usr/src/cmd/sgs/librtld_db/demo/common/lex.l

   1 %{
   2 /*
   3  * CDDL HEADER START
   4  *
   5  * The contents of this file are subject to the terms of the
   6  * Common Development and Distribution License (the "License").
   7  * You may not use this file except in compliance with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22
  23 /*
  24  * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved.
  25  */
  26
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <sys/types.h>
  30
  31 #include "gram.h"
  32 #include "rdb.h"
  33 %}
  34
  35 ws              [ \t]+
  36 nl              \n
  37 symbol          [_a-zA-Z][_a-zA-Z0-9]*
  38 varstring       \$[_a-zA-Z][_a-zA-Z0-9]*        /* $<name> */
  39 hexnumber       0[xX][0-9a-zA-Z]+
  40 decnumber       [0-9]+
  41 qstring         \"[^\"\n]*[\"\n]
  42
  43 %%
  44 \#[^\n]*                ;       /* ignore comments */
  45 \\\n                    ;       /* perform line continuation... */
  46 {ws}                    ;       /* ignore whitespace */
  47 {hexnumber}             {yylval.addr = hexstr_to_num(yytext); return (NUMBER);}
  48 {decnumber}             {yylval.addr = atoi(yytext); return (NUMBER);}
  49 \+                      {return (PLUS);}
  50 ^{ws}*break             {return (BREAK);}
  51 ^{ws}*cont              {return (CONT);}
  52 ^{ws}*echo              {return (ECHO_OUT);}
  53 ^{ws}*event             {return (EVENT);}
  54 ^{ws}*delete            {return (DELETE);}
  55 ^{ws}*dis               {return (DIS);}
  56 ^{ws}*getmaps           {return (GETMAPS);}
  57 ^{ws}*help              {return (HELP);}
  58 ^{ws}*linkmaps          {return (LINKMAPS);}
  59 ^{ws}*maps              {return (MAPS);}
  60 ^{ws}*objpad            {return (OBJPAD);}
  61 ^{ws}*pltskip           {return (PLTSKIP);}
  62 ^{ws}*print             {return (PRINT);}
  63 ^{ws}*step              {return (STEP);}
  64 ^{ws}*value             {return (VALUE);}
  65 ^{ws}*where             {return (WHERE);}
  66 {symbol}                {yylval.str = strdup(yytext); return (SYMBOL);}
  67 {varstring}             {
  68                                 yylval.str = strdup(yytext + 1);
  69                                 return (VARSTRING);
  70                         }
  71 {qstring}               {
  72                                 yylval.str = strdup(yytext + 1);
  73                                 if (yylval.str[yyleng - 2] == '"')
  74                                         yylval.str[yyleng - 2] = '\0';
  75                                 return (QSTRING);
  76                         }
  77 {nl}                    {return (NEWLINE);}
  78 %%