osnovno iskanje

.gitignore

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+*grep2electricbogaloo*

go.mod

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+module git.govekar.net/grep2electricbogaloo
+
+go 1.25.5

main.go

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+package main
+
+import (
+	"bufio"
+	"os"
+)
+
+func matchEngine(pattern string, line string) {
+	// sliding window approach for simple full pattern matching
+	for i := 0; i < len(line)-len(pattern); i++ {
+		slice := line[i : i+len(pattern)]
+		if slice == pattern {
+			println(line)
+		}
+	}
+}
+
+func processReader(src string, r *os.File, pattern string) {
+	scanner := bufio.NewScanner(r)
+	line := 0
+	for scanner.Scan() {
+		line++
+		text := scanner.Text()
+		matchEngine(pattern, text)
+	}
+}
+
+func main() {
+	pattern := os.Args[1]
+	processReader("stdin", os.Stdin, pattern)
+}