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Merge remote-tracking branch 'twouters/feature/special-mention-date'
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tulir committed Mar 29, 2024
2 parents d693066 + 1918fc8 commit 80c21b2
Showing 1 changed file with 61 additions and 0 deletions.
61 changes: 61 additions & 0 deletions formatter.go
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,9 @@ package main
import (
"fmt"
"regexp"
"strconv"
"strings"
"time"

"github.com/slack-go/slack"
"github.com/yuin/goldmark"
Expand Down Expand Up @@ -181,6 +183,22 @@ func (n *astSlackURL) String() string {
}
}

type astSlackSpecialMention struct {
astSlackTag

content string
}

var slackSpecialMentionRegex = regexp.MustCompile(`<(#|@|!|)([^|>]+)(\|([^|>]*))?>`)

func (n *astSlackSpecialMention) String() string {
if n.label != "" {
return fmt.Sprintf("<!%s|%s>", n.content, n.label)
} else {
return fmt.Sprintf("<!%s>", n.content)
}
}

type slackTagParser struct{}

// Regex matching Slack docs at https://api.slack.com/reference/surfaces/formatting#retrieving-messages
Expand Down Expand Up @@ -211,6 +229,8 @@ func (s *slackTagParser) Parse(parent ast.Node, block text.Reader, pc parser.Con
return &astSlackUserMention{astSlackTag: tag, userID: content}
case "#":
return &astSlackChannelMention{astSlackTag: tag, channelID: content}
case "!":
return &astSlackSpecialMention{astSlackTag: tag, content: content}
case "":
return &astSlackURL{astSlackTag: tag, url: content}
default:
Expand Down Expand Up @@ -263,6 +283,47 @@ func (r *slackTagHTMLRenderer) renderSlackTag(w goldmarkUtil.BufWriter, source [
}
}
return
case *astSlackSpecialMention:
parts := strings.Split(node.content, "^")
switch parts[0] {
case "date":
timestamp, converr := strconv.ParseInt(parts[1], 10, 64)
if converr != nil {
return
}
t := time.Unix(timestamp, 0)

mapping := map[string]string{
"{date_num}": t.Local().Format("2006-01-02"),
"{date}": t.Local().Format("January 2, 2006"),
"{date_pretty}": t.Local().Format("January 2, 2006"),
"{date_short}": t.Local().Format("Jan 2, 2006"),
"{date_short_pretty}": t.Local().Format("Jan 2, 2006"),
"{date_long}": t.Local().Format("Monday, January 2, 2006"),
"{date_long_pretty}": t.Local().Format("Monday, January 2, 2006"),
"{time}": t.Local().Format("15:04 MST"),
"{time_secs}": t.Local().Format("15:04:05 MST"),
}

for k, v := range mapping {
parts[2] = strings.ReplaceAll(parts[2], k, v)
}

if len(parts) > 3 {
_, _ = fmt.Fprintf(w, `<a href="%s">%s</a>`, parts[3], parts[2])
} else {
_, _ = w.WriteString(parts[2])
}
return
case "channel", "everyone", "here":
// do @room mentions?
return
case "subteam":
// do subteam handling? more spaces?
return
default:
return
}
case *astSlackURL:
label := node.label
if label == "" {
Expand Down

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