minor performance tuning, notably for Bytes.add (e.g. YXML output);

revert 90f6e541e926, which has become pointless thanks to df85df6315af;

clarified signature and modules;

clarified files;

drop pointless print_mode operations Output.output / Output.escape;

clarified signature: prefer explicit type Bytes.T;

clarified signature, roughly following Isabelle/Scala;

clarified print mode "latex": no longer impact Output/Markup/Pretty operations; renamed Output.output to Output.output_; removed Output.escape;

tuned comments, following Isabelle/ML;

tuned module structure;

tuned;

clarified unbreakable latex output: Pretty.unformatted and (Pretty.string_of o Pretty.unbreakable) should coincide, but are produced by quite different means;

clarified signature;

tuned signature;

tuned;

minor performance tuning, following Isabelle/Scala;

tuned;

tuned signature;

more scalable;

tuned;

eliminate print mode "code_presentation" thanks to value-oriented Pretty.T operations;

NEWS: value-oriented Pretty.T;

proper formal sections;

tuned signature: more options;

clarified Pretty.markup_block: use value-oriented YXML.output_markup, with final re-interpretation via print_mode in output_tree; clarified Pretty.symbolic: always use YXML.output_markup;

minor performance tuning;

unused;

prefer static YXML.output_markup_only (without print_mode): Output.status is only relevant for PIDE (with print_mode "isabelle_process");

clarified signature: more explicit type output_ops: default via print_mode;

discontinued unused global variable (see also following bf465f335e85);

tuned signature;

clarified modules (see also ea7c2ee8a47a);

clarified signature: more explicit type "ops";

more thorough Protocol_Message.clean_output, following Isabelle/Scala;

more accurate output, following 3f02bc5a5a03;

clarified signature;

clarified signature;

misc tuning and clarification;

proper signature (amending 0f820da558f9);

more accurate output: observe depth as in "prune" operation;

clarified signature, following 1f718be3608b: Pretty.str is now value-oriented;

clarified signature and modules;

tuned;

clarified Pretty.T vs. output tree (following Isabelle/Scala): Output.output_width (via print_mode) happens during formatting, instead of construction; minor performance tuning: omit block_length for Pretty.symbolic and Pretty.unformatted;

clarified signature: type ML_Pretty.pretty coincides with PolyML.pretty;

clarified signature (see also 8bef51521f21);

tuned signature;

more accurate Default_Metric;

tuned signature;

clarified output_spaces, based on Output.output_width; tuned add_spaces;

clarified modules: enable pretty.ML to use XML/YXML more directly;

removed unused operation (reverting 4660b0409096);

clarified modules;

clarified signature;

tuned: prefer Symbol.spaces;

tuned whitespace;

tuned;

more NEWS;

proper string syntax (amending 70076ba563d2);

avoid redundant XML.blob: Bytes.contents consist of larger chunks;

minor performance tuning: avoid many small strings, notably in File_Stream.output;

A bit of tidying

merged

More tidying of old proofs

more scalable pretty printing: avoid exception String.Size at command "value" (line 33 of "$AFP/Iptables_Semantics/Examples/SQRL_Shorewall/Analyze_SQRL_Shorewall.thy") in AFP/c69af9cd3390;

more specific "args" syntax, to support more markup for syntax consts;

more direct notation;

more specific "args" syntax, to support more markup for syntax consts;

proper definition to avoid failure of HOL-Codegenerator_Test (amending 3d9e7746d9db);

further attempts at markup for monad notation;

more markup for syntax consts;

stop web server on close;

better results for terminated jobs;

more robust: clean up unfinished jobs on init, e.g. if build_manager process was forcefully terminated;

manage runner state properly (amending be4c1fbccfe8);

merged

More tidying of old proofs

more precise bound

merged

get rid of manual T_f defs

NEWS and documentation;

merged

use nicer notation, following 783406dd051e;

merged

A bit more tidying

more markup for syntax consts;

clarified Syntax.is_const (after 43c4817375bf): exclude logical consts from 'syntax_consts' / 'syntax_types', e.g. relevant for @{syntax_const} antiquotation;

use nicer notation, following 783406dd051e;

proper translation for "_qprod", following "_qsum" (see also e14b89d6ef13 and fa7d27ef7e59);

tuned: prefer notation for Pure.type;

tuned whitespace;

tuned;

tuned, following be8c0e039a5e;

more markup for syntax consts;

proper flags (amending 1319c729c65d): abbrevs are allowed, free variables are disallowed;

Some tidying