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Update match_cashtags.

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This commit is contained in:
levlam 2021-08-03 02:58:12 +03:00
parent 0dc42e4410
commit 13d5854e2f
2 changed files with 17 additions and 6 deletions
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12
td/telegram/MessageEntity.cpp
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@ -384,7 +384,7 @@ static vector<Slice> match_cashtags(Slice str) {
const unsigned char *end = str.uend();
const unsigned char *ptr = begin;
// '/(?<=^|[^$\d_\pL\x{200c}])\$([A-Z]{3,8})(?![$\d_\pL\x{200c}])/u'
// '/(?<=^|[^$\d_\pL\x{200c}])\$(1INCH|[A-Z]{1,8})(?![$\d_\pL\x{200c}])/u'
UnicodeSimpleCategory category;
while (true) {
@ -404,12 +404,16 @@ static vector<Slice> match_cashtags(Slice str) {
}
auto cashtag_begin = ++ptr;
while (ptr != end && 'Z' >= *ptr && *ptr >= 'A') {
ptr++;
if (end - ptr >= 5 && Slice(ptr, ptr + 5) == Slice("1INCH")) {
ptr += 5;
} else {
while (ptr != end && 'Z' >= *ptr && *ptr >= 'A') {
ptr++;
}
}
auto cashtag_end = ptr;
auto cashtag_size = cashtag_end - cashtag_begin;
if (cashtag_size < 3 || cashtag_size > 8) {
if (cashtag_size < 1 || cashtag_size > 8) {
continue;
}

11
test/message_entities.cpp
View File

@ -137,8 +137,9 @@ TEST(MessageEntities, cashtag) {
check_cashtag("$ab", {});
check_cashtag("$abc", {});
check_cashtag("$", {});
check_cashtag("$A", {});
check_cashtag("$AB", {});
check_cashtag("$A", {"$A"});
check_cashtag("$AB", {"$AB"});
check_cashtag("$ABС", {});
check_cashtag("$АBC", {});
check_cashtag("$АВС", {});
check_cashtag("$ABC", {"$ABC"});
@ -160,6 +161,12 @@ TEST(MessageEntities, cashtag) {
check_cashtag(" А$ABC ", {});
check_cashtag("$ABC$DEF $GHI $KLM", {"$GHI", "$KLM"});
check_cashtag("$TEST", {"$TEST"});
check_cashtag("$1INC", {});
check_cashtag("$1INCH", {"$1INCH"});
check_cashtag("...$1INCH...", {"$1INCH"});
check_cashtag("$1inch", {});
check_cashtag("$1INCHA", {});
check_cashtag("$1INCHА", {});
check_cashtag(u8"$ABC\u2122", {"$ABC"});
check_cashtag(u8"\u2122$ABC", {"$ABC"});
check_cashtag(u8"\u2122$ABC\u2122", {"$ABC"});