Remove Controller that is now stand alone.

Also move filescan and wrap-json library into a separate
submodule afb-utilities

Change-Id: Ic46cceb88cd25a808cbd0e5e6da53f56f9fc786c
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

7 files changed, 10 insertions, 1465 deletions

diff --git a/Audio-Common/CMakeLists.txt b/Audio-Common/CMakeLists.txt
index bd3f344..e50edd2 100644
--- a/Audio-Common/CMakeLists.txt
+++ b/Audio-Common/CMakeLists.txt
@@ -19,8 +19,8 @@
 # Add target to project dependency list
 PROJECT_TARGET_ADD(audio-common)
 
-    # Define targets 
-    ADD_LIBRARY(${TARGET_NAME} STATIC audio-common.c wrap-json.c filescan-utils)
+    # Define targets
+    ADD_LIBRARY(${TARGET_NAME} STATIC audio-common.c)
 
     # Library properties
     SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
@@ -28,11 +28,11 @@ PROJECT_TARGET_ADD(audio-common)
     )
 
     # Library dependencies
-    #TARGET_LINK_LIBRARIES(${TARGET_NAME}
-    #  empty
-    #)
-   
+    TARGET_LINK_LIBRARIES(${TARGET_NAME}
+      afb-utilities
+    )
+
     # Define target includes
-    TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME} 
+    TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME}
         PUBLIC  ${CMAKE_CURRENT_SOURCE_DIR}
-)
\ No newline at end of file
+)
diff --git a/Audio-Common/audio-common.h b/Audio-Common/audio-common.h
index 0a68eb3..c61b07f 100644
--- a/Audio-Common/audio-common.h
+++ b/Audio-Common/audio-common.h
@@ -25,8 +25,8 @@
 #define AFB_BINDING_VERSION 2
 #include <afb/afb-binding.h>
 #include <json-c/json.h>
-#include "filescan-utils.h"
-#include "wrap-json.h"
+#include <filescan-utils.h>
+#include <wrap-json.h>
 
 // Waiting for official macro from José
 #define AFB_GET_VERBOSITY afb_get_verbosity_v2()
diff --git a/Audio-Common/filescan-utils.c b/Audio-Common/filescan-utils.c
deleted file mode 100644
index 4a5613f..0000000
--- a/Audio-Common/filescan-utils.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (C) 2016 "IoT.bzh"
- * Author Fulup Ar Foll <fulup@iot.bzh>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <string.h>
-#include <time.h>
-#include <sys/prctl.h>
-#include <dirent.h>
-
-#include "audio-common.h"
-
-
-
-// List Avaliable Configuration Files
-PUBLIC json_object* ScanForConfig (const char* searchPath, CtlScanDirModeT mode, const char *pre, const char *ext) {
-    json_object *responseJ;
-    char *dirPath;
-    char* dirList= strdup(searchPath);
-    size_t extLen=0;        
-    
-    void ScanDir (char *searchPath) {
-    DIR  *dirHandle;
-        struct dirent *dirEnt;
-        dirHandle = opendir (searchPath);
-        if (!dirHandle) {
-            AFB_DEBUG ("CONFIG-SCANNING dir=%s not readable", searchPath);
-            return;
-        } 
-        
-        //AFB_NOTICE ("CONFIG-SCANNING:ctl_listconfig scanning: %s", searchPath);
-        while ((dirEnt = readdir(dirHandle)) != NULL) {
-            
-            // recursively search embedded directories ignoring any directory starting by '.' or '_'
-            if (dirEnt->d_type == DT_DIR && mode == CTL_SCAN_RECURSIVE) {
-                char newpath[CONTROL_MAXPATH_LEN];
-                if (dirEnt->d_name[0]=='.' || dirEnt->d_name[0]=='_') continue;
-                
-                strncpy(newpath, searchPath, sizeof(newpath)); 
-                strncat(newpath, "/", sizeof(newpath)); 
-                strncat(newpath, dirEnt->d_name, sizeof(newpath)); 
-                ScanDir(newpath);
-                continue;
-            }
-            
-            // Unknown type is accepted to support dump filesystems
-            if (dirEnt->d_type == DT_REG || dirEnt->d_type == DT_UNKNOWN) {
-
-                // check prefix and extention
-                size_t extIdx=strlen(dirEnt->d_name)-extLen;
-                if (extIdx <= 0) continue; 
-                if (pre && !strcasestr (dirEnt->d_name, pre)) continue;    
-                if (ext && strcasecmp (ext, &dirEnt->d_name[extIdx])) continue;    
-
-                struct json_object *pathJ = json_object_new_object();
-                json_object_object_add(pathJ, "fullpath", json_object_new_string(searchPath));
-                json_object_object_add(pathJ, "filename", json_object_new_string(dirEnt->d_name));
-                json_object_array_add(responseJ, pathJ);
-            }
-        }
-        closedir(dirHandle);
-    }
-
-    if (ext) extLen=strlen(ext);
-    responseJ = json_object_new_array();
-    
-    // loop recursively on dir
-    for (dirPath= strtok(dirList, ":"); dirPath && *dirPath; dirPath=strtok(NULL,":")) {
-         ScanDir (dirPath);
-    }
-    
-    free (dirList);    
-    return (responseJ);
-}
-
-PUBLIC const char *GetMidleName(const char*name) {
-    char *fullname = strdup(name);
-
-    for (int idx = 0; fullname[idx] != '\0'; idx++) {
-        int start;
-        if (fullname[idx] == '-') {
-            start = idx + 1;
-            for (int jdx = start; ; jdx++) {
-                if (fullname[jdx] == '-' || fullname[jdx] == '.' || fullname[jdx] == '\0') {
-                    fullname[jdx] = '\0';
-                    return &fullname[start];
-                    break;
-                }
-            }
-            break;
-        }
-    }
-    return "";
-}
-
-PUBLIC const char *GetBinderName() {
-    char psName[17];
-    static char *binderName=NULL;
-    
-    if (binderName) return binderName;
-    
-    binderName= getenv("AFB_BINDER_NAME");
-    if (!binderName) {
-        // retrieve binder name from process name afb-name-trailer
-        prctl(PR_GET_NAME, psName,NULL,NULL,NULL);
-        binderName=(char*)GetMidleName(psName);
-    }
-    
-    return binderName;
-}
\ No newline at end of file
diff --git a/Audio-Common/filescan-utils.h b/Audio-Common/filescan-utils.h
deleted file mode 100644
index cbe15de..0000000
--- a/Audio-Common/filescan-utils.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2016 "IoT.bzh"
- * Author Fulup Ar Foll <fulup@iot.bzh>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- * 
- * reference: 
- *   amixer contents; amixer controls;
- *   http://www.tldp.org/HOWTO/Alsa-sound-6.html 
- */
-
-#ifndef FILESCAN_UTILS_H
-#define FILESCAN_UTILS_H
-
-#ifndef PUBLIC
-  #define PUBLIC
-#endif
-#define STATIC static
-
-// ctl-misc.c
-typedef enum {
-  CTL_SCAN_FLAT=0,        
-  CTL_SCAN_RECURSIVE=1,
-} CtlScanDirModeT;
-
-PUBLIC const char *GetMidleName(const char*name);
-PUBLIC const char *GetBinderName();
-PUBLIC json_object* ScanForConfig (const char* searchPath, CtlScanDirModeT mode, const char *pre, const char *ext);
-
-#endif /* FILESCAN_UTILS_H */
-
diff --git a/Audio-Common/wrap-json.c b/Audio-Common/wrap-json.c
deleted file mode 100644
index 164e127..0000000
--- a/Audio-Common/wrap-json.c
+++ /dev/null
@@ -1,939 +0,0 @@
-/*
- Copyright (C) 2016, 2017 "IoT.bzh"
-
- author: José Bollo <jose.bollo@iot.bzh>
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-#include <string.h>
-
-#include "wrap-json.h"
-
-#define STACKCOUNT  32
-#define STRCOUNT    8
-
-enum {
-	wrap_json_error_none,
-	wrap_json_error_null_object,
-	wrap_json_error_truncated,
-	wrap_json_error_internal_error,
-	wrap_json_error_out_of_memory,
-	wrap_json_error_invalid_character,
-	wrap_json_error_too_long,
-	wrap_json_error_too_deep,
-	wrap_json_error_null_spec,
-	wrap_json_error_null_key,
-	wrap_json_error_null_string,
-	wrap_json_error_out_of_range,
-	wrap_json_error_incomplete,
-	wrap_json_error_missfit_type,
-	wrap_json_error_key_not_found,
-	_wrap_json_error_count_
-};
-
-static const char ignore_all[] = " \t\n\r,:";
-static const char pack_accept_arr[] = "][{snbiIfoO";
-static const char pack_accept_key[] = "s}";
-#define pack_accept_any (&pack_accept_arr[1])
-
-static const char unpack_accept_arr[] = "*!][{snbiIfFoO";
-static const char unpack_accept_key[] = "*!s}";
-#define unpack_accept_any (&unpack_accept_arr[3])
-
-static const char *pack_errors[_wrap_json_error_count_] =
-{
-	[wrap_json_error_none] = "unknown error",
-	[wrap_json_error_null_object] = "null object",
-	[wrap_json_error_truncated] = "truncated",
-	[wrap_json_error_internal_error] = "internal error",
-	[wrap_json_error_out_of_memory] = "out of memory",
-	[wrap_json_error_invalid_character] = "invalid character",
-	[wrap_json_error_too_long] = "too long",
-	[wrap_json_error_too_deep] = "too deep",
-	[wrap_json_error_null_spec] = "spec is NULL",
-	[wrap_json_error_null_key] = "key is NULL",
-	[wrap_json_error_null_string] = "string is NULL",
-	[wrap_json_error_out_of_range] = "array too small",
-	[wrap_json_error_incomplete] = "incomplete container",
-	[wrap_json_error_missfit_type] = "missfit of type",
-	[wrap_json_error_key_not_found] = "key not found"
-};
-
-int wrap_json_get_error_position(int rc)
-{
-	if (rc < 0)
-		rc = -rc;
-	return (rc >> 4) + 1;
-}
-
-int wrap_json_get_error_code(int rc)
-{
-	if (rc < 0)
-		rc = -rc;
-	return rc & 15;
-}
-
-const char *wrap_json_get_error_string(int rc)
-{
-	rc = wrap_json_get_error_code(rc);
-	if (rc >= sizeof pack_errors / sizeof *pack_errors)
-		rc = 0;
-	return pack_errors[rc];
-}
-
-
-
-static inline const char *skip(const char *d)
-{
-	while (*d && strchr(ignore_all, *d))
-		d++;
-	return d;
-}
-
-int wrap_json_vpack(struct json_object **result, const char *desc, va_list args)
-{
-	/* TODO: the case of structs with key being single char should be optimized */
-	int nstr, notnull, nullable, rc;
-	size_t sz, dsz, ssz;
-	char *s;
-	char c;
-	const char *d;
-	char buffer[256];
-	struct { const char *str; size_t sz; } strs[STRCOUNT];
-	struct { struct json_object *cont, *key; const char *acc; char type; } stack[STACKCOUNT], *top;
-	struct json_object *obj;
-
-	ssz = sizeof buffer;
-	s = buffer;
-	top = stack;
-	top->key = NULL;
-	top->cont = NULL;
-	top->acc = pack_accept_any;
-	top->type = 0;
-	d = desc;
-	if (!d)
-		goto null_spec;
-	d = skip(d);
-	for(;;) {
-		c = *d;
-		if (!c)
-			goto truncated;
-		if (!strchr(top->acc, c))
-			goto invalid_character;
-		d = skip(++d);
-		switch(c) {
-		case 's':
-			nullable = 0;
-			notnull = 0;
-			nstr = 0;
-			sz = 0;
-			for (;;) {
-				strs[nstr].str = va_arg(args, const char*);
-				if (strs[nstr].str)
-					notnull = 1;
-				if (*d == '?') {
-					d = skip(++d);
-					nullable = 1;
-				}
-				switch(*d) {
-				case '%': strs[nstr].sz = va_arg(args, size_t); d = skip(++d); break;
-				case '#': strs[nstr].sz = (size_t)va_arg(args, int); d = skip(++d); break;
-				default: strs[nstr].sz = strs[nstr].str ? strlen(strs[nstr].str) : 0; break;
-				}
-				sz += strs[nstr++].sz;
-				if (*d == '?') {
-					d = skip(++d);
-					nullable = 1;
-				}
-				if (*d != '+')
-					break;
-				if (nstr >= STRCOUNT)
-					goto too_long;
-				d = skip(++d);
-			}
-			if (*d == '*')
-				nullable = 1;
-			if (notnull) {
-				if (sz > ssz) {
-					ssz += ssz;
-					if (ssz < sz)
-						ssz = sz;
-					s = alloca(sz);
-				}
-				dsz = sz;
-				while (nstr) {
-					nstr--;
-					dsz -= strs[nstr].sz;
-					memcpy(&s[dsz], strs[nstr].str, strs[nstr].sz);
-				}
-				obj = json_object_new_string_len(s, (int)sz);
-				if (!obj)
-					goto out_of_memory;
-			} else if (nullable)
-				obj = NULL;
-			else
-				goto null_string;
-			break;
-		case 'n':
-			obj = NULL;
-			break;
-		case 'b':
-			obj = json_object_new_boolean(va_arg(args, int));
-			if (!obj)
-				goto out_of_memory;
-			break;
-		case 'i':
-			obj = json_object_new_int(va_arg(args, int));
-			if (!obj)
-				goto out_of_memory;
-			break;
-		case 'I':
-			obj = json_object_new_int64(va_arg(args, int64_t));
-			if (!obj)
-				goto out_of_memory;
-			break;
-		case 'f':
-			obj = json_object_new_double(va_arg(args, double));
-			if (!obj)
-				goto out_of_memory;
-			break;
-		case 'o':
-		case 'O':
-			obj = va_arg(args, struct json_object*);
-			if (*d == '?')
-				d = skip(++d);
-			else if (*d != '*' && !obj)
-				goto null_object;
-			if (c == 'O')
-				json_object_get(obj);
-			break;
-		case '[':
-		case '{':
-			if (++top >= &stack[STACKCOUNT])
-				goto too_deep;
-			top->key = NULL;
-			if (c == '[') {
-				top->type = ']';
-				top->acc = pack_accept_arr;
-				top->cont = json_object_new_array();
-			} else {
-				top->type = '}';
-				top->acc = pack_accept_key;
-				top->cont = json_object_new_object();
-			}
-			if (!top->cont)
-				goto out_of_memory;
-			continue;
-		case '}':
-		case ']':
-			if (c != top->type || top <= stack)
-				goto internal_error;
-			obj = (top--)->cont;
-			if (*d == '*' && !(c == '}' ? json_object_object_length(obj) : json_object_array_length(obj))) {
-				json_object_put(obj);
-				obj = NULL;
-			}
-			break;
-		default:
-			goto internal_error;
-		}
-		switch (top->type) {
-		case 0:
-			if (top != stack)
-				goto internal_error;
-			if (*d)
-				goto invalid_character;
-			*result = obj;
-			return 0;
-		case ']':
-			if (obj || *d != '*')
-				json_object_array_add(top->cont, obj);
-			if (*d == '*')
-				d = skip(++d);
-			break;
-		case '}':
-			if (!obj)
-				goto null_key;
-			top->key = obj;
-			top->acc = pack_accept_any;
-			top->type = ':';
-			break;
-		case ':':
-			if (obj || *d != '*')
-				json_object_object_add(top->cont, json_object_get_string(top->key), obj);
-			if (*d == '*')
-				d = skip(++d);
-			json_object_put(top->key);
-			top->key = NULL;
-			top->acc = pack_accept_key;
-			top->type = '}';
-			break;
-		default:
-			goto internal_error;
-		}
-	}
-
-null_object:
-	rc = wrap_json_error_null_object;
-	goto error;
-truncated:
-	rc = wrap_json_error_truncated;
-	goto error;
-internal_error:
-	rc = wrap_json_error_internal_error;
-	goto error;
-out_of_memory:
-	rc = wrap_json_error_out_of_memory;
-	goto error;
-invalid_character:
-	rc = wrap_json_error_invalid_character;
-	goto error;
-too_long:
-	rc = wrap_json_error_too_long;
-	goto error;
-too_deep:
-	rc = wrap_json_error_too_deep;
-	goto error;
-null_spec:
-	rc = wrap_json_error_null_spec;
-	goto error;
-null_key:
-	rc = wrap_json_error_null_key;
-	goto error;
-null_string:
-	rc = wrap_json_error_null_string;
-	goto error;
-error:
-	do {
-		json_object_put(top->key);
-		json_object_put(top->cont);
-	} while (--top >= stack);
-	*result = NULL;
-	rc = rc | (int)((d - desc) << 4);
-	return -rc;
-}
-
-int wrap_json_pack(struct json_object **result, const char *desc, ...)
-{
-	int rc;
-	va_list args;
-
-	va_start(args, desc);
-	rc = wrap_json_vpack(result, desc, args);
-	va_end(args);
-	return rc;
-}
-
-static int vunpack(struct json_object *object, const char *desc, va_list args, int store)
-{
-	int rc = 0, optionnal, ignore;
-	char c, xacc[2] = { 0, 0 };
-	const char *acc;
-	const char *d, *fit = NULL;
-	const char *key = NULL;
-	const char **ps = NULL;
-	double *pf = NULL;
-	int *pi = NULL;
-	int64_t *pI = NULL;
-	size_t *pz = NULL;
-	struct { struct json_object *parent; const char *acc; int index, count; char type; } stack[STACKCOUNT], *top;
-	struct json_object *obj;
-	struct json_object **po;
-
-	xacc[0] = 0;
-	ignore = 0;
-	top = NULL;
-	acc = unpack_accept_any;
-	d = desc;
-	if (!d)
-		goto null_spec;
-	d = skip(d);
-	obj = object;
-	for(;;) {
-		fit = d;
-		c = *d;
-		if (!c)
-			goto truncated;
-		if (!strchr(acc, c))
-			goto invalid_character;
-		d = skip(++d);
-		switch(c) {
-		case 's':
-			if (xacc[0] == '}') {
-				/* expects a key */
-				key = va_arg(args, const char *);
-				if (!key)
-					goto null_key;
-				if (*d != '?')
-					optionnal = 0;
-				else {
-					optionnal = 1;
-					d = skip(++d);
-				}
-				if (ignore)
-					ignore++;
-				else {
-					if (json_object_object_get_ex(top->parent, key, &obj)) {
-						/* found */
-						top->index++;
-					} else {
-						/* not found */
-						if (!optionnal)
-							goto key_not_found;
-						ignore = 1;
-						obj = NULL;
-					}
-				}
-				xacc[0] = ':';
-				acc = unpack_accept_any;
-				continue;
-			}
-			/* get a string */
-			if (store)
-				ps = va_arg(args, const char **);
-			if (!ignore) {
-				if (!json_object_is_type(obj, json_type_string))
-					goto missfit;
-				if (store && ps)
-					*ps = json_object_get_string(obj);
-			}
-			if (*d == '%') {
-				d = skip(++d);
-				if (store) {
-					pz = va_arg(args, size_t *);
-					if (!ignore && pz)
-						*pz = (size_t)json_object_get_string_len(obj);
-				}
-			}
-			break;
-		case 'n':
-			if (!ignore && !json_object_is_type(obj, json_type_null))
-				goto missfit;
-			break;
-		case 'b':
-			if (store)
-				pi = va_arg(args, int *);
-
-			if (!ignore) {
-				if (!json_object_is_type(obj, json_type_boolean))
-					goto missfit;
-				if (store && pi)
-					*pi = json_object_get_boolean(obj);
-			}
-			break;
-		case 'i':
-			if (store)
-				pi = va_arg(args, int *);
-
-			if (!ignore) {
-				if (!json_object_is_type(obj, json_type_int))
-					goto missfit;
-				if (store && pi)
-					*pi = json_object_get_int(obj);
-			}
-			break;
-		case 'I':
-			if (store)
-				pI = va_arg(args, int64_t *);
-
-			if (!ignore) {
-				if (!json_object_is_type(obj, json_type_int))
-					goto missfit;
-				if (store && pI)
-					*pI = json_object_get_int64(obj);
-			}
-			break;
-		case 'f':
-		case 'F':
-			if (store)
-				pf = va_arg(args, double *);
-
-			if (!ignore) {
-				if (!(json_object_is_type(obj, json_type_double) || (c == 'F' && json_object_is_type(obj, json_type_int))))
-					goto missfit;
-				if (store && pf)
-					*pf = json_object_get_double(obj);
-			}
-			break;
-		case 'o':
-		case 'O':
-			if (store) {
-				po = va_arg(args, struct json_object **);
-				if (!ignore && po) {
-					if (c == 'O')
-						obj = json_object_get(obj);
-					*po = obj;
-				}
-			}
-			break;
-
-		case '[':
-		case '{':
-			if (!top)
-				top = stack;
-			else if (++top  >= &stack[STACKCOUNT])
-				goto too_deep;
-
-			top->acc = acc;
-			top->type = xacc[0];
-			top->index = 0;
-			top->parent = obj;
-			if (ignore)
-				ignore++;
-			if (c == '[') {
-				if (!ignore) {
-					if (!json_object_is_type(obj, json_type_array))
-						goto missfit;
-					top->count = json_object_array_length(obj);
-				}
-				xacc[0] = ']';
-				acc = unpack_accept_arr;
-			} else {
-				if (!ignore) {
-					if (!json_object_is_type(obj, json_type_object))
-						goto missfit;
-					top->count = json_object_object_length(obj);
-				}
-				xacc[0] = '}';
-				acc = unpack_accept_key;
-				continue;
-			}
-			break;
-		case '}':
-		case ']':
-			if (!top || c != xacc[0])
-				goto internal_error;
-			acc = top->acc;
-			xacc[0] = top->type;
-			top = top == stack ? NULL : top - 1;
-			if (ignore)
-				ignore--;
-			break;
-		case '!':
-			if (*d != xacc[0])
-				goto invalid_character;
-			if (!ignore && top->index != top->count)
-				goto incomplete;
-			/*@fallthrough@*/
-		case '*':
-			acc = xacc;
-			continue;
-		default:
-			goto internal_error;
-		}
-		switch (xacc[0]) {
-		case 0:
-			if (top)
-				goto internal_error;
-			if (*d)
-				goto invalid_character;
-			return 0;
-		case ']':
-			if (!ignore) {
-				key = strchr(unpack_accept_arr, *d);
-				if (key && key >= unpack_accept_any) {
-					if (top->index >= top->count)
-						goto out_of_range;
-					obj = json_object_array_get_idx(top->parent, top->index++);
-				}
-			}
-			break;
-		case ':':
-			acc = unpack_accept_key;
-			xacc[0] = '}';
-			if (ignore)
-				ignore--;
-			break;
-		default:
-			goto internal_error;
-		}
-	}
-truncated:
-	rc = wrap_json_error_truncated;
-	goto error;
-internal_error:
-	rc = wrap_json_error_internal_error;
-	goto error;
-invalid_character:
-	rc = wrap_json_error_invalid_character;
-	goto error;
-too_deep:
-	rc = wrap_json_error_too_deep;
-	goto error;
-null_spec:
-	rc = wrap_json_error_null_spec;
-	goto error;
-null_key:
-	rc = wrap_json_error_null_key;
-	goto error;
-out_of_range:
-	rc = wrap_json_error_out_of_range;
-	goto error;
-incomplete:
-	rc = wrap_json_error_incomplete;
-	goto error;
-missfit:
-	rc = wrap_json_error_missfit_type;
-	goto errorfit;
-key_not_found:
-	rc = wrap_json_error_key_not_found;
-	goto error;
-errorfit:
-	d = fit;
-error:
-	rc = rc | (int)((d - desc) << 4);
-	return -rc;
-}
-
-int wrap_json_vcheck(struct json_object *object, const char *desc, va_list args)
-{
-	return vunpack(object, desc, args, 0);
-}
-
-int wrap_json_check(struct json_object *object, const char *desc, ...)
-{
-	int rc;
-	va_list args;
-
-	va_start(args, desc);
-	rc = vunpack(object, desc, args, 0);
-	va_end(args);
-	return rc;
-}
-
-int wrap_json_vmatch(struct json_object *object, const char *desc, va_list args)
-{
-	return !vunpack(object, desc, args, 0);
-}
-
-int wrap_json_match(struct json_object *object, const char *desc, ...)
-{
-	int rc;
-	va_list args;
-
-	va_start(args, desc);
-	rc = vunpack(object, desc, args, 0);
-	va_end(args);
-	return !rc;
-}
-
-int wrap_json_vunpack(struct json_object *object, const char *desc, va_list args)
-{
-	return vunpack(object, desc, args, 1);
-}
-
-int wrap_json_unpack(struct json_object *object, const char *desc, ...)
-{
-	int rc;
-	va_list args;
-
-	va_start(args, desc);
-	rc = vunpack(object, desc, args, 1);
-	va_end(args);
-	return rc;
-}
-
-static void object_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure)
-{
-	struct json_object_iterator it = json_object_iter_begin(object);
-	struct json_object_iterator end = json_object_iter_end(object);
-	while (!json_object_iter_equal(&it, &end)) {
-		callback(closure, json_object_iter_peek_value(&it), json_object_iter_peek_name(&it));
-		json_object_iter_next(&it);
-	}
-}
-
-static void array_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure)
-{
-	int n = json_object_array_length(object);
-	int i = 0;
-	while(i < n)
-		callback(closure, json_object_array_get_idx(object, i++));
-}
-
-void wrap_json_optarray_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure)
-{
-	if (json_object_is_type(object, json_type_array))
-		array_for_all(object, callback, closure);
-	else
-		callback(closure, object);
-}
-
-void wrap_json_array_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure)
-{
-	if (json_object_is_type(object, json_type_array))
-		array_for_all(object, callback, closure);
-}
-
-void wrap_json_object_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure)
-{
-	if (json_object_is_type(object, json_type_object))
-		object_for_all(object, callback, closure);
-}
-
-void wrap_json_optobject_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure)
-{
-	if (json_object_is_type(object, json_type_object))
-		object_for_all(object, callback, closure);
-	else
-		callback(closure, object, NULL);
-}
-
-void wrap_json_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure)
-{
-	if (!object)
-		/* do nothing */;
-	else if (json_object_is_type(object, json_type_object))
-		object_for_all(object, callback, closure);
-	else if (!json_object_is_type(object, json_type_array))
-		callback(closure, object, NULL);
-	else {
-		int n = json_object_array_length(object);
-		int i = 0;
-		while(i < n)
-			callback(closure, json_object_array_get_idx(object, i++), NULL);
-	}
-}
-
-#if defined(WRAP_JSON_TEST)
-#include <stdio.h>
-
-void p(const char *desc, ...)
-{
-	int rc;
-	va_list args;
-	struct json_object *result;
-
-	va_start(args, desc);
-	rc = wrap_json_vpack(&result, desc, args);
-	va_end(args);
-	if (!rc) 
-		printf("  SUCCESS %s\n\n", json_object_to_json_string(result));
-	else
-		printf("  ERROR[char %d err %d] %s\n\n", wrap_json_get_error_position(rc), wrap_json_get_error_code(rc), wrap_json_get_error_string(rc));
-	json_object_put(result);
-}
-
-const char *xs[10];
-int *xi[10];
-int64_t *xI[10];
-double *xf[10];
-struct json_object *xo[10];
-size_t xz[10];
-
-void u(const char *value, const char *desc, ...)
-{
-	unsigned m, k;
-	int rc;
-	va_list args;
-	struct json_object *obj, *o;
-
-	memset(xs, 0, sizeof xs);
-	memset(xi, 0, sizeof xi);
-	memset(xI, 0, sizeof xI);
-	memset(xf, 0, sizeof xf);
-	memset(xo, 0, sizeof xo);
-	memset(xz, 0, sizeof xz);
-	obj = json_tokener_parse(value);
-	va_start(args, desc);
-	rc = wrap_json_vunpack(obj, desc, args);
-	va_end(args);
-	if (rc) 
-		printf("  ERROR[char %d err %d] %s\n\n", wrap_json_get_error_position(rc), wrap_json_get_error_code(rc), wrap_json_get_error_string(rc));
-	else {
-		value = NULL;
-		printf("  SUCCESS");
-		va_start(args, desc);
-		k = m = 0;
-		while(*desc) {
-			switch(*desc) {
-			case '{': m = (m << 1) | 1; k = 1; break;
-			case '}': m = m >> 1; k = m&1; break;
-			case '[': m = m << 1; k = 0; break;
-			case ']': m = m >> 1; k = m&1; break;
-			case 's': printf(" s:%s", k ? va_arg(args, const char*) : *(va_arg(args, const char**)?:&value)); k ^= m&1; break;
-			case '%': printf(" %%:%zu", *va_arg(args, size_t*)); k = m&1; break;
-			case 'n': printf(" n"); k = m&1; break;
-			case 'b': printf(" b:%d", *va_arg(args, int*)); k = m&1; break;
-			case 'i': printf(" i:%d", *va_arg(args, int*)); k = m&1; break;
-			case 'I': printf(" I:%lld", *va_arg(args, int64_t*)); k = m&1; break;
-			case 'f': printf(" f:%f", *va_arg(args, double*)); k = m&1; break;
-			case 'F': printf(" F:%f", *va_arg(args, double*)); k = m&1; break;
-			case 'o': printf(" o:%s", json_object_to_json_string(*va_arg(args, struct json_object**))); k = m&1; break;
-			case 'O': o = *va_arg(args, struct json_object**); printf(" O:%s", json_object_to_json_string(o)); json_object_put(o); k = m&1; break;
-			default: break;
-			}
-			desc++;
-		}
-		va_end(args);
-		printf("\n\n");
-	}
-	json_object_put(obj);
-}
-
-#define P(...) do{ printf("pack(%s)\n",#__VA_ARGS__); p(__VA_ARGS__); } while(0)
-#define U(...) do{ printf("unpack(%s)\n",#__VA_ARGS__); u(__VA_ARGS__); } while(0)
-
-int main()
-{
-	char buffer[4] = {'t', 'e', 's', 't'};
-
-	P("n");
-	P("b", 1);
-	P("b", 0);
-	P("i", 1);
-	P("I", (uint64_t)0x123456789abcdef);
-	P("f", 3.14);
-	P("s", "test");
-	P("s?", "test");
-	P("s?", NULL);
-	P("s#", "test asdf", 4);
-	P("s%", "test asdf", (size_t)4);
-	P("s#", buffer, 4);
-	P("s%", buffer, (size_t)4);
-	P("s++", "te", "st", "ing");
-	P("s#+#+", "test", 1, "test", 2, "test");
-	P("s%+%+", "test", (size_t)1, "test", (size_t)2, "test");
-	P("{}", 1.0);
-	P("[]", 1.0);
-	P("o", json_object_new_int(1));
-	P("o?", json_object_new_int(1));
-	P("o?", NULL);
-	P("O", json_object_new_int(1));
-	P("O?", json_object_new_int(1));
-	P("O?", NULL);
-	P("{s:[]}", "foo");
-	P("{s+#+: []}", "foo", "barbar", 3, "baz");
-	P("{s:s,s:o,s:O}", "a", NULL, "b", NULL, "c", NULL);
-	P("{s:**}", "a", NULL);
-	P("{s:s*,s:o*,s:O*}", "a", NULL, "b", NULL, "c", NULL);
-	P("[i,i,i]", 0, 1, 2);
-	P("[s,o,O]", NULL, NULL, NULL);
-	P("[**]", NULL);
-	P("[s*,o*,O*]", NULL, NULL, NULL);
-	P(" s ", "test");
-	P("[ ]");
-	P("[ i , i,  i ] ", 1, 2, 3);
-	P("{\n\n1");
-	P("[}");
-	P("{]");
-	P("[");
-	P("{");
-	P("[i]a", 42);
-	P("ia", 42);
-	P("s", NULL);
-	P("+", NULL);
-	P(NULL);
-	P("{s:i}", NULL, 1);
-	P("{ {}: s }", "foo");
-	P("{ s: {},  s:[ii{} }", "foo", "bar", 12, 13);
-	P("[[[[[   [[[[[  [[[[ }]]]] ]]]] ]]]]]");
-
-	U("true", "b", &xi[0]);
-	U("false", "b", &xi[0]);
-	U("null", "n");
-	U("42", "i", &xi[0]);
-	U("123456789", "I", &xI[0]);
-	U("3.14", "f", &xf[0]);
-	U("12345", "F", &xf[0]);
-	U("3.14", "F", &xf[0]);
-	U("\"foo\"", "s", &xs[0]);
-	U("\"foo\"", "s%", &xs[0], &xz[0]);
-	U("{}", "{}");
-	U("[]", "[]");
-	U("{}", "o", &xo[0]);
-	U("{}", "O", &xo[0]);
-	U("{\"foo\":42}", "{si}", "foo", &xi[0]);
-	U("[1,2,3]", "[i,i,i]", &xi[0], &xi[1], &xi[2]);
-	U("{\"a\":1,\"b\":2,\"c\":3}", "{s:i, s:i, s:i}", "a", &xi[0], "b", &xi[1], "c", &xi[2]);
-	U("42", "z");
-	U("null", "[i]");
-	U("[]", "[}");
-	U("{}", "{]");
-	U("[]", "[");
-	U("{}", "{");
-	U("[42]", "[i]a", &xi[0]);
-	U("42", "ia", &xi[0]);
-	U("[]", NULL);
-	U("\"foo\"", "s", NULL);
-	U("42", "s", NULL);
-	U("42", "n");
-	U("42", "b", NULL);
-	U("42", "f", NULL);
-	U("42", "[i]", NULL);
-	U("42", "{si}", "foo", NULL);
-	U("\"foo\"", "n");
-	U("\"foo\"", "b", NULL);
-	U("\"foo\"", "i", NULL);
-	U("\"foo\"", "I", NULL);
-	U("\"foo\"", "f", NULL);
-	U("\"foo\"", "F", NULL);
-	U("true", "s", NULL);
-	U("true", "n");
-	U("true", "i", NULL);
-	U("true", "I", NULL);
-	U("true", "f", NULL);
-	U("true", "F", NULL);
-	U("[42]", "[ii]", &xi[0], &xi[1]);
-	U("{\"foo\":42}", "{si}", NULL, &xi[0]);
-	U("{\"foo\":42}", "{si}", "baz", &xi[0]);
-	U("[1,2,3]", "[iii!]", &xi[0], &xi[1], &xi[2]);
-	U("[1,2,3]", "[ii!]", &xi[0], &xi[1]);
-	U("[1,2,3]", "[ii]", &xi[0], &xi[1]);
-	U("[1,2,3]", "[ii*]", &xi[0], &xi[1]);
-	U("{\"foo\":42,\"baz\":45}", "{sisi}", "baz", &xi[0], "foo", &xi[1]);
-	U("{\"foo\":42,\"baz\":45}", "{sisi*}", "baz", &xi[0], "foo", &xi[1]);
-	U("{\"foo\":42,\"baz\":45}", "{sisi!}", "baz", &xi[0], "foo", &xi[1]);
-	U("{\"foo\":42,\"baz\":45}", "{si}", "baz", &xi[0], "foo", &xi[1]);
-	U("{\"foo\":42,\"baz\":45}", "{si*}", "baz", &xi[0], "foo", &xi[1]);
-	U("{\"foo\":42,\"baz\":45}", "{si!}", "baz", &xi[0], "foo", &xi[1]);
-	U("[1,{\"foo\":2,\"bar\":null},[3,4]]", "[i{sisn}[ii]]", &xi[0], "foo", &xi[1], "bar", &xi[2], &xi[3]);
-	U("[1,2,3]", "[ii!i]", &xi[0], &xi[1], &xi[2]);
-	U("[1,2,3]", "[ii*i]", &xi[0], &xi[1], &xi[2]);
-	U("{\"foo\":1,\"bar\":2}", "{si!si}", "foo", &xi[1], "bar", &xi[2]);
-	U("{\"foo\":1,\"bar\":2}", "{si*si}", "foo", &xi[1], "bar", &xi[2]);
-	U("{\"foo\":{\"baz\":null,\"bar\":null}}", "{s{sn!}}", "foo", "bar");
-	U("[[1,2,3]]", "[[ii!]]", &xi[0], &xi[1]);
-	U("{}", "{s?i}", "foo", &xi[0]);
-	U("{\"foo\":1}", "{s?i}", "foo", &xi[0]);
-	U("{}", "{s?[ii]s?{s{si!}}}", "foo", &xi[0], &xi[1], "bar", "baz", "quux", &xi[2]);
-	U("{\"foo\":[1,2]}", "{s?[ii]s?{s{si!}}}", "foo", &xi[0], &xi[1], "bar", "baz", "quux", &xi[2]);
-	U("{\"bar\":{\"baz\":{\"quux\":15}}}", "{s?[ii]s?{s{si!}}}", "foo", &xi[0], &xi[1], "bar", "baz", "quux", &xi[2]);
-	U("{\"foo\":{\"bar\":4}}", "{s?{s?i}}", "foo", "bar", &xi[0]);
-	U("{\"foo\":{}}", "{s?{s?i}}", "foo", "bar", &xi[0]);
-	U("{}", "{s?{s?i}}", "foo", "bar", &xi[0]);
-	U("{\"foo\":42,\"baz\":45}", "{s?isi!}", "baz", &xi[0], "foo", &xi[1]);
-	U("{\"foo\":42}", "{s?isi!}", "baz", &xi[0], "foo", &xi[1]);
-	return 0;
-}
-
-#endif
-
-#if 0
-
-
-    /* Unpack the same item twice */
-    j = json_pack("{s:s, s:i, s:b}", "foo", "bar", "baz", 42, "quux", 1);
-    if(!json_unpack_ex(j, &error, 0, "{s:s,s:s!}", "foo", &s, "foo", &s))
-        fail("json_unpack object with strict validation failed");
-    {
-        const char *possible_errors[] = {
-            "2 object item(s) left unpacked: baz, quux",
-            "2 object item(s) left unpacked: quux, baz"
-        };
-        check_errors(possible_errors, 2, "<validation>", 1, 10, 10);
-    }
-    json_decref(j);
-
-#endif
diff --git a/Audio-Common/wrap-json.h b/Audio-Common/wrap-json.h
deleted file mode 100644
index cb2d0bf..0000000
--- a/Audio-Common/wrap-json.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- Copyright (C) 2016, 2017 "IoT.bzh"
-
- author: José Bollo <jose.bollo@iot.bzh>
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
-*/
-
-#pragma once
-
-#include <stdarg.h>
-#include <json-c/json.h>
-
-extern int wrap_json_get_error_position(int rc);
-extern int wrap_json_get_error_code(int rc);
-extern const char *wrap_json_get_error_string(int rc);
-
-extern int wrap_json_vpack(struct json_object **result, const char *desc, va_list args);
-extern int wrap_json_pack(struct json_object **result, const char *desc, ...);
-
-extern int wrap_json_vunpack(struct json_object *object, const char *desc, va_list args);
-extern int wrap_json_unpack(struct json_object *object, const char *desc, ...);
-extern int wrap_json_vcheck(struct json_object *object, const char *desc, va_list args);
-extern int wrap_json_check(struct json_object *object, const char *desc, ...);
-extern int wrap_json_vmatch(struct json_object *object, const char *desc, va_list args);
-extern int wrap_json_match(struct json_object *object, const char *desc, ...);
-
-extern void wrap_json_optarray_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure);
-extern void wrap_json_array_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure);
-
-extern void wrap_json_optarray_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure);
-extern void wrap_json_array_for_all(struct json_object *object, void (*callback)(void*,struct json_object*), void *closure);
-extern void wrap_json_object_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure);
-extern void wrap_json_optobject_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure);
-extern void wrap_json_for_all(struct json_object *object, void (*callback)(void*,struct json_object*,const char*), void *closure);
-
diff --git a/Audio-Common/wrap-json.md b/Audio-Common/wrap-json.md
deleted file mode 100644
index 92940f1..0000000
--- a/Audio-Common/wrap-json.md
+++ /dev/null
@@ -1,305 +0,0 @@
-WRAP-JSON facility
-==================
-
-The facility wrap-json is based on the pack/unpack API on the
-libray jansson. The two chapters below are copied from the
-documentation of jansson library copyrighted by Petri Lehtinen
-(see at end).
-
-Building Values
----------------
-
-This section describes functions that help to create, or *pack*, complex
-JSON values, especially nested objects and arrays. Value building is
-based on a *format string* that is used to tell the functions about the
-expected arguments.
-
-For example, the format string `"i"` specifies a single integer value,
-while the format string `"[ssb]"` or the equivalent `"[s, s, b]"`
-specifies an array value with two strings and a boolean as its items:
-
-    /* Create the JSON integer 42 */
-    wrap_json_pack(&result, "i", 42);
-
-    /* Create the JSON array ["foo", "bar", true] */
-    wrap_json_pack(&result, "[ssb]", "foo", "bar", 1);
-
-Here's the full list of format specifiers. The type in parentheses
-denotes the resulting JSON type, and the type in brackets (if any)
-denotes the C type that is expected as the corresponding argument or
-arguments.
-
-`s` (string) \[const char \*\]
-
-:   Convert a null terminated UTF-8 string to a JSON string.
-
-`s?` (string) \[const char \*\]
-
-:   Like `s`, but if the argument is *NULL*, output a JSON null value.
-
-`s*` (string) \[const char \*\]
-
-:   Like `s`, but if the argument is *NULL*, do not output any value.
-    This format can only be used inside an object or an array. If used
-    inside an object, the corresponding key is additionally suppressed
-    when the value is omitted. See below for an example.
-
-`s#` (string) \[const char \*, int\]
-
-:   Convert a UTF-8 buffer of a given length to a JSON string.
-
-`s%` (string) \[const char \*, size\_t\]
-
-:   Like `s#` but the length argument is of type size\_t.
-
-`+` \[const char \*\]
-
-:   Like `s`, but concatenate to the previous string. Only valid after
-    `s`, `s#`, `+` or `+#`.
-
-`+#` \[const char \*, int\]
-
-:   Like `s#`, but concatenate to the previous string. Only valid after
-    `s`, `s#`, `+` or `+#`.
-
-`+%` (string) \[const char \*, size\_t\]
-
-:   Like `+#` but the length argument is of type size\_t.
-
-`n` (null)
-
-:   Output a JSON null value. No argument is consumed.
-
-`b` (boolean) \[int\]
-
-:   Convert a C int to JSON boolean value. Zero is converted to `false`
-    and non-zero to `true`.
-
-`i` (integer) \[int\]
-
-:   Convert a C int to JSON integer.
-
-`I` (integer) \[json\_int\_t\]
-
-:   Convert a C json\_int\_t to JSON integer.
-
-`f` (real) \[double\]
-
-:   Convert a C double to JSON real.
-
-`o` (any value) \[json\_t \*\]
-
-:   Output any given JSON value as-is. If the value is added to an array
-    or object, the reference to the value passed to `o` is stolen by the
-    container.
-
-`O` (any value) \[json\_t \*\]
-
-:   Like `o`, but the argument's reference count is incremented. This is
-    useful if you pack into an array or object and want to keep the
-    reference for the JSON value consumed by `O` to yourself.
-
-`o?`, `O?` (any value) \[json\_t \*\]
-
-:   Like `o` and `O`, respectively, but if the argument is *NULL*,
-    output a JSON null value.
-
-`o*`, `O*` (any value) \[json\_t \*\]
-
-:   Like `o` and `O`, respectively, but if the argument is *NULL*, do
-    not output any value. This format can only be used inside an object
-    or an array. If used inside an object, the corresponding key is
-    additionally suppressed. See below for an example.
-
-`[fmt]` (array)
-
-:   Build an array with contents from the inner format string. `fmt` may
-    contain objects and arrays, i.e. recursive value building is
-    supported.
-
-`{fmt}` (object)
-
-:   Build an object with contents from the inner format string `fmt`.
-    The first, third, etc. format specifier represent a key, and must be
-    a string (see `s`, `s#`, `+` and `+#` above), as object keys are
-    always strings. The second, fourth, etc. format specifier represent
-    a value. Any value may be an object or array, i.e. recursive value
-    building is supported.
-
-Whitespace, `:` and `,` are ignored.
-
-More examples:
-
-    /* Build an empty JSON object */
-    wrap_json_pack(&result, "{}");
-
-    /* Build the JSON object {"foo": 42, "bar": 7} */
-    wrap_json_pack(&result, "{sisi}", "foo", 42, "bar", 7);
-
-    /* Like above, ':', ',' and whitespace are ignored */
-    wrap_json_pack(&result, "{s:i, s:i}", "foo", 42, "bar", 7);
-
-    /* Build the JSON array [[1, 2], {"cool": true}] */
-    wrap_json_pack(&result, "[[i,i],{s:b}]", 1, 2, "cool", 1);
-
-    /* Build a string from a non-null terminated buffer */
-    char buffer[4] = {'t', 'e', 's', 't'};
-    wrap_json_pack(&result, "s#", buffer, 4);
-
-    /* Concatenate strings together to build the JSON string "foobarbaz" */
-    wrap_json_pack(&result, "s++", "foo", "bar", "baz");
-
-    /* Create an empty object or array when optional members are missing */
-    wrap_json_pack(&result, "{s:s*,s:o*,s:O*}", "foo", NULL, "bar", NULL, "baz", NULL);
-    wrap_json_pack(&result, "[s*,o*,O*]", NULL, NULL, NULL);
-
-Parsing and Validating Values
------------------------------
-
-This section describes functions that help to validate complex values
-and extract, or *unpack*, data from them. Like building values
-&lt;apiref-pack&gt;, this is also based on format strings.
-
-While a JSON value is unpacked, the type specified in the format string
-is checked to match that of the JSON value. This is the validation part
-of the process. In addition to this, the unpacking functions can also
-check that all items of arrays and objects are unpacked. This check be
-enabled with the format specifier `!` or by using the flag
-`JSON_STRICT`. See below for details.
-
-Here's the full list of format specifiers. The type in parentheses
-denotes the JSON type, and the type in brackets (if any) denotes the C
-type whose address should be passed.
-
-`s` (string) \[const char \*\]
-
-:   Convert a JSON string to a pointer to a null terminated UTF-8
-    string. The resulting string is extracted by using
-    json\_string\_value() internally, so it exists as long as there are
-    still references to the corresponding JSON string.
-
-`s%` (string) \[const char \*, size\_t \*\]
-
-:   Convert a JSON string to a pointer to a null terminated UTF-8 string
-    and its length.
-
-`n` (null)
-
-:   Expect a JSON null value. Nothing is extracted.
-
-`b` (boolean) \[int\]
-
-:   Convert a JSON boolean value to a C int, so that `true` is converted
-    to 1 and `false` to 0.
-
-`i` (integer) \[int\]
-
-:   Convert a JSON integer to C int.
-
-`I` (integer) \[json\_int\_t\]
-
-:   Convert a JSON integer to C json\_int\_t.
-
-`f` (real) \[double\]
-
-:   Convert a JSON real to C double.
-
-`F` (integer or real) \[double\]
-
-:   Convert a JSON number (integer or real) to C double.
-
-`o` (any value) \[json\_t \*\]
-
-:   Store a JSON value with no conversion to a json\_t pointer.
-
-`O` (any value) \[json\_t \*\]
-
-:   Like `O`, but the JSON value's reference count is incremented.
-
-`[fmt]` (array)
-
-:   Convert each item in the JSON array according to the inner format
-    string. `fmt` may contain objects and arrays, i.e. recursive value
-    extraction is supported.
-
-`{fmt}` (object)
-
-:   Convert each item in the JSON object according to the inner format
-    string `fmt`. The first, third, etc. format specifier represent a
-    key, and must be `s`. The corresponding argument to unpack functions
-    is read as the object key. The second fourth, etc. format specifier
-    represent a value and is written to the address given as the
-    corresponding argument. **Note** that every other argument is read
-    from and every other is written to.
-
-    `fmt` may contain objects and arrays as values, i.e. recursive value
-    extraction is supported.
-
-`!`
-
-:   This special format specifier is used to enable the check that all
-    object and array items are accessed, on a per-value basis. It must
-    appear inside an array or object as the last format specifier before
-    the closing bracket or brace.
-
-`*`
-
-:   This special format specifier is the opposite of `!`. This is the default.
-    It must appear inside an array or object as the last format specifier
-    before the closing bracket or brace.
-
-Whitespace, `:` and `,` are ignored.
-
-Examples:
-
-    /* root is the JSON integer 42 */
-    int myint;
-    wrap_json_unpack(root, "i", &myint);
-    assert(myint == 42);
-
-    /* root is the JSON object {"foo": "bar", "quux": true} */
-    const char *str;
-    int boolean;
-    wrap_json_unpack(root, "{s:s, s:b}", "foo", &str, "quux", &boolean);
-    assert(strcmp(str, "bar") == 0 && boolean == 1);
-
-    /* root is the JSON array [[1, 2], {"baz": null} */
-    wrap_json_check(root, "[[i,i], {s:n}]", "baz");
-    /* returns 0 for validation success, nothing is extracted */
-
-    /* root is the JSON array [1, 2, 3, 4, 5] */
-    int myint1, myint2;
-    wrap_json_unpack(root, "[ii!]", &myint1, &myint2);
-    /* returns -1 for failed validation */
-
-    /* root is an empty JSON object */
-    int myint = 0, myint2 = 0, myint3 = 0;
-    wrap_json_unpack(root, "{s?i, s?[ii]}",
-                "foo", &myint1,
-                "bar", &myint2, &myint3);
-    /* myint1, myint2 or myint3 is no touched as "foo" and "bar" don't exist */
-
-
-Copyright
----------
-
-Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-