[Feature] Add Strings::BeginsWith() and Strings::EndsWith() (#3471)

* [Strings] Add Strings::BeginsWith() and Strings::EndsWith()

# Notes
- These are useful so that we don't have to manually calculate size or perform a substring.

* Update questmgr.cpp

* Update client.cpp

common/strings.cpp

@@ -695,8 +695,31 @@ std::string Strings::ConvertToDigit(int n, const std::string& suffix)
 		return NUM_TO_ENGLISH_X[n] + suffix;
 	}
 }
+
+bool Strings::BeginsWith(const std::string& subject, const std::string& search)
+{
+	if (subject.length() < search.length()) {
+		return false;
+	}
+
+	return subject.starts_with(search);
+}
+
+bool Strings::EndsWith(const std::string& subject, const std::string& search)
+{
+	if (subject.length() < search.length()) {
+		return false;
+	}
+
+	return subject.ends_with(search);
+}
+
 bool Strings::Contains(const std::string& subject, const std::string& search)
 {
+	if (subject.length() < search.length()) {
+		return false;
+	}
+
 	return subject.find(search) != std::string::npos;
 }
 

common/strings.h

@@ -128,6 +128,8 @@ public:
 	static bool ToBool(const std::string& bool_string);
 	static inline bool EqualFold(const std::string &string_one, const std::string &string_two) { return strcasecmp(string_one.c_str(), string_two.c_str()) == 0; }
 	static std::string Random(size_t length);
+	static bool BeginsWith(const std::string& subject, const std::string& search);
+	static bool EndsWith(const std::string& subject, const std::string& search);
 
 	template<typename T>
 	static std::string

zone/client.cpp

@@ -5939,90 +5939,64 @@ void Client::AdventureFinish(bool win, int theme, int points)
 	FastQueuePacket(&outapp);
 }
 
-void Client::CheckLDoNHail(Mob *target)
+void Client::CheckLDoNHail(NPC* n)
 {
-	if(!zone->adv_data)
-	{
+	if (!zone->adv_data || !n || n->GetOwnerID()) {
 		return;
 	}
 
-	if(!target || !target->IsNPC())
-	{
+	auto* ds = (ServerZoneAdventureDataReply_Struct*) zone->adv_data;
+	if (ds->type != Adventure_Rescue || ds->data_id != n->GetNPCTypeID()) {
 		return;
 	}
 
-	if(target->GetOwnerID() != 0)
-	{
+	if (entity_list.CheckNPCsClose(n)) {
+		n->Say(
+			"You're here to save me? I couldn't possibly risk leaving yet. There are "
+			"far too many of those horrid things out there waiting to recapture me! Please get "
+			"rid of some more of those vermin and then we can try to leave."
+		);
 		return;
 	}
 
-	ServerZoneAdventureDataReply_Struct* ds = (ServerZoneAdventureDataReply_Struct*)zone->adv_data;
-	if(ds->type != Adventure_Rescue)
-	{
-		return;
-	}
-
-	if(ds->data_id != target->GetNPCTypeID())
-	{
-		return;
-	}
-
-	if(entity_list.CheckNPCsClose(target) != 0)
-	{
-		target->Say("You're here to save me? I couldn't possibly risk leaving yet. There are "
-			"far too many of those horrid things out there waiting to recapture me! Please get"
-			" rid of some more of those vermin and then we can try to leave.");
-		return;
-	}
-
-	Mob *pet = GetPet();
-	if(pet)
-	{
-		if(pet->GetPetType() == petCharmed)
-		{
+	auto pet = GetPet();
+	if (pet) {
+		if (pet->GetPetType() == petCharmed) {
 			pet->BuffFadeByEffect(SE_Charm);
-		}
-		else if(pet->GetPetType() == petNPCFollow)
-		{
+		} else if (pet->GetPetType() == petNPCFollow) {
 			pet->SetOwnerID(0);
-		}
-		else
-		{
+		} else {
 			pet->Depop();
 		}
 	}
 
-	SetPet(target);
-	target->SetOwnerID(GetID());
-	target->Say("Wonderful! Someone to set me free! I feared for my life for so long,"
-		" never knowing when they might choose to end my life. Now that you're here though"
-		" I can rest easy. Please help me find my way out of here as soon as you can"
-		" I'll stay close behind you!");
+	SetPet(n);
+	n->SetOwnerID(GetID());
+	n->Say(
+		"Wonderful! Someone to set me free! I feared for my life for so long, "
+		"never knowing when they might choose to end my life. Now that you're here though "
+		"I can rest easy. Please help me find my way out of here as soon as you can "
+		"I'll stay close behind you!"
+	);
 }
 
-void Client::CheckEmoteHail(Mob *target, const char* message)
+void Client::CheckEmoteHail(NPC* n, const char* message)
 {
-	if(
-		(message[0] != 'H'	&&
-		message[0] != 'h')	||
-		message[1] != 'a'	||
-		message[2] != 'i'	||
-		message[3] != 'l'){
+	if (
+		!Strings::BeginsWith(message, "hail") &&
+		!Strings::BeginsWith(message, "Hail")
+	) {
 		return;
 	}
 
-	if(!target || !target->IsNPC())
-	{
+	if (!n || n->GetOwnerID()) {
 		return;
 	}
 
-	if(target->GetOwnerID() != 0)
-	{
-		return;
+	const auto emote_id = n->GetEmoteID();
+	if (emote_id) {
+		n->DoNPCEmote(EQ::constants::EmoteEventTypes::Hailed, emote_id);
 	}
-	uint32 emoteid = target->GetEmoteID();
-	if(emoteid != 0)
-		target->CastToNPC()->DoNPCEmote(EQ::constants::EmoteEventTypes::Hailed, emoteid);
 }
 
 void Client::MarkSingleCompassLoc(float in_x, float in_y, float in_z, uint8 count)

zone/client.h

@@ -1360,8 +1360,8 @@ public:
 	uint32 GetLDoNLossesTheme(uint32 t);
 	uint32 GetLDoNPointsTheme(uint32 t);
 	void UpdateLDoNWinLoss(uint32 theme_id, bool win = false, bool remove = false);
-	void CheckLDoNHail(Mob *target);
-	void CheckEmoteHail(Mob *target, const char* message);
+	void CheckLDoNHail(NPC* n);
+	void CheckEmoteHail(NPC* n, const char* message);
 
 	void HandleLDoNOpen(NPC *target);
 	void HandleLDoNSenseTraps(NPC *target, uint16 skill, uint8 type);

zone/client_packet.cpp

@@ -9147,8 +9147,14 @@ void Client::Handle_OP_ItemVerifyRequest(const EQApplicationPacket *app)
 		}
 		else if (inst->IsClassCommon())
 		{
-			if (!RuleB(Skills, RequireTomeHandin) && item->ItemType == EQ::item::ItemTypeSpell && (strstr((const char*)item->Name, "Tome of ") || strstr((const char*)item->Name, "Skill: ")))
-			{
+			if (
+				!RuleB(Skills, RequireTomeHandin) &&
+				item->ItemType == EQ::item::ItemTypeSpell &&
+				(
+					Strings::BeginsWith(item->Name, "Tome of ") ||
+					Strings::BeginsWith(item->Name, "Skill: ")
+				)
+			) {
 				DeleteItemInInventory(slot_id, 1, true);
 				TrainDiscipline(item->ID);
 			}

zone/effects.cpp

@@ -622,8 +622,8 @@ bool Client::TrainDiscipline(uint32 itemid) {
 	const std::string item_name = item->Name;
 
 	if (
-		item_name.substr(0, 5) != std::string("Tome ") &&
-		item_name.substr(0, 7) != std::string("Skill: ")
+		!Strings::BeginsWith(item_name, "Tome of ") &&
+		!Strings::BeginsWith(item_name, "Skill: ")
 	) {
 		Message(Chat::Red, "This item is not a tome.");
 		//summon them the item back...
@@ -709,8 +709,8 @@ bool Client::MemorizeSpellFromItem(uint32 item_id) {
 	const std::string item_name = item->Name;
 
 	if (
-		item_name.substr(0, 7) != std::string("Spell: ") &&
-		item_name.substr(0, 6) != std::string("Song: ")
+		!Strings::BeginsWith(item_name, "Spell: ") &&
+		!Strings::BeginsWith(item_name, "Song: ")
 	) {
 		Message(Chat::Red, "This item is not a scroll.");
 		SummonItem(item_id);

zone/questmgr.cpp

@@ -1018,8 +1018,8 @@ bool QuestManager::isdisctome(uint32 item_id) {
 	const std::string item_name = item->Name;
 
 	if (
-		strcmp(item_name.substr(0, 5).c_str(), "Tome ") &&
-		strcmp(item_name.substr(0, 7).c_str(), "Skill: ")
+		!Strings::BeginsWith(item_name, "Tome of ") &&
+		!Strings::BeginsWith(item_name, "Skill: ")
 	) {
 		return false;
 	}