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/*
// Copyright (c) 2009-2011, Jimmy Kwa,
// The University of British Columbia
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 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.
// Neither the name of The University of British Columbia 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*/
%option noyywrap
%option yylineno
%option prefix="header_"
%{
#include <iostream>
#include "header_parser.hh"
#include <string.h>
/* not sure if this is needed*/
#define YY_NEVER_INTERACTIVE 1
void header_error(const char*);
extern void output(const char * text);
%}
/*Regular expresions go here*/
alpha [a-zA-Z]
numeric [0-9]
hexalpha [A-Fa-f]
alphanum ({alpha}|{numeric})
hexdigit ({numeric}|{hexalpha})
whitespace [ \t]
newline [\n]
anycharbutnewline [^\n]
anychar ({newline}|{anycharbutnewline})
anycharbutrightbrace [^"}"]
identifier ({alpha}({alphanum}|["_$"])*)|([_$%]({alphanum}|["_$"])+)
hexliteral 0[xX]{hexdigit}+U?
octliteral 0[0-7]+U?
binliteral 0[bB][01]+U?
decliteral ([1-9][0-9]*U?)|0U?
%%
/*Translation rules*/
/*Compiler directives*/
\.version return DOTVERSION;
\.target return DOTTARGET;
\.entry return DOTENTRY;
/*State spaces*/
\.param return DOTPARAM;
/*operand types*/
\.u64 return DOTU64;
\.u32 return DOTU32;
\.u16 return DOTU16;
\.b32 return DOTB32;
\.f32 return DOTF32;
/*identifier + literals*/
{identifier} header_lval.string_value = strdup(yytext); return IDENTIFER;
{decliteral} header_lval.string_value = strdup(yytext); return DECLITERAL; //change to int later?
/*braces and parenthesis*/
\( return LEFTPAREN;
\) return RIGHTPAREN;
/*discard newline*/
{newline}+
/*discard commas and periods*/
\,
\.
/*discard whitespace*/
{whitespace}+
/*discard comments*/
"//"{anycharbutnewline}*{newline}
/*discard other header stuff*/
\.file{anycharbutnewline}*{newline}
\.extern{anycharbutnewline}*{newline}
/*discard kernel body*/
\{{anycharbutrightbrace}*\}
/*reached end of file*/
<<EOF>> return 0;
/*None of the rules matched. Throw error*/
. header_error("Invalid token");
%%
void header_error(const char* message)
{
output(" "); output(message); output(" near \""); output(header_text); output("\"");
output(" on line ");
char line[5]; sprintf(line, "%i", header_lineno); output(line);
output("\n");
}
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