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Habitica/src/test/java/com/habitrpg/android/habitica/helpers/MarkdownProcessingTest.kt
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package com.habitrpg.android.habitica.helpers | ||
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import io.kotest.core.spec.style.WordSpec | ||
import io.kotest.matchers.shouldBe | ||
import java.util.regex.Matcher | ||
import java.util.regex.Pattern | ||
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class MarkdownProcessingTest : WordSpec({ | ||
"processMarkdown" should { | ||
"replace image and link markdown correctly" { | ||
val input = "[Habitica Wiki](https://habitica.fandom.com/wiki/Habitica_Wiki) and ![img](https://habitica-assets.s3.amazonaws.com/mobileApp/images/gold.png\"Habitica Gold\")" | ||
val output = processMarkdown(input) | ||
output shouldBe "[Habitica Wiki](https://habitica.fandom.com/wiki/Habitica_Wiki) and ![img](https://habitica-assets.s3.amazonaws.com/mobileApp/images/gold.png \"Habitica Gold\")" | ||
} | ||
} | ||
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"preprocessImageMarkdown" should { | ||
"add space before title in png image" { | ||
val input = "![img](https://habitica-assets.s3.amazonaws.com/mobileApp/images/gold.png\"Habitica Gold\")" | ||
val output = preprocessImageMarkdown(input) | ||
output shouldBe "![img](https://habitica-assets.s3.amazonaws.com/mobileApp/images/gold.png \"Habitica Gold\")" | ||
} | ||
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"not modify non-image markdown" { | ||
val input = "[Habitica Wiki](https://habitica.fandom.com/wiki/Habitica_Wiki)" | ||
val output = preprocessImageMarkdown(input) | ||
output shouldBe "[Habitica Wiki](https://habitica.fandom.com/wiki/Habitica_Wiki)" | ||
} | ||
} | ||
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"preprocessMarkdownLinks" should { | ||
"sanitize link url" { | ||
val input = "[Habitica Wiki](https://habi tica.fandom.com/wiki/Habitica_Wiki)" | ||
val output = preprocessMarkdownLinks(input) | ||
output shouldBe "[Habitica Wiki](https://habitica.fandom.com/wiki/Habitica_Wiki)" | ||
} | ||
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"not modify non-link markdown" { | ||
val input = "![img](https://habitica-assets.s3.amazonaws.com/mobileApp/images/gold.png\"Habitica Gold\")" | ||
val output = preprocessMarkdownLinks(input) | ||
output shouldBe "![img](https://habitica-assets.s3.amazonaws.com/mobileApp/images/gold.png\"Habitica Gold\")" | ||
} | ||
} | ||
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}) { | ||
companion object { | ||
fun processMarkdown(input: String): String { | ||
var processedInput = preprocessMarkdownLinks(input) | ||
processedInput = preprocessImageMarkdown(processedInput) | ||
return processedInput | ||
} | ||
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fun preprocessImageMarkdown(markdown: String): String { | ||
val regex = Regex("""!\[.*?]\(.*?".*?"\)""") | ||
return markdown.replace(regex) { matchResult -> | ||
val match = matchResult.value | ||
if (match.contains(".png\"")) { | ||
match.replace(".png\"", ".png \"") | ||
} else { | ||
match | ||
} | ||
} | ||
} | ||
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fun preprocessMarkdownLinks(input: String): String { | ||
val linkPattern = "\\[([^\\]]+)\\]\\(([^\\)]+)\\)" | ||
val multilineLinkPattern = Pattern.compile(linkPattern, Pattern.DOTALL) | ||
val matcher = multilineLinkPattern.matcher(input) | ||
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val sb = StringBuffer(input.length) | ||
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while (matcher.find()) { | ||
val linkText = matcher.group(1) | ||
val url = matcher.group(2) | ||
val sanitizedUrl = url.replace(Regex("\\s"), "") | ||
val correctedLink = "[$linkText]($sanitizedUrl)" | ||
matcher.appendReplacement(sb, Matcher.quoteReplacement(correctedLink)) | ||
} | ||
matcher.appendTail(sb) | ||
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return sb.toString() | ||
} | ||
} | ||
} | ||
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