tiny.zen.FootnoteSet

1pub const Set = struct {2    definitions: []Definition,3    next_number: usize = 1,45    pub fn markFor(self: *Set, key: []const u8) ?Mark {6        const index = self.findIndex(key) orelse return null;7        const definition = &self.definitions[index];8        if (definition.number == 0) {9            definition.number = self.next_number;10            self.next_number += 1;11        }12        definition.references += 1;13        return .{14            .number = definition.number,15            .reference = definition.references,16        };17    }1819    pub fn hasReferences(self: Set) bool {20        for (self.definitions) |definition| {21            if (definition.active and definition.references != 0) return true;22        }23        return false;24    }2526    pub fn findIndex(self: Set, key: []const u8) ?usize {27        for (self.definitions, 0..) |definition, index| {28            if (definition.active and std.mem.eql(u8, definition.key, key)) return index;29        }30        return null;31    }32};

1/// Borrowed footnote set that assigns numbers in reference order.2pub const FootnoteSet = footnote.Set;