rtemis.core NEWS

Version 0.4.6

• The input-schema contract gains a fifth rule: no description may spell a value the way R does. NULL, TRUE, FALSE, NA and the @property accessor are R, not JSON; a reader told “NULL = unweighted” who writes NULL produces an invalid document. Say what the absent value means – “Unset leaves the cases unweighted” – and leave the R spelling to the roxygen @param.
• assert_description_language(): the contract’s two prose rules on their own. assert_config_contract() governs only what a caller-authored config may demand, so records and results – which publish prose too – had no gate at all.
• bounded_double_property() is removed; use prop_float(). It built a bare new_property() with no spec, so prop_spec() returned NULL and its bounds never reached the generated JSON Schema, leaving a class and its published schema free to disagree. It also rendered infinite bounds closed ([0, Inf]) while rejecting infinities, never validated its own bounds, and typed its value class_double, rejecting the integers jsonlite::fromJSON() produces for whole numbers. prop_float() covers the same intervals via min/max and exclusive_min/exclusive_max.
• check_bounded_double_scalar() and check_bounded_integer_scalar(), with check_optional_* counterparts. Bounds are arguments rather than fixed in the function name. The double check takes lower, upper, lower_open and upper_open, mirroring prop_float(); the integer check takes inclusive bounds. An infinite bound is reported and enforced open – [0, Inf) – so the double check rejects Inf/-Inf like the property it mirrors. Both validate their own bounds first, so an NA or inverted bound is a structured rtemis error naming the bad bound rather than a base R comparison failure.

Version 0.4.5

• assert_config_contract(), moved here from rtemis’s data-raw/. The schema registry has more than one producer, and only rtemis was holding itself to the contract: rtemis.draw had been shipping chart/* documents whose descriptions named R constructors, which nothing caught because the gate lived in the other package’s build script. Exported so both call the same function; the rule predicates stay internal.
• New rule: a config description may not name an R construct. The corpus is read by R, the Rust CLI, the browser and a model that writes no code, so a description ending “See setup_GLMNET.” spends every reader’s attention on a function only one of them can call. Matched by construct, not taste: setup_X, pkg::fn and .list_to_X are refused; prose naming a package – “Elastic net (glmnet)” – says what the algorithm is and stays.
• The one structural key a config may require is a dispatcher’s discriminator. The rule and its message had allowed “the discriminator and payload”, the payload being a key under which a family nested its variant’s settings. No family nests them any more – settings are siblings of the discriminator, so the name alone is a variant with every default. structural keeps its signature; only what it is expected to carry changed.

Version 0.4.4

• write_JSONSchema() and write_lines(), moved here from rtemis. The schema registry has more than one producer, so a document’s shape belongs to the registry rather than to whichever package emitted it. Keywords are ordered on write; digits is an argument, I(17) where a double must round-trip exactly.

Version 0.4.3

• License: BSD 3-Clause, replacing GPL (>= 3). Imports are data.table (MPL-2.0), S7 (MIT) and methods (part of R). The change unblocks rtemis itself, which cannot be permissively licensed while it imports a GPL package.
• HTML construction: html_tag() and the html_div(), html_p(), html_span(), html_strong(), html_ul(), html_li() constructors, with html_escape() and html_raw(). Elements are character strings rather than a node tree, which is what fmt(output_type = "html") already emits and what every consumer wants to embed or send over the wire. Text children are escaped and markup children are not: a bare string is text, html_raw() marks a string that is already markup, and the constructors mark what they built. paste() drops that marker, so markup assembled with paste() is passed on as html_raw(paste(...)). Output matches htmltools for the same input, except that a child’s own line breaks are indented with it, so indentation always tracks nesting depth; HTML collapses that whitespace, so the rendered result is identical. Packages that only built small fragments of HTML can drop htmltools, and with it a GPL dependency.
• S7 property factories: prop_boolean(), prop_integer(), prop_float(), prop_string(), prop_bag() and prop_const(), with prop_spec() to read a property’s declaration back. One call carries the property’s type, default, bounds, enum, container and description, and its S7 validator is generated from that declaration rather than written by hand. Because the declaration stays attached to the property, prop_spec() can recover it from a class definition to generate documentation, a JSON Schema, or a defaults artifact. These succeed the hand-written properties in R/03_S7_properties.R, which remain: prob_scalar is prop_float(min = 0, max = 1) and optional_character_scalar is prop_string(nullable = TRUE).

Version 0.4.2

• get_output_type() can be overridden, so ANSI output is available in non-interactive sessions (scripts, Rscript, the rtemis CLI’s R backend), which previously always resolved to “plain”. With output_type = NULL the resolution order is: filename (forces “plain”), the new rtemis.output_type option, the new RTEMIS_OUTPUT_TYPE environment variable, NO_COLOR (forces “plain”), then “ansi” when interactive and “plain” otherwise. The option suits .Rprofile; the environment variable lets a parent process decide per invocation. Unrecognized values are ignored rather than raising, so a typo falls through to the next rule instead of aborting a running job. The resolved type also selects the progress display, so forcing “ansi” where output is captured to a file yields carriage-return-rewritten lines, not just escape codes.
• repr_ls() shows an S7 element whose repr() is a single line on the element’s own line, like a value, rather than breaking to the next line. The break exists so that every line of a multi-line repr() carries the same pad, which a one-line repr() does not need; without this a one-line repr() also had to end in its own newline or the following element ran on after it. An element whose repr() fails is reported inline the same way.

Version 0.4.1

• abort() gains a data argument: a named list of structured fields attached to the signaled condition (e.g. data = list(status_code = 429L, provider = "anthropic")), retrievable by handlers via condition$<name>. Names may not collide with the built-in condition fields (message, parent, call, trace).
• fmt() and all its wrappers, and the show_df()/show_table()/ repr_ls() printers, default to output_type = NULL, resolved via get_output_type(): “ansi” in interactive sessions, “plain” otherwise. Previously they defaulted to “ansi” unconditionally, emitting raw escape codes in scripts, knitr and tests. Explicitly passing “ansi”, “html” or “plain” behaves as before; NULL can now be forwarded through the whole formatting stack, so callers that only pass output_type through no longer need to resolve it themselves.
• get_output_type() called with no arguments is environment-aware; previously it returned “ansi” unconditionally because its default skipped the NULL branch.
• The progress completion glyph follows the handle’s resolved output_type, so handles created with output_type = "plain" no longer emit an ANSI-bold checkmark in interactive sessions.
• progress_update() validates label, current and add with the same condition classes as progress_begin().

Version 0.4.0

• Nested progress subsystem (R/progress.R), replacing the ecosystem’s last use of cli (cli::cli_progress_along): a progress_begin() / progress_update() / progress_end() handle API plus progress_lapply(), a near-drop-in wrapper with lapply-style X/FUN arguments so ... forwarding never collides with the wrapper’s own parameters.
• Console rendering: a single status line rewritten in place with a color-pulsing spinner (designs selectable via options(rtemis.progress_spinner = ): "dots", "dot", "blocks") and a breadcrumb of all nested levels (Outer 2/5 > Tuning 7/30 ETA 0:41). Non-interactive/plain output prints one begin and one completion line instead. Redraws are throttled via options(rtemis.progress_throttle = ).
• Message-sink integration: progress events are forwarded through the set_msg_sink() envelope with level = "progress" and node fields (node_id, parent_id, kind, status, current, total). Sink events fire regardless of verbosity, which gates only the console renderer; "update" events honor the throttle.
• Completion lines report uniformly completed nested loops as a multiplication chain (Outer 2/2 x Tuning 24/24 done in 0:41), recursively. A nested level is included only when all of its runs completed fully with identical label and total; otherwise the chain is omitted rather than misleading.
• msg()/msg0()/msgstart()/msgdone()/suggest() clear a visible progress line before writing, so log output never collides with an in-place redraw.
• progress_lapply() intercepts message()/warning() conditions from user code and clears the status line before they print. Direct stdout writes (cat(), print()) cannot be intercepted; new progress_clear() is the escape hatch for those.

Version 0.3.1

• msg()/msg0() now close a pending msgstart() line before writing, so log lines and error stamps no longer collide with unfinished progress text (new internal line_open state).
• pcat(): pad argument support.
• Color updates: green is now teal; the previous green moved to new juniper; added terracotta; adjusted light_mauve and success color.
• printls()/repr_ls() print class names single-quoted and use the primary class only, for consistent object of class '...' output.

Version 0.3.0

• export remaining internals used by rtemis
• migrated updated msg() with custom sink support from rtemis: allows for logging through rtemis.server to rtemislive
• headdot() renamed to collapse_head()

Version 0.2.0

New features

• New abort() dual-channel error signaler (in log.R): emits a styled one-line event to the operator console (most-specific class name + caller bracket) and signals a condition whose $message field is plain text - safe to serialize into JSON/HTML/any ANSI-unaware sink.
• abort() captures the call stack at the signal site and attaches it to the condition as $trace. Unlike base R’s traceback() (which only populates .Traceback for uncaught errors), $trace survives tryCatch() and travels with the condition - useful for server-side handlers that ship errors to a browser-side debug pane.
• New exported format_trace() helper: renders the $trace pairlist (or the condition itself) as a numbered, one-line-per-frame string.
• abort() resolves the user’s calling function via a stack walk that skips frames in this package and in base (tryCatch, doTryCatch, etc.). Both the console bracket and the condition’s $call field point to the same user frame - so R’s default error printer shows Error in my_func(x) : ... instead of bare Error: ..., regardless of how many check_* / clean_* wrappers sit between abort() and the caller.
• New info(), warn(), success(), dbg() log helpers, all routed through msg() for consistent timestamp + glyph + caller-bracket formatting.
• Error class hierarchy: every check_* / clean_* abort carries failure-mode classes (rtemis_null_input, rtemis_na_input, rtemis_type_error, rtemis_length_error, rtemis_range_error, rtemis_value_error, rtemis_dependency_error), all inheriting from rtemis_input_error - callers can catch input failures broadly or narrow to a specific failure mode via tryCatch().
• New global option rtemis.show_caller (default TRUE): set to FALSE in .Rprofile to suppress the caller bracket on all log lines for the session.
• format_caller() now auto-suppresses non-name expressions (anonymous function literals, inline do.call-style invocations) - no more [function (ws, req) {...] brackets cluttering logs from callback-heavy code.

Breaking changes

• All check_* and clean_* functions now signal errors via abort() with structured condition classes rather than via cli::cli_abort(). Error message text changes from cli’s {.var x} styling to plain backtick-quoted names (e.g. `x` cannot be NULL.). Code that matches on exact error message strings will need to be updated. Generic tryCatch(error = ...) handlers continue to work; handlers keyed on the previous rlang_error / cli-specific classes will need to be updated to the new rtemis_error hierarchy (which also gains structured failure-mode subclasses).

Version 0.1.0

• Added custom S7 properties set
• Expanded check_* function set

Version 0.0.3

• Initial CRAN release