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|
%{
//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#include <Ice/Ice.h>
#include <IceStorm/Parser.h>
#include <IceStorm/Grammar.h>
#if defined(_MSC_VER)
// '<' : signed/unsigned mismatch
# pragma warning(disable:4018)
// 'initializing' : conversion from '__int64' to 'int', possible loss of data
# pragma warning(disable:4244)
# if defined(ICE_64)
//
// '=' : conversion from 'size_t' to 'int', possible loss of data
// The result of fread() is a size_t and gets inserted into an int
//
# pragma warning(disable:4267)
# endif
#endif
#if defined(__GNUC__)
# pragma GCC diagnostic ignored "-Wsign-compare"
#endif
using namespace std;
using namespace Ice;
using namespace IceStorm;
#ifdef _MSC_VER
# ifdef yywrap
# undef yywrap
# define yywrap() 1
# endif
# define YY_NO_UNISTD_H
#endif
#define YY_INPUT(buf, result, maxSize) parser->getInput(buf, result, maxSize)
namespace IceStorm
{
typedef std::map<std::string, int> StringTokenMap;
static StringTokenMap keywordMap;
void initScanner();
}
#define YY_USER_INIT initScanner();
%}
WS [ \t\v\f\r]
NL [\n]
keyword [[:alpha:]]*
%option noyywrap
%option always-interactive
%%
"//" {
// C++-style comment
int c;
do
{
c = yyinput();
}
while(c != '\n' && c != EOF);
}
"/*" {
// C-style comment
while(true)
{
int c = yyinput();
if(c == '*')
{
int next = yyinput();
if(next == '/')
{
break;
}
else
{
unput(next);
}
}
else if(c == EOF)
{
parser->warning("EOF in comment");
break;
}
}
}
{WS}*(\\{WS}*{NL})? {
size_t len = strlen(yytext);
for(size_t i = 0; i < len; ++i)
{
if(yytext[i] == '\\')
{
parser->continueLine();
}
}
}
{NL}|; {
return ';';
}
\" {
// "..."-type strings
string s;
while(true)
{
int c = yyinput();
if(c == '"')
{
break;
}
else if(c == EOF)
{
parser->warning("EOF in string");
break;
}
else if(c == '\\')
{
int next = yyinput();
switch(next)
{
case '\\':
case '"':
{
s += static_cast<char>(next);
break;
}
default:
{
s += static_cast<char>(c);
unput(next);
}
}
}
else
{
s += static_cast<char>(c);
}
}
yylvalp->clear();
yylvalp->push_back(s);
return ICE_STORM_STRING;
}
\' {
// '...'-type strings
string s;
while(true)
{
int c = yyinput();
if(c == '\'')
{
break;
}
else if(c == EOF)
{
parser->warning("EOF in string");
break;
}
else
{
s += c;
}
}
yylvalp->clear();
yylvalp->push_back(s);
return ICE_STORM_STRING;
}
. {
// Simple strings
string s;
s += yytext[0];
while(true)
{
int c = yyinput();
if(c == EOF)
{
break;
}
else if(isspace(c) || c == ';')
{
unput(c);
break;
}
s += static_cast<char>(c);
}
yylvalp->clear();
yylvalp->push_back(s);
StringTokenMap::const_iterator pos = keywordMap.find(s);
return pos != keywordMap.end() ? pos->second : ICE_STORM_STRING;
}
%%
namespace IceStorm {
//
// initScanner() fills the keyword map with all keyword-token pairs.
//
void
initScanner()
{
keywordMap["help"] = ICE_STORM_HELP;
keywordMap["quit"] = ICE_STORM_EXIT;
keywordMap["exit"] = ICE_STORM_EXIT;
keywordMap["current"] = ICE_STORM_CURRENT;
keywordMap["create"] = ICE_STORM_CREATE;
keywordMap["destroy"] = ICE_STORM_DESTROY;
keywordMap["link"] = ICE_STORM_LINK;
keywordMap["unlink"] = ICE_STORM_UNLINK;
keywordMap["links"] = ICE_STORM_LINKS;
keywordMap["topics"] = ICE_STORM_TOPICS;
keywordMap["replica"] = ICE_STORM_REPLICA;
keywordMap["subscribers"] = ICE_STORM_SUBSCRIBERS;
}
}
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