centralized upper/lowercase name mangling

optional case enforcement

obsolete: no symbol identifiers remaining in Pure

prevent subscription in nested contexts explicitly -- at foundational and user level

cleanup

NEWS

use qualified name (was interpreted as a catch-all variable name)

add additional check to avoid selector formula right-hand side consisting of a nullary constructor getting interpreted as a discriminator formula

updated keywords;

clarified signature: load_file is still required internally;

merged

some support for session-qualified theories: allow to refer to resources via qualified name instead of odd file-system path;

support for long names in Scala;

tuned;

Discontinued old spark_open; spark_open_siv is now spark_open

suppress slightly odd completions of "real";

tuned proofs;

tuned proofs;

clarified exit sequence: prover is reset afterwards, no more output messages;

more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;

tuned;

some sanity checks for Isabelle sources;

prefer plain ASCII / latex over not-so-universal Unicode;

tuned whitespace;

proper Unix line termination;

require explicit 'document_files';

updated mkroot;

basic support for Mercurial command line tools;

clarified;

ignore malformed file names outright, e.g. .class files with dollar;