doom_py/src/vizdoom/tools/re2c/scanner.cc [13:92]:
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extern YYSTYPE yylval;

#ifndef MAX
#define MAX(a,b) (((a)>(b))?(a):(b))
#endif

#define	BSIZE	8192

#define	YYCTYPE		unsigned char
#define	YYCURSOR	cursor
#define	YYLIMIT		lim
#define	YYMARKER	ptr
#define	YYFILL(n)	{cursor = fill(cursor);}

#define	RETURN(i)	{cur = cursor; return i;}

namespace re2c
{

Scanner::Scanner(const char *fn, std::istream& i, std::ostream& o)
	: in(i)
	, out(o)
	, bot(NULL), tok(NULL), ptr(NULL), cur(NULL), pos(NULL), lim(NULL)
	, top(NULL), eof(NULL), tchar(0), tline(0), cline(1), iscfg(0), filename(fn)
{
    ;
}

char *Scanner::fill(char *cursor)
{
	if(!eof)
	{
		uint cnt = tok - bot;
		if(cnt)
		{
			memcpy(bot, tok, lim - tok);
			tok = bot;
			ptr -= cnt;
			cursor -= cnt;
			pos -= cnt;
			lim -= cnt;
		}
		if((top - lim) < BSIZE)
		{
			char *buf = new char[(lim - bot) + BSIZE];
			memcpy(buf, tok, lim - tok);
			tok = buf;
			ptr = &buf[ptr - bot];
			cursor = &buf[cursor - bot];
			pos = &buf[pos - bot];
			lim = &buf[lim - bot];
			top = &lim[BSIZE];
			delete [] bot;
			bot = buf;
		}
		in.read(lim, BSIZE);
		if ((cnt = in.gcount()) != BSIZE )
		{
			eof = &lim[cnt]; *eof++ = '\0';
		}
		lim += cnt;
	}
	return cursor;
}



int Scanner::echo()
{
    char *cursor = cur;
    bool ignore_eoc = false;
    int  ignore_cnt = 0;

    if (eof && cursor == eof) // Catch EOF
	{
    	return 0;
	}

    tok = cursor;
echo:
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doom_py/src/vizdoom/tools/re2c/scanner.re [12:109]:
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extern YYSTYPE yylval;

#ifndef MAX
#define MAX(a,b) (((a)>(b))?(a):(b))
#endif

#define	BSIZE	8192

#define	YYCTYPE		unsigned char
#define	YYCURSOR	cursor
#define	YYLIMIT		lim
#define	YYMARKER	ptr
#define	YYFILL(n)	{cursor = fill(cursor);}

#define	RETURN(i)	{cur = cursor; return i;}

namespace re2c
{

Scanner::Scanner(const char *fn, std::istream& i, std::ostream& o)
	: in(i)
	, out(o)
	, bot(NULL), tok(NULL), ptr(NULL), cur(NULL), pos(NULL), lim(NULL)
	, top(NULL), eof(NULL), tchar(0), tline(0), cline(1), iscfg(0), filename(fn)
{
    ;
}

char *Scanner::fill(char *cursor)
{
	if(!eof)
	{
		uint cnt = tok - bot;
		if(cnt)
		{
			memcpy(bot, tok, lim - tok);
			tok = bot;
			ptr -= cnt;
			cursor -= cnt;
			pos -= cnt;
			lim -= cnt;
		}
		if((top - lim) < BSIZE)
		{
			char *buf = new char[(lim - bot) + BSIZE];
			memcpy(buf, tok, lim - tok);
			tok = buf;
			ptr = &buf[ptr - bot];
			cursor = &buf[cursor - bot];
			pos = &buf[pos - bot];
			lim = &buf[lim - bot];
			top = &lim[BSIZE];
			delete [] bot;
			bot = buf;
		}
		in.read(lim, BSIZE);
		if ((cnt = in.gcount()) != BSIZE )
		{
			eof = &lim[cnt]; *eof++ = '\0';
		}
		lim += cnt;
	}
	return cursor;
}

/*!re2c
zero    = "\000";
any     = [\000-\377];
dot     = any \ [\n];
esc     = dot \ [\\];
istring = "[" "^" ((esc \ [\]]) | "\\" dot)* "]" ;
cstring = "["     ((esc \ [\]]) | "\\" dot)* "]" ;
dstring = "\""    ((esc \ ["] ) | "\\" dot)* "\"";
sstring = "'"     ((esc \ ['] ) | "\\" dot)* "'" ;
letter  = [a-zA-Z];
digit   = [0-9];
number  = "0" | ("-"? [1-9] digit*);
name    = (letter|"_") (letter|digit|"_")*;
cname   = ":" name;
space   = [ \t];
eol     = ("\r\n" | "\n");
config  = "re2c" cname+;
value   = [^\r\n; \t]* | dstring | sstring;
*/

int Scanner::echo()
{
    char *cursor = cur;
    bool ignore_eoc = false;
    int  ignore_cnt = 0;

    if (eof && cursor == eof) // Catch EOF
	{
    	return 0;
	}

    tok = cursor;
echo:
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