added missing licenses

[chaz/yoink] / src / Moof / yajl / src / yajl.c

diff --git a/src/Moof/yajl/src/yajl.c b/src/Moof/yajl/src/yajl.c
new file mode 100644 (file)
index 0000000..d9ab9ba
--- /dev/null
+++ b/src/Moof/yajl/src/yajl.c
@@ -0,0 +1,152 @@
+/*
+ * 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/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 */