Bootstrap and day 1 solution

utilities/parsing.go

@@ -0,0 +1,45 @@
+package utilities
+
+import (
+	"bufio"
+	"fmt"
+	"strconv"
+
+	"parnic.com/aoc2019/inputs"
+)
+
+func getData(filename string, lineHandler func(line string)) {
+	file, err := inputs.Sets.Open(fmt.Sprintf("%s.txt", filename))
+	// version that doesn't use embedded files:
+	// file, err := os.Open(fmt.Sprintf("inputs/%s.txt", filename))
+	if err != nil {
+		panic(err)
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	scanner.Split(bufio.ScanLines)
+	for scanner.Scan() {
+		lineHandler(scanner.Text())
+	}
+}
+
+func GetStringLines(filename string) []string {
+	retval := make([]string, 0)
+	getData(filename, func(line string) {
+		retval = append(retval, line)
+	})
+	return retval
+}
+
+func GetIntLines(filename string) []int64 {
+	retval := make([]int64, 0)
+	getData(filename, func(line string) {
+		val, err := strconv.ParseInt(line, 10, 64)
+		if err != nil {
+			panic(err)
+		}
+		retval = append(retval, val)
+	})
+	return retval
+}