perf: pre-compile regexes at package level
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0961f71b9c
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3bad51d9a7
1 changed files with 24 additions and 14 deletions
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@ -23,6 +23,19 @@ import (
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"github.com/sipeed/picoclaw/pkg/voice"
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)
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var (
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reHeading = regexp.MustCompile(`^#{1,6}\s+(.+)$`)
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reBlockquote = regexp.MustCompile(`^>\s*(.*)$`)
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reLink = regexp.MustCompile(`\[([^\]]+)\]\(([^)]+)\)`)
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reBoldStar = regexp.MustCompile(`\*\*(.+?)\*\*`)
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reBoldUnder = regexp.MustCompile(`__(.+?)__`)
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reItalic = regexp.MustCompile(`_([^_]+)_`)
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reStrike = regexp.MustCompile(`~~(.+?)~~`)
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reListItem = regexp.MustCompile(`^[-*]\s+`)
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reCodeBlock = regexp.MustCompile("```[\\w]*\\n?([\\s\\S]*?)```")
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reInlineCode = regexp.MustCompile("`([^`]+)`")
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)
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type TelegramChannel struct {
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*BaseChannel
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bot *telego.Bot
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@ -431,19 +444,18 @@ func markdownToTelegramHTML(text string) string {
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inlineCodes := extractInlineCodes(text)
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text = inlineCodes.text
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text = regexp.MustCompile(`^#{1,6}\s+(.+)$`).ReplaceAllString(text, "$1")
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text = reHeading.ReplaceAllString(text, "$1")
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text = regexp.MustCompile(`^>\s*(.*)$`).ReplaceAllString(text, "$1")
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text = reBlockquote.ReplaceAllString(text, "$1")
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text = escapeHTML(text)
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text = regexp.MustCompile(`\[([^\]]+)\]\(([^)]+)\)`).ReplaceAllString(text, `<a href="$2">$1</a>`)
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text = reLink.ReplaceAllString(text, `<a href="$2">$1</a>`)
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text = regexp.MustCompile(`\*\*(.+?)\*\*`).ReplaceAllString(text, "<b>$1</b>")
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text = reBoldStar.ReplaceAllString(text, "<b>$1</b>")
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text = regexp.MustCompile(`__(.+?)__`).ReplaceAllString(text, "<b>$1</b>")
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text = reBoldUnder.ReplaceAllString(text, "<b>$1</b>")
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reItalic := regexp.MustCompile(`_([^_]+)_`)
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text = reItalic.ReplaceAllStringFunc(text, func(s string) string {
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match := reItalic.FindStringSubmatch(s)
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if len(match) < 2 {
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@ -452,9 +464,9 @@ func markdownToTelegramHTML(text string) string {
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return "<i>" + match[1] + "</i>"
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})
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text = regexp.MustCompile(`~~(.+?)~~`).ReplaceAllString(text, "<s>$1</s>")
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text = reStrike.ReplaceAllString(text, "<s>$1</s>")
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text = regexp.MustCompile(`^[-*]\s+`).ReplaceAllString(text, "• ")
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text = reListItem.ReplaceAllString(text, "• ")
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for i, code := range inlineCodes.codes {
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escaped := escapeHTML(code)
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@ -479,8 +491,7 @@ type codeBlockMatch struct {
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}
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func extractCodeBlocks(text string) codeBlockMatch {
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re := regexp.MustCompile("```[\\w]*\\n?([\\s\\S]*?)```")
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matches := re.FindAllStringSubmatch(text, -1)
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matches := reCodeBlock.FindAllStringSubmatch(text, -1)
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codes := make([]string, 0, len(matches))
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for _, match := range matches {
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@ -488,7 +499,7 @@ func extractCodeBlocks(text string) codeBlockMatch {
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}
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i := 0
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text = re.ReplaceAllStringFunc(text, func(m string) string {
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text = reCodeBlock.ReplaceAllStringFunc(text, func(m string) string {
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placeholder := fmt.Sprintf("\x00CB%d\x00", i)
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i++
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return placeholder
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@ -503,8 +514,7 @@ type inlineCodeMatch struct {
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}
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func extractInlineCodes(text string) inlineCodeMatch {
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re := regexp.MustCompile("`([^`]+)`")
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matches := re.FindAllStringSubmatch(text, -1)
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matches := reInlineCode.FindAllStringSubmatch(text, -1)
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codes := make([]string, 0, len(matches))
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for _, match := range matches {
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@ -512,7 +522,7 @@ func extractInlineCodes(text string) inlineCodeMatch {
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}
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i := 0
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text = re.ReplaceAllStringFunc(text, func(m string) string {
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text = reInlineCode.ReplaceAllStringFunc(text, func(m string) string {
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placeholder := fmt.Sprintf("\x00IC%d\x00", i)
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i++
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return placeholder
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