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https://github.com/sipeed/picoclaw.git
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DimonB
c36b06a901
reItalic (_text_) ran after reLink converted [text](url) to <a href>, injecting <i> tags into URLs containing underscores (e.g. Google Flights URL-safe base64 in the tfs param). Telegram silently dropped such malformed <a> tags, causing only 1 of 3 links to appear in messages. Fix: extract markdown links into placeholders before any formatting runs, restore them as <a href> last — same pattern used for code blocks.
67 lines
1.9 KiB
Go
67 lines
1.9 KiB
Go
package telegram
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func Test_markdownToTelegramHTML(t *testing.T) {
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cases := []struct {
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name string
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input string
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expected string
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}{
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{
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name: "plain text",
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input: "hello world",
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expected: "hello world",
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},
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{
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name: "bold",
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input: "**bold text**",
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expected: "<b>bold text</b>",
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},
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{
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name: "italic",
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input: "_italic text_",
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expected: "<i>italic text</i>",
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},
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{
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name: "link without underscores in URL",
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input: "[click here](https://example.com/path)",
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expected: `<a href="https://example.com/path">click here</a>`,
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},
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{
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name: "link with underscores in URL is not corrupted by italic regex",
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// Google Flights URLs use URL-safe base64 with underscores in the tfs param.
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// Previously reItalic ran after reLink, matching _text_ inside href and injecting
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// <i> tags into the URL, which broke the link in Telegram.
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input: "[3 → 10 сентября — от $202](https://www.google.com/travel/flights/search?tfs=CBwQAho_EgoyURL_safe_base64)",
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expected: `<a href="https://www.google.com/travel/flights/search?tfs=CBwQAho_EgoyURL_safe_base64">3 → 10 сентября — от $202</a>`,
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},
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{
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name: "multiple links all survive",
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input: "[first](https://a.com/path_one) and [second](https://b.com/path_two_x)",
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expected: `<a href="https://a.com/path_one">first</a> and <a href="https://b.com/path_two_x">second</a>`,
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},
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{
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name: "link label with HTML special chars is escaped",
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input: "[a & b](https://example.com)",
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expected: `<a href="https://example.com">a & b</a>`,
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},
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{
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name: "HTML special chars in plain text are escaped",
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input: "a & b < c > d",
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expected: "a & b < c > d",
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},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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actual := markdownToTelegramHTML(tc.input)
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require.Equal(t, tc.expected, actual)
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})
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}
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}
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