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added test for html entity numbers to regular expression

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added a few common html entities and entity numbers
This commit is contained in:
David Kaspar 2024-04-23 17:16:53 +02:00
parent 6600a49564
commit c0aea75c16
1 changed files with 12 additions and 3 deletions
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15
commons/src/main/java/com/vitorpamplona/amethyst/commons/preview/MetaTagsParser.kt
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@ -130,7 +130,7 @@ object MetaTagsParser {
// - commonly used character references in attribute values are resolved
private class Attrs {
companion object {
val RE_CHAR_REF = Regex("""&(\w+)(;?)""")
val RE_CHAR_REF = Regex("""&(#?)(\w+)(;?)""")
val BASE_CHAR_REFS =
mapOf(
"amp" to "&",
@ -148,16 +148,25 @@ object MetaTagsParser {
"equals" to "=",
"grave" to "`",
"DiacriticalGrave" to "`",
"039" to "'",
"8217" to "’",
"8216" to "‘",
"39" to "'",
"ldquo" to "“",
"rdquo" to "”",
"mdash" to "—",
"hellip" to "…",
"x27" to "'",
)
fun replaceCharRefs(match: MatchResult): String {
val bcr = BASE_CHAR_REFS[match.groupValues[1]]
val bcr = BASE_CHAR_REFS[match.groupValues[2]]
if (bcr != null) {
return bcr
}
// non-base char refs must be terminated by ';'
if (match.groupValues[2].isNotEmpty()) {
val cr = CHAR_REFS[match.groupValues[1]]
val cr = CHAR_REFS[match.groupValues[2]]
if (cr != null) {
return cr
}