all repos — min @ 3e00bd82d4c2a566292ae593e2dee73f10c7328b

A small but practical concatenative programming language.

lib/min_logic.nim

 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
import 
  tables
import 
  ../core/parser, 
  ../core/value, 
  ../core/interpreter, 
  ../core/utils

# Comparison operators


proc logic_module*(i: In)=
  let def = i.define()
  
  def.symbol(">") do (i: In):
    var n1, n2: MinValue
    i.reqTwoNumbersOrStrings n2, n1
    if n1.isNumber and n2.isNumber:
      if n1.isInt and n2.isInt:
        i.push newVal(n1.intVal > n2.intVal)
      elif n1.isInt and n2.isFloat:
        i.push newVal(n1.intVal.float > n2.floatVal)
      elif n1.isFloat and n2.isFloat:
        i.push newVal(n1.floatVal > n2.floatVal)
      elif n1.isFloat and n2.isInt:
        i.push newVal(n1.floatVal > n2.intVal.float)
    else:
        i.push newVal(n1.strVal > n2.strVal)
  
  def.symbol(">=") do (i: In):
    var n1, n2: MinValue
    i.reqTwoNumbersOrStrings n2, n1
    if n1.isNumber and n2.isNumber:
      if n1.isInt and n2.isInt:
        i.push newVal(n1.intVal >= n2.intVal)
      elif n1.isInt and n2.isFloat:
        i.push newVal(n1.intVal.float >= n2.floatVal)
      elif n1.isFloat and n2.isFloat:
        i.push newVal(n1.floatVal >= n2.floatVal)
      elif n1.isFloat and n2.isInt:
        i.push newVal(n1.floatVal >= n2.intVal.float)
    else:
        i.push newVal(n1.strVal >= n2.strVal)
  
  def.symbol("<") do (i: In):
    var n1, n2: MinValue
    i.reqTwoNumbersOrStrings n1, n2
    if n1.isNumber and n2.isNumber:
      if n1.isInt and n2.isInt:
        i.push newVal(n1.intVal > n2.intVal)
      elif n1.isInt and n2.isFloat:
        i.push newVal(n1.intVal.float > n2.floatVal)
      elif n1.isFloat and n2.isFloat:
        i.push newVal(n1.floatVal > n2.floatVal)
      elif n1.isFloat and n2.isInt:
        i.push newVal(n1.floatVal > n2.intVal.float)
    else:
        i.push newVal(n1.strVal > n2.strVal)
  
  def.symbol("<=") do (i: In):
    var n1, n2: MinValue
    i.reqTwoNumbersOrStrings n1, n2
    if n1.isNumber and n2.isNumber:
      if n1.isInt and n2.isInt:
        i.push newVal(n1.intVal >= n2.intVal)
      elif n1.isInt and n2.isFloat:
        i.push newVal(n1.intVal.float >= n2.floatVal)
      elif n1.isFloat and n2.isFloat:
        i.push newVal(n1.floatVal >= n2.floatVal)
      elif n1.isFloat and n2.isInt:
        i.push newVal(n1.floatVal >= n2.intVal.float)
    else:
        i.push newVal(n1.strVal >= n2.strVal)
  
  def.symbol("==") do (i: In):
    var n1, n2: MinValue
    i.reqTwoSimilarTypesNonSymbol n2, n1
    i.push newVal(n1 == n2)
  
  def.symbol("!=") do (i: In):
    var n1, n2: MinValue
    i.reqTwoSimilarTypesNonSymbol n2, n1
    i.push newVal(not (n1 == n2))
  
  # Boolean Logic
  
  def.symbol("not") do (i: In):
    let vals = i.expect("bool")
    let b = vals[0]
    i.push newVal(not b.boolVal)
  
  def.symbol("and") do (i: In):
    let vals = i.expect("bool", "bool")
    let a = vals[0]
    let b = vals[1]
    i.push newVal(a.boolVal and b.boolVal)
  
  def.symbol("or") do (i: In):
    let vals = i.expect("bool", "bool")
    let a = vals[0]
    let b = vals[1]
    i.push newVal(a.boolVal or b.boolVal)
  
  def.symbol("xor") do (i: In):
    let vals = i.expect("bool", "bool")
    let a = vals[0]
    let b = vals[1]
    i.push newVal(a.boolVal xor b.boolVal)
  
  def.symbol("string?") do (i: In):
    if i.peek.kind == minString:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.symbol("integer?") do (i: In):
    if i.peek.kind == minInt:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.symbol("float?") do (i: In):
    if i.peek.kind == minFloat:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.symbol("number?") do (i: In):
    if i.peek.kind == minFloat or i.peek.kind == minInt:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.symbol("boolean?") do (i: In):
    if i.peek.kind == minBool:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.symbol("quotation?") do (i: In):
    if i.peek.kind == minQuotation:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.symbol("dictionary?") do (i: In):
    if i.peek.isDictionary:
      i.push true.newVal
    else:
      i.push false.newVal
  
  def.finalize("logic")