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nailc.nim
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nailc.nim
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##########################
# Nail Lang #
# Reactive Programming #
# By Photonic #
##########################
import strutils
import tables
import macros
import math
randomize()
proc nrandom(): string =
var result_var = ""
var f = open("/dev/urandom")
var r: int32
discard f.readBuffer(addr r, 4)
close(f)
if r < 0:
r = -r
for value in intToStr(r):
case value:
of '1': result_var.add("a")
of '2': result_var.add("b")
of '3': result_var.add("c")
of '4': result_var.add("d")
of '5': result_var.add("e")
of '6': result_var.add("f")
of '7': result_var.add("g")
of '8': result_var.add("h")
of '9': result_var.add("i")
of '0': result_var.add("j")
else: discard value
return result_var
#Declare the variables
var Container = initTable[string, string]()
var Dependencies = initTable[string, seq[string]]()
var AST: seq[seq[string]] = @[]
var order = ["BIND", "DEPENDS", "DIV", "MUL", "ADD", "SUB", "EQUAL", "ECHO"]
var operators = ["EQUAL", "BIND", "DEPENDS", "DIV", "MUL", "ADD", "SUB", "ECHO"]
var AST_NODES = initTable[string, seq[string]]()
var text_section: seq[string] = @[]
var data_section: seq[string] = @[]
var global_section: seq[string] = @[]
var start: seq[string] = @[]
var bss_section: seq[string] = @[]
var asm_variables: seq[string] = @[]
text_section.add("section .text")
text_section.add(" global _start")
data_section.add("section .data")
bss_section.add("section .bss")
start.add("_start:")
var asm_declaration = initTable[string, bool]()
asm_declaration["sprint"] = false
asm_declaration["quit"] = false
asm_declaration["iprint"] = false
asm_declaration["iprintln"] = false
var asm_functions: seq[string] = @[]
var asm_program: seq[string] = @[]
asm_program.add(";Generated by the Nail Compiler")
proc tokenize(program: string) =
var tokens = program.split(" ")
var t = 0
var AST_NODE: seq[string] = @[]
for token in tokens:
case token:
of ":=" :
add(AST_NODE, "DEPENDS")
var deps = tokens
var i = 0
while i < len(deps):
case deps[i]:
of "+", "-", "*", "/", "=", " ", ":=":
deps.delete(i)
i -= 1
i += 1
deps.delete(0)
add(AST_NODE, deps)
add(AST_NODE, "BIND")
add(AST_NODE, "EQUAL")
of "fn" : add(AST_NODE, "FUNC") #Parse from fn to RBRACE
of "{" : add(AST_NODE, "LBRACE")
of "}" : add(AST_NODE, "RBRACE")
of "+" : add(AST_NODE, "ADD")
of "-" : add(AST_NODE, "SUB")
of "*" : add(AST_NODE, "MUL")
of "/" : add(AST_NODE, "DIV")
of "=" : add(AST_NODE, "EQUAL")
of "echo" : add(AST_NODE, "ECHO")
of " " : discard
else : add(AST_NODE, token)
t += 1
if len(AST_NODE) > 0:
add(AST, AST_NODE)
proc genASM(op: string, expr1: string, expr2: string, result_var: string) =
if op == "add" or op == "sub":
try:
start.add(" mov eax, $#" % [intToStr(parseInt(expr1))])
except:
start.add(" mov eax, [$#]" % expr1)
try:
start.add(" mov ebx, $#" % [intToStr(parseInt(expr2))])
except:
start.add(" mov ebx, [$#]" % expr2)
start.add(" $# eax, ebx" % [op])
start.add(" mov [$#], eax" % [result_var])
if bss_section.contains(" $# resb 255" % [result_var]):
discard
else:
bss_section.add(" $# resb 255" % [result_var])
if op == "mul" or op == "div":
try:
start.add(" mov eax, $#" % [intToStr(parseInt(expr1))])
except:
#may have to add this line back in later on
#start.add(" mov eax, [$#]" % expr1)
discard
try:
start.add(" mov ebx, $#" % [intToStr(parseInt(expr2))])
except:
start.add(" mov ebx, [$#]" % expr2)
start.add(" $# ebx" % [op])
start.add(" mov [$#], eax" % [result_var])
if bss_section.contains(" $# resb 255" % [result_var]):
discard
else:
bss_section.add(" $# resb 255" % [result_var])
proc interpret*() =
var x = 0
while x < len(AST):
for value in order:
var i = 0
var node = AST[x]
var result_var = nrandom()
asm_variables.add(result_var)
while i < len(node):
var expr = node[i]
if expr == value:
if expr in operators:
var expr1 = ""
var expr2 = ""
try:
expr1 = node[i-1]
except IndexError:
discard
try:
expr2 = node[i+1]
except IndexError:
discard
if expr == "EQUAL":
for key, values in Dependencies: #WORK ON THIS!
var ast_node: seq[string] = @[]
if values.contains(node[i-1]):
add(ast_node, key)
add(ast_node, "EQUAL")
for expr in AST_NODES[key]:
add(ast_node, expr)
AST.insert(ast_node, x+1)
Container[node[i-1]] = expr2
node[i+1] = expr2
if expr2 in asm_variables:
start.add(" mov eax, [$#]" % [expr2])
start.add(" mov [$#], eax" % [expr1])
if (" $# resb 255" % [expr1]) notin bss_section:
if node[i-1] notin asm_variables:
bss_section.add(" $# resb 255" % [expr1])
else:
if node[i-1] notin asm_variables:
add(data_section, " $# dd $#" % [node[i-1], expr2.split(".")[0]])
asm_variables.add(node[i-1])
else:
start.add(" mov eax, $#" % [expr2])
start.add(" mov [$#], eax" % [expr1])
system.delete(node, i+1)
system.delete(node, i)
system.delete(node, i-1)
i -= 1
if expr == "DIV":
node[i] = result_var
genASM("div", expr1, expr2, result_var) #Add if mul or div to the genASM
system.delete(node, i+1)
system.delete(node, i-1)
i -= 2
if expr == "MUL":
node[i] = result_var
genASM("mul", expr1, expr2, result_var) #Add if mul or div to the genASM
system.delete(node, i+1)
system.delete(node, i-1)
i -= 2
if expr == "ADD": #Turn this into a function that automatically changes the operatation
#That way I can call genASM("add", expr1, expr2 ); genASM("sub", expr1, expr2); etc
node[i] = result_var
genASM("add", expr1, expr2, result_var)
system.delete(node, i+1)
system.delete(node, i-1)
i -= 2
if expr == "SUB":
node[i] = result_var
genASM("sub", expr1, expr2, result_var)
system.delete(node, i+1)
system.delete(node, i-1)
i -= 2
if expr == "DEPENDS":
var c = i
system.delete(node, c)
while node[c] != "BIND":
var dep = node[c]
if Dependencies.haskey(expr1):
if not Dependencies[expr1].contains(dep):
Dependencies.mget(expr1).add(dep)
else:
Dependencies[expr1] = @[]
Dependencies.mget(expr1).add(dep)
system.delete(node, c)
system.delete(node, c)
if expr == "BIND":
var b = i+2
while b < len(node):
if AST_NODES.has_key(node[0]):
AST_NODES.mget(node[0]).add(node[b])
else:
AST_NODES[node[0]] = @[]
AST_NODES.mget(node[0]).add(node[b])
b+=1
if expr == "ECHO":
try:
start.add(" mov eax, $#" % [intToStr(parseInt(node[i+1]))])
except:
start.add(" mov eax, [$#]" % node[i+1])
start.add(" call iprintln")
system.delete(node, i+1)
system.delete(node, i)
AST[x] = node
i = i + 1
if len(AST[x]) == 0:
system.delete(AST, x)
# echo "REAL",AST
start.add(" call quit")
asm_functions.add("quit:")
asm_functions.add(" mov ebx, 0")
asm_functions.add(" mov eax, 1")
asm_functions.add(" int 80h")
asm_functions.add(" ret")
proc Reactive(r: string, value: string) =
if Container.hasKey(r):
Container.mget(r).add(r)
else:
Container[r] = ""
Container.mget(r).add(r)
when isMainModule:
import os
let program = if paramCount() > 0: readFile paramStr(1)
else: readAll stdin
for line in program.split("\n"):
tokenize line
echo AST
interpret()
for value in text_section:
asm_program.add(value)
for value in bss_section:
asm_program.add(value)
for value in data_section:
asm_program.add(value)
for value in global_section:
asm_program.add(value)
for value in start:
asm_program.add(value)
for value in asm_program:
if "iprintln" in value:
if asm_declaration["iprintln"] == false:
asm_declaration["iprintln"] = true
asm_functions.add("iprintln:")
asm_functions.add(" call iprint")
asm_functions.add(" push eax")
asm_functions.add(" mov eax, 0Ah")
asm_functions.add(" push eax")
asm_functions.add(" mov eax, esp")
asm_functions.add(" call sprint")
asm_functions.add(" pop eax")
asm_functions.add(" pop eax")
asm_functions.add(" ret")
asm_functions.add("iprint:")
asm_functions.add(" push eax")
asm_functions.add(" push ecx")
asm_functions.add(" push edx")
asm_functions.add(" push esi")
asm_functions.add(" mov ecx, 0")
asm_functions.add("asciiLoop:")
asm_functions.add(" inc ecx")
asm_functions.add(" mov edx, 0")
asm_functions.add(" mov esi, 10")
asm_functions.add(" idiv esi")
asm_functions.add(" add edx, 48")
asm_functions.add(" push edx")
asm_functions.add(" cmp eax, 0")
asm_functions.add(" jnz asciiLoop")
asm_functions.add("printLoop:")
asm_functions.add(" dec ecx")
asm_functions.add(" mov eax, esp")
asm_functions.add(" call sprint")
asm_functions.add(" pop eax")
asm_functions.add(" cmp ecx, 0")
asm_functions.add(" jnz printLoop")
asm_functions.add(" pop esi")
asm_functions.add(" pop edx")
asm_functions.add(" pop ecx")
asm_functions.add(" pop eax")
asm_functions.add(" ret")
asm_functions.add("slen:")
asm_functions.add(" push ebx")
asm_functions.add(" mov ebx, eax")
asm_functions.add("nextchar:")
asm_functions.add(" cmp byte [eax], 0")
asm_functions.add(" jz finished")
asm_functions.add(" inc eax")
asm_functions.add(" jmp nextchar")
asm_functions.add("finished:")
asm_functions.add(" sub eax, ebx")
asm_functions.add(" pop ebx")
asm_functions.add(" ret")
asm_functions.add("sprint:")
asm_functions.add(" push edx")
asm_functions.add(" push ecx")
asm_functions.add(" push ebx")
asm_functions.add(" push eax")
asm_functions.add(" call slen")
asm_functions.add(" mov edx, eax")
asm_functions.add(" pop eax ")
asm_functions.add(" mov ecx, eax")
asm_functions.add(" mov ebx, 1")
asm_functions.add(" mov eax, 4")
asm_functions.add(" int 80h")
asm_functions.add(" pop ebx")
asm_functions.add(" pop ecx")
asm_functions.add(" pop edx")
asm_functions.add(" ret")
for value in asm_functions:
asm_program.add(value)
for value in asm_program:
echo value
#type
# R = ref object of Reactive
# name*: self
# value*: string