Pscal v3.0.0

Date: 2025-10-20

Highlights

New exsh front end – A Bash-compatible shell joins Pascal, CLike, Rea, and Tiny. exsh shares PSCAL’s builtin catalog, honours directory stacks, jobs, and traps, and now supports -c inline execution, parity-focused regression tests, and detailed debug logging.
Faster VM dispatch – Builtin lookups are now hash-indexed and the VM caches procedure symbols by bytecode address, trimming dispatch costs across every language while keeping optional-module detection stable.
Language feature growth – Pascal picks up goto/label support and compound assignment operators, while its dynamic array routines and Low/High intrinsics are hardened. Rea’s CLI gains --no-run and refined tracing, backed by expanded scope-verification suites.
Stronger tooling – Tests/run_all_tests auto-selects a writable temp directory and can be run from anywhere; the Rea harness survives set -u; library runners spin up local HTTP servers with consistent summaries.

New

Introduced the exsh shell front end with PSCAL builtin integration, Bash-style pipelines, directory-stack helpers, EXIT trap handling, and an opt-in debug log (Docs/exsh_debug_log.md).
Added Bash-compatible -c execution, logical-expression guards, and cached pipelines to exsh, improving benchmark parity and script ergonomics.
Pascal now accepts goto/label constructs, compound assignment operators, and ships an enhanced Blackjack example with CRT scoreboard tracking.
Added MStreamFromString so Pascal/CLike code can convert strings to memory streams without manual temp files—a prerequisite for socket helpers and new network demos.
Rea CLI adds --no-run for compile-only workflows alongside refined bytecode dumps and trace-head limits; new class/closure/module scope suites validate OOP semantics.

Improvements

Replaced the builtin registry with hash tables and cached procedure lookup metadata, preventing contention and shaving lookups for hot VM paths.
Thread helpers grow ThreadSpawnBuiltin, ThreadPoolSubmit, ThreadGetResult, ThreadGetStatus, ThreadSetName, ThreadLookup, ThreadStats, ThreadPause, ThreadResume, and ThreadCancel, letting exsh queue allow-listed VM builtins on worker threads while WaitForThread and the new worker-lookup helpers report their cached status codes. Documentation now includes sample transcripts and the explicit allowlist for threaded builtins.
Inlined shell loop guards, added owned-string helpers, and deferred exit handling in logical contexts to eliminate performance regressions observed in shellbench.
Updated SDL demos with corrected controls, shared font fallbacks, fast landscape rendering validation, and WASD zoom controls for the 3D bouncing balls showcase.
Expanded documentation: compiler flags, exsh debugging, and Rea programmer guidance all reflect the new workflows.
Tests/run_all_tests now establishes a writable TMPDIR, keeps network suites opt-in via RUN_NET_TESTS=1, and shells into the Tests/ directory so directory-stack parity stays stable.
Rea’s regression harness gracefully handles empty skip lists and argument manifests under set -u, preventing spurious macOS failures.

Fixed

Resolved numerous exsh correctness issues: errexit is preserved across traps, redirection backups no longer collide, IO-number parsing matches Bash, and directory stacks now mirror Bash output under differing $PWD roots.
Pascal dynamic array SetLength retains prior contents, Low/High operates on dynamic arrays, and multidimensional resizing no longer scrubs data.
Rea parser accepts type keywords as identifiers, constructor ordering is enforced, and cached bytecode invalidation respects binary timestamps.
Eliminated double frees and stale metadata introduced during the builtin registry refactor and guarded thread helper detection.
Corrected example glitches including Blackjack prompts, CRT colour artefacts, and SDL font paths.

Upgrade Notes

Rebuild with cmake -S . -B build -DRELEASE_BUILD=ON and cmake --build build to ensure all front ends pick up the hash-based registry and procedure caches. Clean builds are recommended for downstream packagers.
Tests/run_all_tests now defaults to RUN_NET_TESTS=0. Export RUN_NET_TESTS=1 (and optionally RUN_SDL=1) before invoking the script to exercise socket and HTTP fixtures as part of release verification.
Library regression suites (Tests/libs/run_all_tests.py) start local HTTP servers; when running inside restricted environments you may need elevated permissions (passable via --python or sandbox approvals).
exsh scripts share PSCAL’s builtin catalog; rebuild or redeploy extended modules (SQLite, yyjson, OpenAI, etc.) alongside the VM so optional capabilities remain discoverable via --dump-ext-builtins.
Threaded scripts should review the new Docs/threading.md guide. The worker pool still honours legacy handle-based APIs (WaitForThread, ThreadGetStatus, etc.), and Pascal’s Threading unit remains compatible—existing code keeps working while newer helpers add naming, metrics, and pool-size overrides.

Verification Checklist

cmake -S . -B build && cmake --build build
Tests/run_all_tests (optionally export RUN_NET_TESTS=1 RUN_SDL=1)
TMPDIR=$PWD/Tests/tmp python3 Tests/libs/run_all_tests.py (requires local socket permissions)
TMPDIR=$PWD/Tests/tmp python3 Tests/scope_verify/rea/rea_scope_test_harness.py
Spot-check flagship examples:
- build/bin/exsh Examples/exsh/pipeline
- build/bin/exsh Examples/exsh/parallel-check github.com example.com
- build/bin/pascal Examples/pascal/base/ThreadsProcPtrDemo
- build/bin/clike Examples/clike/base/thread_demo
- build/bin/rea Examples/rea/base/threads

What's Changed

Fix SDL quit flag deadlock by @emkey1 in #934
Sync Devel branch to main by @emkey1 in #985
Allow Pascal @ to take general lvalues by @emkey1 in #1035
Improve Mandelbrot thread scheduling by @emkey1 in #1036
Add realtime clock extended builtin by @emkey1 in #1037
Add CLI dumps for extended builtin inventory by @emkey1 in #1039
Adopt MIT license for PSCAL by @emkey1 in #1040
Add yyjson extended builtins by @emkey1 in #1038
Gate Rea terminal init behind PSCAL_INIT_TERM by @emkey1 in #1041
Add shared conditional preprocessor for extended builtin checks by @emkey1 in #1042
Devel Merge to main by @emkey1 in #1043
Exercise CLI options on all front ends by @emkey1 in #1044
Add clike demo for sqlite and yyjson extended builtins by @emkey1 in #1045
Skip run_with_timeout wrapper on Alpine by @emkey1 in #1046
Enhance Pascal weather JSON demo by @emkey1 in #1047
Add custom Xcode project generator by @emkey1 in #1049
Free weather_json HTTP response stream by @emkey1 in #1050
Fix Xcode project root path by @emkey1 in #1051
Fix Xcode header search path for generated project by @emkey1 in #1052
Fix Xcode generator version macros by @emkey1 in #1053
Fix quoting in Xcode project macros by @emkey1 in #1054
Make C-like AST type annotations optional by @emkey1 in #1055
Handle unquoted build metadata in Xcode by @emkey1 in #1056
Add Xcode runner target for configurable launch by @emkey1 in #1057
Revert "Add Xcode runner target for configurable launch" by @emkey1 in #1059
Add Xcode runner target for selectable PSCAL binaries by @emkey1 in #1058
Fix debug global linkage for Xcode targets by @emkey1 in #1060
Fix integer precision warnings by @emkey1 in #1061
Load Xcode runner config from default locations by @emkey1 in #1062
Clarify pascal args for Xcode runner by @emkey1 in #1063
Add SDL include paths to the Xcode project by @emkey1 in #1066
Revert "Add SDL include paths to the Xcode project" by @emkey1 in #1067
Seed SDL include paths for Xcode builds by @emkey1 in #1065
Include runner target in generated Xcode project by @emkey1 in #1068
Fix CASE codegen to handle multiple labels by @emkey1 in #1069
Add Rea OpenWeather forecast example by @emkey1 in #1070
Hoist OpenWeather mstreams out of branch scopes by @emkey1 in #1071
Fix Rea parser dropping function statements by @emkey1 in #1072
Add C-like scope verification harness by @emkey1 in #1073
Add scoped pattern matching and exception support to Rea by @emkey1 in #1075
Align clike scope tests with C semantics by @emkey1 in #1074
Fix struct initialization and printf translation by @emkey1 in #1076
Fix Rea vtable emission and class constant lookup by @emkey1 in #1078
Fix Rea scoping for grouped declarations by @emkey1 in #1079
Flatten Rea declaration groups before semantic analysis by @emkey1 in #1080
Fix object allocation to prevent Rea method demo segfault by @emkey1 in #1081
Fix Pascal local var registration for nested routines by @emkey1 in #1082
Fix MiscDemo date formatting and extend Pascal scope harness by @emkey1 in #1083
Update Pascal scope verification tests to reflect runtime behaviour by @emkey1 in #1084
Enhance Rea SDL landscape visuals by @emkey1 in #1085
Optimize water rendering in Rea SDL landscape demo by @emkey1 in #1086
Fix parameter scope lookup for Rea functions by @emkey1 in #1087
Expand Pascal scope verification coverage by @emkey1 in #1089
Accelerate landscape demo with new extended builtins by @emkey1 in #1088
Add landscape precompute builtins and sky rendering by @emkey1 in #1090
Fix SDL landscape setup and camera controls by @emkey1 in #1091
Improve SDL landscape input handling by @emkey1 in #1092
Fix SDL event watch install build error by @emkey1 in #1093
Handle movement keys via discrete input by @emkey1 in #1094
Fix SDL landscape movement key polling by @emkey1 in #1096
Pump SDL events before sampling landscape movement keys by @emkey1 in #1097
Restore SDL backend C implementation by @emkey1 in #1098
Add SDL input event watch implementation by @emkey1 in #1099
Fix SDL2 key handling and event watch setup by @emkey1 in #1100
Restore four-argument getmousestate support by @emkey1 in #1102
Fix printf formatting spacing and detect duplicate functions by @emkey1 in #1103
Implement include expansion for clike preprocessor by @emkey1 in #1104
Improve CLike control-flow scope isolation by @emkey1 in #1105
Restore Pascal write semantics without breaking Rea by @emkey1 in #1107
Fix C-like printf boolean formatting and disassembly expectations by @emkey1 in #1109
Fix import semantic duplication when analyzing modules by @emkey1 in #1110
Refactor openweather forecast scoping by @emkey1 in #1111
Add scope harnesses to CI pipeline by @emkey1 in #1112
Update bytecode cache location to ~/.pscal/bc_cache by @emkey1 in #1113
Fix variable_format demo entrypoint by @emkey1 in #1114
Devel by @emkey1 in #1115
Update weather examples to load OpenWeather API key from home config by @emkey1 in #1116
Add fallback to One Call 2.5 when 3.0 requires subscription by @emkey1 in #1117
Add 3D bouncing balls demo with optimized builtin by @emkey1 in #1118
Define local bar helper for SDL multibouncing balls 3D demo by @emkey1 in #1119
Fix SDL multibouncing balls demo to use drawline builtin by @emkey1 in #1120
Fix undefined builtins in SDL multi bouncing balls demo by @emkey1 in #1121
Add formatfloat builtin for numeric string formatting by @emkey1 in #1122
Improve SDL multibouncing balls quit handling and visibility by @emkey1 in #1123
Rewrite 3D balls demo to compute physics without user builtin by @emkey1 in #1124
Preserve legacy ID for write builtin by @emkey1 in #1125
Improve Rea 3D bouncing balls depth rendering by @emkey1 in #1126
Add advanced bouncing balls builtin and update SDL demo by @emkey1 in #1128
Fix BouncingBalls3D builtin var handling and add regression test by @emkey1 in #1129
Enhance CLike GL bindings and refresh Rea landscape demo by @emkey1 in #1130
Fix grid interpolation cast in 3D bouncing balls demo by @emkey1 in #1131
Add BouncingBalls3DAccelerate builtin and retune SDL demo by @emkey1 in #1132
Keep SDL GraphLoop responsive to window manager pings by @emkey1 in #1133
Handle X11 WM ping events to keep SDL demos responsive by @emkey1 in #1134
Fix X11 display pointer retrieval for SDL syswm events by @emkey1 in #1135
Ensure GraphLoop pumps SDL events even when behind schedule by @emkey1 in #1136
Add optimized BouncingBalls3D builtins by @emkey1 in #1137
Add arrow key rotation to 3D bouncing balls demo by @emkey1 in #1138
Fix floor visibility through glass back wall by @emkey1 in #1139
Add sparkling starfield to Rea 3D bouncing balls demo by @emkey1 in #1140
Refactor Rea SDL multi bouncing balls demo by @emkey1 in #1141
Fix SDL multibouncing balls Rea demo compile errors by @emkey1 in #1142
Fix Rea SDL demo field names conflicting with consts by @emkey1 in #1143
Fix SDL multi bouncing balls demo argument list by @emkey1 in #1144
Fix SDL 3D multibouncing balls shading by @emkey1 in #1146
Fix clamp helper name collision in SDL multibouncing balls example by @emkey1 in #1147
Fix SDL multibouncing balls visibility by @emkey1 in #1149
Add regression test for Rea BouncingBalls3D data flow by @emkey1 in #1150
Handle ES index limits in balls3d sphere cache by @emkey1 in #1151
Implement Balls3D cleanup to fix SDL build linking by @emkey1 in #1153
Ensure global constructors see initialized vtables by @emkey1 in #1154
Refine Rea install script and import path parsing by @emkey1 in #1156
Merge latest devel into main by @emkey1 in #1155
Refactor extended builtin registry and add 3D category by @emkey1 in #1157
Move SDL Support To Extended Builtin by @emkey1 in #1158
Add standard utility modules for Rea by @emkey1 in #1159
Add opt-in Rea library test suite by @emkey1 in #1160
Fix install script case statement termination by @emkey1 in #1161
Improve Rea test runner executable resolution by @emkey1 in #1162
Fix install layout for library assets by @emkey1 in #1163
Fix Rea module registry to keep module bindings stable by @emkey1 in #1164
Fix DateTime module helper exports by @emkey1 in #1165
Fix DateTime module self-references by @emkey1 in #1166
Fix DateTime module exports to include parameter metadata by @emkey1 in #1167
Use safe integer division in DateTime helpers by @emkey1 in #1168
Fix module routine registration for Rea modules by @emkey1 in #1169
Fix REA module resolution and JSON int handling by @emkey1 in #1170
Restore CRT text color after tests by @emkey1 in #1171
Restore CRT library test terminal state by @emkey1 in #1172
Add ternary support to Rea, Pascal and CLike front ends by @emkey1 in #1173
Fix CRT TextAttr default and REA test mod issue by @emkey1 in #1174
Support hierarchical extended builtin groups by @emkey1 in #1175
Normalize console color at start of library tests by @emkey1 in #1176
Add CLike equivalents for Rea standard library modules by @emkey1 in #1177
Propagate extended builtin detection to library harnesses by @emkey1 in #1178
Add HTTP-backed SQLite demo by @emkey1 in #1179
Fix SQLite HTTP import demo price handling by @emkey1 in #1180
Add Rea demo showing SQLite analysis of Spotify songs dataset by @emkey1 in #1181
Add bit shift support to Rea front-end by @emkey1 in #1182
Add open array parameter support to Rea parser by @emkey1 in #1185
Fix Rea string literal handling for sqlite demo by @emkey1 in #1186
Fix SQL insert termination in Spotify SQLite demo by @emkey1 in #1187
Fix SQLite Spotify demo CSV parsing for null track IDs by @emkey1 in #1188
Fix SQLite Spotify demo nil handling by @emkey1 in #1189
Handle missing required fields in Spotify SQLite demo by @emkey1 in #1190
Fix Spotify demo CSV import field parsing by @emkey1 in #1191
Handle duplicate tracks during Spotify import by @emkey1 in #1192
Handle duplicate-row resets in Spotify demo by @emkey1 in #1193
Restore printf formatting support in REA by @emkey1 in #1194
Avoid rebuilding existing Spotify demo database by @emkey1 in #1195
Fix block_game example for interpreter compatibility by @emkey1 in #1196
Fix string indexing for block_game tetromino shapes by @emkey1 in #1197
Fix integer color extraction in Rea Tetris example by @emkey1 in #1198
Initialize font system in Rea block_game example by @emkey1 in #1199
Fix block game rendering rectangles by @emkey1 in #1200
Fix block_game controls and piece rendering by @emkey1 in #1201
Fix class const scope resolution by @emkey1 in #1202
Add aggregate scope verification harness runner by @emkey1 in #1203
Fix falling piece alignment in Rea block_game by @emkey1 in #1204
Handle SDL keyboard focus in ReadKey by @emkey1 in #1205
Revert "Handle SDL keyboard focus in ReadKey" by @emkey1 in #1206
Fix SDL builtin merge artifact and ReadKey compilation error by @emkey1 in #1207
Cast Mandelbrot spans to integers in Rea demos by @emkey1 in #1208
Fix SDL multibouncing balls frame delay division by @emkey1 in #1209
Emit real division when DIV uses real operands by @emkey1 in #1210
Fix AST real operand handling for division by @emkey1 in #1211
Revert "Fix AST real operand handling for division" by @emkey1 in #1212
Fix Rea parser arithmetic type promotion by @emkey1 in #1213
Revert "Fix Rea parser arithmetic type promotion" by @emkey1 in #1215
Fix Rea parser arithmetic type promotion by @emkey1 in #1214
Ensure INT_DIV is only emitted for integer operands by @emkey1 in #1216
Revert "Ensure INT_DIV is only emitted for integer operands" by @emkey1 in #1217
Ensure INT_DIV bytecode is only emitted for integer operands by @emkey1 in #1218
Handle HTTP 5xx statuses without runtime crash by @emkey1 in #1220
Align WebSocketEcho host with handshake header by @emkey1 in #1221
Update WebSocketEcho example to use ws.postman-echo.com by @emkey1 in #1222
Handle socketconnect DNS lookups per socket family by @emkey1 in #1223
Improve WebSocket echo example connection handling by @emkey1 in #1224
Consolidate optional test suites under Tests by @emkey1 in #1225
Rename Tests/etc to Tests/libs and repair library suites by @emkey1 in #1226
Support unit-qualified Pascal globals by @emkey1 in #1227
Refactor library tests to be module-friendly by @emkey1 in #1228
Handle UTF-8 decode issues and update library tests by @emkey1 in #1229
Fix constant overflow in CLike codegen and filesystem helpers by @emkey1 in #1230
Zero pad date/time in DOS example by @emkey1 in #1231
Support width specifiers in Str builtin by @emkey1 in #1232
Fix SDL keypad keycode translation to avoid range warning by @emkey1 in #1233
Add CRT text attribute helpers for CLike modules by @emkey1 in #1234
Update agent notes with test harness details by @emkey1 in #1235
Initialize local records and enable mylib record test by @emkey1 in #1236
Handle cancellation for async file downloads by @emkey1 in #1238
Fix HTTP request error handling to avoid VM crash by @emkey1 in #1237
Improve plasma SDL RGB progressive rendering by @emkey1 in #1240
Ensure Pascal and CLike library tests use gray output by @emkey1 in #1243
Round weather JSON temperatures before formatting by @emkey1 in #1244
Allow byte arguments for integer parameters by @emkey1 in #1246
Allow GraphLoop to accept real arguments by @emkey1 in #1245
Restructure examples into base and SDL groups by @emkey1 in #1248
Fix block game active piece rendering by @emkey1 in #1249
Fix integer arguments for game over text position by @emkey1 in #1250
Restore // comments in Rea while supporting context-sensitive integer division by @emkey1 in #1251
Accelerate landscape precompute builtins by @emkey1 in #1254
Call vertex baking builtin from LandscapeDemo by @emkey1 in #1255
Fix landscape builtin min/max height var parameters by @emkey1 in #1256
Fix Rea landscape input regression and restore terrain rendering by @emkey1 in #1258
Fix landscape ArrayArg refactor by @emkey1 in #1259
Disable landscape draw builtins and validate extended data by @emkey1 in #1261
Disable rendering in landscape extended builtins and add data validation by @emkey1 in #1260
Ensure glcullface builtin is available across front ends by @emkey1 in #1263
Add runtime fallback for landscape fast draw builtins by @emkey1 in #1264
Implement SDL fast landscape rendering by @emkey1 in #1265
Enable fast draw by default and refresh landscape sky by @emkey1 in #1266
Enhance sun and cloud rendering in Rea landscape demo by @emkey1 in #1267
Allow match identifiers in Rea parser by @emkey1 in #1269
Optimize SDL Mandelbrot demo performance by @emkey1 in #1270
docs: document new rea CLI flags by @emkey1 in #1272
docs: document new rea CLI flags by @emkey1 in #1273
Clarify Rea bytecode inspection docs by @emkey1 in #1274
Devel by @emkey1 in #1271
Add scope verification tests for Rea classes by @emkey1 in #1275
Add OpenAI extended builtin interfaces by @emkey1 in #1276
Add Pascal demo for OpenAI responses API by @emkey1 in #1277
Add Rea OpenAI chat demo for local server by @emkey1 in #1278
Allow type keywords as identifier names in the Rea parser by @emkey1 in #1279
Refactor chat demo to support generic OpenAI-compatible servers by @emkey1 in #1281
Ensure openai chat defaults use dynamic strings by @emkey1 in #1282
Add LM Studio preset and guidance to chat demo by @emkey1 in #1283
Add LM Studio model availability check to chat demo by @emkey1 in #1284
Fix LM Studio CLI model argument handling by @emkey1 in #1285
Auto-detect LM Studio model slug for chat demo by @emkey1 in #1286
Add shell frontend infrastructure by @emkey1 in #1288
Fix LM Studio model identifier normalization by @emkey1 in #1289
Add detailed debug logging to LM Studio chat demo by @emkey1 in #1291
Fix substringRange helper placement in REA chat demo by @emkey1 in #1292
Add VM shell execution builtins and docs by @emkey1 in #1290
Refine chat payload builder by @emkey1 in #1293
Add shell front end build configuration, docs, and regression harness by @emkey1 in #1294
Add README describing psh example scripts by @emkey1 in #1295
Rename shell examples directory to psh and add new sample scripts by @emkey1 in #1297
Make psh interactive by default by @emkey1 in #1296
Scope shell builtins to psh extended module by @emkey1 in #1298
Implement environment expansion and history recall in psh by @emkey1 in #1299
Add POSIX history and environment helpers to psh by @emkey1 in #1300
Enable inline history expansion in psh interactive shell by @emkey1 in #1301
Add regex history expansion to psh interactive shell by @emkey1 in #1302
Enable glob expansion for interactive psh commands by @emkey1 in #1303
Add interactive history navigation to psh by @emkey1 in #1304
Improve psh interactive completion and glob warnings by @emkey1 in #1305
Fix shell conditional branching by @emkey1 in #1306
Avoid false shell warnings and gate VM crash dumps by @emkey1 in #1307
Add shell case statement support by @emkey1 in #1308
Add shell function definitions and runtime support by @emkey1 in #1309
Implement shell command substitution and add regression tests by @emkey1 in #1310
Add arithmetic expansion evaluation to shell by @emkey1 in #1311
Add job control builtins to shell runtime by @emkey1 in #1312
Add source builtin and dynamic prompt to psh by @emkey1 in #1313
Add psh builtin command and documentation by @emkey1 in #1314
Stop linking shell builtins into non-shell front ends by @emkey1 in #1315
Improve interactive shell editing and tilde expansion by @emkey1 in #1316
Fix psh source builtin and support PS1 escape sequences by @emkey1 in #1317
Handle shell assignment words in sourced scripts by @emkey1 in #1318
Fix shell prompt escape handling by @emkey1 in #1319
Fix multiline prompt redraw in interactive shell by @emkey1 in #1320
Rename shell frontend to exsh and ignore Ctrl+Z in interactive mode by @emkey1 in #1321
Fix exsh foreground job control and add interactive keybindings by @emkey1 in #1322
Fix Pascal overflow warning regression by @emkey1 in #1323
Handle separators before loop body in exsh parser by @emkey1 in #1324
Fix Pascal harness stderr truncation by @emkey1 in #1325
Ensure runtime errors emit location without verbose context by @emkey1 in #1326
Add readline-style editing shortcuts to exsh interactive mode by @emkey1 in #1327
Declare interactiveUpdateScratch prototype by @emkey1 in #1328
Fix shell parser handling of function definitions by @emkey1 in #1329
Show ambiguous tab completion options in exsh by @emkey1 in #1330
Add help flag to front ends by @emkey1 in #1331
Implement shell control builtins and errexit handling by @emkey1 in #1332
Fix job control handling for exsh by @emkey1 in #1336
Fix exsh job control by spawning children with fork by @emkey1 in #1337
Add colon builtin to exsh shell runtime by @emkey1 in #1338
Fix shell loop code generation to repeat iterations by @emkey1 in #1339
Fix interactive signal handling for exsh by @emkey1 in #1340
Enhance shell lexer tokens and add regression checks by @emkey1 in #1341
Add brace group metadata and pipeline helpers by @emkey1 in #1342
Fix function name retention and pipeline negation by @emkey1 in #1343
Restore ShellParser state fields for heredoc handling by @emkey1 in #1345
Add shell grammar regression coverage by @emkey1 in #1346
Add eval builtin to shell frontend by @emkey1 in #1347
Add dot alias for source builtin in exsh by @emkey1 in #1348
Fix shell lexer parsing for special parameter tokens by @emkey1 in #1349
Handle array assignments in shell lexer by @emkey1 in #1350
Handle shell substring parameter expansion by @emkey1 in #1351
Handle shell array subscripts in parameter expansion by @emkey1 in #1354
Fix default parameter expansion in exsh by @emkey1 in #1355
Require NAME tokens after shell for loops by @emkey1 in #1356
Enforce shell function keyword syntax by @emkey1 in #1357
Implement shell control flow execution by @emkey1 in #1358
Initialize merge_pattern before early exits by @emkey1 in #1359
Run ~/.exshrc only for interactive exsh sessions by @emkey1 in #1360
Add read builtin to exsh runtime by @emkey1 in #1361
Fix shell source builtin and here-doc expansion by @emkey1 in #1362
Rename exsh example and test directories by @emkey1 in #1363
Add return/shift shell builtins and improve export semantics by @emkey1 in #1364
Fix exsh if/elif parsing bug by @emkey1 in #1365
Fix exsh comment skipping to retain newlines by @emkey1 in #1366
Fix exsh handling of double-bracket tests by @emkey1 in #1367
Handle bang tokens as words in exsh command bodies by @emkey1 in #1368
Improve exsh tab completion and add finger builtin by @emkey1 in #1370
Add RANDOM parameter support to exsh by @emkey1 in #1375
Fix exsh finger builtin and improve interactive UI by @emkey1 in #1374
Add help builtin to exsh interactive mode by @emkey1 in #1376
Optimize CI workflow to build affected frontends only by @emkey1 in #1377
Align regression harness summaries with shell format by @emkey1 in #1382
Fix SDL cleanup link error when 3D builtins are disabled by @emkey1 in #1383
Enhance exsh help overview by @emkey1 in #1384
Fix broken exsh overview link in docs index by @emkey1 in #1385
Allow literal structural tokens in exsh commands by @emkey1 in #1386
Fix case pattern token scheduling in exsh parser by @emkey1 in #1387
Fix CI target detection for impacted binaries by @emkey1 in #1388
Fix exsh ':' builtin lookup by @emkey1 in #1389
Ensure non-interactive shell exits on signals by @emkey1 in #1390
Fix CI build plan to include required runtime targets by @emkey1 in #1392
Handle SIGINT exits for foreground scripts by @emkey1 in #1391
Fix shell logical short-circuiting by @emkey1 in #1393
Fix conditional CI workflow build step by @emkey1 in #1394
Adjust exsh help listing behavior by @emkey1 in #1395
Remove help overview adjustments by @emkey1 in #1396
Restore CI workflow to always build all targets by @emkey1 in #1397
Fix export assignment parsing in exsh by @emkey1 in #1398
Fix alias assignments with quoted values in exsh by @emkey1 in #1399
Fix array assignment handling in exsh by @emkey1 in #1400
Add exsh Sierpinski triangle threaded demo by @emkey1 in #1402
Allow logical lists in shell conditionals by @emkey1 in #1403
Improve exsh demo terminal detection by @emkey1 in #1404
Add exec builtin to exsh runtime by @emkey1 in #1405
Fix exsh Sierpinski threads worker startup by @emkey1 in #1406
Fix exsh Sierpinski demo environment handling by @emkey1 in #1408
Fix shell builtin status leakage by @emkey1 in #1409
Add raw-mode handling to exsh read builtin by @emkey1 in #1410
Add declare builtin associative array support by @emkey1 in #1411
Fix array literal lexing across newlines by @emkey1 in #1412
Add here-string redirection support by @emkey1 in #1416
Fix stuff in exsh. by @emkey1 in #1417
Handle declare -g in exsh by @emkey1 in #1418
Implement builtin handler for double bracket comparisons by @emkey1 in #1419
Normalize bytecode spelling by @emkey1 in #1421
Allow configuring PSCAL install root by @emkey1 in #1422
Fix quoted positional parameter handling by @emkey1 in #1423
Fix exsh read -a option and add regression test by @emkey1 in #1424
Add plain text summary of exsh Bash builtin coverage by @emkey1 in #1425
Implement directory stack builtins for exsh by @emkey1 in #1426
Align unalias builtin with Bash behaviour by @emkey1 in #1427
Add let builtin regression test coverage by @emkey1 in #1428
Align exsh parity with host bash for declare and bind by @emkey1 in #1429
Default 3D extended builtins on when SDL is enabled by @emkey1 in #1430
Add release profile option enabling all builtins by @emkey1 in #1431
Add umask builtin and regression tests by @emkey1 in #1433
Add logout builtin for exsh by @emkey1 in #1434
Add disown builtin to exsh job control by @emkey1 in #1435
Add printf shell builtin with formatting support by @emkey1 in #1436
Implement times builtin for exsh shell by @emkey1 in #1437
Add getopts and mapfile builtins with parity tests by @emkey1 in #1438
Add hash builtin support and coverage for exsh by @emkey1 in #1439
Add -c inline execution mode to exsh by @emkey1 in #1440
Add POSIX mode toggle for shell set builtin by @emkey1 in #1441
Add integer coercion for typeset -i and parity test by @emkey1 in #1442
Fix condition evaluation handling for exsh by @emkey1 in #1443
Preserve shell symbol tables across nested evals by @emkey1 in #1444
Implement function-local scope tracking for typeset by @emkey1 in #1445
Allow case clauses to accept leading parens by @emkey1 in #1446
Add (( )) arithmetic command support to exsh by @emkey1 in #1447
Add runtime support for here-strings by @emkey1 in #1448
Allow function keyword without parentheses by @emkey1 in #1449
Implement POSIX test builtin for exsh by @emkey1 in #1450
Fix exsh builtins to match shellbench expectations by @emkey1 in #1451
Preserve declare values when no assignment is provided by @emkey1 in #1452
Recognize eval builtin invocation in exsh by @emkey1 in #1453
Fix duplicate registration of VM builtins by @emkey1 in #1454
Make builtin registration idempotent by @emkey1 in #1455
Reuse cached VM for shell function invocations by @emkey1 in #1456
Add echo/true/false shell builtins and tests by @emkey1 in #1457
Fix command substitution pipeline deadlock in exsh by @emkey1 in #1458
Fix exsh forward function resolution by @emkey1 in #1461
Add optional verbose compile banners to front ends by @emkey1 in #1462
Improve bytecode cache key robustness by @emkey1 in #1463
Fix Rea bytecode cache dependency resolution by @emkey1 in #1464
Fix Rea bytecode cache for extended integer constants by @emkey1 in #1465
Fix builtin redirection buffering for exsh builtins by @emkey1 in #1466
Disable exsh semantic warnings by default by @emkey1 in #1467
Allow configuring PSCAL install root by @emkey1 in #1468
Replace install.sh with enhanced CMake install rules by @emkey1 in #1469
Install examples and resolve assets from install prefix by @emkey1 in #1470
Configure example resource paths using install prefix by @emkey1 in #1471
Hard code example resource paths by @emkey1 in #1472
Fix configured example install destinations by @emkey1 in #1473
Implement kill builtin parity with bash by @emkey1 in #1474
Add Bash-compatible caller builtin and call stack tracking by @emkey1 in #1475
Add enable builtin support to exsh by @emkey1 in #1476
Support unquoted backtick command substitution by @emkey1 in #1477
Add Pascal support for compound assignments by @emkey1 in #1479
Add actionable plan for Pascal goto support by @emkey1 in #1480
Add Pascal goto/label support and tests by @emkey1 in #1481
Handle dynamic arrays in SetLength by @emkey1 in #1482
Handle Pascal Low/High pointers and add regression test by @emkey1 in #1483
Allow Pascal uses clauses to accept semicolon separators by @emkey1 in #1484
Enhance Blackjack example with CRT scoreboard by @emkey1 in #1485
Fix exsh parity regressions around exit and builtin redirections by @emkey1 in #1486
Fix Blackjack example play-again prompt placement by @emkey1 in #1487
Cache VM procedure lookups by bytecode address by @emkey1 in #1488
Fix IO-number parsing for redirection duplicates by @emkey1 in #1489
Fix redirection backup collisions in exsh by @emkey1 in #1490
Ensure shellbench EXIT traps run under errexit by @emkey1 in #1491
Fix errexit handling for logical contexts and clean up logging by @emkey1 in #1492
Keep shell errexit deferral active during condition checks by @emkey1 in #1493
Restore EXIT trap output when shellbench terminates scripts by @emkey1 in #1494
Add bash-compatible -c option handling for exsh by @emkey1 in #1495
Add owned string helper for VM string concatenation by @emkey1 in #1496
Use hash table for VM builtin lookup by @emkey1 in #1498
Use hash-backed lookup for compiler builtins by @emkey1 in #1499
Refactor extended builtin registry with hashed lookups by @emkey1 in #1500
Cache builtin lowercase metadata in bytecode by @emkey1 in #1501
Improve hangman dictionary lookup by @emkey1 in #1503
Guard pipeline teardown for loop constructs by @emkey1 in #1504
Fix pipeline subshell and command substitution scoping by @emkey1 in #1505
Fix exsh subshell scope handling by @emkey1 in #1506
Add automated tests for base example programs by @emkey1 in #1507
Short-circuit opcode profiling when disabled by @emkey1 in #1508
Reduce exsh exit polling overhead by @emkey1 in #1509
Reduce builtin flushing overhead by @emkey1 in #1510
Improve command execution and [[ expansion by @emkey1 in https://github.com//pull/1511
Bump tj-actions/changed-files from 41 to 46 in /.github/workflows in the github_actions group across 1 directory by @dependabot[bot] in #1512
Align exsh script extensions with new naming conventions by @emkey1 in #1513
Rename exsh status variable to EXSH_LAST_STATUS by @emkey1 in #1514
Ensure EXSH_LAST_STATUS remains exported by @emkey1 in #1515
Fix exsh command substitution stack overflow by @emkey1 in #1516
Fix exsh path resolution for Sierpinski threads demo by @emkey1 in #1517
Add VM thread-backed Sierpinski demo workers by @emkey1 in #1518
Hook WaitForThread into exsh front-end by @emkey1 in #1519
Handle cd -- sentinel in exsh builtins by @emkey1 in #1520
Fix exsh Sierpinski demo prompt wait by @emkey1 in #1521
Fix exsh Sierpinski demo rendering by @emkey1 in #1522
Add threaded builtin execution helpers by @emkey1 in #1524
Expose exsh thread spawn helpers and document builtin allowlist by @emkey1 in #1525
Fix macOS weak imports for shell runtime symbols by @emkey1 in #1526
Fix macOS link failures by adding shell runtime stubs by @emkey1 in #1527
Fix macOS link failure for pscaljson2bc by @emkey1 in #1528
Document VM worker pool usage and add reuse regression test by @emkey1 in #1529
Fix idle worker cancellation handling by @emkey1 in #1530
Add preliminary thread management builtins by @emkey1 in #1531
Document thread helpers in Clike and Rea usage text by @emkey1 in #1532
Document thread pool usage and add config samples by @emkey1 in #1533
Fix exsh threading demo option handling by @emkey1 in #1534
Add comprehensive exsh threading showcase example by @emkey1 in #1535
Consume thread status during WaitForThread joins by @emkey1 in #1537
Allow GetScreenSize before initializing SDL by @emkey1 in #1538
Fix threading_showcase worker metadata iteration by @emkey1 in #1539
Handle mktemp portability in exsh threading showcase by @emkey1 in #1540
Handle macOS mktemp quirks in threading_showcase example by @emkey1 in #1541
Fix exsh threading_showcase script parsing on macOS by @emkey1 in #1542
Fix subshell parsing and negation handling by @emkey1 in #1543
Improve threading_showcase tmpfile creation portability by @emkey1 in #1544
Add ThreadStatsJson builtin for exsh stats by @emkey1 in #1545
Fix threading_showcase result replay by @emkey1 in #1546
Fix parallel-check cleanup after WaitForThread by @emkey1 in #1547
Mark DNS lookup thread failures when resolution fails by @emkey1 in #1548
Add cache-friendly shellbench variant without -c by @emkey1 in #1549
Stabilize shellbench script filenames for caching by @emkey1 in #1551
Embed script hashes in shellbench identifiers by @emkey1 in #1552
Fix shellbench cache file naming collisions by @emkey1 in #1553
devel Merge to main branch by @emkey1 in #1557
Fix REA constructor aliases when loading bytecode by @emkey1 in #1558
Fix Rea constructor call resolution by @emkey1 in #1560
Fix hangman guessed letter sorting by @emkey1 in #1561
Improve interactivity of CLike Mandelbrot demo by @emkey1 in #1562
Fix CLike thread join releasing worker slots by @emkey1 in #1563
Fix SDL multibouncingballs quit handling by @emkey1 in #1564
Enhance SDL spacegame example by @emkey1 in #1565
Load font for spacegame HUD rendering by @emkey1 in #1566
Handle missing font path in spacegame by @emkey1 in #1567
Handle missing sound assets in clike spacegame example by @emkey1 in #1568
Fix CLike local string initialization by @emkey1 in #1569
Improve spacegame ship visuals by @emkey1 in #1570
Avoid full rebuild when example files change by @emkey1 in #1571
Fix Sierpinski shell demo thread spawn by @emkey1 in #1572
Fix Sierpinski thread demo synchronization by @emkey1 in #1573
Add sequential Sierpinski exsh demo by @emkey1 in #1574
Handle non-numeric recursion levels in exsh Sierpinski demo by @emkey1 in #1575
Fix HttpAsyncDemo file handling by @emkey1 in #1576
Fix Pascal string literal escape handling by @emkey1 in #1577
Implement StringReplace flags in SysUtils by @emkey1 in #1578
Fix Pascal set literal constant handling by @emkey1 in #1579
Fix set literal enum resolution by @emkey1 in #1580
Ensure enum literals from imported units are registered as constants by @emkey1 in #1581
Prevent duplicate playback status in psound demo by @emkey1 in #1582
Fix SDL Mandelbrot input handling on macOS by @emkey1 in #1583
Wrap Pascal spawn targets with call frame when needed by @emkey1 in #1584
Fix Mandelbrot extended example thread entry by @emkey1 in #1586
Make Mandelbrot demos adjust iteration caps during zoom by @emkey1 in #1587
Add Earth's moon to inner planets 3D demo by @emkey1 in #1588
Add Jupiter moon rendering to inner planets demo by @emkey1 in #1589
Add pause and speed controls to planets_inner_3d demo by @emkey1 in #1590
Fix keyboard controls in planets_inner_3d SDL demo by @emkey1 in #1591
Fix planets inner 3D key handling by @emkey1 in https://github.com/emkey1/pscal/pull/1592
Handle minus/equals names in SDL IsKeyDown by @emkey1 in https://github.com/emkey1/pscal/pull/1593
Improve SDL text input handling for pollkeyany by @emkey1 in https://github.com/emkey1/pscal/pull/1597
Add scripted flyby to inner planets SDL demo by @emkey1 in https://github.com/emkey1/pscal/pull/1598
Add atan2 math builtin by @emkey1 in https://github.com/emkey1/pscal/pull/1599
Register atan2 builtin for Rea front end by @emkey1 in https://github.com/emkey1/pscal/pull/1600
Enhance inner planets flyby tour by @emkey1 in https://github.com/emkey1/pscal/pull/1601
Tighten flyby camera proximity and adjust star distribution by @emkey1 in https://github.com/emkey1/pscal/pull/1602
Scale planet radii in inner solar SDL sample by @emkey1 in https://github.com/emkey1/pscal/pull/1603
Validate temporary directory in Rea SQLite Spotify demo by @emkey1 in https://github.com/emkey1/pscal/pull/1604
Avoid SDL scancode name lookup in inner planets sim by @emkey1 in https://github.com/emkey1/pscal/pull/1605
Handle missing example files in CMake by @emkey1 in https://github.com/emkey1/pscal/pull/1606
Retry transient DNS lookup failures by @emkey1 in https://github.com/emkey1/pscal/pull/1607
devel merge to main by @emkey1 in https://github.com/emkey1/pscal/pull/1608

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Pscal v3.0.0

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