# strgen.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "../stdafx.h"
    00013 #include "../core/endian_func.hpp"
    00014 #include "../string_func.h"
    00015 #include "../strings_type.h"
    00016 #include "../language.h"
    00017 #include "../table/control_codes.h"
    00018
    00019 #include <stdarg.h>
    00020
    00021 #if (!defined(WIN32) && !defined(WIN64)) || defined(__CYGWIN__)
    00022 #include <unistd.h>
    00023 #include <sys/stat.h>
    00024 #endif
    00025
    00026 #if defined WIN32 || defined __WATCOMC__
    00027 #include <direct.h>
    00028 #endif /* WIN32 || __WATCOMC__ */
    00029
    00030 #ifdef __MORPHOS__
    00031 #ifdef stderr
    00032 #undef stderr
    00033 #endif
    00034 #define stderr stdout
    00035 #endif /* __MORPHOS__ */
    00036
    00037 #include "../table/strgen_tables.h"
    00038
    00039 /* Compiles a list of strings into a compiled string list */
    00040
    00041 struct Case {
    00042   int caseidx;
    00043   char *string;
    00044   Case *next;
    00045 };
    00046
    00047 static bool _masterlang;
    00048 static bool _translated;
    00049 static bool _translation;
    00050 static const char *_file = "(unknown file)";
    00051 static FILE *_output_file = NULL;
    00052 static const char *_output_filename = NULL;
    00053 static int _cur_line;
    00054 static int _errors, _warnings, _show_todo;
    00055
    00056 static const ptrdiff_t MAX_COMMAND_PARAM_SIZE = 100;
    00057
    00058 struct LangString {
    00059   char *name;            // Name of the string
    00060   char *english;         // English text
    00061   char *translated;      // Translated text
    00062   uint16 hash_next;      // next hash entry
    00063   uint16 index;
    00064   int line;              // line of string in source-file
    00065   Case *translated_case; // cases for foreign
    00066 };
    00067
    00068 static LangString *_strings[65536];
    00069 static LanguagePackHeader _lang;
    00070
    00071
    00072 #define HASH_SIZE 32767
    00073 static uint16 _hash_head[HASH_SIZE];
    00074
    00075 static byte _put_buf[4096];
    00076 static uint _put_pos;
    00077 static int _next_string_id;
    00078
    00079 static uint32 _hash;
    00080
    00081 static const char *_cur_ident;
    00082
    00083 struct CmdPair {
    00084   const CmdStruct *a;
    00085   const char *v;
    00086 };
    00087
    00088 struct ParsedCommandStruct {
    00089   uint np;
    00090   CmdPair pairs[32];
    00091   const CmdStruct *cmd[32]; // ordered by param #
    00092 };
    00093
    00094 /* Used when generating some advanced commands. */
    00095 static ParsedCommandStruct _cur_pcs;
    00096 static int _cur_argidx;
    00097
    00098 static uint HashStr(const char *s)
    00099 {
    00100   uint hash = 0;
    00101   for (; *s != '\0'; s++) hash = ROL(hash, 3) ^ *s;
    00102   return hash % HASH_SIZE;
    00103 }
    00104
    00105 static void HashAdd(const char *s, LangString *ls)
    00106 {
    00107   uint hash = HashStr(s);
    00108   ls->hash_next = _hash_head[hash];
    00109   _hash_head[hash] = ls->index + 1;
    00110 }
    00111
    00112 static LangString *HashFind(const char *s)
    00113 {
    00114   int idx = _hash_head[HashStr(s)];
    00115
    00116   while (--idx >= 0) {
    00117     LangString *ls = _strings[idx];
    00118
    00119     if (strcmp(ls->name, s) == 0) return ls;
    00120     idx = ls->hash_next;
    00121   }
    00122   return NULL;
    00123 }
    00124
    00125 #ifdef _MSC_VER
    00126 # define LINE_NUM_FMT(s) "%s (%d): warning: %s (" s ")\n"
    00127 #else
    00128 # define LINE_NUM_FMT(s) "%s:%d: " s ": %s\n"
    00129 #endif
    00130
    00131 static void CDECL strgen_warning(const char *s, ...) WARN_FORMAT(1, 2);
    00132
    00133 static void CDECL strgen_warning(const char *s, ...)
    00134 {
    00135   char buf[1024];
    00136   va_list va;
    00137   va_start(va, s);
    00138   vsnprintf(buf, lengthof(buf), s, va);
    00139   va_end(va);
    00140   fprintf(stderr, LINE_NUM_FMT("warning"), _file, _cur_line, buf);
    00141   _warnings++;
    00142 }
    00143
    00144 static void CDECL strgen_error(const char *s, ...) WARN_FORMAT(1, 2);
    00145
    00146 static void CDECL strgen_error(const char *s, ...)
    00147 {
    00148   char buf[1024];
    00149   va_list va;
    00150   va_start(va, s);
    00151   vsnprintf(buf, lengthof(buf), s, va);
    00152   va_end(va);
    00153   fprintf(stderr, LINE_NUM_FMT("error"), _file, _cur_line, buf);
    00154   _errors++;
    00155 }
    00156
    00157 void NORETURN CDECL error(const char *s, ...)
    00158 {
    00159   char buf[1024];
    00160   va_list va;
    00161   va_start(va, s);
    00162   vsnprintf(buf, lengthof(buf), s, va);
    00163   va_end(va);
    00164   fprintf(stderr, LINE_NUM_FMT("FATAL"), _file, _cur_line, buf);
    00165 #ifdef _MSC_VER
    00166   fprintf(stderr, LINE_NUM_FMT("warning"), _file, _cur_line, "language is not compiled");
    00167 #endif
    00168   /* We were writing output to a file, remove it. */
    00169   if (_output_file != NULL) {
    00170     fclose(_output_file);
    00171     unlink(_output_filename);
    00172   }
    00173   exit(1);
    00174 }
    00175
    00176 static void PutByte(byte c)
    00177 {
    00178   if (_put_pos >= lengthof(_put_buf)) error("Put buffer too small");
    00179   _put_buf[_put_pos++] = c;
    00180 }
    00181
    00182
    00183 static void PutUtf8(uint32 value)
    00184 {
    00185   if (value < 0x80) {
    00186     PutByte(value);
    00187   } else if (value < 0x800) {
    00188     PutByte(0xC0 + GB(value,  6, 5));
    00189     PutByte(0x80 + GB(value,  0, 6));
    00190   } else if (value < 0x10000) {
    00191     PutByte(0xE0 + GB(value, 12, 4));
    00192     PutByte(0x80 + GB(value,  6, 6));
    00193     PutByte(0x80 + GB(value,  0, 6));
    00194   } else if (value < 0x110000) {
    00195     PutByte(0xF0 + GB(value, 18, 3));
    00196     PutByte(0x80 + GB(value, 12, 6));
    00197     PutByte(0x80 + GB(value,  6, 6));
    00198     PutByte(0x80 + GB(value,  0, 6));
    00199   } else {
    00200     strgen_warning("Invalid unicode value U+0x%X", value);
    00201   }
    00202 }
    00203
    00204
    00205 size_t Utf8Validate(const char *s)
    00206 {
    00207   uint32 c;
    00208
    00209   if (!HasBit(s[0], 7)) {
    00210     /* 1 byte */
    00211     return 1;
    00212   } else if (GB(s[0], 5, 3) == 6 && IsUtf8Part(s[1])) {
    00213     /* 2 bytes */
    00214     c = GB(s[0], 0, 5) << 6 | GB(s[1], 0, 6);
    00215     if (c >= 0x80) return 2;
    00216   } else if (GB(s[0], 4, 4) == 14 && IsUtf8Part(s[1]) && IsUtf8Part(s[2])) {
    00217     /* 3 bytes */
    00218     c = GB(s[0], 0, 4) << 12 | GB(s[1], 0, 6) << 6 | GB(s[2], 0, 6);
    00219     if (c >= 0x800) return 3;
    00220   } else if (GB(s[0], 3, 5) == 30 && IsUtf8Part(s[1]) && IsUtf8Part(s[2]) && IsUtf8Part(s[3])) {
    00221     /* 4 bytes */
    00222     c = GB(s[0], 0, 3) << 18 | GB(s[1], 0, 6) << 12 | GB(s[2], 0, 6) << 6 | GB(s[3], 0, 6);
    00223     if (c >= 0x10000 && c <= 0x10FFFF) return 4;
    00224   }
    00225
    00226   return 0;
    00227 }
    00228
    00229
    00230 static void EmitSingleChar(char *buf, int value)
    00231 {
    00232   if (*buf != '\0') strgen_warning("Ignoring trailing letters in command");
    00233   PutUtf8(value);
    00234 }
    00235
    00236
    00237 /* The plural specifier looks like
    00238  * {NUM} {PLURAL -1 passenger passengers} then it picks either passenger/passengers depending on the count in NUM */
    00239
    00240 /* This is encoded like
    00241  *  CommandByte <ARG#> <NUM> {Length of each string} {each string} */
    00242
    00243 bool ParseRelNum(char **buf, int *value, int *offset)
    00244 {
    00245   const char *s = *buf;
    00246   char *end;
    00247   bool rel = false;
    00248
    00249   while (*s == ' ' || *s == '\t') s++;
    00250   if (*s == '+') {
    00251     rel = true;
    00252     s++;
    00253   }
    00254   int v = strtol(s, &end, 0);
    00255   if (end == s) return false;
    00256   if (rel || v < 0) {
    00257     *value += v;
    00258   } else {
    00259     *value = v;
    00260   }
    00261   if (offset != NULL && *end == ':') {
    00262     /* Take the Nth within */
    00263     s = end + 1;
    00264     *offset = strtol(s, &end, 0);
    00265     if (end == s) return false;
    00266   }
    00267   *buf = end;
    00268   return true;
    00269 }
    00270
    00271 /* Parse out the next word, or NULL */
    00272 char *ParseWord(char **buf)
    00273 {
    00274   char *s = *buf, *r;
    00275
    00276   while (*s == ' ' || *s == '\t') s++;
    00277   if (*s == '\0') return NULL;
    00278
    00279   if (*s == '"') {
    00280     r = ++s;
    00281     /* parse until next " or NUL */
    00282     for (;;) {
    00283       if (*s == '\0') break;
    00284       if (*s == '"') {
    00285         *s++ = '\0';
    00286         break;
    00287       }
    00288       s++;
    00289     }
    00290   } else {
    00291     /* proceed until whitespace or NUL */
    00292     r = s;
    00293     for (;;) {
    00294       if (*s == '\0') break;
    00295       if (*s == ' ' || *s == '\t') {
    00296         *s++ = '\0';
    00297         break;
    00298       }
    00299       s++;
    00300     }
    00301   }
    00302   *buf = s;
    00303   return r;
    00304 }
    00305
    00306 /* Forward declaration */
    00307 static int TranslateArgumentIdx(int arg, int offset = 0);
    00308
    00309 static void EmitWordList(const char * const *words, uint nw)
    00310 {
    00311   PutByte(nw);
    00312   for (uint i = 0; i < nw; i++) PutByte(strlen(words[i]) + 1);
    00313   for (uint i = 0; i < nw; i++) {
    00314     for (uint j = 0; words[i][j] != '\0'; j++) PutByte(words[i][j]);
    00315     PutByte(0);
    00316   }
    00317 }
    00318
    00319 static void EmitPlural(char *buf, int value)
    00320 {
    00321   int argidx = _cur_argidx;
    00322   int offset = 0;
    00323   const char *words[5];
    00324   int nw = 0;
    00325
    00326   /* Parse out the number, if one exists. Otherwise default to prev arg. */
    00327   if (!ParseRelNum(&buf, &argidx, &offset)) argidx--;
    00328
    00329   /* Parse each string */
    00330   for (nw = 0; nw < 5; nw++) {
    00331     words[nw] = ParseWord(&buf);
    00332     if (words[nw] == NULL) break;
    00333   }
    00334
    00335   if (nw == 0) {
    00336     error("%s: No plural words", _cur_ident);
    00337   }
    00338
    00339   if (_plural_forms[_lang.plural_form].plural_count != nw) {
    00340     if (_translated) {
    00341       error("%s: Invalid number of plural forms. Expecting %d, found %d.", _cur_ident,
    00342         _plural_forms[_lang.plural_form].plural_count, nw);
    00343     } else {
    00344       if ((_show_todo & 2) != 0) strgen_warning("'%s' is untranslated. Tweaking english string to allow compilation for plural forms", _cur_ident);
    00345       if (nw > _plural_forms[_lang.plural_form].plural_count) {
    00346         nw = _plural_forms[_lang.plural_form].plural_count;
    00347       } else {
    00348         for (; nw < _plural_forms[_lang.plural_form].plural_count; nw++) {
    00349           words[nw] = words[nw - 1];
    00350         }
    00351       }
    00352     }
    00353   }
    00354
    00355   PutUtf8(SCC_PLURAL_LIST);
    00356   PutByte(_lang.plural_form);
    00357   PutByte(TranslateArgumentIdx(argidx, offset));
    00358   EmitWordList(words, nw);
    00359 }
    00360
    00361
    00362 static void EmitGender(char *buf, int value)
    00363 {
    00364   int argidx = _cur_argidx;
    00365   int offset = 0;
    00366   uint nw;
    00367
    00368   if (buf[0] == '=') {
    00369     buf++;
    00370
    00371     /* This is a {G=DER} command */
    00372     nw = _lang.GetGenderIndex(buf);
    00373     if (nw >= MAX_NUM_GENDERS) error("G argument '%s' invalid", buf);
    00374
    00375     /* now nw contains the gender index */
    00376     PutUtf8(SCC_GENDER_INDEX);
    00377     PutByte(nw);
    00378   } else {
    00379     const char *words[MAX_NUM_GENDERS];
    00380
    00381     /* This is a {G 0 foo bar two} command.
    00382      * If no relative number exists, default to +0 */
    00383     if (!ParseRelNum(&buf, &argidx, &offset)) {}
    00384
    00385     const CmdStruct *cmd = _cur_pcs.cmd[argidx];
    00386     if (cmd == NULL || (cmd->flags & C_GENDER) == 0) {
    00387       error("Command '%s' can't have a gender", cmd == NULL ? "<empty>" : cmd->cmd);
    00388     }
    00389
    00390     for (nw = 0; nw < MAX_NUM_GENDERS; nw++) {
    00391       words[nw] = ParseWord(&buf);
    00392       if (words[nw] == NULL) break;
    00393     }
    00394     if (nw != _lang.num_genders) error("Bad # of arguments for gender command");
    00395
    00396     assert(IsInsideBS(cmd->value, SCC_CONTROL_START, UINT8_MAX));
    00397     PutUtf8(SCC_GENDER_LIST);
    00398     PutByte(TranslateArgumentIdx(argidx, offset));
    00399     EmitWordList(words, nw);
    00400   }
    00401 }
    00402
    00403 static const CmdStruct *FindCmd(const char *s, int len)
    00404 {
    00405   for (const CmdStruct *cs = _cmd_structs; cs != endof(_cmd_structs); cs++) {
    00406     if (strncmp(cs->cmd, s, len) == 0 && cs->cmd[len] == '\0') return cs;
    00407   }
    00408   return NULL;
    00409 }
    00410
    00411 static uint ResolveCaseName(const char *str, uint len)
    00412 {
    00413   /* First get a clean copy of only the case name, then resolve it. */
    00414   char case_str[CASE_GENDER_LEN];
    00415   len = min(lengthof(case_str) - 1, len);
    00416   memcpy(case_str, str, len);
    00417   case_str[len] = '\0';
    00418
    00419   uint8 case_idx = _lang.GetCaseIndex(case_str);
    00420   if (case_idx >= MAX_NUM_CASES) error("Invalid case-name '%s'", case_str);
    00421   return case_idx + 1;
    00422 }
    00423
    00424
    00425 /* returns NULL on eof
    00426  * else returns command struct */
    00427 static const CmdStruct *ParseCommandString(const char **str, char *param, int *argno, int *casei)
    00428 {
    00429   const char *s = *str, *start;
    00430   char c;
    00431
    00432   *argno = -1;
    00433   *casei = -1;
    00434
    00435   /* Scan to the next command, exit if there's no next command. */
    00436   for (; *s != '{'; s++) {
    00437     if (*s == '\0') return NULL;
    00438   }
    00439   s++; // Skip past the {
    00440
    00441   if (*s >= '0' && *s <= '9') {
    00442     char *end;
    00443
    00444     *argno = strtoul(s, &end, 0);
    00445     if (*end != ':') error("missing arg #");
    00446     s = end + 1;
    00447   }
    00448
    00449   /* parse command name */
    00450   start = s;
    00451   do {
    00452     c = *s++;
    00453   } while (c != '}' && c != ' ' && c != '=' && c != '.' && c != 0);
    00454
    00455   const CmdStruct *cmd = FindCmd(start, s - start - 1);
    00456   if (cmd == NULL) {
    00457     strgen_error("Undefined command '%.*s'", (int)(s - start - 1), start);
    00458     return NULL;
    00459   }
    00460
    00461   if (c == '.') {
    00462     const char *casep = s;
    00463
    00464     if (!(cmd->flags & C_CASE)) {
    00465       error("Command '%s' can't have a case", cmd->cmd);
    00466     }
    00467
    00468     do {
    00469       c = *s++;
    00470     } while (c != '}' && c != ' ' && c != '\0');
    00471     *casei = ResolveCaseName(casep, s - casep - 1);
    00472   }
    00473
    00474   if (c == '\0') {
    00475     strgen_error("Missing } from command '%s'", start);
    00476     return NULL;
    00477   }
    00478
    00479
    00480   if (c != '}') {
    00481     if (c == '=') s--;
    00482     /* copy params */
    00483     start = s;
    00484     for (;;) {
    00485       c = *s++;
    00486       if (c == '}') break;
    00487       if (c == '\0') {
    00488         strgen_error("Missing } from command '%s'", start);
    00489         return NULL;
    00490       }
    00491       if (s - start == MAX_COMMAND_PARAM_SIZE) error("param command too long");
    00492       *param++ = c;
    00493     }
    00494   }
    00495   *param = '\0';
    00496
    00497   *str = s;
    00498
    00499   return cmd;
    00500 }
    00501
    00502
    00503 static void HandlePragma(char *str, bool master)
    00504 {
    00505   if (!memcmp(str, "id ", 3)) {
    00506     _next_string_id = strtoul(str + 3, NULL, 0);
    00507   } else if (!memcmp(str, "name ", 5)) {
    00508     strecpy(_lang.name, str + 5, lastof(_lang.name));
    00509   } else if (!memcmp(str, "ownname ", 8)) {
    00510     strecpy(_lang.own_name, str + 8, lastof(_lang.own_name));
    00511   } else if (!memcmp(str, "isocode ", 8)) {
    00512     strecpy(_lang.isocode, str + 8, lastof(_lang.isocode));
    00513   } else if (!memcmp(str, "plural ", 7)) {
    00514     _lang.plural_form = atoi(str + 7);
    00515     if (_lang.plural_form >= lengthof(_plural_forms)) {
    00516       error("Invalid pluralform %d", _lang.plural_form);
    00517     }
    00518   } else if (!memcmp(str, "textdir ", 8)) {
    00519     if (!memcmp(str + 8, "ltr", 3)) {
    00520       _lang.text_dir = TD_LTR;
    00521     } else if (!memcmp(str + 8, "rtl", 3)) {
    00522       _lang.text_dir = TD_RTL;
    00523     } else {
    00524       error("Invalid textdir %s", str + 8);
    00525     }
    00526   } else if (!memcmp(str, "digitsep ", 9)) {
    00527     str += 9;
    00528     strecpy(_lang.digit_group_separator, strcmp(str, "{NBSP}") == 0 ? NBSP : str, lastof(_lang.digit_group_separator));
    00529   } else if (!memcmp(str, "digitsepcur ", 12)) {
    00530     str += 12;
    00531     strecpy(_lang.digit_group_separator_currency, strcmp(str, "{NBSP}") == 0 ? NBSP : str, lastof(_lang.digit_group_separator_currency));
    00532   } else if (!memcmp(str, "decimalsep ", 11)) {
    00533     str += 11;
    00534     strecpy(_lang.digit_decimal_separator, strcmp(str, "{NBSP}") == 0 ? NBSP : str, lastof(_lang.digit_decimal_separator));
    00535   } else if (!memcmp(str, "winlangid ", 10)) {
    00536     const char *buf = str + 10;
    00537     long langid = strtol(buf, NULL, 16);
    00538     if (langid > (long)UINT16_MAX || langid < 0) {
    00539       error("Invalid winlangid %s", buf);
    00540     }
    00541     _lang.winlangid = (uint16)langid;
    00542   } else if (!memcmp(str, "grflangid ", 10)) {
    00543     const char *buf = str + 10;
    00544     long langid = strtol(buf, NULL, 16);
    00545     if (langid >= 0x7F || langid < 0) {
    00546       error("Invalid grflangid %s", buf);
    00547     }
    00548     _lang.newgrflangid = (uint8)langid;
    00549   } else if (!memcmp(str, "gender ", 7)) {
    00550     if (master) error("Genders are not allowed in the base translation.");
    00551     char *buf = str + 7;
    00552
    00553     for (;;) {
    00554       const char *s = ParseWord(&buf);
    00555
    00556       if (s == NULL) break;
    00557       if (_lang.num_genders >= MAX_NUM_GENDERS) error("Too many genders, max %d", MAX_NUM_GENDERS);
    00558       strecpy(_lang.genders[_lang.num_genders], s, lastof(_lang.genders[_lang.num_genders]));
    00559       _lang.num_genders++;
    00560     }
    00561   } else if (!memcmp(str, "case ", 5)) {
    00562     if (master) error("Cases are not allowed in the base translation.");
    00563     char *buf = str + 5;
    00564
    00565     for (;;) {
    00566       const char *s = ParseWord(&buf);
    00567
    00568       if (s == NULL) break;
    00569       if (_lang.num_cases >= MAX_NUM_CASES) error("Too many cases, max %d", MAX_NUM_CASES);
    00570       strecpy(_lang.cases[_lang.num_cases], s, lastof(_lang.cases[_lang.num_cases]));
    00571       _lang.num_cases++;
    00572     }
    00573   } else {
    00574     error("unknown pragma '%s'", str);
    00575   }
    00576 }
    00577
    00578 static void ExtractCommandString(ParsedCommandStruct *p, const char *s, bool warnings)
    00579 {
    00580   char param[MAX_COMMAND_PARAM_SIZE];
    00581   int argno;
    00582   int argidx = 0;
    00583   int casei;
    00584
    00585   memset(p, 0, sizeof(*p));
    00586
    00587   for (;;) {
    00588     /* read until next command from a. */
    00589     const CmdStruct *ar = ParseCommandString(&s, param, &argno, &casei);
    00590
    00591     if (ar == NULL) break;
    00592
    00593     /* Sanity checking */
    00594     if (argno != -1 && ar->consumes == 0) error("Non consumer param can't have a paramindex");
    00595
    00596     if (ar->consumes) {
    00597       if (argno != -1) argidx = argno;
    00598       if (argidx < 0 || (uint)argidx >= lengthof(p->cmd)) error("invalid param idx %d", argidx);
    00599       if (p->cmd[argidx] != NULL && p->cmd[argidx] != ar) error("duplicate param idx %d", argidx);
    00600
    00601       p->cmd[argidx++] = ar;
    00602     } else if (!(ar->flags & C_DONTCOUNT)) { // Ignore some of them
    00603       if (p->np >= lengthof(p->pairs)) error("too many commands in string, max " PRINTF_SIZE, lengthof(p->pairs));
    00604       p->pairs[p->np].a = ar;
    00605       p->pairs[p->np].v = param[0] != '\0' ? strdup(param) : "";
    00606       p->np++;
    00607     }
    00608   }
    00609 }
    00610
    00611
    00612 static const CmdStruct *TranslateCmdForCompare(const CmdStruct *a)
    00613 {
    00614   if (a == NULL) return NULL;
    00615
    00616   if (strcmp(a->cmd, "STRING1") == 0 ||
    00617       strcmp(a->cmd, "STRING2") == 0 ||
    00618       strcmp(a->cmd, "STRING3") == 0 ||
    00619       strcmp(a->cmd, "STRING4") == 0 ||
    00620       strcmp(a->cmd, "STRING5") == 0 ||
    00621       strcmp(a->cmd, "RAW_STRING") == 0) {
    00622     return FindCmd("STRING", 6);
    00623   }
    00624
    00625   return a;
    00626 }
    00627
    00628
    00629 static bool CheckCommandsMatch(char *a, char *b, const char *name)
    00630 {
    00631   /* If we're not translating, i.e. we're compiling the base language,
    00632    * it is pointless to do all these checks as it'll always be correct.
    00633    * After all, all checks are based on the base language.
    00634    */
    00635   if (!_translation) return true;
    00636
    00637   ParsedCommandStruct templ;
    00638   ParsedCommandStruct lang;
    00639   bool result = true;
    00640
    00641   ExtractCommandString(&templ, b, true);
    00642   ExtractCommandString(&lang, a, true);
    00643
    00644   /* For each string in templ, see if we find it in lang */
    00645   if (templ.np != lang.np) {
    00646     strgen_warning("%s: template string and language string have a different # of commands", name);
    00647     result = false;
    00648   }
    00649
    00650   for (uint i = 0; i < templ.np; i++) {
    00651     /* see if we find it in lang, and zero it out */
    00652     bool found = false;
    00653     for (uint j = 0; j < lang.np; j++) {
    00654       if (templ.pairs[i].a == lang.pairs[j].a &&
    00655           strcmp(templ.pairs[i].v, lang.pairs[j].v) == 0) {
    00656         /* it was found in both. zero it out from lang so we don't find it again */
    00657         lang.pairs[j].a = NULL;
    00658         found = true;
    00659         break;
    00660       }
    00661     }
    00662
    00663     if (!found) {
    00664       strgen_warning("%s: command '%s' exists in template file but not in language file", name, templ.pairs[i].a->cmd);
    00665       result = false;
    00666     }
    00667   }
    00668
    00669   /* if we reach here, all non consumer commands match up.
    00670    * Check if the non consumer commands match up also. */
    00671   for (uint i = 0; i < lengthof(templ.cmd); i++) {
    00672     if (TranslateCmdForCompare(templ.cmd[i]) != lang.cmd[i]) {
    00673       strgen_warning("%s: Param idx #%d '%s' doesn't match with template command '%s'", name, i,
    00674         lang.cmd[i]  == NULL ? "<empty>" : TranslateCmdForCompare(lang.cmd[i])->cmd,
    00675         templ.cmd[i] == NULL ? "<empty>" : templ.cmd[i]->cmd);
    00676       result = false;
    00677     }
    00678   }
    00679
    00680   return result;
    00681 }
    00682
    00683 static void HandleString(char *str, bool master)
    00684 {
    00685   if (*str == '#') {
    00686     if (str[1] == '#' && str[2] != '#') HandlePragma(str + 2, master);
    00687     return;
    00688   }
    00689
    00690   /* Ignore comments & blank lines */
    00691   if (*str == ';' || *str == ' ' || *str == '\0') return;
    00692
    00693   char *s = strchr(str, ':');
    00694   if (s == NULL) {
    00695     strgen_error("Line has no ':' delimiter");
    00696     return;
    00697   }
    00698
    00699   char *t;
    00700   /* Trim spaces.
    00701    * After this str points to the command name, and s points to the command contents */
    00702   for (t = s; t > str && (t[-1] == ' ' || t[-1] == '\t'); t--) {}
    00703   *t = 0;
    00704   s++;
    00705
    00706   /* Check string is valid UTF-8 */
    00707   const char *tmp;
    00708   for (tmp = s; *tmp != '\0';) {
    00709     size_t len = Utf8Validate(tmp);
    00710     if (len == 0) error("Invalid UTF-8 sequence in '%s'", s);
    00711
    00712     WChar c;
    00713     Utf8Decode(&c, tmp);
    00714     if (c <= 0x001F || // ASCII control character range
    00715         (c >= 0xE000 && c <= 0xF8FF) || // Private range
    00716         (c >= 0xFFF0 && c <= 0xFFFF)) { // Specials range
    00717       error("Unwanted UTF-8 character U+%04X in sequence '%s'", c, s);
    00718     }
    00719
    00720     tmp += len;
    00721   }
    00722
    00723   /* Check if the string has a case..
    00724    * The syntax for cases is IDENTNAME.case */
    00725   char *casep = strchr(str, '.');
    00726   if (casep) *casep++ = '\0';
    00727
    00728   /* Check if this string already exists.. */
    00729   LangString *ent = HashFind(str);
    00730
    00731   if (master) {
    00732     if (casep != NULL) {
    00733       strgen_error("Cases in the base translation are not supported.");
    00734       return;
    00735     }
    00736
    00737     if (ent != NULL) {
    00738       strgen_error("String name '%s' is used multiple times", str);
    00739       return;
    00740     }
    00741
    00742     if (_strings[_next_string_id]) {
    00743       strgen_error("String ID 0x%X for '%s' already in use by '%s'", _next_string_id, str, _strings[_next_string_id]->name);
    00744       return;
    00745     }
    00746
    00747     /* Allocate a new LangString */
    00748     ent = CallocT<LangString>(1);
    00749     _strings[_next_string_id] = ent;
    00750     ent->index = _next_string_id++;
    00751     ent->name = strdup(str);
    00752     ent->line = _cur_line;
    00753
    00754     HashAdd(str, ent);
    00755
    00756     ent->english = strdup(s);
    00757   } else {
    00758     if (ent == NULL) {
    00759       strgen_warning("String name '%s' does not exist in master file", str);
    00760       return;
    00761     }
    00762
    00763     if (ent->translated && casep == NULL) {
    00764       strgen_error("String name '%s' is used multiple times", str);
    00765       return;
    00766     }
    00767
    00768     /* make sure that the commands match */
    00769     if (!CheckCommandsMatch(s, ent->english, str)) return;
    00770
    00771     if (casep != NULL) {
    00772       Case *c = MallocT<Case>(1);
    00773
    00774       c->caseidx = ResolveCaseName(casep, strlen(casep));
    00775       c->string = strdup(s);
    00776       c->next = ent->translated_case;
    00777       ent->translated_case = c;
    00778     } else {
    00779       ent->translated = strdup(s);
    00780       /* If the string was translated, use the line from the
    00781        * translated language so errors in the translated file
    00782        * are properly referenced to. */
    00783       ent->line = _cur_line;
    00784     }
    00785   }
    00786 }
    00787
    00788
    00789 static void rstrip(char *buf)
    00790 {
    00791   int i = strlen(buf);
    00792   while (i > 0 && (buf[i - 1] == '\r' || buf[i - 1] == '\n' || buf[i - 1] == ' ')) i--;
    00793   buf[i] = '\0';
    00794 }
    00795
    00796
    00797 static void ParseFile(const char *file, bool english)
    00798 {
    00799   FILE *in;
    00800   char buf[2048];
    00801
    00802   /* Only look at the final filename to determine whether it's the base language or not */
    00803   const char *cur_file = strrchr(_file, PATHSEPCHAR);
    00804   const char *next_file = strrchr(file, PATHSEPCHAR);
    00805   _translation = next_file != NULL && cur_file != NULL && strcmp(cur_file, next_file) != 0;
    00806   _file = file;
    00807
    00808   /* For each new file we parse, reset the genders, and language codes */
    00809   MemSetT(&_lang, 0);
    00810   strecpy(_lang.digit_group_separator, ",", lastof(_lang.digit_group_separator));
    00811   strecpy(_lang.digit_group_separator_currency, ",", lastof(_lang.digit_group_separator_currency));
    00812   strecpy(_lang.digit_decimal_separator, ".", lastof(_lang.digit_decimal_separator));
    00813
    00814   in = fopen(file, "r");
    00815   if (in == NULL) error("Cannot open file");
    00816   _cur_line = 1;
    00817   while (fgets(buf, sizeof(buf), in) != NULL) {
    00818     rstrip(buf);
    00819     HandleString(buf, english);
    00820     _cur_line++;
    00821   }
    00822   fclose(in);
    00823
    00824   if (StrEmpty(_lang.name) || StrEmpty(_lang.own_name) || StrEmpty(_lang.isocode)) {
    00825     error("Language must include ##name, ##ownname and ##isocode");
    00826   }
    00827 }
    00828
    00829
    00830 static uint32 MyHashStr(uint32 hash, const char *s)
    00831 {
    00832   for (; *s != '\0'; s++) {
    00833     hash = ROL(hash, 3) ^ *s;
    00834     hash = (hash & 1 ? hash >> 1 ^ 0xDEADBEEF : hash >> 1);
    00835   }
    00836   return hash;
    00837 }
    00838
    00839
    00840 /* make a hash of the file to get a unique "version number" */
    00841 static void MakeHashOfStrings()
    00842 {
    00843   uint32 hash = 0;
    00844   uint i;
    00845
    00846   for (i = 0; i != lengthof(_strings); i++) {
    00847     const LangString *ls = _strings[i];
    00848
    00849     if (ls != NULL) {
    00850       const CmdStruct *cs;
    00851       const char *s;
    00852       char buf[MAX_COMMAND_PARAM_SIZE];
    00853       int argno;
    00854       int casei;
    00855
    00856       s = ls->name;
    00857       hash ^= i * 0x717239;
    00858       hash = (hash & 1 ? hash >> 1 ^ 0xDEADBEEF : hash >> 1);
    00859       hash = MyHashStr(hash, s + 1);
    00860
    00861       s = ls->english;
    00862       while ((cs = ParseCommandString(&s, buf, &argno, &casei)) != NULL) {
    00863         if (cs->flags & C_DONTCOUNT) continue;
    00864
    00865         hash ^= (cs - _cmd_structs) * 0x1234567;
    00866         hash = (hash & 1 ? hash >> 1 ^ 0xF00BAA4 : hash >> 1);
    00867       }
    00868     }
    00869   }
    00870   _hash = hash;
    00871 }
    00872
    00873
    00874 static uint CountInUse(uint grp)
    00875 {
    00876   int i;
    00877
    00878   for (i = 0x800; --i >= 0;) if (_strings[(grp << 11) + i] != NULL) break;
    00879   return i + 1;
    00880 }
    00881
    00882
    00883 bool CompareFiles(const char *n1, const char *n2)
    00884 {
    00885   FILE *f2 = fopen(n2, "rb");
    00886   if (f2 == NULL) return false;
    00887
    00888   FILE *f1 = fopen(n1, "rb");
    00889   if (f1 == NULL) error("can't open %s", n1);
    00890
    00891   size_t l1, l2;
    00892   do {
    00893     char b1[4096];
    00894     char b2[4096];
    00895     l1 = fread(b1, 1, sizeof(b1), f1);
    00896     l2 = fread(b2, 1, sizeof(b2), f2);
    00897
    00898     if (l1 != l2 || memcmp(b1, b2, l1)) {
    00899       fclose(f2);
    00900       fclose(f1);
    00901       return false;
    00902     }
    00903   } while (l1);
    00904
    00905   fclose(f2);
    00906   fclose(f1);
    00907   return true;
    00908 }
    00909
    00910
    00911 static void WriteStringsH(const char *filename)
    00912 {
    00913   int next = -1;
    00914
    00915   _output_filename = "tmp.xxx";
    00916   _output_file = fopen(_output_filename, "w");
    00917   if (_output_file == NULL) error("can't open tmp.xxx");
    00918
    00919   fprintf(_output_file, "/* This file is automatically generated. Do not modify */\n\n");
    00920   fprintf(_output_file, "#ifndef TABLE_STRINGS_H\n");
    00921   fprintf(_output_file, "#define TABLE_STRINGS_H\n");
    00922
    00923   for (int i = 0; i != lengthof(_strings); i++) {
    00924     if (_strings[i] != NULL) {
    00925       if (next != i) fprintf(_output_file, "\n");
    00926       fprintf(_output_file, "static const StringID %s = 0x%X;\n", _strings[i]->name, i);
    00927       next = i + 1;
    00928     }
    00929   }
    00930
    00931   fprintf(_output_file, "\nstatic const StringID STR_LAST_STRINGID = 0x%X;\n\n", next - 1);
    00932
    00933   /* Find the plural form with the most amount of cases. */
    00934   int max_plural_forms = 0;
    00935   for (uint i = 0; i < lengthof(_plural_forms); i++) {
    00936     max_plural_forms = max(max_plural_forms, _plural_forms[i].plural_count);
    00937   }
    00938
    00939   fprintf(_output_file,
    00940     "static const uint LANGUAGE_PACK_VERSION     = 0x%X;\n"
    00941     "static const uint LANGUAGE_MAX_PLURAL       = %d;\n"
    00942     "static const uint LANGUAGE_MAX_PLURAL_FORMS = %d;\n\n",
    00943     (uint)_hash, (uint)lengthof(_plural_forms), max_plural_forms
    00944   );
    00945
    00946   fprintf(_output_file, "#endif /* TABLE_STRINGS_H */\n");
    00947
    00948   fclose(_output_file);
    00949   _output_file = NULL;
    00950
    00951   if (CompareFiles(_output_filename, filename)) {
    00952     /* files are equal. tmp.xxx is not needed */
    00953     unlink(_output_filename);
    00954   } else {
    00955     /* else rename tmp.xxx into filename */
    00956 #if defined(WIN32) || defined(WIN64)
    00957     unlink(filename);
    00958 #endif
    00959     if (rename(_output_filename, filename) == -1) error("rename() failed");
    00960   }
    00961   _output_filename = NULL;
    00962 }
    00963
    00964 static int TranslateArgumentIdx(int argidx, int offset)
    00965 {
    00966   int sum;
    00967
    00968   if (argidx < 0 || (uint)argidx >= lengthof(_cur_pcs.cmd)) {
    00969     error("invalid argidx %d", argidx);
    00970   }
    00971   const CmdStruct *cs = _cur_pcs.cmd[argidx];
    00972   if (cs != NULL && cs->consumes <= offset) {
    00973     error("invalid argidx offset %d:%d", argidx, offset);
    00974   }
    00975
    00976   if (_cur_pcs.cmd[argidx] == NULL) {
    00977     error("no command for this argidx %d", argidx);
    00978   }
    00979
    00980   for (int i = sum = 0; i < argidx; i++) {
    00981     const CmdStruct *cs = _cur_pcs.cmd[i];
    00982
    00983     sum += (cs != NULL) ? cs->consumes : 1;
    00984   }
    00985
    00986   return sum + offset;
    00987 }
    00988
    00989 static void PutArgidxCommand()
    00990 {
    00991   PutUtf8(SCC_ARG_INDEX);
    00992   PutByte(TranslateArgumentIdx(_cur_argidx));
    00993 }
    00994
    00995
    00996 static void PutCommandString(const char *str)
    00997 {
    00998   _cur_argidx = 0;
    00999
    01000   while (*str != '\0') {
    01001     /* Process characters as they are until we encounter a { */
    01002     if (*str != '{') {
    01003       PutByte(*str++);
    01004       continue;
    01005     }
    01006
    01007     char param[MAX_COMMAND_PARAM_SIZE];
    01008     int argno;
    01009     int casei;
    01010     const CmdStruct *cs = ParseCommandString(&str, param, &argno, &casei);
    01011     if (cs == NULL) break;
    01012
    01013     if (casei != -1) {
    01014       PutUtf8(SCC_SETCASE); // {SETCASE}
    01015       PutByte(casei);
    01016     }
    01017
    01018     /* For params that consume values, we need to handle the argindex properly */
    01019     if (cs->consumes > 0) {
    01020       /* Check if we need to output a move-param command */
    01021       if (argno != -1 && argno != _cur_argidx) {
    01022         _cur_argidx = argno;
    01023         PutArgidxCommand();
    01024       }
    01025
    01026       /* Output the one from the master string... it's always accurate. */
    01027       cs = _cur_pcs.cmd[_cur_argidx++];
    01028       if (cs == NULL) {
    01029         error("%s: No argument exists at position %d", _cur_ident, _cur_argidx - 1);
    01030       }
    01031     }
    01032
    01033     cs->proc(param, cs->value);
    01034   }
    01035 }
    01036
    01037 static void WriteLength(FILE *f, uint length)
    01038 {
    01039   if (length < 0xC0) {
    01040     fputc(length, f);
    01041   } else if (length < 0x4000) {
    01042     fputc((length >> 8) | 0xC0, f);
    01043     fputc(length & 0xFF, f);
    01044   } else {
    01045     error("string too long");
    01046   }
    01047 }
    01048
    01049
    01050 static void WriteLangfile(const char *filename)
    01051 {
    01052   uint in_use[32];
    01053
    01054   _output_filename = filename;
    01055   _output_file = fopen(filename, "wb");
    01056   if (_output_file == NULL) error("can't open %s", filename);
    01057
    01058   for (int i = 0; i != 32; i++) {
    01059     uint n = CountInUse(i);
    01060
    01061     in_use[i] = n;
    01062     _lang.offsets[i] = TO_LE16(n);
    01063   }
    01064
    01065   _lang.ident = TO_LE32(LanguagePackHeader::IDENT);
    01066   _lang.version = TO_LE32(_hash);
    01067   _lang.winlangid = TO_LE16(_lang.winlangid);
    01068
    01069   fwrite(&_lang, sizeof(_lang), 1, _output_file);
    01070
    01071   for (int i = 0; i != 32; i++) {
    01072     for (uint j = 0; j != in_use[i]; j++) {
    01073       const LangString *ls = _strings[(i << 11) + j];
    01074       const Case *casep;
    01075       const char *cmdp;
    01076
    01077       /* For undefined strings, just set that it's an empty string */
    01078       if (ls == NULL) {
    01079         WriteLength(_output_file, 0);
    01080         continue;
    01081       }
    01082
    01083       _cur_ident = ls->name;
    01084       _cur_line = ls->line;
    01085
    01086       /* Produce a message if a string doesn't have a translation. */
    01087       if (_show_todo > 0 && ls->translated == NULL) {
    01088         if ((_show_todo & 2) != 0) {
    01089           strgen_warning("'%s' is untranslated", ls->name);
    01090         }
    01091         if ((_show_todo & 1) != 0) {
    01092           const char *s = "<TODO> ";
    01093           while (*s != '\0') PutByte(*s++);
    01094         }
    01095       }
    01096
    01097       /* Extract the strings and stuff from the english command string */
    01098       ExtractCommandString(&_cur_pcs, ls->english, false);
    01099
    01100       if (ls->translated_case != NULL || ls->translated != NULL) {
    01101         casep = ls->translated_case;
    01102         cmdp = ls->translated;
    01103       } else {
    01104         casep = NULL;
    01105         cmdp = ls->english;
    01106       }
    01107
    01108       _translated = _masterlang || (cmdp != ls->english);
    01109
    01110       if (casep != NULL) {
    01111         const Case *c;
    01112         uint num;
    01113
    01114         /* Need to output a case-switch.
    01115          * It has this format
    01116          * <0x9E> <NUM CASES> <CASE1> <LEN1> <STRING1> <CASE2> <LEN2> <STRING2> <CASE3> <LEN3> <STRING3> <STRINGDEFAULT>
    01117          * Each LEN is printed using 2 bytes in big endian order. */
    01118         PutUtf8(SCC_SWITCH_CASE);
    01119         /* Count the number of cases */
    01120         for (num = 0, c = casep; c; c = c->next) num++;
    01121         PutByte(num);
    01122
    01123         /* Write each case */
    01124         for (c = casep; c != NULL; c = c->next) {
    01125           uint pos;
    01126
    01127           PutByte(c->caseidx);
    01128           /* Make some space for the 16-bit length */
    01129           pos = _put_pos;
    01130           PutByte(0);
    01131           PutByte(0);
    01132           /* Write string */
    01133           PutCommandString(c->string);
    01134           PutByte(0); // terminate with a zero
    01135           /* Fill in the length */
    01136           _put_buf[pos + 0] = GB(_put_pos - (pos + 2), 8, 8);
    01137           _put_buf[pos + 1] = GB(_put_pos - (pos + 2), 0, 8);
    01138         }
    01139       }
    01140
    01141       if (cmdp != NULL) PutCommandString(cmdp);
    01142
    01143       WriteLength(_output_file, _put_pos);
    01144       fwrite(_put_buf, 1, _put_pos, _output_file);
    01145       _put_pos = 0;
    01146     }
    01147   }
    01148
    01149   fputc(0, _output_file);
    01150   fclose(_output_file);
    01151
    01152   _output_file = NULL;
    01153   _output_filename = NULL;
    01154 }
    01155
    01157 static inline void ottd_mkdir(const char *directory)
    01158 {
    01159 #if defined(WIN32) || defined(__WATCOMC__)
    01160     mkdir(directory);
    01161 #else
    01162     mkdir(directory, 0755);
    01163 #endif
    01164 }
    01165
    01171 static inline char *mkpath(char *buf, size_t buflen, const char *path, const char *file)
    01172 {
    01173   ttd_strlcpy(buf, path, buflen); // copy directory into buffer
    01174
    01175   char *p = strchr(buf, '\0'); // add path seperator if necessary
    01176   if (p[-1] != PATHSEPCHAR && (size_t)(p - buf) + 1 < buflen) *p++ = PATHSEPCHAR;
    01177   ttd_strlcpy(p, file, buflen - (size_t)(p - buf)); // catenate filename at end of buffer
    01178   return buf;
    01179 }
    01180
    01181 #if defined(__MINGW32__)
    01182
    01187 static inline char *replace_pathsep(char *s)
    01188 {
    01189   for (char *c = s; *c != '\0'; c++) if (*c == '/') *c = '\\';
    01190   return s;
    01191 }
    01192 #else
    01193 static inline char *replace_pathsep(char *s) { return s; }
    01194 #endif
    01195
    01196 int CDECL main(int argc, char *argv[])
    01197 {
    01198   char pathbuf[MAX_PATH];
    01199   const char *src_dir = ".";
    01200   const char *dest_dir = NULL;
    01201
    01202   while (argc > 1 && *argv[1] == '-') {
    01203     if (strcmp(argv[1], "-v") == 0 || strcmp(argv[1], "--version") == 0) {
    01204       puts("$Revision$");
    01205       return 0;
    01206     }
    01207
    01208     if (strcmp(argv[1], "-export-commands") == 0) {
    01209       printf("args\tflags\tcommand\treplacement\n");
    01210       for (const CmdStruct *cs = _cmd_structs; cs < endof(_cmd_structs); cs++) {
    01211         char flags;
    01212         switch (cs->value) {
    01213           case 0x200E: case 0x200F: // Implicit BIDI controls
    01214           case 0x202A: case 0x202B: case 0x202C: case 0x202D: case 0x202E: // Explicit BIDI controls
    01215           case 0xA0: // Non breaking space
    01216           case '\n': // Newlines may be added too
    01217           case '{':  // This special
    01218             /* This command may be in the translation when it is not in base */
    01219             flags = 'i';
    01220             break;
    01221
    01222           default:
    01223             if (cs->proc == EmitGender) {
    01224               flags = 'g'; // Command needs number of parameters defined by number of genders
    01225             } else if (cs->proc == EmitPlural) {
    01226               flags = 'p'; // Command needs number of parameters defined by plural value
    01227             } else {
    01228               flags = '0'; // Command needs no parameters
    01229             }
    01230         }
    01231         printf("%i\t%c\t\"%s\"\t\"%s\"\n", cs->consumes, flags, cs->cmd, strstr(cs->cmd, "STRING") ? "STRING" : cs->cmd);
    01232       }
    01233       return 0;
    01234     }
    01235
    01236     if (strcmp(argv[1], "-export-plurals") == 0) {
    01237       printf("count\tdescription\n");
    01238       for (const PluralForm *pf = _plural_forms; pf < endof(_plural_forms); pf++) {
    01239         printf("%i\t\"%s\"\n", pf->plural_count, pf->description);
    01240       }
    01241       return 0;
    01242     }
    01243
    01244     if (strcmp(argv[1], "-export-pragmas") == 0) {
    01245       printf("name\tflags\tdefault\tdescription\n");
    01246       for (size_t i = 0; i < lengthof(_pragmas); i++) {
    01247         printf("\"%s\"\t%s\t\"%s\"\t\"%s\"\n",
    01248             _pragmas[i][0], _pragmas[i][1], _pragmas[i][2], _pragmas[i][3]);
    01249       }
    01250       return 0;
    01251     }
    01252
    01253     if (strcmp(argv[1], "-t") == 0 || strcmp(argv[1], "--todo") == 0) {
    01254       _show_todo |= 1;
    01255       argc--, argv++;
    01256       continue;
    01257     }
    01258
    01259     if (strcmp(argv[1], "-w") == 0 || strcmp(argv[1], "--warning") == 0) {
    01260       _show_todo |= 2;
    01261       argc--, argv++;
    01262       continue;
    01263     }
    01264
    01265     if (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-?") == 0) {
    01266       puts(
    01267         "strgen - $Revision$\n"
    01268         " -v | --version    print version information and exit\n"
    01269         " -t | --todo       replace any untranslated strings with '<TODO>'\n"
    01270         " -w | --warning    print a warning for any untranslated strings\n"
    01271         " -h | -? | --help  print this help message and exit\n"
    01272         " -s | --source_dir search for english.txt in the specified directory\n"
    01273         " -d | --dest_dir   put output file in the specified directory, create if needed\n"
    01274         " -export-commands  export all commands and exit\n"
    01275         " -export-plurals   export all plural forms and exit\n"
    01276         " -export-pragmas   export all pragmas and exit\n"
    01277         " Run without parameters and strgen will search for english.txt and parse it,\n"
    01278         " creating strings.h. Passing an argument, strgen will translate that language\n"
    01279         " file using english.txt as a reference and output <language>.lng."
    01280       );
    01281       return 0;
    01282     }
    01283
    01284     if (argc > 2 && (strcmp(argv[1], "-s") == 0 || strcmp(argv[1], "--source_dir") == 0)) {
    01285       src_dir = replace_pathsep(argv[2]);
    01286       argc -= 2, argv += 2;
    01287       continue;
    01288     }
    01289
    01290     if (argc > 2 && (strcmp(argv[1], "-d") == 0 || strcmp(argv[1], "--dest_dir") == 0)) {
    01291       dest_dir = replace_pathsep(argv[2]);
    01292       argc -= 2, argv += 2;
    01293       continue;
    01294     }
    01295
    01296     fprintf(stderr, "Invalid arguments\n");
    01297     return 0;
    01298   }
    01299
    01300   if (dest_dir == NULL) dest_dir = src_dir; // if dest_dir is not specified, it equals src_dir
    01301
    01302   /* strgen has two modes of operation. If no (free) arguments are passed
    01303    * strgen generates strings.h to the destination directory. If it is supplied
    01304    * with a (free) parameter the program will translate that language to destination
    01305    * directory. As input english.txt is parsed from the source directory */
    01306   if (argc == 1) {
    01307     mkpath(pathbuf, lengthof(pathbuf), src_dir, "english.txt");
    01308
    01309     /* parse master file */
    01310     _masterlang = true;
    01311     ParseFile(pathbuf, true);
    01312     MakeHashOfStrings();
    01313     if (_errors) return 1;
    01314
    01315     /* write strings.h */
    01316     ottd_mkdir(dest_dir);
    01317     mkpath(pathbuf, lengthof(pathbuf), dest_dir, "strings.h");
    01318     WriteStringsH(pathbuf);
    01319   } else if (argc == 2) {
    01320     char *r;
    01321
    01322     mkpath(pathbuf, lengthof(pathbuf), src_dir, "english.txt");
    01323
    01324     /* parse master file and check if target file is correct */
    01325     _masterlang = false;
    01326     ParseFile(pathbuf, true);
    01327     MakeHashOfStrings();
    01328     ParseFile(replace_pathsep(argv[1]), false); // target file
    01329     if (_errors) return 1;
    01330
    01331     /* get the targetfile, strip any directories and append to destination path */
    01332     r = strrchr(argv[1], PATHSEPCHAR);
    01333     mkpath(pathbuf, lengthof(pathbuf), dest_dir, (r != NULL) ? &r[1] : argv[1]);
    01334
    01335     /* rename the .txt (input-extension) to .lng */
    01336     r = strrchr(pathbuf, '.');
    01337     if (r == NULL || strcmp(r, ".txt") != 0) r = strchr(pathbuf, '\0');
    01338     ttd_strlcpy(r, ".lng", (size_t)(r - pathbuf));
    01339     WriteLangfile(pathbuf);
    01340
    01341     /* if showing warnings, print a summary of the language */
    01342     if ((_show_todo & 2) != 0) {
    01343       fprintf(stdout, "%d warnings and %d errors for %s\n", _warnings, _errors, pathbuf);
    01344     }
    01345   } else {
    01346     fprintf(stderr, "Invalid arguments\n");
    01347   }
    01348
    01349   return 0;
    01350 }