# HG changeset patch
# User glx22 <glx@openttd.org>
# Date 2023-02-17 23:52:22
# Node ID c3c7be10b12c4c40096e106224ce4e733f3a8238
# Parent  47542c1501d39c0a1cf66098e368bbb8440c748a

Change: [Script] Extract params info from GS strings

diff --git a/src/game/game_text.cpp b/src/game/game_text.cpp
--- a/src/game/game_text.cpp
+++ b/src/game/game_text.cpp
@@ -19,6 +19,7 @@
 #include "game_info.hpp"
 
 #include "table/strings.h"
+#include "table/strgen_tables.h"
 
 #include <stdarg.h>
 #include <memory>
@@ -273,6 +274,31 @@ GameStrings *LoadTranslations()
 	}
 }
 
+static StringParam::ParamType GetParamType(const CmdStruct *cs)
+{
+	if (cs->value == SCC_RAW_STRING_POINTER) return StringParam::RAW_STRING;
+	if (cs->value == SCC_STRING || cs != TranslateCmdForCompare(cs)) return StringParam::STRING;
+	return StringParam::OTHER;
+}
+
+static void ExtractStringParams(const StringData &data, StringParamsList &params)
+{
+	for (size_t i = 0; i < data.max_strings; i++) {
+		const LangString *ls = data.strings[i];
+
+		if (ls != nullptr) {
+			StringParams &param = params.emplace_back();
+			ParsedCommandStruct pcs;
+			ExtractCommandString(&pcs, ls->english, false);
+
+			for (const CmdStruct *cs : pcs.cmd) {
+				if (cs == nullptr) break;
+				param.emplace_back(GetParamType(cs), cs->consumes);
+			}
+		}
+	}
+}
+
 /** Compile the language. */
 void GameStrings::Compile()
 {
@@ -283,6 +309,8 @@ void GameStrings::Compile()
 
 	this->version = data.Version();
 
+	ExtractStringParams(data, this->string_params);
+
 	StringNameWriter id_writer(this->string_names);
 	id_writer.WriteHeader(data);
 
@@ -313,6 +341,20 @@ const char *GetGameStringPtr(uint id)
 }
 
 /**
+ * Get the string parameters of a particular game string.
+ * @param id The ID of the game string.
+ * @return The string parameters.
+ */
+const StringParams &GetGameStringParams(uint id)
+{
+	/* An empty result for STR_UNDEFINED. */
+	static StringParams empty;
+
+	if (id >= _current_data->string_params.size()) return empty;
+	return _current_data->string_params[id];
+}
+
+/**
  * Register the current translation to the Squirrel engine.
  * @param engine The engine to update/
  */
diff --git a/src/game/game_text.hpp b/src/game/game_text.hpp
--- a/src/game/game_text.hpp
+++ b/src/game/game_text.hpp
@@ -12,7 +12,23 @@
 
 #include "../core/smallvec_type.hpp"
 
+struct StringParam {
+	enum ParamType {
+		RAW_STRING,
+		STRING,
+		OTHER
+	};
+
+	ParamType type;
+	uint8 consumes;
+
+	StringParam(ParamType type, uint8 consumes) : type(type), consumes(consumes) {}
+};
+using StringParams = std::vector<StringParam>;
+using StringParamsList = std::vector<StringParams>;
+
 const char *GetGameStringPtr(uint id);
+const StringParams &GetGameStringParams(uint id);
 void RegisterGameTranslation(class Squirrel *engine);
 void ReconsiderGameScriptLanguage();
 
@@ -37,6 +53,7 @@ struct GameStrings {
 	std::vector<LanguageStrings> raw_strings;      ///< The raw strings per language, first must be English/the master language!.
 	std::vector<LanguageStrings> compiled_strings; ///< The compiled strings per language, first must be English/the master language!.
 	StringList string_names;                       ///< The names of the compiled strings.
+	StringParamsList string_params;                ///< The parameters for the strings.
 
 	void Compile();
 
diff --git a/src/strgen/strgen.h b/src/strgen/strgen.h
--- a/src/strgen/strgen.h
+++ b/src/strgen/strgen.h
@@ -136,6 +136,22 @@ struct LanguageWriter {
 	virtual void WriteLang(const StringData &data);
 };
 
+struct CmdStruct;
+
+struct CmdPair {
+	const CmdStruct *a;
+	const char *v;
+};
+
+struct ParsedCommandStruct {
+	uint np;
+	CmdPair pairs[32];
+	const CmdStruct *cmd[32]; // ordered by param #
+};
+
+const CmdStruct *TranslateCmdForCompare(const CmdStruct *a);
+void ExtractCommandString(ParsedCommandStruct *p, const char *s, bool warnings);
+
 void CDECL strgen_warning(const char *s, ...) WARN_FORMAT(1, 2);
 void CDECL strgen_error(const char *s, ...) WARN_FORMAT(1, 2);
 void NORETURN CDECL strgen_fatal(const char *s, ...) WARN_FORMAT(1, 2);
diff --git a/src/strgen/strgen_base.cpp b/src/strgen/strgen_base.cpp
--- a/src/strgen/strgen_base.cpp
+++ b/src/strgen/strgen_base.cpp
@@ -217,17 +217,6 @@ uint StringData::CountInUse(uint tab) co
 
 static const char *_cur_ident;
 
-struct CmdPair {
-	const CmdStruct *a;
-	const char *v;
-};
-
-struct ParsedCommandStruct {
-	uint np;
-	CmdPair pairs[32];
-	const CmdStruct *cmd[32]; // ordered by param #
-};
-
 /* Used when generating some advanced commands. */
 static ParsedCommandStruct _cur_pcs;
 static int _cur_argidx;
@@ -594,7 +583,7 @@ StringReader::~StringReader()
 	free(file);
 }
 
-static void ExtractCommandString(ParsedCommandStruct *p, const char *s, bool warnings)
+void ExtractCommandString(ParsedCommandStruct *p, const char *s, bool warnings)
 {
 	char param[MAX_COMMAND_PARAM_SIZE];
 	int argno;
@@ -628,7 +617,7 @@ static void ExtractCommandString(ParsedC
 }
 
 
-static const CmdStruct *TranslateCmdForCompare(const CmdStruct *a)
+const CmdStruct *TranslateCmdForCompare(const CmdStruct *a)
 {
 	if (a == nullptr) return nullptr;