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package main
type MkToken struct {
Text string // Used for both literals and varuses.
Varuse *MkVarUse
}
type MkVarUse struct {
varname string
modifiers []string // E.g. "Q", "S/from/to/"
}
func (vu *MkVarUse) Mod() string {
mod := ""
for _, modifier := range vu.modifiers {
mod += ":" + modifier
}
return mod
}
// Whether the varname is interpreted as a variable name (the usual case)
// or as a full expression (rare).
func (vu *MkVarUse) IsExpression() bool {
if len(vu.modifiers) == 0 {
return false
}
mod := vu.modifiers[0]
return mod == "L" || hasPrefix(mod, "?")
}
func (vu *MkVarUse) IsQ() bool {
mlen := len(vu.modifiers)
return mlen > 0 && vu.modifiers[mlen-1] == "Q"
}
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