%{ /* * Copyright (c) 1998, 1999 Kungliga Tekniska H�gskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Kungliga Tekniska * H�gskolan and its contributors. * * 4. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "compile_et.h" /* RCSID("$KTH: parse.y,v 1.9 1999/07/04 14:54:58 assar Exp $"); */ void yyerror (char *s); long name2number(const char *str); void error_message(char *, ...); extern char *yytext; int yyparse(void); /* This is for bison */ #if !defined(alloca) && !defined(HAVE_ALLOCA) #define alloca(x) malloc(x) #endif %} %union { char *string; int number; } %token ET INDEX PREFIX EC ID END %token <string> STRING %token <number> NUMBER %% file : /* */ | header statements ; header : id et | et ; id : ID STRING { id_str = $2; } ; et : ET STRING { base = name2number($2); strncpy(name, $2, sizeof(name)); name[sizeof(name) - 1] = '\0'; free($2); } | ET STRING STRING { base = name2number($2); strncpy(name, $3, sizeof(name)); name[sizeof(name) - 1] = '\0'; free($2); free($3); } ; statements : statement | statements statement ; statement : INDEX NUMBER { number = $2; } | PREFIX STRING { size_t len = strlen($2) + 2; prefix = realloc(prefix, len); strlcpy(prefix, $2, len); strlcat(prefix, "_", len); free($2); } | PREFIX { prefix = realloc(prefix, 1); *prefix = '\0'; } | EC STRING ',' STRING { struct error_code *ec = malloc(sizeof(*ec)); ec->next = NULL; ec->number = number; if(prefix && *prefix != '\0') { asprintf (&ec->name, "%s%s", prefix, $2); free($2); } else ec->name = $2; ec->string = $4; APPEND(codes, ec); number++; } | END { YYACCEPT; } ; %% long name2number(const char *str) { const char *p; long base = 0; const char *x = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" "abcdefghijklmnopqrstuvwxyz0123456789_"; if(strlen(str) > 4) { yyerror("table name too long"); return 0; } for(p = str; *p; p++){ char *q = strchr(x, *p); if(q == NULL) { yyerror("invalid character in table name"); return 0; } base = (base << 6) + (q - x) + 1; } base <<= 8; if(base > 0x7fffffff) base = -(0xffffffff - base + 1); return base; } void yyerror (char *s) { error_message ("%s\n", s); }