Add MLIB and MLIB wrapper library

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "components/blackmagic/blackmagic-fw"]
 	path = components/blackmagic/blackmagic-fw
 	url = https://github.com/flipperdevices/blackmagic.git
+[submodule "components/mlib/mlib"]
+	path = components/mlib/mlib
+	url = https://github.com/P-p-H-d/mlib.git

components/mlib/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "m_string.c"
+                    PRIV_INCLUDE_DIRS "mlib"
+                    INCLUDE_DIRS ".")

components/mlib/m_string.c

@@ -0,0 +1,44 @@
+#include "mlib\m-string.h"
+#include "m_string.h"
+
+struct mstring_t {
+    string_t str;
+};
+
+mstring_t* mstring_alloc() {
+    mstring_t* mstr = malloc(sizeof(mstring_t));
+    string_init(mstr->str);
+    return mstr;
+}
+
+mstring_t* mstring_alloc_set(const char* text) {
+    mstring_t* mstr = malloc(sizeof(mstring_t));
+    string_init(mstr->str);
+    string_set_str(mstr->str, text);
+    return mstr;
+}
+
+void mstring_free(mstring_t* mstr) {
+    string_clear(mstr->str);
+    free(mstr);
+}
+
+void mstring_set(mstring_t* mstr, const char* text) {
+    string_set_str(mstr->str, text);
+}
+
+int mstring_printf(mstring_t* mstr, const char format[], ...) {
+    va_list args;
+    va_start(args, format);
+    int ret = string_vprintf(mstr->str, format, args);
+    va_end(args);
+    return ret;
+}
+
+const char* mstring_get_cstr(const mstring_t* mstr) {
+    return string_get_cstr(mstr->str);
+}
+
+char mstring_get_char(const mstring_t* mstr, size_t index) {
+    return string_get_char(mstr->str, index);
+}

components/mlib/m_string.h

@@ -0,0 +1,59 @@
+/**
+ * @file m_string.h
+ * 
+ * M*Lib string wrapper, to prevent inline code pollution
+ * 
+ */
+#pragma once
+
+typedef struct mstring_t mstring_t;
+
+/**
+ * Allocate string
+ * @return mstring_t* 
+ */
+mstring_t* mstring_alloc();
+
+/**
+ * Allocate string and set value
+ * @param text 
+ * @return mstring_t* 
+ */
+mstring_t* mstring_alloc_set(const char* text);
+
+/**
+ * Free string
+ * @param mstr 
+ */
+void mstring_free(mstring_t* mstr);
+
+/**
+ * Set string value
+ * @param mstr 
+ * @param text 
+ */
+void mstring_set(mstring_t* mstr, const char* text);
+
+/**
+ * Printf string value
+ * @param mstr 
+ * @param format 
+ * @param ... 
+ * @return int 
+ */
+int mstring_printf(mstring_t* mstr, const char format[], ...);
+
+/**
+ * Get constant pointer to string value
+ * @param mstr 
+ * @return const char* 
+ */
+const char* mstring_get_cstr(const mstring_t* mstr);
+
+/**
+ * Get char at index
+ * @param mstr 
+ * @param index 
+ * @return char 
+ */
+char mstring_get_char(const mstring_t* mstr, size_t index);

components/mlib/mlib

@@ -0,0 +1 @@
+Subproject commit 9549e82b048e93167529319ca1d169f3db1d2572