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%{
/* $Id: cmd_tbl.l,v 1.1 1995/12/14 06:52:48 tholo Exp $ */
/*-
* Copyright 1987, 1988 by the Student Information Processing Board
* of the Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for any purpose and without fee is
* hereby granted, provided that the above copyright notice
* appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation,
* and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
* used in advertising or publicity pertaining to distribution
* of the software without specific, written prior permission.
* M.I.T. and the M.I.T. S.I.P.B. make no representations about
* the suitability of this software for any purpose. It is
* provided "as is" without express or implied warranty.
*/
%}
N [0-9]
PC [^\"]
AN [A-Z_a-z0-9]
%{
unsigned lineno = 1;
static l_command_table(), l_request(), l_unimplemented(), l_end(),
l_quoted_string(), l_string();
%}
%%
%{
/* emptied */
%}
command_table return l_command_table();
request return l_request();
unimplemented return l_unimplemented();
end return l_end();
[\t ] ;
\n ++lineno;
\"{PC}*\" return l_quoted_string();
{AN}* return l_string();
#.*\n ++lineno;
. return (*yytext);
%%
/*
* User-subroutines section.
*
* Have to put all this stuff here so that the include file
* from YACC output can be included, since LEX doesn't allow
* an include file before the code it generates for the above
* rules.
*/
#include <string.h>
#include "y.tab.h"
/* #include "copyright.h" */
extern char *last_token, *ds();
static l_command_table()
{
last_token = "command_table";
return COMMAND_TABLE;
}
static l_request()
{
last_token = "request";
return REQUEST;
}
static l_unimplemented()
{
last_token = "unimplemented";
return UNIMPLEMENTED;
}
static l_end()
{
last_token = "end";
return END;
}
static l_quoted_string()
{
register char *p;
yylval.dynstr = ds(yytext+1);
if (p=strrchr(yylval.dynstr, '"'))
*p='\0';
last_token = ds(yylval.dynstr);
return STRING;
}
static l_string()
{
yylval.dynstr = ds(yytext);
last_token = ds(yylval.dynstr);
return STRING;
}
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