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-rw-r--r--jcnf/yajl/yajl.c152
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diff --git a/jcnf/yajl/yajl.c b/jcnf/yajl/yajl.c
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+/*
+ * Copyright 2007-2009, Lloyd Hilaiel.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. Neither the name of Lloyd Hilaiel nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "yajl_parse.h"
+#include "yajl_lex.h"
+#include "yajl_parser.h"
+#include "yajl_alloc.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+const char *
+yajl_status_to_string(yajl_status stat)
+{
+ const char * statStr = "unknown";
+ switch (stat) {
+ case yajl_status_ok:
+ statStr = "ok, no error";
+ break;
+ case yajl_status_client_canceled:
+ statStr = "client canceled parse";
+ break;
+ case yajl_status_insufficient_data:
+ statStr = "eof was met before the parse could complete";
+ break;
+ case yajl_status_error:
+ statStr = "parse error";
+ break;
+ }
+ return statStr;
+}
+
+yajl_handle
+yajl_alloc(const yajl_callbacks * callbacks,
+ const yajl_parser_config * config,
+ const yajl_alloc_funcs * afs,
+ void * ctx)
+{
+ unsigned int allowComments = 0;
+ unsigned int validateUTF8 = 0;
+ yajl_handle hand = NULL;
+ yajl_alloc_funcs afsBuffer;
+
+ /* first order of business is to set up memory allocation routines */
+ if (afs != NULL) {
+ if (afs->malloc == NULL || afs->realloc == NULL || afs->free == NULL)
+ {
+ return NULL;
+ }
+ } else {
+ yajl_set_default_alloc_funcs(&afsBuffer);
+ afs = &afsBuffer;
+ }
+
+ hand = (yajl_handle) YA_MALLOC(afs, sizeof(struct yajl_handle_t));
+
+ /* copy in pointers to allocation routines */
+ memcpy((void *) &(hand->alloc), (void *) afs, sizeof(yajl_alloc_funcs));
+
+ if (config != NULL) {
+ allowComments = config->allowComments;
+ validateUTF8 = config->checkUTF8;
+ }
+
+ hand->callbacks = callbacks;
+ hand->ctx = ctx;
+ hand->lexer = yajl_lex_alloc(&(hand->alloc), allowComments, validateUTF8);
+ hand->errorOffset = 0;
+ hand->decodeBuf = yajl_buf_alloc(&(hand->alloc));
+ yajl_bs_init(hand->stateStack, &(hand->alloc));
+
+ yajl_bs_push(hand->stateStack, yajl_state_start);
+
+ return hand;
+}
+
+void
+yajl_free(yajl_handle handle)
+{
+ yajl_bs_free(handle->stateStack);
+ yajl_buf_free(handle->decodeBuf);
+ yajl_lex_free(handle->lexer);
+ YA_FREE(&(handle->alloc), handle);
+}
+
+yajl_status
+yajl_parse(yajl_handle hand, const unsigned char * jsonText,
+ unsigned int jsonTextLen)
+{
+ unsigned int offset = 0;
+ yajl_status status;
+ status = yajl_do_parse(hand, &offset, jsonText, jsonTextLen);
+ return status;
+}
+
+yajl_status
+yajl_parse_complete(yajl_handle hand)
+{
+ /* The particular case we want to handle is a trailing number.
+ * Further input consisting of digits could cause our interpretation
+ * of the number to change (buffered "1" but "2" comes in).
+ * A very simple approach to this is to inject whitespace to terminate
+ * any number in the lex buffer.
+ */
+ return yajl_parse(hand, (const unsigned char *)" ", 1);
+}
+
+unsigned char *
+yajl_get_error(yajl_handle hand, int verbose,
+ const unsigned char * jsonText, unsigned int jsonTextLen)
+{
+ return yajl_render_error_string(hand, jsonText, jsonTextLen, verbose);
+}
+
+void
+yajl_free_error(yajl_handle hand, unsigned char * str)
+{
+ /* use memory allocation functions if set */
+ YA_FREE(&(hand->alloc), str);
+}
+
+/* XXX: add utility routines to parse from file */