fix bug after adding suffix code

f.go

@@ -9,7 +9,6 @@ import (
 	"math"
 	"os"
 	"sort"
-	"strconv"
 	"strings"
 )
 
@@ -89,7 +88,7 @@ const HELP_MSG = "  Operation | Variable assignment | Special\n" +
 	"    exit\n"
 const NORMAL90CONFIDENCE = 1.6448536269514727
 const INIT_DIST Scalar = Scalar(1)
-const N_SAMPLES = 100_000
+const N_SAMPLES = 1_000_000
 
 /* Printers */
 func prettyPrintDist(dist Dist) {
@@ -305,7 +304,7 @@ func parseWordsIntoOpAndDist(words []string, vars map[string]Dist) (string, Dist
 		return parseWordsErr("Operator must have operand; can't operate on nothing")
 	case 1:
 		var_word, var_word_exists := vars[words[0]]
-		single_float, err1 := strconv.ParseFloat(words[0], 64) // abstract this away to search for K/M/B/T/etc.
+		single_float, err1 := pretty.ParseFloat(words[0]) // abstract this away to search for K/M/B/T/etc.
 		switch {
 		case var_word_exists:
 			dist = var_word
@@ -315,16 +314,16 @@ func parseWordsIntoOpAndDist(words []string, vars map[string]Dist) (string, Dist
 			return parseWordsErr("Trying to operate on a scalar, but scalar is neither a float nor an assigned variable")
 		}
 	case 2:
-		new_low, err1 := strconv.ParseFloat(words[0], 64)
-		new_high, err2 := strconv.ParseFloat(words[1], 64)
+		new_low, err1 := pretty.ParseFloat(words[0])
+		new_high, err2 := pretty.ParseFloat(words[1])
 		if err1 != nil || err2 != nil {
 			return parseWordsErr("Trying to operate by a distribution, but distribution is not specified as two floats")
 		}
 		dist = Lognormal{low: new_low, high: new_high}
 	case 3:
 		if words[0] == "beta" || words[0] == "b" {
-			a, err1 := strconv.ParseFloat(words[1], 64)
-			b, err2 := strconv.ParseFloat(words[2], 64)
+			a, err1 := pretty.ParseFloat(words[1])
+			b, err2 := pretty.ParseFloat(words[2])
 			if err1 != nil || err2 != nil {
 				return parseWordsErr("Trying to specify a beta distribution? Try beta 1 2")
 			}

pretty/pretty.go

@@ -1,8 +1,10 @@
 package pretty
 
 import (
+	"errors"
 	"fmt"
 	"math"
+	"strconv"
 )
 
 func PrettyPrintInt(n int) {
@@ -49,3 +51,37 @@ func PrettyPrint2Floats(low float64, high float64) {
 	fmt.Printf(" ")
 	PrettyPrintFloat(high)
 }
+
+func multiplyOrPassThroughError(a float64, b float64, err error) (float64, error) {
+	if err != nil {
+		return b, err
+	} else {
+		return a * b, nil
+	}
+}
+
+func ParseFloat(word string) (float64, error) {
+	// l = len(word) // assuming no UTF stuff
+	switch len(word) {
+	case 0:
+		return 0, errors.New("String to be parsed into float must not be the empty string")
+	case 1:
+		return strconv.ParseFloat(word, 64)
+	}
+
+	n := len(word) - 1
+	f, err := strconv.ParseFloat(word[:n], 64)
+	switch word[n] {
+	case 'K':
+		return multiplyOrPassThroughError(1_000, f, err)
+	case 'M':
+		return multiplyOrPassThroughError(1_000_000, f, err)
+	case 'B':
+		return multiplyOrPassThroughError(1_000_000_000, f, err)
+	case 'T':
+		return multiplyOrPassThroughError(1_000_000_000_000, f, err)
+	default:
+		return strconv.ParseFloat(word, 64)
+	}
+
+}