FILE / ScuroNeko/Laniakea
tgfmt/mdv2.go
Исходный файл и его история в репозитории.
104 lines
3.3 KiB
Go
104 lines
3.3 KiB
Go
package tgfmt
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import (
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"strconv"
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"strings"
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)
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// MarkdownV2 is an escaped Telegram MarkdownV2 fragment.
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//
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// Methods on MarkdownV2 compose formatting without escaping the fragment again.
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type MarkdownV2 string
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// EscapeMarkdownV2 escapes special characters for Telegram MarkdownV2.
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// https://core.telegram.org/bots/api#markdownv2-style
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func EscapeMarkdownV2(s string) MarkdownV2 {
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symbols := []string{"\\", "_", "*", "[", "]", "(", ")", "~", "`", ">", "#", "+", "-", "=", "|", "{", "}", ".", "!"}
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for _, symbol := range symbols {
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s = strings.ReplaceAll(s, symbol, "\\"+symbol)
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}
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return MarkdownV2(s)
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}
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// Bold returns s wrapped as bold Telegram MarkdownV2 text.
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func (s MarkdownV2) Bold() MarkdownV2 {
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return "*" + s + "*"
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}
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// Italic returns s wrapped as italic Telegram MarkdownV2 text.
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func (s MarkdownV2) Italic() MarkdownV2 {
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return "_" + s + "_"
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}
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// Underline returns s wrapped as underlined Telegram MarkdownV2 text.
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func (s MarkdownV2) Underline() MarkdownV2 {
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return "__" + s + "__"
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}
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// Strikethrough returns s wrapped as strikethrough Telegram MarkdownV2 text.
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func (s MarkdownV2) Strikethrough() MarkdownV2 {
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return "~" + s + "~"
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}
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// Spoiler returns s wrapped as spoiler Telegram MarkdownV2 text.
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func (s MarkdownV2) Spoiler() MarkdownV2 {
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return "||" + s + "||"
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}
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// Link returns s as a Telegram MarkdownV2 text link.
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func (s MarkdownV2) Link(url string) MarkdownV2 {
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return "[" + s + "](" + escapeMarkdownV2LinkDestination(url) + ")"
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}
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// Mention returns s as a Telegram MarkdownV2 user mention.
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func (s MarkdownV2) Mention(userID uint64) MarkdownV2 {
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return "[" + s + "](tg://user?id=" + MarkdownV2(strconv.FormatUint(userID, 10)) + ")"
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}
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// Emoji returns s as a Telegram MarkdownV2 custom emoji.
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func (s MarkdownV2) Emoji(emojiID string) MarkdownV2 {
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return "[" + s + "](tg://emoji?id=" + escapeMarkdownV2LinkDestination(emojiID) + ")"
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}
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// Time returns s as a Telegram MarkdownV2 localized timestamp.
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func (s MarkdownV2) Time(unix uint64) MarkdownV2 {
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return "![" + s + "](tg://time?unix=" + MarkdownV2(strconv.FormatUint(unix, 10)) + ")"
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}
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// TimeFormat returns s as a Telegram MarkdownV2 localized timestamp with format.
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func (s MarkdownV2) TimeFormat(unix uint64, format string) MarkdownV2 {
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dest := "tg://time?unix=" + strconv.FormatUint(unix, 10) + "&format=" + format
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return "![" + s + "](" + escapeMarkdownV2LinkDestination(dest) + ")"
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}
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// InlineCode returns s wrapped as inline code Telegram MarkdownV2 text.
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func (s MarkdownV2) InlineCode() MarkdownV2 {
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return "`" + s + "`"
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}
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// BlockCode returns s wrapped as a Telegram MarkdownV2 code block.
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func (s MarkdownV2) BlockCode() MarkdownV2 {
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return "```\n" + s + "\n```"
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}
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// BlockCodeLanguage returns s wrapped as a Telegram MarkdownV2 code block with language.
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func (s MarkdownV2) BlockCodeLanguage(lang string) MarkdownV2 {
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return "```" + MarkdownV2(lang) + "\n" + s + "\n```"
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}
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// Quote returns s as a Telegram MarkdownV2 blockquote.
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func (s MarkdownV2) Quote() MarkdownV2 {
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return MarkdownV2(">" + strings.ReplaceAll(string(s), "\n", "\n>"))
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}
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// QuoteExpandable returns s as a Telegram MarkdownV2 expandable blockquote.
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func (s MarkdownV2) QuoteExpandable() MarkdownV2 {
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return "**>" + s
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}
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func escapeMarkdownV2LinkDestination(s string) MarkdownV2 {
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s = strings.ReplaceAll(s, "\\", "\\\\")
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s = strings.ReplaceAll(s, ")", "\\)")
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return MarkdownV2(s)
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}
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