use ParseIntList from common package

2023/day-5/almanac.go

@@ -2,9 +2,9 @@ package main
 
 import (
 	"fmt"
-	"strconv"
 	"strings"
-	"unicode"
+
+	"codeflow.dananglin.me.uk/apollo/advent-of-code/internal/common"
 )
 
 const (
@@ -61,42 +61,16 @@ func parseSeedNums(seedStr string) ([]int, error) {
 
 	seedStr = seedStr[strings.Index(seedStr, ":")+1:]
 
-	seeds := []int{}
-	seedNum := ""
-
-	addSeed := func(digit string) error {
-		value, err := strconv.Atoi(digit)
-		if err != nil {
-			return fmt.Errorf("unable to convert %q to int; %w", digit, err)
-		}
-		seeds = append(seeds, value)
-		return nil
-	}
-
-	for ind, s := range seedStr {
-		if unicode.IsDigit(s) {
-			seedNum = seedNum + string(s)
-			if ind == len(seedStr)-1 {
-				if err := addSeed(seedNum); err != nil {
-					return nil, fmt.Errorf("unable to add %q to seeds; %w", seedNum, err)
-				}
-			}
-		} else {
-			if len(seedNum) > 0 {
-				if err := addSeed(seedNum); err != nil {
-					return nil, fmt.Errorf("unable to add %q to seeds; %w", seedNum, err)
-				}
-			}
-
-			seedNum = ""
-		}
+	seeds, err := common.ParseIntList(seedStr)
+	if err != nil {
+		return nil, fmt.Errorf("unable to parse the seed numbers from %q; %w", seedStr, err)
 	}
 
 	return seeds, nil
 }
 
 func parseMap(mapLines []string) (map[int]int, error) {
-	var mapMatrix [][]int
+	//var mapMatrix [][]int
 
 	return nil, nil
 }