2 * We don't read from the terminal.
4 %option never-interactive
7 * The language we're scanning is case-insensitive.
12 * We use start condition stacks.
17 * Prefix scanner routines with "DiamDict" rather than "yy", so this scanner
18 * can coexist with other scanners.
20 %option prefix="DiamDict"
22 %option outfile="diam_dict.c"
27 ** Diameter Dictionary Import Routines
31 ** (c) 2007, Luis E. Garcia Ontanon <luis@ontanon.org>
33 ** This library is free software; you can redistribute it and/or
34 ** modify it under the terms of the GNU Library General Public
35 ** License as published by the Free Software Foundation; either
36 ** version 2 of the License, or (at your option) any later version.
38 ** This library is distributed in the hope that it will be useful,
39 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
40 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41 ** Library General Public License for more details.
43 ** You should have received a copy of the GNU Library General Public
44 ** License along with this library; if not, write to the Free Software
45 ** Foundation, Inc., 51 Franklin Street, Fifth Floor,
46 ** Boston, MA 02110-1301, USA.
59 #include "diam_dict.h"
60 #include "diam_dict_lex.h"
61 #include <wsutil/file_util.h>
63 typedef struct entity_t {
66 struct entity_t* next;
69 #define ATTR_UINT(cont) do { D(("attr_uint " #cont "\t" )); attr_uint = &(cont); yy_push_state(GET_UINT_ATTR); } while(0)
70 #define ATTR_STR(cont) do { D(("attr_str " #cont "\t" )); attr_str = &(cont); yy_push_state(GET_ATTR); } while(0)
71 #define IGNORE() do { D(("ignore: %s\t",yytext)); yy_push_state(IGNORE_ATTR); } while(0)
73 #define D(args) ddict_debug args
75 #define MAX_INCLUDE_DEPTH 10
76 #define YY_INPUT(buf,result,max_size) { result = current_yyinput(buf,max_size); }
78 #define APPEND(txt,len) append_to_buffer(txt,len)
81 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
82 static int include_stack_ptr = 0;
83 static size_t (*current_yyinput)(char*,size_t);
84 static const char* sys_dir;
86 static ddict_application_t* appl;
87 static ddict_avp_t* avp;
88 static ddict_enum_t* enumitem;
89 static ddict_gavp_t* gavp;
90 static ddict_typedefn_t* typedefn;
91 static ddict_cmd_t* cmd;
92 static ddict_vendor_t* vnd;
93 static ddict_xmlpi_t* xmlpi;
95 static ddict_application_t* last_appl;
96 static ddict_avp_t* last_avp;
97 static ddict_enum_t* last_enumitem;
98 static ddict_gavp_t* last_gavp;
99 static ddict_typedefn_t* last_typedefn;
100 static ddict_cmd_t* last_cmd;
101 static ddict_vendor_t* last_vnd;
102 static ddict_xmlpi_t* last_xmlpi;
104 static char** attr_str;
105 static unsigned* attr_uint;
107 static void ddict_debug(const char* fmt, ...);
108 static void append_to_buffer(char* txt, int len);
109 static FILE* ddict_open(const char*, const char*);
114 xmlpi_start [[:blank:] \r\n]*<\?[[:blank:] \r\n]*
115 xmlpi_end [[:blank:] \r\n]*\?>[[:blank:] \r\n]*
116 xmlpi_key_attr [[:blank:] \r\n]*key[[:blank:] \r\n]*=[[:blank:] \r\n]*\042
117 xmlpi_value_attr [[:blank:] \r\n]*value[[:blank:] \r\n]*=[[:blank:] \r\n]*\042
119 comment_start [[:blank:] \r\n]*<!--[[:blank:] \r\n]*
120 comment_end [[:blank:] \r\n]*-->[[:blank:] \r\n]*
121 open_tag [[:blank:] \r\n]*<[[:blank:] \r\n]*
122 end_tag [[:blank:] \r\n]*\/>[[:blank:] \r\n]*
123 close_tag [[:blank:] \r\n]*>[[:blank:] \r\n]*
124 open_closetag [[:blank:] \r\n]*<\/[[:blank:] \r\n]*
125 equals [[:blank:] \r\n]*=[[:blank:] \r\n]*
126 whitespace [[:blank:] \r\n]*
127 dquoted \042[^\042]*\042
129 doctype [[:blank:] \r\n]*<!DOCTYPE[^\[]*\[[[:blank:] \r\n]*
130 doctype_end [[:blank:] \r\n]*\][[:blank:] \r\n]*>[[:blank:] \r\n]*
132 start_entity [[:blank:] \r\n]*<\!ENTITY[[:blank:] \r\n]*
133 system [[:blank:] \r\n]*SYSTEM[[:blank:] \r\n]*\042
134 entityname [a-z0-9-]+
136 end_entity \042[[:blank:] \r\n]*>[[:blank:] \r\n]*
150 dictionary_start <dictionary>
151 dictionary_end <\/dictionary>
153 base_start <base[^>*]*>
156 application_start <application
157 application_end<\/application>
159 command_start <command
160 command_end<\/command>
162 typedefn_start <typedefn
170 grouped_start <grouped>
171 grouped_end <\/grouped>
176 ignored_attr [a-z0-9-]+=
177 ignored_quoted \042[^\042]*\042
182 vendor_attr vendor-id=\042
183 typename_attr type-name=\042
184 typeparent_attr type-parent=\042
185 description_attr description=\042
189 %S LOADING LOADING_COMMENT LOADING_XMLPI ENTITY GET_SYSTEM GET_FILE END_ENTITY
190 %S GET_ATTR GET_UINT_ATTR END_ATTR OUTSIDE IN_DICT IN_APPL IN_AVP APPL_ATTRS IGNORE_ATTR
191 %S TYPE_ATTRS GAVP_ATTRS ENUM_ATTRS AVP_ATTRS VENDOR_ATTRS COMMAND_ATTRS TYPEDEFN_ATTRS
192 %S XMLPI_ATTRS XMLPI_GETKEY XMLPI_GETVAL XMLPI_ENDATTR
195 <LOADING>{doctype_end} ;
197 <LOADING>{comment_start} BEGIN LOADING_COMMENT;
199 <LOADING_COMMENT>{comment_end} BEGIN LOADING;
201 <LOADING>{xmlpi_start} BEGIN LOADING_XMLPI;
202 <LOADING_XMLPI>{whitespace} ;
203 <LOADING_XMLPI>{entityname} {
204 xmlpi = g_malloc(sizeof(ddict_xmlpi_t));
205 xmlpi->name = g_strdup(yytext);
210 if (!dict->xmlpis) last_xmlpi = dict->xmlpis = xmlpi;
211 else last_xmlpi = last_xmlpi->next = xmlpi;
216 <XMLPI_ATTRS>{xmlpi_key_attr} BEGIN XMLPI_GETKEY;
217 <XMLPI_GETKEY>{ndquot} { xmlpi->key = strdup(yytext); BEGIN XMLPI_ATTRS; }
219 <XMLPI_ATTRS>{xmlpi_value_attr} BEGIN XMLPI_GETVAL;
220 <XMLPI_GETVAL>{ndquot} { xmlpi->value = strdup(yytext); BEGIN XMLPI_ATTRS; }
223 <XMLPI_ATTRS>{xmlpi_end} BEGIN LOADING;
226 <LOADING>{start_entity} BEGIN ENTITY;
227 <ENTITY>{entityname} {
228 entity_t* e = g_malloc(sizeof(entity_t));
229 e->name = strdup(yytext);
234 <GET_SYSTEM>{system} BEGIN GET_FILE;
236 ents.next->file = strdup(yytext);
239 <END_ENTITY>{end_entity} BEGIN LOADING;
241 <LOADING>{open_tag} APPEND("<",1);
243 <LOADING>{close_tag} APPEND(">",1);
245 <LOADING>{end_tag} APPEND("/>",2);
247 <LOADING>{open_closetag} APPEND("</",2);
249 <LOADING>{whitespace} APPEND(" ",1);
251 <LOADING>{dquoted} APPEND(yytext,yyleng);
253 <LOADING>{equals} APPEND("=",1);
255 <LOADING>{any} APPEND(yytext,yyleng);
261 while(*p != ';') p++;
265 D(("looking for entity: %s\n",yytext));
267 if ( include_stack_ptr >= MAX_INCLUDE_DEPTH ) {
268 fprintf(stderr, "included files nested to deeply\n");
272 for (e = ents.next; e; e = e->next) {
273 if (strcmp(e->name,yytext) == 0) {
274 yyin = ddict_open(sys_dir,e->file);
275 D(("entity: %s filename: %s yyin: %p\n",e->name,e->file,yyin));
278 fprintf(stderr, "Could not open file: '%s', error: %s\n", e->file, g_strerror(errno) );
282 include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
283 yy_switch_to_buffer(yy_create_buffer( yyin, YY_BUF_SIZE ) );
291 fprintf(stderr, "Could not find entity: '%s'\n", yytext );
298 if (!yyin) yyterminate();
301 D(("closing: %p %i\n",yyin,include_stack_ptr));
303 if ( --include_stack_ptr < 0 ) {
304 D(("DONE READING\n"));
308 yy_delete_buffer( YY_CURRENT_BUFFER );
309 yy_switch_to_buffer(include_stack[include_stack_ptr]);
316 *attr_str = strdup(yytext);
322 <GET_UINT_ATTR>{number} {
323 *attr_uint = strtoul(yytext,NULL,10);
329 <END_ATTR>{dquot} { yy_pop_state(); }
336 <IGNORE_ATTR>{ignored_quoted} {
337 D(("=>%s<=\n",yytext));
341 <OUTSIDE>{dictionary_start} {
342 D(("dictionary_start\n"));
347 <IN_DICT>{base_start} {
352 <IN_DICT>{application_start} {
353 D(("application_start\n"));
355 appl = g_malloc(sizeof(ddict_application_t));
360 if (!dict->applications) last_appl = dict->applications = appl;
361 else last_appl = last_appl->next = appl;
366 <APPL_ATTRS>{name_attr} { ATTR_STR(appl->name); }
367 <APPL_ATTRS>{id_attr} { ATTR_UINT(appl->code); }
369 <APPL_ATTRS>{stop} BEGIN IN_APPL;
370 <APPL_ATTRS>{stop_end} BEGIN IN_DICT;
372 <IN_APPL>{command_end} ;
374 <IN_APPL>{command_start} {
375 D(("command_start\n"));
377 cmd = g_malloc(sizeof(ddict_cmd_t));
383 if (!dict->cmds) last_cmd = dict->cmds = cmd;
384 else last_cmd = last_cmd->next = cmd;
389 <COMMAND_ATTRS>{name_attr} { ATTR_STR(cmd->name); }
390 <COMMAND_ATTRS>{vendor_attr} { ATTR_STR(cmd->vendor); }
391 <COMMAND_ATTRS>{code_attr} { ATTR_UINT(cmd->code); }
392 <COMMAND_ATTRS>{stop} |
393 <COMMAND_ATTRS>{stop_end} { BEGIN IN_APPL; }
395 <IN_APPL>{vendor_start} {
396 D(("vendor_start\n"));
398 vnd = g_malloc(sizeof(ddict_vendor_t));
403 if (!dict->vendors) last_vnd = dict->vendors = vnd;
404 else last_vnd = last_vnd->next = vnd;
409 <VENDOR_ATTRS>{name_attr} { ATTR_STR(vnd->desc); }
410 <VENDOR_ATTRS>{vendor_attr} { ATTR_STR(vnd->name); }
411 <VENDOR_ATTRS>{code_attr} { ATTR_UINT(vnd->code); }
412 <VENDOR_ATTRS>{stop} |
413 <VENDOR_ATTRS>{stop_end} { BEGIN IN_APPL; }
415 <IN_APPL>{typedefn_start} {
416 D(("typedefn_start\n"));
418 typedefn = g_malloc(sizeof(ddict_typedefn_t));
419 typedefn->name = NULL;
420 typedefn->parent = NULL;
421 typedefn->next = NULL;
423 if (!dict->typedefns) last_typedefn = dict->typedefns = typedefn;
424 else last_typedefn = last_typedefn->next = typedefn;
426 BEGIN TYPEDEFN_ATTRS;
429 <TYPEDEFN_ATTRS>{typename_attr} { ATTR_STR(typedefn->name); }
430 <TYPEDEFN_ATTRS>{typeparent_attr} { ATTR_STR(typedefn->parent); }
431 <TYPEDEFN_ATTRS>{stop} |
432 <TYPEDEFN_ATTRS>{stop_end} { BEGIN IN_APPL; }
435 <IN_APPL>{avp_start} {
438 avp = g_malloc(sizeof(ddict_avp_t));
440 avp->description = NULL;
448 if (! dict->avps ) last_avp = dict->avps = avp;
449 else last_avp = last_avp->next = avp;
454 <AVP_ATTRS>{name_attr} { ATTR_STR(avp->name); }
455 <AVP_ATTRS>{description_attr} { ATTR_STR(avp->description); }
456 <AVP_ATTRS>{vendor_attr} { ATTR_STR(avp->vendor); }
457 <AVP_ATTRS>{code_attr} { ATTR_UINT(avp->code); }
458 <AVP_ATTRS>{stop} { BEGIN IN_AVP; }
459 <AVP_ATTRS>{stop_end} { BEGIN IN_APPL; }
462 <IN_AVP>{grouped_start} { avp->type = strdup("Grouped"); };
463 <IN_AVP>{grouped_end} ;
465 <IN_AVP>{type_start} { BEGIN TYPE_ATTRS; }
466 <TYPE_ATTRS>{typename_attr} { ATTR_STR(avp->type); }
468 <IN_AVP>{gavp_start} {
471 gavp = g_malloc(sizeof(ddict_gavp_t));
476 if (!avp->gavps) last_gavp = avp->gavps = gavp;
477 else last_gavp = last_gavp->next = gavp;
483 <GAVP_ATTRS>{name_attr} { ATTR_STR(gavp->name); }
486 <IN_AVP>{enum_start} {
489 enumitem = g_malloc(sizeof(ddict_enum_t));
490 enumitem->name = NULL;
492 enumitem->next = NULL;
494 if (!avp->enums) last_enumitem = avp->enums = enumitem;
495 else last_enumitem = last_enumitem->next = enumitem;
501 <ENUM_ATTRS>{name_attr} { ATTR_STR(enumitem->name); }
502 <ENUM_ATTRS>{code_attr} { ATTR_UINT(enumitem->code); }
504 <TYPE_ATTRS,GAVP_ATTRS,ENUM_ATTRS>{stop} { BEGIN IN_AVP; }
505 <TYPE_ATTRS,GAVP_ATTRS,ENUM_ATTRS>{stop_end} { BEGIN IN_AVP; }
507 <IN_AVP>{avp_end} { D(("avp_end")); BEGIN IN_APPL; }
509 <IN_APPL>{application_end} |
510 <IN_APPL>{base_end} {
514 <IN_DICT>{dictionary_end} {
518 <AVP_ATTRS,ENUM_ATTRS,GAVP_ATTRS,TYPE_ATTRS,TYPEDEFN_ATTRS,VENDOR_ATTRS,APPL_ATTRS,COMMAND_ATTRS>{ignored_attr} IGNORE();
529 static int debugging = 0;
531 static void ddict_debug(const char* fmt, ...) {
535 if (debugging) vfprintf(stderr, fmt, ap);
542 static char* strbuf = NULL;
543 static char* write_ptr = NULL;
544 static char* read_ptr = NULL;
546 static unsigned size_strbuf = 8192;
547 static unsigned len_strbuf = 0;
549 extern void ddict_unused(void);
550 void ddict_unused(void) {
554 static void append_to_buffer(char* txt, int len) {
556 if (strbuf == NULL) {
557 read_ptr = write_ptr = strbuf = g_malloc(size_strbuf);
560 if ( (len_strbuf + len) >= size_strbuf ) {
561 read_ptr = strbuf = g_realloc(strbuf,size_strbuf *= 2);
564 write_ptr = strbuf + len_strbuf;
565 strncpy(write_ptr,txt,len);
570 static size_t file_input(char* buf, size_t max) {
573 read = fread(buf,1,max,yyin);
577 } else if (read > 0) {
585 static size_t string_input(char* buf, size_t max) {
586 if (read_ptr >= write_ptr ) {
588 } else if ( read_ptr + max > write_ptr ) {
589 max = write_ptr - read_ptr;
592 memcpy(buf,read_ptr,max);
598 static FILE* ddict_open(const char* system_directory, const char* filename) {
601 if (system_directory) {
602 fname = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
603 system_directory,filename);
605 fname = g_strdup(filename);
608 fh = ws_fopen(fname,"r");
610 D(("fname: %s fh: %p\n",fname,fh));
618 ddict_t* ddict_scan(const char* system_directory, const char* filename, int dbg) {
622 sys_dir = system_directory;
624 yyin = ddict_open(sys_dir,filename);
627 D(("unable to open %s\n", filename));
634 dict = g_malloc(sizeof(ddict_t));
635 dict->applications = NULL;
637 dict->vendors = NULL;
638 dict->typedefns = NULL;
653 last_enumitem = NULL;
655 last_typedefn = NULL;
661 current_yyinput = file_input;
665 D(("\n---------------\n%s\n------- %d -------\n",strbuf,len_strbuf));
667 current_yyinput = string_input;
679 void ddict_free(ddict_t* d) {
680 ddict_application_t *p, *pn;
681 ddict_vendor_t *v, *vn;
683 ddict_typedefn_t *t, *tn;
686 #define FREE_NAMEANDOBJ(n) do { if(n->name) g_free(n->name); g_free(n); } while(0)
688 for (p = d->applications; p; p = pn ) {
693 for (v = d->vendors; v; v = vn) {
695 if (!v->desc) g_free(v->desc);
699 for (c = d->cmds; c; c = cn ) {
704 for (t = d->typedefns; t; t = tn) {
706 if (!t->parent) g_free(t->parent);
710 for (a = d->avps; a; a = an) {
711 ddict_gavp_t* g, *gn;
712 ddict_enum_t* e, *en;
715 for (g = a->gavps; g; g = gn) {
720 for (e = a->enums; e; e = en) {
725 if (!a->vendor) g_free(a->vendor);
726 if (!a->type) g_free(a->type);
727 if (!a->description) g_free(a->description);
734 void ddict_print(FILE* fh, ddict_t* d) {
735 ddict_application_t* p;
742 for (p = d->applications; p; p = p->next) {
743 fprintf(fh,"Application: %s[%u]:\n",
744 p->name ? p->name : "-",
748 for (v = d->vendors; v; v = v->next) {
749 fprintf(fh,"Vendor: %s[%u]:\n",
750 v->name ? v->name : "-",
754 for (c = d->cmds; c; c = c->next) {
755 fprintf(fh,"Command: %s[%u] \n",
756 c->name ? c->name : "-",
760 for (t = d->typedefns; t; t = t->next) {
761 fprintf(fh,"Type: %s -> %s \n",
762 t->name ? t->name : "-",
763 t->parent ? t->parent : "" );
766 for (a = d->avps; a; a = a->next) {
769 fprintf(fh,"AVP: %s[%u:%s] %s %s\n",
770 a->name ? a->name : "-",
772 a->vendor ? a->vendor : "None",
773 a->type ? a->type : "-",
774 a->description ? a->description : "");
776 for (g = a->gavps; g; g = g->next) {
777 fprintf(fh,"\tGAVP: %s\n",
778 g->name ? g->name : "-" );
781 for (e = a->enums; e; e = e->next) {
782 fprintf(fh,"\tEnum: %s[%u]\n",
783 e->name ? e->name : "-",
790 * We want to stop processing when we get to the end of the input.
791 * (%option noyywrap is not used because if used then
792 * some flex versions (eg: 2.5.35) generate code which causes
793 * warnings by the Windows VC compiler).
800 #ifdef TEST_DIAM_DICT_STANDALONE
801 int main(int argc, char** argv) {
814 fprintf(stderr,"%s: usage [dictionary_dir] dictionary_filename\n",argv[0]);
818 d = ddict_scan(dname,fname,1);
820 ddict_print(stdout, d);