1 /* itbl-lex.l 2 Copyright 1997, 1998, 2001, 2002, 2005, 2006, 2007 3 Free Software Foundation, Inc. 4 5 This file is part of GAS, the GNU Assembler. 6 7 GAS is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GAS is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GAS; see the file COPYING. If not, write to the Free 19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 20 02110-1301, USA. */ 21 22 %{ 23 #include "as.h" 24 #include "itbl-lex.h" 25 #include <itbl-parse.h> 26 27 #ifdef DEBUG 28 #define DBG(x) printf x 29 #define MDBG(x) printf x 30 #else 31 #define DBG(x) 32 #define MDBG(x) 33 #endif 34 35 int insntbl_line = 1; 36 %} 37 38 ALNUM [A-Za-z0-9_] 39 DIGIT [0-9] 40 ALPHA [A-Za-z_] 41 HEX [0-9A-Fa-f] 42 43 %% 44 45 "creg"|"CREG" { 46 return CREG; 47 } 48 "dreg"|"DREG" { 49 return DREG; 50 } 51 "greg"|"GREG" { 52 return GREG; 53 } 54 "immed"|"IMMED" { 55 return IMMED; 56 } 57 "addr"|"ADDR" { 58 return ADDR; 59 } 60 "insn"|"INSN" { 61 return INSN; 62 } 63 "p"{DIGIT} { 64 yytext[yyleng] = 0; 65 yylval.processor = strtoul (yytext+1, 0, 0); 66 return PNUM; 67 } 68 {DIGIT}+ { 69 yytext[yyleng] = 0; 70 yylval.num = strtoul (yytext, 0, 0); 71 return NUM; 72 } 73 "0x"{HEX}+ { 74 yytext[yyleng] = 0; 75 yylval.num = strtoul (yytext, 0, 0); 76 return NUM; 77 } 78 {ALPHA}{ALNUM}* { 79 yytext[yyleng] = 0; 80 yylval.str = strdup (yytext); 81 return ID; 82 } 83 ";"|"#" { 84 int c; 85 while ((c = input ()) != EOF) 86 { 87 if (c == '\n') 88 { 89 unput (c); 90 break; 91 } 92 } 93 } 94 "\n" { 95 insntbl_line++; 96 MDBG (("in lex, NL = %d (x%x)\n", NL, NL)); 97 return NL; 98 } 99 " "|"\t" { 100 } 101 . { 102 MDBG (("char = %x, %d\n", yytext[0], yytext[0])); 103 return yytext[0]; 104 } 105 %% 106 107 #ifndef yywrap 108 int 109 yywrap () 110 { 111 return 1; 112 } 113 #endif 114