+%top {
+/* Include this before everything else, for various large-file definitions */
+#include "config.h"
+}
+
+/*
+ * We want a reentrant scanner.
+ */
+%option reentrant
+
+/*
+ * We don't use input, so don't generate code for it.
+ */
+%option noinput
+
+/*
+ * We don't use unput, so don't generate code for it.
+ */
+%option nounput
+
+/*
+ * We don't read interactively from the terminal.
+ */
+%option never-interactive
+
+/*
+ * We want to stop processing when we get to the end of the input.
+ */
%option noyywrap
-%option nounput
-%option outfile="dtd_parse.c"
+
+/*
+ * The type for the state we keep for a scanner.
+ */
+%option extra-type="Dtd_Parse_scanner_state_t *"
+
+/*
+ * Prefix scanner routines with "Dtd_Parse_" rather than "yy", so this scanner
+ * can coexist with other scanners.
+ */
%option prefix="Dtd_Parse_"
-%option never-interactive
+
+%option outfile="dtd_parse.c"
+
+/*
+ * We have to override the memory allocators so that we don't get
+ * "unused argument" warnings from the yyscanner argument (which
+ * we don't use, as we have a global memory allocator).
+ *
+ * We provide, as macros, our own versions of the routines generated by Flex,
+ * which just call malloc()/realloc()/free() (as the Flex versions do),
+ * discarding the extra argument.
+ */
+%option noyyalloc
+%option noyyrealloc
+%option noyyfree
%{
/* dtd_parse.l
- * an XML dissector for ethereal
+ * an XML dissector for Wireshark
* lexical analyzer for DTDs
*
- * Copyright 2004, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
- *
- * $Id$
+ * Copyright 2004, Luis E. Garcia Ontanon <luis@ontanon.org>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
-
+
#include <glib.h>
#include <string.h>
-
+
#include "dtd.h"
#include "dtd_grammar.h"
#include "dtd_parse.h"
-
+
struct _proto_xmlpi_attr {
- gchar* name;
+ const gchar* name;
void (*act)(gchar*);
};
- static void* pParser;
- static GString* input_string;
- static guint offset;
- static guint len;
- static gchar* location;
- static gchar* attr_name;
-
- static int my_yyinput(char* buff,guint size);
-
- static dtd_token_data_t* new_token(gchar*);
+ typedef struct {
+ GString* input_string;
+ size_t offsetx;
+ size_t len;
+ void* pParser;
+ gchar* location;
+ gchar* attr_name;
+ } Dtd_Parse_scanner_state_t;
+
+ static size_t my_yyinput(Dtd_Parse_scanner_state_t *state,char* buff,size_t size);
+
+ static dtd_token_data_t* new_token(gchar*,gchar*);
static dtd_build_data_t* build_data;
-
+
static void set_proto_name (gchar* val) { if(build_data->proto_name) g_free(build_data->proto_name); build_data->proto_name = g_strdup(val); }
static void set_media_type (gchar* val) { if(build_data->media_type) g_free(build_data->media_type); build_data->media_type = g_strdup(val); }
static void set_proto_root (gchar* val) { if(build_data->proto_root) g_free(build_data->proto_root); build_data->proto_root = g_strdup(val); }
static void set_description (gchar* val) { if(build_data->description) g_free(build_data->description); build_data->description = g_strdup(val); }
- static void set_recursive (gchar* val) { build_data->recursion = ( g_strcasecmp(val,"yes") == 0 ) ? TRUE : FALSE; }
+ static void set_recursive (gchar* val) { build_data->recursion = ( g_ascii_strcasecmp(val,"yes") == 0 ) ? TRUE : FALSE; }
- static struct _proto_xmlpi_attr proto_attrs[] =
- {
- { "proto_name", set_proto_name },
- { "media", set_media_type },
- { "root", set_proto_root },
- { "description", set_description },
- { "hierarchy", set_recursive },
- {NULL,NULL}
- };
-
#ifdef DEBUG_DTD_PARSER
#define DEBUG_DTD_TOKEN fprintf(stderr,"->%s (%i)%s\n",location,token_type,yytext)
#else
#define DEBUG_DTD_TOKEN
#endif
-
+
#define DTD_PARSE(token_type) \
{ DEBUG_DTD_TOKEN; \
- DtdParse(pParser, (token_type), new_token(yytext), build_data); \
+ DtdParse(yyextra->pParser, (token_type), new_token(yytext, yyextra->location), build_data); \
if(build_data->error->len > 0) yyterminate(); \
}
-#define YY_INPUT(buff,result,max_size) ( (result) = my_yyinput((buff),(max_size)) )
+#define YY_INPUT(buff,result,max_size) ( (result) = my_yyinput(yyextra,(buff),(max_size)) )
+#define YY_USER_INIT BEGIN DTD;
+
+/*
+ * Flex (v 2.5.35) uses this symbol to "exclude" unistd.h
+ */
+#ifdef _WIN32
+#define YY_NO_UNISTD_H
+#endif
+
+/*
+ * Sleazy hack to suppress compiler warnings in yy_fatal_error().
+ */
+#define YY_EXIT_FAILURE ((void)yyscanner, 2)
+
+/*
+ * Macros for the allocators, to discard the extra argument.
+ */
+#define Dtd_Parse_alloc(size, yyscanner) (void *)malloc(size)
+#define Dtd_Parse_realloc(ptr, size, yyscanner) (void *)realloc((char *)(ptr), (size))
+#define Dtd_Parse_free(ptr, yyscanner) free((char *)ptr)
%}
start_xmlpi "<?"
-location_xmlpi "ethereal:location"
-protocol_xmlpi "ethereal:protocol"
+location_xmlpi "wireshark:location"
+protocol_xmlpi "wireshark:protocol"
get_attr_quote =[:blank:]*["]
avoid_editor_bug ["]
pipe "|"
dquote ["]
-name [a-z][-a-zA-Z0-9_]*
+name [A-Za-z0-9][-a-zA-Z0-9_]*
dquoted ["][^\"]*["]
squoted ['][^\']*[']
-%START DTD XMLPI LOCATION DONE PROTOCOL GET_ATTR_QUOTE GET_ATTR_VAL GET_ATTR_CLOSE_QUOTE IN_COMMENT IN_NOTATION
+%START DTD XMLPI LOCATION DONE PROTOCOL GET_ATTR_QUOTE GET_ATTR_VAL GET_ATTR_CLOSE_QUOTE IN_COMMENT IN_NOTATION
%%
{whitespace} ;
<XMLPI>{stop_xmlpi} BEGIN DTD;
<LOCATION>{get_location_xmlpi} {
- if(location) g_free(location);
- location = g_strdup(yytext);
+ if(yyextra->location) g_free(yyextra->location);
+ yyextra->location = g_strdup(yytext);
BEGIN DONE;
}
<DONE>{stop_xmlpi} BEGIN DTD;
<PROTOCOL>{name} {
- attr_name = g_strdup(yytext);
- g_strdown(attr_name);
+ yyextra->attr_name = g_ascii_strdown(yytext, -1);
BEGIN GET_ATTR_QUOTE;
}
<GET_ATTR_QUOTE>{get_attr_quote} { BEGIN GET_ATTR_VAL; }
<GET_ATTR_QUOTE>. {
- g_string_sprintfa(build_data->error,
+ g_string_append_printf(build_data->error,
"error in wireshark:protocol xmpli at %s : could not find attribute value!",
- location);
+ yyextra->location);
yyterminate();
}
/*"*/
struct _proto_xmlpi_attr* pa;
gboolean got_it = FALSE;
-
+ static struct _proto_xmlpi_attr proto_attrs[] =
+ {
+ { "proto_name", set_proto_name },
+ { "media", set_media_type },
+ { "root", set_proto_root },
+ { "description", set_description },
+ { "hierarchy", set_recursive },
+ {NULL,NULL}
+ };
+
for(pa = proto_attrs; pa->name; pa++) {
- if (g_strcasecmp(attr_name,pa->name) == 0) {
+ if (g_ascii_strcasecmp(yyextra->attr_name,pa->name) == 0) {
pa->act(yytext);
got_it = TRUE;
break;
}
}
-
+
if (! got_it) {
- g_string_sprintfa(build_data->error,
+ g_string_append_printf(build_data->error,
"error in wireshark:protocol xmpli at %s : no such parameter %s!",
- location, attr_name);
- g_free(attr_name);
+ yyextra->location, yyextra->attr_name);
+ g_free(yyextra->attr_name);
yyterminate();
}
-
- g_free(attr_name);
-
+
+ g_free(yyextra->attr_name);
+
BEGIN GET_ATTR_CLOSE_QUOTE;
}
<DTD>{element_kw} { DTD_PARSE(TOKEN_ELEMENT_KW); }
<DTD>{doctype_kw} { DTD_PARSE(TOKEN_DOCTYPE_KW); }
-<DTD>{pcdata} { DTD_PARSE(TOKEN_ELEM_DATA); }
+<DTD>{pcdata} { DTD_PARSE(TOKEN_ELEM_DATA); }
<DTD>{any} { DTD_PARSE(TOKEN_ELEM_DATA); }
<DTD>{cdata} { DTD_PARSE(TOKEN_ELEM_DATA); }
<DTD>{empty} { DTD_PARSE(TOKEN_EMPTY_KW); }
%%
-static dtd_token_data_t* new_token(gchar* text) {
- dtd_token_data_t* t = g_malloc(sizeof(dtd_token_data_t));
-
+static dtd_token_data_t* new_token(gchar* text, gchar* location) {
+ dtd_token_data_t* t = g_new(dtd_token_data_t,1);
+
t->text = g_strdup(text);
t->location = g_strdup(location);
-
+
return t;
}
-static int my_yyinput(char* buff, guint size) {
+static size_t my_yyinput(Dtd_Parse_scanner_state_t *state, char* buff, size_t size) {
- if (offset >= len ) {
+ if (state->offsetx >= state->len) {
return YY_NULL;
- } else if ( offset + size <= len ) {
- memcpy(buff, input_string->str + offset,size);
- offset += size;
+ } else if (state->offsetx + size <= state->len) {
+ memcpy(buff, state->input_string->str + state->offsetx, size);
+ state->offsetx += size;
return size;
} else {
- size = len - offset;
- memcpy(buff, input_string->str + offset,size);
- offset = len;
+ size = state->len - state->offsetx;
+ memcpy(buff, state->input_string->str + state->offsetx, size);
+ state->offsetx = state->len;
return size;
}
}
extern dtd_build_data_t* dtd_parse(GString* s) {
+ yyscan_t scanner;
+ Dtd_Parse_scanner_state_t state;
+
+ if (Dtd_Parse_lex_init(&scanner) != 0) {
+#ifdef DEBUG_DTD_PARSER
+ fprintf(stderr, "Can't initialize scanner: %s\n",
+ strerror(errno));
+#endif
+ return NULL;
+ }
+
+ state.input_string = s;
+ state.offsetx = 0;
+ state.len = state.input_string->len;
- input_string = s;
- offset = 0;
- len = input_string->len;
-
- pParser = DtdParseAlloc(g_malloc);
+ state.pParser = DtdParseAlloc(g_malloc);
#ifdef DEBUG_DTD_PARSER
DtdParseTrace(stderr, ">>");
#endif
-
- build_data = g_malloc(sizeof(dtd_build_data_t));
+
+ build_data = g_new(dtd_build_data_t,1);
build_data->proto_name = NULL;
build_data->media_type = NULL;
build_data->description = NULL;
build_data->proto_root = NULL;
build_data->recursion = FALSE;
-
+
build_data->elements = g_ptr_array_new();
build_data->attributes = g_ptr_array_new();
build_data->error = g_string_new("");
-
- location = NULL;
-
- BEGIN DTD;
-
- yylex();
-
- DtdParse(pParser, 0, NULL,build_data);
-
- yyrestart(NULL);
-
- location = NULL;
-
- DtdParseFree(pParser, g_free );
-
+
+ state.location = NULL;
+ state.attr_name = NULL;
+
+ /* Associate the state with the scanner */
+ Dtd_Parse_set_extra(&state, scanner);
+
+ Dtd_Parse_lex(scanner);
+
+ DtdParse(state.pParser, 0, NULL, build_data);
+
+ Dtd_Parse_lex_destroy(scanner);
+
+ if (state.location)
+ g_free(state.location);
+
+ DtdParseFree(state.pParser, g_free);
+
return build_data;
}
git.samba.org / metze / wireshark / wip.git / blobdiff