F: Rework user filter for LibraryPage

F: Add AST visualization for expression
M: Inverse treeView
2024-09-27 12:03:13 +03:00 · 2024-09-26 23:26:20 +03:00 · 2024-09-26 22:40:00 +03:00 · 2024-09-26 11:48:22 +03:00 · 2024-09-25 23:07:55 +03:00
27 changed files with 609 additions and 81 deletions
--- a/TODO.txt
+++ b/TODO.txt
@ -63,12 +63,12 @@ https://yandex.cloud/ru/docs/smartcaptcha
 [Research]
 Research and consider integration
 - django-allauth - consider supporting popular auth providers
- drf-messages

 - skeleton loading
 https://react.dev/reference/react/Suspense

 - backend error message unification
+- drf-messages
 https://drf-standardized-errors.readthedocs.io/en/latest/error_response.html

 - semantic json diff
--- a/rsconcept/backend/requirements-dev-lock.txt
+++ b/rsconcept/backend/requirements-dev-lock.txt
@ -8,7 +8,7 @@ drf-spectacular-sidecar==2024.7.1
 coreapi==2.3.3
 django-rest-passwordreset==1.4.1
 cctext==0.1.4
-pyconcept==0.1.8
+pyconcept==0.1.10

 psycopg2-binary==2.9.9
 gunicorn==23.0.0
--- a/rsconcept/backend/requirements.txt
+++ b/rsconcept/backend/requirements.txt
@ -8,7 +8,7 @@ drf-spectacular-sidecar==2024.7.1
 coreapi==2.3.3
 django-rest-passwordreset==1.4.1
 cctext==0.1.4
-pyconcept==0.1.8
+pyconcept==0.1.10

 psycopg2-binary==2.9.9
 gunicorn==23.0.0
--- a/rsconcept/frontend/package.json
+++ b/rsconcept/frontend/package.json
@ -4,7 +4,7 @@
  "version": "1.0.0",
  "type": "module",
  "scripts": {
-    "generate": "lezer-generator src/components/RSInput/rslang/rslangFull.grammar -o src/components/RSInput/rslang/parser.ts && lezer-generator src/components/RefsInput/parse/refsText.grammar -o src/components/RefsInput/parse/parser.ts",
+    "generate": "lezer-generator src/components/RSInput/rslang/rslangFast.grammar -o src/components/RSInput/rslang/parser.ts && lezer-generator src/components/RSInput/rslang/rslangAST.grammar -o src/components/RSInput/rslang/parserAST.ts && lezer-generator src/components/RefsInput/parse/refsText.grammar -o src/components/RefsInput/parse/parser.ts",
    "test": "jest",
    "dev": "vite --host",
    "build": "tsc && vite build",
--- a/rsconcept/frontend/src/app/Router.tsx
+++ b/rsconcept/frontend/src/app/Router.tsx
@ -28,6 +28,10 @@ export const Router = createBrowserRouter([
        path: '',
        element: <HomePage />
      },
+      {
+        path: `${routes.not_found}`,
+        element: <NotFoundPage />
+      },
      {
        path: routes.login,
        element: <LoginPage />
--- a/rsconcept/frontend/src/app/urls.ts
+++ b/rsconcept/frontend/src/app/urls.ts
@ -8,6 +8,7 @@ import { buildConstants } from '@/utils/buildConstants';
 * Routes.
 */
 export const routes = {
+  not_found: 'not-found',
  login: 'login',
  signup: 'signup',
  profile: 'profile',
@ -39,6 +40,7 @@ interface OssProps {
 * Internal navigation URLs.
 */
 export const urls = {
+  page404: '/not-found',
  admin: `${buildConstants.backend}/admin`,
  rest_api: `${buildConstants.backend}/`,
  home: '/',
--- a/rsconcept/frontend/src/components/DomainIcons.tsx
+++ b/rsconcept/frontend/src/components/DomainIcons.tsx
@ -75,7 +75,7 @@ export function SubfoldersIcon({ value, size = '1.25rem', className }: DomIconPr
  if (value) {
    return <IconSubfolders size={size} className={className ?? 'clr-text-green'} />;
  } else {
-    return <IconSubfolders size={size} className={className ?? 'clr-text-controls'} />;
+    return <IconSubfolders size={size} className={className ?? 'clr-text-primary'} />;
  }
 }

--- a/rsconcept/frontend/src/components/Icons.tsx
+++ b/rsconcept/frontend/src/components/Icons.tsx
@ -34,6 +34,7 @@ export { LuMoon           as IconDarkTheme }      from 'react-icons/lu';
 export { LuSun            as IconLightTheme }     from 'react-icons/lu';
 export { LuFolderTree     as IconFolderTree }     from 'react-icons/lu';
 export { LuFolder         as IconFolder }         from 'react-icons/lu';
+export { LuFolderSearch   as IconFolderSearch }   from 'react-icons/lu';
 export { LuFolders        as IconSubfolders }     from 'react-icons/lu';
 export { LuFolderEdit     as IconFolderEdit }     from 'react-icons/lu';
 export { LuFolderOpen     as IconFolderOpened }   from 'react-icons/lu';
@ -57,6 +58,7 @@ export { PiFileCsv        as IconCSV }            from 'react-icons/pi';
 export { LuUserCircle2    as IconUser }           from 'react-icons/lu';
 export { FaCircleUser     as IconUser2 }          from 'react-icons/fa6';
 export { TbUserEdit       as IconEditor }         from 'react-icons/tb';
+export { TbUserSearch     as IconUserSearch }     from 'react-icons/tb';
 export { LuCrown          as IconOwner }          from 'react-icons/lu';
 export { TbMeteor         as IconAdmin }          from 'react-icons/tb';
 export { TbMeteorOff      as IconAdminOff }       from 'react-icons/tb';
--- a/rsconcept/frontend/src/components/RSInput/rslang/parserAST.terms.ts
+++ b/rsconcept/frontend/src/components/RSInput/rslang/parserAST.terms.ts
@ -0,0 +1,46 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+export const
+  Expression = 1,
+  Logic = 2,
+  Logic_predicates = 3,
+  Variable = 4,
+  Local = 5,
+  Tuple = 8,
+  Setexpr_enum_min2 = 9,
+  Setexpr_enum = 10,
+  Setexpr = 11,
+  Literal = 12,
+  Integer = 13,
+  EmptySet = 14,
+  IntegerSet = 15,
+  Global = 16,
+  Radical = 17,
+  Setexpr_binary = 18,
+  Setexpr_generators = 27,
+  Enumeration = 30,
+  Boolean = 31,
+  Filter_expression = 33,
+  Filter = 34,
+  Declarative = 37,
+  PrefixD = 40,
+  PrefixI = 41,
+  Imperative = 42,
+  Imp_blocks = 43,
+  PrefixR = 45,
+  Recursion = 46,
+  Function = 48,
+  TextFunction = 49,
+  BigPr = 50,
+  SmallPr = 51,
+  Card = 52,
+  Bool = 53,
+  Debool = 54,
+  Red = 55,
+  Logic_unary = 68,
+  Predicate = 71,
+  Logic_quantor = 72,
+  Variable_pack = 74,
+  Logic_binary = 76,
+  Function_decl = 81,
+  Arguments = 82,
+  Declaration = 83
--- a/rsconcept/frontend/src/components/RSInput/rslang/parserAST.ts
+++ b/rsconcept/frontend/src/components/RSInput/rslang/parserAST.ts
@ -0,0 +1,20 @@
+// This file was generated by lezer-generator. You probably shouldn't edit it.
+import {LRParser} from "@lezer/lr"
+export const parser = LRParser.deserialize({
+  version: 14,
+  states: "2xO!sQPOOOOQO'#Ch'#ChO#lQPO'#EWOOQO'#EW'#EWO%yQPO'#EVOVQPO'#CnO'_QPO'#CzO'fQPO'#C{O'nQPO'#C}O'sQPO'#DRO'xQPO'#DWO'}QPO'#D[OOQO'#Cw'#CwO(SQPO'#CwOOQO'#D_'#D_OOQO'#Cg'#CgO)pQPO'#CgO)uQPO'#CgO)zQPO'#C_OVQPO'#DsO*SQPO'#DvOOQO'#Dr'#DrO*[QPO'#DrO*aQPO'#EVOOQO'#C^'#C^O*rQPO'#EPQOQPOOO*wQPO,59YO*wQPO,59YO*wQPO,59YO*wQPO,59YO*wQPO,59YO*wQPO,59YO*wQPO,59YO*wQPO,59YO*wQPO,58yO+OQPO'#CfO+VQPO,59YO,jQPO,59OO,rQPO'#CeO,wQPO,58xO-YQPO,59mO-{QPO'#CfO*wQPO'#CnO.YQPO,59fOOQO'#Cf'#CfO*wQPO,59gOOQO,59g,59gO*wQPO,59iO*SQPO,59mO*wQPO,59rO*SQPO,59vO*wQPO,59RO*wQPO,59RO$lQPO'#C_OOQO,5:_,5:_O*wQPO'#CdOOQO'#C`'#C`OOQO'#Dx'#DxO.bQPO,5:bO*wQPO,5:^OVQPO,5:fOVQPO,5:fOVQPO,5:fOVQPO,5:fO.jQPO'#EROOQO'#EQ'#EQO.oQPO,5:kOOQO1G.t1G.tO2`QPO1G.tO2gQPO1G.tO6VQPO1G.tO9uQPO1G.tO9|QPO1G.tO:TQPO1G.tO:[QPO1G.tO=vQPO1G.eOOQO1G.j1G.jO*wQPO,59POOQO1G.d1G.dO*wQPO1G/XOOQO1G/Q1G/QO>gQPO1G/RO>nQPO1G/TO>vQPO1G/XO>{QPO1G/^O?SQPO1G/bO?XQPO1G.mO?aQPO1G.mO*SQPO,5:dO*wQPO1G/|O?hQPO1G/xOOQO1G0Q1G0QO@[QPO1G0QO@cQPO1G0QO@jQPO1G0QO*wQPO,5:mO*rQPO,5:lOVQPO1G0VOAXQPO1G.kOAiQPO7+$sOOQO7+$m7+$mOApQPO7+$oO*wQPO7+$sOVQPO7+$xO*wQPO7+$|OOQO7+$X7+$XOOQO1G0O1G0OOAuQPO7+%hOOQO7+%d7+%dOBcQPO1G0XOOQO1G0W1G0WOOQO7+%q7+%qOVQPO<<H_O*wQPO<<HZOBmQPO<<H_OBtQPO'#DXOCYQPO<<HdOCbQPO<<HhOCiQPO<<ISODWQPOAN=yODiQPOAN=uOVQPOAN=yOVQPO,59sOOQOAN>OAN>OOVQPOAN>SOOQOG23eG23eOOQOG23aG23aODpQPOG23eOERQPO1G/_OEgQPOG23nOEnQPOG23nOOQOLD)PLD)POOQOLD)YLD)YO*wQPOLD)YOFPQPO!$'LtOOQO!)9B`!)9B`",
+  stateData: "Fi~O!xOS~OTQOVTO]PO^PO_PO`ROaROmUOpVOrWOxXOyYO}ZO!Q`O!S^O!T^O!U^O!V^O!W^O!X^O!hcO!ifO!kdO!mdO~OsiO~PVOc!zXd!zXe!zXf!zXg!zXh!zXi!zXj!zX!Y!zXl!zX~Ov!zX!PSX!ZSX![!zX!]!zX!^!zX!_!zX!`!zX!a!zX!b!zX!c!zX!d!zX!e!zX!v!zX~P!zOckOdlOemOfnOgoOhpOiqOjrOvsO![sO!]sO!^sO!_sO!`sO!asO!bsO!csO!dsO!esO~O!v!yX~P$lOV{O]PO^PO_PO`ROaROmUOpVOrWOxXOyYO}ZO!Q`O!S^O!T^O!U^O!V^O!W^O!X^O~OTyO~P&QOV!OOpVO~Os!QO~Om!RO~Om!SO~Om!TO~OckXdkXekXfkXgkXhkXikXjkXvkX!PSX!ZSX![kX!]kX!^kX!_kX!`kX!akX!bkX!ckX!dkX!ekX!vkX!YkXlkX~Os!UO~OV!VO~O!PsO!ZsO~OT!ZOV!YO~Os!^O~O!o!_O!p!`O!q!aO!r!bO!v!yX~OT!cO~OTRO~P&QO!YYX~P$lOU!fOcZXdZXeZXfZXgZXhZXiZXjZXvZX!YZX![ZX!]ZX!^ZX!_ZX!`ZX!aZX!bZX!cZX!dZX!eZX~OU!oO!YYX~O!Y!pO~OU!qO!o!_O!p!`O!q!aO!r!bO~Ov!rO~P!zOckOdlOemOfnOgoOhpOiqOjrO~OlYX!YYXtYX~P-aOl!sO!Y!pO~Ov!|O!Y!{O~Ov#SO~Ot#UO!Y#TO~OckOebifbigbihbiibijbivbi![bi!]bi!^bi!_bi!`bi!abi!bbi!cbi!dbi!ebi!vbiUbi!Ybilbi!obi!pbi!qbi!rbitbiwbiTbiVbi]bi^bi_bi`biabimbipbirbixbiybi}bi!Qbi!Sbi!Tbi!Ubi!Vbi!Wbi!Xbi!hbi!ibi!kbi!mbi|bi~Odbi~P.wOdlO~P.wOckOdlOemOjrOgbihbiibivbi![bi!]bi!^bi!_bi!`bi!abi!bbi!cbi!dbi!ebi!vbiUbi!Ybilbi!obi!pbi!qbi!rbitbiwbiTbiVbi]bi^bi_bi`biabimbipbirbixbiybi}bi!Qbi!Sbi!Tbi!Ubi!Vbi!Wbi!Xbi!hbi!ibi!kbi!mbi|bi~Ofbi~P2nOckOdlOemOfnOiqOjrOhbivbi![bi!]bi!^bi!_bi!`bi!abi!bbi!cbi!dbi!ebi!vbiUbi!Ybilbi!obi!pbi!qbi!rbitbiwbiTbiVbi]bi^bi_bi`biabimbipbirbixbiybi}bi!Qbi!Sbi!Tbi!Ubi!Vbi!Wbi!Xbi!hbi!ibi!kbi!mbi|bi~Ogbi~P6^OgoO~P6^OfnO~P2nOckOdlOemOfbigbihbiibijbivbi![bi!]bi!^bi!_bi!`bi!abi!bbi!cbi!dbi!ebi!vbiUbi!Ybilbi!obi!pbi!qbi!rbitbiwbiTbiVbi]bi^bi_bi`biabimbipbirbixbiybi}bi!Qbi!Sbi!Tbi!Ubi!Vbi!Wbi!Xbi!hbi!ibi!kbi!mbi|bi~O!oRi!pRi!qRi!rRi!vRiURilRi|RiwRi~P-aOU#XO~P-aOt#YO!Y!pO~Ov#ZO~Ow#[O~P-aO!P#]O~Ot#^O!Y!pO~OU#^O~P-aOt#aO!Y!pO~O!o!_O!q!ni!r!ni!v!niU!nil!ni|!niw!ni~O!p!ni~P?pO!p!`O~P?pO!o!_O!p!`O!q!aO!r!ni!v!niU!nil!ni|!niw!ni~OUXi!YXilXitXi~P-aOw#eO~P-aOV#fO~OckOdlOemOfnOgoOhpOiqOjrO~PVOt!ui!Y!ui~P-aOw#nO~P-aO!o!_O!p!`O!q!aO!r!bOl{X|{X~Ol#pO|#oO~Ow#qO~P-aO!o!_O!p!`O!q!aO!r!bO!v!jyU!jyl!jy|!jyw!jy~Ol#rO!o!_O!p!`O!q!aO!r!bO~OU#sO~P-aOl#xO!o!_O!p!`O!q!aO!r!bO~O!o!_O!p!`O!q!aO!r!bOl{i|{i~Ol#yO~P$lOw#zO!o!_O!p!`O!q!aO!r!bO~Ol#|O~P-aOr!S!i!Q`a!U!V!W!X!TT}yxy~",
+  goto: "-}!{PP!|#v$WPPP$t%x&T&f(dPPPPP)`PPPPPPPP(dPP*^+YP*^PPP*^PPPP*^,XPP*^PP,[PPPPPPPPPPPPPPPPPP#v-WPP-WP-hP#vPPPP-k-n-qPPP-w(dSgO#UQxTQ!XcQ#O!_Q#P!`Q#Q!aQ#R!bQ#h#[Q#k#`Q#l#eQ#t#nQ#u#oR#w#qmhOTc!_!`!a!b#U#[#`#e#n#o#qlbOTc!_!`!a!b#U#[#`#e#n#o#qQ![dQ!v!RQ!x!TR#_!{!U[Uklmnopqrs{!O!Q!S!U!V!Y!^!p!r!|#S#Z#]#f#zl]OTc!_!`!a!b#U#[#`#e#n#o#qX!Zd!R!T!{UvT{!YX}U!Q!U!^UwT{!YQ|UQ!u!QQ!y!UR!}!^SSO#UQtT[zU{!Q!U!Y!^d!Wc!_!`!a!b#[#`#e#n#oQ!fkQ!glQ!hmQ!inQ!joQ!kpQ!lqQ!mrQ!nsQ!t!OQ!w!SQ!z!VQ#V!pQ#W!rQ#`!|Q#b#SQ#g#ZQ#j#]Q#m#fQ#v#qR#{#z!s_OTUcklmnopqrs{!O!Q!S!U!V!Y!^!_!`!a!b!p!r!|#S#U#Z#[#]#`#e#f#n#o#q#z!n_OUcklmnopqrs!O!Q!S!U!V!Y!^!_!`!a!b!p!r!|#S#U#Z#[#]#`#e#f#n#o#q#zTuT{!s[OTUcklmnopqrs{!O!Q!S!U!V!Y!^!_!`!a!b!p!r!|#S#U#Z#[#]#`#e#f#n#o#q#z!r[OTUcklmnopqrs{!O!Q!S!U!V!Y!^!_!`!a!b!p!r!|#S#U#Z#[#]#`#e#f#n#o#q#zR!PVR#i#[!saOTUcklmnopqrs{!O!Q!S!U!V!Y!^!_!`!a!b!p!r!|#S#U#Z#[#]#`#e#f#n#o#q#zmeOTc!_!`!a!b#U#[#`#e#n#o#qR!]dRjOR!eiQ!diR#c#TQjOR#d#U",
+  nodeNames: "⚠ Expression Logic Logic_predicates Variable Local ) ( Tuple Setexpr_enum_min2 Setexpr_enum Setexpr Literal Integer EmptySet IntegerSet Global Radical Setexpr_binary + - * ∪ \\ ∆ ∩ × Setexpr_generators } { Enumeration Boolean ℬ Filter_expression Filter [ ] Declarative ∈ | PrefixD PrefixI Imperative Imp_blocks ; PrefixR Recursion := Function TextFunction BigPr SmallPr Card Bool Debool Red , :∈ ∉ ⊆ ⊄ ⊂ > ≥ < ≤ ≠ = Logic_unary Negation ¬ Predicate Logic_quantor ∀ Variable_pack ∃ Logic_binary ⇔ ⇒ ∨ & Function_decl Arguments Declaration",
+  maxTerm: 88,
+  nodeProps: [
+    ["openedBy", 6,"(",28,"{"],
+    ["closedBy", 7,")",29,"}"]
+  ],
+  skippedNodes: [0],
+  repeatNodeCount: 0,
+  tokenData: "6g~R!iX^%ppq%pvw&exy&jyz&oz{&t{|&y|}'O}!O'T!Q!['Y![!]'b!]!^'u!^!_'z!_!`(P!`!a(U!c!d(Z!e!f(Z!f!g(i!h!i(q!k!l)e!r!s)j!t!u*^!u!v(Z!v!w(Z!z!{(Z!|!}*n!}#O*s#O#P*x#P#Q*}#R#S+S#T#U+S#U#V+j#V#W-Y#W#X.u#X#d+S#d#e1_#e#f+S#f#g2t#g#o+S#o#p4O#p#q4T#q#r4Y#y#z%p$f$g%p$r$s4_%o%p4d5i6S+S#BY#BZ%p$IS$I_%p$I|$JO%p$JT$JU%p$KV$KW%p% l% m4i%%Y%%Z4n%%[%%]4s%&Y%&Z4x%&]%&^4}%&_%&`5S%&`%&a5X%&b%&c5^%&c%&d5c%'S%'T5h%'T%'U5m%'U%'V5r%(^%(_5w%(b%(c5|%(c%(d6R%)Q%)R6W%)S%)T6]%)U%)V6b&FU&FV%p~%uY!x~X^%ppq%p#y#z%p$f$g%p#BY#BZ%p$IS$I_%p$I|$JO%p$JT$JU%p$KV$KW%p&FU&FV%p~&jO!r~~&oOV~~&tOU~~&yOe~~'OOc~~'TO!Y~~'YOd~~'_P]~!Q!['Y~'eQ!_!`'k%&b%&c'p~'pO!P~~'uO!Z~~'zO|~~(PO!b~~(UO!e~~(ZO!`~~(^P!Q![(a~(fP`~!Q![(a~(nPx~!Q![(a~(tQ!Q![(z#]#^)S~)PP!Q~!Q![(z~)VP!R![)Y~)_Qr~|})S!Q![)Y~)jOy~~)mQ!Q![)s#f#g){~)xP!i~!Q![)s~*OP!R![*R~*WQ!S~|}){!Q![*R~*cP}~!Q![*f~*kPa~!Q![*f~*sO_~~*xOs~~*}Og~~+SOt~~+XRT~!Q![+b#T#o+S5i6S+S~+gPT~!Q![+b~+oTT~!Q![+b#T#c+S#c#d,O#d#o+S5i6S+S~,TTT~!Q![+b#T#c+S#c#d,d#d#o+S5i6S+S~,iTT~!Q![+b#T#`+S#`#a,x#a#o+S5i6S+S~-PR!V~T~!Q![+b#T#o+S5i6S+S~-_ST~!Q![+b#T#U-k#U#o+S5i6S+S~-pTT~!Q![+b#T#f+S#f#g.P#g#o+S5i6S+S~.UTT~!Q![+b#T#W+S#W#X.e#X#o+S5i6S+S~.lR!U~T~!Q![+b#T#o+S5i6S+S~.zTT~!Q![+b#T#X+S#X#Y/Z#Y#o+S5i6S+S~/`TT~!Q![+b#T#U+S#U#V/o#V#o+S5i6S+S~/tTT~!Q![+b#T#c+S#c#d0T#d#o+S5i6S+S~0YTT~!Q![+b#T#c+S#c#d0i#d#o+S5i6S+S~0nTT~!Q![+b#T#`+S#`#a0}#a#o+S5i6S+S~1UR!W~T~!Q![+b#T#o+S5i6S+S~1dTT~!Q![+b#T#f+S#f#g1s#g#o+S5i6S+S~1xST~!Q!R+b!R![2U#T#o+S5i6S+S~2]Q!T~T~|}2c!Q![2U~2fP!R![2i~2nQ!T~|}2c!Q![2i~2yTT~!Q![+b#T#X+S#X#Y3Y#Y#o+S5i6S+S~3_TT~!Q![+b#T#W+S#W#X3n#X#o+S5i6S+S~3uR!X~T~!Q![+b#T#o+S5i6S+S~4TOm~~4YOw~~4_Ol~~4dO!h~~4iOj~~4nOp~~4sO!p~~4xO!o~~4}O!k~~5SO!m~~5XO^~~5^Oh~~5cOv~~5hO![~~5mO!q~~5rOi~~5wOf~~5|O!d~~6RO!c~~6WO!a~~6]O!_~~6bO!^~~6gO!]~",
+  tokenizers: [0],
+  topRules: {"Expression":[0,1]},
+  tokenPrec: 1710
+})
--- a/rsconcept/frontend/src/components/RSInput/rslang/rslangAST.grammar
+++ b/rsconcept/frontend/src/components/RSInput/rslang/rslangAST.grammar
@ -0,0 +1,247 @@
+///////////////////////////////////////////////////////////
+// ------------- Generator Definitions --------------------
+///////////////////////////////////////////////////////////
+@detectDelim
+
+///////////////////////////////////////////////////////////
+// ------------- Precedence Definitions --------------------
+///////////////////////////////////////////////////////////
+@precedence {
+  plus @left minus @left,
+  times @left,
+  not @right,
+  log_equiv @left,
+  log_impl @left,
+  log_or @left,
+  log_and @left,
+  set_decart @left set_union @left set_intersect @left set_minus @left set_symminus @left,
+  set_bool @right,
+  quant @right
+}
+
+///////////////////////////////////////////////////////////
+// ------------- Terminal Tokens --------------------------
+///////////////////////////////////////////////////////////
+@tokens {
+  space             { @whitespace+ }
+  Integer           { $[0-9]+ }
+  EmptySet          { "∅" }
+  IntegerSet        { "Z" }
+
+  BigPr             { "Pr"$[1-9]$[0-9]*(","$[1-9]$[0-9]*)* }
+  SmallPr           { "pr"$[1-9]$[0-9]*(","$[1-9]$[0-9]*)* }
+  Filter            { "Fi"$[1-9]$[0-9]*(","$[1-9]$[0-9]*)* }
+  Card              { "card" }
+  Bool              { "bool" }
+  Debool            { "debool" }
+  Red               { "red" }
+
+  Global            { $[XCSDAT]$[0-9]+ }
+  Function          { "F"$[0-9]+ }
+  Predicate         { "P"$[0-9]+ }
+  Radical           { "R"$[0-9]+ }
+  Local             { $[_a-zα-ω]($[a-zα-ω])*$[0-9]* }
+  PrefixR           { "R" }
+  PrefixI           { "I" }
+  PrefixD           { "D" }
+
+  "¬"
+  "∀" "∃" "⇔" "⇒" "∨" "&"
+  "ℬ"
+  "+" "-" "*" "∪" "\\" "∆" "∩" "×"
+  "∈" "∉" "⊆" "⊄" "⊂" ">" "≥" "≤" "<" "≠" "="
+  ":∈" ":="
+  
+  "," ";" "|"
+  "[" "]"
+  "{" "}"
+  "(" ")"
+  
+  @precedence {
+    Filter
+    BigPr
+    Predicate
+    Function
+    Global
+    Radical
+    PrefixR
+    PrefixI
+    PrefixD
+  }
+  @precedence {
+    Card
+    Bool
+    Debool
+    Red
+    SmallPr
+    Local
+  }
+}
+
+@skip { space }
+
+
+///////////////////////////////////////////////////////////////////////////////
+// ------------------------- Grammar Rules ------------------------------------
+///////////////////////////////////////////////////////////////////////////////
+
+// ------------------------- Language Expression ------------------------------
+@top Expression {
+  logic_or_setexpr |
+  Function_decl
+}
+logic_or_setexpr	{
+  Logic |
+  Setexpr
+}
+Function_decl {
+  "[" Arguments "]" logic_or_setexpr
+}
+
+
+// -------------------------  Variables and arguments -------------------------
+Arguments {
+  Declaration |
+  Arguments "," Declaration
+}
+Declaration {
+  Local "∈" Setexpr
+}
+Variable {
+  Local |
+  Tuple
+}
+Variable_pack {
+  Variable |
+  Variable_pack "," Variable
+}
+
+
+// ------------------------- Logic Expressions --------------------------------
+Logic {
+  Logic_predicates |
+  Logic_unary |
+  Logic_binary |
+  "(" Logic ")"
+}
+
+Logic_predicates {
+  Variable ":∈" Setexpr |
+  Variable ":=" Setexpr |
+  Setexpr "∈" Setexpr |
+  Setexpr "∉" Setexpr |
+  Setexpr "⊆" Setexpr |
+  Setexpr "⊄" Setexpr |
+  Setexpr "⊂" Setexpr |
+  Setexpr ">" Setexpr |
+  Setexpr "≥" Setexpr |
+  Setexpr "<" Setexpr |
+  Setexpr "≤" Setexpr |
+  Setexpr "≠" Setexpr |
+  Setexpr "=" Setexpr
+}
+
+Logic_unary {
+  Negation { !not "¬" Logic } |
+  Predicate "[" Setexpr_enum "]" |
+  Logic_quantor
+}
+
+Logic_quantor {
+  "∀" Variable_pack "∈" Setexpr !quant Logic |
+  "∃" Variable_pack "∈" Setexpr !quant Logic
+}
+
+Logic_binary {
+  Logic !log_equiv "⇔" Logic |
+  Logic !log_impl "⇒" Logic |
+  Logic !log_or "∨" Logic |
+  Logic !log_and "&" Logic
+}
+
+
+// ------------------------- Set Expressions ----------------------------------
+Setexpr {
+  Literal |
+  identifier |
+  Setexpr_binary |
+  Setexpr_generators |
+  Function "[" Setexpr_enum "]" |
+  TextFunction "(" Setexpr ")"
+}
+TextFunction {
+  BigPr |
+  SmallPr |
+  Card |
+  Bool |
+  Debool |
+  Red
+}
+Setexpr_enum {
+  Setexpr |
+  Setexpr_enum_min2
+}
+Setexpr_enum_min2 {
+  Setexpr_enum "," Setexpr
+}
+
+Literal {
+  Integer |
+  EmptySet |
+  IntegerSet
+}
+identifier {
+  Local |
+  Global |
+  Radical
+}
+
+Setexpr_binary {
+  Setexpr !plus "+" Setexpr |
+  Setexpr !minus "-" Setexpr |
+  Setexpr !times "*" Setexpr |
+  Setexpr !set_union "∪" Setexpr |
+  Setexpr !set_minus "\\" Setexpr |
+  Setexpr !set_symminus "∆" Setexpr |
+  Setexpr !set_intersect "∩" Setexpr |
+  Setexpr !set_decart "×" Setexpr |
+  "(" Setexpr_binary ")"
+}
+
+Setexpr_generators {
+  Enumeration |
+  Tuple |
+  Boolean |
+  Filter_expression |
+  Declarative |
+  Imperative |
+  Recursion
+}
+Enumeration {
+  "{" Setexpr_enum "}"
+}
+Tuple {
+  "(" Setexpr_enum_min2 ")"
+}
+Boolean {
+  !set_bool "ℬ" "(" Setexpr ")" |
+  !set_bool "ℬ" Boolean
+}
+Filter_expression {
+  Filter "[" Setexpr_enum "]" "(" Setexpr ")"
+}
+
+Declarative {
+  "{" Local "∈" Setexpr "|" Logic "}" |
+  PrefixD "{" Variable "∈" Setexpr "|" Logic "}"
+}
+Recursion {
+  PrefixR "{" Variable ":=" Setexpr ("|" Logic)? "|" Setexpr "}"
+}
+Imperative {
+  PrefixI "{" Setexpr "|" Imp_blocks "}"
+}
+Imp_blocks {
+  Logic |
+  Imp_blocks ";" Logic
+}
--- a/rsconcept/frontend/src/components/RSInput/rslang/rslangFast.grammar
+++ b/rsconcept/frontend/src/components/RSInput/rslang/rslangFast.grammar
--- a/rsconcept/frontend/src/dialogs/DlgShowAST.tsx
+++ b/rsconcept/frontend/src/dialogs/DlgShowAST.tsx
@ -27,7 +27,7 @@ function DlgShowAST({ hideWindow, syntaxTree, expression }: DlgShowASTProps) {
  const nodes: GraphNode[] = useMemo(
    () =>
      syntaxTree.map(node => ({
-        id: String(node.uid),
+        id: String(syntaxTree.length - node.uid), // invert order of IDs to force correct ordering in graph layout
        label: labelSyntaxTree(node),
        fill: colorBgSyntaxTree(node, colors)
      })),
@ -40,15 +40,15 @@ function DlgShowAST({ hideWindow, syntaxTree, expression }: DlgShowASTProps) {
      if (node.parent !== node.uid) {
        result.push({
          id: String(node.uid),
-          source: String(node.parent),
-          target: String(node.uid)
+          source: String(syntaxTree.length - node.parent),
+          target: String(syntaxTree.length - node.uid)
        });
      }
    });
    return result;
  }, [syntaxTree]);

-  const handleHoverIn = useCallback((node: GraphNode) => setHoverID(Number(node.id)), []);
+  const handleHoverIn = useCallback((node: GraphNode) => setHoverID(syntaxTree.length - Number(node.id)), [syntaxTree]);

  const handleHoverOut = useCallback(() => setHoverID(undefined), []);

--- a/rsconcept/frontend/src/models/miscellaneous.ts
+++ b/rsconcept/frontend/src/models/miscellaneous.ts
@ -6,6 +6,7 @@ import { Node } from 'reactflow';

 import { LibraryItemType, LocationHead } from './library';
 import { IOperation } from './oss';
+import { UserID } from './user';

 /**
 * Represents graph dependency mode.
@ -182,6 +183,7 @@ export interface ILibraryFilter {
  isVisible?: boolean;
  isOwned?: boolean;
  isEditor?: boolean;
+  filterUser?: UserID;
 }

 /**
--- a/rsconcept/frontend/src/models/rslang.ts
+++ b/rsconcept/frontend/src/models/rslang.ts
@ -232,6 +232,7 @@ export enum RSErrorType {
  invalidBinding = 34836,
  localOutOfScope = 34837,
  invalidElementPredicate = 34838,
+  invalidEmptySetUsage = 34839,
  invalidArgsArity = 34840,
  invalidArgumentType = 34841,
  globalStructure = 34844,
--- a/rsconcept/frontend/src/pages/LibraryPage/LibraryPage.tsx
+++ b/rsconcept/frontend/src/pages/LibraryPage/LibraryPage.tsx
@ -16,6 +16,7 @@ import DlgChangeLocation from '@/dialogs/DlgChangeLocation';
 import useLocalStorage from '@/hooks/useLocalStorage';
 import { ILibraryItem, IRenameLocationData, LocationHead } from '@/models/library';
 import { ILibraryFilter } from '@/models/miscellaneous';
+import { UserID } from '@/models/user';
 import { storage } from '@/utils/constants';
 import { information } from '@/utils/labels';
 import { convertToCSV, toggleTristateFlag } from '@/utils/utils';
@ -36,8 +37,9 @@ function LibraryPage() {
  const [head, setHead] = useLocalStorage<LocationHead | undefined>(storage.librarySearchHead, undefined);
  const [subfolders, setSubfolders] = useLocalStorage<boolean>(storage.librarySearchSubfolders, false);
  const [isVisible, setIsVisible] = useLocalStorage<boolean | undefined>(storage.librarySearchVisible, true);
-  const [isOwned, setIsOwned] = useLocalStorage<boolean | undefined>(storage.librarySearchEditor, undefined);
+  const [isOwned, setIsOwned] = useLocalStorage<boolean | undefined>(storage.librarySearchOwned, undefined);
  const [isEditor, setIsEditor] = useLocalStorage<boolean | undefined>(storage.librarySearchEditor, undefined);
+  const [filterUser, setFilterUser] = useLocalStorage<UserID | undefined>(storage.librarySearchUser, undefined);
  const [showRenameLocation, setShowRenameLocation] = useState(false);

  const filter: ILibraryFilter = useMemo(
@ -50,9 +52,22 @@ function LibraryPage() {
      isVisible: user ? isVisible : true,
      folderMode: options.folderMode,
      subfolders: subfolders,
-      location: options.location
+      location: options.location,
+      filterUser: filterUser
    }),
-    [head, path, query, isEditor, isOwned, isVisible, user, options.folderMode, options.location, subfolders]
+    [
+      head,
+      path,
+      query,
+      isEditor,
+      isOwned,
+      isVisible,
+      user,
+      options.folderMode,
+      options.location,
+      subfolders,
+      filterUser
+    ]
  );

  const hasCustomFilter = useMemo(
@ -63,6 +78,7 @@ function LibraryPage() {
      filter.isEditor !== undefined ||
      filter.isOwned !== undefined ||
      filter.isVisible !== true ||
+      filter.filterUser !== undefined ||
      !!filter.location,
    [filter]
  );
@ -84,8 +100,9 @@ function LibraryPage() {
    setIsVisible(true);
    setIsOwned(undefined);
    setIsEditor(undefined);
+    setFilterUser(undefined);
    options.setLocation('');
-  }, [setHead, setIsVisible, setIsOwned, setIsEditor, options.setLocation]);
+  }, [setHead, setIsVisible, setIsOwned, setIsEditor, setFilterUser, options.setLocation]);

  const promptRenameLocation = useCallback(() => {
    setShowRenameLocation(true);
@ -186,6 +203,8 @@ function LibraryPage() {
        toggleVisible={toggleVisible}
        isEditor={isEditor}
        toggleEditor={toggleEditor}
+        filterUser={filterUser}
+        setFilterUser={setFilterUser}
        resetFilter={resetFilter}
        folderMode={options.folderMode}
        toggleFolderMode={toggleFolderMode}
--- a/rsconcept/frontend/src/pages/LibraryPage/ToolbarSearch.tsx
+++ b/rsconcept/frontend/src/pages/LibraryPage/ToolbarSearch.tsx
@ -1,19 +1,31 @@
 'use client';

 import clsx from 'clsx';
-import { useCallback } from 'react';
+import { motion } from 'framer-motion';
+import { useCallback, useMemo } from 'react';

 import { LocationIcon, VisibilityIcon } from '@/components/DomainIcons';
-import { IconEditor, IconFilterReset, IconFolder, IconFolderTree, IconOwner } from '@/components/Icons';
+import {
+  IconEditor,
+  IconFilterReset,
+  IconFolder,
+  IconFolderSearch,
+  IconFolderTree,
+  IconOwner,
+  IconUserSearch
+} from '@/components/Icons';
 import { CProps } from '@/components/props';
+import SelectUser from '@/components/select/SelectUser';
 import Dropdown from '@/components/ui/Dropdown';
 import DropdownButton from '@/components/ui/DropdownButton';
 import MiniButton from '@/components/ui/MiniButton';
 import SearchBar from '@/components/ui/SearchBar';
 import SelectorButton from '@/components/ui/SelectorButton';
-import { useAuth } from '@/context/AuthContext';
+import { useUsers } from '@/context/UsersContext';
 import useDropdown from '@/hooks/useDropdown';
 import { LocationHead } from '@/models/library';
+import { UserID } from '@/models/user';
+import { animateDropdownItem } from '@/styling/animations';
 import { prefixes } from '@/utils/constants';
 import { describeLocationHead, labelLocationHead } from '@/utils/labels';
 import { tripleToggleColor } from '@/utils/utils';
@ -39,6 +51,9 @@ interface ToolbarSearchProps {
  toggleOwned: () => void;
  isEditor: boolean | undefined;
  toggleEditor: () => void;
+  filterUser: UserID | undefined;
+  setFilterUser: React.Dispatch<React.SetStateAction<UserID | undefined>>;
+
  resetFilter: () => void;
 }

@ -63,10 +78,19 @@ function ToolbarSearch({
  toggleOwned,
  isEditor,
  toggleEditor,
+  filterUser,
+  setFilterUser,
+
  resetFilter
 }: ToolbarSearchProps) {
-  const { user } = useAuth();
  const headMenu = useDropdown();
+  const userMenu = useDropdown();
+  const { users } = useUsers();
+
+  const userActive = useMemo(
+    () => isOwned !== undefined || isEditor !== undefined || filterUser !== undefined,
+    [isOwned, isEditor, filterUser]
+  );

  const handleChange = useCallback(
    (newValue: LocationHead | undefined) => {
@ -106,7 +130,7 @@ function ToolbarSearch({
      <div
        className={clsx(
          'ml-3 pt-1 self-center',
-          'min-w-[4.5rem] sm:min-w-[5.5rem]',
+          'min-w-[4.5rem] sm:min-w-[7.4rem]',
          'select-none',
          'whitespace-nowrap'
        )}
@ -114,41 +138,58 @@ function ToolbarSearch({
        {filtered} из {total}
      </div>

-      {user ? (
-        <div className='cc-icons'>
-          <MiniButton
-            title='Видимость'
-            icon={<VisibilityIcon value={true} className={tripleToggleColor(isVisible)} />}
-            onClick={toggleVisible}
-          />
+      <div className='cc-icons'>
+        <MiniButton
+          title='Видимость'
+          icon={<VisibilityIcon value={true} className={tripleToggleColor(isVisible)} />}
+          onClick={toggleVisible}
+        />

+        <div ref={userMenu.ref} className='flex'>
          <MiniButton
-            title='Я - Владелец'
-            icon={<IconOwner size='1.25rem' className={tripleToggleColor(isOwned)} />}
-            onClick={toggleOwned}
-          />
-
-          <MiniButton
-            title='Я - Редактор'
-            icon={<IconEditor size='1.25rem' className={tripleToggleColor(isEditor)} />}
-            onClick={toggleEditor}
-          />
-
-          <MiniButton
-            title='Сбросить фильтры'
-            icon={<IconFilterReset size='1.25rem' className='icon-primary' />}
-            onClick={resetFilter}
-            disabled={!hasCustomFilter}
+            title='Поиск пользователя'
+            hideTitle={userMenu.isOpen}
+            icon={<IconUserSearch size='1.25rem' className={userActive ? 'icon-green' : 'icon-primary'} />}
+            onClick={userMenu.toggle}
          />
+          <Dropdown isOpen={userMenu.isOpen}>
+            <DropdownButton
+              text='Я - Владелец'
+              icon={<IconOwner size='1.25rem' className={tripleToggleColor(isOwned)} />}
+              onClick={toggleOwned}
+            />
+            <DropdownButton
+              text='Я - Редактор'
+              icon={<IconEditor size='1.25rem' className={tripleToggleColor(isEditor)} />}
+              onClick={toggleEditor}
+            />
+            <motion.div className='px-1 pb-1' variants={animateDropdownItem}>
+              <SelectUser
+                noBorder
+                placeholder='Выберите автора'
+                className='min-w-[15rem] text-sm'
+                items={users}
+                value={filterUser}
+                onSelectValue={setFilterUser}
+              />
+            </motion.div>
+          </Dropdown>
        </div>
-      ) : null}

-      <div className='flex h-full'>
+        <MiniButton
+          title='Сбросить фильтры'
+          icon={<IconFilterReset size='1.25rem' className='icon-primary' />}
+          onClick={resetFilter}
+          disabled={!hasCustomFilter}
+        />
+      </div>
+
+      <div className='flex h-full flex-grow pr-4'>
        <SearchBar
          id='library_search'
          placeholder='Поиск'
          noBorder
-          className='min-w-[7rem] sm:min-w-[10rem]'
+          className={clsx('min-w-[7rem] sm:min-w-[10rem] max-w-[20rem]', folderMode && 'flex-grow')}
          value={query}
          onChange={setQuery}
        />
@ -163,7 +204,7 @@ function ToolbarSearch({
                head ? (
                  <LocationIcon value={head} size='1.25rem' />
                ) : (
-                  <IconFolder size='1.25rem' className='clr-text-controls' />
+                  <IconFolderSearch size='1.25rem' className='clr-text-controls' />
                )
              }
              onClick={handleFolderClick}
@ -171,7 +212,7 @@ function ToolbarSearch({
            />

            <Dropdown isOpen={headMenu.isOpen} stretchLeft className='z-modalTooltip'>
-              <DropdownButton className='w-[10rem]' title='Переключение в режим Проводник' onClick={handleToggleFolder}>
+              <DropdownButton title='Переключение в режим Проводник' onClick={handleToggleFolder}>
                <div className='inline-flex items-center gap-3'>
                  <IconFolderTree size='1rem' className='clr-text-controls' />
                  <span>проводник...</span>
@ -207,7 +248,7 @@ function ToolbarSearch({
            placeholder='Путь'
            noIcon
            noBorder
-            className='min-w-[4.5rem] sm:min-w-[5rem]'
+            className='w-[4.5rem] sm:w-[5rem] flex-grow'
            value={path}
            onChange={setPath}
          />
--- a/rsconcept/frontend/src/pages/LibraryPage/ViewSideLocation.tsx
+++ b/rsconcept/frontend/src/pages/LibraryPage/ViewSideLocation.tsx
@ -89,13 +89,18 @@ function ViewSideLocation({
          place='right-start'
        />
        <div className='cc-icons'>
+          {canRename ? (
+            <MiniButton
+              icon={<IconFolderEdit size='1.25rem' className='icon-primary' />}
+              titleHtml='<b>Редактирование пути</b><br/>Перемещаются только Ваши схемы<br/>в указанной папке (и подпапках)'
+              onClick={onRenameLocation}
+            />
+          ) : null}
          <MiniButton
-            icon={<IconFolderEdit size='1.25rem' className='icon-primary' />}
-            titleHtml='<b>Редактирование пути</b><br/>Перемещаются только Ваши схемы<br/>в указанной папке (и подпапках)'
-            onClick={onRenameLocation}
-            disabled={!canRename}
+            title='Вложенные папки' // prettier: split-lines
+            icon={<SubfoldersIcon value={subfolders} />}
+            onClick={toggleSubfolders}
          />
-          <MiniButton title='Вложенные папки' icon={<SubfoldersIcon value={subfolders} />} onClick={toggleSubfolders} />
          <MiniButton
            icon={<IconFolderTree size='1.25rem' className='icon-green' />}
            title='Переключение в режим Поиск'
--- a/rsconcept/frontend/src/pages/ManualsPage/ManualsPage.tsx
+++ b/rsconcept/frontend/src/pages/ManualsPage/ManualsPage.tsx
@ -7,6 +7,7 @@ import { useConceptOptions } from '@/context/ConceptOptionsContext';
 import { useConceptNavigation } from '@/context/NavigationContext';
 import useQueryStrings from '@/hooks/useQueryStrings';
 import { HelpTopic } from '@/models/miscellaneous';
+import { PARAMETER } from '@/utils/constants';

 import TopicsList from './TopicsList';
 import ViewTopic from './ViewTopic';
@ -18,6 +19,14 @@ function ManualsPage() {

  const { mainHeight } = useConceptOptions();

+  if (!Object.values(HelpTopic).includes(activeTopic)) {
+    setTimeout(() => {
+      router.push(urls.page404);
+    }, PARAMETER.refreshTimeout);
+    console.log(1);
+    return null;
+  }
+
  const onSelectTopic = useCallback(
    (newTopic: HelpTopic) => {
      router.push(urls.help_topic(newTopic));
--- a/rsconcept/frontend/src/pages/ManualsPage/items/ui/HelpLibrary.tsx
+++ b/rsconcept/frontend/src/pages/ManualsPage/items/ui/HelpLibrary.tsx
@ -5,6 +5,7 @@ import {
  IconFolderEdit,
  IconFolderEmpty,
  IconFolderOpened,
+  IconFolderSearch,
  IconFolderTree,
  IconOSS,
  IconRSForm,
@ -12,7 +13,8 @@ import {
  IconShow,
  IconSortAsc,
  IconSortDesc,
-  IconSubfolders
+  IconSubfolders,
+  IconUserSearch
 } from '@/components/Icons';
 import LinkTopic from '@/components/ui/LinkTopic';
 import { useConceptOptions } from '@/context/ConceptOptionsContext';
@ -43,11 +45,14 @@ function HelpLibrary() {
        <IconSortAsc size='1rem' className='inline-icon' />
        <IconSortDesc size='1rem' className='inline-icon' /> сортировка по клику на заголовок таблицы
      </li>
+      <li>
+        <IconUserSearch size='1rem' className='inline-icon' /> фильтр по пользователю
+      </li>
      <li>
        <IconSearch size='1rem' className='inline-icon' /> фильтр по названию и шифру
      </li>
      <li>
-        <IconFolder size='1rem' className='inline-icon' /> фильтр по расположению
+        <IconFolderSearch size='1rem' className='inline-icon' /> фильтр по расположению
      </li>
      <li>
        <IconFilterReset size='1rem' className='inline-icon' /> сбросить фильтры
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/EditorRSExpression.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/EditorRSExpression.tsx
@ -6,7 +6,9 @@ import { useCallback, useLayoutEffect, useMemo, useRef, useState } from 'react';
 import { toast } from 'react-toastify';

 import BadgeHelp from '@/components/info/BadgeHelp';
+import { CProps } from '@/components/props';
 import RSInput from '@/components/RSInput';
+import { parser as rslangParser } from '@/components/RSInput/rslang/parserAST';
 import { RSTextWrapper } from '@/components/RSInput/textEditing';
 import Overlay from '@/components/ui/Overlay';
 import { useRSForm } from '@/context/RSFormContext';
@ -18,6 +20,7 @@ import { ConstituentaID, IConstituenta } from '@/models/rsform';
 import { getDefinitionPrefix } from '@/models/rsformAPI';
 import { IExpressionParse, IRSErrorDescription, SyntaxTree } from '@/models/rslang';
 import { TokenID } from '@/models/rslang';
+import { transformAST } from '@/utils/codemirror';
 import { storage } from '@/utils/constants';
 import { errors, labelTypification } from '@/utils/labels';

@ -124,17 +127,25 @@ function EditorRSExpression({
    setIsModified(true);
  }, []);

-  function handleShowAST() {
-    handleCheckExpression(parse => {
-      if (!parse.astText) {
-        toast.error(errors.astFailed);
-      } else {
-        setSyntaxTree(parse.ast);
-        // TODO: return prefix from parser API instead of prefixLength
-        setExpression(getDefinitionPrefix(activeCst) + value);
-        setShowAST(true);
-      }
-    });
+  function handleShowAST(event: CProps.EventMouse) {
+    if (event.ctrlKey) {
+      const tree = rslangParser.parse(value);
+      const ast = transformAST(tree);
+      setSyntaxTree(ast);
+      setExpression(value);
+      setShowAST(true);
+    } else {
+      handleCheckExpression(parse => {
+        if (!parse.astText) {
+          toast.error(errors.astFailed);
+        } else {
+          setSyntaxTree(parse.ast);
+          // TODO: return prefix from parser API instead of prefixLength
+          setExpression(getDefinitionPrefix(activeCst) + value);
+          setShowAST(true);
+        }
+      });
+    }
  }

  const controls = useMemo(
--- a/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/ToolbarRSExpression.tsx
+++ b/rsconcept/frontend/src/pages/RSFormPage/EditorRSExpression/ToolbarRSExpression.tsx
@ -1,4 +1,5 @@
 import { IconControls, IconTree } from '@/components/Icons';
+import { CProps } from '@/components/props';
 import MiniButton from '@/components/ui/MiniButton';
 import Overlay from '@/components/ui/Overlay';
 import { useRSForm } from '@/context/RSFormContext';
@ -8,7 +9,7 @@ interface ToolbarRSExpressionProps {
  showControls: boolean;

  toggleControls: () => void;
-  showAST: () => void;
+  showAST: (event: CProps.EventMouse) => void;
 }

 function ToolbarRSExpression({ disabled, showControls, toggleControls, showAST }: ToolbarRSExpressionProps) {
--- a/rsconcept/frontend/src/styling/color.ts
+++ b/rsconcept/frontend/src/styling/color.ts
@ -6,6 +6,7 @@ import { GramData, Grammeme, NounGrams, PartOfSpeech, VerbGrams } from '@/models
 import { GraphColoring } from '@/models/miscellaneous';
 import { CstClass, ExpressionStatus, IConstituenta } from '@/models/rsform';
 import { ISyntaxTreeNode, TokenID } from '@/models/rslang';
+import { PARAMETER } from '@/utils/constants';

 /**
 * Represents application color theme configuration.
@ -375,8 +376,65 @@ export function colorBgSyntaxTree(node: ISyntaxTreeNode, colors: IColorTheme): s
    case TokenID.ITERATE:
      return colors.bgRed;
  }
+
+  switch (node.data.value) {
+    case 'Expression':
+    case 'Local':
+      return colors.bgGreen;
+
+    case 'Global':
+    case 'Radical':
+    case 'Function':
+    case 'Predicate':
+    case 'Literal':
+    case 'Integer':
+    case 'EmptySet':
+    case 'IntegerSet':
+      return colors.bgTeal;
+
+    case 'Logic':
+    case 'Logic_predicates':
+    case 'Variable':
+    case 'Tuple':
+    case 'Setexpr_enum_min2':
+    case 'Setexpr_enum':
+    case 'Setexpr':
+    case 'Setexpr_binary':
+    case 'Setexpr_generators':
+    case 'Enumeration':
+    case 'Boolean':
+    case 'Filter_expression':
+    case 'Filter':
+    case 'Declarative':
+    case 'Imperative':
+    case 'Imp_blocks':
+    case 'Recursion':
+    case 'TextFunction':
+    case 'Logic_unary':
+    case 'Logic_quantor':
+    case 'Variable_pack':
+    case 'Logic_binary':
+    case 'Function_decl':
+    case 'Arguments':
+    case 'Declaration':
+      return colors.bgBlue;
+
+    case 'BigPr':
+    case 'SmallPr':
+    case 'Card':
+    case 'Bool':
+    case 'Debool':
+    case 'Red':
+    case 'PrefixD':
+    case 'PrefixI':
+    case 'PrefixR':
+      return colors.bgPurple;
+
+    case PARAMETER.errorNodeLabel:
+      return colors.bgRed;
+  }
  // node
-  return colors.bgRed;
+  return colors.bgPurple;
 }

 /**
--- a/rsconcept/frontend/src/utils/codemirror.ts
+++ b/rsconcept/frontend/src/utils/codemirror.ts
@ -13,8 +13,10 @@ import { IEntityReference, ISyntacticReference } from '@/models/language';
 import { parseEntityReference, parseGrammemes, parseSyntacticReference } from '@/models/languageAPI';
 import { IConstituenta } from '@/models/rsform';
 import { isBasicConcept } from '@/models/rsformAPI';
+import { SyntaxTree } from '@/models/rslang';

 import { colorFgGrammeme, IColorTheme } from '../styling/color';
+import { PARAMETER } from './constants';
 import { describeConstituentaTerm, labelCstTypification, labelGrammeme } from './labels';

 /**
@ -91,6 +93,56 @@ export function printTree(tree: Tree): string {
  return state.output;
 }

+/**
+ * Transform Tree to {@link SyntaxTree}.
+ */
+export function transformAST(tree: Tree): SyntaxTree {
+  const result: SyntaxTree = [];
+  const parents: number[] = [];
+  const cursor = tree.cursor();
+  let finished = false;
+  let leave = true;
+  while (!finished) {
+    let node = cursorNode(cursor);
+    node.isLeaf = !cursor.firstChild();
+
+    leave = true;
+    result.push({
+      uid: result.length,
+      parent: parents.length > 0 ? parents[parents.length - 1] : result.length,
+      typeID: node.type.id,
+      start: node.from,
+      finish: node.to,
+      data: {
+        dataType: 'string',
+        value: node.type.name == '⚠' ? PARAMETER.errorNodeLabel : node.type.name
+      }
+    });
+    parents.push(result.length - 1);
+
+    if (!node.isLeaf) continue;
+
+    for (;;) {
+      node = cursorNode(cursor, node.isLeaf);
+      if (leave) {
+        parents.pop();
+      }
+
+      leave = cursor.type.isAnonymous;
+      node.isLeaf = false;
+      if (cursor.nextSibling()) {
+        break;
+      }
+      if (!cursor.parent()) {
+        finished = true;
+        break;
+      }
+      leave = true;
+    }
+  }
+  return result;
+}
+
 /**
 * Retrieves a list of all nodes, containing given range and corresponding to a filter.
 */
--- a/rsconcept/frontend/src/utils/constants.ts
+++ b/rsconcept/frontend/src/utils/constants.ts
@ -34,6 +34,7 @@ export const PARAMETER = {
  statSmallThreshold: 3, // characters - threshold for small labels - small font

  logicLabel: 'LOGIC',
+  errorNodeLabel: '[ERROR]',
  exteorVersion: '4.9.5',

  TOOLTIP_WIDTH: 'max-w-[29rem]'
@ -116,6 +117,7 @@ export const storage = {
  librarySearchVisible: 'library.search.visible',
  librarySearchOwned: 'library.search.owned',
  librarySearchEditor: 'library.search.editor',
+  librarySearchUser: 'library.search.user',
  libraryPagination: 'library.pagination',

  rsgraphFilter: 'rsgraph.filter2',
--- a/rsconcept/frontend/src/utils/labels.ts
+++ b/rsconcept/frontend/src/utils/labels.ts
@ -362,11 +362,11 @@ export function describeExpressionStatus(status: ExpressionStatus): string {
 export function labelHelpTopic(topic: HelpTopic): string {
  // prettier-ignore
  switch (topic) {
-    case HelpTopic.MAIN:            return 'Портал';
+    case HelpTopic.MAIN:            return '🏠 Портал';

-    case HelpTopic.THESAURUS:       return 'Тезаурус';
+    case HelpTopic.THESAURUS:       return '📖 Тезаурус';

-    case HelpTopic.INTERFACE:       return 'Интерфейс';
+    case HelpTopic.INTERFACE:       return '🦄 Интерфейс';
    case HelpTopic.UI_LIBRARY:      return 'Библиотека';
    case HelpTopic.UI_RS_MENU:      return 'Меню схемы';
    case HelpTopic.UI_RS_CARD:      return 'Карточка схемы';
@ -378,7 +378,7 @@ export function labelHelpTopic(topic: HelpTopic): string {
    case HelpTopic.UI_CST_CLASS:    return 'Класс конституенты';
    case HelpTopic.UI_OSS_GRAPH:    return 'Граф синтеза';

-    case HelpTopic.CONCEPTUAL:      return 'Концептуализация';
+    case HelpTopic.CONCEPTUAL:      return '♨️ Концептуализация';
    case HelpTopic.CC_SYSTEM:       return 'Система определений';
    case HelpTopic.CC_CONSTITUENTA: return 'Конституента';
    case HelpTopic.CC_RELATIONS:    return 'Связи понятий';
@ -386,24 +386,24 @@ export function labelHelpTopic(topic: HelpTopic): string {
    case HelpTopic.CC_OSS:          return 'Операционная схема';
    case HelpTopic.CC_PROPAGATION:  return 'Сквозные изменения';

-    case HelpTopic.RSLANG:          return 'Экспликация';
+    case HelpTopic.RSLANG:          return '🚀 Экспликация';
    case HelpTopic.RSL_TYPES:       return 'Типизация';
    case HelpTopic.RSL_CORRECT:     return 'Переносимость';
    case HelpTopic.RSL_INTERPRET:   return 'Интерпретируемость';
    case HelpTopic.RSL_OPERATIONS:  return 'Операции';
    case HelpTopic.RSL_TEMPLATES:   return 'Банк выражений';

-    case HelpTopic.TERM_CONTROL:    return 'Терминологизация';
-    case HelpTopic.ACCESS:          return 'Доступы';
-    case HelpTopic.VERSIONS:        return 'Версионирование';
+    case HelpTopic.TERM_CONTROL:    return '🪸 Терминологизация';
+    case HelpTopic.ACCESS:          return '👀 Доступы';
+    case HelpTopic.VERSIONS:        return '🏺 Версионирование';

-    case HelpTopic.INFO:            return 'Информация';
+    case HelpTopic.INFO:            return '📰 Информация';
    case HelpTopic.INFO_RULES:      return 'Правила';
    case HelpTopic.INFO_CONTRIB:    return 'Разработчики';
    case HelpTopic.INFO_PRIVACY:    return 'Обработка данных';
    case HelpTopic.INFO_API:        return 'REST API';

-    case HelpTopic.EXTEOR:          return 'Экстеор';
+    case HelpTopic.EXTEOR:          return '🖥️ Экстеор';
  }
 }

@ -622,6 +622,9 @@ export function labelSyntaxTree(node: ISyntaxTreeNode): string {
      return labelToken(node.typeID);
  }
  // node
+  if (node.data.value) {
+    return node.data.value as string;
+  }
  return 'UNKNOWN ' + String(node.typeID);
 }

@ -760,6 +763,8 @@ export function describeRSError(error: IRSErrorDescription): string {
      return `Использование имени переменной вне области действия: ${error.params[0]}`;
    case RSErrorType.invalidElementPredicate:
      return `Несоответствие типизаций операндов для оператора: ${error.params[0]}${error.params[1]}${error.params[2]}`;
+    case RSErrorType.invalidEmptySetUsage:
+      return 'Бессмысленное использование пустого множества';
    case RSErrorType.invalidArgsArity:
      return `Неверное число аргументов терм-функции: ${error.params[0]} != ${error.params[1]}`;
    case RSErrorType.invalidArgumentType:
--- a/scripts/dev/PopulateDevData.ps1
+++ b/scripts/dev/PopulateDevData.ps1
@ -3,10 +3,6 @@
 $container= Read-Host -Prompt "Enter backend container name: "

 function PopulateDevData() {
-    ImportInitialData
-}
-
-function ImportInitialData() {
    docker exec `
        -it $container `
        python3.12 manage.py loaddata ./fixtures/InitialData.json
Author	SHA1	Message	Date
Ivan	4c20d151d7	F: Rework user filter for LibraryPage Some checks failed Frontend CI / build (22.x) (push) Waiting to run Details Backend CI / build (3.12) (push) Has been cancelled Details	2024-09-27 12:03:13 +03:00
Ivan	4383511a4a	F: Add AST visualization for expression	2024-09-26 23:26:20 +03:00
Ivan	f3c11747d8	M: Inverse treeView	2024-09-26 22:40:00 +03:00
Ivan	aeaa92df3f	B: Correctly process invalid manuals topic name	2024-09-26 11:48:22 +03:00
Ivan	e1604bb7f8	F: Implement rules from pyconcept0.1.10	2024-09-25 23:07:55 +03:00