2 * We want to stop processing when we get to the end of the input.
7 * We don't use unput, so don't generate code for it.
12 * We don't read from the terminal.
14 %option never-interactive
17 * The language we're scanning is case-insensitive.
22 * We use start condition stacks.
27 * Prefix scanner routines with "DiamDict" rather than "yy", so this scanner
28 * can coexist with other scanners.
30 %option prefix="DiamDict"
32 %option outfile="diam_dict.c"
37 ** Diameter Dictionary Import Routines
41 ** (c) 2007, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
43 ** This library is free software; you can redistribute it and/or
44 ** modify it under the terms of the GNU Library General Public
45 ** License as published by the Free Software Foundation; either
46 ** version 2 of the License, or (at your option) any later version.
48 ** This library is distributed in the hope that it will be useful,
49 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
50 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
51 ** Library General Public License for more details.
53 ** You should have received a copy of the GNU Library General Public
54 ** License along with this library; if not, write to the Free Software
55 ** Foundation, Inc., 51 Franklin Street, Fifth Floor,
56 ** Boston, MA 02110-1301, USA.
70 #include "diam_dict.h"
72 typedef struct entity_t {
75 struct entity_t* next;
78 #define ATTR_UINT(cont) do { D(("attr_uint " #cont "\t" )); attr_uint = &(cont); yy_push_state(GET_UINT_ATTR); } while(0)
79 #define ATTR_STR(cont) do { D(("attr_str " #cont "\t" )); attr_str = &(cont); yy_push_state(GET_ATTR); } while(0)
80 #define IGNORE() do { D(("ignore: %s\t",yytext)); yy_push_state(IGNORE_ATTR); } while(0)
82 #define D(args) ddict_debug args
85 #define DDICT_DIRSEP "\\"
87 #define DDICT_DIRSEP "/"
90 #define MAX_INCLUDE_DEPTH 10
91 #define YY_INPUT(buf,result,max_size) { result = current_yyinput(buf,max_size); }
93 #define APPEND(txt,len) append_to_buffer(txt,len)
96 static YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH];
97 static int include_stack_ptr = 0;
98 static size_t (*current_yyinput)(char*,size_t);
99 static const char* sys_dir;
100 static ddict_t* dict;
101 static ddict_application_t* appl;
102 static ddict_avp_t* avp;
103 static ddict_enum_t* enumitem;
104 static ddict_gavp_t* gavp;
105 static ddict_typedefn_t* typedefn;
106 static ddict_cmd_t* cmd;
107 static ddict_vendor_t* vnd;
108 static ddict_xmlpi_t* xmlpi;
110 static ddict_application_t* last_appl;
111 static ddict_avp_t* last_avp;
112 static ddict_enum_t* last_enumitem;
113 static ddict_gavp_t* last_gavp;
114 static ddict_typedefn_t* last_typedefn;
115 static ddict_cmd_t* last_cmd;
116 static ddict_vendor_t* last_vnd;
117 static ddict_xmlpi_t* last_xmlpi;
119 static char** attr_str;
120 static unsigned* attr_uint;
122 static void ddict_debug(const char* fmt, ...);
123 static void append_to_buffer(char* txt, int len);
124 static FILE* ddict_open(const char*, const char*);
129 xmlpi_start [[:blank:] \r\n]*<\?[[:blank:] \r\n]*
130 xmlpi_end [[:blank:] \r\n]*\?>[[:blank:] \r\n]*
131 xmlpi_key_attr [[:blank:] \r\n]*key[[:blank:] \r\n]*=[[:blank:] \r\n]*\042
132 xmlpi_value_attr [[:blank:] \r\n]*value[[:blank:] \r\n]*=[[:blank:] \r\n]*\042
134 comment_start [[:blank:] \r\n]*<!--[[:blank:] \r\n]*
135 comment_end [[:blank:] \r\n]*-->[[:blank:] \r\n]*
136 open_tag [[:blank:] \r\n]*<[[:blank:] \r\n]*
137 end_tag [[:blank:] \r\n]*\/>[[:blank:] \r\n]*
138 close_tag [[:blank:] \r\n]*>[[:blank:] \r\n]*
139 open_closetag [[:blank:] \r\n]*<\/[[:blank:] \r\n]*
140 equals [[:blank:] \r\n]*=[[:blank:] \r\n]*
141 whitespace [[:blank:] \r\n]*
142 dquoted \042[^\042]*\042
144 doctype [[:blank:] \r\n]*<!DOCTYPE[^\[]*\[[[:blank:] \r\n]*
145 doctype_end [[:blank:] \r\n]*\][[:blank:] \r\n]*>[[:blank:] \r\n]*
147 start_entity [[:blank:] \r\n]*<\!ENTITY[[:blank:] \r\n]*
148 system [[:blank:] \r\n]*SYSTEM[[:blank:] \r\n]*\042
149 entityname [a-z0-9-]+
151 end_entity \042[[:blank:] \r\n]*>[[:blank:] \r\n]*
165 dictionary_start <dictionary>
166 dictionary_end <\/dictionary>
168 base_start <base[^>*]*>
171 applictation_start <application
172 application_end<\/application>
174 command_start <command
175 command_end<\/command>
177 typedefn_start <typedefn
185 grouped_start <grouped>
186 grouped_end <\/grouped>
191 ignored_attr [a-z0-9-]+=
192 ignored_quoted \042[^\042]*\042
197 vendor_attr vendor-id=\042
198 typename_attr type-name=\042
199 typeparent_attr type-parent=\042
200 description_attr description=\042
204 %S LOADING LOADING_COMMENT LOADING_XMLPI ENTITY GET_SYSTEM GET_FILE END_ENTITY
205 %S GET_ATTR GET_UINT_ATTR END_ATTR OUTSIDE IN_DICT IN_APPL IN_AVP APPL_ATTRS IGNORE_ATTR
206 %S TYPE_ATTRS GAVP_ATTRS ENUM_ATTRS AVP_ATTRS VENDOR_ATTRS COMMAND_ATTRS TYPEDEFN_ATTRS
207 %S XMLPI_ATTRS XMLPI_GETKEY XMLPI_GETVAL XMLPI_ENDATTR
210 <LOADING>{doctype_end} ;
212 <LOADING>{comment_start} BEGIN LOADING_COMMENT;
214 <LOADING_COMMENT>{comment_end} BEGIN LOADING;
216 <LOADING>{xmlpi_start} BEGIN LOADING_XMLPI;
217 <LOADING_XMLPI>{whitespace} ;
218 <LOADING_XMLPI>{entityname} {
219 xmlpi = g_malloc(sizeof(ddict_xmlpi_t));
220 xmlpi->name = g_strdup(yytext);
225 if (!dict->xmlpis) last_xmlpi = dict->xmlpis = xmlpi;
226 else last_xmlpi = last_xmlpi->next = xmlpi;
231 <XMLPI_ATTRS>{xmlpi_key_attr} BEGIN XMLPI_GETKEY;
232 <XMLPI_GETKEY>{ndquot} { xmlpi->key = strdup(yytext); BEGIN XMLPI_ATTRS; }
234 <XMLPI_ATTRS>{xmlpi_value_attr} BEGIN XMLPI_GETVAL;
235 <XMLPI_GETVAL>{ndquot} { xmlpi->value = strdup(yytext); BEGIN XMLPI_ATTRS; }
238 <XMLPI_ATTRS>{xmlpi_end} BEGIN LOADING;
241 <LOADING>{start_entity} BEGIN ENTITY;
242 <ENTITY>{entityname} {
243 entity_t* e = g_malloc(sizeof(entity_t));
244 e->name = strdup(yytext);
249 <GET_SYSTEM>{system} BEGIN GET_FILE;
251 ents.next->file = strdup(yytext);
254 <END_ENTITY>{end_entity} BEGIN LOADING;
256 <LOADING>{open_tag} APPEND("<",1);
258 <LOADING>{close_tag} APPEND(">",1);
260 <LOADING>{end_tag} APPEND("/>",2);
262 <LOADING>{open_closetag} APPEND("</",2);
264 <LOADING>{whitespace} APPEND(" ",1);
266 <LOADING>{dquoted} APPEND(yytext,yyleng);
268 <LOADING>{equals} APPEND("=",1);
270 <LOADING>{any} APPEND(yytext,yyleng);
276 while(*p != ';') p++;
280 D(("looking for entity: %s\n",yytext));
282 if ( include_stack_ptr >= MAX_INCLUDE_DEPTH ) {
283 fprintf(stderr, "included files nested to deeply\n");
287 include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER;
290 for (e = ents.next; e; e = e->next) {
291 if (strcmp(e->name,yytext) == 0) {
292 yyin = ddict_open(sys_dir,e->file);
293 D(("entity: %s filename: %s yyin: %p\n",e->name,e->file,yyin));
296 fprintf(stderr, "Could not open file: '%s', error: %s\n", e->file, strerror(errno) );
300 yy_switch_to_buffer(yy_create_buffer( yyin, YY_BUF_SIZE ) );
308 fprintf(stderr, "Could not find entity: '%s'", e->name );
315 if (!yyin) yyterminate();
318 D(("closing: %p %i\n",yyin,include_stack_ptr));
320 if ( --include_stack_ptr < 0 ) {
321 D(("DONE READING\n"));
325 yy_delete_buffer( YY_CURRENT_BUFFER );
326 yy_switch_to_buffer(include_stack[include_stack_ptr]);
333 *attr_str = strdup(yytext);
339 <GET_UINT_ATTR>{number} {
340 *attr_uint = strtoul(yytext,NULL,10);
346 <END_ATTR>{dquot} { yy_pop_state(); }
353 <IGNORE_ATTR>{ignored_quoted} {
354 D(("=>%s<=\n",yytext));
358 <OUTSIDE>{dictionary_start} {
359 D(("dictionary_start\n"));
364 <IN_DICT>{base_start} {
369 <IN_DICT>{applictation_start} {
370 D(("applictation_start\n"));
372 appl = g_malloc(sizeof(ddict_application_t));
377 if (!dict->applications) last_appl = dict->applications = appl;
378 else last_appl = last_appl->next = appl;
383 <APPL_ATTRS>{name_attr} { ATTR_STR(appl->name); }
384 <APPL_ATTRS>{id_attr} { ATTR_UINT(appl->code); }
386 <APPL_ATTRS>{stop} BEGIN IN_APPL;
387 <APPL_ATTRS>{stop_end} BEGIN IN_DICT;
389 <IN_APPL>{command_end} ;
391 <IN_APPL>{command_start} {
392 D(("command_start\n"));
394 cmd = g_malloc(sizeof(ddict_cmd_t));
400 if (!dict->cmds) last_cmd = dict->cmds = cmd;
401 else last_cmd = last_cmd->next = cmd;
406 <COMMAND_ATTRS>{name_attr} { ATTR_STR(cmd->name); }
407 <COMMAND_ATTRS>{vendor_attr} { ATTR_STR(cmd->vendor); }
408 <COMMAND_ATTRS>{code_attr} { ATTR_UINT(cmd->code); }
409 <COMMAND_ATTRS>{stop} |
410 <COMMAND_ATTRS>{stop_end} { BEGIN IN_APPL; }
412 <IN_APPL>{vendor_start} {
413 D(("vendor_start\n"));
415 vnd = g_malloc(sizeof(ddict_vendor_t));
420 if (!dict->vendors) last_vnd = dict->vendors = vnd;
421 else last_vnd = last_vnd->next = vnd;
426 <VENDOR_ATTRS>{name_attr} { ATTR_STR(vnd->desc); }
427 <VENDOR_ATTRS>{vendor_attr} { ATTR_STR(vnd->name); }
428 <VENDOR_ATTRS>{code_attr} { ATTR_UINT(vnd->code); }
429 <VENDOR_ATTRS>{stop} |
430 <VENDOR_ATTRS>{stop_end} { BEGIN IN_APPL; }
432 <IN_APPL>{typedefn_start} {
433 D(("typedefn_start\n"));
435 typedefn = g_malloc(sizeof(ddict_typedefn_t));
436 typedefn->name = NULL;
437 typedefn->parent = NULL;
438 typedefn->next = NULL;
440 if (!dict->typedefns) last_typedefn = dict->typedefns = typedefn;
441 else last_typedefn = last_typedefn->next = typedefn;
443 BEGIN TYPEDEFN_ATTRS;
446 <TYPEDEFN_ATTRS>{typename_attr} { ATTR_STR(typedefn->name); }
447 <TYPEDEFN_ATTRS>{typeparent_attr} { ATTR_STR(typedefn->parent); }
448 <TYPEDEFN_ATTRS>{stop} |
449 <TYPEDEFN_ATTRS>{stop_end} { BEGIN IN_APPL; }
452 <IN_APPL>{avp_start} {
455 avp = g_malloc(sizeof(ddict_avp_t));
457 avp->description = NULL;
465 if (! dict->avps ) last_avp = dict->avps = avp;
466 else last_avp = last_avp->next = avp;
471 <AVP_ATTRS>{name_attr} { ATTR_STR(avp->name); }
472 <AVP_ATTRS>{description_attr} { ATTR_STR(avp->description); }
473 <AVP_ATTRS>{vendor_attr} { ATTR_STR(avp->vendor); }
474 <AVP_ATTRS>{code_attr} { ATTR_UINT(avp->code); }
475 <AVP_ATTRS>{stop} { BEGIN IN_AVP; }
476 <AVP_ATTRS>{stop_end} { BEGIN IN_APPL; }
479 <IN_AVP>{grouped_start} { avp->type = strdup("Grouped"); };
480 <IN_AVP>{grouped_end} ;
482 <IN_AVP>{type_start} { BEGIN TYPE_ATTRS; }
483 <TYPE_ATTRS>{typename_attr} { ATTR_STR(avp->type); }
485 <IN_AVP>{gavp_start} {
488 gavp = g_malloc(sizeof(ddict_gavp_t));
493 if (!avp->gavps) last_gavp = avp->gavps = gavp;
494 else last_gavp = last_gavp->next = gavp;
500 <GAVP_ATTRS>{name_attr} { ATTR_STR(gavp->name); }
503 <IN_AVP>{enum_start} {
506 enumitem = g_malloc(sizeof(ddict_enum_t));
507 enumitem->name = NULL;
509 enumitem->next = NULL;
511 if (!avp->enums) last_enumitem = avp->enums = enumitem;
512 else last_enumitem = last_enumitem->next = enumitem;
518 <ENUM_ATTRS>{name_attr} { ATTR_STR(enumitem->name); }
519 <ENUM_ATTRS>{code_attr} { ATTR_UINT(enumitem->code); }
521 <TYPE_ATTRS,GAVP_ATTRS,ENUM_ATTRS>{stop} { BEGIN IN_AVP; }
522 <TYPE_ATTRS,GAVP_ATTRS,ENUM_ATTRS>{stop_end} { BEGIN IN_AVP; }
524 <IN_AVP>{avp_end} { D(("avp_end")); BEGIN IN_APPL; }
526 <IN_APPL>{application_end} |
527 <IN_APPL>{base_end} {
531 <IN_DICT>{dictionary_end} {
535 <AVP_ATTRS,ENUM_ATTRS,GAVP_ATTRS,TYPE_ATTRS,TYPEDEFN_ATTRS,VENDOR_ATTRS,APPL_ATTRS,COMMAND_ATTRS>{ignored_attr} IGNORE();
546 static int debugging = 0;
548 static void ddict_debug(const char* fmt, ...) {
552 if (debugging) vfprintf(stderr, fmt, ap);
559 static char* strbuf = NULL;
560 static char* write_ptr = NULL;
561 static char* read_ptr = NULL;
563 static unsigned size_strbuf = 8192;
564 static unsigned len_strbuf = 0;
566 extern void ddict_unused(void);
567 void ddict_unused(void) {
571 static void append_to_buffer(char* txt, int len) {
573 if (strbuf == NULL) {
574 read_ptr = write_ptr = strbuf = g_malloc(size_strbuf);
577 if ( (len_strbuf + len) >= size_strbuf ) {
578 read_ptr = strbuf = g_realloc(strbuf,size_strbuf *= 2);
581 write_ptr = strbuf + len_strbuf;
582 strncpy(write_ptr,txt,len);
587 static size_t file_input(char* buf, size_t max) {
590 read = fread(buf,1,max,yyin);
594 } else if (read > 0) {
602 static size_t string_input(char* buf, size_t max) {
603 if (read_ptr >= write_ptr ) {
605 } else if ( read_ptr + max > write_ptr ) {
606 max = write_ptr - read_ptr;
609 memcpy(buf,read_ptr,max);
615 static FILE* ddict_open(const char* system_directory, const char* filename) {
618 if (system_directory) {
619 int len = strlen(system_directory) + strlen(filename) + strlen(DDICT_DIRSEP) + 1;
620 fname = g_malloc(len);
621 g_snprintf(fname, len, "%s%s%s",system_directory,DDICT_DIRSEP,filename);
623 fname = strdup(filename);
626 fh = fopen(fname,"r");
628 D(("fname: %s fh: %p\n",fname,fh));
636 ddict_t* ddict_scan(const char* system_directory, const char* filename, int dbg) {
640 sys_dir = system_directory;
642 yyin = ddict_open(sys_dir,filename);
645 D(("unable to open %s\n", filename));
652 dict = g_malloc(sizeof(ddict_t));
653 dict->applications = NULL;
655 dict->vendors = NULL;
656 dict->typedefns = NULL;
671 last_enumitem = NULL;
673 last_typedefn = NULL;
679 current_yyinput = file_input;
683 D(("\n---------------\n%s\n------- %d -------\n",strbuf,len_strbuf));
685 current_yyinput = string_input;
697 void ddict_free(ddict_t* d) {
698 ddict_application_t *p, *pn;
699 ddict_vendor_t *v, *vn;
701 ddict_typedefn_t *t, *tn;
704 #define FREE_NAMEANDOBJ(n) do { if(n->name) g_free(n->name); g_free(n); } while(0)
706 for (p = d->applications; p; p = pn ) {
711 for (v = d->vendors; v; v = vn) {
713 if (!v->desc) g_free(v->desc);
717 for (c = d->cmds; c; c = cn ) {
722 for (t = d->typedefns; t; t = tn) {
724 if (!t->parent) g_free(t->parent);
728 for (a = d->avps; a; a = an) {
729 ddict_gavp_t* g, *gn;
730 ddict_enum_t* e, *en;
733 for (g = a->gavps; g; g = gn) {
738 for (e = a->enums; e; e = en) {
743 if (!a->vendor) g_free(a->vendor);
744 if (!a->type) g_free(a->type);
745 if (!a->description) g_free(a->description);
752 void ddict_print(FILE* fh, ddict_t* d) {
753 ddict_application_t* p;
760 for (p = d->applications; p; p = p->next) {
761 fprintf(fh,"Application: %s[%u]:\n",
762 p->name ? p->name : "-",
766 for (v = d->vendors; v; v = v->next) {
767 fprintf(fh,"Vendor: %s[%u]:\n",
768 v->name ? v->name : "-",
772 for (c = d->cmds; c; c = c->next) {
773 fprintf(fh,"Command: %s[%u] \n",
774 c->name ? c->name : "-",
778 for (t = d->typedefns; t; t = t->next) {
779 fprintf(fh,"Type: %s -> %s \n",
780 t->name ? t->name : "-",
781 t->parent ? t->parent : "" );
784 for (a = d->avps; a; a = a->next) {
787 fprintf(fh,"AVP: %s[%u:%s] %s %s\n",
788 a->name ? a->name : "-",
790 a->vendor ? a->vendor : "None",
791 a->type ? a->type : "-",
792 a->description ? a->description : "");
794 for (g = a->gavps; g; g = g->next) {
795 fprintf(fh,"\tGAVP: %s\n",
796 g->name ? g->name : "-" );
799 for (e = a->enums; e; e = e->next) {
800 fprintf(fh,"\tEnum: %s[%u]\n",
801 e->name ? e->name : "-",
807 #ifdef TEST_DIAM_DICT_STANDALONE
808 int main(int argc, char** argv) {
821 fprintf(stderr,"%s: usage [dictionary_dir] dictionary_filename\n",argv[0]);
825 d = ddict_scan(dname,fname,1);
827 ddict_print(stdout, d);