gio/glib-compile-schemas.c

   1 /*
   2  * Copyright © 2010 Codethink Limited
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Author: Ryan Lortie <desrt@desrt.ca>
  18  */
  19
  20 /* Prologue {{{1 */
  21 #include "config.h"
  22
  23 #include <gstdio.h>
  24 #include <gi18n.h>
  25
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include <locale.h>
  29
  30 #include "gvdb/gvdb-builder.h"
  31 #include "strinfo.c"
  32
  33 #ifdef G_OS_WIN32
  34 #include "glib/glib-private.h"
  35 #endif
  36
  37 static void
  38 strip_string (GString *string)
  39 {
  40   gint i;
  41
  42   for (i = 0; g_ascii_isspace (string->str[i]); i++);
  43   g_string_erase (string, 0, i);
  44
  45   if (string->len > 0)
  46     {
  47       /* len > 0, so there must be at least one non-whitespace character */
  48       for (i = string->len - 1; g_ascii_isspace (string->str[i]); i--);
  49       g_string_truncate (string, i + 1);
  50     }
  51 }
  52
  53 /* Handling of <enum> {{{1 */
  54 typedef struct
  55 {
  56   GString *strinfo;
  57
  58   gboolean is_flags;
  59 } EnumState;
  60
  61 static void
  62 enum_state_free (gpointer data)
  63 {
  64   EnumState *state = data;
  65
  66   g_string_free (state->strinfo, TRUE);
  67   g_slice_free (EnumState, state);
  68 }
  69
  70 static EnumState *
  71 enum_state_new (gboolean is_flags)
  72 {
  73   EnumState *state;
  74
  75   state = g_slice_new (EnumState);
  76   state->strinfo = g_string_new (NULL);
  77   state->is_flags = is_flags;
  78
  79   return state;
  80 }
  81
  82 static void
  83 enum_state_add_value (EnumState    *state,
  84                       const gchar  *nick,
  85                       const gchar  *valuestr,
  86                       GError      **error)
  87 {
  88   gint64 value;
  89   gchar *end;
  90
  91   if (nick[0] == '\0' || nick[1] == '\0')
  92     {
  93       g_set_error (error, G_MARKUP_ERROR,
  94                    G_MARKUP_ERROR_INVALID_CONTENT,
  95                    _("nick must be a minimum of 2 characters"));
  96       return;
  97     }
  98
  99   value = g_ascii_strtoll (valuestr, &end, 0);
 100   if (*end || (state->is_flags ?
 101                 (value > G_MAXUINT32 || value < 0) :
 102                 (value > G_MAXINT32 || value < G_MININT32)))
 103     {
 104       g_set_error (error, G_MARKUP_ERROR,
 105                    G_MARKUP_ERROR_INVALID_CONTENT,
 106                    _("Invalid numeric value"));
 107       return;
 108     }
 109
 110   if (strinfo_builder_contains (state->strinfo, nick))
 111     {
 112       g_set_error (error, G_MARKUP_ERROR,
 113                    G_MARKUP_ERROR_INVALID_CONTENT,
 114                    _("<value nick='%s'/> already specified"), nick);
 115       return;
 116     }
 117
 118   if (strinfo_builder_contains_value (state->strinfo, value))
 119     {
 120       g_set_error (error, G_MARKUP_ERROR,
 121                    G_MARKUP_ERROR_INVALID_CONTENT,
 122                    _("value='%s' already specified"), valuestr);
 123       return;
 124     }
 125
 126   /* Silently drop the null case if it is mentioned.
 127    * It is properly denoted with an empty array.
 128    */
 129   if (state->is_flags && value == 0)
 130     return;
 131
 132   if (state->is_flags && (value & (value - 1)))
 133     {
 134       g_set_error (error, G_MARKUP_ERROR,
 135                    G_MARKUP_ERROR_INVALID_CONTENT,
 136                    _("flags values must have at most 1 bit set"));
 137       return;
 138     }
 139
 140   /* Since we reject exact duplicates of value='' and we only allow one
 141    * bit to be set, it's not possible to have overlaps.
 142    *
 143    * If we loosen the one-bit-set restriction we need an overlap check.
 144    */
 145
 146   strinfo_builder_append_item (state->strinfo, nick, value);
 147 }
 148
 149 static void
 150 enum_state_end (EnumState **state_ptr,
 151                 GError    **error)
 152 {
 153   EnumState *state;
 154
 155   state = *state_ptr;
 156   *state_ptr = NULL;
 157
 158   if (state->strinfo->len == 0)
 159     g_set_error (error,
 160                  G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 161                  _("<%s> must contain at least one <value>"),
 162                  state->is_flags ? "flags" : "enum");
 163 }
 164
 165 /* Handling of <key> {{{1 */
 166 typedef struct
 167 {
 168   /* for <child>, @child_schema will be set.
 169    * for <key>, everything else will be set.
 170    */
 171   gchar        *child_schema;
 172
 173
 174   GVariantType *type;
 175   gboolean      have_gettext_domain;
 176
 177   gchar         l10n;
 178   gchar        *l10n_context;
 179   GString      *unparsed_default_value;
 180   GVariant     *default_value;
 181
 182   GVariantDict *desktop_overrides;
 183
 184   GString      *strinfo;
 185   gboolean      is_enum;
 186   gboolean      is_flags;
 187
 188   GVariant     *minimum;
 189   GVariant     *maximum;
 190
 191   gboolean      has_choices;
 192   gboolean      has_aliases;
 193   gboolean      is_override;
 194
 195   gboolean      checked;
 196   GVariant     *serialised;
 197
 198   gboolean      summary_seen;
 199   gboolean      description_seen;
 200 } KeyState;
 201
 202 static KeyState *
 203 key_state_new (const gchar *type_string,
 204                const gchar *gettext_domain,
 205                gboolean     is_enum,
 206                gboolean     is_flags,
 207                GString     *strinfo)
 208 {
 209   KeyState *state;
 210
 211   state = g_slice_new0 (KeyState);
 212   state->type = g_variant_type_new (type_string);
 213   state->have_gettext_domain = gettext_domain != NULL;
 214   state->is_enum = is_enum;
 215   state->is_flags = is_flags;
 216   state->summary_seen = FALSE;
 217   state->description_seen = FALSE;
 218
 219   if (strinfo)
 220     state->strinfo = g_string_new_len (strinfo->str, strinfo->len);
 221   else
 222     state->strinfo = g_string_new (NULL);
 223
 224   return state;
 225 }
 226
 227 static KeyState *
 228 key_state_override (KeyState    *state,
 229                     const gchar *gettext_domain)
 230 {
 231   KeyState *copy;
 232
 233   copy = g_slice_new0 (KeyState);
 234   copy->type = g_variant_type_copy (state->type);
 235   copy->have_gettext_domain = gettext_domain != NULL;
 236   copy->strinfo = g_string_new_len (state->strinfo->str,
 237                                     state->strinfo->len);
 238   copy->is_enum = state->is_enum;
 239   copy->is_flags = state->is_flags;
 240   copy->is_override = TRUE;
 241
 242   if (state->minimum)
 243     {
 244       copy->minimum = g_variant_ref (state->minimum);
 245       copy->maximum = g_variant_ref (state->maximum);
 246     }
 247
 248   return copy;
 249 }
 250
 251 static KeyState *
 252 key_state_new_child (const gchar *child_schema)
 253 {
 254   KeyState *state;
 255
 256   state = g_slice_new0 (KeyState);
 257   state->child_schema = g_strdup (child_schema);
 258
 259   return state;
 260 }
 261
 262 static gboolean
 263 is_valid_choices (GVariant *variant,
 264                   GString  *strinfo)
 265 {
 266   switch (g_variant_classify (variant))
 267     {
 268       case G_VARIANT_CLASS_MAYBE:
 269       case G_VARIANT_CLASS_ARRAY:
 270         {
 271           gboolean valid = TRUE;
 272           GVariantIter iter;
 273
 274           g_variant_iter_init (&iter, variant);
 275
 276           while (valid && (variant = g_variant_iter_next_value (&iter)))
 277             {
 278               valid = is_valid_choices (variant, strinfo);
 279               g_variant_unref (variant);
 280             }
 281
 282           return valid;
 283         }
 284
 285       case G_VARIANT_CLASS_STRING:
 286         return strinfo_is_string_valid ((const guint32 *) strinfo->str,
 287                                         strinfo->len / 4,
 288                                         g_variant_get_string (variant, NULL));
 289
 290       default:
 291         g_assert_not_reached ();
 292     }
 293 }
 294
 295
 296 /* Gets called at </default> </choices> or <range/> to check for
 297  * validity of the default value so that any inconsistency is
 298  * reported as soon as it is encountered.
 299  */
 300 static void
 301 key_state_check_range (KeyState  *state,
 302                        GError   **error)
 303 {
 304   if (state->default_value)
 305     {
 306       const gchar *tag;
 307
 308       tag = state->is_override ? "override" : "default";
 309
 310       if (state->minimum)
 311         {
 312           if (g_variant_compare (state->default_value, state->minimum) < 0 ||
 313               g_variant_compare (state->default_value, state->maximum) > 0)
 314             {
 315               g_set_error (error, G_MARKUP_ERROR,
 316                            G_MARKUP_ERROR_INVALID_CONTENT,
 317                            _("<%s> is not contained in "
 318                            "the specified range"), tag);
 319             }
 320         }
 321
 322       else if (state->strinfo->len)
 323         {
 324           if (!is_valid_choices (state->default_value, state->strinfo))
 325             {
 326               if (state->is_enum)
 327                 g_set_error (error, G_MARKUP_ERROR,
 328                              G_MARKUP_ERROR_INVALID_CONTENT,
 329                              _("<%s> is not a valid member of "
 330                              "the specified enumerated type"), tag);
 331
 332               else if (state->is_flags)
 333                 g_set_error (error, G_MARKUP_ERROR,
 334                              G_MARKUP_ERROR_INVALID_CONTENT,
 335                              _("<%s> contains string not in the "
 336                              "specified flags type"), tag);
 337
 338               else
 339                 g_set_error (error, G_MARKUP_ERROR,
 340                              G_MARKUP_ERROR_INVALID_CONTENT,
 341                              _("<%s> contains a string not in "
 342                              "<choices>"), tag);
 343             }
 344         }
 345     }
 346 }
 347
 348 static void
 349 key_state_set_range (KeyState     *state,
 350                      const gchar  *min_str,
 351                      const gchar  *max_str,
 352                      GError      **error)
 353 {
 354   const struct {
 355     const gchar  type;
 356     const gchar *min;
 357     const gchar *max;
 358   } table[] = {
 359     { 'y',                    "0",                  "255" },
 360     { 'n',               "-32768",                "32767" },
 361     { 'q',                    "0",                "65535" },
 362     { 'i',          "-2147483648",           "2147483647" },
 363     { 'u',                    "0",           "4294967295" },
 364     { 'x', "-9223372036854775808",  "9223372036854775807" },
 365     { 't',                    "0", "18446744073709551615" },
 366     { 'd',                 "-inf",                  "inf" },
 367   };
 368   gboolean type_ok = FALSE;
 369   gint i;
 370
 371   if (state->minimum)
 372     {
 373       g_set_error_literal (error, G_MARKUP_ERROR,
 374                            G_MARKUP_ERROR_INVALID_CONTENT,
 375                            _("<range/> already specified for this key"));
 376       return;
 377     }
 378
 379   for (i = 0; i < G_N_ELEMENTS (table); i++)
 380     if (*(char *) state->type == table[i].type)
 381       {
 382         min_str = min_str ? min_str : table[i].min;
 383         max_str = max_str ? max_str : table[i].max;
 384         type_ok = TRUE;
 385         break;
 386       }
 387
 388   if (!type_ok)
 389     {
 390       gchar *type = g_variant_type_dup_string (state->type);
 391       g_set_error (error, G_MARKUP_ERROR,
 392                   G_MARKUP_ERROR_INVALID_CONTENT,
 393                   _("<range> not allowed for keys of type “%s”"), type);
 394       g_free (type);
 395       return;
 396     }
 397
 398   state->minimum = g_variant_parse (state->type, min_str, NULL, NULL, error);
 399   if (state->minimum == NULL)
 400     return;
 401
 402   state->maximum = g_variant_parse (state->type, max_str, NULL, NULL, error);
 403   if (state->maximum == NULL)
 404     return;
 405
 406   if (g_variant_compare (state->minimum, state->maximum) > 0)
 407     {
 408       g_set_error (error, G_MARKUP_ERROR,
 409                    G_MARKUP_ERROR_INVALID_CONTENT,
 410                    _("<range> specified minimum is greater than maximum"));
 411       return;
 412     }
 413
 414   key_state_check_range (state, error);
 415 }
 416
 417 static GString *
 418 key_state_start_default (KeyState     *state,
 419                          const gchar  *l10n,
 420                          const gchar  *context,
 421                          GError      **error)
 422 {
 423   if (l10n != NULL)
 424     {
 425       if (strcmp (l10n, "messages") == 0)
 426         state->l10n = 'm';
 427
 428       else if (strcmp (l10n, "time") == 0)
 429         state->l10n = 't';
 430
 431       else
 432         {
 433           g_set_error (error, G_MARKUP_ERROR,
 434                        G_MARKUP_ERROR_INVALID_CONTENT,
 435                        _("unsupported l10n category: %s"), l10n);
 436           return NULL;
 437         }
 438
 439       if (!state->have_gettext_domain)
 440         {
 441           g_set_error_literal (error, G_MARKUP_ERROR,
 442                                G_MARKUP_ERROR_INVALID_CONTENT,
 443                                _("l10n requested, but no "
 444                                "gettext domain given"));
 445           return NULL;
 446         }
 447
 448       state->l10n_context = g_strdup (context);
 449     }
 450
 451   else if (context != NULL)
 452     {
 453       g_set_error_literal (error, G_MARKUP_ERROR,
 454                            G_MARKUP_ERROR_INVALID_CONTENT,
 455                            _("translation context given for "
 456                            "value without l10n enabled"));
 457       return NULL;
 458     }
 459
 460   return g_string_new (NULL);
 461 }
 462
 463 static void
 464 key_state_end_default (KeyState  *state,
 465                        GString  **string,
 466                        GError   **error)
 467 {
 468   state->unparsed_default_value = *string;
 469   *string = NULL;
 470
 471   state->default_value = g_variant_parse (state->type,
 472                                           state->unparsed_default_value->str,
 473                                           NULL, NULL, error);
 474   if (!state->default_value)
 475     {
 476       gchar *type = g_variant_type_dup_string (state->type);
 477       g_prefix_error (error, _("Failed to parse <default> value of type “%s”: "), type);
 478       g_free (type);
 479     }
 480
 481   key_state_check_range (state, error);
 482 }
 483
 484 static void
 485 key_state_start_choices (KeyState  *state,
 486                          GError   **error)
 487 {
 488   const GVariantType *type = state->type;
 489
 490   if (state->is_enum)
 491     {
 492       g_set_error_literal (error, G_MARKUP_ERROR,
 493                            G_MARKUP_ERROR_INVALID_CONTENT,
 494                            _("<choices> cannot be specified for keys "
 495                            "tagged as having an enumerated type"));
 496       return;
 497     }
 498
 499   if (state->has_choices)
 500     {
 501       g_set_error_literal (error, G_MARKUP_ERROR,
 502                            G_MARKUP_ERROR_INVALID_CONTENT,
 503                            _("<choices> already specified for this key"));
 504       return;
 505     }
 506
 507   while (g_variant_type_is_maybe (type) || g_variant_type_is_array (type))
 508     type = g_variant_type_element (type);
 509
 510   if (!g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
 511     {
 512       gchar *type_string = g_variant_type_dup_string (state->type);
 513       g_set_error (error, G_MARKUP_ERROR,
 514                    G_MARKUP_ERROR_INVALID_CONTENT,
 515                    _("<choices> not allowed for keys of type “%s”"),
 516                    type_string);
 517       g_free (type_string);
 518       return;
 519     }
 520 }
 521
 522 static void
 523 key_state_add_choice (KeyState     *state,
 524                       const gchar  *choice,
 525                       GError      **error)
 526 {
 527   if (strinfo_builder_contains (state->strinfo, choice))
 528     {
 529       g_set_error (error, G_MARKUP_ERROR,
 530                    G_MARKUP_ERROR_INVALID_CONTENT,
 531                    _("<choice value='%s'/> already given"), choice);
 532       return;
 533     }
 534
 535   strinfo_builder_append_item (state->strinfo, choice, 0);
 536   state->has_choices = TRUE;
 537 }
 538
 539 static void
 540 key_state_end_choices (KeyState  *state,
 541                        GError   **error)
 542 {
 543   if (!state->has_choices)
 544     {
 545       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 546                    _("<choices> must contain at least one <choice>"));
 547       return;
 548     }
 549
 550   key_state_check_range (state, error);
 551 }
 552
 553 static void
 554 key_state_start_aliases (KeyState  *state,
 555                          GError   **error)
 556 {
 557   if (state->has_aliases)
 558     g_set_error_literal (error, G_MARKUP_ERROR,
 559                          G_MARKUP_ERROR_INVALID_CONTENT,
 560                          _("<aliases> already specified for this key"));
 561   else if (!state->is_flags && !state->is_enum && !state->has_choices)
 562     g_set_error_literal (error, G_MARKUP_ERROR,
 563                          G_MARKUP_ERROR_INVALID_CONTENT,
 564                          _("<aliases> can only be specified for keys with "
 565                          "enumerated or flags types or after <choices>"));
 566 }
 567
 568 static void
 569 key_state_add_alias (KeyState     *state,
 570                      const gchar  *alias,
 571                      const gchar  *target,
 572                      GError      **error)
 573 {
 574   if (strinfo_builder_contains (state->strinfo, alias))
 575     {
 576       if (strinfo_is_string_valid ((guint32 *) state->strinfo->str,
 577                                    state->strinfo->len / 4,
 578                                    alias))
 579         {
 580           if (state->is_enum)
 581             g_set_error (error, G_MARKUP_ERROR,
 582                          G_MARKUP_ERROR_INVALID_CONTENT,
 583                          _("<alias value='%s'/> given when “%s” is already "
 584                          "a member of the enumerated type"), alias, alias);
 585
 586           else
 587             g_set_error (error, G_MARKUP_ERROR,
 588                          G_MARKUP_ERROR_INVALID_CONTENT,
 589                          _("<alias value='%s'/> given when "
 590                          "<choice value='%s'/> was already given"),
 591                          alias, alias);
 592         }
 593
 594       else
 595         g_set_error (error, G_MARKUP_ERROR,
 596                      G_MARKUP_ERROR_INVALID_CONTENT,
 597                      _("<alias value='%s'/> already specified"), alias);
 598
 599       return;
 600     }
 601
 602   if (!strinfo_builder_append_alias (state->strinfo, alias, target))
 603     {
 604       g_set_error (error, G_MARKUP_ERROR,
 605                    G_MARKUP_ERROR_INVALID_CONTENT,
 606                    state->is_enum ?
 607                      _("alias target “%s” is not in enumerated type") :
 608                      _("alias target “%s” is not in <choices>"),
 609                    target);
 610       return;
 611     }
 612
 613   state->has_aliases = TRUE;
 614 }
 615
 616 static void
 617 key_state_end_aliases (KeyState  *state,
 618                        GError   **error)
 619 {
 620   if (!state->has_aliases)
 621     {
 622       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 623                    _("<aliases> must contain at least one <alias>"));
 624       return;
 625     }
 626 }
 627
 628 static gboolean
 629 key_state_check (KeyState  *state,
 630                  GError   **error)
 631 {
 632   if (state->checked)
 633     return TRUE;
 634
 635   return state->checked = TRUE;
 636 }
 637
 638 static GVariant *
 639 key_state_serialise (KeyState *state)
 640 {
 641   if (state->serialised == NULL)
 642     {
 643       if (state->child_schema)
 644         {
 645           state->serialised = g_variant_new_string (state->child_schema);
 646         }
 647
 648       else
 649         {
 650           GVariantBuilder builder;
 651
 652           g_assert (key_state_check (state, NULL));
 653
 654           g_variant_builder_init (&builder, G_VARIANT_TYPE_TUPLE);
 655
 656           /* default value */
 657           g_variant_builder_add_value (&builder, state->default_value);
 658
 659           /* translation */
 660           if (state->l10n)
 661             {
 662               /* We are going to store the untranslated default for
 663                * runtime translation according to the current locale.
 664                * We need to strip leading and trailing whitespace from
 665                * the string so that it's exactly the same as the one
 666                * that ended up in the .po file for translation.
 667                *
 668                * We want to do this so that
 669                *
 670                *   <default l10n='messages'>
 671                *     ['a', 'b', 'c']
 672                *   </default>
 673                *
 674                * ends up in the .po file like "['a', 'b', 'c']",
 675                * omitting the extra whitespace at the start and end.
 676                */
 677               strip_string (state->unparsed_default_value);
 678
 679               if (state->l10n_context)
 680                 {
 681                   gint len;
 682
 683                   /* Contextified messages are supported by prepending
 684                    * the context, followed by '\004' to the start of the
 685                    * message string.  We do that here to save GSettings
 686                    * the work later on.
 687                    */
 688                   len = strlen (state->l10n_context);
 689                   state->l10n_context[len] = '\004';
 690                   g_string_prepend_len (state->unparsed_default_value,
 691                                         state->l10n_context, len + 1);
 692                   g_free (state->l10n_context);
 693                   state->l10n_context = NULL;
 694                 }
 695
 696               g_variant_builder_add (&builder, "(y(y&s))", 'l', state->l10n,
 697                                      state->unparsed_default_value->str);
 698               g_string_free (state->unparsed_default_value, TRUE);
 699               state->unparsed_default_value = NULL;
 700             }
 701
 702           /* choice, aliases, enums */
 703           if (state->strinfo->len)
 704             {
 705               GVariant *array;
 706               guint32 *words;
 707               gpointer data;
 708               gsize size;
 709               gint i;
 710
 711               data = state->strinfo->str;
 712               size = state->strinfo->len;
 713
 714               words = data;
 715               for (i = 0; i < size / sizeof (guint32); i++)
 716                 words[i] = GUINT32_TO_LE (words[i]);
 717
 718               array = g_variant_new_from_data (G_VARIANT_TYPE ("au"),
 719                                                data, size, TRUE,
 720                                                g_free, data);
 721
 722               g_string_free (state->strinfo, FALSE);
 723               state->strinfo = NULL;
 724
 725               g_variant_builder_add (&builder, "(y@au)",
 726                                      state->is_flags ? 'f' :
 727                                      state->is_enum ? 'e' : 'c',
 728                                      array);
 729             }
 730
 731           /* range */
 732           if (state->minimum || state->maximum)
 733             g_variant_builder_add (&builder, "(y(**))", 'r',
 734                                    state->minimum, state->maximum);
 735
 736           /* per-desktop overrides */
 737           if (state->desktop_overrides)
 738             g_variant_builder_add (&builder, "(y@a{sv})", 'd',
 739                                    g_variant_dict_end (state->desktop_overrides));
 740
 741           state->serialised = g_variant_builder_end (&builder);
 742         }
 743
 744       g_variant_ref_sink (state->serialised);
 745     }
 746
 747   return g_variant_ref (state->serialised);
 748 }
 749
 750 static void
 751 key_state_free (gpointer data)
 752 {
 753   KeyState *state = data;
 754
 755   g_free (state->child_schema);
 756
 757   if (state->type)
 758     g_variant_type_free (state->type);
 759
 760   g_free (state->l10n_context);
 761
 762   if (state->unparsed_default_value)
 763     g_string_free (state->unparsed_default_value, TRUE);
 764
 765   if (state->default_value)
 766     g_variant_unref (state->default_value);
 767
 768   if (state->strinfo)
 769     g_string_free (state->strinfo, TRUE);
 770
 771   if (state->minimum)
 772     g_variant_unref (state->minimum);
 773
 774   if (state->maximum)
 775     g_variant_unref (state->maximum);
 776
 777   if (state->serialised)
 778     g_variant_unref (state->serialised);
 779
 780   if (state->desktop_overrides)
 781     g_variant_dict_unref (state->desktop_overrides);
 782
 783   g_slice_free (KeyState, state);
 784 }
 785
 786 /* Key name validity {{{1 */
 787 static gboolean allow_any_name = FALSE;
 788
 789 static gboolean
 790 is_valid_keyname (const gchar  *key,
 791                   GError      **error)
 792 {
 793   gint i;
 794
 795   if (key[0] == '\0')
 796     {
 797       g_set_error_literal (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 798                            _("Empty names are not permitted"));
 799       return FALSE;
 800     }
 801
 802   if (allow_any_name)
 803     return TRUE;
 804
 805   if (!g_ascii_islower (key[0]))
 806     {
 807       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 808                    _("Invalid name “%s”: names must begin "
 809                      "with a lowercase letter"), key);
 810       return FALSE;
 811     }
 812
 813   for (i = 1; key[i]; i++)
 814     {
 815       if (key[i] != '-' &&
 816           !g_ascii_islower (key[i]) &&
 817           !g_ascii_isdigit (key[i]))
 818         {
 819           g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 820                        _("Invalid name “%s”: invalid character “%c”; "
 821                          "only lowercase letters, numbers and hyphen (“-”) "
 822                          "are permitted"), key, key[i]);
 823           return FALSE;
 824         }
 825
 826       if (key[i] == '-' && key[i + 1] == '-')
 827         {
 828           g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 829                        _("Invalid name “%s”: two successive hyphens (“--”) "
 830                          "are not permitted"), key);
 831           return FALSE;
 832         }
 833     }
 834
 835   if (key[i - 1] == '-')
 836     {
 837       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 838                    _("Invalid name “%s”: the last character may not be a "
 839                      "hyphen (“-”)"), key);
 840       return FALSE;
 841     }
 842
 843   if (i > 1024)
 844     {
 845       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
 846                    _("Invalid name “%s”: maximum length is 1024"), key);
 847       return FALSE;
 848     }
 849
 850   return TRUE;
 851 }
 852
 853 /* Handling of <schema> {{{1 */
 854 typedef struct _SchemaState SchemaState;
 855 struct _SchemaState
 856 {
 857   SchemaState *extends;
 858
 859   gchar       *path;
 860   gchar       *gettext_domain;
 861   gchar       *extends_name;
 862   gchar       *list_of;
 863
 864   GHashTable  *keys;
 865 };
 866
 867 static SchemaState *
 868 schema_state_new (const gchar  *path,
 869                   const gchar  *gettext_domain,
 870                   SchemaState  *extends,
 871                   const gchar  *extends_name,
 872                   const gchar  *list_of)
 873 {
 874   SchemaState *state;
 875
 876   state = g_slice_new (SchemaState);
 877   state->path = g_strdup (path);
 878   state->gettext_domain = g_strdup (gettext_domain);
 879   state->extends = extends;
 880   state->extends_name = g_strdup (extends_name);
 881   state->list_of = g_strdup (list_of);
 882   state->keys = g_hash_table_new_full (g_str_hash, g_str_equal,
 883                                        g_free, key_state_free);
 884
 885   return state;
 886 }
 887
 888 static void
 889 schema_state_free (gpointer data)
 890 {
 891   SchemaState *state = data;
 892
 893   g_free (state->path);
 894   g_free (state->gettext_domain);
 895   g_free (state->extends_name);
 896   g_free (state->list_of);
 897   g_hash_table_unref (state->keys);
 898   g_slice_free (SchemaState, state);
 899 }
 900
 901 static void
 902 schema_state_add_child (SchemaState  *state,
 903                         const gchar  *name,
 904                         const gchar  *schema,
 905                         GError      **error)
 906 {
 907   gchar *childname;
 908
 909   if (!is_valid_keyname (name, error))
 910     return;
 911
 912   childname = g_strconcat (name, "/", NULL);
 913
 914   if (g_hash_table_lookup (state->keys, childname))
 915     {
 916       g_set_error (error, G_MARKUP_ERROR,
 917                    G_MARKUP_ERROR_INVALID_CONTENT,
 918                    _("<child name='%s'> already specified"), name);
 919       return;
 920     }
 921
 922   g_hash_table_insert (state->keys, childname,
 923                        key_state_new_child (schema));
 924 }
 925
 926 static KeyState *
 927 schema_state_add_key (SchemaState  *state,
 928                       GHashTable   *enum_table,
 929                       GHashTable   *flags_table,
 930                       const gchar  *name,
 931                       const gchar  *type_string,
 932                       const gchar  *enum_type,
 933                       const gchar  *flags_type,
 934                       GError      **error)
 935 {
 936   SchemaState *node;
 937   GString *strinfo;
 938   KeyState *key;
 939
 940   if (state->list_of)
 941     {
 942       g_set_error_literal (error, G_MARKUP_ERROR,
 943                            G_MARKUP_ERROR_INVALID_CONTENT,
 944                            _("Cannot add keys to a “list-of” schema"));
 945       return NULL;
 946     }
 947
 948   if (!is_valid_keyname (name, error))
 949     return NULL;
 950
 951   if (g_hash_table_lookup (state->keys, name))
 952     {
 953       g_set_error (error, G_MARKUP_ERROR,
 954                    G_MARKUP_ERROR_INVALID_CONTENT,
 955                    _("<key name='%s'> already specified"), name);
 956       return NULL;
 957     }
 958
 959   for (node = state; node; node = node->extends)
 960     if (node->extends)
 961       {
 962         KeyState *shadow;
 963
 964         shadow = g_hash_table_lookup (node->extends->keys, name);
 965
 966         /* in case of <key> <override> <key> make sure we report the
 967          * location of the original <key>, not the <override>.
 968          */
 969         if (shadow && !shadow->is_override)
 970           {
 971             g_set_error (error, G_MARKUP_ERROR,
 972                          G_MARKUP_ERROR_INVALID_CONTENT,
 973                          _("<key name='%s'> shadows <key name='%s'> in "
 974                            "<schema id='%s'>; use <override> to modify value"),
 975                          name, name, node->extends_name);
 976             return NULL;
 977           }
 978       }
 979
 980   if ((type_string != NULL) + (enum_type != NULL) + (flags_type != NULL) != 1)
 981     {
 982       g_set_error (error, G_MARKUP_ERROR,
 983                    G_MARKUP_ERROR_MISSING_ATTRIBUTE,
 984                    _("Exactly one of “type”, “enum” or “flags” must "
 985                      "be specified as an attribute to <key>"));
 986       return NULL;
 987     }
 988
 989   if (type_string == NULL) /* flags or enums was specified */
 990     {
 991       EnumState *enum_state;
 992
 993       if (enum_type)
 994         enum_state = g_hash_table_lookup (enum_table, enum_type);
 995       else
 996         enum_state = g_hash_table_lookup (flags_table, flags_type);
 997
 998
 999       if (enum_state == NULL)
1000         {
1001           g_set_error (error, G_MARKUP_ERROR,
1002                        G_MARKUP_ERROR_INVALID_CONTENT,
1003                        _("<%s id='%s'> not (yet) defined."),
1004                        flags_type ? "flags"    : "enum",
1005                        flags_type ? flags_type : enum_type);
1006           return NULL;
1007         }
1008
1009       type_string = flags_type ? "as" : "s";
1010       strinfo = enum_state->strinfo;
1011     }
1012   else
1013     {
1014       if (!g_variant_type_string_is_valid (type_string))
1015         {
1016           g_set_error (error, G_MARKUP_ERROR,
1017                        G_MARKUP_ERROR_INVALID_CONTENT,
1018                        _("Invalid GVariant type string “%s”"), type_string);
1019           return NULL;
1020         }
1021
1022       strinfo = NULL;
1023     }
1024
1025   key = key_state_new (type_string, state->gettext_domain,
1026                        enum_type != NULL, flags_type != NULL, strinfo);
1027   g_hash_table_insert (state->keys, g_strdup (name), key);
1028
1029   return key;
1030 }
1031
1032 static void
1033 schema_state_add_override (SchemaState  *state,
1034                            KeyState    **key_state,
1035                            GString     **string,
1036                            const gchar  *key,
1037                            const gchar  *l10n,
1038                            const gchar  *context,
1039                            GError      **error)
1040 {
1041   SchemaState *parent;
1042   KeyState *original;
1043
1044   if (state->extends == NULL)
1045     {
1046       g_set_error_literal (error, G_MARKUP_ERROR,
1047                            G_MARKUP_ERROR_INVALID_CONTENT,
1048                            _("<override> given but schema isn’t "
1049                              "extending anything"));
1050       return;
1051     }
1052
1053   for (parent = state->extends; parent; parent = parent->extends)
1054     if ((original = g_hash_table_lookup (parent->keys, key)))
1055       break;
1056
1057   if (original == NULL)
1058     {
1059       g_set_error (error, G_MARKUP_ERROR,
1060                    G_MARKUP_ERROR_INVALID_CONTENT,
1061                    _("No <key name='%s'> to override"), key);
1062       return;
1063     }
1064
1065   if (g_hash_table_lookup (state->keys, key))
1066     {
1067       g_set_error (error, G_MARKUP_ERROR,
1068                    G_MARKUP_ERROR_INVALID_CONTENT,
1069                    _("<override name='%s'> already specified"), key);
1070       return;
1071     }
1072
1073   *key_state = key_state_override (original, state->gettext_domain);
1074   *string = key_state_start_default (*key_state, l10n, context, error);
1075   g_hash_table_insert (state->keys, g_strdup (key), *key_state);
1076 }
1077
1078 static void
1079 override_state_end (KeyState **key_state,
1080                     GString  **string,
1081                     GError   **error)
1082 {
1083   key_state_end_default (*key_state, string, error);
1084   *key_state = NULL;
1085 }
1086
1087 /* Handling of toplevel state {{{1 */
1088 typedef struct
1089 {
1090   gboolean     strict;                  /* TRUE if --strict was given */
1091
1092   GHashTable  *schema_table;            /* string -> SchemaState */
1093   GHashTable  *flags_table;             /* string -> EnumState */
1094   GHashTable  *enum_table;              /* string -> EnumState */
1095
1096   GSList      *this_file_schemas;       /* strings: <schema>s in this file */
1097   GSList      *this_file_flagss;        /* strings: <flags>s in this file */
1098   GSList      *this_file_enums;         /* strings: <enum>s in this file */
1099
1100   gchar       *schemalist_domain;       /* the <schemalist> gettext domain */
1101
1102   SchemaState *schema_state;            /* non-NULL when inside <schema> */
1103   KeyState    *key_state;               /* non-NULL when inside <key> */
1104   EnumState   *enum_state;              /* non-NULL when inside <enum> */
1105
1106   GString     *string;                  /* non-NULL when accepting text */
1107 } ParseState;
1108
1109 static gboolean
1110 is_subclass (const gchar *class_name,
1111              const gchar *possible_parent,
1112              GHashTable  *schema_table)
1113 {
1114   SchemaState *class;
1115
1116   if (strcmp (class_name, possible_parent) == 0)
1117     return TRUE;
1118
1119   class = g_hash_table_lookup (schema_table, class_name);
1120   g_assert (class != NULL);
1121
1122   return class->extends_name &&
1123          is_subclass (class->extends_name, possible_parent, schema_table);
1124 }
1125
1126 static void
1127 parse_state_start_schema (ParseState  *state,
1128                           const gchar  *id,
1129                           const gchar  *path,
1130                           const gchar  *gettext_domain,
1131                           const gchar  *extends_name,
1132                           const gchar  *list_of,
1133                           GError      **error)
1134 {
1135   SchemaState *extends;
1136   gchar *my_id;
1137
1138   if (g_hash_table_lookup (state->schema_table, id))
1139     {
1140       g_set_error (error, G_MARKUP_ERROR,
1141                    G_MARKUP_ERROR_INVALID_CONTENT,
1142                    _("<schema id='%s'> already specified"), id);
1143       return;
1144     }
1145
1146   if (extends_name)
1147     {
1148       extends = g_hash_table_lookup (state->schema_table, extends_name);
1149
1150       if (extends == NULL)
1151         {
1152           g_set_error (error, G_MARKUP_ERROR,
1153                        G_MARKUP_ERROR_INVALID_CONTENT,
1154                        _("<schema id='%s'> extends not yet existing "
1155                          "schema “%s”"), id, extends_name);
1156           return;
1157         }
1158     }
1159   else
1160     extends = NULL;
1161
1162   if (list_of)
1163     {
1164       SchemaState *tmp;
1165
1166       if (!(tmp = g_hash_table_lookup (state->schema_table, list_of)))
1167         {
1168           g_set_error (error, G_MARKUP_ERROR,
1169                        G_MARKUP_ERROR_INVALID_CONTENT,
1170                        _("<schema id='%s'> is list of not yet existing "
1171                          "schema “%s”"), id, list_of);
1172           return;
1173         }
1174
1175       if (tmp->path)
1176         {
1177           g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1178                        _("Cannot be a list of a schema with a path"));
1179           return;
1180         }
1181     }
1182
1183   if (extends)
1184     {
1185       if (extends->path)
1186         {
1187           g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1188                        _("Cannot extend a schema with a path"));
1189           return;
1190         }
1191
1192       if (list_of)
1193         {
1194           if (extends->list_of == NULL)
1195             {
1196               g_set_error (error, G_MARKUP_ERROR,
1197                            G_MARKUP_ERROR_INVALID_CONTENT,
1198                            _("<schema id='%s'> is a list, extending "
1199                              "<schema id='%s'> which is not a list"),
1200                            id, extends_name);
1201               return;
1202             }
1203
1204           if (!is_subclass (list_of, extends->list_of, state->schema_table))
1205             {
1206               g_set_error (error, G_MARKUP_ERROR,
1207                            G_MARKUP_ERROR_INVALID_CONTENT,
1208                            _("<schema id='%s' list-of='%s'> extends <schema "
1209                              "id='%s' list-of='%s'> but “%s” does not "
1210                              "extend “%s”"), id, list_of, extends_name,
1211                            extends->list_of, list_of, extends->list_of);
1212               return;
1213             }
1214         }
1215       else
1216         /* by default we are a list of the same thing that the schema
1217          * we are extending is a list of (which might be nothing)
1218          */
1219         list_of = extends->list_of;
1220     }
1221
1222   if (path && !(g_str_has_prefix (path, "/") && g_str_has_suffix (path, "/")))
1223     {
1224       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1225                    _("A path, if given, must begin and end with a slash"));
1226       return;
1227     }
1228
1229   if (path && list_of && !g_str_has_suffix (path, ":/"))
1230     {
1231       g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1232                    _("The path of a list must end with “:/”"));
1233       return;
1234     }
1235
1236   if (path && (g_str_has_prefix (path, "/apps/") ||
1237                g_str_has_prefix (path, "/desktop/") ||
1238                g_str_has_prefix (path, "/system/")))
1239     {
1240       gchar *message = NULL;
1241       message = g_strdup_printf (_("Warning: Schema “%s” has path “%s”.  "
1242                                    "Paths starting with "
1243                                    "“/apps/”, “/desktop/” or “/system/” are deprecated."),
1244                                  id, path);
1245       g_printerr ("%s\n", message);
1246       g_free (message);
1247     }
1248
1249   state->schema_state = schema_state_new (path, gettext_domain,
1250                                           extends, extends_name, list_of);
1251
1252   my_id = g_strdup (id);
1253   state->this_file_schemas = g_slist_prepend (state->this_file_schemas, my_id);
1254   g_hash_table_insert (state->schema_table, my_id, state->schema_state);
1255 }
1256
1257 static void
1258 parse_state_start_enum (ParseState   *state,
1259                         const gchar  *id,
1260                         gboolean      is_flags,
1261                         GError      **error)
1262 {
1263   GSList **list = is_flags ? &state->this_file_flagss : &state->this_file_enums;
1264   GHashTable *table = is_flags ? state->flags_table : state->enum_table;
1265   gchar *my_id;
1266
1267   if (g_hash_table_lookup (table, id))
1268     {
1269       g_set_error (error, G_MARKUP_ERROR,
1270                    G_MARKUP_ERROR_INVALID_CONTENT,
1271                    _("<%s id='%s'> already specified"),
1272                    is_flags ? "flags" : "enum", id);
1273       return;
1274     }
1275
1276   state->enum_state = enum_state_new (is_flags);
1277
1278   my_id = g_strdup (id);
1279   *list = g_slist_prepend (*list, my_id);
1280   g_hash_table_insert (table, my_id, state->enum_state);
1281 }
1282
1283 /* GMarkup Parser Functions {{{1 */
1284
1285 /* Start element {{{2 */
1286 static void
1287 start_element (GMarkupParseContext  *context,
1288                const gchar          *element_name,
1289                const gchar         **attribute_names,
1290                const gchar         **attribute_values,
1291                gpointer              user_data,
1292                GError              **error)
1293 {
1294   ParseState *state = user_data;
1295   const GSList *element_stack;
1296   const gchar *container;
1297
1298   element_stack = g_markup_parse_context_get_element_stack (context);
1299   container = element_stack->next ? element_stack->next->data : NULL;
1300
1301 #define COLLECT(first, ...) \
1302   g_markup_collect_attributes (element_name,                                 \
1303                                attribute_names, attribute_values, error,     \
1304                                first, __VA_ARGS__, G_MARKUP_COLLECT_INVALID)
1305 #define OPTIONAL   G_MARKUP_COLLECT_OPTIONAL
1306 #define STRDUP     G_MARKUP_COLLECT_STRDUP
1307 #define STRING     G_MARKUP_COLLECT_STRING
1308 #define NO_ATTRS()  COLLECT (G_MARKUP_COLLECT_INVALID, NULL)
1309
1310   /* Toplevel items {{{3 */
1311   if (container == NULL)
1312     {
1313       if (strcmp (element_name, "schemalist") == 0)
1314         {
1315           COLLECT (OPTIONAL | STRDUP,
1316                    "gettext-domain",
1317                    &state->schemalist_domain);
1318           return;
1319         }
1320     }
1321
1322
1323   /* children of <schemalist> {{{3 */
1324   else if (strcmp (container, "schemalist") == 0)
1325     {
1326       if (strcmp (element_name, "schema") == 0)
1327         {
1328           const gchar *id, *path, *gettext_domain, *extends, *list_of;
1329           if (COLLECT (STRING, "id", &id,
1330                        OPTIONAL | STRING, "path", &path,
1331                        OPTIONAL | STRING, "gettext-domain", &gettext_domain,
1332                        OPTIONAL | STRING, "extends", &extends,
1333                        OPTIONAL | STRING, "list-of", &list_of))
1334             parse_state_start_schema (state, id, path,
1335                                       gettext_domain ? gettext_domain
1336                                                      : state->schemalist_domain,
1337                                       extends, list_of, error);
1338           return;
1339         }
1340
1341       else if (strcmp (element_name, "enum") == 0)
1342         {
1343           const gchar *id;
1344           if (COLLECT (STRING, "id", &id))
1345             parse_state_start_enum (state, id, FALSE, error);
1346           return;
1347         }
1348
1349       else if (strcmp (element_name, "flags") == 0)
1350         {
1351           const gchar *id;
1352           if (COLLECT (STRING, "id", &id))
1353             parse_state_start_enum (state, id, TRUE, error);
1354           return;
1355         }
1356     }
1357
1358
1359   /* children of <schema> {{{3 */
1360   else if (strcmp (container, "schema") == 0)
1361     {
1362       if (strcmp (element_name, "key") == 0)
1363         {
1364           const gchar *name, *type_string, *enum_type, *flags_type;
1365
1366           if (COLLECT (STRING,            "name",  &name,
1367                        OPTIONAL | STRING, "type",  &type_string,
1368                        OPTIONAL | STRING, "enum",  &enum_type,
1369                        OPTIONAL | STRING, "flags", &flags_type))
1370
1371             state->key_state = schema_state_add_key (state->schema_state,
1372                                                      state->enum_table,
1373                                                      state->flags_table,
1374                                                      name, type_string,
1375                                                      enum_type, flags_type,
1376                                                      error);
1377           return;
1378         }
1379       else if (strcmp (element_name, "child") == 0)
1380         {
1381           const gchar *name, *schema;
1382
1383           if (COLLECT (STRING, "name", &name, STRING, "schema", &schema))
1384             schema_state_add_child (state->schema_state,
1385                                     name, schema, error);
1386           return;
1387         }
1388       else if (strcmp (element_name, "override") == 0)
1389         {
1390           const gchar *name, *l10n, *context;
1391
1392           if (COLLECT (STRING,            "name",    &name,
1393                        OPTIONAL | STRING, "l10n",    &l10n,
1394                        OPTIONAL | STRING, "context", &context))
1395             schema_state_add_override (state->schema_state,
1396                                        &state->key_state, &state->string,
1397                                        name, l10n, context, error);
1398           return;
1399         }
1400     }
1401
1402   /* children of <key> {{{3 */
1403   else if (strcmp (container, "key") == 0)
1404     {
1405       if (strcmp (element_name, "default") == 0)
1406         {
1407           const gchar *l10n, *context;
1408           if (COLLECT (STRING | OPTIONAL, "l10n",    &l10n,
1409                        STRING | OPTIONAL, "context", &context))
1410             state->string = key_state_start_default (state->key_state,
1411                                                      l10n, context, error);
1412           return;
1413         }
1414
1415       else if (strcmp (element_name, "summary") == 0)
1416         {
1417           if (NO_ATTRS ())
1418             {
1419               if (state->key_state->summary_seen && state->strict)
1420                 g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1421                              _("Only one <%s> element allowed inside <%s>"),
1422                              element_name, container);
1423               else
1424                 state->string = g_string_new (NULL);
1425
1426               state->key_state->summary_seen = TRUE;
1427             }
1428           return;
1429         }
1430
1431       else if (strcmp (element_name, "description") == 0)
1432         {
1433           if (NO_ATTRS ())
1434             {
1435               if (state->key_state->description_seen && state->strict)
1436                 g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1437                              _("Only one <%s> element allowed inside <%s>"),
1438                              element_name, container);
1439               else
1440                 state->string = g_string_new (NULL);
1441
1442             state->key_state->description_seen = TRUE;
1443             }
1444           return;
1445         }
1446
1447       else if (strcmp (element_name, "range") == 0)
1448         {
1449           const gchar *min, *max;
1450           if (COLLECT (STRING | OPTIONAL, "min", &min,
1451                        STRING | OPTIONAL, "max", &max))
1452             key_state_set_range (state->key_state, min, max, error);
1453           return;
1454         }
1455
1456       else if (strcmp (element_name, "choices") == 0)
1457         {
1458           if (NO_ATTRS ())
1459             key_state_start_choices (state->key_state, error);
1460           return;
1461         }
1462
1463       else if (strcmp (element_name, "aliases") == 0)
1464         {
1465           if (NO_ATTRS ())
1466             key_state_start_aliases (state->key_state, error);
1467           return;
1468         }
1469     }
1470
1471
1472   /* children of <choices> {{{3 */
1473   else if (strcmp (container, "choices") == 0)
1474     {
1475       if (strcmp (element_name, "choice") == 0)
1476         {
1477           const gchar *value;
1478           if (COLLECT (STRING, "value", &value))
1479             key_state_add_choice (state->key_state, value, error);
1480           return;
1481         }
1482     }
1483
1484
1485   /* children of <aliases> {{{3 */
1486   else if (strcmp (container, "aliases") == 0)
1487     {
1488       if (strcmp (element_name, "alias") == 0)
1489         {
1490           const gchar *value, *target;
1491           if (COLLECT (STRING, "value", &value, STRING, "target", &target))
1492             key_state_add_alias (state->key_state, value, target, error);
1493           return;
1494         }
1495     }
1496
1497
1498   /* children of <enum> {{{3 */
1499   else if (strcmp (container, "enum") == 0 ||
1500            strcmp (container, "flags") == 0)
1501     {
1502       if (strcmp (element_name, "value") == 0)
1503         {
1504           const gchar *nick, *valuestr;
1505           if (COLLECT (STRING, "nick", &nick,
1506                        STRING, "value", &valuestr))
1507             enum_state_add_value (state->enum_state, nick, valuestr, error);
1508           return;
1509         }
1510     }
1511   /* 3}}} */
1512
1513   if (container)
1514     g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
1515                  _("Element <%s> not allowed inside <%s>"),
1516                  element_name, container);
1517   else
1518     g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_UNKNOWN_ELEMENT,
1519                  _("Element <%s> not allowed at the top level"), element_name);
1520 }
1521 /* 2}}} */
1522 /* End element {{{2 */
1523
1524 static void
1525 key_state_end (KeyState **state_ptr,
1526                GError   **error)
1527 {
1528   KeyState *state;
1529
1530   state = *state_ptr;
1531   *state_ptr = NULL;
1532
1533   if (state->default_value == NULL)
1534     {
1535       g_set_error_literal (error,
1536                            G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1537                            _("Element <default> is required in <key>"));
1538       return;
1539     }
1540 }
1541
1542 static void
1543 schema_state_end (SchemaState **state_ptr,
1544                   GError      **error)
1545 {
1546   *state_ptr = NULL;
1547 }
1548
1549 static void
1550 end_element (GMarkupParseContext  *context,
1551              const gchar          *element_name,
1552              gpointer              user_data,
1553              GError              **error)
1554 {
1555   ParseState *state = user_data;
1556
1557   if (strcmp (element_name, "schemalist") == 0)
1558     {
1559       g_free (state->schemalist_domain);
1560       state->schemalist_domain = NULL;
1561     }
1562
1563   else if (strcmp (element_name, "enum") == 0 ||
1564            strcmp (element_name, "flags") == 0)
1565     enum_state_end (&state->enum_state, error);
1566
1567   else if (strcmp (element_name, "schema") == 0)
1568     schema_state_end (&state->schema_state, error);
1569
1570   else if (strcmp (element_name, "override") == 0)
1571     override_state_end (&state->key_state, &state->string, error);
1572
1573   else if (strcmp (element_name, "key") == 0)
1574     key_state_end (&state->key_state, error);
1575
1576   else if (strcmp (element_name, "default") == 0)
1577     key_state_end_default (state->key_state, &state->string, error);
1578
1579   else if (strcmp (element_name, "choices") == 0)
1580     key_state_end_choices (state->key_state, error);
1581
1582   else if (strcmp (element_name, "aliases") == 0)
1583     key_state_end_aliases (state->key_state, error);
1584
1585   if (state->string)
1586     {
1587       g_string_free (state->string, TRUE);
1588       state->string = NULL;
1589     }
1590 }
1591 /* Text {{{2 */
1592 static void
1593 text (GMarkupParseContext  *context,
1594       const gchar          *text,
1595       gsize                 text_len,
1596       gpointer              user_data,
1597       GError              **error)
1598 {
1599   ParseState *state = user_data;
1600
1601   if (state->string)
1602     {
1603       /* we are expecting a string, so store the text data.
1604        *
1605        * we store the data verbatim here and deal with whitespace
1606        * later on.  there are two reasons for that:
1607        *
1608        *  1) whitespace is handled differently depending on the tag
1609        *     type.
1610        *
1611        *  2) we could do leading whitespace removal by refusing to
1612        *     insert it into state->string if it's at the start, but for
1613        *     trailing whitespace, we have no idea if there is another
1614        *     text() call coming or not.
1615        */
1616       g_string_append_len (state->string, text, text_len);
1617     }
1618   else
1619     {
1620       /* string is not expected: accept (and ignore) pure whitespace */
1621       gsize i;
1622
1623       for (i = 0; i < text_len; i++)
1624         if (!g_ascii_isspace (text[i]))
1625           {
1626             g_set_error (error, G_MARKUP_ERROR, G_MARKUP_ERROR_INVALID_CONTENT,
1627                          _("Text may not appear inside <%s>"),
1628                          g_markup_parse_context_get_element (context));
1629             break;
1630           }
1631     }
1632 }
1633
1634 /* Write to GVDB {{{1 */
1635 typedef struct
1636 {
1637   GHashTable *table;
1638   GvdbItem *root;
1639 } GvdbPair;
1640
1641 static void
1642 gvdb_pair_init (GvdbPair *pair)
1643 {
1644   pair->table = gvdb_hash_table_new (NULL, NULL);
1645   pair->root = gvdb_hash_table_insert (pair->table, "");
1646 }
1647
1648 static void
1649 gvdb_pair_clear (GvdbPair *pair)
1650 {
1651   g_hash_table_unref (pair->table);
1652 }
1653
1654 typedef struct
1655 {
1656   GHashTable *schema_table;
1657   GvdbPair root_pair;
1658 } WriteToFileData;
1659
1660 typedef struct
1661 {
1662   GHashTable *schema_table;
1663   GvdbPair pair;
1664   gboolean l10n;
1665 } OutputSchemaData;
1666
1667 static void
1668 output_key (gpointer key,
1669             gpointer value,
1670             gpointer user_data)
1671 {
1672   OutputSchemaData *data;
1673   const gchar *name;
1674   KeyState *state;
1675   GvdbItem *item;
1676   GVariant *serialised = NULL;
1677
1678   name = key;
1679   state = value;
1680   data = user_data;
1681
1682   item = gvdb_hash_table_insert (data->pair.table, name);
1683   gvdb_item_set_parent (item, data->pair.root);
1684   serialised = key_state_serialise (state);
1685   gvdb_item_set_value (item, serialised);
1686   g_variant_unref (serialised);
1687
1688   if (state->l10n)
1689     data->l10n = TRUE;
1690
1691   if (state->child_schema &&
1692       !g_hash_table_lookup (data->schema_table, state->child_schema))
1693     {
1694       gchar *message = NULL;
1695       message = g_strdup_printf (_("Warning: undefined reference to <schema id='%s'/>"),
1696                                  state->child_schema);
1697       g_printerr ("%s\n", message);
1698       g_free (message);
1699     }
1700 }
1701
1702 static void
1703 output_schema (gpointer key,
1704                gpointer value,
1705                gpointer user_data)
1706 {
1707   WriteToFileData *wtf_data = user_data;
1708   OutputSchemaData data;
1709   GvdbPair *root_pair;
1710   SchemaState *state;
1711   const gchar *id;
1712   GvdbItem *item;
1713
1714   id = key;
1715   state = value;
1716   root_pair = &wtf_data->root_pair;
1717
1718   data.schema_table = wtf_data->schema_table;
1719   gvdb_pair_init (&data.pair);
1720   data.l10n = FALSE;
1721
1722   item = gvdb_hash_table_insert (root_pair->table, id);
1723   gvdb_item_set_parent (item, root_pair->root);
1724   gvdb_item_set_hash_table (item, data.pair.table);
1725
1726   g_hash_table_foreach (state->keys, output_key, &data);
1727
1728   if (state->path)
1729     gvdb_hash_table_insert_string (data.pair.table, ".path", state->path);
1730
1731   if (state->extends_name)
1732     gvdb_hash_table_insert_string (data.pair.table, ".extends",
1733                                    state->extends_name);
1734
1735   if (state->list_of)
1736     gvdb_hash_table_insert_string (data.pair.table, ".list-of",
1737                                    state->list_of);
1738
1739   if (data.l10n)
1740     gvdb_hash_table_insert_string (data.pair.table,
1741                                    ".gettext-domain",
1742                                    state->gettext_domain);
1743
1744   gvdb_pair_clear (&data.pair);
1745 }
1746
1747 static gboolean
1748 write_to_file (GHashTable   *schema_table,
1749                const gchar  *filename,
1750                GError      **error)
1751 {
1752   WriteToFileData data;
1753   gboolean success;
1754
1755   data.schema_table = schema_table;
1756
1757   gvdb_pair_init (&data.root_pair);
1758
1759   g_hash_table_foreach (schema_table, output_schema, &data);
1760
1761   success = gvdb_table_write_contents (data.root_pair.table, filename,
1762                                        G_BYTE_ORDER != G_LITTLE_ENDIAN,
1763                                        error);
1764   g_hash_table_unref (data.root_pair.table);
1765
1766   return success;
1767 }
1768
1769 /* Parser driver {{{1 */
1770 static GHashTable *
1771 parse_gschema_files (gchar    **files,
1772                      gboolean   strict)
1773 {
1774   GMarkupParser parser = { start_element, end_element, text };
1775   ParseState state = { 0, };
1776   const gchar *filename;
1777   GError *error = NULL;
1778
1779   state.strict = strict;
1780
1781   state.enum_table = g_hash_table_new_full (g_str_hash, g_str_equal,
1782                                             g_free, enum_state_free);
1783
1784   state.flags_table = g_hash_table_new_full (g_str_hash, g_str_equal,
1785                                              g_free, enum_state_free);
1786
1787   state.schema_table = g_hash_table_new_full (g_str_hash, g_str_equal,
1788                                               g_free, schema_state_free);
1789
1790   while ((filename = *files++) != NULL)
1791     {
1792       GMarkupParseContext *context;
1793       gchar *contents;
1794       gsize size;
1795       gint line, col;
1796
1797       if (!g_file_get_contents (filename, &contents, &size, &error))
1798         {
1799           fprintf (stderr, "%s\n", error->message);
1800           g_clear_error (&error);
1801           continue;
1802         }
1803
1804       context = g_markup_parse_context_new (&parser,
1805                                             G_MARKUP_TREAT_CDATA_AS_TEXT |
1806                                             G_MARKUP_PREFIX_ERROR_POSITION |
1807                                             G_MARKUP_IGNORE_QUALIFIED,
1808                                             &state, NULL);
1809
1810
1811       if (!g_markup_parse_context_parse (context, contents, size, &error) ||
1812           !g_markup_parse_context_end_parse (context, &error))
1813         {
1814           GSList *item;
1815
1816           /* back out any changes from this file */
1817           for (item = state.this_file_schemas; item; item = item->next)
1818             g_hash_table_remove (state.schema_table, item->data);
1819
1820           for (item = state.this_file_flagss; item; item = item->next)
1821             g_hash_table_remove (state.flags_table, item->data);
1822
1823           for (item = state.this_file_enums; item; item = item->next)
1824             g_hash_table_remove (state.enum_table, item->data);
1825
1826           /* let them know */
1827           g_markup_parse_context_get_position (context, &line, &col);
1828           fprintf (stderr, "%s:%d:%d  %s.  ", filename, line, col, error->message);
1829           g_clear_error (&error);
1830
1831           if (strict)
1832             {
1833               /* Translators: Do not translate "--strict". */
1834               fprintf (stderr, _("--strict was specified; exiting.\n"));
1835               g_hash_table_unref (state.schema_table);
1836               g_hash_table_unref (state.flags_table);
1837               g_hash_table_unref (state.enum_table);
1838
1839               g_free (contents);
1840
1841               return NULL;
1842             }
1843           else
1844             fprintf (stderr, _("This entire file has been ignored.\n"));
1845         }
1846
1847       /* cleanup */
1848       g_free (contents);
1849       g_markup_parse_context_free (context);
1850       g_slist_free (state.this_file_schemas);
1851       g_slist_free (state.this_file_flagss);
1852       g_slist_free (state.this_file_enums);
1853       state.this_file_schemas = NULL;
1854       state.this_file_flagss = NULL;
1855       state.this_file_enums = NULL;
1856     }
1857
1858   g_hash_table_unref (state.flags_table);
1859   g_hash_table_unref (state.enum_table);
1860
1861   return state.schema_table;
1862 }
1863
1864 static gint
1865 compare_strings (gconstpointer a,
1866                  gconstpointer b)
1867 {
1868   gchar *one = *(gchar **) a;
1869   gchar *two = *(gchar **) b;
1870   gint cmp;
1871
1872   cmp = g_str_has_suffix (two, ".enums.xml") -
1873         g_str_has_suffix (one, ".enums.xml");
1874
1875   if (!cmp)
1876     cmp = strcmp (one, two);
1877
1878   return cmp;
1879 }
1880
1881 static gboolean
1882 set_overrides (GHashTable  *schema_table,
1883                gchar      **files,
1884                gboolean     strict)
1885 {
1886   const gchar *filename;
1887   GError *error = NULL;
1888
1889   while ((filename = *files++))
1890     {
1891       GKeyFile *key_file;
1892       gchar **groups;
1893       gint i;
1894
1895       g_debug ("Processing override file '%s'", filename);
1896
1897       key_file = g_key_file_new ();
1898       if (!g_key_file_load_from_file (key_file, filename, 0, &error))
1899         {
1900           fprintf (stderr, "%s: %s.  ", filename, error->message);
1901           g_key_file_free (key_file);
1902           g_clear_error (&error);
1903
1904           if (!strict)
1905             {
1906               fprintf (stderr, _("Ignoring this file.\n"));
1907               continue;
1908             }
1909
1910           fprintf (stderr, _("--strict was specified; exiting.\n"));
1911           return FALSE;
1912         }
1913
1914       groups = g_key_file_get_groups (key_file, NULL);
1915
1916       for (i = 0; groups[i]; i++)
1917         {
1918           const gchar *group = groups[i];
1919           const gchar *schema_name;
1920           const gchar *desktop_id;
1921           SchemaState *schema;
1922           gchar **pieces;
1923           gchar **keys;
1924           gint j;
1925
1926           pieces = g_strsplit (group, ":", 2);
1927           schema_name = pieces[0];
1928           desktop_id = pieces[1];
1929
1930           g_debug ("Processing group '%s' (schema '%s', %s)",
1931                    group, schema_name, desktop_id ? desktop_id : "all desktops");
1932
1933           schema = g_hash_table_lookup (schema_table, schema_name);
1934
1935           if (schema == NULL)
1936             {
1937               /* Having the schema not be installed is expected to be a
1938                * common case.  Don't even emit an error message about
1939                * that.
1940                */
1941               g_strfreev (pieces);
1942               continue;
1943             }
1944
1945           keys = g_key_file_get_keys (key_file, group, NULL, NULL);
1946           g_assert (keys != NULL);
1947
1948           for (j = 0; keys[j]; j++)
1949             {
1950               const gchar *key = keys[j];
1951               KeyState *state;
1952               GVariant *value;
1953               gchar *string;
1954
1955               state = g_hash_table_lookup (schema->keys, key);
1956
1957               if (state == NULL)
1958                 {
1959                   fprintf (stderr, _("No such key “%s” in schema “%s” as "
1960                                      "specified in override file “%s”"),
1961                            key, group, filename);
1962
1963                   if (!strict)
1964                     {
1965                       fprintf (stderr, _("; ignoring override for this key.\n"));
1966                       continue;
1967                     }
1968
1969                   fprintf (stderr, _(" and --strict was specified; exiting.\n"));
1970                   g_key_file_free (key_file);
1971                   g_strfreev (pieces);
1972                   g_strfreev (groups);
1973                   g_strfreev (keys);
1974
1975                   return FALSE;
1976                 }
1977
1978               if (desktop_id != NULL && state->l10n)
1979                 {
1980                   /* Let's avoid the n*m case of per-desktop localised
1981                    * default values, and just forbid it.
1982                    */
1983                   fprintf (stderr,
1984                            _("cannot provide per-desktop overrides for localised "
1985                              "key “%s” in schema “%s” (override file “%s”)"),
1986                            key, group, filename);
1987
1988                   if (!strict)
1989                     {
1990                       fprintf (stderr, _("; ignoring override for this key.\n"));
1991                       continue;
1992                     }
1993
1994                   fprintf (stderr, _(" and --strict was specified; exiting.\n"));
1995                   g_key_file_free (key_file);
1996                   g_strfreev (pieces);
1997                   g_strfreev (groups);
1998                   g_strfreev (keys);
1999
2000                   return FALSE;
2001                 }
2002
2003               string = g_key_file_get_value (key_file, group, key, NULL);
2004               g_assert (string != NULL);
2005
2006               value = g_variant_parse (state->type, string,
2007                                        NULL, NULL, &error);
2008
2009               if (value == NULL)
2010                 {
2011                   fprintf (stderr, _("error parsing key “%s” in schema “%s” "
2012                                      "as specified in override file “%s”: "
2013                                      "%s."),
2014                            key, group, filename, error->message);
2015
2016                   g_clear_error (&error);
2017                   g_free (string);
2018
2019                   if (!strict)
2020                     {
2021                       fprintf (stderr, _("Ignoring override for this key.\n"));
2022                       continue;
2023                     }
2024
2025                   fprintf (stderr, _("--strict was specified; exiting.\n"));
2026                   g_key_file_free (key_file);
2027                   g_strfreev (pieces);
2028                   g_strfreev (groups);
2029                   g_strfreev (keys);
2030
2031                   return FALSE;
2032                 }
2033
2034               if (state->minimum)
2035                 {
2036                   if (g_variant_compare (value, state->minimum) < 0 ||
2037                       g_variant_compare (value, state->maximum) > 0)
2038                     {
2039                       fprintf (stderr,
2040                                _("override for key “%s” in schema “%s” in "
2041                                  "override file “%s” is outside the range "
2042                                  "given in the schema"),
2043                                key, group, filename);
2044
2045                       g_variant_unref (value);
2046                       g_free (string);
2047
2048                       if (!strict)
2049                         {
2050                           fprintf (stderr, _("; ignoring override for this key.\n"));
2051                           continue;
2052                         }
2053
2054                       fprintf (stderr, _(" and --strict was specified; exiting.\n"));
2055                       g_key_file_free (key_file);
2056                       g_strfreev (pieces);
2057                       g_strfreev (groups);
2058                       g_strfreev (keys);
2059
2060                       return FALSE;
2061                     }
2062                 }
2063
2064               else if (state->strinfo->len)
2065                 {
2066                   if (!is_valid_choices (value, state->strinfo))
2067                     {
2068                       fprintf (stderr,
2069                                _("override for key “%s” in schema “%s” in "
2070                                  "override file “%s” is not in the list "
2071                                  "of valid choices"),
2072                                key, group, filename);
2073
2074                       g_variant_unref (value);
2075                       g_free (string);
2076
2077                       if (!strict)
2078                         {
2079                           fprintf (stderr, _("; ignoring override for this key.\n"));
2080                           continue;
2081                         }
2082
2083                       fprintf (stderr, _(" and --strict was specified; exiting.\n"));
2084                       g_key_file_free (key_file);
2085                       g_strfreev (pieces);
2086                       g_strfreev (groups);
2087                       g_strfreev (keys);
2088
2089                       return FALSE;
2090                     }
2091                 }
2092
2093               if (desktop_id != NULL)
2094                 {
2095                   if (state->desktop_overrides == NULL)
2096                     state->desktop_overrides = g_variant_dict_new (NULL);
2097
2098                   g_variant_dict_insert_value (state->desktop_overrides, desktop_id, value);
2099                   g_variant_unref (value);
2100                 }
2101               else
2102                 {
2103                   g_variant_unref (state->default_value);
2104                   state->default_value = value;
2105                 }
2106
2107               g_free (string);
2108             }
2109
2110           g_strfreev (pieces);
2111           g_strfreev (keys);
2112         }
2113
2114       g_strfreev (groups);
2115     }
2116
2117   return TRUE;
2118 }
2119
2120 int
2121 main (int argc, char **argv)
2122 {
2123   GError *error = NULL;
2124   GHashTable *table = NULL;
2125   GDir *dir = NULL;
2126   const gchar *file;
2127   const gchar *srcdir;
2128   gboolean show_version_and_exit = FALSE;
2129   gchar *targetdir = NULL;
2130   gchar *target = NULL;
2131   gboolean dry_run = FALSE;
2132   gboolean strict = FALSE;
2133   gchar **schema_files = NULL;
2134   gchar **override_files = NULL;
2135   GOptionContext *context = NULL;
2136   gint retval;
2137   GOptionEntry entries[] = {
2138     { "version", 0, 0, G_OPTION_ARG_NONE, &show_version_and_exit, N_("Show program version and exit"), NULL },
2139     { "targetdir", 0, 0, G_OPTION_ARG_FILENAME, &targetdir, N_("where to store the gschemas.compiled file"), N_("DIRECTORY") },
2140     { "strict", 0, 0, G_OPTION_ARG_NONE, &strict, N_("Abort on any errors in schemas"), NULL },
2141     { "dry-run", 0, 0, G_OPTION_ARG_NONE, &dry_run, N_("Do not write the gschema.compiled file"), NULL },
2142     { "allow-any-name", 0, 0, G_OPTION_ARG_NONE, &allow_any_name, N_("Do not enforce key name restrictions") },
2143
2144     /* These options are only for use in the gschema-compile tests */
2145     { "schema-file", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_FILENAME_ARRAY, &schema_files, NULL, NULL },
2146     { "override-file", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_FILENAME_ARRAY, &override_files, NULL, NULL },
2147     { NULL }
2148   };
2149
2150 #ifdef G_OS_WIN32
2151   gchar *tmp = NULL;
2152 #endif
2153
2154   setlocale (LC_ALL, "");
2155   textdomain (GETTEXT_PACKAGE);
2156
2157 #ifdef G_OS_WIN32
2158   tmp = _glib_get_locale_dir ();
2159   bindtextdomain (GETTEXT_PACKAGE, tmp);
2160 #else
2161   bindtextdomain (GETTEXT_PACKAGE, GLIB_LOCALE_DIR);
2162 #endif
2163
2164 #ifdef HAVE_BIND_TEXTDOMAIN_CODESET
2165   bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
2166 #endif
2167
2168   context = g_option_context_new (N_("DIRECTORY"));
2169   g_option_context_set_translation_domain (context, GETTEXT_PACKAGE);
2170   g_option_context_set_summary (context,
2171     N_("Compile all GSettings schema files into a schema cache.\n"
2172        "Schema files are required to have the extension .gschema.xml,\n"
2173        "and the cache file is called gschemas.compiled."));
2174   g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
2175
2176   if (!g_option_context_parse (context, &argc, &argv, &error))
2177     {
2178       fprintf (stderr, "%s\n", error->message);
2179       retval = 1;
2180       goto done;
2181     }
2182
2183   if (show_version_and_exit)
2184     {
2185       g_print (PACKAGE_VERSION "\n");
2186       retval = 0;
2187       goto done;
2188     }
2189
2190   if (!schema_files && argc != 2)
2191     {
2192       fprintf (stderr, _("You should give exactly one directory name\n"));
2193       retval = 1;
2194       goto done;
2195     }
2196
2197   srcdir = argv[1];
2198
2199   target = g_build_filename (targetdir ? targetdir : srcdir, "gschemas.compiled", NULL);
2200
2201   if (!schema_files)
2202     {
2203       GPtrArray *overrides;
2204       GPtrArray *files;
2205
2206       files = g_ptr_array_new ();
2207       overrides = g_ptr_array_new ();
2208
2209       dir = g_dir_open (srcdir, 0, &error);
2210       if (dir == NULL)
2211         {
2212           fprintf (stderr, "%s\n", error->message);
2213
2214           g_ptr_array_unref (files);
2215           g_ptr_array_unref (overrides);
2216
2217           retval = 1;
2218           goto done;
2219         }
2220
2221       while ((file = g_dir_read_name (dir)) != NULL)
2222         {
2223           if (g_str_has_suffix (file, ".gschema.xml") ||
2224               g_str_has_suffix (file, ".enums.xml"))
2225             g_ptr_array_add (files, g_build_filename (srcdir, file, NULL));
2226
2227           else if (g_str_has_suffix (file, ".gschema.override"))
2228             g_ptr_array_add (overrides,
2229                              g_build_filename (srcdir, file, NULL));
2230         }
2231
2232       if (files->len == 0)
2233         {
2234           fprintf (stdout, _("No schema files found: "));
2235
2236           if (g_unlink (target))
2237             fprintf (stdout, _("doing nothing.\n"));
2238
2239           else
2240             fprintf (stdout, _("removed existing output file.\n"));
2241
2242           g_ptr_array_unref (files);
2243           g_ptr_array_unref (overrides);
2244
2245           retval = 0;
2246           goto done;
2247         }
2248       g_ptr_array_sort (files, compare_strings);
2249       g_ptr_array_add (files, NULL);
2250
2251       g_ptr_array_sort (overrides, compare_strings);
2252       g_ptr_array_add (overrides, NULL);
2253
2254       schema_files = (char **) g_ptr_array_free (files, FALSE);
2255       override_files = (gchar **) g_ptr_array_free (overrides, FALSE);
2256     }
2257
2258   if ((table = parse_gschema_files (schema_files, strict)) == NULL)
2259     {
2260       retval = 1;
2261       goto done;
2262     }
2263
2264   if (override_files != NULL &&
2265       !set_overrides (table, override_files, strict))
2266     {
2267       retval = 1;
2268       goto done;
2269     }
2270
2271   if (!dry_run && !write_to_file (table, target, &error))
2272     {
2273       fprintf (stderr, "%s\n", error->message);
2274       retval = 1;
2275       goto done;
2276     }
2277
2278   /* Success. */
2279   retval = 0;
2280
2281 done:
2282   g_clear_error (&error);
2283   g_clear_pointer (&table, g_hash_table_unref);
2284   g_clear_pointer (&dir, g_dir_close);
2285   g_free (targetdir);
2286   g_free (target);
2287   g_strfreev (schema_files);
2288   g_strfreev (override_files);
2289   g_option_context_free (context);
2290
2291 #ifdef G_OS_WIN32
2292   g_free (tmp);
2293 #endif
2294
2295   return retval;
2296 }
2297
2298 /* Epilogue {{{1 */
2299
2300 /* vim:set foldmethod=marker: */