This is referenced in matching types using
partial matching of strings (exactsubstringsmatch,
numericStringSubstringsMatch, ...). I am fairly new to these subjects
and do not understand fully how they operate.
What do you mean which "matching types"? "Matching rules" or
"attribute types"?
Is there a way to correct this?
Depends on what you really want to achieve. Can you tell us?
Looking into RFC 2252 and RFC 3698 I cannot imagine what you want.
Are the syntaxes and matching types
specified in a way that can be modified dynamically?
Syntaxes and their matching rules have to be coded in C. There's
no dynamic configuration for these.