AoC-Day1-broken.go

AoC-Day1-broken.go

package main

import (
	"encoding/csv"
	"os"
	//"strings"
	"regexp"
	"fmt"
	//"strings"
	//"strconv"
)

func check(e error) {
    if e != nil {
        panic(e)
    }
}

func main() {
	file, err := os.Open("input.txt")
    check(err)
    defer file.Close() 
    reader := csv.NewReader(file) 
    records, err := reader.ReadAll() 
	check(err)

	connector_re := regexp.MustCompile(`[^\.\d]+`)
	num_re := regexp.MustCompile(`\d+`)

	for i:=0; i<len(records); i++{
		record := records[i]

		//var r_connectors [][]int
		var r_numbers [][]int

		//r_connectors = connector_re.FindAllStringSubmatchIndex(record[0],-1)
		r_numbers = num_re.FindAllStringSubmatchIndex(record[0],-1)

		for _, num := range r_numbers{
			
			fmt.Println("record:",i,num)
			//Check for non-numbers in next line adjacent to current number
			nextLinePrevChar := []byte(records[1][num[0]-1])
			 fmt.Println("nextline previous char", nextLinePrevChar)
			if connector_re.Match(nextLinePrevChar) {
				fmt.Println("nextline previous char", nextLinePrevChar)
			}
			
		}

	}
}