From fa45b822bb8cdcd3fb3654ee099bdeddd2290a5c Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Mon, 28 Jul 2008 22:12:28 +0000
Subject: label protection

---
 src/auxiliary/functions.cc | 22 ++++++++++++++++++++++
 src/auxiliary/functions.h  |  6 ++++++
 src/game/game.cc           | 24 ++++++++++++++++--------
 3 files changed, 44 insertions(+), 8 deletions(-)

diff --git a/src/auxiliary/functions.cc b/src/auxiliary/functions.cc
index dbfc799..a6187af 100644
--- a/src/auxiliary/functions.cc
+++ b/src/auxiliary/functions.cc
@@ -143,4 +143,26 @@ void trim(std::string &text)
 	}
 }
 
+void to_label(std::string &text)
+{
+	trim(text);
+	size_t pos = 0;
+
+	while (pos < text.size()) {
+		if ((text[pos] == ' ') || (text[pos] == '-')) {
+			text[pos] = '_';
+			pos++;
+		} else if ((text[pos] >= 'A') && (text[pos] <= 'Z')) {
+			text[pos] = text[pos] + 'a' - 'A';
+			pos++;
+		} else if ((text[pos] >= 'a') && (text[pos] <= 'z')) {
+			pos++;
+		} else if ((text[pos] >= '0') && (text[pos] <= '9')) {
+			pos++;
+		} else {
+			text.erase(pos, 1);
+		}
+	}
+}
+
 }
diff --git a/src/auxiliary/functions.h b/src/auxiliary/functions.h
index 557ab45..65b6a2b 100644
--- a/src/auxiliary/functions.h
+++ b/src/auxiliary/functions.h
@@ -55,6 +55,12 @@ const std::string text_strip_lowercase(const std::string &text);
 /// trim leading ad trailing spaces from a string
 void trim(std::string &text);
 
+/// convert a string to a valid label string
+/** trim leading and trealing spaces, convert remaining spaces to underscores, and make lowercase
+ * remove any non-alphanumeric character
+ */
+void to_label(std::string &text);
+
 }
 
 #endif // __INCLUDED_AUX_FUNCTIONS_H__
diff --git a/src/game/game.cc b/src/game/game.cc
index 5a937ca..e5b13d2 100644
--- a/src/game/game.cc
+++ b/src/game/game.cc
@@ -268,8 +268,7 @@ bool Game::load_world()
 
 		} else if (worldini.section().compare("world") == 0 ) {
 			if (worldini.got_key_string("zone", label)) {
-				aux::trim(label);
-				aux::to_lowercase(label);
+				aux::to_label(label);
 				zone = new core::Zone(label);
 				core::Zone::add(zone);
 			}
@@ -347,9 +346,11 @@ bool Game::load_zone(core::Zone *zone)
 					con_warn << zoneini.name() << " unknown key '" << zoneini.key() << "' at line " << zoneini.line() << std::endl;
 				}
 			} else if (zoneini.section().compare("star") == 0) {
-				if (zoneini.got_key_string("label", star->entity_label))
+				if (zoneini.got_key_string("label", strval)) {
+					aux::to_label(strval);
+					star->entity_label.assign(strval);
 					continue;
-				else if (zoneini.got_key_string("name", star->entity_name))
+				 } else if (zoneini.got_key_string("name", star->entity_name))
 					continue;
 				else if (zoneini.got_key_vector3f("location", star->entity_location ))
 					continue;
@@ -361,9 +362,11 @@ bool Game::load_zone(core::Zone *zone)
 					con_warn << zoneini.name() << " unknown key '" << zoneini.key() << "' at line " << zoneini.line() << std::endl;
 
 			} else if (zoneini.section().compare("planet") == 0) {
-				if (zoneini.got_key_string("label", planet->entity_label))
+				if (zoneini.got_key_string("label", strval)) {
+					aux::to_label(strval);
+					planet->entity_label.assign(strval);
 					continue;
-				else if (zoneini.got_key_string("name", planet->entity_name))
+				} else if (zoneini.got_key_string("name", planet->entity_name))
 					continue;
 				else if (zoneini.got_key_string("texture", planet->entity_texture))
 					 continue;
@@ -391,7 +394,9 @@ bool Game::load_zone(core::Zone *zone)
 						con_warn << zoneini.name() << " unknown shape '" << shapename << "' at line " << zoneini.line() << std::endl;
 					}
 					continue;
-				} else if (zoneini.got_key_string("label", entity->entity_label)) {
+				} else if (zoneini.got_key_string("label", strval)) {
+					aux::to_label(strval);
+					entity->entity_label.assign(strval);		
 					continue;
 				} else if (zoneini.got_key_string("name", entity->entity_name)) {
 					continue;
@@ -464,12 +469,15 @@ bool Game::load_ships()
 	}
 
 	ShipModel *shipmodel = 0;
+	std::string label;
 	bool b;
 
 	while (shipsini.getline()) {
 		if (shipsini.got_key()) {
 			if (shipsini.section().compare("ship") == 0) {
-				if (shipsini.got_key_string("label", shipmodel->shipmodel_label)) {
+				if (shipsini.got_key_string("label", label)) {
+					aux::to_label(label);
+					shipmodel->shipmodel_label.assign(label);
 					ShipModel::add(shipmodel);
 					continue;
 				} else if (shipsini.got_key_string("name",shipmodel->shipmodel_name)) {
-- 
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