#include <parser.h>

Inheritance diagram for Pol::Bscript::SmartParser:

Public Member Functions
	SmartParser ()

virtual	~SmartParser ()

bool	callingMethod (CompilerContext &ctx)

int	getArgs (Expression &expr, CompilerContext &ctx)

virtual int	getArrayElements (Expression &expr, CompilerContext &ctx)=0

virtual int	getDictionaryMembers (Expression &expr, CompilerContext &ctx)=0

virtual int	getFunctionPArgument (Expression &expr, CompilerContext &ctx, Token *tok)=0

virtual int	getMethodArguments (Expression &expr, CompilerContext &ctx, int &nargs)=0

virtual int	getNewArrayElements (Expression &expr, CompilerContext &ctx)=0

virtual int	getStructMembers (Expression &expr, CompilerContext &ctx)=0

virtual int	getToken (CompilerContext &ctx, Token &token, Expression *expr=NULL) POL_OVERRIDE

virtual int	getUserArgs (Expression &expr, CompilerContext &ctx, bool inject_jsr=true)=0

int	IIP (Expression &expr, CompilerContext &ctx, unsigned expr_flags)

int	IP (Expression &expr, char *s)

int	IP (Expression &expr, CompilerContext &ctx)

virtual int	isFunc (Token &tok, ModuleFunction **v)=0

virtual int	isLegal (Token &tok)

virtual int	isOkay (const Token &token, BTokenType last_type)

virtual int	isUserFunc (Token &tok, UserFunction **userfunc)

SmartParser &	operator= (const SmartParser &)

virtual int	parseToken (CompilerContext &ctx, Expression &expr, Token *) POL_OVERRIDE

Public Member Functions inherited from Pol::Bscript::Parser
	Parser ()

virtual	~Parser ()

int	IP (Expression &expr, char *s)

Parser &	operator= (const Parser &)

virtual int	peekToken (const CompilerContext &ctx, Token &token, Expression *expr=NULL)

virtual int	recognize (Token &tok, const char buf, const char *s)

virtual int	recognize_binary (Token &tok, const char buf, const char *s)

virtual bool	recognize_reserved_word (Token &tok, const char *buf)

virtual int	recognize_unary (Token &tok, const char *buf)

void	reinit (Expression &ex)

void	setQuiet (int x)

virtual int	tryBinaryOperator (Token &tok, CompilerContext &ctx)

virtual int	tryNumeric (Token &tok, CompilerContext &ctx)

virtual int	tryOperator (Token &tok, const char buf, const char s, Operator opList, int n_ops, char *opbuf)

virtual int	tryUnaryOperator (Token &tok, CompilerContext &ctx)

Protected Member Functions
virtual int	tryLiteral (Token &tok, CompilerContext &ctx) POL_OVERRIDE

Protected Attributes
class ModuleFunction *	modfunc_

UserFunction *	userfunc_

Additional Inherited Members
Static Public Member Functions inherited from Pol::Bscript::Parser
static void	write_words (std::ostream &os)

Public Attributes inherited from Pol::Bscript::Parser
char	buffer [51]

bool	contains_tabs

ParseError	err

char	ext_err [50]

int	quiet

Detailed Description

Definition at line 150 of file parser.h.

Constructor & Destructor Documentation

virtual Pol::Bscript::SmartParser::~SmartParser ( )

inlinevirtual

Definition at line 153 of file parser.h.

References POL_OVERRIDE.

Pol::Bscript::SmartParser::SmartParser ( )

inline

Definition at line 162 of file parser.h.

Member Function Documentation

bool Pol::Bscript::SmartParser::callingMethod ( CompilerContext & ctx )

Definition at line 2053 of file parser.cpp.

References Pol::Bscript::Parser::getToken(), Pol::Bscript::Token::id, Pol::Bscript::TOK_FUNC, Pol::Bscript::TOK_IDENT, Pol::Bscript::TOK_LPAREN, and Pol::Bscript::TOK_USERFUNC.

int Pol::Bscript::SmartParser::getArgs	(	Expression &	expr,
		CompilerContext &	ctx
	)

Definition at line 1951 of file parser.cpp.

References Pol::Bscript::Parser::err, Pol::Bscript::EXPR_FLAG_COMMA_TERM_ALLOWED, Pol::Bscript::EXPR_FLAG_RIGHTPAREN_TERM_ALLOWED, Pol::Bscript::EXPR_FLAG_SEMICOLON_TERM_ALLOWED, Pol::Bscript::Parser::getToken(), Pol::Bscript::Token::id, Pol::Bscript::ModuleFunction::nargs, Pol::Bscript::Parser::peekToken(), Pol::Bscript::PERR_MISSLPAREN, Pol::Bscript::PERR_NONE, Pol::Bscript::PERR_TOOFEWARGS, Pol::Bscript::PERR_TOOMANYARGS, Pol::Bscript::TOK_COMMA, Pol::Bscript::TOK_LPAREN, Pol::Bscript::TOK_RPAREN, and Pol::Bscript::TOK_SEMICOLON.

virtual int Pol::Bscript::SmartParser::getArrayElements	(	Expression &	expr,
		CompilerContext &	ctx
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

virtual int Pol::Bscript::SmartParser::getDictionaryMembers	(	Expression &	expr,
		CompilerContext &	ctx
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

virtual int Pol::Bscript::SmartParser::getFunctionPArgument	(	Expression &	expr,
		CompilerContext &	ctx,
		Token *	tok
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

virtual int Pol::Bscript::SmartParser::getMethodArguments	(	Expression &	expr,
		CompilerContext &	ctx,
		int &	nargs
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

virtual int Pol::Bscript::SmartParser::getNewArrayElements	(	Expression &	expr,
		CompilerContext &	ctx
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

virtual int Pol::Bscript::SmartParser::getStructMembers	(	Expression &	expr,
		CompilerContext &	ctx
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

int Pol::Bscript::SmartParser::getToken	(	CompilerContext &	ctx,
		Token &	token,
		Expression *	pexpr = `NULL`
	)

virtual

Some identifiers are functions (user-defined or module-defined) these are recognized here. HOWEVER, in some cases these should be ignored - particularly, after the "." operator and its ilk. For example, if the LEN function is defined, "print a.len;" should still be valid (assuming A is a variable with a 'len' member). In these cases, the operator in question will be at the top of the TX stack. So, if we find this operator there, we won't check for functions. This is also the perfect opportunity to morph would-be identifiers into strings, or "member names" if that turns out the way to go. (Normally, we would emit TOK_IDENT(left) TOK_IDENT(right) TOK_MEMBER. The problem here is that TOK_IDENT(left) is seen as a variable (quite rightly), but so is TOK_IDENT(right), which is wrong. We used to transform this in addToken, but this is better I think.)

Note: let's suppose.. an overridden getToken is really smart, and figures out if IDENTS are variable names, verbs, functions, or labels. To this end it pulls out the ':' if necessary. TYP_OPERAND, TOK_VARNAME TYP_FUNC, TOK_MID, <– TYP_OPERAND for purposes of legality TYP_PROC, TOK_PRINT, TYP_LABEL, (don't care)

IP still does the same thing only it no longer looks for isVerb. have the new getToken put, say, the verb number in lval, so we now have an array element number.

See also: Parser::getToken( CompilerContext& ctx, Token& token )

Reimplemented from Pol::Bscript::Parser.

Definition at line 1922 of file parser.cpp.

References Pol::Bscript::Parser::getToken(), Pol::Bscript::Token::id, Pol::Bscript::TOK_ADDMEMBER, Pol::Bscript::TOK_CHKMEMBER, Pol::Bscript::TOK_DELMEMBER, Pol::Bscript::TOK_IDENT, Pol::Bscript::TOK_MEMBER, Pol::Bscript::TOK_STRING, and Pol::Bscript::Expression::TX.

virtual int Pol::Bscript::SmartParser::getUserArgs	(	Expression &	expr,
		CompilerContext &	ctx,
		bool	inject_jsr = `true`
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

int Pol::Bscript::SmartParser::IIP	(	Expression &	expr,
		CompilerContext &	ctx,
		unsigned	flags
	)

if comma terminator is allowed, (reading args, or declaring variables) leaves the terminator/comma. if comma term not allowed, eats the semicolon. if right paren allowed, leaves the right paren.

Note: (obviously, this function's behavior needs some work!)

Definition at line 2076 of file parser.cpp.

Referenced by Pol::Bscript::Compiler::getUserArgs(), and Pol::Bscript::Compiler::readexpr().

int Pol::Bscript::SmartParser::IP	(	Expression &	expr,
		char *	s
	)

int Pol::Bscript::SmartParser::IP	(	Expression &	expr,
		CompilerContext &	ctx
	)

Definition at line 2466 of file parser.cpp.

References Pol::Bscript::EXPR_FLAG_SEMICOLON_TERM_ALLOWED, and Pol::Bscript::Parser::reinit().

virtual int Pol::Bscript::SmartParser::isFunc	(	Token &	tok,
		ModuleFunction **	v
	)

pure virtual

Implemented in Pol::Bscript::Compiler.

int Pol::Bscript::SmartParser::isLegal ( Token & tok )

inlinevirtual

Reimplemented in Pol::Bscript::Compiler.

Definition at line 190 of file parser.h.

int Pol::Bscript::SmartParser::isOkay	(	const Token &	token,
		BTokenType	last_type
	)

virtual

Definition at line 1590 of file parser.cpp.

References Pol::Bscript::Token::id, INFO_PRINT, Pol::Bscript::Parser::quiet, Pol::Bscript::TOK_LBRACE, Pol::Bscript::TYP_FUNC, Pol::Bscript::TYP_FUNCREF, Pol::Bscript::TYP_METHOD, Pol::Bscript::TYP_OPERAND, Pol::Bscript::TYP_TESTMAX, Pol::Bscript::TYP_USERFUNC, and Pol::Bscript::Token::type.

int Pol::Bscript::SmartParser::isUserFunc	(	Token &	tok,
		UserFunction **	userfunc
	)

inlinevirtual

Reimplemented in Pol::Bscript::Compiler.

Definition at line 194 of file parser.h.

SmartParser& Pol::Bscript::SmartParser::operator= ( const SmartParser & )

inline

Definition at line 163 of file parser.h.

References POL_OVERRIDE.

int Pol::Bscript::SmartParser::parseToken	(	CompilerContext &	ctx,
		Expression &	expr,
		Token *	token
	)

virtual

Implements Pol::Bscript::Parser.

Definition at line 1681 of file parser.cpp.

int Pol::Bscript::SmartParser::tryLiteral	(	Token &	tok,
		CompilerContext &	ctx
	)

protectedvirtual

Like Parser::tryLiteral, with extra elements supported

Labels. A label is an ident operand, followed by a colon, followed by either whitespace or end-of-file. Note, this definition just happens to exclude ':=' and '::', which is important.