spudplate::Parser Class Reference

Recursive-descent parser that produces an AST from a token stream. More...

#include <parser.h>

Public Member Functions
	Parser (Lexer lexer)
	Constructs a Parser that reads tokens from the given Lexer.
Program	parse ()
	Parses the full program and returns the top-level AST node.
ExprPtr	parseExpression ()
	Parses a single expression starting at the current token.
StmtPtr	parseAsk ()
	Parses an ask statement.
StmtPtr	parseLet ()
	Parses a let statement.
StmtPtr	parseAssign ()
	Parses a bare assignment statement (name = expr).
StmtPtr	parseMkdir ()
	Parses a mkdir statement.
StmtPtr	parseFile ()
	Parses a file statement.
StmtPtr	parseRepeat ()
	Parses a repeat block.
StmtPtr	parseIf ()
	Parses an if block.
StmtPtr	parseCopy ()
	Parses a copy statement.
StmtPtr	parseInclude ()
	Parses an include statement.
StmtPtr	parseRun ()
	Parses a run statement.
StmtPtr	parseStatement ()
	Dispatches to the appropriate statement parser based on the current token.

Detailed Description

Recursive-descent parser that produces an AST from a token stream.

Construct with a Lexer over the source text, then call parse() to obtain a Program. Throws ParseError on any syntax violation.

Individual statement parsers (parseAsk(), parseLet(), etc.) are public so they can be exercised directly in unit tests.