Struct MacroExpandOptions 

pub struct MacroExpandOptions {
    pub env_fallback: bool,
    pub dollar_escape: bool,
    pub suppress_warnings: bool,
}

Resolution options for the macLib expansion engine (expand_macros).

Fields

env_fallback: bool

Fall back to the process environment when a name is unset, matching C macCreateHandle(&h, environ). The .db parser leaves this off (its substitutions come only from the dbLoadRecords / .substitutions macro map); dbLoadGroup and autosave turn it on.

dollar_escape: bool

Treat $$ as a literal $. An autosave .req convenience, NOT a macLib behavior — C macLib leaves $$ verbatim ($ is only special before (/{), so the .db parser leaves it off.

suppress_warnings: bool

C macSuppressWarning / FLAG_SUPPRESS_WARNINGS (macCore.c:155-168). It silences the macLib: diagnostics AND changes the text: a suppressed undefined reference is written back as $(name) where a warned one is $(name,undefined) (refer, macCore.c:920-928). Off is C’s default; the .db loader turns it on from dbQuietMacroWarnings (dbLexRoutines.c:58, :273) and msi turns it on outright (msi.cpp:154).

Trait Implementations

impl Clone for MacroExpandOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for MacroExpandOptions

impl Debug for MacroExpandOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MacroExpandOptions

fn default() -> Self

Returns the “default value” for a type.