expr_parser Namespace Reference

Classes
struct	ExprToken
	A single expression token holding its type and optional numeric value. More...
class	ExprLexer
	Lexer for constant integer expressions. More...
class	ExprParser
	Recursive-descent parser and evaluator for constant integer expressions. More...

Enumerations
enum class	ExprTokenType {   END , NUMBER , PLUS , MINUS ,   MUL , DIV , MOD , LPAREN ,   RPAREN , PLUSEQ , MINUSEQ , XOR ,   OR , AND , LOGICAL_AND , LOGICAL_OR ,   NOT , EQ , NEQ , GT ,   GTE , LT , LTE , VARIABLE }
	Token types for the constant expression parser. More...

Variables
std::unordered_map< std::string, uint64_t >	vars
	Global variable map for the expression evaluator.

Enumeration Type Documentation

ExprTokenType

enum class expr_parser::ExprTokenType

strong

Token types for the constant expression parser.

Enumerator
END	end of expression
NUMBER	numeric literal
PLUS	'+'
MINUS	'-'
MUL	'*'
DIV	'/'
MOD	''
LPAREN	'('
RPAREN	')'
PLUSEQ	'+='
MINUSEQ	'-='
XOR	'^'
OR	'|'
AND	'&'
LOGICAL_AND	'&&'
LOGICAL_OR	'||'
NOT	'!'
EQ	'=='
NEQ	'!='
GT	'>'
GTE	'>='
LT	'<'
LTE	'<='
VARIABLE	named variable reference

Definition at line 16 of file expr.hpp.

Variable Documentation

vars

std::unordered_map<std::string, uint64_t> expr_parser::vars

inline

Global variable map for the expression evaluator.

Definition at line 50 of file expr.hpp.

Referenced by expr_parser::ExprParser::parseFactor().