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00012 #include "stdafx.h"
00013 #include "core/alloc_func.hpp"
00014 #include "core/mem_func.hpp"
00015 #include "debug.h"
00016 #include "ini_type.h"
00017 #include "string_func.h"
00018 #include "fileio_func.h"
00019
00020 #if (defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309L) || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 500)
00021 # define WITH_FDATASYNC
00022 # include <unistd.h>
00023 #endif
00024
00025 #ifdef WIN32
00026 # include <shellapi.h>
00027 #endif
00028
00035 IniItem::IniItem(IniGroup *parent, const char *name, size_t len) : next(NULL), value(NULL), comment(NULL)
00036 {
00037 if (len == 0) len = strlen(name);
00038
00039 this->name = strndup(name, len);
00040 *parent->last_item = this;
00041 parent->last_item = &this->next;
00042 }
00043
00045 IniItem::~IniItem()
00046 {
00047 free(this->name);
00048 free(this->value);
00049 free(this->comment);
00050
00051 delete this->next;
00052 }
00053
00058 void IniItem::SetValue(const char *value)
00059 {
00060 free(this->value);
00061 this->value = strdup(value);
00062 }
00063
00070 IniGroup::IniGroup(IniFile *parent, const char *name, size_t len) : next(NULL), type(IGT_VARIABLES), item(NULL), comment(NULL)
00071 {
00072 if (len == 0) len = strlen(name);
00073
00074 this->name = strndup(name, len);
00075 this->last_item = &this->item;
00076 *parent->last_group = this;
00077 parent->last_group = &this->next;
00078
00079 if (parent->list_group_names == NULL) return;
00080
00081 for (uint i = 0; parent->list_group_names[i] != NULL; i++) {
00082 if (strcmp(this->name, parent->list_group_names[i]) == 0) {
00083 this->type = IGT_LIST;
00084 return;
00085 }
00086 }
00087 }
00088
00090 IniGroup::~IniGroup()
00091 {
00092 free(this->name);
00093 free(this->comment);
00094
00095 delete this->item;
00096 delete this->next;
00097 }
00098
00106 IniItem *IniGroup::GetItem(const char *name, bool create)
00107 {
00108 for (IniItem *item = this->item; item != NULL; item = item->next) {
00109 if (strcmp(item->name, name) == 0) return item;
00110 }
00111
00112 if (!create) return NULL;
00113
00114
00115 return new IniItem(this, name, strlen(name));
00116 }
00117
00121 void IniGroup::Clear()
00122 {
00123 delete this->item;
00124 this->item = NULL;
00125 this->last_item = &this->item;
00126 }
00127
00133 IniFile::IniFile(const char * const *list_group_names) : group(NULL), comment(NULL), list_group_names(list_group_names)
00134 {
00135 this->last_group = &this->group;
00136 }
00137
00139 IniFile::~IniFile()
00140 {
00141 free(this->comment);
00142 delete this->group;
00143 }
00144
00152 IniGroup *IniFile::GetGroup(const char *name, size_t len)
00153 {
00154 if (len == 0) len = strlen(name);
00155
00156
00157 for (IniGroup *group = this->group; group != NULL; group = group->next) {
00158 if (!strncmp(group->name, name, len) && group->name[len] == 0) {
00159 return group;
00160 }
00161 }
00162
00163
00164 IniGroup *group = new IniGroup(this, name, len);
00165 group->comment = strdup("\n");
00166 return group;
00167 }
00168
00173 void IniFile::RemoveGroup(const char *name)
00174 {
00175 size_t len = strlen(name);
00176 IniGroup *prev = NULL;
00177 IniGroup *group;
00178
00179
00180 for (group = this->group; group != NULL; prev = group, group = group->next) {
00181 if (strncmp(group->name, name, len) == 0) {
00182 break;
00183 }
00184 }
00185
00186 if (group == NULL) return;
00187
00188 if (prev != NULL) {
00189 prev->next = prev->next->next;
00190 if (this->last_group == &group->next) this->last_group = &prev->next;
00191 } else {
00192 this->group = this->group->next;
00193 if (this->last_group == &group->next) this->last_group = &this->group;
00194 }
00195
00196 group->next = NULL;
00197 delete group;
00198 }
00199
00205 void IniFile::LoadFromDisk(const char *filename)
00206 {
00207 assert(this->last_group == &this->group);
00208
00209 char buffer[1024];
00210 IniGroup *group = NULL;
00211
00212 char *comment = NULL;
00213 uint comment_size = 0;
00214 uint comment_alloc = 0;
00215
00216 size_t end;
00217
00218
00219
00220
00221
00222
00223
00224
00225
00226
00227
00228
00229 FILE *in = FioFOpenFile(filename, "rb", DATA_DIR, &end);
00230 if (in == NULL) return;
00231
00232 end += ftell(in);
00233
00234
00235 while ((size_t)ftell(in) < end && fgets(buffer, sizeof(buffer), in)) {
00236 char c, *s;
00237
00238 for (s = buffer; *s == ' ' || *s == '\t'; s++) {}
00239
00240
00241 char *e = s + strlen(s);
00242 while (e > s && ((c = e[-1]) == '\n' || c == '\r' || c == ' ' || c == '\t')) e--;
00243 *e = '\0';
00244
00245
00246 if (*s == '#' || *s == ';' || *s == '\0') {
00247 uint ns = comment_size + (e - s + 1);
00248 uint a = comment_alloc;
00249
00250 if (ns > a) {
00251 a = max(a, 128U);
00252 do a *= 2; while (a < ns);
00253 comment = ReallocT(comment, comment_alloc = a);
00254 }
00255 uint pos = comment_size;
00256 comment_size += (e - s + 1);
00257 comment[pos + e - s] = '\n';
00258 memcpy(comment + pos, s, e - s);
00259 continue;
00260 }
00261
00262
00263 if (s[0] == '[') {
00264 if (e[-1] != ']') {
00265 ShowInfoF("ini: invalid group name '%s'", buffer);
00266 } else {
00267 e--;
00268 }
00269 s++;
00270 group = new IniGroup(this, s, e - s);
00271 if (comment_size) {
00272 group->comment = strndup(comment, comment_size);
00273 comment_size = 0;
00274 }
00275 } else if (group) {
00276 char *t;
00277
00278 if (*s == '\"') {
00279 s++;
00280 for (t = s; *t != '\0' && *t != '\"'; t++) {}
00281 if (*t == '\"') *t = ' ';
00282 } else {
00283 for (t = s; *t != '\0' && *t != '=' && *t != '\t' && *t != ' '; t++) {}
00284 }
00285
00286
00287 IniItem *item = new IniItem(group, s, t - s);
00288 if (comment_size) {
00289 item->comment = strndup(comment, comment_size);
00290 comment_size = 0;
00291 }
00292
00293
00294 while (*t == '=' || *t == ' ' || *t == '\t') t++;
00295
00296 bool quoted = (*t == '\"');
00297
00298 if (*t == '\"') t++;
00299
00300 e = t + strlen(t);
00301 if (e > t && e[-1] == '\"') e--;
00302 *e = '\0';
00303
00304
00305 item->value = (!quoted && e == t) ? NULL : strndup(t, e - t);
00306 } else {
00307
00308 ShowInfoF("ini: '%s' outside of group", buffer);
00309 }
00310 }
00311
00312 if (comment_size > 0) {
00313 this->comment = strndup(comment, comment_size);
00314 comment_size = 0;
00315 }
00316
00317 free(comment);
00318 fclose(in);
00319 }
00320
00326 bool IniFile::SaveToDisk(const char *filename)
00327 {
00328
00329
00330
00331
00332
00333 char file_new[MAX_PATH];
00334
00335 strecpy(file_new, filename, lastof(file_new));
00336 strecat(file_new, ".new", lastof(file_new));
00337 FILE *f = fopen(file_new, "w");
00338 if (f == NULL) return false;
00339
00340 for (const IniGroup *group = this->group; group != NULL; group = group->next) {
00341 if (group->comment) fputs(group->comment, f);
00342 fprintf(f, "[%s]\n", group->name);
00343 for (const IniItem *item = group->item; item != NULL; item = item->next) {
00344 if (item->comment != NULL) fputs(item->comment, f);
00345
00346
00347 if (strchr(item->name, ' ') != NULL ||
00348 item->name[0] == '[') {
00349 fprintf(f, "\"%s\"", item->name);
00350 } else {
00351 fprintf(f, "%s", item->name);
00352 }
00353
00354 fprintf(f, " = %s\n", item->value == NULL ? "" : item->value);
00355 }
00356 }
00357 if (this->comment) fputs(this->comment, f);
00358
00359
00360
00361
00362
00363
00364
00365 #ifdef WITH_FDATASYNC
00366 int ret = fdatasync(fileno(f));
00367 fclose(f);
00368 if (ret != 0) return false;
00369 #else
00370 fclose(f);
00371 #endif
00372
00373 #if defined(WIN32) || defined(WIN64)
00374
00375 TCHAR tfilename[MAX_PATH + 1], tfile_new[MAX_PATH + 1];
00376 _tcsncpy(tfilename, OTTD2FS(filename), MAX_PATH);
00377 _tcsncpy(tfile_new, OTTD2FS(file_new), MAX_PATH);
00378
00379 tfilename[MAX_PATH - 1] = '\0';
00380 tfile_new[MAX_PATH - 1] = '\0';
00381 tfilename[_tcslen(tfilename) + 1] = '\0';
00382 tfile_new[_tcslen(tfile_new) + 1] = '\0';
00383
00384
00385 SHFILEOPSTRUCT shfopt;
00386 MemSetT(&shfopt, 0);
00387 shfopt.wFunc = FO_MOVE;
00388 shfopt.fFlags = FOF_NOCONFIRMATION | FOF_NOCONFIRMMKDIR | FOF_NOERRORUI | FOF_SILENT;
00389 shfopt.pFrom = tfile_new;
00390 shfopt.pTo = tfilename;
00391 SHFileOperation(&shfopt);
00392 #else
00393 rename(file_new, filename);
00394 #endif
00395
00396 return true;
00397 }