o) isbitset(opinfo[ord(o)].opflags, BOOL) ! 121: ! 122: #define degree(o) (opinfo[ord(o)].opflags&(LEAF|UNARY|BINARY)) ! 123: #define nargs(o) (opinfo[ord(o)].numargs) ! 124: ! 125: #endif ! 126: ! 127: /* ! 128: * Operator information structure. ! 129: */ ! 130: ! 131: public Opinfo opinfo[] ={ ! 132: /* O_NOP */ 0, null, 0, ! 133: /* O_NAME */ -1, LEAF, 0, ! 134: /* O_SYM */ -1, LEAF, 0, ! 135: /* O_LCON */ -1, LEAF, 0, ! 136: /* O_CCON */ -1, LEAF, 0, ! 137: /* O_FCON */ -1, LEAF, 0, ! 138: /* O_SCON */ -1, LEAF, 0, ! 139: /* O_RVAL */ 1, UNARY, 0, ! 140: /* O_INDEX */ 2, null, 0, ! 141: /* O_INDIR */ 1, UNARY, "^", ! 142: /* O_DOT */ 2, null, ".", ! 143: /* O_COMMA */ 2, null, ",", ! 144: /* O_ITOF */ 1, UNARY|INTOP, 0, ! 145: /* O_ADD */ 2, BINARY|INTOP, "+", ! 146: /* O_ADDF */ 2, BINARY|REALOP, "+", ! 147: /* O_SUB */ 2, BINARY|INTOP, "-", ! 148: /* O_SUBF */ 2, BINARY|REALOP, "-", ! 149: /* O_NEG */ 1, UNARY|INTOP, "-", ! 150: /* O_NEGF */ 1, UNARY|REALOP, "-", ! 151: /* O_MUL */ 2, BINARY|INTOP, "*", ! 152: /* O_MULF */ 2, BINARY|REALOP, "*", ! 153: /* O_DIVF */ 2, BINARY|REALOP, "/", ! 154: /* O_DIV */ 2, BINARY|INTOP, " div ", ! 155: /* O_MOD */ 2, BINARY|INTOP, " mod ", ! 156: /* O_AND */ 2, BINARY|INTOP, " and ", ! 157: /* O_OR */ 2, BINARY|INTOP, " or ", ! 158: /* O_LT */ 2, BINARY|INTOP, " < ", ! 159: /* O_LTF */ 2, BINARY|REALOP, " < ", ! 160: /* O_LE */ 2, BINARY|INTOP, " <= ", ! 161: /* O_LEF */ 2, BINARY|REALOP, " <= ", ! 162: /* O_GT */ 2, BINARY|INTOP, " > ", ! 163: /* O_GTF */ 2, BINARY|REALOP, " > ", ! 164: /* O_GE */ 2, BINARY|INTOP, " >= ", ! 165: /* O_GEF */ 2, BINARY|REALOP, " >= ", ! 166: /* O_EQ */ 2, BINARY|INTOP, " = ", ! 167: /* O_EQF */ 2, BINARY|REALOP, " = ", ! 168: /* O_NE */ 2, BINARY|INTOP, " <> ", ! 169: /* O_NEF */ 2, BINARY|REALOP, " <> ", ! 170: ! 171: /* O_ALIAS */ 2, null, "alias", ! 172: /* O_ASSIGN */ 2, null, " := ", ! 173: /* O_CALL */ 2, null, "call", ! 174: /* O_CATCH */ 0, null, "catch", ! 175: /* O_CHFILE */ 0, null, "file", ! 176: /* O_CONT */ 0, null, "cont", ! 177: /* O_DEBUG */ 0, null, "debug", ! 178: /* O_DELETE */ 1, null, "delete", ! 179: /* O_DUMP */ 1, null, "dump", ! 180: /* O_EDIT */ 0, null, "edit", ! 181: /* O_FUNC */ 1, null, "func", ! 182: /* O_GRIPE */ 0, null, "gripe", ! 183: /* O_HELP */ 0, null, "help", ! 184: /* O_IGNORE */ 0, null, "ignore", ! 185: /* O_LIST */ 2, null, "list", ! 186: /* O_PRINT */ 1, null, "print", ! 187: /* O_PSYM */ 1, null, "psym", ! 188: /* O_RUN */ 0, null, "run", ! 189: /* O_SKIP */ 0, null, "skip", ! 190: /* O_SOURCE */ 0, null, "source", ! 191: /* O_STATUS */ 0, null, "status", ! 192: /* O_STEP */ 0, null, "step", ! 193: /* O_STOP */ 3, null, "stop", ! 194: /* O_STOPI */ 3, null, "stopi", ! 195: /* O_TRACE */ 3, null, "trace", ! 196: /* O_TRACEI */ 3, null, "tracei", ! 197: /* O_WHATIS */ 1, null, "whatis", ! 198: /* O_WHERE */ 0, null, "where", ! 199: /* O_WHEREIS */ 1, null, "whereis", ! 200: /* O_WHICH */ 1, null, "which", ! 201: /* O_EXAMINE */ 0, null, "examine", ! 202: ! 203: /* O_ADDEVENT */ 0, null, "when", ! 204: /* O_ENDX */ 0, null, nil, ! 205: /* O_IF */ 0, null, "if", ! 206: /* O_ONCE */ 0, null, "once", ! 207: /* O_PRINTCALL */ 1, null, "printcall", ! 208: /* O_PRINTIFCHANGED */ 1, null, "printifchanged", ! 209: /* O_PRINTRTN */ 1, null, "printrtn", ! 210: /* O_PRINTSRCPOS */ 1, null, "printsrcpos", ! 211: /* O_PROCRTN */ 1, null, "procrtn", ! 212: /* O_QLINE */ 2, null, nil, ! 213: /* O_STOPIFCHANGED */ 1, null, "stopifchanged", ! 214: /* O_STOPX */ 0, null, "stop", ! 215: /* O_TRACEON */ 1, null, "traceon", ! 216: /* O_TRACEOFF */ 1, null, "traceoff", ! 217: /* O_TYPERENAME */ 2, UNARY, "type rename", ! 218: /* O_RERUN */ 0, null, "rerun", ! 219: /* O_RETURN */ 1, null, "return", ! 220: /* O_UP */ 1, UNARY, "up", ! 221: /* O_DOWN */ 1, UNARY, "down", ! 222: /* O_CALLPROC */ 2, null, "call", ! 223: /* O_SEARCH */ 2, null, "search", ! 224: /* O_SET */ 2, null, "set", ! 225: /* O_UNSET */ 1, null, "unset", ! 226: /* O_UNALIAS */ 1, null, "unalias", ! 227: };
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