Merge pull request #387 from Morganamilo/news2

Print the descriptions of news item

parser.go

@@ -1,11 +1,13 @@
 package main
 
 import (
+	"bytes"
 	"fmt"
 	"io"
 	"os"
 	"strconv"
 	"strings"
+	"html"
 )
 
 // A basic set implementation for strings.
@@ -673,3 +675,66 @@ func parseNumberMenu(input string) (intRanges, intRanges, stringSet, stringSet)
 
 	return include, exclude, otherInclude, otherExclude
 }
+
+// Crude html parsing, good enough for the arch news
+// This is only displayed in the terminal so there should be no security
+// concerns
+func parseNews(str string) string {
+	var buffer bytes.Buffer
+	var tagBuffer bytes.Buffer
+	var escapeBuffer bytes.Buffer
+	inTag := false
+	inEscape := false
+
+	for _, char := range str {
+		if inTag {
+			if char == '>' {
+				inTag = false
+				switch tagBuffer.String() {
+				case "code":
+					buffer.WriteString(cyanCode)
+				case "/code":
+					buffer.WriteString(resetCode)
+				case "/p":
+					buffer.WriteRune('\n')
+				}
+
+				continue
+			}
+
+			tagBuffer.WriteRune(char)
+			continue
+		}
+
+		if inEscape {
+			if char == ';' {
+				inEscape = false
+				escapeBuffer.WriteRune(char)
+				s := html.UnescapeString(escapeBuffer.String())
+				buffer.WriteString(s)
+				continue
+			}
+
+			escapeBuffer.WriteRune(char)
+			continue
+		}
+
+		if char == '<' {
+			inTag = true
+			tagBuffer.Reset()
+			continue
+		}
+
+		if char == '&' {
+			inEscape = true
+			escapeBuffer.Reset()
+			escapeBuffer.WriteRune(char)
+			continue
+		}
+
+		buffer.WriteRune(char)
+	}
+
+	buffer.WriteString(resetCode)
+	return buffer.String()
+}

print.go

@@ -417,21 +417,45 @@ outer:
 	return nil
 }
 
+type Item struct {
+	Title       string `xml:"title"`
+	Link        string `xml:"link"`
+	Description string `xml:"description"`
+	PubDate     string `xml:"pubDate"`
+	Creator     string `xml:"dc:creator"`
+}
+
+func (item Item) Print() error {
+	date, err := time.Parse(time.RFC1123Z, item.PubDate)
+
+	if err != nil {
+		return err
+	}
+
+	fd := formatTime(int(date.Unix()))
+
+	fmt.Println(bold(magenta(fd)), bold(strings.TrimSpace(item.Title)))
+	//fmt.Println(strings.TrimSpace(item.Link))
+
+	if !cmdArgs.existsArg("q", "quiet") {
+		desc := strings.TrimSpace(parseNews(item.Description))
+		fmt.Println(desc)
+	}
+
+	return nil
+}
+
+type Channel struct {
+	Title         string `xml:"title"`
+	Link          string `xml:"link"`
+	Description   string `xml:"description"`
+	Language      string `xml:"language"`
+	Lastbuilddate string `xml:"lastbuilddate"`
+	Items         []Item `xml:"item"`
+}
+
 type rss struct {
-	Channel struct {
-		Title         string `xml:"title"`
-		Link          string `xml:"link"`
-		Description   string `xml:"description"`
-		Language      string `xml:"language"`
-		Lastbuilddate string `xml:"lastbuilddate"`
-		Item          []struct {
-			Title       string `xml:"title"`
-			Link        string `xml:"link"`
-			Description string `xml:"description"`
-			PubDate     string `xml:"pubDate"`
-			Creator     string `xml:"dc:creator"`
-		} `xml:"item"`
-	} `xml:"channel"`
+	Channel Channel `xml:"channel"`
 }
 
 func printNewsFeed() error {
@@ -454,16 +478,20 @@ func printNewsFeed() error {
 		return err
 	}
 
-	for _, item := range rss.Channel.Item {
-		date, err := time.Parse(time.RFC1123Z, item.PubDate)
-
-		if err != nil {
-			return err
+	if config.SortMode == BottomUp {
+		for i := len(rss.Channel.Items) - 1; i >= 0; i-- {
+			err := rss.Channel.Items[i].Print()
+			if err != nil {
+				return err
+			}
+		}
+	} else {
+		for i := 0; i < len(rss.Channel.Items); i++ {
+			err := rss.Channel.Items[i].Print()
+			if err != nil {
+				return err
+			}
 		}
-
-		fd := formatTime(int(date.Unix()))
-
-		fmt.Println(magenta(fd), strings.TrimSpace(item.Title))
 	}
 
 	return nil