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This commit is contained in:
Brandon Dyck
2025-09-07 22:15:25 -06:00
parent 43107e7435
commit 46f2bbcc9b
5 changed files with 136 additions and 54 deletions
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11
ldtext/LDText.fs
View File

@@ -1,13 +1,20 @@
module LDText
module Ast =
type Rung = Step list
type Rung =
| Rung of Step list
and Instr = { Op: string; Args: Operand list }
and BranchArm =
| BranchArm of Step list
and Branch =
| Branch of BranchArm list
and Step =
| StepInstr of Instr
| StepBranch of Step list
| StepBranch of Branch
and Operand =
| OperandHole

159
ldtext/Parser.fs
View File

@@ -38,6 +38,8 @@ type nonTerminalId =
| NONTERM__startrung
| NONTERM_rung
| NONTERM_steps
| NONTERM_branch
| NONTERM_branch_arms
| NONTERM_instr
| NONTERM_operands
| NONTERM_operand
@@ -78,12 +80,17 @@ let prodIdxToNonTerminal (prodIdx:int) =
| 1 -> NONTERM_rung
| 2 -> NONTERM_steps
| 3 -> NONTERM_steps
| 4 -> NONTERM_instr
| 5 -> NONTERM_operands
| 6 -> NONTERM_operands
| 7 -> NONTERM_operands
| 8 -> NONTERM_operand
| 9 -> NONTERM_operand
| 4 -> NONTERM_steps
| 5 -> NONTERM_branch
| 6 -> NONTERM_branch_arms
| 7 -> NONTERM_branch_arms
| 8 -> NONTERM_branch_arms
| 9 -> NONTERM_instr
| 10 -> NONTERM_operands
| 11 -> NONTERM_operands
| 12 -> NONTERM_operands
| 13 -> NONTERM_operand
| 14 -> NONTERM_operand
| _ -> failwith "prodIdxToNonTerminal: bad production index"
let _fsyacc_endOfInputTag = 11
@@ -114,38 +121,38 @@ let _fsyacc_dataOfToken (t:token) =
| RIGHT_PAREN -> (null : System.Object)
| LEFT_PAREN -> (null : System.Object)
| IDENTIFIER _fsyacc_x -> Microsoft.FSharp.Core.Operators.box _fsyacc_x
let _fsyacc_gotos = [| 0us;65535us;1us;65535us;0us;1us;2us;65535us;0us;2us;5us;6us;2us;65535us;0us;5us;5us;5us;2us;65535us;8us;9us;12us;13us;2us;65535us;8us;11us;12us;11us;|]
let _fsyacc_sparseGotoTableRowOffsets = [|0us;1us;3us;6us;9us;12us;|]
let _fsyacc_stateToProdIdxsTableElements = [| 1us;0us;1us;0us;1us;1us;1us;1us;1us;1us;1us;3us;1us;3us;1us;4us;1us;4us;1us;4us;1us;4us;2us;6us;7us;1us;6us;1us;6us;1us;8us;1us;9us;|]
let _fsyacc_stateToProdIdxsTableRowOffsets = [|0us;2us;4us;6us;8us;10us;12us;14us;16us;18us;20us;22us;25us;27us;29us;31us;|]
let _fsyacc_action_rows = 16
let _fsyacc_actionTableElements = [|1us;16386us;8us;7us;0us;49152us;1us;32768us;2us;3us;1us;32768us;0us;4us;0us;16385us;1us;16386us;8us;7us;0us;16387us;1us;32768us;7us;8us;2us;16389us;1us;15us;8us;14us;1us;32768us;6us;10us;0us;16388us;1us;16391us;3us;12us;2us;16389us;1us;15us;8us;14us;0us;16390us;0us;16392us;0us;16393us;|]
let _fsyacc_actionTableRowOffsets = [|0us;2us;3us;5us;7us;8us;10us;11us;13us;16us;18us;19us;21us;24us;25us;26us;|]
let _fsyacc_reductionSymbolCounts = [|1us;3us;0us;2us;4us;0us;3us;1us;1us;1us;|]
let _fsyacc_productionToNonTerminalTable = [|0us;1us;2us;2us;3us;4us;4us;4us;5us;5us;|]
let _fsyacc_immediateActions = [|65535us;49152us;65535us;65535us;16385us;65535us;16387us;65535us;65535us;65535us;16388us;65535us;65535us;16390us;16392us;16393us;|]
let _fsyacc_gotos = [| 0us;65535us;1us;65535us;0us;1us;5us;65535us;0us;2us;5us;6us;7us;8us;9us;12us;13us;12us;5us;65535us;0us;7us;5us;7us;7us;7us;9us;7us;13us;7us;2us;65535us;9us;10us;13us;14us;5us;65535us;0us;5us;5us;5us;7us;5us;9us;5us;13us;5us;2us;65535us;16us;17us;20us;21us;2us;65535us;16us;19us;20us;19us;|]
let _fsyacc_sparseGotoTableRowOffsets = [|0us;1us;3us;9us;15us;18us;24us;27us;|]
let _fsyacc_stateToProdIdxsTableElements = [| 1us;0us;1us;0us;1us;1us;1us;1us;1us;1us;1us;3us;1us;3us;1us;4us;1us;4us;1us;5us;1us;5us;1us;5us;2us;7us;8us;1us;7us;1us;7us;1us;9us;1us;9us;1us;9us;1us;9us;2us;11us;12us;1us;11us;1us;11us;1us;13us;1us;14us;|]
let _fsyacc_stateToProdIdxsTableRowOffsets = [|0us;2us;4us;6us;8us;10us;12us;14us;16us;18us;20us;22us;24us;27us;29us;31us;33us;35us;37us;39us;42us;44us;46us;48us;|]
let _fsyacc_action_rows = 24
let _fsyacc_actionTableElements = [|2us;16386us;5us;9us;8us;15us;0us;49152us;1us;32768us;2us;3us;1us;32768us;0us;4us;0us;16385us;2us;16386us;5us;9us;8us;15us;0us;16387us;2us;16386us;5us;9us;8us;15us;0us;16388us;2us;16386us;5us;9us;8us;15us;1us;32768us;4us;11us;0us;16389us;1us;16392us;3us;13us;2us;16386us;5us;9us;8us;15us;0us;16391us;1us;32768us;7us;16us;2us;16394us;1us;23us;8us;22us;1us;32768us;6us;18us;0us;16393us;1us;16396us;3us;20us;2us;16394us;1us;23us;8us;22us;0us;16395us;0us;16397us;0us;16398us;|]
let _fsyacc_actionTableRowOffsets = [|0us;3us;4us;6us;8us;9us;12us;13us;16us;17us;20us;22us;23us;25us;28us;29us;31us;34us;36us;37us;39us;42us;43us;44us;|]
let _fsyacc_reductionSymbolCounts = [|1us;3us;0us;2us;2us;3us;0us;3us;1us;4us;0us;3us;1us;1us;1us;|]
let _fsyacc_productionToNonTerminalTable = [|0us;1us;2us;2us;2us;3us;4us;4us;4us;5us;6us;6us;6us;7us;7us;|]
let _fsyacc_immediateActions = [|65535us;49152us;65535us;65535us;16385us;65535us;16387us;65535us;16388us;65535us;65535us;16389us;65535us;65535us;16391us;65535us;65535us;65535us;16393us;65535us;65535us;16395us;16397us;16398us;|]
let _fsyacc_reductions = lazy [|
# 128 "Parser.fs"
# 135 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> Instr list in
let _1 = parseState.GetInput(1) :?> Rung in
Microsoft.FSharp.Core.Operators.box
(
(
raise (FSharp.Text.Parsing.Accept(Microsoft.FSharp.Core.Operators.box _1))
)
: 'gentype__startrung));
# 137 "Parser.fs"
# 144 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> 'gentype_steps in
Microsoft.FSharp.Core.Operators.box
(
(
# 26 "Parser.fsy"
_1
Rung _1
)
# 26 "Parser.fsy"
: Instr list));
# 148 "Parser.fs"
: Rung));
# 155 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
Microsoft.FSharp.Core.Operators.box
(
@@ -155,7 +162,7 @@ let _fsyacc_reductions = lazy [|
)
# 29 "Parser.fsy"
: 'gentype_steps));
# 158 "Parser.fs"
# 165 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> 'gentype_instr in
let _2 = parseState.GetInput(2) :?> 'gentype_steps in
@@ -163,78 +170,134 @@ let _fsyacc_reductions = lazy [|
(
(
# 30 "Parser.fsy"
_1 :: _2
StepInstr _1 :: _2
)
# 30 "Parser.fsy"
: 'gentype_steps));
# 170 "Parser.fs"
# 177 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> string in
let _3 = parseState.GetInput(3) :?> 'gentype_operands in
let _1 = parseState.GetInput(1) :?> 'gentype_branch in
let _2 = parseState.GetInput(2) :?> 'gentype_steps in
Microsoft.FSharp.Core.Operators.box
(
(
# 33 "Parser.fsy"
{ Op = _1; Args = _3 }
# 31 "Parser.fsy"
StepBranch _1 :: _2
)
# 33 "Parser.fsy"
: 'gentype_instr));
# 182 "Parser.fs"
# 31 "Parser.fsy"
: 'gentype_steps));
# 189 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _2 = parseState.GetInput(2) :?> 'gentype_branch_arms in
Microsoft.FSharp.Core.Operators.box
(
(
# 34 "Parser.fsy"
Branch _2
)
# 34 "Parser.fsy"
: 'gentype_branch));
# 200 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
Microsoft.FSharp.Core.Operators.box
(
(
# 36 "Parser.fsy"
# 37 "Parser.fsy"
[]
)
# 36 "Parser.fsy"
# 37 "Parser.fsy"
: 'gentype_branch_arms));
# 210 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> 'gentype_steps in
let _3 = parseState.GetInput(3) :?> 'gentype_branch_arms in
Microsoft.FSharp.Core.Operators.box
(
(
# 38 "Parser.fsy"
BranchArm _1 :: _3
)
# 38 "Parser.fsy"
: 'gentype_branch_arms));
# 222 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> 'gentype_steps in
Microsoft.FSharp.Core.Operators.box
(
(
# 39 "Parser.fsy"
[ BranchArm _1 ]
)
# 39 "Parser.fsy"
: 'gentype_branch_arms));
# 233 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> string in
let _3 = parseState.GetInput(3) :?> 'gentype_operands in
Microsoft.FSharp.Core.Operators.box
(
(
# 42 "Parser.fsy"
{ Op = _1; Args = _3 }
)
# 42 "Parser.fsy"
: 'gentype_instr));
# 245 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
Microsoft.FSharp.Core.Operators.box
(
(
# 45 "Parser.fsy"
[]
)
# 45 "Parser.fsy"
: 'gentype_operands));
# 192 "Parser.fs"
# 255 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> 'gentype_operand in
let _3 = parseState.GetInput(3) :?> 'gentype_operands in
Microsoft.FSharp.Core.Operators.box
(
(
# 37 "Parser.fsy"
# 46 "Parser.fsy"
_1 :: _3
)
# 37 "Parser.fsy"
# 46 "Parser.fsy"
: 'gentype_operands));
# 204 "Parser.fs"
# 267 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> 'gentype_operand in
Microsoft.FSharp.Core.Operators.box
(
(
# 38 "Parser.fsy"
# 47 "Parser.fsy"
[ _1 ]
)
# 38 "Parser.fsy"
# 47 "Parser.fsy"
: 'gentype_operands));
# 215 "Parser.fs"
# 278 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
let _1 = parseState.GetInput(1) :?> string in
Microsoft.FSharp.Core.Operators.box
(
(
# 41 "Parser.fsy"
# 50 "Parser.fsy"
OperandTag _1
)
# 41 "Parser.fsy"
# 50 "Parser.fsy"
: 'gentype_operand));
# 226 "Parser.fs"
# 289 "Parser.fs"
(fun (parseState : FSharp.Text.Parsing.IParseState) ->
Microsoft.FSharp.Core.Operators.box
(
(
# 42 "Parser.fsy"
# 51 "Parser.fsy"
OperandHole
)
# 42 "Parser.fsy"
# 51 "Parser.fsy"
: 'gentype_operand));
|]
# 237 "Parser.fs"
# 300 "Parser.fs"
let tables : FSharp.Text.Parsing.Tables<_> =
{ reductions = _fsyacc_reductions.Value;
endOfInputTag = _fsyacc_endOfInputTag;
@@ -256,5 +319,5 @@ let tables : FSharp.Text.Parsing.Tables<_> =
numTerminals = 12;
productionToNonTerminalTable = _fsyacc_productionToNonTerminalTable }
let engine lexer lexbuf startState = tables.Interpret(lexer, lexbuf, startState)
let rung lexer lexbuf : Instr list =
let rung lexer lexbuf : Rung =
engine lexer lexbuf 0 :?> _

4
ldtext/Parser.fsi
View File

@@ -26,6 +26,8 @@ type nonTerminalId =
| NONTERM__startrung
| NONTERM_rung
| NONTERM_steps
| NONTERM_branch
| NONTERM_branch_arms
| NONTERM_instr
| NONTERM_operands
| NONTERM_operand
@@ -40,4 +42,4 @@ val prodIdxToNonTerminal: int -> nonTerminalId
/// This function gets the name of a token as a string
val token_to_string: token -> string
val rung : (FSharp.Text.Lexing.LexBuffer<'cty> -> token) -> FSharp.Text.Lexing.LexBuffer<'cty> -> (Instr list)
val rung : (FSharp.Text.Lexing.LexBuffer<'cty> -> token) -> FSharp.Text.Lexing.LexBuffer<'cty> -> (Rung)

15
ldtext/Parser.fsy
View File

@@ -18,16 +18,25 @@ open FSharp.Text.Lexing
%start rung
// return type of parser, marked by start token
%type <Instr list> rung
%type <Rung> rung
%%
rung:
| steps SEMICOLON EOF { $1 }
| steps SEMICOLON EOF { Rung $1 }
steps:
| { [] }
| instr steps { $1 :: $2 }
| instr steps { StepInstr $1 :: $2 }
| branch steps { StepBranch $1 :: $2 }
branch:
| LEFT_BRACKET branch_arms RIGHT_BRACKET { Branch $2 }
branch_arms:
| { [] }
| steps COMMA branch_arms { BranchArm $1 :: $3}
| steps { [ BranchArm $1 ] }
instr:
| IDENTIFIER LEFT_PAREN operands RIGHT_PAREN { { Op = $1; Args = $3 } }

1
ldtext/test.fsx
View File

@@ -22,5 +22,6 @@ parse "abc();"
parse "abc(def);"
parse "abc(def,ghi);"
parse "abc(def,ghi) a(b) ;"
parse "a() [ b() c(), d(), , e() [ f() ] g() ] h();"
if failed then exit 1 else exit 0