diff options
Diffstat (limited to 'src/strgen/strgen.cpp')
| -rw-r--r-- | src/strgen/strgen.cpp | 117 |
1 files changed, 64 insertions, 53 deletions
diff --git a/src/strgen/strgen.cpp b/src/strgen/strgen.cpp index 397639783..c19613629 100644 --- a/src/strgen/strgen.cpp +++ b/src/strgen/strgen.cpp @@ -47,6 +47,7 @@ static int _cur_line; ///< The current line we're parsing static int _errors, _warnings, _show_todo; static const ptrdiff_t MAX_COMMAND_PARAM_SIZE = 100; ///< Maximum size of every command block, not counting the name of the command itself +static const CmdStruct *ParseCommandString(const char **str, char *param, int *argno, int *casei); /** Container for the different cases of a string. */ struct Case { @@ -137,7 +138,7 @@ struct StringData { * @param s The string to hash. * @return The hashed string. */ - uint HashStr(const char *s) + uint HashStr(const char *s) const { uint hash = 0; for (; *s != '\0'; s++) hash = ROL(hash, 3) ^ *s; @@ -175,10 +176,60 @@ struct StringData { } return NULL; } + + /** + * Create a compound hash. + * @param hash The hash to add the string hash to. + * @param s The string hash. + * @return The new hash. + */ + uint VersionHashStr(uint hash, const char *s) const + { + for (; *s != '\0'; s++) { + hash = ROL(hash, 3) ^ *s; + hash = (hash & 1 ? hash >> 1 ^ 0xDEADBEEF : hash >> 1); + } + return hash; + } + + /** + * Make a hash of the file to get a unique "version number" + * @return The version number. + */ + uint Version() const + { + uint hash = 0; + + for (size_t i = 0; i < this->max_strings; i++) { + const LangString *ls = this->strings[i]; + + if (ls != NULL) { + const CmdStruct *cs; + const char *s; + char buf[MAX_COMMAND_PARAM_SIZE]; + int argno; + int casei; + + s = ls->name; + hash ^= i * 0x717239; + hash = (hash & 1 ? hash >> 1 ^ 0xDEADBEEF : hash >> 1); + hash = this->VersionHashStr(hash, s + 1); + + s = ls->english; + while ((cs = ParseCommandString(&s, buf, &argno, &casei)) != NULL) { + if (cs->flags & C_DONTCOUNT) continue; + + hash ^= (cs - _cmd_structs) * 0x1234567; + hash = (hash & 1 ? hash >> 1 ^ 0xF00BAA4 : hash >> 1); + } + } + } + + return hash; + } }; static LanguagePackHeader _lang; ///< Header information about a language. -static uint32 _hash; static const char *_cur_ident; @@ -892,49 +943,6 @@ static void ParseFile(StringData &data, const char *file, bool english) } -static uint32 MyHashStr(uint32 hash, const char *s) -{ - for (; *s != '\0'; s++) { - hash = ROL(hash, 3) ^ *s; - hash = (hash & 1 ? hash >> 1 ^ 0xDEADBEEF : hash >> 1); - } - return hash; -} - - -/* make a hash of the file to get a unique "version number" */ -static void MakeHashOfStrings(const StringData &data) -{ - uint32 hash = 0; - - for (size_t i = 0; i < data.max_strings; i++) { - const LangString *ls = data.strings[i]; - - if (ls != NULL) { - const CmdStruct *cs; - const char *s; - char buf[MAX_COMMAND_PARAM_SIZE]; - int argno; - int casei; - - s = ls->name; - hash ^= i * 0x717239; - hash = (hash & 1 ? hash >> 1 ^ 0xDEADBEEF : hash >> 1); - hash = MyHashStr(hash, s + 1); - - s = ls->english; - while ((cs = ParseCommandString(&s, buf, &argno, &casei)) != NULL) { - if (cs->flags & C_DONTCOUNT) continue; - - hash ^= (cs - _cmd_structs) * 0x1234567; - hash = (hash & 1 ? hash >> 1 ^ 0xF00BAA4 : hash >> 1); - } - } - } - _hash = hash; -} - - static uint CountInUse(const StringData &data, uint grp) { int i; @@ -1020,13 +1028,17 @@ struct HeaderWriter { /** * Finalise writing the file. + * @param data The data about the string. */ - virtual void Finalise() = 0; + virtual void Finalise(const StringData &data) = 0; /** Especially destroy the subclasses. */ virtual ~HeaderWriter() {}; - /** Write the header information. */ + /** + * Write the header information. + * @param data The data about the string. + */ void WriteHeader(const StringData &data) { int last = 0; @@ -1066,7 +1078,7 @@ struct HeaderFileWriter : HeaderWriter, FileWriter { prev = stringid; } - void Finalise() + void Finalise(const StringData &data) { /* Find the plural form with the most amount of cases. */ int max_plural_forms = 0; @@ -1079,7 +1091,7 @@ struct HeaderFileWriter : HeaderWriter, FileWriter { "static const uint LANGUAGE_PACK_VERSION = 0x%X;\n" "static const uint LANGUAGE_MAX_PLURAL = %d;\n" "static const uint LANGUAGE_MAX_PLURAL_FORMS = %d;\n\n", - (uint)_hash, (uint)lengthof(_plural_forms), max_plural_forms + (uint)data.Version(), (uint)lengthof(_plural_forms), max_plural_forms ); fprintf(this->fh, "#endif /* TABLE_STRINGS_H */\n"); @@ -1217,6 +1229,7 @@ struct LanguageWriter { /** * Actually write the language. + * @param data The data about the string. */ void WriteLang(const StringData &data) { @@ -1234,7 +1247,7 @@ struct LanguageWriter { } _lang.ident = TO_LE32(LanguagePackHeader::IDENT); - _lang.version = TO_LE32(_hash); + _lang.version = TO_LE32(data.Version()); _lang.missing = TO_LE16(_lang.missing); _lang.winlangid = TO_LE16(_lang.winlangid); @@ -1515,7 +1528,6 @@ int CDECL main(int argc, char *argv[]) StringData data; /* parse master file */ ParseFile(data, pathbuf, true); - MakeHashOfStrings(data); if (_errors != 0) return 1; /* write strings.h */ @@ -1524,7 +1536,7 @@ int CDECL main(int argc, char *argv[]) HeaderFileWriter writer(pathbuf); writer.WriteHeader(data); - writer.Finalise(); + writer.Finalise(data); } else if (mgo.numleft == 1) { char *r; @@ -1533,7 +1545,6 @@ int CDECL main(int argc, char *argv[]) StringData data; /* parse master file and check if target file is correct */ ParseFile(data, pathbuf, true); - MakeHashOfStrings(data); ParseFile(data, replace_pathsep(mgo.argv[0]), false); // target file if (_errors != 0) return 1; |