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Sat Aug 15 13:08:37 2015 UTC (9 years, 7 months ago) by amb
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Sat Aug 15 13:08:37 2015 UTC (9 years, 7 months ago) by amb
File MIME type: text/x-csrc
File size: 16574 byte(s)
Merge libroutino branch back into the trunk.
1 | /*************************************** |
2 | $Header: /home/amb/CVS/routino/src/xml/xsd-to-xmlparser.c,v 1.10 2010-04-23 18:41:20 amb Exp $ |
3 | |
4 | An XML parser for simplified XML Schema Definitions to create XML parser skeletons. |
5 | |
6 | Part of the Routino routing software. |
7 | ******************/ /****************** |
8 | This file Copyright 2010-2015 Andrew M. Bishop |
9 | |
10 | This program is free software: you can redistribute it and/or modify |
11 | it under the terms of the GNU Affero General Public License as published by |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. |
14 | |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
18 | GNU Affero General Public License for more details. |
19 | |
20 | You should have received a copy of the GNU Affero General Public License |
21 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
22 | ***************************************/ |
23 | |
24 | |
25 | #include <stdio.h> |
26 | #if !defined(_MSC_VER) |
27 | #include <unistd.h> |
28 | #endif |
29 | #include <ctype.h> |
30 | #include <stdlib.h> |
31 | #include <string.h> |
32 | |
33 | #include "xmlparse.h" |
34 | |
35 | |
36 | /*+ A forward definition of the xmltagx +*/ |
37 | typedef struct _xmltagx xmltagx; |
38 | |
39 | |
40 | /*+ A structure to hold the extended definition of a tag. +*/ |
41 | struct _xmltagx |
42 | { |
43 | char *name; /*+ The name of the tag. +*/ |
44 | char *type; /*+ The type of the tag. +*/ |
45 | |
46 | int nattributes; /*+ The number of valid attributes for the tag. +*/ |
47 | char *attributes[XMLPARSE_MAX_ATTRS]; /*+ The valid attributes for the tag. +*/ |
48 | |
49 | int nsubtagsx; /*+ The number of valid attributes for the tag. +*/ |
50 | xmltagx *subtagsx[XMLPARSE_MAX_SUBTAGS]; /*+ The list of types for the subtags contained within this one. +*/ |
51 | }; |
52 | |
53 | |
54 | /* The local variables and functions */ |
55 | |
56 | int ntagsx=0; |
57 | xmltagx **tagsx=NULL; |
58 | char *currenttype=NULL; |
59 | |
60 | static char *safe(const char *name); |
61 | |
62 | |
63 | /* The XML tag processing function prototypes */ |
64 | |
65 | static int xmlDeclaration_function(const char *_tag_,int _type_,const char *version,const char *encoding); |
66 | static int schemaType_function(const char *_tag_,int _type_,const char *elementFormDefault,const char *xmlns_xsd); |
67 | static int elementType_function(const char *_tag_,int _type_,const char *name,const char *type,const char *minOccurs,const char *maxOccurs); |
68 | static int complexType_function(const char *_tag_,int _type_,const char *name); |
69 | static int sequenceType_function(const char *_tag_,int _type_); |
70 | static int attributeType_function(const char *_tag_,int _type_,const char *name,const char *type); |
71 | |
72 | |
73 | /* The XML tag definitions (forward declarations) */ |
74 | |
75 | static const xmltag xmlDeclaration_tag; |
76 | static const xmltag schemaType_tag; |
77 | static const xmltag elementType_tag; |
78 | static const xmltag complexType_tag; |
79 | static const xmltag sequenceType_tag; |
80 | static const xmltag attributeType_tag; |
81 | |
82 | |
83 | /* The XML tag definition values */ |
84 | |
85 | /*+ The complete set of tags at the top level. +*/ |
86 | static const xmltag * const xml_toplevel_tags[]={&xmlDeclaration_tag,&schemaType_tag,NULL}; |
87 | |
88 | /*+ The xmlDeclaration type tag. +*/ |
89 | static const xmltag xmlDeclaration_tag= |
90 | {"xml", |
91 | 2, {"version","encoding"}, |
92 | xmlDeclaration_function, |
93 | {NULL}}; |
94 | |
95 | /*+ The schemaType type tag. +*/ |
96 | static const xmltag schemaType_tag= |
97 | {"xsd:schema", |
98 | 2, {"elementFormDefault","xmlns:xsd"}, |
99 | schemaType_function, |
100 | {&elementType_tag,&complexType_tag,NULL}}; |
101 | |
102 | /*+ The elementType type tag. +*/ |
103 | static const xmltag elementType_tag= |
104 | {"xsd:element", |
105 | 4, {"name","type","minOccurs","maxOccurs"}, |
106 | elementType_function, |
107 | {NULL}}; |
108 | |
109 | /*+ The complexType type tag. +*/ |
110 | static const xmltag complexType_tag= |
111 | {"xsd:complexType", |
112 | 1, {"name"}, |
113 | complexType_function, |
114 | {&sequenceType_tag,&attributeType_tag,NULL}}; |
115 | |
116 | /*+ The sequenceType type tag. +*/ |
117 | static const xmltag sequenceType_tag= |
118 | {"xsd:sequence", |
119 | 0, {NULL}, |
120 | sequenceType_function, |
121 | {&elementType_tag,NULL}}; |
122 | |
123 | /*+ The attributeType type tag. +*/ |
124 | static const xmltag attributeType_tag= |
125 | {"xsd:attribute", |
126 | 2, {"name","type"}, |
127 | attributeType_function, |
128 | {NULL}}; |
129 | |
130 | |
131 | /* The XML tag processing functions */ |
132 | |
133 | |
134 | /*++++++++++++++++++++++++++++++++++++++ |
135 | The function that is called when the XML declaration is seen |
136 | |
137 | int xmlDeclaration_function Returns 0 if no error occured or something else otherwise. |
138 | |
139 | const char *_tag_ Set to the name of the element tag that triggered this function call. |
140 | |
141 | int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag. |
142 | |
143 | const char *version The contents of the 'version' attribute (or NULL if not defined). |
144 | |
145 | const char *encoding The contents of the 'encoding' attribute (or NULL if not defined). |
146 | ++++++++++++++++++++++++++++++++++++++*/ |
147 | |
148 | static int xmlDeclaration_function(const char *_tag_,int _type_,const char *version,const char *encoding) |
149 | { |
150 | /* Add the XML declaration as a tag. */ |
151 | |
152 | currenttype=NULL; |
153 | elementType_function("xsd:element",XMLPARSE_TAG_START|XMLPARSE_TAG_END,"xml","xmlDeclaration",NULL,NULL); |
154 | complexType_function("xsd:complexType",XMLPARSE_TAG_START,"xmlDeclaration"); |
155 | attributeType_function("xsd:attribute",XMLPARSE_TAG_START|XMLPARSE_TAG_END,"version",NULL); |
156 | attributeType_function("xsd:attribute",XMLPARSE_TAG_START|XMLPARSE_TAG_END,"encoding",NULL); |
157 | complexType_function("xsd:complexType",XMLPARSE_TAG_END,NULL); |
158 | currenttype=NULL; |
159 | |
160 | return(0); |
161 | } |
162 | |
163 | |
164 | /*++++++++++++++++++++++++++++++++++++++ |
165 | The function that is called when the schemaType XSD type is seen |
166 | |
167 | int schemaType_function Returns 0 if no error occured or something else otherwise. |
168 | |
169 | const char *_tag_ Set to the name of the element tag that triggered this function call. |
170 | |
171 | int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag. |
172 | |
173 | const char *elementFormDefault The contents of the 'elementFormDefault' attribute (or NULL if not defined). |
174 | |
175 | const char *xmlns_xsd The contents of the 'xmlns:xsd' attribute (or NULL if not defined). |
176 | ++++++++++++++++++++++++++++++++++++++*/ |
177 | |
178 | static int schemaType_function(const char *_tag_,int _type_,const char *elementFormDefault,const char *xmlns_xsd) |
179 | { |
180 | return(0); |
181 | } |
182 | |
183 | |
184 | /*++++++++++++++++++++++++++++++++++++++ |
185 | The function that is called when the elementType XSD type is seen |
186 | |
187 | int elementType_function Returns 0 if no error occured or something else otherwise. |
188 | |
189 | const char *_tag_ Set to the name of the element tag that triggered this function call. |
190 | |
191 | int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag. |
192 | |
193 | const char *name The contents of the 'name' attribute (or NULL if not defined). |
194 | |
195 | const char *type The contents of the 'type' attribute (or NULL if not defined). |
196 | |
197 | const char *minOccurs The contents of the 'minOccurs' attribute (or NULL if not defined). |
198 | |
199 | const char *maxOccurs The contents of the 'maxOccurs' attribute (or NULL if not defined). |
200 | ++++++++++++++++++++++++++++++++++++++*/ |
201 | |
202 | static int elementType_function(const char *_tag_,int _type_,const char *name,const char *type,const char *minOccurs,const char *maxOccurs) |
203 | { |
204 | xmltagx *tagx=NULL; |
205 | int i; |
206 | |
207 | if(_type_==XMLPARSE_TAG_END) |
208 | return(0); |
209 | |
210 | for(i=0;i<ntagsx;i++) |
211 | if(!strcmp(type,tagsx[i]->type) && !strcmp(name,tagsx[i]->name)) |
212 | tagx=tagsx[i]; |
213 | |
214 | if(!tagx) |
215 | { |
216 | ntagsx++; |
217 | tagsx=(xmltagx**)realloc((void*)tagsx,ntagsx*sizeof(xmltagx*)); |
218 | |
219 | tagsx[ntagsx-1]=(xmltagx*)calloc(1,sizeof(xmltagx)); |
220 | tagsx[ntagsx-1]->name=strcpy(malloc(strlen(name)+1),name); |
221 | tagsx[ntagsx-1]->type=strcpy(malloc(strlen(type)+1),type); |
222 | |
223 | tagx=tagsx[ntagsx-1]; |
224 | } |
225 | |
226 | if(!currenttype) |
227 | return(0); |
228 | |
229 | for(i=0;i<ntagsx;i++) |
230 | if(!strcmp(tagsx[i]->type,currenttype)) |
231 | { |
232 | tagsx[i]->subtagsx[tagsx[i]->nsubtagsx]=tagx; |
233 | tagsx[i]->nsubtagsx++; |
234 | |
235 | if(tagsx[i]->nsubtagsx==XMLPARSE_MAX_SUBTAGS) |
236 | {fprintf(stderr,"Too many subtags seen for type '%s'.\n",currenttype); exit(1);} |
237 | } |
238 | |
239 | return(0); |
240 | } |
241 | |
242 | |
243 | /*++++++++++++++++++++++++++++++++++++++ |
244 | The function that is called when the complexType XSD type is seen |
245 | |
246 | int complexType_function Returns 0 if no error occured or something else otherwise. |
247 | |
248 | const char *_tag_ Set to the name of the element tag that triggered this function call. |
249 | |
250 | int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag. |
251 | |
252 | const char *name The contents of the 'name' attribute (or NULL if not defined). |
253 | ++++++++++++++++++++++++++++++++++++++*/ |
254 | |
255 | static int complexType_function(const char *_tag_,int _type_,const char *name) |
256 | { |
257 | if(_type_==XMLPARSE_TAG_END) |
258 | return(0); |
259 | |
260 | currenttype=strcpy(realloc(currenttype,strlen(name)+1),name); |
261 | |
262 | return(0); |
263 | } |
264 | |
265 | |
266 | /*++++++++++++++++++++++++++++++++++++++ |
267 | The function that is called when the sequenceType XSD type is seen |
268 | |
269 | int sequenceType_function Returns 0 if no error occured or something else otherwise. |
270 | |
271 | const char *_tag_ Set to the name of the element tag that triggered this function call. |
272 | |
273 | int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag. |
274 | ++++++++++++++++++++++++++++++++++++++*/ |
275 | |
276 | static int sequenceType_function(const char *_tag_,int _type_) |
277 | { |
278 | return(0); |
279 | } |
280 | |
281 | |
282 | /*++++++++++++++++++++++++++++++++++++++ |
283 | The function that is called when the attributeType XSD type is seen |
284 | |
285 | int attributeType_function Returns 0 if no error occured or something else otherwise. |
286 | |
287 | const char *_tag_ Set to the name of the element tag that triggered this function call. |
288 | |
289 | int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag. |
290 | |
291 | const char *name The contents of the 'name' attribute (or NULL if not defined). |
292 | |
293 | const char *type The contents of the 'type' attribute (or NULL if not defined). |
294 | ++++++++++++++++++++++++++++++++++++++*/ |
295 | |
296 | static int attributeType_function(const char *_tag_,int _type_,const char *name,const char *type) |
297 | { |
298 | int i; |
299 | |
300 | if(_type_==XMLPARSE_TAG_END) |
301 | return(0); |
302 | |
303 | for(i=0;i<ntagsx;i++) |
304 | if(!strcmp(tagsx[i]->type,currenttype)) |
305 | { |
306 | tagsx[i]->attributes[tagsx[i]->nattributes]=strcpy(malloc(strlen(name)+1),name); |
307 | tagsx[i]->nattributes++; |
308 | |
309 | if(tagsx[i]->nattributes==XMLPARSE_MAX_ATTRS) |
310 | {fprintf(stderr,"Too many attributes seen for type '%s'.\n",currenttype); exit(1);} |
311 | } |
312 | |
313 | return(0); |
314 | } |
315 | |
316 | |
317 | /*++++++++++++++++++++++++++++++++++++++ |
318 | The XML Schema Definition XML parser and C program generator. |
319 | ++++++++++++++++++++++++++++++++++++++*/ |
320 | |
321 | int main(int argc,char **argv) |
322 | { |
323 | int i,j; |
324 | |
325 | /* Parse the XSD file */ |
326 | |
327 | if(ParseXML(STDIN_FILENO,xml_toplevel_tags,XMLPARSE_UNKNOWN_ATTR_IGNORE)) |
328 | { |
329 | fprintf(stderr,"Cannot parse XML file - exiting.\n"); |
330 | exit(1); |
331 | } |
332 | |
333 | /* Print the header */ |
334 | |
335 | printf("/***************************************\n"); |
336 | printf(" An automatically generated skeleton XML parser.\n"); |
337 | printf("\n"); |
338 | printf(" Automatically generated by xsd-to-xmlparser.\n"); |
339 | printf(" ***************************************/\n"); |
340 | printf("\n"); |
341 | printf("\n"); |
342 | printf("#include <stdio.h>\n"); |
343 | printf("#if !defined(_MSC_VER)\n"); |
344 | printf("#include <unistd.h>\n"); |
345 | printf("#endif\n"); |
346 | printf("\n"); |
347 | printf("#include \"xmlparse.h\"\n"); |
348 | |
349 | /* Print the function prototypes */ |
350 | |
351 | printf("\n"); |
352 | printf("\n"); |
353 | printf("/* The XML tag processing function prototypes */\n"); |
354 | printf("\n"); |
355 | |
356 | for(i=0;i<ntagsx;i++) |
357 | { |
358 | printf("static int %s_function(const char *_tag_,int _type_",safe(tagsx[i]->type)); |
359 | |
360 | for(j=0;j<tagsx[i]->nattributes;j++) |
361 | printf(",const char *%s",safe(tagsx[i]->attributes[j])); |
362 | |
363 | printf(");\n"); |
364 | } |
365 | |
366 | /* Print the xmltag variables */ |
367 | |
368 | printf("\n"); |
369 | printf("\n"); |
370 | printf("/* The XML tag definitions (forward declarations) */\n"); |
371 | |
372 | printf("\n"); |
373 | |
374 | for(i=0;i<ntagsx;i++) |
375 | printf("static const xmltag %s_tag;\n",safe(tagsx[i]->type)); |
376 | |
377 | printf("\n"); |
378 | printf("\n"); |
379 | printf("/* The XML tag definition values */\n"); |
380 | |
381 | printf("\n"); |
382 | printf("/*+ The complete set of tags at the top level. +*/\n"); |
383 | printf("static const xmltag * const xml_toplevel_tags[]={"); |
384 | printf("&%s_tag,",safe(tagsx[0]->type)); |
385 | printf("&%s_tag,",safe(tagsx[1]->type)); |
386 | printf("NULL};\n"); |
387 | |
388 | for(i=0;i<ntagsx;i++) |
389 | { |
390 | printf("\n"); |
391 | printf("/*+ The %s type tag. +*/\n",tagsx[i]->type); |
392 | printf("static const xmltag %s_tag=\n",safe(tagsx[i]->type)); |
393 | printf(" {\"%s\",\n",tagsx[i]->name); |
394 | |
395 | printf(" %d, {",tagsx[i]->nattributes); |
396 | for(j=0;j<tagsx[i]->nattributes;j++) |
397 | printf("%s\"%s\"",(j?",":""),tagsx[i]->attributes[j]); |
398 | printf("%s},\n",(tagsx[i]->nattributes?"":"NULL")); |
399 | |
400 | printf(" %s_function,\n",safe(tagsx[i]->type)); |
401 | |
402 | printf(" {"); |
403 | for(j=0;j<tagsx[i]->nsubtagsx;j++) |
404 | printf("&%s_tag,",safe(tagsx[i]->subtagsx[j]->type)); |
405 | printf("NULL}};\n"); |
406 | } |
407 | |
408 | /* Print the functions */ |
409 | |
410 | printf("\n"); |
411 | printf("\n"); |
412 | printf("/* The XML tag processing functions */\n"); |
413 | |
414 | for(i=0;i<ntagsx;i++) |
415 | { |
416 | printf("\n"); |
417 | printf("\n"); |
418 | printf("/*++++++++++++++++++++++++++++++++++++++\n"); |
419 | if(i==0) /* XML tag */ |
420 | printf(" The function that is called when the XML declaration is seen\n"); |
421 | else |
422 | printf(" The function that is called when the %s XSD type is seen\n",tagsx[i]->type); |
423 | printf("\n"); |
424 | printf(" int %s_function Returns 0 if no error occured or something else otherwise.\n",safe(tagsx[i]->type)); |
425 | printf("\n"); |
426 | printf(" const char *_tag_ Set to the name of the element tag that triggered this function call.\n"); |
427 | printf("\n"); |
428 | printf(" int _type_ Set to XMLPARSE_TAG_START at the start of a tag and/or XMLPARSE_TAG_END at the end of a tag.\n"); |
429 | for(j=0;j<tagsx[i]->nattributes;j++) |
430 | { |
431 | printf("\n"); |
432 | printf(" const char *%s The contents of the '%s' attribute (or NULL if not defined).\n",safe(tagsx[i]->attributes[j]),tagsx[i]->attributes[j]); |
433 | } |
434 | printf(" ++++++++++++++++++++++++++++++++++++++*/\n"); |
435 | printf("\n"); |
436 | |
437 | printf("static int %s_function(const char *_tag_,int _type_",safe(tagsx[i]->type)); |
438 | |
439 | for(j=0;j<tagsx[i]->nattributes;j++) |
440 | printf(",const char *%s",safe(tagsx[i]->attributes[j])); |
441 | |
442 | printf(")\n"); |
443 | |
444 | printf("{\n"); |
445 | |
446 | if(i==(ntagsx-1)) /* XML tag */ |
447 | { |
448 | printf(" printf(\"<?%%s\",_tag_);\n"); |
449 | for(j=0;j<tagsx[i]->nattributes;j++) |
450 | { |
451 | char *safename=safe(tagsx[i]->attributes[j]); |
452 | printf(" if(%s) printf(\" %s=\\\"%%s\\\"\",ParseXML_Encode_Safe_XML(%s));\n",safename,tagsx[i]->attributes[j],safename); |
453 | } |
454 | printf(" printf(\" ?>\\n\");\n"); |
455 | } |
456 | else |
457 | { |
458 | printf(" printf(\"<%%s%%s\",(_type_==XMLPARSE_TAG_END)?\"/\":\"\",_tag_);\n"); |
459 | for(j=0;j<tagsx[i]->nattributes;j++) |
460 | { |
461 | char *safename=safe(tagsx[i]->attributes[j]); |
462 | printf(" if(%s) printf(\" %s=\\\"%%s\\\"\",ParseXML_Encode_Safe_XML(%s));\n",safename,tagsx[i]->attributes[j],safename); |
463 | } |
464 | printf(" printf(\"%%s>\\n\",(_type_==(XMLPARSE_TAG_START|XMLPARSE_TAG_END))?\" /\":\"\");\n"); |
465 | } |
466 | |
467 | printf(" return(0);\n"); |
468 | printf("}\n"); |
469 | } |
470 | |
471 | /* Print the main function */ |
472 | |
473 | printf("\n"); |
474 | printf("\n"); |
475 | printf("/*++++++++++++++++++++++++++++++++++++++\n"); |
476 | printf(" A skeleton XML parser.\n"); |
477 | printf(" ++++++++++++++++++++++++++++++++++++++*/\n"); |
478 | printf("\n"); |
479 | printf("int main(int argc,char **argv)\n"); |
480 | printf("{\n"); |
481 | printf(" if(ParseXML(STDIN_FILENO,xml_toplevel_tags,XMLPARSE_UNKNOWN_ATTR_WARN))\n"); |
482 | printf(" return(1);\n"); |
483 | printf(" else\n"); |
484 | printf(" return(0);\n"); |
485 | printf("}\n"); |
486 | |
487 | return(0); |
488 | } |
489 | |
490 | |
491 | /*++++++++++++++++++++++++++++++++++++++ |
492 | A function to return a safe C identifier from an XML tag or attribute name. |
493 | |
494 | char *safe Returns the safe name in a private string (only use once). |
495 | |
496 | const char *name The name to convert. |
497 | ++++++++++++++++++++++++++++++++++++++*/ |
498 | |
499 | static char *safe(const char *name) |
500 | { |
501 | static char *safe=NULL; /* static allocation of return value */ |
502 | int i; |
503 | |
504 | safe=realloc(safe,strlen(name)+1); |
505 | |
506 | for(i=0;name[i];i++) |
507 | if(isalnum(name[i])) |
508 | safe[i]=name[i]; |
509 | else |
510 | safe[i]='_'; |
511 | |
512 | safe[i]=0; |
513 | |
514 | return(safe); |
515 | } |
Properties
Name | Value |
---|---|
cvs:description | An XML parser that can convert XML Scheme description XML files into a skeleton source code file that works with the generic XML parser. |