Argtype descriptions name a literal parameter's cost, a phase's error is the phase's report, the ^-code table's grave-accent and dieresis rows (from dev ee86ca467512)

mac/character.h

@@ -62,7 +62,7 @@ std::map<std::string, std::pair<std::string, std::string>> diacritics {
     {"h", {"0302", "circumflex (hat)"}},
     {"~", {"0303", "tilde"}},
     {"-", {"0304", "macron"}},
-    {"\"", {"0308", "diaresis"}},
+    {"\"", {"0308", "dieresis"}},
 //   {"v", {"0305", "vinculum"}},
     {"b", {"0306", "breve"}},
     {"d", {"0307", "dot above"}},