now it is do

src/compiler/tests/compiler.test.ts

@@ -63,26 +63,26 @@ describe('compiler', () => {
   })
 
   test('function', () => {
-    expect(`fn a b: a + b end`).toEvaluateTo(Function)
+    expect(`do a b: a + b end`).toEvaluateTo(Function)
   })
 
   test('function call', () => {
-    expect(`add = fn a b: a + b end; add 2 9`).toEvaluateTo(11)
+    expect(`add = do a b: a + b end; add 2 9`).toEvaluateTo(11)
   })
 
   test('function call with named args', () => {
-    expect(`minus = fn a b: a - b end; minus b=2 a=9`).toEvaluateTo(7)
+    expect(`minus = do a b: a - b end; minus b=2 a=9`).toEvaluateTo(7)
   })
 
   test('function call with named and positional args', () => {
-    expect(`minus = fn a b: a - b end; minus b=2 9`).toEvaluateTo(7)
+    expect(`minus = do a b: a - b end; minus b=2 9`).toEvaluateTo(7)
-    expect(`minus = fn a b: a - b end; minus 90 b=20`).toEvaluateTo(70)
+    expect(`minus = do a b: a - b end; minus 90 b=20`).toEvaluateTo(70)
-    expect(`minus = fn a b: a - b end; minus a=900 200`).toEvaluateTo(700)
+    expect(`minus = do a b: a - b end; minus a=900 200`).toEvaluateTo(700)
-    expect(`minus = fn a b: a - b end; minus 2000 a=9000`).toEvaluateTo(7000)
+    expect(`minus = do a b: a - b end; minus 2000 a=9000`).toEvaluateTo(7000)
   })
 
   test('function call with no args', () => {
-    expect(`bloop = fn: 'bloop' end; bloop`).toEvaluateTo('bloop')
+    expect(`bloop = do: 'bloop' end; bloop`).toEvaluateTo('bloop')
   })
 
   test('simple conditionals', () => {
@@ -150,7 +150,7 @@ describe('errors', () => {
 describe('multiline tests', () => {
   test('multiline function', () => {
     expect(`
-      add = fn a b:
+      add = do a b:
         result = a + b
         result
       end

src/compiler/tests/pipe.test.ts

@@ -3,7 +3,7 @@ import { describe, test, expect } from 'bun:test'
 describe('pipe expressions', () => {
   test('simple pipe passes result as first argument', () => {
     const code = `
-      double = fn x: x * 2 end
+      double = do x: x * 2 end
       double 2 | double`
 
     expect(code).toEvaluateTo(8)
@@ -11,9 +11,9 @@ describe('pipe expressions', () => {
 
   test('pipe chain with three stages', () => {
     const code = `
-      add-one = fn x: x + 1 end
+      add-one = do x: x + 1 end
-      double = fn x: x * 2 end
+      double = do x: x * 2 end
-      minus-point-one = fn x: x - 0.1 end
+      minus-point-one = do x: x - 0.1 end
       add-one 3 | double | minus-point-one`
     //       4        8       7.9
     expect(code).toEvaluateTo(7.9)
@@ -21,8 +21,8 @@ describe('pipe expressions', () => {
 
   test('pipe with function that has additional arguments', () => {
     const code = `
-      multiply = fn a b: a * b end
+      multiply = do a b: a * b end
-      get-five = fn: 5 end
+      get-five = do: 5 end
       get-five | multiply 3`
 
     expect(code).toEvaluateTo(15)
@@ -31,7 +31,7 @@ describe('pipe expressions', () => {
   test('pipe with bare identifier', () => {
     const code = `
       get-value = 42
-      process = fn x: x + 10 end
+      process = do x: x + 10 end
       get-value | process`
 
     expect(code).toEvaluateTo(52)
@@ -39,7 +39,7 @@ describe('pipe expressions', () => {
 
   test('pipe in assignment', () => {
     const code = `
-      add-ten = fn x: x + 10 end
+      add-ten = do x: x + 10 end
       result = add-ten 5 | add-ten
       result`
 
@@ -49,23 +49,23 @@ describe('pipe expressions', () => {
 
   test('pipe with named underscore arg', () => {
     expect(`
-      divide = fn a b: a / b end
+      divide = do a b: a / b end
-      get-ten = fn: 10 end
+      get-ten = do: 10 end
       get-ten | divide 2 b=_`).toEvaluateTo(0.2)
 
     expect(`
-      divide = fn a b: a / b end
+      divide = do a b: a / b end
-      get-ten = fn: 10 end
+      get-ten = do: 10 end
       get-ten | divide b=_ 2`).toEvaluateTo(0.2)
 
     expect(`
-      divide = fn a b: a / b end
+      divide = do a b: a / b end
-      get-ten = fn: 10 end
+      get-ten = do: 10 end
       get-ten | divide 2 a=_`).toEvaluateTo(5)
 
     expect(`
-      divide = fn a b: a / b end
+      divide = do a b: a / b end
-      get-ten = fn: 10 end
+      get-ten = do: 10 end
       get-ten | divide a=_ 2`).toEvaluateTo(5)
   })
 
@@ -74,8 +74,8 @@ describe('pipe expressions', () => {
     // handling logic works correctly when there are multiple pipe stages
     // in a single expression.
     expect(`
-      sub = fn a b: a - b end
+      sub = do a b: a - b end
-      div = fn a b: a / b end
+      div = do a b: a / b end
       sub 3 1 | div (sub 110 9 | sub 1) _ | div 5`).toEvaluateTo(10)
   })
 })

src/editor/commands.ts

@@ -245,7 +245,7 @@ const commandShapes: CommandShape[] = [
 ] as const
 
 let commandSource = () => commandShapes
-export const setCommandSource = (fn: () => CommandShape[]) => {
+export const setCommandSource = (do: () => CommandShape[]) => {
   commandSource = fn
 }
 

src/parser/shrimp.grammar

@@ -21,14 +21,9 @@
   leftParen { "(" }
   rightParen { ")" }
   colon[closedBy="end", @name="colon"] { ":" }
-  end[openedBy="colon",  @name="end"] { "end" }
   Underscore { "_" }
   Null { "null" }
   Regex { "//" (![/\\\n[] | "\\" ![\n] | "[" (![\n\\\]] | "\\" ![\n])* "]")+ ("//" $[gimsuy]*)? } // Stolen from the lezer JavaScript grammar
-  Fn[@name=keyword] { "fn" }
-  "if" [@name=keyword]
-  "elsif" [@name=keyword]
-  "else" [@name=keyword]  
   "|"[@name=operator]
 
 }
@@ -98,11 +93,11 @@ FunctionDef {
 }
 
 singleLineFunctionDef {
-  Fn Params colon consumeToTerminator end
+  @specialize[@name=keyword]<Identifier, "do"> Params colon consumeToTerminator @specialize[@name=keyword]<Identifier, "end">
 }
 
 multilineFunctionDef {
-  Fn Params colon newlineOrSemicolon block end
+  @specialize[@name=keyword]<Identifier, "do"> Params colon newlineOrSemicolon block @specialize[@name=keyword]<Identifier, "end">
 }
 
 IfExpr {
@@ -110,19 +105,19 @@ IfExpr {
 }
 
 singleLineIf {
-  "if" (ConditionalOp | expression) colon ThenBlock { consumeToTerminator }
+  @specialize[@name=keyword]<Identifier, "if"> (ConditionalOp | expression) colon ThenBlock { consumeToTerminator }
 }
 
 multilineIf {
-  "if" (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock ElsifExpr* ElseExpr? end
+  @specialize[@name=keyword]<Identifier, "if"> (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock ElsifExpr* ElseExpr? @specialize[@name=keyword]<Identifier, "end">
 }
 
 ElsifExpr {
-  "elsif" (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock
+  @specialize[@name=keyword]<Identifier, "elsif"> (ConditionalOp | expression) colon newlineOrSemicolon ThenBlock
 }
 
 ElseExpr {
-  "else" colon newlineOrSemicolon ThenBlock
+  @specialize[@name=keyword]<Identifier, "else"> colon newlineOrSemicolon ThenBlock
 }
 
 ThenBlock {
@@ -163,9 +158,14 @@ expression {
   expressionWithoutIdentifier | DotGet | Identifier
 }
 
+
+@local tokens {
+  dot { "." }
+}
+
 @skip {} {
   DotGet {
-    IdentifierBeforeDot "." Identifier
+    IdentifierBeforeDot dot Identifier
   }
 
   String { "'" stringContent* "'" }

src/parser/shrimp.terms.ts

@@ -34,10 +34,9 @@ export const
   Null = 32,
   DotGet = 33,
   FunctionDef = 34,
-  Fn = 35,
+  keyword = 50,
   Params = 36,
   colon = 37,
-  end = 38,
   Underscore = 39,
   NamedArg = 40,
   NamedArgPrefix = 41,

src/parser/shrimp.ts

@@ -1,26 +1,27 @@
 // This file was generated by lezer-generator. You probably shouldn't edit it.
-import {LRParser} from "@lezer/lr"
+import {LRParser, LocalTokenGroup} from "@lezer/lr"
 import {operatorTokenizer} from "./operatorTokenizer"
 import {tokenizer} from "./tokenizer"
 import {trackScope} from "./scopeTracker"
 import {highlighting} from "./highlight"
+const spec_Identifier = {__proto__:null,do:70, end:76, if:88, elsif:96, else:100}
 export const parser = LRParser.deserialize({
   version: 14,
-  states: ".jQVQrOOO#XQuO'#CrO$RQRO'#CsO$aQRO'#DmO$xQrO'#CqO%gOWO'#CuOOQq'#Dq'#DqO%uOQO'#C}O%zQRO'#DpO&cQrO'#D|OOQp'#DO'#DOOOQO'#Dn'#DnO&kQQO'#DmO&yQrO'#EQOOQO'#DX'#DXO'hQRO'#DaOOQO'#Dm'#DmO'mQQO'#DlOOQp'#Dl'#DlOOQp'#Db'#DbQVQrOOOOQq'#Dp'#DpOOQp'#Cp'#CpO'uQrO'#DUOOQp'#Do'#DoOOQp'#Dc'#DcO(PQtO,59ZO&yQrO,59_O&yQrO,59_O)XQRO'#CsO)iQRO,59]O)zQRO,59]O)uQQO,59]O*uQQO,59]O*}QrO'#CwO+VQ`O'#CxOOOO'#Du'#DuOOOO'#Dd'#DdO+kOWO,59aOOQq,59a,59aO+yOpO,59iOOQp'#De'#DeO,OQrO'#DQO,WQQO,5:hO,]QrO'#DgO,bQQO,59YO,sQRO,5:lO,zQQO,5:lO-PQrO,59{OOQp,5:W,5:WOOQp-E7`-E7`OOQp,59p,59pOOQp-E7a-E7aOOQP1G.y1G.yO-^QRO1G.yO&yQrO,59`O&yQrO,59`OOQq1G.w1G.wOOOO,59c,59cOOOO,59d,59dOOOO-E7b-E7bOOQq1G.{1G.{OOQq1G/T1G/TOOQp-E7c-E7cO-xQrO1G0SO!QQtO'#CrOOQO,5:R,5:ROOQO-E7e-E7eO.YQrO1G0WOOQO1G/g1G/gOOQO1G.z1G.zO.jQRO1G.zO.tQQO7+%nO.yQrO7+%oOOQO'#DZ'#DZOOQO7+%r7+%rO/ZQrO7+%sOOQp<<IY<<IYO/qQQO'#DfO/vQrO'#EPO0^QQO<<IZOOQO'#D['#D[O0cQQO<<I_OOQp,5:Q,5:QOOQp-E7d-E7dOOQpAN>uAN>uO&yQrO'#D]OOQO'#Dh'#DhO0nQQOAN>yO0yQQO'#D_OOQOAN>yAN>yO1OQQOAN>yO1TQRO,59wO1[QQO,59wOOQO-E7f-E7fOOQOG24eG24eO1aQQOG24eO1fQQO,59yO1kQQO1G/cOOQOLD*PLD*PO.yQrO1G/eO/ZQrO7+$}OOQO7+%P7+%POOQO<<Hi<<Hi",
+  states: ".jQVQbOOO#XQcO'#CrO$RQRO'#CsO$aQcO'#DmO$xQbO'#CqO%gOSO'#CuOOQa'#Dq'#DqO%uOpO'#C}O%zQcO'#DpO&cQbO'#D|OOQ`'#DO'#DOOOQ`'#Dn'#DnO&kQbO'#DmO&yQbO'#EQOOQ`'#DX'#DXO'hQRO'#DaOOQ`'#Dm'#DmO'mQQO'#DlOOQ`'#Dl'#DlOOQ`'#Db'#DbQVQbOOOOQa'#Dp'#DpOOQ`'#Cp'#CpO'uQbO'#DUOOQ`'#Do'#DoOOQ`'#Dc'#DcO(PQbO,59ZO&yQbO,59_O&yQbO,59_O)XQRO'#CsO)iQRO,59]O)zQRO,59]O)uQQO,59]O*uQQO,59]O*}QbO'#CwO+VQWO'#CxOOOO'#Du'#DuOOOO'#Dd'#DdO+kOSO,59aOOQa,59a,59aO+yO`O,59iOOQ`'#De'#DeO,OQbO'#DQO,WQQO,5:hO,]QbO'#DgO,bQbO,59YO,sQRO,5:lO,zQQO,5:lO-PQbO,59{OOQ`,5:W,5:WOOQ`-E7`-E7`OOQ`,59p,59pOOQ`-E7a-E7aOOQa1G.y1G.yO-^QcO1G.yO&yQbO,59`O&yQbO,59`OOQa1G.w1G.wOOOO,59c,59cOOOO,59d,59dOOOO-E7b-E7bOOQa1G.{1G.{OOQa1G/T1G/TOOQ`-E7c-E7cO-xQbO1G0SO!QQbO'#CrOOQ`,5:R,5:ROOQ`-E7e-E7eO.YQbO1G0WOOQ`1G/g1G/gOOQO1G.z1G.zO.jQRO1G.zO.tQbO7+%nO.yQbO7+%oOOQ`'#DZ'#DZOOQ`7+%r7+%rO/ZQbO7+%sOOQ`<<IY<<IYO/qQQO'#DfO/vQbO'#EPO0^QbO<<IZOOQ`'#D['#D[O0cQbO<<I_OOQ`,5:Q,5:QOOQ`-E7d-E7dOOQ`AN>uAN>uO&yQbO'#D]OOQ`'#Dh'#DhO0nQbOAN>yO0yQQO'#D_OOQ`AN>yAN>yO1OQbOAN>yO1TQRO,59wO1[QQO,59wOOQ`-E7f-E7fOOQ`G24eG24eO1aQbOG24eO1fQQO,59yO1kQQO1G/cOOQ`LD*PLD*PO.yQbO1G/eO/ZQbO7+$}OOQ`7+%P7+%POOQ`<<Hi<<Hi",
   stateData: "1s~O!_OS~O]PO^_O_UO`VOmUOnUOoUOpUOsXO|]O!fSO!hTO!rbO~O]eO_UO`VOmUOnUOoUOpUOsXOwfOygO!fSO!hTOzfX!rfX!vfX!gfXvfX~OP!dXQ!dXR!dXS!dXT!dXU!dXV!dXW!dXX!dXY!dXZ!dX[!dX~P!QOPkOQkORlOSlO~OPkOQkORlOSlO!r!aX!v!aXv!aX~O]PO_UO`VOmUOnUOoUOpUO!fSO!hTO~OjtO!hwO!jrO!ksO~O!oxO~OP!dXQ!dXR!dXS!dX!r!aX!v!aXv!aX~O^yOutP~Oz|O!r!aX!v!aXv!aX~O]eO_UO`VOmUOnUOoUOpUO!fSO!hTO~OV!QO~O!r!RO!v!RO~OsXOw!TO~P&yOsXOwfOygOzca!rca!vca!gcavca~P&yOT!YOU!YOV!XOW!XOX!XOY!XOZ!XO[!XO~OPkOQkORlOSlO~P(mOPkOQkORlOSlO!g!ZO~O!g!ZOP!dXQ!dXR!dXS!dXT!dXU!dXV!dXW!dXX!dXY!dXZ!dX[!dX~Oz|O!g!ZO~O]![O!fSO~O!h!]O!j!]O!k!]O!l!]O!m!]O!n!]O~OjtO!h!_O!jrO!ksO~O]!`O~O^yOutX~Ou!bO~O]!cO~Oz|O!rba!vba!gbavba~Ou!fO~P(mOu!fO~O^_OsXO|]O~P$xOPkOQkORgiSgi!rgi!vgi!ggivgi~O^_OsXO|]O!r!kO~P$xO^_OsXO|]O!r!nO~P$xO!ghiuhi~P(mOv!oO~O^_OsXO|]Ov!sP~P$xO^_OsXO|]Ov!sP!Q!sP!S!sP~P$xO!r!uO~O^_OsXO|]Ov!sX!Q!sX!S!sX~P$xOv!wO~Ov!|O!Q!xO!S!{O~Ov#RO!Q!xO!S!{O~Ou#TO~Ov#RO~Ou#UO~P(mOu#UO~Ov#VO~O!r#WO~O!r#XO~Omo~",
   goto: "+m!vPPPPPPPPPPPPPPPPPP!w#W#f#k#W$V$l$xP%a%aPPPP%e&OP&dPPP#fPP&gP&s&v'PP'TP&g'Z'a'h'n't'}(UPPP([(`(t)W)]*WPPP*sPPPPPP*w*wP+X+a+ad`Od!Q!b!f!k!n!q#W#XRpSiZOSd|!Q!b!f!k!n!q#W#XVhPj!czUOPS]dgjkl!Q!X!Y!b!c!f!k!n!q!x#W#XR![rdROd!Q!b!f!k!n!q#W#XQnSQ!VkR!WlQpSQ!P]Q!h!YR#P!x{UOPS]dgjkl!Q!X!Y!b!c!f!k!n!q!x#W#XTtTvdWOd!Q!b!f!k!n!q#W#XgePS]gjkl!X!Y!c!xd`Od!Q!b!f!k!n!q#W#XUfPj!cR!TgR{Xe`Od!Q!b!f!k!n!q#W#XR!m!fQ!t!nQ#Y#WR#Z#XT!y!t!zQ!}!tR#S!zQdOR!SdSjP!cR!UjQvTR!^vQzXR!azW!q!k!n#W#XR!v!qS}[qR!e}Q!z!tR#Q!zTcOdSaOdQ!g!QQ!j!bQ!l!fZ!p!k!n!q#W#Xd[Od!Q!b!f!k!n!q#W#XQqSR!d|ViPj!cdQOd!Q!b!f!k!n!q#W#XUfPj!cQmSQ!O]Q!TgQ!VkQ!WlQ!h!XQ!i!YR#O!xdWOd!Q!b!f!k!n!q#W#XdeP]gjkl!X!Y!c!xRoSTuTvmYOPdgj!Q!b!c!f!k!n!q#W#XQ!r!kV!s!n#W#Xe^Od!Q!b!f!k!n!q#W#X",
-  nodeNames: "⚠ Star Slash Plus Minus And Or Eq Neq Lt Lte Gt Gte Identifier AssignableIdentifier Word IdentifierBeforeDot Program PipeExpr FunctionCall PositionalArg ParenExpr FunctionCallOrIdentifier BinOp ConditionalOp String StringFragment Interpolation EscapeSeq Number Boolean Regex Null DotGet FunctionDef keyword Params colon end Underscore NamedArg NamedArgPrefix operator IfExpr keyword ThenBlock ThenBlock ElsifExpr keyword ElseExpr keyword Assign",
+  nodeNames: "⚠ Star Slash Plus Minus And Or Eq Neq Lt Lte Gt Gte Identifier AssignableIdentifier Word IdentifierBeforeDot Program PipeExpr FunctionCall PositionalArg ParenExpr FunctionCallOrIdentifier BinOp ConditionalOp String StringFragment Interpolation EscapeSeq Number Boolean Regex Null DotGet FunctionDef keyword Params colon keyword Underscore NamedArg NamedArgPrefix operator IfExpr keyword ThenBlock ThenBlock ElsifExpr keyword ElseExpr keyword Assign",
   maxTerm: 84,
   context: trackScope,
   nodeProps: [
-    ["closedBy", 37,"end"],
+    ["closedBy", 37,"end"]
-    ["openedBy", 38,"colon"]
   ],
   propSources: [highlighting],
   skippedNodes: [0],
   repeatNodeCount: 7,
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+  tokenData: "?p~RyOX#rXY$aYZ$zZp#rpq$aqt#rtu%euw#rwx%jxy%oyz&Yz{#r{|&s|}#r}!O&s!O!P#r!P!Q)g!Q!['b![!]2S!]!^$z!^#O#r#O#P2m#P#R#r#R#S2r#S#T#r#T#Y3]#Y#Z4k#Z#b3]#b#c8y#c#f3]#f#g<c#g#h3]#h#i=Y#i#o3]#o#p#r#p#q?Q#q;'S#r;'S;=`$Z<%l~#r~O#r~~?kS#wUjSOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#rS$^P;=`<%l#r^$hUjS!_YOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#rU%RUjS!rQOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#r~%jO!j~~%oO!h~U%vUjS!fQOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#rU&aUjS!gQOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#rU&xWjSOt#ruw#rx!Q#r!Q!['b![#O#r#P;'S#r;'S;=`$Z<%lO#rU'iYjSmQOt#ruw#rx!O#r!O!P(X!P!Q#r!Q!['b![#O#r#P;'S#r;'S;=`$Z<%lO#rU(^WjSOt#ruw#rx!Q#r!Q![(v![#O#r#P;'S#r;'S;=`$Z<%lO#rU(}WjSmQOt#ruw#rx!Q#r!Q![(v![#O#r#P;'S#r;'S;=`$Z<%lO#rU)lWjSOt#ruw#rx!P#r!P!Q*U!Q#O#r#P;'S#r;'S;=`$Z<%lO#rU*Z^jSOY+VYZ#rZt+Vtu,Yuw+Vwx,Yx!P+V!P!Q#r!Q!}+V!}#O0{#O#P.h#P;'S+V;'S;=`1|<%lO+VU+^^jSoQOY+VYZ#rZt+Vtu,Yuw+Vwx,Yx!P+V!P!Q.}!Q!}+V!}#O0{#O#P.h#P;'S+V;'S;=`1|<%lO+VQ,_XoQOY,YZ!P,Y!P!Q,z!Q!},Y!}#O-i#O#P.h#P;'S,Y;'S;=`.w<%lO,YQ,}P!P!Q-QQ-VUoQ#Z#[-Q#]#^-Q#a#b-Q#g#h-Q#i#j-Q#m#n-QQ-lVOY-iZ#O-i#O#P.R#P#Q,Y#Q;'S-i;'S;=`.b<%lO-iQ.USOY-iZ;'S-i;'S;=`.b<%lO-iQ.eP;=`<%l-iQ.kSOY,YZ;'S,Y;'S;=`.w<%lO,YQ.zP;=`<%l,YU/SWjSOt#ruw#rx!P#r!P!Q/l!Q#O#r#P;'S#r;'S;=`$Z<%lO#rU/sbjSoQOt#ruw#rx#O#r#P#Z#r#Z#[/l#[#]#r#]#^/l#^#a#r#a#b/l#b#g#r#g#h/l#h#i#r#i#j/l#j#m#r#m#n/l#n;'S#r;'S;=`$Z<%lO#rU1Q[jSOY0{YZ#rZt0{tu-iuw0{wx-ix#O0{#O#P.R#P#Q+V#Q;'S0{;'S;=`1v<%lO0{U1yP;=`<%l0{U2PP;=`<%l+VU2ZUjSuQOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#r~2rO!k~U2yUjSwQOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#rU3bYjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#o3]#o;'S#r;'S;=`$Z<%lO#rU4XUyQjSOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#rU4pZjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#U5c#U#o3]#o;'S#r;'S;=`$Z<%lO#rU5h[jSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#`3]#`#a6^#a#o3]#o;'S#r;'S;=`$Z<%lO#rU6c[jSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#g3]#g#h7X#h#o3]#o;'S#r;'S;=`$Z<%lO#rU7^[jSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#X3]#X#Y8S#Y#o3]#o;'S#r;'S;=`$Z<%lO#rU8ZYnQjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#o3]#o;'S#r;'S;=`$Z<%lO#r^9Q[!lWjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#i3]#i#j9v#j#o3]#o;'S#r;'S;=`$Z<%lO#rU9{[jSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#`3]#`#a:q#a#o3]#o;'S#r;'S;=`$Z<%lO#rU:v[jSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#`3]#`#a;l#a#o3]#o;'S#r;'S;=`$Z<%lO#rU;sYpQjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#o3]#o;'S#r;'S;=`$Z<%lO#r^<jY!nWjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#o3]#o;'S#r;'S;=`$Z<%lO#r^=a[!mWjSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#f3]#f#g>V#g#o3]#o;'S#r;'S;=`$Z<%lO#rU>[[jSOt#ruw#rx!_#r!_!`4Q!`#O#r#P#T#r#T#i3]#i#j7X#j#o3]#o;'S#r;'S;=`$Z<%lO#rU?XUzQjSOt#ruw#rx#O#r#P;'S#r;'S;=`$Z<%lO#r~?pO!v~",
-  tokenizers: [operatorTokenizer, 0, 1, 2, 3, tokenizer],
+  tokenizers: [operatorTokenizer, 1, 2, 3, tokenizer, new LocalTokenGroup("[~RP!O!PU~ZO!o~~", 11)],
   topRules: {"Program":[0,17]},
+  specialized: [{term: 13, get: (value: keyof typeof spec_Identifier) => spec_Identifier[value] || -1}],
   tokenPrec: 768
 })

src/parser/tests/basics.test.ts

@@ -286,12 +286,12 @@ describe('Assign', () => {
   })
 
   test('parses assignment with functions', () => {
-    expect('add = fn a b: a + b end').toMatchTree(`
+    expect('add = do a b: a + b end').toMatchTree(`
       Assign
         AssignableIdentifier add
         Eq =
         FunctionDef
-          keyword fn
+          keyword do
           Params
             AssignableIdentifier a
             AssignableIdentifier b
@@ -300,7 +300,7 @@ describe('Assign', () => {
             Identifier a
             Plus +
             Identifier b
-          end end`)
+          keyword end`)
   })
 })
 

src/parser/tests/control-flow.test.ts

@@ -45,7 +45,7 @@ describe('if/elsif/else', () => {
         ThenBlock
           FunctionCallOrIdentifier
             Identifier yes
-        end end
+        keyword end
     `)
   })
 
@@ -68,7 +68,7 @@ describe('if/elsif/else', () => {
           ThenBlock
             FunctionCallOrIdentifier
               Identifier y
-        end end
+        keyword end
     `)
   })
 
@@ -92,7 +92,7 @@ describe('if/elsif/else', () => {
           ThenBlock
             FunctionCallOrIdentifier
               Identifier y
-        end end
+        keyword end
     `)
   })
 
@@ -133,7 +133,21 @@ describe('if/elsif/else', () => {
           ThenBlock
             FunctionCallOrIdentifier
               Identifier oh-no
-        end end
+        keyword end
+    `)
+  })
+
+  test('does not parse identifiers that start with if', () => {
+    expect('iffy = if true: 2').toMatchTree(`
+      Assign
+        AssignableIdentifier iffy
+        Eq =
+        IfExpr
+          keyword if
+          Boolean true
+          colon :
+          ThenBlock
+            Number 2
     `)
   })
 })

src/parser/tests/dot-get.test.ts

@@ -27,41 +27,41 @@ describe('DotGet', () => {
   })
 
   test('function parameters are in scope within function body', () => {
-    expect('fn config: config.path end').toMatchTree(`
+    expect('do config: config.path end').toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier config
         colon :
         DotGet
           IdentifierBeforeDot config
           Identifier path
-        end end
+        keyword end
     `)
   })
 
   test('parameters out of scope outside function', () => {
-    expect('fn x: x.prop end; x.prop').toMatchTree(`
+    expect('do x: x.prop end; x.prop').toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
         colon :
         DotGet
           IdentifierBeforeDot x
           Identifier prop
-        end end
+        keyword end
       Word x.prop
     `)
   })
 
   test('multiple parameters work correctly', () => {
-    expect(`fn x y:
+    expect(`do x y:
   x.foo
   y.bar
 end`).toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
           AssignableIdentifier y
@@ -72,17 +72,17 @@ end`).toMatchTree(`
         DotGet
           IdentifierBeforeDot y
           Identifier bar
-        end end
+        keyword end
     `)
   })
 
   test('nested functions with scope isolation', () => {
-    expect(`fn x:
+    expect(`do x:
   x.outer
-  fn y: y.inner end
+  do y: y.inner end
 end`).toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
         colon :
@@ -90,15 +90,15 @@ end`).toMatchTree(`
           IdentifierBeforeDot x
           Identifier outer
         FunctionDef
-          keyword fn
+          keyword do
           Params
             AssignableIdentifier y
           colon :
           DotGet
             IdentifierBeforeDot y
             Identifier inner
-          end end
+          keyword end
-        end end
+        keyword end
     `)
   })
 

src/parser/tests/functions.test.ts

@@ -56,21 +56,21 @@ describe('calling functions', () => {
   })
 })
 
-describe('Fn', () => {
+describe('Do', () => {
   test('parses function no parameters', () => {
-    expect('fn: 1 end').toMatchTree(`
+    expect('do: 1 end').toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params 
         colon :
         Number 1
-        end end`)
+        keyword end`)
   })
 
   test('parses function with single parameter', () => {
-    expect('fn x: x + 1 end').toMatchTree(`
+    expect('do x: x + 1 end').toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
         colon :
@@ -78,13 +78,13 @@ describe('Fn', () => {
           Identifier x
           Plus +
           Number 1
-        end end`)
+        keyword end`)
   })
 
   test('parses function with multiple parameters', () => {
-    expect('fn x y: x * y end').toMatchTree(`
+    expect('do x y: x * y end').toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
           AssignableIdentifier y
@@ -93,16 +93,16 @@ describe('Fn', () => {
           Identifier x
           Star *
           Identifier y
-        end end`)
+        keyword end`)
   })
 
   test('parses multiline function with multiple statements', () => {
-    expect(`fn x y:
+    expect(`do x y:
   x * y
   x + 9
 end`).toMatchTree(`
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
           AssignableIdentifier y
@@ -115,6 +115,36 @@ end`).toMatchTree(`
           Identifier x
           Plus +
           Number 9
-        end end`)
+        keyword end`)
+  })
+
+  test('does not parse identifiers that start with fn', () => {
+    expect('fnnn = do x: x end').toMatchTree(`
+      Assign
+        AssignableIdentifier fnnn
+        Eq =
+        FunctionDef
+          keyword do
+          Params
+            AssignableIdentifier x
+          colon :
+          FunctionCallOrIdentifier
+            Identifier x
+          keyword end`)
+  })
+
+  test('does not parse identifiers that start with end', () => {
+    expect('enddd = do x: x end').toMatchTree(`
+      Assign
+        AssignableIdentifier enddd
+        Eq =
+        FunctionDef
+          keyword do
+          Params
+            AssignableIdentifier x
+          colon :
+          FunctionCallOrIdentifier
+            Identifier x
+          keyword end`)
   })
 })

src/parser/tests/multiline.test.ts

@@ -13,7 +13,7 @@ describe('multiline', () => {
 
   test('parses multiline functions', () => {
     expect(`
-      add = fn a b:
+      add = do a b:
         result = a + b
         result
       end
@@ -24,7 +24,7 @@ describe('multiline', () => {
         AssignableIdentifier add
         Eq =
         FunctionDef
-          keyword fn
+          keyword do
           Params
             AssignableIdentifier a
             AssignableIdentifier b
@@ -39,7 +39,7 @@ describe('multiline', () => {
           FunctionCallOrIdentifier
             Identifier result
 
-          end end
+          keyword end
       FunctionCall
         Identifier add
         PositionalArg
@@ -53,7 +53,7 @@ describe('multiline', () => {
       3
 
 
-      fn x y:
+      do x y:
   x
 end
 
@@ -61,14 +61,14 @@ end
       Number 3
 
       FunctionDef
-        keyword fn
+        keyword do
         Params
           AssignableIdentifier x
           AssignableIdentifier y
         colon :
         FunctionCallOrIdentifier
           Identifier x
-        end end
+        keyword end
     `)
   })
 })

src/parser/tests/pipes.test.ts

@@ -66,7 +66,7 @@ describe('pipe expressions', () => {
   })
 
   test('pipe with inline function', () => {
-    expect('items | each fn x: x end').toMatchTree(`
+    expect('items | each do x: x end').toMatchTree(`
       PipeExpr
         FunctionCallOrIdentifier
           Identifier items
@@ -75,13 +75,13 @@ describe('pipe expressions', () => {
           Identifier each
           PositionalArg
             FunctionDef
-              keyword fn
+              keyword do
               Params
                 AssignableIdentifier x
               colon :
               FunctionCallOrIdentifier
                 Identifier x
-              end end
+              keyword end
     `)
   })
 })