Symbol.source/OuterLex.source: more explicit do_recover argument;
scan: pass position;
removed obsolete prepare_command (now inlined in isar_syn.ML);
renamed prepare_command_failsafe to prepare_command, reports tokens;
load_thy: now based on ThyEdit operations, reports tokens and spans;
tuned;
(* $Id$ *)
ThyOutput.indent := 5;