diff options
Diffstat (limited to 'glib/dbus-gloader-expat.c')
| -rw-r--r-- | glib/dbus-gloader-expat.c | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/glib/dbus-gloader-expat.c b/glib/dbus-gloader-expat.c deleted file mode 100644 index 609f3164..00000000 --- a/glib/dbus-gloader-expat.c +++ /dev/null @@ -1,266 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu" -*- */ -/* dbus-gloader-expat.c expat XML loader - * - * Copyright (C) 2003 Red Hat, Inc. - * - * Licensed under the Academic Free License version 2.1 - * - * This program 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; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include "dbus-gparser.h" -#include <expat.h> -#include <string.h> - -static void* -expat_g_malloc (size_t sz) -{ - return g_malloc (sz); -} - -static void* -expat_g_realloc (void *mem, size_t sz) -{ - return g_realloc (mem, sz); -} - -static XML_Memory_Handling_Suite memsuite = -{ - expat_g_malloc, - expat_g_realloc, - g_free -}; - -/** - * Context for Expat parser for introspection data. - */ -typedef struct -{ - Parser *parser; /**< The parser for the introspection data */ - const char *filename; /**< The filename being loaded */ - GString *content; /**< The content of the current element */ - GError **error; /**< Error return location */ - gboolean failed; /**< True if parse has failed */ -} ExpatParseContext; - -static dbus_bool_t -process_content (ExpatParseContext *context) -{ - if (context->failed) - return FALSE; - - if (context->content->len > 0) - { - if (!parser_content (context->parser, - context->content->str, - context->content->len, - context->error)) - { - context->failed = TRUE; - return FALSE; - } - g_string_set_size (context->content, 0); - } - - return TRUE; -} - -static void -expat_StartElementHandler (void *userData, - const XML_Char *name, - const XML_Char **atts) -{ - ExpatParseContext *context = userData; - int i; - char **names; - char **values; - - /* Expat seems to suck and can't abort the parse if we - * throw an error. Expat 2.0 is supposed to fix this. - */ - if (context->failed) - return; - - if (!process_content (context)) - return; - - /* "atts" is key, value, key, value, NULL */ - for (i = 0; atts[i] != NULL; ++i) - ; /* nothing */ - - g_assert (i % 2 == 0); - names = g_new0 (char *, i / 2 + 1); - values = g_new0 (char *, i / 2 + 1); - - i = 0; - while (atts[i] != NULL) - { - g_assert (i % 2 == 0); - names [i / 2] = (char*) atts[i]; - values[i / 2] = (char*) atts[i+1]; - - i += 2; - } - - if (!parser_start_element (context->parser, - name, - (const char **) names, - (const char **) values, - context->error)) - { - g_free (names); - g_free (values); - context->failed = TRUE; - return; - } - - g_free (names); - g_free (values); -} - -static void -expat_EndElementHandler (void *userData, - const XML_Char *name) -{ - ExpatParseContext *context = userData; - - if (!process_content (context)) - return; - - if (!parser_end_element (context->parser, - name, - context->error)) - { - context->failed = TRUE; - return; - } -} - -/* s is not 0 terminated. */ -static void -expat_CharacterDataHandler (void *userData, - const XML_Char *s, - int len) -{ - ExpatParseContext *context = userData; - - if (context->failed) - return; - - g_string_append_len (context->content, - s, len); -} - -NodeInfo* -description_load_from_file (const char *filename, - GError **error) -{ - char *contents; - gsize len; - NodeInfo *nodes; - - contents = NULL; - if (!g_file_get_contents (filename, &contents, &len, error)) - return NULL; - - nodes = description_load_from_string (contents, len, error); - g_free (contents); - - return nodes; -} - -NodeInfo* -description_load_from_string (const char *str, - int len, - GError **error) -{ - XML_Parser expat; - ExpatParseContext context; - NodeInfo *nodes; - - g_return_val_if_fail (error == NULL || *error == NULL, NULL); - - if (len < 0) - len = strlen (str); - - expat = NULL; - context.parser = NULL; - context.error = error; - context.failed = FALSE; - - expat = XML_ParserCreate_MM ("UTF-8", &memsuite, NULL); - if (expat == NULL) - g_error ("No memory to create XML parser\n"); - - context.parser = parser_new (); - context.content = g_string_new (NULL); - - XML_SetUserData (expat, &context); - XML_SetElementHandler (expat, - expat_StartElementHandler, - expat_EndElementHandler); - XML_SetCharacterDataHandler (expat, - expat_CharacterDataHandler); - - if (!XML_Parse (expat, str, len, TRUE)) - { - if (context.error != NULL && - *context.error == NULL) - { - enum XML_Error e; - - e = XML_GetErrorCode (expat); - if (e == XML_ERROR_NO_MEMORY) - g_error ("Not enough memory to parse XML document"); - else - g_set_error (error, - G_MARKUP_ERROR, - G_MARKUP_ERROR_PARSE, - "Error in D-BUS description XML, line %d, column %d: %s\n", - XML_GetCurrentLineNumber (expat), - XML_GetCurrentColumnNumber (expat), - XML_ErrorString (e)); - } - - goto failed; - } - - if (context.failed) - goto failed; - - if (!parser_finished (context.parser, error)) - goto failed; - - XML_ParserFree (expat); - g_string_free (context.content, TRUE); - - g_return_val_if_fail (error == NULL || *error == NULL, NULL); - nodes = parser_get_nodes (context.parser); - node_info_ref (nodes); - parser_unref (context.parser); - return nodes; - - failed: - g_return_val_if_fail (error == NULL || *error != NULL, NULL); - - g_string_free (context.content, TRUE); - if (expat) - XML_ParserFree (expat); - if (context.parser) - parser_unref (context.parser); - return NULL; -} - |