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fix: case with ~

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This commit is contained in:
Aleksandr Bortnikov 2026-03-10 18:38:08 +03:00
parent f4b46246eb
commit 83a831e193
2 changed files with 13 additions and 5 deletions
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13
pkg/channels/telegram/parse_markdown_to_md_v2.go
View file

@ -1,6 +1,8 @@
package telegram package telegram
import "strings" import (
"strings"
)
// markdownToTelegramMarkdownV2 takes a standardized markdown string and // markdownToTelegramMarkdownV2 takes a standardized markdown string and
// strictly escapes or transforms it to fit Telegram's MarkdownV2 requirements. // strictly escapes or transforms it to fit Telegram's MarkdownV2 requirements.
@ -8,6 +10,7 @@ import "strings"
func markdownToTelegramMarkdownV2(text string) string { func markdownToTelegramMarkdownV2(text string) string {
// replace Heading to bolding // replace Heading to bolding
text = reHeading.ReplaceAllString(text, "*$1*") text = reHeading.ReplaceAllString(text, "*$1*")
text = reBoldStar.ReplaceAllString(text, "*$1*")
var result strings.Builder var result strings.Builder
runes := []rune(text) runes := []rune(text)
@ -69,7 +72,7 @@ func markdownToTelegramMarkdownV2(text string) string {
// and we are currently on '('. To keep logic linear, we handle it as we traverse. // and we are currently on '('. To keep logic linear, we handle it as we traverse.
// NOTE: A true deep-parser would link `[` to `](...)`. For safety, whenever we see `(`, // NOTE: A true deep-parser would link `[` to `](...)`. For safety, whenever we see `(`,
// if it looks like a URL part, we escape it via URL rules. Let's do a basic lookbehind. // if it looks like a URL part, we escape it via URL rules. Let's do a basic lookbehind.
if runes[i] == '(' && i > 0 && runes[i-1] == ']' { if i != 0 && runes[i] == '(' && i > 0 && runes[i-1] == ']' {
result.WriteRune('(') result.WriteRune('(')
i++ i++
for i < length { for i < length {
@ -90,14 +93,14 @@ func markdownToTelegramMarkdownV2(text string) string {
} }
// 4. Handle blockquotes starts // 4. Handle blockquotes starts
if runes[i] == '>' && (i == 0 || runes[i-1] == '\n') { if i != 0 && runes[i] == '>' && (i == 0 || runes[i-1] == '\n') {
result.WriteRune('>') result.WriteRune('>')
i++ i++
continue continue
} }
// 5. Handle expandable block quotation starts // 5. Handle expandable block quotation starts
if runes[i] == '>' && runes[i-1] == '*' && runes[i-2] == '*' && (i == 0 || runes[i-3] == '\n') { if i+3 < length && runes[i] == '>' && runes[i-1] == '*' && runes[i-2] == '*' && (i == 0 || runes[i-3] == '\n') {
result.WriteRune(runes[i]) result.WriteRune(runes[i])
i++ i++
continue continue
@ -123,7 +126,7 @@ func markdownToTelegramMarkdownV2(text string) string {
} }
// Standard single-char boundaries // Standard single-char boundaries
if runes[i] == '*' || runes[i] == '_' || runes[i] == '~' || runes[i] == '[' || runes[i] == ']' { if runes[i] == '*' || runes[i] == '_' || runes[i] == '[' || runes[i] == ']' {
result.WriteRune(runes[i]) result.WriteRune(runes[i])
i++ i++
continue continue

5
pkg/channels/telegram/parse_markdown_to_md_v2_test.go
View file

@ -46,6 +46,11 @@ func Test_markdownToTelegramMarkdownV2(t *testing.T) {
input: "o", input: "o",
expected: "o", expected: "o",
}, },
{
name: "",
input: "~10",
expected: "\\~10",
},
} }
for _, tc := range cases { for _, tc := range cases {