*
* You should have received a copy of the GNU Lesser General Public
* License along with GLib; see the file COPYING.LIB. If not,
- * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gmarkup.h"
+#include "gatomic.h"
+#include "gslice.h"
#include "galloca.h"
#include "gstrfuncs.h"
#include "gstring.h"
#include "gtestutils.h"
#include "glibintl.h"
+#include "gthread.h"
-GQuark
-g_markup_error_quark (void)
-{
- return g_quark_from_static_string ("g-markup-error-quark");
-}
+/**
+ * SECTION:markup
+ * @Title: Simple XML Subset Parser
+ * @Short_description: parses a subset of XML
+ * @See_also: [XML Specification](http://www.w3.org/TR/REC-xml/)
+ *
+ * The "GMarkup" parser is intended to parse a simple markup format
+ * that's a subset of XML. This is a small, efficient, easy-to-use
+ * parser. It should not be used if you expect to interoperate with
+ * other applications generating full-scale XML. However, it's very
+ * useful for application data files, config files, etc. where you
+ * know your application will be the only one writing the file.
+ * Full-scale XML parsers should be able to parse the subset used by
+ * GMarkup, so you can easily migrate to full-scale XML at a later
+ * time if the need arises.
+ *
+ * GMarkup is not guaranteed to signal an error on all invalid XML;
+ * the parser may accept documents that an XML parser would not.
+ * However, XML documents which are not well-formed (which is a
+ * weaker condition than being valid. See the
+ * [XML specification](http://www.w3.org/TR/REC-xml/)
+ * for definitions of these terms.) are not considered valid GMarkup
+ * documents.
+ *
+ * Simplifications to XML include:
+ *
+ * - Only UTF-8 encoding is allowed
+ *
+ * - No user-defined entities
+ *
+ * - Processing instructions, comments and the doctype declaration
+ * are "passed through" but are not interpreted in any way
+ *
+ * - No DTD or validation
+ *
+ * The markup format does support:
+ *
+ * - Elements
+ *
+ * - Attributes
+ *
+ * - 5 standard entities: & < > " '
+ *
+ * - Character references
+ *
+ * - Sections marked as CDATA
+ */
+
+G_DEFINE_QUARK (g-markup-error-quark, g_markup_error)
typedef enum
{
{
const GMarkupParser *parser;
+ volatile gint ref_count;
+
GMarkupParseFlags flags;
gint line_number;
gint char_number;
+ GMarkupParseState state;
+
gpointer user_data;
GDestroyNotify dnotify;
GString *partial_chunk;
GSList *spare_chunks;
- GMarkupParseState state;
GSList *tag_stack;
GSList *tag_stack_gstr;
GSList *spare_list_nodes;
gint alloc_attrs;
const gchar *current_text;
- gssize current_text_len;
+ gssize current_text_len;
const gchar *current_text_end;
/* used to save the start of the last interesting thingy */
* @parser: a #GMarkupParser
* @flags: one or more #GMarkupParseFlags
* @user_data: user data to pass to #GMarkupParser functions
- * @user_data_dnotify: user data destroy notifier called when the parse context is freed
- *
+ * @user_data_dnotify: user data destroy notifier called when
+ * the parse context is freed
+ *
* Creates a new parse context. A parse context is used to parse
* marked-up documents. You can feed any number of documents into
* a context, as long as no errors occur; once an error occurs,
- * the parse context can't continue to parse text (you have to free it
- * and create a new parse context).
- *
- * Return value: a new #GMarkupParseContext
+ * the parse context can't continue to parse text (you have to
+ * free it and create a new parse context).
+ *
+ * Returns: a new #GMarkupParseContext
**/
GMarkupParseContext *
g_markup_parse_context_new (const GMarkupParser *parser,
context = g_new (GMarkupParseContext, 1);
+ context->ref_count = 1;
context->parser = parser;
context->flags = flags;
context->user_data = user_data;
return context;
}
+/**
+ * g_markup_parse_context_ref:
+ * @context: a #GMarkupParseContext
+ *
+ * Increases the reference count of @context.
+ *
+ * Returns: the same @context
+ *
+ * Since: 2.36
+ **/
+GMarkupParseContext *
+g_markup_parse_context_ref (GMarkupParseContext *context)
+{
+ g_return_val_if_fail (context != NULL, NULL);
+ g_return_val_if_fail (context->ref_count > 0, NULL);
+
+ g_atomic_int_inc (&context->ref_count);
+
+ return context;
+}
+
+/**
+ * g_markup_parse_context_unref:
+ * @context: a #GMarkupParseContext
+ *
+ * Decreases the reference count of @context. When its reference count
+ * drops to 0, it is freed.
+ *
+ * Since: 2.36
+ **/
+void
+g_markup_parse_context_unref (GMarkupParseContext *context)
+{
+ g_return_if_fail (context != NULL);
+ g_return_if_fail (context->ref_count > 0);
+
+ if (g_atomic_int_dec_and_test (&context->ref_count))
+ g_markup_parse_context_free (context);
+}
+
static void
-string_full_free (gpointer ptr, gpointer user_data)
+string_full_free (gpointer ptr)
{
g_string_free (ptr, TRUE);
}
/**
* g_markup_parse_context_free:
* @context: a #GMarkupParseContext
- *
- * Frees a #GMarkupParseContext. Can't be called from inside
- * one of the #GMarkupParser functions. Can't be called while
- * a subparser is pushed.
- **/
+ *
+ * Frees a #GMarkupParseContext.
+ *
+ * This function can't be called from inside one of the
+ * #GMarkupParser functions or while a subparser is pushed.
+ */
void
g_markup_parse_context_free (GMarkupParseContext *context)
{
g_free (context->attr_names);
g_free (context->attr_values);
- g_slist_foreach (context->tag_stack_gstr, string_full_free, NULL);
- g_slist_free (context->tag_stack_gstr);
+ g_slist_free_full (context->tag_stack_gstr, string_full_free);
g_slist_free (context->tag_stack);
- g_slist_foreach (context->spare_chunks, string_full_free, NULL);
- g_slist_free (context->spare_chunks);
+ g_slist_free_full (context->spare_chunks, string_full_free);
g_slist_free (context->spare_list_nodes);
if (context->partial_chunk)
}
}
-static void set_error (GMarkupParseContext *context,
- GError **error,
- GMarkupError code,
- const gchar *format,
- ...) G_GNUC_PRINTF (4, 5);
+static void
+set_error (GMarkupParseContext *context,
+ GError **error,
+ GMarkupError code,
+ const gchar *format,
+ ...) G_GNUC_PRINTF (4, 5);
static void
-set_error_literal (GMarkupParseContext *context,
- GError **error,
- GMarkupError code,
- const gchar *message)
+set_error_literal (GMarkupParseContext *context,
+ GError **error,
+ GMarkupError code,
+ const gchar *message)
{
GError *tmp_error;
g_propagate_error (error, tmp_error);
}
+G_GNUC_PRINTF(4, 5)
static void
-set_error (GMarkupParseContext *context,
- GError **error,
- GMarkupError code,
- const gchar *format,
+set_error (GMarkupParseContext *context,
+ GError **error,
+ GMarkupError code,
+ const gchar *format,
...)
{
gchar *s;
s = g_strdup_vprintf (format, args);
va_end (args);
- /* Make sure that the GError message is valid UTF-8 even if it is
- * complaining about invalid UTF-8 in the markup: */
+ /* Make sure that the GError message is valid UTF-8
+ * even if it is complaining about invalid UTF-8 in the markup
+ */
s_valid = _g_utf8_make_valid (s);
set_error_literal (context, error, code, s);
((c) == '=' || (c) == '/' || (c) == '>' || (c) == ' ')
static gboolean
-slow_name_validate (GMarkupParseContext *context, const char *name, GError **error)
+slow_name_validate (GMarkupParseContext *context,
+ const gchar *name,
+ GError **error)
{
- const char *p = name;
+ const gchar *p = name;
if (!g_utf8_validate (name, strlen (name), NULL))
{
set_error (context, error, G_MARKUP_ERROR_BAD_UTF8,
- _("Invalid UTF-8 encoded text in name - not valid '%s'"), name);
+ _("Invalid UTF-8 encoded text in name - not valid '%s'"), name);
return FALSE;
}
if (!(g_ascii_isalpha (*p) ||
- (!IS_COMMON_NAME_END_CHAR (*p) &&
- (*p == '_' ||
- *p == ':' ||
- g_unichar_isalpha (g_utf8_get_char (p))))))
+ (!IS_COMMON_NAME_END_CHAR (*p) &&
+ (*p == '_' ||
+ *p == ':' ||
+ g_unichar_isalpha (g_utf8_get_char (p))))))
{
set_error (context, error, G_MARKUP_ERROR_PARSE,
- _("'%s' is not a valid name "), name);
+ _("'%s' is not a valid name"), name);
return FALSE;
}
{
/* is_name_char */
if (!(g_ascii_isalnum (*p) ||
- (!IS_COMMON_NAME_END_CHAR (*p) &&
- (*p == '.' ||
- *p == '-' ||
- *p == '_' ||
- *p == ':' ||
- g_unichar_isalpha (g_utf8_get_char (p))))))
- {
- set_error (context, error, G_MARKUP_ERROR_PARSE,
- _("'%s' is not a valid name: '%c' "), name, *p);
- return FALSE;
- }
+ (!IS_COMMON_NAME_END_CHAR (*p) &&
+ (*p == '.' ||
+ *p == '-' ||
+ *p == '_' ||
+ *p == ':' ||
+ g_unichar_isalpha (g_utf8_get_char (p))))))
+ {
+ set_error (context, error, G_MARKUP_ERROR_PARSE,
+ _("'%s' is not a valid name: '%c'"), name, *p);
+ return FALSE;
+ }
}
return TRUE;
}
-/*
+/*
* Use me for elements, attributes etc.
*/
static gboolean
-name_validate (GMarkupParseContext *context, const char *name, GError **error)
+name_validate (GMarkupParseContext *context,
+ const gchar *name,
+ GError **error)
{
char mask;
const char *p;
/* name start char */
p = name;
if (G_UNLIKELY (IS_COMMON_NAME_END_CHAR (*p) ||
- !(g_ascii_isalpha (*p) || *p == '_' || *p == ':')))
+ !(g_ascii_isalpha (*p) || *p == '_' || *p == ':')))
goto slow_validate;
-
+
for (mask = *p++; *p != '\0'; p++)
{
mask |= *p;
/* is_name_char */
if (G_UNLIKELY (!(g_ascii_isalnum (*p) ||
- (!IS_COMMON_NAME_END_CHAR (*p) &&
- (*p == '.' ||
- *p == '-' ||
- *p == '_' ||
- *p == ':')))))
- goto slow_validate;
+ (!IS_COMMON_NAME_END_CHAR (*p) &&
+ (*p == '.' ||
+ *p == '-' ||
+ *p == '_' ||
+ *p == ':')))))
+ goto slow_validate;
}
if (mask & 0x80) /* un-common / non-ascii */
}
static gboolean
-text_validate (GMarkupParseContext *context, const char *p, int len, GError **error)
+text_validate (GMarkupParseContext *context,
+ const gchar *p,
+ gint len,
+ GError **error)
{
if (!g_utf8_validate (p, len, NULL))
{
set_error (context, error, G_MARKUP_ERROR_BAD_UTF8,
- _("Invalid UTF-8 encoded text in name - not valid '%s'"), p);
+ _("Invalid UTF-8 encoded text in name - not valid '%s'"), p);
return FALSE;
}
else
return buf;
}
+G_GNUC_PRINTF(5, 6)
static void
-set_unescape_error (GMarkupParseContext *context,
- GError **error,
- const gchar *remaining_text,
- GMarkupError code,
- const gchar *format,
+set_unescape_error (GMarkupParseContext *context,
+ GError **error,
+ const gchar *remaining_text,
+ GMarkupError code,
+ const gchar *format,
...)
{
GError *tmp_error;
* most XML does not contain entities, or escaping.
*/
static gboolean
-unescape_gstring_inplace (GMarkupParseContext *context,
- GString *string,
- gboolean *is_ascii,
- GError **error)
+unescape_gstring_inplace (GMarkupParseContext *context,
+ GString *string,
+ gboolean *is_ascii,
+ GError **error)
{
char mask, *to;
int line_num = 1;
normalize_attribute = FALSE;
/*
- * Meeks' theorum: unescaping can only shrink text.
+ * Meeks' theorem: unescaping can only shrink text.
* for < etc. this is obvious, for  more
* thought is required, but this is patently so.
*/
mask = 0;
- for (from = to = string->str; *from != '\0'; from++, to++)
+ for (from = to = string->str; *from != '\0'; from++, to++)
{
*to = *from;
mask |= *to;
if (*to == '\n')
- line_num++;
+ line_num++;
if (normalize_attribute && (*to == '\t' || *to == '\n'))
- *to = ' ';
+ *to = ' ';
if (*to == '\r')
- {
- *to = normalize_attribute ? ' ' : '\n';
- if (from[1] == '\n')
- from++;
- }
+ {
+ *to = normalize_attribute ? ' ' : '\n';
+ if (from[1] == '\n')
+ from++;
+ }
if (*from == '&')
- {
- from++;
- if (*from == '#')
- {
- gboolean is_hex = FALSE;
- gulong l;
- gchar *end = NULL;
-
- from++;
-
- if (*from == 'x')
- {
- is_hex = TRUE;
- from++;
- }
-
- /* digit is between start and p */
- errno = 0;
- if (is_hex)
- l = strtoul (from, &end, 16);
- else
- l = strtoul (from, &end, 10);
-
- if (end == from || errno != 0)
- {
- set_unescape_error (context, error,
- from, G_MARKUP_ERROR_PARSE,
- _("Failed to parse '%-.*s', which "
- "should have been a digit "
- "inside a character reference "
- "(ê for example) - perhaps "
- "the digit is too large"),
- end - from, from);
- return FALSE;
- }
- else if (*end != ';')
- {
- set_unescape_error (context, error,
- from, G_MARKUP_ERROR_PARSE,
- _("Character reference did not end with a "
- "semicolon; "
- "most likely you used an ampersand "
- "character without intending to start "
- "an entity - escape ampersand as &"));
- return FALSE;
- }
- else
- {
- /* characters XML 1.1 permits */
- if ((0 < l && l <= 0xD7FF) ||
- (0xE000 <= l && l <= 0xFFFD) ||
- (0x10000 <= l && l <= 0x10FFFF))
- {
- gchar buf[8];
- char_str (l, buf);
- strcpy (to, buf);
- to += strlen (buf) - 1;
- from = end;
- if (l >= 0x80) /* not ascii */
- mask |= 0x80;
- }
- else
- {
- set_unescape_error (context, error,
- from, G_MARKUP_ERROR_PARSE,
- _("Character reference '%-.*s' does not "
- "encode a permitted character"),
- end - from, from);
- return FALSE;
- }
- }
+ {
+ from++;
+ if (*from == '#')
+ {
+ gboolean is_hex = FALSE;
+ gulong l;
+ gchar *end = NULL;
+
+ from++;
+
+ if (*from == 'x')
+ {
+ is_hex = TRUE;
+ from++;
+ }
+
+ /* digit is between start and p */
+ errno = 0;
+ if (is_hex)
+ l = strtoul (from, &end, 16);
+ else
+ l = strtoul (from, &end, 10);
+
+ if (end == from || errno != 0)
+ {
+ set_unescape_error (context, error,
+ from, G_MARKUP_ERROR_PARSE,
+ _("Failed to parse '%-.*s', which "
+ "should have been a digit "
+ "inside a character reference "
+ "(ê for example) - perhaps "
+ "the digit is too large"),
+ (int)(end - from), from);
+ return FALSE;
+ }
+ else if (*end != ';')
+ {
+ set_unescape_error (context, error,
+ from, G_MARKUP_ERROR_PARSE,
+ _("Character reference did not end with a "
+ "semicolon; "
+ "most likely you used an ampersand "
+ "character without intending to start "
+ "an entity - escape ampersand as &"));
+ return FALSE;
+ }
+ else
+ {
+ /* characters XML 1.1 permits */
+ if ((0 < l && l <= 0xD7FF) ||
+ (0xE000 <= l && l <= 0xFFFD) ||
+ (0x10000 <= l && l <= 0x10FFFF))
+ {
+ gchar buf[8];
+ char_str (l, buf);
+ strcpy (to, buf);
+ to += strlen (buf) - 1;
+ from = end;
+ if (l >= 0x80) /* not ascii */
+ mask |= 0x80;
+ }
+ else
+ {
+ set_unescape_error (context, error,
+ from, G_MARKUP_ERROR_PARSE,
+ _("Character reference '%-.*s' does not "
+ "encode a permitted character"),
+ (int)(end - from), from);
+ return FALSE;
+ }
+ }
}
else if (strncmp (from, "lt;", 3) == 0)
- {
- *to = '<';
- from += 2;
- }
+ {
+ *to = '<';
+ from += 2;
+ }
else if (strncmp (from, "gt;", 3) == 0)
- {
- *to = '>';
- from += 2;
- }
+ {
+ *to = '>';
+ from += 2;
+ }
else if (strncmp (from, "amp;", 4) == 0)
- {
- *to = '&';
- from += 3;
- }
+ {
+ *to = '&';
+ from += 3;
+ }
else if (strncmp (from, "quot;", 5) == 0)
- {
- *to = '"';
- from += 4;
- }
- else if (strncmp (from, "apos;", 5) == 0)
- {
- *to = '\'';
- from += 4;
- }
- else
- {
- if (*from == ';')
- set_unescape_error (context, error,
- from, G_MARKUP_ERROR_PARSE,
- _("Empty entity '&;' seen; valid "
- "entities are: & " < > '"));
- else
- {
- const char *end = strchr (from, ';');
- if (end)
- set_unescape_error (context, error,
- from, G_MARKUP_ERROR_PARSE,
- _("Entity name '%-.*s' is not known"),
- end-from, from);
- else
- set_unescape_error (context, error,
- from, G_MARKUP_ERROR_PARSE,
- _("Entity did not end with a semicolon; "
- "most likely you used an ampersand "
- "character without intending to start "
- "an entity - escape ampersand as &"));
- }
- return FALSE;
- }
- }
+ {
+ *to = '"';
+ from += 4;
+ }
+ else if (strncmp (from, "apos;", 5) == 0)
+ {
+ *to = '\'';
+ from += 4;
+ }
+ else
+ {
+ if (*from == ';')
+ set_unescape_error (context, error,
+ from, G_MARKUP_ERROR_PARSE,
+ _("Empty entity '&;' seen; valid "
+ "entities are: & " < > '"));
+ else
+ {
+ const char *end = strchr (from, ';');
+ if (end)
+ set_unescape_error (context, error,
+ from, G_MARKUP_ERROR_PARSE,
+ _("Entity name '%-.*s' is not known"),
+ (int)(end - from), from);
+ else
+ set_unescape_error (context, error,
+ from, G_MARKUP_ERROR_PARSE,
+ _("Entity did not end with a semicolon; "
+ "most likely you used an ampersand "
+ "character without intending to start "
+ "an entity - escape ampersand as &"));
+ }
+ return FALSE;
+ }
+ }
}
g_assert (to - string->str <= string->len);
static inline gboolean
advance_char (GMarkupParseContext *context)
-{
+{
context->iter++;
context->char_number++;
context->line_number++;
context->char_number = 1;
}
-
+
return TRUE;
}
if (IS_COMMON_NAME_END_CHAR (*(context->iter)))
return;
if (xml_isspace (*(context->iter)))
- return;
+ return;
}
while (advance_char (context));
}
{ /* allocate a new chunk to parse into */
if (context->spare_chunks != NULL)
- {
- GSList *node = context->spare_chunks;
- context->spare_chunks = g_slist_remove_link (context->spare_chunks, node);
- context->partial_chunk = node->data;
- free_list_node (context, node);
- }
+ {
+ GSList *node = context->spare_chunks;
+ context->spare_chunks = g_slist_remove_link (context->spare_chunks, node);
+ context->partial_chunk = node->data;
+ free_list_node (context, node);
+ }
else
- context->partial_chunk = g_string_sized_new (MAX (28, text_end - text_start));
+ context->partial_chunk = g_string_sized_new (MAX (28, text_end - text_start));
}
if (text_start != text_end)
g_string_insert_len (context->partial_chunk, -1,
- text_start, text_end - text_start);
+ text_start, text_end - text_start);
}
static inline void
{
if (context->awaiting_pop)
g_critical ("During the first end_element call after invoking a "
- "subparser you must pop the subparser stack and handle "
- "the freeing of the subparser user_data. This can be "
- "done by calling the end function of the subparser. "
- "Very probably, your program just leaked memory.");
+ "subparser you must pop the subparser stack and handle "
+ "the freeing of the subparser user_data. This can be "
+ "done by calling the end function of the subparser. "
+ "Very probably, your program just leaked memory.");
/* let valgrind watch the pointer disappear... */
context->held_user_data = NULL;
}
g_assert (context->cur_attr == -1);
g_assert (context->attr_names == NULL ||
- context->attr_names[0] == NULL);
+ context->attr_names[0] == NULL);
g_assert (context->attr_values == NULL ||
- context->attr_values[0] == NULL);
+ context->attr_values[0] == NULL);
}
/* This has to be a separate function to ensure the alloca's
- are unwound on exit - otherwise we grow & blow the stack
- with large documents */
+ * are unwound on exit - otherwise we grow & blow the stack
+ * with large documents
+ */
static inline void
-emit_start_element (GMarkupParseContext *context, GError **error)
+emit_start_element (GMarkupParseContext *context,
+ GError **error)
{
- int i;
+ int i, j = 0;
const gchar *start_name;
const gchar **attr_names;
const gchar **attr_values;
GError *tmp_error;
-
+
+ /* In case we want to ignore qualified tags and we see that we have
+ * one here, we push a subparser. This will ignore all tags inside of
+ * the qualified tag.
+ *
+ * We deal with the end of the subparser from emit_end_element.
+ */
+ if ((context->flags & G_MARKUP_IGNORE_QUALIFIED) && strchr (current_element (context), ':'))
+ {
+ static const GMarkupParser ignore_parser;
+ g_markup_parse_context_push (context, &ignore_parser, NULL);
+ clear_attributes (context);
+ return;
+ }
+
attr_names = g_newa (const gchar *, context->cur_attr + 2);
attr_values = g_newa (const gchar *, context->cur_attr + 2);
for (i = 0; i < context->cur_attr + 1; i++)
{
- attr_names[i] = context->attr_names[i]->str;
- attr_values[i] = context->attr_values[i]->str;
+ /* Possibly omit qualified attribute names from the list */
+ if ((context->flags & G_MARKUP_IGNORE_QUALIFIED) && strchr (context->attr_names[i]->str, ':'))
+ continue;
+
+ attr_names[j] = context->attr_names[i]->str;
+ attr_values[j] = context->attr_values[i]->str;
+ j++;
}
- attr_names[i] = NULL;
- attr_values[i] = NULL;
-
+ attr_names[j] = NULL;
+ attr_values[j] = NULL;
+
/* Call user callback for element start */
tmp_error = NULL;
start_name = current_element (context);
-
+
if (context->parser->start_element &&
name_validate (context, start_name, error))
(* context->parser->start_element) (context,
- start_name,
- (const gchar **)attr_names,
- (const gchar **)attr_values,
- context->user_data,
- &tmp_error);
+ start_name,
+ (const gchar **)attr_names,
+ (const gchar **)attr_values,
+ context->user_data,
+ &tmp_error);
clear_attributes (context);
-
+
if (tmp_error != NULL)
propagate_error (context, error, tmp_error);
}
+static void
+emit_end_element (GMarkupParseContext *context,
+ GError **error)
+{
+ /* We need to pop the tag stack and call the end_element
+ * function, since this is the close tag
+ */
+ GError *tmp_error = NULL;
+
+ g_assert (context->tag_stack != NULL);
+
+ possibly_finish_subparser (context);
+
+ /* We might have just returned from our ignore subparser */
+ if ((context->flags & G_MARKUP_IGNORE_QUALIFIED) && strchr (current_element (context), ':'))
+ {
+ g_markup_parse_context_pop (context);
+ pop_tag (context);
+ return;
+ }
+
+ tmp_error = NULL;
+ if (context->parser->end_element)
+ (* context->parser->end_element) (context,
+ current_element (context),
+ context->user_data,
+ &tmp_error);
+
+ ensure_no_outstanding_subparser (context);
+
+ if (tmp_error)
+ {
+ mark_error (context, tmp_error);
+ g_propagate_error (error, tmp_error);
+ }
+
+ pop_tag (context);
+}
+
/**
* g_markup_parse_context_parse:
* @context: a #GMarkupParseContext
* @text: chunk of text to parse
* @text_len: length of @text in bytes
* @error: return location for a #GError
- *
- * Feed some data to the #GMarkupParseContext. The data need not
- * be valid UTF-8; an error will be signaled if it's invalid.
- * The data need not be an entire document; you can feed a document
- * into the parser incrementally, via multiple calls to this function.
- * Typically, as you receive data from a network connection or file,
- * you feed each received chunk of data into this function, aborting
- * the process if an error occurs. Once an error is reported, no further
- * data may be fed to the #GMarkupParseContext; all errors are fatal.
- *
- * Return value: %FALSE if an error occurred, %TRUE on success
- **/
+ *
+ * Feed some data to the #GMarkupParseContext.
+ *
+ * The data need not be valid UTF-8; an error will be signaled if
+ * it's invalid. The data need not be an entire document; you can
+ * feed a document into the parser incrementally, via multiple calls
+ * to this function. Typically, as you receive data from a network
+ * connection or file, you feed each received chunk of data into this
+ * function, aborting the process if an error occurs. Once an error
+ * is reported, no further data may be fed to the #GMarkupParseContext;
+ * all errors are fatal.
+ *
+ * Returns: %FALSE if an error occurred, %TRUE on success
+ */
gboolean
-g_markup_parse_context_parse (GMarkupParseContext *context,
- const gchar *text,
- gssize text_len,
- GError **error)
+g_markup_parse_context_parse (GMarkupParseContext *context,
+ const gchar *text,
+ gssize text_len,
+ GError **error)
{
g_return_val_if_fail (context != NULL, FALSE);
g_return_val_if_fail (text != NULL, FALSE);
g_return_val_if_fail (context->state != STATE_ERROR, FALSE);
g_return_val_if_fail (!context->parsing, FALSE);
-
+
if (text_len < 0)
text_len = strlen (text);
if (text_len == 0)
return TRUE;
-
+
context->parsing = TRUE;
-
+
context->current_text = text;
context->current_text_len = text_len;
context->iter = context->current_text;
context->start = context->iter;
- if (context->current_text_len == 0)
- goto finished;
-
while (context->iter != context->current_text_end)
{
switch (context->state)
const gchar *openangle = "<";
add_to_partial (context, openangle, openangle + 1);
context->start = context->iter;
- context->balance = 1;
+ context->balance = 1;
context->state = STATE_INSIDE_PASSTHROUGH;
}
else if (*context->iter == '/')
case STATE_AFTER_ELISION_SLASH:
/* Possible next state: AFTER_CLOSE_ANGLE */
+ if (*context->iter == '>')
+ {
+ /* move after the close angle */
+ advance_char (context);
+ context->state = STATE_AFTER_CLOSE_ANGLE;
+ emit_end_element (context, error);
+ }
+ else
+ {
+ gchar buf[8];
- {
- /* We need to pop the tag stack and call the end_element
- * function, since this is the close tag
- */
- GError *tmp_error = NULL;
-
- g_assert (context->tag_stack != NULL);
-
- possibly_finish_subparser (context);
-
- tmp_error = NULL;
- if (context->parser->end_element)
- (* context->parser->end_element) (context,
- current_element (context),
- context->user_data,
- &tmp_error);
-
- ensure_no_outstanding_subparser (context);
-
- if (tmp_error)
- {
- mark_error (context, tmp_error);
- g_propagate_error (error, tmp_error);
- }
- else
- {
- if (*context->iter == '>')
- {
- /* move after the close angle */
- advance_char (context);
- context->state = STATE_AFTER_CLOSE_ANGLE;
- }
- else
- {
- gchar buf[8];
-
- set_error (context,
- error,
- G_MARKUP_ERROR_PARSE,
- _("Odd character '%s', expected a '>' character "
- "to end the empty-element tag '%s'"),
- utf8_str (context->iter, buf),
- current_element (context));
- }
- }
- pop_tag (context);
- }
+ set_error (context,
+ error,
+ G_MARKUP_ERROR_PARSE,
+ _("Odd character '%s', expected a '>' character "
+ "to end the empty-element tag '%s'"),
+ utf8_str (context->iter, buf),
+ current_element (context));
+ }
break;
case STATE_INSIDE_OPEN_TAG_NAME:
* if any; push it on the stack; enter next state.
*/
add_to_partial (context, context->start, context->iter);
- push_partial_as_tag (context);
+ push_partial_as_tag (context);
context->state = STATE_BETWEEN_ATTRIBUTES;
context->start = NULL;
/* Possible next states: AFTER_ATTRIBUTE_NAME */
advance_to_name_end (context);
- add_to_partial (context, context->start, context->iter);
+ add_to_partial (context, context->start, context->iter);
/* read the full name, if we enter the equals sign state
* then add the attribute to the list (without the value),
* otherwise store a partial chunk to be prepended later.
*/
if (context->iter != context->current_text_end)
- context->state = STATE_AFTER_ATTRIBUTE_NAME;
- break;
+ context->state = STATE_AFTER_ATTRIBUTE_NAME;
+ break;
- case STATE_AFTER_ATTRIBUTE_NAME:
+ case STATE_AFTER_ATTRIBUTE_NAME:
/* Possible next states: AFTER_ATTRIBUTE_EQUALS_SIGN */
- skip_spaces (context);
+ skip_spaces (context);
- if (context->iter != context->current_text_end)
- {
- /* The name has ended. Combine it with the partial chunk
- * if any; push it on the stack; enter next state.
- */
- if (!name_validate (context, context->partial_chunk->str, error))
- break;
+ if (context->iter != context->current_text_end)
+ {
+ /* The name has ended. Combine it with the partial chunk
+ * if any; push it on the stack; enter next state.
+ */
+ if (!name_validate (context, context->partial_chunk->str, error))
+ break;
+
+ add_attribute (context, context->partial_chunk);
- add_attribute (context, context->partial_chunk);
-
context->partial_chunk = NULL;
context->start = NULL;
-
+
if (*context->iter == '=')
{
advance_char (context);
utf8_str (context->iter, buf),
current_attribute (context),
current_element (context));
-
+
}
}
break;
*/
if (context->state == STATE_AFTER_ELISION_SLASH ||
context->state == STATE_AFTER_CLOSE_ANGLE)
- emit_start_element (context, error);
+ emit_start_element (context, error);
}
break;
case STATE_AFTER_ATTRIBUTE_EQUALS_SIGN:
/* Possible next state: INSIDE_ATTRIBUTE_VALUE_[SQ/DQ] */
- skip_spaces (context);
-
- if (context->iter != context->current_text_end)
- {
- if (*context->iter == '"')
- {
- advance_char (context);
- context->state = STATE_INSIDE_ATTRIBUTE_VALUE_DQ;
- context->start = context->iter;
- }
- else if (*context->iter == '\'')
- {
- advance_char (context);
- context->state = STATE_INSIDE_ATTRIBUTE_VALUE_SQ;
- context->start = context->iter;
- }
- else
- {
- gchar buf[8];
-
- set_error (context,
- error,
- G_MARKUP_ERROR_PARSE,
- _("Odd character '%s', expected an open quote mark "
- "after the equals sign when giving value for "
- "attribute '%s' of element '%s'"),
- utf8_str (context->iter, buf),
- current_attribute (context),
- current_element (context));
- }
- }
+ skip_spaces (context);
+
+ if (context->iter != context->current_text_end)
+ {
+ if (*context->iter == '"')
+ {
+ advance_char (context);
+ context->state = STATE_INSIDE_ATTRIBUTE_VALUE_DQ;
+ context->start = context->iter;
+ }
+ else if (*context->iter == '\'')
+ {
+ advance_char (context);
+ context->state = STATE_INSIDE_ATTRIBUTE_VALUE_SQ;
+ context->start = context->iter;
+ }
+ else
+ {
+ gchar buf[8];
+
+ set_error (context,
+ error,
+ G_MARKUP_ERROR_PARSE,
+ _("Odd character '%s', expected an open quote mark "
+ "after the equals sign when giving value for "
+ "attribute '%s' of element '%s'"),
+ utf8_str (context->iter, buf),
+ current_attribute (context),
+ current_element (context));
+ }
+ }
break;
case STATE_INSIDE_ATTRIBUTE_VALUE_SQ:
case STATE_INSIDE_ATTRIBUTE_VALUE_DQ:
/* Possible next states: BETWEEN_ATTRIBUTES */
- {
- gchar delim;
-
- if (context->state == STATE_INSIDE_ATTRIBUTE_VALUE_SQ)
- {
- delim = '\'';
- }
- else
- {
- delim = '"';
- }
-
- do
- {
- if (*context->iter == delim)
- break;
- }
- while (advance_char (context));
- }
+ {
+ gchar delim;
+
+ if (context->state == STATE_INSIDE_ATTRIBUTE_VALUE_SQ)
+ {
+ delim = '\'';
+ }
+ else
+ {
+ delim = '"';
+ }
+
+ do
+ {
+ if (*context->iter == delim)
+ break;
+ }
+ while (advance_char (context));
+ }
if (context->iter == context->current_text_end)
{
/* The value hasn't necessarily ended. Merge with
}
else
{
- gboolean is_ascii;
+ gboolean is_ascii;
/* The value has ended at the quote mark. Combine it
* with the partial chunk if any; set it for the current
* attribute.
add_to_partial (context, context->start, context->iter);
g_assert (context->cur_attr >= 0);
-
+
if (unescape_gstring_inplace (context, context->partial_chunk, &is_ascii, error) &&
- (is_ascii || text_validate (context, context->partial_chunk->str,
- context->partial_chunk->len, error)))
+ (is_ascii || text_validate (context, context->partial_chunk->str,
+ context->partial_chunk->len, error)))
{
/* success, advance past quote and set state. */
context->attr_values[context->cur_attr] = context->partial_chunk;
- context->partial_chunk = NULL;
+ context->partial_chunk = NULL;
advance_char (context);
context->state = STATE_BETWEEN_ATTRIBUTES;
context->start = NULL;
}
-
+
truncate_partial (context);
}
break;
if (context->iter != context->current_text_end)
{
- gboolean is_ascii;
+ gboolean is_ascii;
/* The text has ended at the open angle. Call the text
* callback.
*/
-
if (unescape_gstring_inplace (context, context->partial_chunk, &is_ascii, error) &&
- (is_ascii || text_validate (context, context->partial_chunk->str,
- context->partial_chunk->len, error)))
+ (is_ascii || text_validate (context, context->partial_chunk->str,
+ context->partial_chunk->len, error)))
{
GError *tmp_error = NULL;
if (context->parser->text)
(*context->parser->text) (context,
- context->partial_chunk->str,
- context->partial_chunk->len,
+ context->partial_chunk->str,
+ context->partial_chunk->len,
context->user_data,
&tmp_error);
-
+
if (tmp_error == NULL)
{
/* advance past open angle and set state. */
case STATE_INSIDE_CLOSE_TAG_NAME:
/* Possible next state: AFTER_CLOSE_TAG_NAME */
advance_to_name_end (context);
- add_to_partial (context, context->start, context->iter);
+ add_to_partial (context, context->start, context->iter);
if (context->iter != context->current_text_end)
- context->state = STATE_AFTER_CLOSE_TAG_NAME;
- break;
+ context->state = STATE_AFTER_CLOSE_TAG_NAME;
+ break;
- case STATE_AFTER_CLOSE_TAG_NAME:
+ case STATE_AFTER_CLOSE_TAG_NAME:
/* Possible next state: AFTER_CLOSE_TAG_SLASH */
- skip_spaces (context);
-
- if (context->iter != context->current_text_end)
- {
- GString *close_name;
-
- close_name = context->partial_chunk;
- context->partial_chunk = NULL;
-
- if (*context->iter != '>')
- {
- gchar buf[8];
-
- set_error (context,
- error,
- G_MARKUP_ERROR_PARSE,
- _("'%s' is not a valid character following "
- "the close element name '%s'; the allowed "
- "character is '>'"),
- utf8_str (context->iter, buf),
- close_name->str);
- }
- else if (context->tag_stack == NULL)
- {
- set_error (context,
- error,
- G_MARKUP_ERROR_PARSE,
- _("Element '%s' was closed, no element "
- "is currently open"),
- close_name->str);
- }
- else if (strcmp (close_name->str, current_element (context)) != 0)
- {
- set_error (context,
- error,
- G_MARKUP_ERROR_PARSE,
- _("Element '%s' was closed, but the currently "
- "open element is '%s'"),
- close_name->str,
- current_element (context));
- }
- else
- {
- GError *tmp_error;
- advance_char (context);
- context->state = STATE_AFTER_CLOSE_ANGLE;
- context->start = NULL;
-
- possibly_finish_subparser (context);
-
- /* call the end_element callback */
- tmp_error = NULL;
- if (context->parser->end_element)
- (* context->parser->end_element) (context,
- close_name->str,
- context->user_data,
- &tmp_error);
-
- ensure_no_outstanding_subparser (context);
- pop_tag (context);
-
- if (tmp_error)
- propagate_error (context, error, tmp_error);
+ skip_spaces (context);
+
+ if (context->iter != context->current_text_end)
+ {
+ GString *close_name;
+
+ close_name = context->partial_chunk;
+ context->partial_chunk = NULL;
+
+ if (*context->iter != '>')
+ {
+ gchar buf[8];
+
+ set_error (context,
+ error,
+ G_MARKUP_ERROR_PARSE,
+ _("'%s' is not a valid character following "
+ "the close element name '%s'; the allowed "
+ "character is '>'"),
+ utf8_str (context->iter, buf),
+ close_name->str);
}
- context->partial_chunk = close_name;
- truncate_partial (context);
+ else if (context->tag_stack == NULL)
+ {
+ set_error (context,
+ error,
+ G_MARKUP_ERROR_PARSE,
+ _("Element '%s' was closed, no element "
+ "is currently open"),
+ close_name->str);
+ }
+ else if (strcmp (close_name->str, current_element (context)) != 0)
+ {
+ set_error (context,
+ error,
+ G_MARKUP_ERROR_PARSE,
+ _("Element '%s' was closed, but the currently "
+ "open element is '%s'"),
+ close_name->str,
+ current_element (context));
+ }
+ else
+ {
+ advance_char (context);
+ context->state = STATE_AFTER_CLOSE_ANGLE;
+ context->start = NULL;
+
+ emit_end_element (context, error);
+ }
+ context->partial_chunk = close_name;
+ truncate_partial (context);
}
break;
-
+
case STATE_INSIDE_PASSTHROUGH:
/* Possible next state: AFTER_CLOSE_ANGLE */
do
{
- if (*context->iter == '<')
- context->balance++;
- if (*context->iter == '>')
- {
- gchar *str;
- gsize len;
-
- context->balance--;
- add_to_partial (context, context->start, context->iter);
- context->start = context->iter;
-
- str = context->partial_chunk->str;
- len = context->partial_chunk->len;
-
- if (str[1] == '?' && str[len - 1] == '?')
- break;
- if (strncmp (str, "<!--", 4) == 0 &&
- strcmp (str + len - 2, "--") == 0)
- break;
- if (strncmp (str, "<![CDATA[", 9) == 0 &&
- strcmp (str + len - 2, "]]") == 0)
- break;
- if (strncmp (str, "<!DOCTYPE", 9) == 0 &&
- context->balance == 0)
- break;
- }
+ if (*context->iter == '<')
+ context->balance++;
+ if (*context->iter == '>')
+ {
+ gchar *str;
+ gsize len;
+
+ context->balance--;
+ add_to_partial (context, context->start, context->iter);
+ context->start = context->iter;
+
+ str = context->partial_chunk->str;
+ len = context->partial_chunk->len;
+
+ if (str[1] == '?' && str[len - 1] == '?')
+ break;
+ if (strncmp (str, "<!--", 4) == 0 &&
+ strcmp (str + len - 2, "--") == 0)
+ break;
+ if (strncmp (str, "<![CDATA[", 9) == 0 &&
+ strcmp (str + len - 2, "]]") == 0)
+ break;
+ if (strncmp (str, "<!DOCTYPE", 9) == 0 &&
+ context->balance == 0)
+ break;
+ }
}
while (advance_char (context));
advance_char (context); /* advance past close angle */
add_to_partial (context, context->start, context->iter);
- if (context->flags & G_MARKUP_TREAT_CDATA_AS_TEXT &&
- strncmp (context->partial_chunk->str, "<![CDATA[", 9) == 0)
- {
- if (context->parser->text &&
- text_validate (context,
- context->partial_chunk->str + 9,
- context->partial_chunk->len - 12,
- error))
- (*context->parser->text) (context,
- context->partial_chunk->str + 9,
- context->partial_chunk->len - 12,
- context->user_data,
- &tmp_error);
- }
- else if (context->parser->passthrough &&
- text_validate (context,
- context->partial_chunk->str,
- context->partial_chunk->len,
- error))
+ if (context->flags & G_MARKUP_TREAT_CDATA_AS_TEXT &&
+ strncmp (context->partial_chunk->str, "<![CDATA[", 9) == 0)
+ {
+ if (context->parser->text &&
+ text_validate (context,
+ context->partial_chunk->str + 9,
+ context->partial_chunk->len - 12,
+ error))
+ (*context->parser->text) (context,
+ context->partial_chunk->str + 9,
+ context->partial_chunk->len - 12,
+ context->user_data,
+ &tmp_error);
+ }
+ else if (context->parser->passthrough &&
+ text_validate (context,
+ context->partial_chunk->str,
+ context->partial_chunk->len,
+ error))
(*context->parser->passthrough) (context,
context->partial_chunk->str,
context->partial_chunk->len,
context->user_data,
&tmp_error);
-
+
truncate_partial (context);
if (tmp_error == NULL)
* g_markup_parse_context_end_parse:
* @context: a #GMarkupParseContext
* @error: return location for a #GError
- *
+ *
* Signals to the #GMarkupParseContext that all data has been
* fed into the parse context with g_markup_parse_context_parse().
+ *
* This function reports an error if the document isn't complete,
* for example if elements are still open.
- *
- * Return value: %TRUE on success, %FALSE if an error was set
- **/
+ *
+ * Returns: %TRUE on success, %FALSE if an error was set
+ */
gboolean
-g_markup_parse_context_end_parse (GMarkupParseContext *context,
- GError **error)
+g_markup_parse_context_end_parse (GMarkupParseContext *context,
+ GError **error)
{
g_return_val_if_fail (context != NULL, FALSE);
g_return_val_if_fail (!context->parsing, FALSE);
_("Document was empty or contained only whitespace"));
return FALSE;
}
-
+
context->parsing = TRUE;
-
+
switch (context->state)
{
case STATE_START:
current_element (context));
}
break;
-
+
case STATE_AFTER_ELISION_SLASH:
set_error (context, error, G_MARKUP_ERROR_PARSE,
_("Document ended unexpectedly, expected to see a close angle "
/**
* g_markup_parse_context_get_element:
* @context: a #GMarkupParseContext
- * @returns: the name of the currently open element, or %NULL
*
* Retrieves the name of the currently open element.
*
* give the element_name as passed to those functions. For the parent
* elements, see g_markup_parse_context_get_element_stack().
*
+ * Returns: the name of the currently open element, or %NULL
+ *
* Since: 2.2
- **/
-G_CONST_RETURN gchar *
+ */
+const gchar *
g_markup_parse_context_get_element (GMarkupParseContext *context)
{
g_return_val_if_fail (context != NULL, NULL);
- if (context->tag_stack == NULL)
+ if (context->tag_stack == NULL)
return NULL;
else
return current_element (context);
-}
+}
/**
* g_markup_parse_context_get_element_stack:
* @context: a #GMarkupParseContext
*
* Retrieves the element stack from the internal state of the parser.
+ *
* The returned #GSList is a list of strings where the first item is
* the currently open tag (as would be returned by
* g_markup_parse_context_get_element()) and the next item is its
* Returns: the element stack, which must not be modified
*
* Since: 2.16
- **/
-G_CONST_RETURN GSList *
+ */
+const GSList *
g_markup_parse_context_get_element_stack (GMarkupParseContext *context)
{
g_return_val_if_fail (context != NULL, NULL);
/**
* g_markup_parse_context_get_position:
* @context: a #GMarkupParseContext
- * @line_number: return location for a line number, or %NULL
- * @char_number: return location for a char-on-line number, or %NULL
+ * @line_number: (allow-none): return location for a line number, or %NULL
+ * @char_number: (allow-none): return location for a char-on-line number, or %NULL
*
* Retrieves the current line number and the number of the character on
* that line. Intended for use in error messages; there are no strict
* semantics for what constitutes the "current" line number other than
* "the best number we could come up with for error messages."
- *
- **/
+ */
void
g_markup_parse_context_get_position (GMarkupParseContext *context,
gint *line_number,
* g_markup_parse_context_get_user_data:
* @context: a #GMarkupParseContext
*
- * Returns the user_data associated with @context. This will either
- * be the user_data that was provided to g_markup_parse_context_new()
- * or to the most recent call of g_markup_parse_context_push().
+ * Returns the user_data associated with @context.
+ *
+ * This will either be the user_data that was provided to
+ * g_markup_parse_context_new() or to the most recent call
+ * of g_markup_parse_context_push().
*
* Returns: the provided user_data. The returned data belongs to
- * the markup context and will be freed when g_markup_context_free()
- * is called.
+ * the markup context and will be freed when
+ * g_markup_parse_context_free() is called.
*
* Since: 2.18
- **/
+ */
gpointer
g_markup_parse_context_get_user_data (GMarkupParseContext *context)
{
* Temporarily redirects markup data to a sub-parser.
*
* This function may only be called from the start_element handler of
- * a #GMarkupParser. It must be matched with a corresponding call to
+ * a #GMarkupParser. It must be matched with a corresponding call to
* g_markup_parse_context_pop() in the matching end_element handler
* (except in the case that the parser aborts due to an error).
*
* All tags, text and other data between the matching tags is
- * redirected to the subparser given by @parser. @user_data is used
- * as the user_data for that parser. @user_data is also passed to the
- * error callback in the event that an error occurs. This includes
+ * redirected to the subparser given by @parser. @user_data is used
+ * as the user_data for that parser. @user_data is also passed to the
+ * error callback in the event that an error occurs. This includes
* errors that occur in subparsers of the subparser.
*
* The end tag matching the start tag for which this call was made is
* handled by the previous parser (which is given its own user_data)
* which is why g_markup_parse_context_pop() is provided to allow "one
- * last access" to the @user_data provided to this function. In the
+ * last access" to the @user_data provided to this function. In the
* case of error, the @user_data provided here is passed directly to
- * the error callback of the subparser and g_markup_parse_context()
- * should not be called. In either case, if @user_data was allocated
+ * the error callback of the subparser and g_markup_parse_context_pop()
+ * should not be called. In either case, if @user_data was allocated
* then it ought to be freed from both of these locations.
*
* This function is not intended to be directly called by users
- * interested in invoking subparsers. Instead, it is intended to be
+ * interested in invoking subparsers. Instead, it is intended to be
* used by the subparsers themselves to implement a higher-level
* interface.
*
* As an example, see the following implementation of a simple
* parser that counts the number of tags encountered.
*
- * |[
+ * |[<!-- language="C" -->
* typedef struct
* {
* gint tag_count;
* } CounterData;
- *
+ *
* static void
* counter_start_element (GMarkupParseContext *context,
* const gchar *element_name,
* GError **error)
* {
* CounterData *data = user_data;
- *
+ *
* data->tag_count++;
* }
- *
+ *
* static void
* counter_error (GMarkupParseContext *context,
* GError *error,
* gpointer user_data)
* {
* CounterData *data = user_data;
- *
+ *
* g_slice_free (CounterData, data);
* }
- *
+ *
* static GMarkupParser counter_subparser =
* {
* counter_start_element,
* In order to allow this parser to be easily used as a subparser, the
* following interface is provided:
*
- * |[
+ * |[<!-- language="C" -->
* void
* start_counting (GMarkupParseContext *context)
* {
* CounterData *data = g_slice_new (CounterData);
- *
+ *
* data->tag_count = 0;
* g_markup_parse_context_push (context, &counter_subparser, data);
* }
- *
+ *
* gint
* end_counting (GMarkupParseContext *context)
* {
* CounterData *data = g_markup_parse_context_pop (context);
* int result;
- *
+ *
* result = data->tag_count;
* g_slice_free (CounterData, data);
- *
+ *
* return result;
* }
* ]|
*
* The subparser would then be used as follows:
*
- * |[
+ * |[<!-- language="C" -->
* static void start_element (context, element_name, ...)
* {
* if (strcmp (element_name, "count-these") == 0)
* start_counting (context);
- *
- * /* else, handle other tags... */
+ *
+ * // else, handle other tags...
* }
- *
+ *
* static void end_element (context, element_name, ...)
* {
* if (strcmp (element_name, "count-these") == 0)
* g_print ("Counted %d tags\n", end_counting (context));
- *
- * /* else, handle other tags... */
+ *
+ * // else, handle other tags...
* }
* ]|
*
**/
void
g_markup_parse_context_push (GMarkupParseContext *context,
- GMarkupParser *parser,
+ const GMarkupParser *parser,
gpointer user_data)
{
GMarkupRecursionTracker *tracker;
* Completes the process of a temporary sub-parser redirection.
*
* This function exists to collect the user_data allocated by a
- * matching call to g_markup_parse_context_push(). It must be called
+ * matching call to g_markup_parse_context_push(). It must be called
* in the end_element handler corresponding to the start_element
- * handler during which g_markup_parse_context_push() was called. You
- * must not call this function from the error callback -- the
+ * handler during which g_markup_parse_context_push() was called.
+ * You must not call this function from the error callback -- the
* @user_data is provided directly to the callback in that case.
*
* This function is not intended to be directly called by users
- * interested in invoking subparsers. Instead, it is intended to be
- * used by the subparsers themselves to implement a higher-level
+ * interested in invoking subparsers. Instead, it is intended to
+ * be used by the subparsers themselves to implement a higher-level
* interface.
*
- * Returns: the user_data passed to g_markup_parse_context_push().
+ * Returns: the user data passed to g_markup_parse_context_push()
*
* Since: 2.18
- **/
+ */
gpointer
g_markup_parse_context_pop (GMarkupParseContext *context)
{
g_assert (context->awaiting_pop);
context->awaiting_pop = FALSE;
-
+
/* valgrind friendliness */
user_data = context->held_user_data;
context->held_user_data = NULL;
static void
append_escaped_text (GString *str,
const gchar *text,
- gssize length)
+ gssize length)
{
const gchar *p;
const gchar *end;
* g_markup_escape_text:
* @text: some valid UTF-8 text
* @length: length of @text in bytes, or -1 if the text is nul-terminated
- *
+ *
* Escapes text so that the markup parser will parse it verbatim.
* Less than, greater than, ampersand, etc. are replaced with the
* corresponding entities. This function would typically be used
* when writing out a file to be parsed with the markup parser.
- *
+ *
* Note that this function doesn't protect whitespace and line endings
* from being processed according to the XML rules for normalization
* of line endings and attribute values.
*
* Note also that this function will produce character references in
- * the range of &#x1; ... &#x1f; for all control sequences
+ * the range of  ...  for all control sequences
* except for tabstop, newline and carriage return. The character
* references in this range are not valid XML 1.0, but they are
* valid XML 1.1 and will be accepted by the GMarkup parser.
- *
- * Return value: a newly allocated string with the escaped text
- **/
+ *
+ * Returns: a newly allocated string with the escaped text
+ */
gchar*
g_markup_escape_text (const gchar *text,
- gssize length)
+ gssize length)
{
GString *str;
return g_string_free (str, FALSE);
}
-/**
+/*
* find_conversion:
* @format: a printf-style format string
* @after: location to store a pointer to the character after
- * the returned conversion. On a %NULL return, returns the
- * pointer to the trailing NUL in the string
- *
+ * the returned conversion. On a %NULL return, returns the
+ * pointer to the trailing NUL in the string
+ *
* Find the next conversion in a printf-style format string.
* Partially based on code from printf-parser.c,
* Copyright (C) 1999-2000, 2002-2003 Free Software Foundation, Inc.
- *
- * Return value: pointer to the next conversion in @format,
+ *
+ * Returns: pointer to the next conversion in @format,
* or %NULL, if none.
- **/
+ */
static const char *
find_conversion (const char *format,
- const char **after)
+ const char **after)
{
const char *start = format;
const char *cp;
-
+
while (*start != '\0' && *start != '%')
start++;
*after = cp;
return NULL;
}
-
+
/* Test for positional argument. */
if (*cp >= '0' && *cp <= '9')
{
const char *np;
-
+
for (np = cp; *np >= '0' && *np <= '9'; np++)
- ;
+ ;
if (*np == '$')
- cp = np + 1;
+ cp = np + 1;
}
/* Skip the flags. */
for (;;)
{
if (*cp == '\'' ||
- *cp == '-' ||
- *cp == '+' ||
- *cp == ' ' ||
- *cp == '#' ||
- *cp == '0')
- cp++;
+ *cp == '-' ||
+ *cp == '+' ||
+ *cp == ' ' ||
+ *cp == '#' ||
+ *cp == '0')
+ cp++;
else
- break;
+ break;
}
/* Skip the field width. */
/* Test for positional argument. */
if (*cp >= '0' && *cp <= '9')
- {
- const char *np;
-
- for (np = cp; *np >= '0' && *np <= '9'; np++)
- ;
- if (*np == '$')
- cp = np + 1;
- }
+ {
+ const char *np;
+
+ for (np = cp; *np >= '0' && *np <= '9'; np++)
+ ;
+ if (*np == '$')
+ cp = np + 1;
+ }
}
else
{
for (; *cp >= '0' && *cp <= '9'; cp++)
- ;
+ ;
}
/* Skip the precision. */
{
cp++;
if (*cp == '*')
- {
- /* Test for positional argument. */
- if (*cp >= '0' && *cp <= '9')
- {
- const char *np;
-
- for (np = cp; *np >= '0' && *np <= '9'; np++)
- ;
- if (*np == '$')
- cp = np + 1;
- }
- }
+ {
+ /* Test for positional argument. */
+ if (*cp >= '0' && *cp <= '9')
+ {
+ const char *np;
+
+ for (np = cp; *np >= '0' && *np <= '9'; np++)
+ ;
+ if (*np == '$')
+ cp = np + 1;
+ }
+ }
else
- {
- for (; *cp >= '0' && *cp <= '9'; cp++)
- ;
- }
+ {
+ for (; *cp >= '0' && *cp <= '9'; cp++)
+ ;
+ }
}
/* Skip argument type/size specifiers. */
while (*cp == 'h' ||
- *cp == 'L' ||
- *cp == 'l' ||
- *cp == 'j' ||
- *cp == 'z' ||
- *cp == 'Z' ||
- *cp == 't')
+ *cp == 'L' ||
+ *cp == 'l' ||
+ *cp == 'j' ||
+ *cp == 'z' ||
+ *cp == 'Z' ||
+ *cp == 't')
cp++;
-
+
/* Skip the conversion character. */
cp++;
* g_markup_vprintf_escaped:
* @format: printf() style format string
* @args: variable argument list, similar to vprintf()
- *
+ *
* Formats the data in @args according to @format, escaping
* all string and character arguments in the fashion
* of g_markup_escape_text(). See g_markup_printf_escaped().
- *
- * Return value: newly allocated result from formatting
+ *
+ * Returns: newly allocated result from formatting
* operation. Free with g_free().
*
* Since: 2.4
- **/
-char *
-g_markup_vprintf_escaped (const char *format,
- va_list args)
+ */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+
+gchar *
+g_markup_vprintf_escaped (const gchar *format,
+ va_list args)
{
GString *format1;
GString *format2;
* then use the normal g_strdup_vprintf() to format the arguments
* with the two new format strings. By comparing the results,
* we can figure out what segments of the output come from
- * the the original format string, and what from the arguments,
+ * the original format string, and what from the arguments,
* and thus know what portions of the string to escape.
*
* For instance, for:
* To find the span of the first argument, we find the first position
* where the two arguments differ, which tells us that the first
* argument formatted to "Susan & Fred". We then escape that
- * to "Susan & Fred" and join up with the intermediate portions
+ * to "Susan & Fred" and join up with the intermediate portions
* of the format string and the second argument to get
- * "Susan & Fred ate 5 apples".
+ * "Susan & Fred ate 5 apples".
*/
/* Create the two modified format strings
const char *after;
const char *conv = find_conversion (p, &after);
if (!conv)
- break;
+ break;
g_string_append_len (format1, conv, after - conv);
g_string_append_c (format1, 'X');
/* Use them to format the arguments
*/
G_VA_COPY (args2, args);
-
+
output1 = g_strdup_vprintf (format1->str, args);
+
if (!output1)
{
va_end (args2);
goto cleanup;
}
-
+
output2 = g_strdup_vprintf (format2->str, args2);
va_end (args2);
if (!output2)
goto cleanup;
-
result = g_string_new (NULL);
/* Iterate through the original format string again,
const char *output_start;
const char *conv = find_conversion (p, &after);
char *escaped;
-
- if (!conv) /* The end, after points to the trailing \0 */
- {
- g_string_append_len (result, p, after - p);
- break;
- }
+
+ if (!conv) /* The end, after points to the trailing \0 */
+ {
+ g_string_append_len (result, p, after - p);
+ break;
+ }
g_string_append_len (result, p, conv - p);
output_start = op1;
while (*op1 == *op2)
- {
- op1++;
- op2++;
- }
-
+ {
+ op1++;
+ op2++;
+ }
+
escaped = g_markup_escape_text (output_start, op1 - output_start);
g_string_append (result, escaped);
g_free (escaped);
-
+
p = after;
op1++;
op2++;
return NULL;
}
+#pragma GCC diagnostic pop
+
/**
* g_markup_printf_escaped:
* @format: printf() style format string
- * @Varargs: the arguments to insert in the format string
- *
+ * @...: the arguments to insert in the format string
+ *
* Formats arguments according to @format, escaping
* all string and character arguments in the fashion
* of g_markup_escape_text(). This is useful when you
* output, without having to worry that the strings
* might themselves contain markup.
*
- * |[
- * const char *store = "Fortnum & Mason";
+ * |[<!-- language="C" -->
+ * const char *store = "Fortnum & Mason";
* const char *item = "Tea";
* char *output;
- *
- * output = g_markup_printf_escaped ("<purchase>"
- * "<store>%s</store>"
- * "<item>%s</item>"
- * "</purchase>",
+ *
+ * output = g_markup_printf_escaped ("<purchase>"
+ * "<store>%s</store>"
+ * "<item>%s</item>"
+ * "</purchase>",
* store, item);
* ]|
- *
- * Return value: newly allocated result from formatting
- * operation. Free with g_free().
+ *
+ * Returns: newly allocated result from formatting
+ * operation. Free with g_free().
*
* Since: 2.4
- **/
-char *
-g_markup_printf_escaped (const char *format, ...)
+ */
+gchar *
+g_markup_printf_escaped (const gchar *format, ...)
{
char *result;
va_list args;
-
+
va_start (args, format);
result = g_markup_vprintf_escaped (format, args);
va_end (args);
/**
* GMarkupCollectType:
* @G_MARKUP_COLLECT_INVALID: used to terminate the list of attributes
- * to collect.
+ * to collect
* @G_MARKUP_COLLECT_STRING: collect the string pointer directly from
- * the attribute_values[] array. Expects a
- * parameter of type (const char **). If
- * %G_MARKUP_COLLECT_OPTIONAL is specified
- * and the attribute isn't present then the
- * pointer will be set to %NULL.
+ * the attribute_values[] array. Expects a parameter of type (const
+ * char **). If %G_MARKUP_COLLECT_OPTIONAL is specified and the
+ * attribute isn't present then the pointer will be set to %NULL
* @G_MARKUP_COLLECT_STRDUP: as with %G_MARKUP_COLLECT_STRING, but
- * expects a parameter of type (char **) and
- * g_strdup()s the returned pointer. The
- * pointer must be freed with g_free().
+ * expects a parameter of type (char **) and g_strdup()s the
+ * returned pointer. The pointer must be freed with g_free()
* @G_MARKUP_COLLECT_BOOLEAN: expects a parameter of type (gboolean *)
- * and parses the attribute value as a
- * boolean. Sets %FALSE if the attribute
- * isn't present. Valid boolean values
- * consist of (case insensitive) "false",
- * "f", "no", "n", "0" and "true", "t",
- * "yes", "y", "1".
+ * and parses the attribute value as a boolean. Sets %FALSE if the
+ * attribute isn't present. Valid boolean values consist of
+ * (case-insensitive) "false", "f", "no", "n", "0" and "true", "t",
+ * "yes", "y", "1"
* @G_MARKUP_COLLECT_TRISTATE: as with %G_MARKUP_COLLECT_BOOLEAN, but
- * in the case of a missing attribute a
- * value is set that compares equal to
- * neither %FALSE nor %TRUE.
- * G_MARKUP_COLLECT_OPTIONAL is implied.
- * @G_MARKUP_COLLECT_OPTIONAL: can be bitwise ORed with the other
- * fields. If present, allows the
- * attribute not to appear. A default
- * value is set depending on what value
- * type is used.
- *
- * A mixed enumerated type and flags field. You must specify one type
- * (string, strdup, boolean, tristate). Additionally, you may
- * optionally bitwise OR the type with the flag
- * %G_MARKUP_COLLECT_OPTIONAL.
+ * in the case of a missing attribute a value is set that compares
+ * equal to neither %FALSE nor %TRUE G_MARKUP_COLLECT_OPTIONAL is
+ * implied
+ * @G_MARKUP_COLLECT_OPTIONAL: can be bitwise ORed with the other fields.
+ * If present, allows the attribute not to appear. A default value
+ * is set depending on what value type is used
+ *
+ * A mixed enumerated type and flags field. You must specify one type
+ * (string, strdup, boolean, tristate). Additionally, you may optionally
+ * bitwise OR the type with the flag %G_MARKUP_COLLECT_OPTIONAL.
*
* It is likely that this enum will be extended in the future to
* support other types.
- **/
+ */
/**
* g_markup_collect_attributes:
* @attribute_names: the attribute names
* @attribute_values: the attribute values
* @error: a pointer to a #GError or %NULL
- * @first_type: the #GMarkupCollectType of the
- * first attribute
+ * @first_type: the #GMarkupCollectType of the first attribute
* @first_attr: the name of the first attribute
- * @...: a pointer to the storage location of the
- * first attribute (or %NULL), followed by
- * more types names and pointers, ending
- * with %G_MARKUP_COLLECT_INVALID.
- *
- * Collects the attributes of the element from the
- * data passed to the #GMarkupParser start_element
- * function, dealing with common error conditions
- * and supporting boolean values.
+ * @...: a pointer to the storage location of the first attribute
+ * (or %NULL), followed by more types names and pointers, ending
+ * with %G_MARKUP_COLLECT_INVALID
+ *
+ * Collects the attributes of the element from the data passed to the
+ * #GMarkupParser start_element function, dealing with common error
+ * conditions and supporting boolean values.
*
- * This utility function is not required to write
- * a parser but can save a lot of typing.
+ * This utility function is not required to write a parser but can save
+ * a lot of typing.
*
- * The @element_name, @attribute_names,
- * @attribute_values and @error parameters passed
- * to the start_element callback should be passed
+ * The @element_name, @attribute_names, @attribute_values and @error
+ * parameters passed to the start_element callback should be passed
* unmodified to this function.
*
- * Following these arguments is a list of
- * "supported" attributes to collect. It is an
- * error to specify multiple attributes with the
- * same name. If any attribute not in the list
- * appears in the @attribute_names array then an
+ * Following these arguments is a list of "supported" attributes to collect.
+ * It is an error to specify multiple attributes with the same name. If any
+ * attribute not in the list appears in the @attribute_names array then an
* unknown attribute error will result.
*
- * The #GMarkupCollectType field allows specifying
- * the type of collection to perform and if a
- * given attribute must appear or is optional.
+ * The #GMarkupCollectType field allows specifying the type of collection
+ * to perform and if a given attribute must appear or is optional.
*
- * The attribute name is simply the name of the
- * attribute to collect.
+ * The attribute name is simply the name of the attribute to collect.
*
- * The pointer should be of the appropriate type
- * (see the descriptions under
- * #GMarkupCollectType) and may be %NULL in case a
- * particular attribute is to be allowed but
- * ignored.
+ * The pointer should be of the appropriate type (see the descriptions
+ * under #GMarkupCollectType) and may be %NULL in case a particular
+ * attribute is to be allowed but ignored.
*
- * This function deals with issuing errors for missing attributes
- * (of type %G_MARKUP_ERROR_MISSING_ATTRIBUTE), unknown attributes
- * (of type %G_MARKUP_ERROR_UNKNOWN_ATTRIBUTE) and duplicate
- * attributes (of type %G_MARKUP_ERROR_INVALID_CONTENT) as well
+ * This function deals with issuing errors for missing attributes
+ * (of type %G_MARKUP_ERROR_MISSING_ATTRIBUTE), unknown attributes
+ * (of type %G_MARKUP_ERROR_UNKNOWN_ATTRIBUTE) and duplicate
+ * attributes (of type %G_MARKUP_ERROR_INVALID_CONTENT) as well
* as parse errors for boolean-valued attributes (again of type
- * %G_MARKUP_ERROR_INVALID_CONTENT). In all of these cases %FALSE
+ * %G_MARKUP_ERROR_INVALID_CONTENT). In all of these cases %FALSE
* will be returned and @error will be set as appropriate.
*
- * Return value: %TRUE if successful
+ * Returns: %TRUE if successful
*
* Since: 2.16
**/
ptr = va_arg (ap, gpointer);
- if (ptr == NULL)
- continue;
-
- switch (type & (G_MARKUP_COLLECT_OPTIONAL - 1))
+ if (ptr != NULL)
{
- case G_MARKUP_COLLECT_STRDUP:
- if (written)
- g_free (*(char **) ptr);
+ switch (type & (G_MARKUP_COLLECT_OPTIONAL - 1))
+ {
+ case G_MARKUP_COLLECT_STRDUP:
+ if (written)
+ g_free (*(char **) ptr);
- case G_MARKUP_COLLECT_STRING:
- *(char **) ptr = NULL;
- break;
+ case G_MARKUP_COLLECT_STRING:
+ *(char **) ptr = NULL;
+ break;
- case G_MARKUP_COLLECT_BOOLEAN:
- *(gboolean *) ptr = FALSE;
- break;
+ case G_MARKUP_COLLECT_BOOLEAN:
+ *(gboolean *) ptr = FALSE;
+ break;
- case G_MARKUP_COLLECT_TRISTATE:
- *(gboolean *) ptr = -1;
- break;
+ case G_MARKUP_COLLECT_TRISTATE:
+ *(gboolean *) ptr = -1;
+ break;
+ }
}
type = va_arg (ap, GMarkupCollectType);
attr = va_arg (ap, const char *);
-
- if (written)
- written--;
}
va_end (ap);
projects / platform / upstream / glib.git / blobdiff