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%option nodefault
%option nomain
%option noyywrap
%option prefix="dump_"
num [0-9]{1,}
byte [0-9]{1,3}
ipaddr {byte}"."{byte}"."{byte}"."{byte}
atext [A-Za-z0-9!#$%&'*+/=?$^_`}{|~.-]{1,}
qtext "\""[!-~]{1,}"\""
mailbox {atext}|{qtext}
domain [A-Za-z0-9._-]{1,}
email "<"?{mailbox}"\@"?{domain}?">"?
void_email "<>"
comment #.*$
blank [ \t]{1,}
auto [Aa][Uu][Tt][Oo]
%{
#include "config.h"
#ifdef HAVE_SYS_CDEFS_H
#ifndef HAVE_BROKEN_RCSID
#include <sys/cdefs.h>
#ifdef __RCSID
__RCSID("$Id: dump_lex.l,v 1.10 2004/03/28 19:54:18 manu Exp $");
#endif
#endif
#endif
#include <string.h>
#include <errno.h>
#include <sysexits.h>
#define YY_NO_UNPUT
int dump_line = 1;
%}
%%
{auto} { return AUTO; }
{blank}
{comment}
{ipaddr} {
if (inet_pton(AF_INET, yytext, &yylval.ipaddr) != 1) {
printf("invalid IP address line %d\n",
dump_line);
exit(EX_DATAERR);
}
return IPADDR;
}
{num} {
yylval.time = atoi(yytext);
return TIME;
}
{email}|{void_email} {
strncpy(yylval.email, yytext, ADDRLEN);
yylval.email[ADDRLEN] = '\0';
return EMAIL;
}
\n {
dump_line++;
return yytext[0];
}
<*>.|\n {
printf("unknown token \"%s\" line %d, skiping\n",
yytext, dump_line);
}
%%
void
yyerror(err)
char *err;
{
fprintf(stderr, "error at line %d: %s\n", dump_line, err);
return;
}
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