operators.f90 File Reference

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Functions/Subroutines
logical function, public	evaluate_expression (expr, macros, val)
	Evaluates a preprocessor-style expression with macro substitution. Tokenizes the input expression, expands macros where appropriate, parses it according to operator precedence, and computes the integer result. Returns .true. if evaluation succeeded and the result is non-zero.
recursive integer function, public	parse_expression (tokens, ntokens, pos, macros)
	Parses a sequence of tokens starting at position pos as a full expression. Entry point for the recursive descent parser. Delegates to parse_or().
recursive integer function	parse_conditional (tokens, ntokens, pos, macros)
	Parses conditional expressions (?:). Right-associative.
recursive integer function	parse_or (tokens, ntokens, pos, macros)
	Parses logical OR expressions (||).
recursive integer function	parse_and (tokens, ntokens, pos, macros)
	Parses logical AND expressions (&&).
recursive integer function	parse_bitwise_or (tokens, ntokens, pos, macros)
	Parses bitwise OR expressions (|).
recursive integer function	parse_bitwise_xor (tokens, ntokens, pos, macros)
	Parses bitwise XOR expressions (^).
recursive integer function	parse_bitwise_and (tokens, ntokens, pos, macros)
	Parses bitwise AND expressions (&).
recursive integer function	parse_equality (tokens, ntokens, pos, macros)
	Parses equality/inequality expressions (==, @param[in] tokens Array of tokens to parse @param[in] ntokens Number of valid tokens in the array @param[inout] pos Current parsing position (updated as tokens are consumed) @param[in] macros Defined macros for expansion anddefined()` checks.
recursive integer function	parse_relational (tokens, ntokens, pos, macros)
	Parses relational expressions (<, >, <=, >=).
recursive integer function	parse_shifting (tokens, ntokens, pos, macros)
	Parses shift expressions (<<, >>).
recursive integer function	parse_additive (tokens, ntokens, pos, macros)
	Parses additive expressions (+, -).
recursive integer function	parse_multiplicative (tokens, ntokens, pos, macros)
	Parses multiplicative expressions (*, /, %).
recursive integer function	parse_power (tokens, ntokens, pos, macros)
	Parses exponentiation (**). Right-associative.
recursive integer function	parse_unary (tokens, ntokens, pos, macros)
	Parses unary operators ( @param[in] tokens Array of tokens to parse @param[in] ntokens Number of valid tokens in the array @param[inout] pos Current parsing position (updated as tokens are consumed) @param[in] macros Defined macros for expansion anddefined()` checks.
recursive integer function	parse_atom (tokens, ntokens, pos, macros)
	Parses primary expressions: numbers, identifiers, defined(...), parentheses.