136 lines
2.8 KiB
C
136 lines
2.8 KiB
C
/****************************************************************************
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* This file is part of the project Gwenhywfar.
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* AqHome (c) by 2024 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "./path.h"
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#include <gwenhywfar/stringlist.h>
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#include <gwenhywfar/text.h>
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#include <gwenhywfar/debug.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdlib.h>
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static void *_handleElement(const char *element, void *data, uint32_t flags, AQH_PATHHANDLERFN fn);
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void *AQH_Path_Handle(const char *path, void *data, uint32_t flags, AQH_PATHHANDLERFN fn)
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{
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if (path && *path) {
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GWEN_STRINGLIST *elementList;
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/* clear internal flags */
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flags&=~(AQH_PATH_FLAGS_ROOT | AQH_PATH_FLAGS_LAST);
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if (*path=='/') {
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flags|=AQH_PATH_FLAGS_ROOT;
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path++;
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}
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elementList=GWEN_StringList_fromString2(path, "/", 0, GWEN_TEXT_FLAGS_CHECK_BACKSLASH | GWEN_TEXT_FLAGS_DEL_QUOTES);
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if (elementList) {
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GWEN_STRINGLISTENTRY *se;
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se=GWEN_StringList_FirstEntry(elementList);
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while(se) {
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const char *s;
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GWEN_STRINGLISTENTRY *seNext;
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seNext=GWEN_StringListEntry_Next(se);
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if (seNext)
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flags&=~AQH_PATH_FLAGS_LAST;
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else
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flags|=AQH_PATH_FLAGS_LAST;
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s=GWEN_StringListEntry_Data(se);
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if (s && *s) {
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void *result;
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result=_handleElement(s, data, flags, fn);
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if (result==NULL) {
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DBG_INFO(NULL, "Error handling element \"%s\" (%08x)", s, flags);
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GWEN_StringList_free(elementList);
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return NULL;
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}
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data=result;
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}
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flags&=~AQH_PATH_FLAGS_ROOT;
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se=GWEN_StringListEntry_Next(se);
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}
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GWEN_StringList_free(elementList);
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return data;
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}
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else {
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DBG_INFO(NULL, "Error reading path \"%s\" into stringlist", path);
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}
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}
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else {
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DBG_ERROR(NULL, "Empty path given");
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}
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return NULL;
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}
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void *_handleElement(const char *element, void *data, uint32_t flags, AQH_PATHHANDLERFN fn)
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{
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if (flags & AQH_PATH_FLAGS_PARSEIDX) {
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const char *ptrOpenBracket;
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ptrOpenBracket=strchr(element, '[');
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if (ptrOpenBracket) {
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if (ptrOpenBracket!=element) {
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const char *s;
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int idx=0;
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s=ptrOpenBracket+1;
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while(*s && isdigit(*s)) {
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idx*=10;
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idx+=*s-'0';
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s++;
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}
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if (*s!=']') {
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DBG_ERROR(NULL, "Closed bracket expected (got \"%c\")", *s);
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return NULL;
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}
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else {
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char *rawElement;
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void *result;
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s++;
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rawElement=GWEN_Text_strndup(element, ptrOpenBracket-element);
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result=fn?fn(rawElement, data, idx, flags):data;
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free(rawElement);
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return result;
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}
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}
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else {
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DBG_ERROR(NULL, "Empty element with index");
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return NULL;
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}
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}
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}
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return fn(element, data, 0, flags);
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}
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#include "./path-t.c"
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