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/* |
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* Copyright 2010 John-Mark Bell |
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* |
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* This file is part of NetSurf, http://www.netsurf-browser.org/ |
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* |
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* NetSurf is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; version 2 of the License. |
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* |
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* NetSurf is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see . |
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*/ |
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#include |
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#include "utils/http/generics.h" |
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#include "utils/http/primitives.h" |
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/** |
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* Destructor for an item list |
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* |
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* \param list List to destroy |
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*/ |
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void http___item_list_destroy(http__item *list) |
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{ |
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while (list != NULL) { |
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http__item *victim = list; |
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list = victim->next; |
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victim->free(victim); |
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} |
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} |
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/** |
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* Parse a list of items |
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* |
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* \param input Pointer to current input byte. Updated on exit. |
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* \param itemparser Pointer to function to parse list items |
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* \param first Pointer to first item, or NULL. |
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* \param parameters Pointer to location to receive on-heap parameter list. |
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* \return NSERROR_OK on success, |
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* NSERROR_NOMEM on memory exhaustion, |
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* NSERROR_NOT_FOUND if no items could be parsed |
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* |
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* The returned list is owned by the caller |
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* |
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* \note Ownership of the \a first item is passed to this function. |
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*/ |
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nserror http___item_list_parse(const char **input, |
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http__itemparser itemparser, http__item *first, |
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http__item **items) |
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{ |
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const char *pos = *input; |
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const char separator = *pos; |
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http__item *item; |
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http__item *list = first; |
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nserror error = NSERROR_OK; |
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/* 1*( - ) */
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while (*pos == separator) { |
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pos++; |
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http__skip_LWS(&pos); |
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error = itemparser(&pos, &item); |
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if (error == NSERROR_OK) { |
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if (list != NULL) |
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item->next = list; |
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list = item; |
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http__skip_LWS(&pos); |
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} else if (error != NSERROR_NOT_FOUND) { |
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/* Permit LWS */ |
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break; |
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} |
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} |
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if (error != NSERROR_OK && error != NSERROR_NOT_FOUND) { |
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http__item_list_destroy(list); |
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} else if (list == NULL) { |
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error = NSERROR_NOT_FOUND; |
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} else { |
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error = NSERROR_OK; |
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*items = list; |
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*input = pos; |
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} |
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return error; |
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} |
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