lib/min_stack.nim
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import tables, random import ../core/parser, ../core/value, ../core/interpreter, ../core/utils # Operations on the whole stack proc stack_module*(i: In)= i.define() .symbol("newstack") do (i: In): while i.stack.len > 0: discard i.pop .symbol("stack") do (i: In): i.push i.stack.newVal(i.scope) .symbol("unstack") do (i: In): var q: MinValue i.reqQuotation q i.stack = q.qVal .symbol("id") do (i: In): discard .symbol("pop") do (i: In): if i.stack.len < 1: raiseEmptyStack() discard i.pop # (pop) dip .symbol("popd") do (i: In): i.push newVal(@["pop".newSym], i.scope) i.push "dip".newSym # ((pop) dip unquote) .symbol("k") do (i: In): i.push newVal(@["pop".newSym], i.scope) i.push "dip".newSym i.push "unquote".newSym .symbol("dup") do (i: In): i.push i.peek # (dup) dip .symbol("dupd") do (i: In): i.push newVal(@["dup".newSym], i.scope) i.push "dip".newSym #((dup) dip unquote) .symbol("q") do (i: In): i.push newVal(@["dup".newSym], i.scope) i.push "dip".newSym i.push "unquote".newSym .symbol("dip") do (i: In): var q: MinValue i.reqQuotation q let v = i.pop i.unquote(q) i.push v # ((dip) cons cons) .symbol("take") do (i: In): i.push newVal(@["dip".newSym], i.scope) i.push "cons".newSym i.push "cons".newSym .symbol("swap") do (i: In): if i.stack.len < 2: raiseEmptyStack() let a = i.pop let b = i.pop i.push a i.push b # (swap) dip .symbol("swapd") do (i: In): i.push newVal(@["swap".newSym], i.scope) i.push "dip".newSym # ((swap) dip unquote) .symbol("c") do (i: In): i.push newVal(@["swap".newSym], i.scope) i.push "dip".newSym i.push "unquote".newSym .symbol("cons") do (i: In): var q: MinValue i.reqQuotation q let v = i.pop q.qVal = @[v] & q.qVal i.push q # (() cons dip) .symbol("dig1") do (i: In): i.push newVal(@[], i.scope) i.push "cons".newSym i.push "dip".newSym # (() cons cons dip) .symbol("dig2") do (i: In): i.push newVal(@[], i.scope) i.push "cons".newSym i.push "cons".newSym i.push "dip".newSym # (() cons cons cons dip) .symbol("dig3") do (i: In): i.push newVal(@[], i.scope) i.push "cons".newSym i.push "cons".newSym i.push "cons".newSym i.push "dip".newSym # ((() cons) dip swap unquote) .symbol("bury1") do (i: In): i.push newVal(@[newVal(@[], i.scope), "cons".newSym], i.scope) i.push "dip".newSym i.push "swap".newSym i.push "unquote".newSym # ((() cons cons) dip swap unquote) .symbol("bury2") do (i: In): i.push newVal(@[newVal(@[], i.scope), "cons".newSym, "cons".newSym], i.scope) i.push "dip".newSym i.push "swap".newSym i.push "unquote".newSym # ((() cons cons cons) dip swap unquote) .symbol("bury3") do (i: In): i.push newVal(@[newVal(@[], i.scope), "cons".newSym, "cons".newSym, "cons".newSym], i.scope) i.push "dip".newSym i.push "swap".newSym i.push "unquote".newSym .symbol("swons") do (i: In): i.push "swap".newSym i.push "cons".newSym .symbol("sip") do (i: In): var a, b: MinValue i.reqTwoQuotations a, b i.push b i.unquote(a) i.push b .finalize("stack") |