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gdb_xml_parser: make data fields private and make more functions methods
This patch makes the data fields of gdb_xml_parser private, and makes more functions be gdb_xml_parser methods. This is mostly for better encapsulation. Some free functions have their parsing-related guts converted to methods, while the free functions remain, as they're used as expat callbacks. Now their only job is to be small shims that restore back the gdb_xml_parser type, defer work to the corresponding method, and make sure C++ exceptions don't cross expat. More C++-fycation of the XML parsers built on top of gdb_xml_parser could follow, but this was my stopping point. gdb/ChangeLog: 2017-04-18 Pedro Alves <palves@redhat.com> * xml-support.c (gdb_xml_parser) <use_dtd, dtd_name, parse, vdebug, verror, body_text, start_element, end_element, name, user_data, set_is_xinclude, set_error, expat_parser>: New methods. <name, user_data, expat_parser, scopes, error, last_line, dtd_name, is_xinclude>: Make private and add m_ prefix. (gdb_xml_parser::body_text): New method, based on ... (gdb_xml_body_text): ... this. Adjust. (gdb_xml_parser::vdebug): New method, based on ... (gdb_xml_debug): ... this. Adjust. (gdb_xml_parser::verror): New method, based on ... (gdb_xml_error): ... this. Adjust. (gdb_xml_parser::start_element): New method, based on ... (gdb_xml_start_element): ... this. Adjust. (gdb_xml_start_element_wrapper): Defer to gdb_xml_parser::start_element and gdb_xml_parser::set_error. (gdb_xml_parser::end_element): New method, based on ... (gdb_xml_end_element_wrapper): ... this. Adjust. (gdb_xml_parser::~gdb_xml_parser): Adjust. (gdb_xml_parser::gdb_xml_parser): Adjust to field renames. (gdb_xml_parser::use_dtd): New method, based on ... (gdb_xml_use_dtd): ... this. Adjust. (gdb_xml_parser::parse): New method, based on ... (gdb_xml_parse): ... this. Adjust. (gdb_xml_parse_quick): Adjust to call the parser's parse method. (xinclude_start_include): Adjust to call the parser's name method. (xml_xinclude_default, xml_xinclude_start_doctype) (xml_xinclude_end_doctype): Adjust to call the parser's user_data method. (xml_process_xincludes): Adjust to call parser methods. * xml-support.h (gdb_xml_use_dtd, gdb_xml_parse): Delete declarations.
This commit is contained in:
Pedro Alves
parent
bd8a901f9e
commit
4895cde297
@ -1,3 +1,37 @@
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2017-04-18 Pedro Alves <palves@redhat.com>
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* xml-support.c (gdb_xml_parser) <use_dtd, dtd_name, parse,
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vdebug, verror, body_text, start_element, end_element, name,
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user_data, set_is_xinclude, set_error, expat_parser>: New methods.
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<name, user_data, expat_parser, scopes, error, last_line, dtd_name,
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is_xinclude>: Make private and add m_ prefix.
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(gdb_xml_parser::body_text): New method, based on ...
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(gdb_xml_body_text): ... this. Adjust.
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(gdb_xml_parser::vdebug): New method, based on ...
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(gdb_xml_debug): ... this. Adjust.
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(gdb_xml_parser::verror): New method, based on ...
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(gdb_xml_error): ... this. Adjust.
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(gdb_xml_parser::start_element): New method, based on ...
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(gdb_xml_start_element): ... this. Adjust.
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(gdb_xml_start_element_wrapper): Defer to
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gdb_xml_parser::start_element and gdb_xml_parser::set_error.
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(gdb_xml_parser::end_element): New method, based on ...
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(gdb_xml_end_element_wrapper): ... this. Adjust.
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(gdb_xml_parser::~gdb_xml_parser): Adjust.
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(gdb_xml_parser::gdb_xml_parser): Adjust to field renames.
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(gdb_xml_parser::use_dtd): New method, based on ...
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(gdb_xml_use_dtd): ... this. Adjust.
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(gdb_xml_parser::parse): New method, based on ...
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(gdb_xml_parse): ... this. Adjust.
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(gdb_xml_parse_quick): Adjust to call the parser's parse method.
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(xinclude_start_include): Adjust to call the parser's name method.
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(xml_xinclude_default, xml_xinclude_start_doctype)
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(xml_xinclude_end_doctype): Adjust to call the parser's user_data
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method.
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(xml_process_xincludes): Adjust to call parser methods.
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* xml-support.h (gdb_xml_use_dtd, gdb_xml_parse): Delete
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declarations.
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2017-04-18 Pedro Alves <palves@redhat.com>
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* tracefile-tfile.c (tfile_write_tdesc): Adjust to use
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@ -72,73 +72,156 @@ struct gdb_xml_parser
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void *user_data);
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~gdb_xml_parser();
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XML_Parser expat_parser; /* The underlying expat parser. */
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/* Associate DTD_NAME, which must be the name of a compiled-in DTD,
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with the parser. */
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void use_dtd (const char *dtd_name);
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const char *name; /* Name of this parser. */
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void *user_data; /* The user's callback data, for handlers. */
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/* Return the name of the expected / default DTD, if specified. */
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const char *dtd_name ()
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{ return m_dtd_name; }
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/* Invoke the parser on BUFFER. BUFFER is the data to parse, which
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should be NUL-terminated.
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The return value is 0 for success or -1 for error. It may throw,
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but only if something unexpected goes wrong during parsing; parse
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errors will be caught, warned about, and reported as failure. */
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int parse (const char *buffer);
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/* Issue a debugging message. */
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void vdebug (const char *format, va_list ap)
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ATTRIBUTE_PRINTF (2, 0);
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/* Issue an error message, and stop parsing. */
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void verror (const char *format, va_list ap)
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ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 0);
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void body_text (const XML_Char *text, int length);
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void start_element (const XML_Char *name, const XML_Char **attrs);
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void end_element (const XML_Char *name);
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/* Return the name of this parser. */
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const char *name ()
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{ return m_name; }
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/* Return the user's callback data, for handlers. */
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void *user_data ()
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{ return m_user_data; };
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/* Are we the special <xi:include> parser? */
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void set_is_xinclude (bool is_xinclude)
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{ m_is_xinclude = is_xinclude; }
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/* A thrown error, if any. */
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void set_error (gdb_exception error)
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{
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m_error = error;
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#ifdef HAVE_XML_STOPPARSER
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XML_StopParser (m_expat_parser, XML_FALSE);
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#endif
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}
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/* Return the underlying expat parser. */
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XML_Parser expat_parser ()
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{ return m_expat_parser; }
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private:
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/* The underlying expat parser. */
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XML_Parser m_expat_parser;
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/* Name of this parser. */
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const char *m_name;
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/* The user's callback data, for handlers. */
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void *m_user_data;
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/* Scoping stack. */
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std::vector<scope_level> scopes;
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std::vector<scope_level> m_scopes;
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struct gdb_exception error; /* A thrown error, if any. */
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int last_line; /* The line of the thrown error, or 0. */
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/* A thrown error, if any. */
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struct gdb_exception m_error;
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const char *dtd_name; /* The name of the expected / default DTD,
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if specified. */
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bool is_xinclude; /* Are we the special <xi:include> parser? */
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/* The line of the thrown error, or 0. */
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int m_last_line;
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/* The name of the expected / default DTD, if specified. */
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const char *m_dtd_name;
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/* Are we the special <xi:include> parser? */
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bool m_is_xinclude;
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};
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/* Process some body text. We accumulate the text for later use; it's
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wrong to do anything with it immediately, because a single block of
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text might be broken up into multiple calls to this function. */
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void
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gdb_xml_parser::body_text (const XML_Char *text, int length)
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{
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if (m_error.reason < 0)
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return;
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scope_level &scope = m_scopes.back ();
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scope.body.append (text, length);
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}
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static void
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gdb_xml_body_text (void *data, const XML_Char *text, int length)
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{
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struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data;
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if (parser->error.reason < 0)
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return;
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scope_level &scope = parser->scopes.back ();
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scope.body.append (text, length);
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parser->body_text (text, length);
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}
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/* Issue a debugging message from one of PARSER's handlers. */
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void
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gdb_xml_debug (struct gdb_xml_parser *parser, const char *format, ...)
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gdb_xml_parser::vdebug (const char *format, va_list ap)
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{
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int line = XML_GetCurrentLineNumber (parser->expat_parser);
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va_list ap;
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int line = XML_GetCurrentLineNumber (m_expat_parser);
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char *message;
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if (!debug_xml)
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return;
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va_start (ap, format);
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message = xstrvprintf (format, ap);
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if (line)
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fprintf_unfiltered (gdb_stderr, "%s (line %d): %s\n",
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parser->name, line, message);
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m_name, line, message);
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else
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fprintf_unfiltered (gdb_stderr, "%s: %s\n",
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parser->name, message);
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m_name, message);
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xfree (message);
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}
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void
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gdb_xml_debug (struct gdb_xml_parser *parser, const char *format, ...)
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{
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if (!debug_xml)
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return;
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va_list ap;
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va_start (ap, format);
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parser->vdebug (format, ap);
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va_end (ap);
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}
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/* Issue an error message from one of PARSER's handlers, and stop
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parsing. */
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void
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gdb_xml_parser::verror (const char *format, va_list ap)
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{
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int line = XML_GetCurrentLineNumber (m_expat_parser);
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m_last_line = line;
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throw_verror (XML_PARSE_ERROR, format, ap);
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}
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void
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gdb_xml_error (struct gdb_xml_parser *parser, const char *format, ...)
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{
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int line = XML_GetCurrentLineNumber (parser->expat_parser);
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va_list ap;
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parser->last_line = line;
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va_start (ap, format);
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throw_verror (XML_PARSE_ERROR, format, ap);
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parser->verror (format, ap);
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va_end (ap);
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}
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/* Find the attribute named NAME in the set of parsed attributes
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@ -171,15 +254,16 @@ gdb_xml_values_cleanup (void *data)
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VEC_free (gdb_xml_value_s, *values);
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}
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/* Handle the start of an element. DATA is our local XML parser, NAME
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is the element, and ATTRS are the names and values of this
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element's attributes. */
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/* Handle the start of an element. NAME is the element, and ATTRS are
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the names and values of this element's attributes. */
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static void
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gdb_xml_start_element (void *data, const XML_Char *name,
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const XML_Char **attrs)
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void
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gdb_xml_parser::start_element (const XML_Char *name,
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const XML_Char **attrs)
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{
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struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data;
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if (m_error.reason < 0)
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return;
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const struct gdb_xml_element *element;
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const struct gdb_xml_attribute *attribute;
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VEC(gdb_xml_value_s) *attributes = NULL;
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@ -194,12 +278,12 @@ gdb_xml_start_element (void *data, const XML_Char *name,
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recursion unrolls all such elements will have been popped back
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already, but if one of those pushes reallocates the vector,
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previous element references will be invalidated. */
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parser->scopes.emplace_back ();
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m_scopes.emplace_back ();
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/* Get a reference to the current scope. */
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scope_level &scope = parser->scopes[parser->scopes.size () - 2];
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scope_level &scope = m_scopes[m_scopes.size () - 2];
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gdb_xml_debug (parser, _("Entering element <%s>"), name);
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gdb_xml_debug (this, _("Entering element <%s>"), name);
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/* Find this element in the list of the current scope's allowed
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children. Record that we've seen it. */
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@ -215,21 +299,21 @@ gdb_xml_start_element (void *data, const XML_Char *name,
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/* If we're working on XInclude, <xi:include> can be the child
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of absolutely anything. Copy the previous scope's element
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list into the new scope even if there was no match. */
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if (parser->is_xinclude)
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if (m_is_xinclude)
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{
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XML_DefaultCurrent (parser->expat_parser);
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XML_DefaultCurrent (m_expat_parser);
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scope_level &unknown_scope = parser->scopes.back ();
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scope_level &unknown_scope = m_scopes.back ();
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unknown_scope.elements = scope.elements;
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return;
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}
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gdb_xml_debug (parser, _("Element <%s> unknown"), name);
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gdb_xml_debug (this, _("Element <%s> unknown"), name);
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return;
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}
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if (!(element->flags & GDB_XML_EF_REPEATABLE) && (seen & scope.seen))
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gdb_xml_error (parser, _("Element <%s> only expected once"), name);
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gdb_xml_error (this, _("Element <%s> only expected once"), name);
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scope.seen |= seen;
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@ -253,14 +337,14 @@ gdb_xml_start_element (void *data, const XML_Char *name,
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if (*p != NULL && val == NULL)
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{
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gdb_xml_debug (parser, _("Attribute \"%s\" missing a value"),
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gdb_xml_debug (this, _("Attribute \"%s\" missing a value"),
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attribute->name);
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continue;
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}
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if (*p == NULL && !(attribute->flags & GDB_XML_AF_OPTIONAL))
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{
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gdb_xml_error (parser, _("Required attribute \"%s\" of "
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gdb_xml_error (this, _("Required attribute \"%s\" of "
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"<%s> not specified"),
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attribute->name, element->name);
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continue;
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@ -269,11 +353,11 @@ gdb_xml_start_element (void *data, const XML_Char *name,
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if (*p == NULL)
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continue;
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gdb_xml_debug (parser, _("Parsing attribute %s=\"%s\""),
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gdb_xml_debug (this, _("Parsing attribute %s=\"%s\""),
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attribute->name, val);
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if (attribute->handler)
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parsed_value = attribute->handler (parser, attribute, val);
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parsed_value = attribute->handler (this, attribute, val);
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else
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parsed_value = xstrdup (val);
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@ -296,19 +380,19 @@ gdb_xml_start_element (void *data, const XML_Char *name,
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break;
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if (attribute == NULL || attribute->name == NULL)
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gdb_xml_debug (parser, _("Ignoring unknown attribute %s"), *p);
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gdb_xml_debug (this, _("Ignoring unknown attribute %s"), *p);
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}
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}
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/* Call the element handler if there is one. */
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if (element->start_handler)
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element->start_handler (parser, element, parser->user_data, attributes);
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element->start_handler (this, element, m_user_data, attributes);
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/* Fill in a new scope level. Note that we must delay getting a
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back reference till here because above we might have recursed,
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which may have reallocated the vector which invalidates
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iterators/pointers/references. */
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scope_level &new_scope = parser->scopes.back ();
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scope_level &new_scope = m_scopes.back ();
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new_scope.element = element;
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new_scope.elements = element->children;
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@ -324,41 +408,37 @@ gdb_xml_start_element_wrapper (void *data, const XML_Char *name,
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{
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struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data;
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if (parser->error.reason < 0)
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return;
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TRY
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{
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gdb_xml_start_element (data, name, attrs);
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parser->start_element (name, attrs);
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}
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CATCH (ex, RETURN_MASK_ALL)
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{
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parser->error = ex;
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#ifdef HAVE_XML_STOPPARSER
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XML_StopParser (parser->expat_parser, XML_FALSE);
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#endif
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parser->set_error (ex);
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}
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END_CATCH
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}
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/* Handle the end of an element. PARSER is our local XML parser, and
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NAME is the current element. */
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/* Handle the end of an element. NAME is the current element. */
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static void
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gdb_xml_end_element (gdb_xml_parser *parser, const XML_Char *name)
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void
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gdb_xml_parser::end_element (const XML_Char *name)
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{
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struct scope_level *scope = &parser->scopes.back ();
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if (m_error.reason < 0)
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return;
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struct scope_level *scope = &m_scopes.back ();
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const struct gdb_xml_element *element;
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unsigned int seen;
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gdb_xml_debug (parser, _("Leaving element <%s>"), name);
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gdb_xml_debug (this, _("Leaving element <%s>"), name);
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for (element = scope->elements, seen = 1;
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element != NULL && element->name != NULL;
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element++, seen <<= 1)
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if ((scope->seen & seen) == 0
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&& (element->flags & GDB_XML_EF_OPTIONAL) == 0)
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gdb_xml_error (parser, _("Required element <%s> is missing"),
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gdb_xml_error (this, _("Required element <%s> is missing"),
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element->name);
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/* Call the element processor. */
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@ -383,14 +463,14 @@ gdb_xml_end_element (gdb_xml_parser *parser, const XML_Char *name)
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body++;
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}
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scope->element->end_handler (parser, scope->element, parser->user_data,
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body);
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scope->element->end_handler (this, scope->element,
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m_user_data, body);
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}
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else if (scope->element == NULL)
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XML_DefaultCurrent (parser->expat_parser);
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XML_DefaultCurrent (m_expat_parser);
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/* Pop the scope level. */
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parser->scopes.pop_back ();
|
||||
m_scopes.pop_back ();
|
||||
}
|
||||
|
||||
/* Wrapper for gdb_xml_end_element, to prevent throwing exceptions
|
||||
@ -401,19 +481,13 @@ gdb_xml_end_element_wrapper (void *data, const XML_Char *name)
|
||||
{
|
||||
struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data;
|
||||
|
||||
if (parser->error.reason < 0)
|
||||
return;
|
||||
|
||||
TRY
|
||||
{
|
||||
gdb_xml_end_element (parser, name);
|
||||
parser->end_element (name);
|
||||
}
|
||||
CATCH (ex, RETURN_MASK_ALL)
|
||||
{
|
||||
parser->error = ex;
|
||||
#ifdef HAVE_XML_STOPPARSER
|
||||
XML_StopParser (parser->expat_parser, XML_FALSE);
|
||||
#endif
|
||||
parser->set_error (ex);
|
||||
}
|
||||
END_CATCH
|
||||
}
|
||||
@ -422,34 +496,34 @@ gdb_xml_end_element_wrapper (void *data, const XML_Char *name)
|
||||
|
||||
gdb_xml_parser::~gdb_xml_parser ()
|
||||
{
|
||||
XML_ParserFree (this->expat_parser);
|
||||
XML_ParserFree (m_expat_parser);
|
||||
}
|
||||
|
||||
/* Initialize a parser. */
|
||||
|
||||
gdb_xml_parser::gdb_xml_parser (const char *name_,
|
||||
gdb_xml_parser::gdb_xml_parser (const char *name,
|
||||
const gdb_xml_element *elements,
|
||||
void *user_data_)
|
||||
: name (name_),
|
||||
user_data (user_data_),
|
||||
error (exception_none),
|
||||
last_line (0),
|
||||
dtd_name (NULL),
|
||||
is_xinclude (false)
|
||||
void *user_data)
|
||||
: m_name (name),
|
||||
m_user_data (user_data),
|
||||
m_error (exception_none),
|
||||
m_last_line (0),
|
||||
m_dtd_name (NULL),
|
||||
m_is_xinclude (false)
|
||||
{
|
||||
this->expat_parser = XML_ParserCreateNS (NULL, '!');
|
||||
if (this->expat_parser == NULL)
|
||||
m_expat_parser = XML_ParserCreateNS (NULL, '!');
|
||||
if (m_expat_parser == NULL)
|
||||
malloc_failure (0);
|
||||
|
||||
XML_SetUserData (this->expat_parser, this);
|
||||
XML_SetUserData (m_expat_parser, this);
|
||||
|
||||
/* Set the callbacks. */
|
||||
XML_SetElementHandler (this->expat_parser, gdb_xml_start_element_wrapper,
|
||||
XML_SetElementHandler (m_expat_parser, gdb_xml_start_element_wrapper,
|
||||
gdb_xml_end_element_wrapper);
|
||||
XML_SetCharacterDataHandler (this->expat_parser, gdb_xml_body_text);
|
||||
XML_SetCharacterDataHandler (m_expat_parser, gdb_xml_body_text);
|
||||
|
||||
/* Initialize the outer scope. */
|
||||
this->scopes.emplace_back (elements);
|
||||
m_scopes.emplace_back (elements);
|
||||
}
|
||||
|
||||
/* External entity handler. The only external entities we support
|
||||
@ -463,19 +537,20 @@ gdb_xml_fetch_external_entity (XML_Parser expat_parser,
|
||||
const XML_Char *systemId,
|
||||
const XML_Char *publicId)
|
||||
{
|
||||
struct gdb_xml_parser *parser
|
||||
= (struct gdb_xml_parser *) XML_GetUserData (expat_parser);
|
||||
XML_Parser entity_parser;
|
||||
const char *text;
|
||||
enum XML_Status status;
|
||||
|
||||
if (systemId == NULL)
|
||||
{
|
||||
text = fetch_xml_builtin (parser->dtd_name);
|
||||
gdb_xml_parser *parser
|
||||
= (gdb_xml_parser *) XML_GetUserData (expat_parser);
|
||||
|
||||
text = fetch_xml_builtin (parser->dtd_name ());
|
||||
if (text == NULL)
|
||||
internal_error (__FILE__, __LINE__,
|
||||
_("could not locate built-in DTD %s"),
|
||||
parser->dtd_name);
|
||||
parser->dtd_name ());
|
||||
}
|
||||
else
|
||||
{
|
||||
@ -484,7 +559,8 @@ gdb_xml_fetch_external_entity (XML_Parser expat_parser,
|
||||
return XML_STATUS_ERROR;
|
||||
}
|
||||
|
||||
entity_parser = XML_ExternalEntityParserCreate (expat_parser, context, NULL);
|
||||
entity_parser = XML_ExternalEntityParserCreate (expat_parser,
|
||||
context, NULL);
|
||||
|
||||
/* Don't use our handlers for the contents of the DTD. Just let expat
|
||||
process it. */
|
||||
@ -500,23 +576,20 @@ gdb_xml_fetch_external_entity (XML_Parser expat_parser,
|
||||
return status;
|
||||
}
|
||||
|
||||
/* Associate DTD_NAME, which must be the name of a compiled-in DTD,
|
||||
with PARSER. */
|
||||
|
||||
void
|
||||
gdb_xml_use_dtd (struct gdb_xml_parser *parser, const char *dtd_name)
|
||||
gdb_xml_parser::use_dtd (const char *dtd_name)
|
||||
{
|
||||
enum XML_Error err;
|
||||
|
||||
parser->dtd_name = dtd_name;
|
||||
m_dtd_name = dtd_name;
|
||||
|
||||
XML_SetParamEntityParsing (parser->expat_parser,
|
||||
XML_SetParamEntityParsing (m_expat_parser,
|
||||
XML_PARAM_ENTITY_PARSING_UNLESS_STANDALONE);
|
||||
XML_SetExternalEntityRefHandler (parser->expat_parser,
|
||||
XML_SetExternalEntityRefHandler (m_expat_parser,
|
||||
gdb_xml_fetch_external_entity);
|
||||
|
||||
/* Even if no DTD is provided, use the built-in DTD anyway. */
|
||||
err = XML_UseForeignDTD (parser->expat_parser, XML_TRUE);
|
||||
err = XML_UseForeignDTD (m_expat_parser, XML_TRUE);
|
||||
if (err != XML_ERROR_NONE)
|
||||
internal_error (__FILE__, __LINE__,
|
||||
_("XML_UseForeignDTD failed: %s"),
|
||||
@ -531,41 +604,41 @@ gdb_xml_use_dtd (struct gdb_xml_parser *parser, const char *dtd_name)
|
||||
errors will be caught, warned about, and reported as failure. */
|
||||
|
||||
int
|
||||
gdb_xml_parse (struct gdb_xml_parser *parser, const char *buffer)
|
||||
gdb_xml_parser::parse (const char *buffer)
|
||||
{
|
||||
enum XML_Status status;
|
||||
const char *error_string;
|
||||
|
||||
gdb_xml_debug (parser, _("Starting:\n%s"), buffer);
|
||||
gdb_xml_debug (this, _("Starting:\n%s"), buffer);
|
||||
|
||||
status = XML_Parse (parser->expat_parser, buffer, strlen (buffer), 1);
|
||||
status = XML_Parse (m_expat_parser, buffer, strlen (buffer), 1);
|
||||
|
||||
if (status == XML_STATUS_OK && parser->error.reason == 0)
|
||||
if (status == XML_STATUS_OK && m_error.reason == 0)
|
||||
return 0;
|
||||
|
||||
if (parser->error.reason == RETURN_ERROR
|
||||
&& parser->error.error == XML_PARSE_ERROR)
|
||||
if (m_error.reason == RETURN_ERROR
|
||||
&& m_error.error == XML_PARSE_ERROR)
|
||||
{
|
||||
gdb_assert (parser->error.message != NULL);
|
||||
error_string = parser->error.message;
|
||||
gdb_assert (m_error.message != NULL);
|
||||
error_string = m_error.message;
|
||||
}
|
||||
else if (status == XML_STATUS_ERROR)
|
||||
{
|
||||
enum XML_Error err = XML_GetErrorCode (parser->expat_parser);
|
||||
enum XML_Error err = XML_GetErrorCode (m_expat_parser);
|
||||
|
||||
error_string = XML_ErrorString (err);
|
||||
}
|
||||
else
|
||||
{
|
||||
gdb_assert (parser->error.reason < 0);
|
||||
throw_exception (parser->error);
|
||||
gdb_assert (m_error.reason < 0);
|
||||
throw_exception (m_error);
|
||||
}
|
||||
|
||||
if (parser->last_line != 0)
|
||||
warning (_("while parsing %s (at line %d): %s"), parser->name,
|
||||
parser->last_line, error_string);
|
||||
if (m_last_line != 0)
|
||||
warning (_("while parsing %s (at line %d): %s"), m_name,
|
||||
m_last_line, error_string);
|
||||
else
|
||||
warning (_("while parsing %s: %s"), parser->name, error_string);
|
||||
warning (_("while parsing %s: %s"), m_name, error_string);
|
||||
|
||||
return -1;
|
||||
}
|
||||
@ -577,8 +650,8 @@ gdb_xml_parse_quick (const char *name, const char *dtd_name,
|
||||
{
|
||||
gdb_xml_parser parser (name, elements, user_data);
|
||||
if (dtd_name != NULL)
|
||||
gdb_xml_use_dtd (&parser, dtd_name);
|
||||
return gdb_xml_parse (&parser, document);
|
||||
parser.use_dtd (dtd_name);
|
||||
return parser.parse (document);
|
||||
}
|
||||
|
||||
/* Parse a field VALSTR that we expect to contain an integer value.
|
||||
@ -749,7 +822,8 @@ xinclude_start_include (struct gdb_xml_parser *parser,
|
||||
gdb_xml_error (parser, _("Could not load XML document \"%s\""), href);
|
||||
back_to = make_cleanup (xfree, text);
|
||||
|
||||
if (!xml_process_xincludes (data->output, parser->name, text, data->fetcher,
|
||||
if (!xml_process_xincludes (data->output, parser->name (),
|
||||
text, data->fetcher,
|
||||
data->fetcher_baton,
|
||||
data->include_depth + 1))
|
||||
gdb_xml_error (parser, _("Parsing \"%s\" failed"), href);
|
||||
@ -774,8 +848,7 @@ static void XMLCALL
|
||||
xml_xinclude_default (void *data_, const XML_Char *s, int len)
|
||||
{
|
||||
struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data_;
|
||||
struct xinclude_parsing_data *data
|
||||
= (struct xinclude_parsing_data *) parser->user_data;
|
||||
xinclude_parsing_data *data = (xinclude_parsing_data *) parser->user_data ();
|
||||
|
||||
/* If we are inside of e.g. xi:include or the DTD, don't save this
|
||||
string. */
|
||||
@ -793,8 +866,7 @@ xml_xinclude_start_doctype (void *data_, const XML_Char *doctypeName,
|
||||
int has_internal_subset)
|
||||
{
|
||||
struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data_;
|
||||
struct xinclude_parsing_data *data
|
||||
= (struct xinclude_parsing_data *) parser->user_data;
|
||||
xinclude_parsing_data *data = (xinclude_parsing_data *) parser->user_data ();
|
||||
|
||||
/* Don't print out the doctype, or the contents of the DTD internal
|
||||
subset, if any. */
|
||||
@ -805,8 +877,7 @@ static void XMLCALL
|
||||
xml_xinclude_end_doctype (void *data_)
|
||||
{
|
||||
struct gdb_xml_parser *parser = (struct gdb_xml_parser *) data_;
|
||||
struct xinclude_parsing_data *data
|
||||
= (struct xinclude_parsing_data *) parser->user_data;
|
||||
xinclude_parsing_data *data = (xinclude_parsing_data *) parser->user_data ();
|
||||
|
||||
data->skip_depth--;
|
||||
}
|
||||
@ -843,25 +914,25 @@ xml_process_xincludes (std::string &result,
|
||||
xinclude_parsing_data data (result, fetcher, fetcher_baton, depth);
|
||||
|
||||
gdb_xml_parser parser (name, xinclude_elements, &data);
|
||||
parser.is_xinclude = true;
|
||||
parser.set_is_xinclude (true);
|
||||
|
||||
XML_SetCharacterDataHandler (parser.expat_parser, NULL);
|
||||
XML_SetDefaultHandler (parser.expat_parser, xml_xinclude_default);
|
||||
XML_SetCharacterDataHandler (parser.expat_parser (), NULL);
|
||||
XML_SetDefaultHandler (parser.expat_parser (), xml_xinclude_default);
|
||||
|
||||
/* Always discard the XML version declarations; the only important
|
||||
thing this provides is encoding, and our result will have been
|
||||
converted to UTF-8. */
|
||||
XML_SetXmlDeclHandler (parser.expat_parser, xml_xinclude_xml_decl);
|
||||
XML_SetXmlDeclHandler (parser.expat_parser (), xml_xinclude_xml_decl);
|
||||
|
||||
if (depth > 0)
|
||||
/* Discard the doctype for included documents. */
|
||||
XML_SetDoctypeDeclHandler (parser.expat_parser,
|
||||
XML_SetDoctypeDeclHandler (parser.expat_parser (),
|
||||
xml_xinclude_start_doctype,
|
||||
xml_xinclude_end_doctype);
|
||||
|
||||
gdb_xml_use_dtd (&parser, "xinclude.dtd");
|
||||
parser.use_dtd ("xinclude.dtd");
|
||||
|
||||
if (gdb_xml_parse (&parser, text) == 0)
|
||||
if (parser.parse (text) == 0)
|
||||
{
|
||||
if (depth == 0)
|
||||
gdb_xml_debug (&parser, _("XInclude processing succeeded."));
|
||||
|
||||
@ -172,20 +172,6 @@ struct gdb_xml_element
|
||||
gdb_xml_element_end_handler *end_handler;
|
||||
};
|
||||
|
||||
/* Associate DTD_NAME, which must be the name of a compiled-in DTD,
|
||||
with PARSER. */
|
||||
|
||||
void gdb_xml_use_dtd (struct gdb_xml_parser *parser, const char *dtd_name);
|
||||
|
||||
/* Invoke PARSER on BUFFER. BUFFER is the data to parse, which
|
||||
should be NUL-terminated.
|
||||
|
||||
The return value is 0 for success or -1 for error. It may throw,
|
||||
but only if something unexpected goes wrong during parsing; parse
|
||||
errors will be caught, warned about, and reported as failure. */
|
||||
|
||||
int gdb_xml_parse (struct gdb_xml_parser *parser, const char *buffer);
|
||||
|
||||
/* Parse a XML document. DOCUMENT is the data to parse, which should
|
||||
be NUL-terminated. If non-NULL, use the compiled-in DTD named
|
||||
DTD_NAME to drive the parsing.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user