core/utils.nim
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import tables, strutils, macros, critbits, json, os, regex import parser, interpreter # Predicates proc isSymbol*(s: MinValue): bool = return s.kind == minSymbol proc isQuotation*(s: MinValue): bool = return s.kind == minQuotation proc isString*(s: MinValue): bool = return s.kind == minString proc isFloat*(s: MinValue): bool = return s.kind == minFloat proc isInt*(s: MinValue): bool = return s.kind == minInt proc isNumber*(s: MinValue): bool = return s.kind == minInt or s.kind == minFloat proc isBool*(s: MinValue): bool = return s.kind == minBool proc isStringLike*(s: MinValue): bool = return s.isSymbol or s.isString or (s.isQuotation and s.qVal.len == 1 and s.qVal[0].isSymbol) proc isDictionary*(q: MinValue): bool = if not q.isQuotation: return false if q.qVal.len == 0: return true for val in q.qVal: if not val.isQuotation or val.qVal.len != 2 or not val.qVal[0].isSymbol: return false return true # Constructors proc newVal*(s: string): MinValue = return MinValue(kind: minString, strVal: s) proc newVal*(s: cstring): MinValue = return MinValue(kind: minString, strVal: $s) proc newVal*(q: seq[MinValue]): MinValue = return MinValue(kind: minQuotation, qVal: q) proc newVal*(s: BiggestInt): MinValue = return MinValue(kind: minInt, intVal: s) proc newVal*(s: BiggestFloat): MinValue = return MinValue(kind: minFloat, floatVal: s) proc newVal*(s: bool): MinValue = return MinValue(kind: minBool, boolVal: s) proc newSym*(s: string): MinValue = return MinValue(kind: minSymbol, symVal: s) proc newQuotation*(): MinValue = return MinValue(kind: minQuotation, qVal: newSeq[MinValue](0)) # Filetype and permissions proc filetype*(p: PathComponent): string = case p of pcFile: return "file" of pcLinkToFile: return "filelink" of pcDir: return "dir" of pcLinkToDir: return "dirlink" proc unixPermissions*(s: set[FilePermission]): int = result = 0 for p in s: case p: of fpUserRead: result += 400 of fpUserWrite: result += 200 of fpUserExec: result += 100 of fpGroupRead: result += 40 of fpGroupWrite: result += 20 of fpGroupExec: result += 10 of fpOthersRead: result += 4 of fpOthersWrite: result += 2 of fpOthersExec: result += 1 proc toFilePermissions*(p: BiggestInt): set[FilePermission] = let user = ($p)[0].int let group = ($p)[1].int let others = ($p)[2].int if user == 1: result.incl fpUserExec if user == 2: result.incl fpUserWrite if user == 3: result.incl fpUserExec result.incl fpUserWrite if user == 4: result.incl fpUserRead if user == 5: result.incl fpUserRead result.incl fpUserExec if user == 6: result.incl fpUserRead result.incl fpUserWrite if user == 7: result.incl fpUserRead result.incl fpUserWrite result.incl fpUserExec if group == 1: result.incl fpGroupExec if group == 2: result.incl fpGroupWrite if group == 3: result.incl fpGroupExec result.incl fpGroupWrite if group == 4: result.incl fpGroupRead if group == 5: result.incl fpGroupRead result.incl fpGroupExec if group == 6: result.incl fpGroupRead result.incl fpGroupWrite if group == 7: result.incl fpGroupRead result.incl fpGroupWrite result.incl fpGroupExec if others == 1: result.incl fpOthersExec if others == 2: result.incl fpOthersWrite if others == 3: result.incl fpOthersExec result.incl fpOthersWrite if others == 4: result.incl fpOthersRead if others == 5: result.incl fpOthersRead result.incl fpOthersExec if others == 6: result.incl fpOthersRead result.incl fpOthersWrite if others == 7: result.incl fpOthersRead result.incl fpOthersWrite result.incl fpOthersExec proc getString*(v: MinValue): string = if v.isSymbol: return v.symVal elif v.isString: return v.strVal elif v.isQuotation: if v.qVal.len != 1: raiseInvalid("Quotation is not a quoted symbol") let sym = v.qVal[0] if sym.isSymbol: return sym.symVal else: raiseInvalid("Quotation is not a quoted symbol") proc warn*(s: string) = stderr.writeLine s proc previous*(scope: ref MinScope): ref MinScope = if scope.parent.isNil: return scope #### was: ROOT else: return scope.parent proc replace*[T](c: var CritBitTree, s: string, v: T): T {.discardable.}= if c.hasKey(s): c.excl(s) c[s] = v proc define*(i: In, name: string): ref MinScope = var scope = new MinScope scope.name = name scope.parent = i.scope return scope proc symbol*(scope: ref MinScope, sym: string, p: MinOperatorProc): ref MinScope = scope.symbols[sym] = MinOperator(prc: p, kind: minProcOp, sealed: true) return scope proc symbol*(scope: ref MinScope, sym: string, v: MinValue): ref MinScope = scope.symbols[sym] = MinOperator(val: v, kind: minValOp, sealed: true) return scope proc sigil*(scope: ref MinScope, sym: string, p: MinOperatorProc): ref MinScope = scope.previous.sigils[sym] = MinOperator(prc: p, kind: minProcOp, sealed: true) return scope proc sigil*(scope: ref MinScope, sym: string, v: MinValue): ref MinScope = scope.previous.sigils[sym] = MinOperator(val: v, kind: minValOp, sealed: true) return scope proc finalize*(scope: ref MinScope) = var mdl = newSeq[MinValue](0).newVal mdl.scope = scope let op = proc(i: In) {.gcsafe, closure.} = i.evaluating = true i.push mdl i.evaluating = false mdl.scope.previous.symbols[scope.name] = MinOperator(kind: minProcOp, prc: op) template alias*[T](varname: untyped, value: var T) = var varname {.inject.}: type(value) shallowCopy varname, value proc to*(q: MinValue, T: typedesc): T = return cast[T](q.obj) proc `%`*(c: CritBitTree[string]): JsonNode = result = newJObject() for key, value in c.pairs: result[key] = %value proc critbit*(o: JsonNode): CritBitTree[string] = for key, value in o.pairs: result[key] = value.getStr proc `%`*(a: MinValue): JsonNode = case a.kind: of minBool: return %a.boolVal of minSymbol: return %(";sym:$1" % [a.symVal]) of minString: return %a.strVal of minInt: return %a.intVal of minFloat: return %a.floatVal of minQuotation: if a.isDictionary: result = newJObject() for i in a.qVal: result[$i.qVal[0].symVal] = %i.qVal[1] else: result = newJArray() for i in a.qVal: result.add %i proc fromJson*(json: JsonNode): MinValue = case json.kind: of JNull: result = newSeq[MinValue](0).newVal of JBool: result = json.getBVal.newVal of JInt: result = json.getNum.newVal of JFloat: result = json.getFNum.newVal of JString: let s = json.getStr if s.match("^;sym:"): result = regex.replace(s, "^;sym:", "").newSym else: result = json.getStr.newVal of JObject: var res = newSeq[MinValue](0) for key, value in json.pairs: res.add @[key.newSym, value.fromJson].newVal return res.newVal of JArray: var res = newSeq[MinValue](0) for value in json.items: res.add value.fromJson return res.newVal # Dictionary Methods proc dget*(q: MinValue, s: MinValue): MinValue = # Assumes q is a dictionary for v in q.qVal: if v.qVal[0].getString == s.getString: return v.qVal[1] raiseInvalid("Key '$1' not found" % [s.getString]) proc ddel*(q: var MinValue, s: MinValue): MinValue = # Assumes q is a dictionary var found = false var c = -1 for v in q.qVal: c.inc if v.qVal[0].getString == s.getString: found = true break if found: q.qVal.delete(c) return q proc dset*(q: var MinValue, s: MinValue, m: MinValue): MinValue {.discardable.}= # Assumes q is a dictionary var found = false var c = -1 for v in q.qVal: c.inc if v.qVal[0].getString == s.getString: found = true break if found: q.qVal.delete(c) q.qVal.insert(@[s.getString.newSym, m].newVal, c) return q proc keys*(q: MinValue): MinValue = # Assumes q is a dictionary result = newSeq[MinValue](0).newVal for v in q.qVal: result.qVal.add v.qVal[0] proc values*(q: MinValue): MinValue = # Assumes q is a dictionary result = newSeq[MinValue](0).newVal for v in q.qVal: result.qVal.add v.qVal[1] # Validators proc reqBool*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isBool: raiseInvalid("A bool value is required on the stack") proc reqTwoBools*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not a.isBool or not b.isBool: raiseInvalid("Two bool values are required on the stack") proc reqInt*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isInt: raiseInvalid("An integer is required on the stack") proc reqNumber*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isNumber: raiseInvalid("A number is required on the stack") proc reqTwoInts*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not a.isInt or not b.isInt: raiseInvalid("Two integers are required on the stack") proc reqQuotation*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation: raiseInvalid("A quotation is required on the stack") proc reqIntAndQuotation*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not (a.isInt and b.isQuotation): raiseInvalid("An integer and a quotation are required on the stack") proc reqTwoNumbers*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not (a.isNumber and b.isNumber): raiseInvalid("Two numbers are required on the stack") proc reqTwoNumbersOrStrings*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not (a.isString and b.isString or a.isNumber and b.isNumber): raiseInvalid("Two numbers or two strings are required on the stack") proc reqIntAndString*(i: var MinInterpreter, b, a: var MinValue) = b = i.pop a = i.pop if not (a.isString and b.isInt): raiseInvalid("A string and a number are required on the stack") proc reqString*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isString: raiseInvalid("A string is required on the stack") proc reqStringLikeAndQuotation*(i: var MinInterpreter, a, q: var MinValue) = a = i.pop q = i.pop if not a.isStringLike or not q.isQuotation: raiseInvalid("A string or symbol and a quotation are required on the stack") proc reqQuotationAndString*(i: var MinInterpreter, q, a: var MinValue) = q = i.pop a = i.pop if not a.isString or not q.isQuotation: raiseInvalid("A string and a quotation are required on the stack") proc reqStringOrQuotation*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation and not a.isString: raiseInvalid("A quotation or a string is required on the stack") proc reqStringLike*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isStringLike: raiseInvalid("A quoted symbol or a string is required on the stack") proc reqTwoStrings*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not a.isString or not b.isString: raiseInvalid("Two strings are required on the stack") proc reqTwoStringLike*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not a.isStringLike or not b.isStringLike: raiseInvalid("Two symbols or strings are required on the stack") proc reqThreeStrings*(i: var MinInterpreter, a, b, c: var MinValue) = a = i.pop b = i.pop c = i.pop if not a.isString or not b.isString or not c.isString: raiseInvalid("Three strings are required on the stack") proc reqTwoQuotations*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not a.isQuotation or not b.isQuotation: raiseInvalid("Two quotations are required on the stack") proc reqTwoQuotationsOrStrings*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not (a.isQuotation and b.isQuotation or a.isString and b.isString): raiseInvalid("Two quotations or two strings are required on the stack") proc reqThreeQuotations*(i: var MinInterpreter, a, b, c: var MinValue) = a = i.pop b = i.pop c = i.pop if not a.isQuotation or not b.isQuotation or not c.isQuotation: raiseInvalid("Three quotations are required on the stack") proc reqFourQuotations*(i: var MinInterpreter, a, b, c, d: var MinValue) = a = i.pop b = i.pop c = i.pop d = i.pop if not a.isQuotation or not b.isQuotation or not c.isQuotation or not d.isQuotation: raiseInvalid("Four quotations are required on the stack") proc reqTwoSimilarTypesNonSymbol*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not ((a.kind == a.kind or (a.isNumber and a.isNumber)) and not a.isSymbol): raiseInvalid("Two non-symbol values of similar type are required on the stack") proc reqDictionary*(i: In, q: var MinValue) = q = i.pop if not q.isDictionary: raiseInvalid("An dictionary is required on the stack") |