HomeWork_1

2026-09-10 20:26:26 -04:00
parent dd7e213077
commit b0eff2bfd5
5 changed files with 71 additions and 5 deletions
@@ -0,0 +1,5 @@
+module letsgo/homework1
+
+go 1.27.0
+
+require golang.org/x/net v0.59.0 // indirect
@@ -0,0 +1,59 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"strings"
+
+	"golang.org/x/net/html"
+)
+
+var raw = `
+<!DOCTYPE html>
+<html lang="en">
+<body>
+  <div class="node1">
+    <img src="/images/node1.png" alt="node one image">
+    <p>First node first child</p>
+  </div>
+  <div class="node2">
+    <img src="/images/node2.png" alt="node two image">
+    <h1>Second node second child</h1>
+  </div>
+  <div class="node3">
+    <a href="https://example.com">Third node second child</a>
+  </div>
+</body>
+</html>
+	`
+
+func main() {
+	doc, err := html.Parse(bytes.NewReader([]byte(raw)))
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Parsing failed: %s\n", err)
+		os.Exit(-1)
+	}
+
+	words, images := counterofwordsandimages(doc)
+	fmt.Printf("There are %d words and %d images\n", words, images)
+}
+
+func counterofwordsandimages(doc *html.Node) (int, int) {
+	var words, images int
+
+	visit(doc, &words, &images)
+
+	return words, images
+}
+
+func visit(n *html.Node, words, images *int) {
+	if n.Type == html.TextNode {
+		*words += len(strings.Fields(n.Data))
+	} else if n.Type == html.ElementNode && n.Data == "img" {
+		*images++
+	}
+	for c := n.FirstChild; c != nil; c = c.NextSibling {
+		visit(c, words, images)
+	}
+}
@@ -3,6 +3,7 @@ go 1.27.0
 use (
 	./Composite_Types
 	./For_If_Switch
+	./Homework_1
 	./courses
 	./formatIO
 	./functions
@@ -0,0 +1,6 @@
+golang.org/x/crypto v0.57.0/go.mod h1:Fdz0i5U6CoizGwLda9DttjSk6qlZo25zYNtR+ycvuZA=
+golang.org/x/net v0.59.0 h1:5zfYln+w5XCxwrnMMJPufRgNoXEaGxl0wo5GqPXyues=
+golang.org/x/net v0.59.0/go.mod h1:2DA/G1UfVbCpQPeWTmMPGY7Cs2PkBkwu743bVX5PIVg=
+golang.org/x/sys v0.48.0/go.mod h1:hNLxWAXmnKAxqDtdwIYC4bM9oQPEecfsnNMuSxOs3og=
+golang.org/x/term v0.46.0/go.mod h1:+K02xbkittuwc0Am4abfA3Fc+XRGXkvBXNO88NCXPoc=
+golang.org/x/text v0.42.0/go.mod h1:ojzP1Z+2QtioaF8DTtO8K5q7JWVVYwZKenzujK0Zd0E=
@@ -17,11 +17,6 @@ func main() {

 	s = append(s, 1, 1)
 	fmt.Printf("%d, %d, %T, %5t, %#[3]v\n", len(s), cap(s), s, s == nil)
-	fmt.Println("*****************************")
-	fmt.Println("*****************************")
-	fmt.Println("*****************************")
-	fmt.Println("*****************************")
-	fmt.Println("*****************************")

 	a := [...]int{1, 2, 3}