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dani007200964dani007200964
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Project init.
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‎.vscode/launch.json‎

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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "gcc.exe - Build and debug active file",
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"type": "cppdbg",
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"request": "launch",
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"program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
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"args": [],
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"stopAtEntry": false,
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"cwd": "C:\\MinGW\\bin",
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"environment": [],
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"externalConsole": false,
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"MIMode": "gdb",
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"miDebuggerPath": "C:\\MinGW\\bin\\gdb.exe",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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],
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"preLaunchTask": "C/C++: gcc.exe build active file"
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}
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]
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}

‎.vscode/tasks.json‎

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{
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"tasks": [
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{
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"type": "cppbuild",
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"label": "C/C++: gcc.exe build active file",
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"command": "C:\\MinGW\\bin\\gcc.exe",
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"args": [
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"-g",
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"${file}",
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"-o",
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"${fileDirname}\\${fileBasenameNoExtension}.exe"
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],
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"options": {
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"cwd": "C:\\MinGW\\bin"
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},
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"problemMatcher": [
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"$gcc"
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],
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"group": {
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"kind": "build",
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"isDefault": true
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},
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"detail": "Task generated by Debugger."
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}
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],
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"version": "2.0.0"
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}

‎Makefile‎

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########################################################################
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####################### Makefile Template ##############################
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########################################################################
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# Compiler settings - Can be customized.
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CC = gcc
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CXXFLAGS = -std=c11 -Wall
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LDFLAGS =
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# Makefile settings - Can be customized.
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APPNAME = myapp
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EXT = .c
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SRCDIR = src
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OBJDIR = obj
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############## Do not change anything from here downwards! #############
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SRC = $(wildcard $(SRCDIR)/*$(EXT))
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OBJ = $(SRC:$(SRCDIR)/%$(EXT)=$(OBJDIR)/%.o)
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DEP = $(OBJ:$(OBJDIR)/%.o=%.d)
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# UNIX-based OS variables & settings
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RM = rm
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DELOBJ = $(OBJ)
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# Windows OS variables & settings
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DEL = del
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EXE = .exe
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WDELOBJ = $(SRC:$(SRCDIR)/%$(EXT)=$(OBJDIR)\\%.o)
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########################################################################
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####################### Targets beginning here #########################
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########################################################################
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all: $(APPNAME)
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# Builds the app
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$(APPNAME): $(OBJ)
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$(CC) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)
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# Creates the dependecy rules
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%.d: $(SRCDIR)/%$(EXT)
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@$(CPP) $(CFLAGS) $< -MM -MT $(@:%.d=$(OBJDIR)/%.o) >$@
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# Includes all .h files
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-include $(DEP)
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# Building rule for .o files and its .c/.cpp in combination with all .h
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$(OBJDIR)/%.o: $(SRCDIR)/%$(EXT)
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$(CC) $(CXXFLAGS) -o $@ -c $<
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################### Cleaning rules for Unix-based OS ###################
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# Cleans complete project
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.PHONY: clean
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clean:
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$(RM) $(DELOBJ) $(DEP) $(APPNAME)
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# Cleans only all files with the extension .d
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.PHONY: cleandep
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cleandep:
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$(RM) $(DEP)
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#################### Cleaning rules for Windows OS #####################
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# Cleans complete project
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.PHONY: cleanw
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cleanw:
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$(DEL) $(WDELOBJ) $(DEP) $(APPNAME)$(EXE)
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# Cleans only all files with the extension .d
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.PHONY: cleandepw
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cleandepw:
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$(DEL) $(DEP)

‎WS-code.code-workspace‎

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{
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"folders": [
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{
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"path": "."
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}
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],
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"settings": {}
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}

‎inc/interpreter.h‎

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// Include Guard
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#ifndef INTERPRETER_H_
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#define INTERPRETER_H_
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#define NUM_OF_API_FUNCS 7
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// structure for instruction data
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typedef struct API_t{
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struct API_t *left; // Left element on a binatry tree branch
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struct API_t *right; // Right element on a binary tree branch
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const char **name; // Name of the instruction
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const char **desc; // Description of the command
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void(*func)(char*,char*); // Function pointer to the command function
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}API_t;
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void add_interpreter_instruction(const char **name, const char **desc, void(*func)(char*,char*));
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void init_interpreter(void);
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void print_apis_in_order(API_t *head);
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void teszt(void);
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#endif

‎src/interpreter.c‎

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#include "../inc/interpreter.h"
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API_t API_tree[NUM_OF_API_FUNCS];
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uint32_t API_cntr;
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//macro to add new instruction to the instructions binary tree
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#define create_instruction_data(name, desc) \
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const char *name##_API_NAME = (const char *)#name; \
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const char *name##_API_DESC = (const char *)desc;
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// ***** Create instruction data for the API *****
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create_instruction_data(cica, "cica fuggveny leirasa, jeeee :)");
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create_instruction_data(kutya, "kutya fuggveny leirasa, joooo :)");
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create_instruction_data(tehen, "tehen fuggveny leirasa, jii :)");
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create_instruction_data(majom, "majom fuggveny leirasa, jaaaa :)");
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create_instruction_data(eger, "eger fuggveny leirasa, gyoooo :)");
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create_instruction_data(okor, "eger fuggveny leirasa, gyaaa :)");
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create_instruction_data(csiga, "eger fuggveny leirasa, dikk :)");
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#define add_instruction(name, func) add_interpreter_instruction(&name##_API_NAME, &name##_API_DESC, func);
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void cica_func(char *args, char *response)
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{
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printf("Cica!\r\n");
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printf("Args: %s\r\n", args);
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}
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void kutya_func(char *args, char *response)
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{
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printf("Kutya!\r\n");
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printf("Args: %s\r\n", args);
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}
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void init_interpreter(void)
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{
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// Initialize the 'API_cntr' variable as zero before adding new items
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API_cntr = 0;
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// ***** Create the binary tree of the instructions *****
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add_instruction(majom, kutya_func);
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add_instruction(tehen, kutya_func);
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add_instruction(cica, cica_func);
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add_instruction(kutya, kutya_func);
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add_instruction(eger, kutya_func);
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add_instruction(okor, kutya_func);
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add_instruction(csiga, kutya_func);
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print_apis_in_order( &API_tree[0] );
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if( API_cntr != NUM_OF_API_FUNCS ){
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printf("**ERROR**\tAPI function number mismatch!!!\r\n");
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}
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}
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void add_interpreter_instruction(const char **name, const char **desc, void (*func)(char *, char *))
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{
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API_t *next;
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API_t *prev;
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int32_t comp_res;
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// if the API_cntr value is greater or equal than the defined maximum
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// API command number, there is a problem in the code!
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if (API_cntr >= NUM_OF_API_FUNCS)
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{
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printf("**ERROR**\tToo many instruction, memory is full!\r\n");
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return;
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}
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// print out the new command name
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//printf("%s\r\n", (char *)*name);
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// if it is the first command we hacve to create the root of the
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// binary tree
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if (API_cntr == 0)
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{
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API_tree[0].name = (const char**)name; // address of the name string( char** type )
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API_tree[0].desc = (const char**)desc; // address of the description string( char** type )
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API_tree[0].func = func; // function pointer to the actual function
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API_tree[0].left = NULL; // because it is the first element of the tree,
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API_tree[0].right = NULL; // left and right branches has to be NULL
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}
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// if it is ot the first command we have to find it's place in the tree
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else
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{
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prev = &API_tree[0]; // get the address of the root element
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comp_res = strcmp( (char*)*(prev->name), (char*)*name ); // compare the names and save the result to 'comp_res'
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// compare( ABC order ) the root element name and the new element name
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(comp_res > 0) ? (next = (prev->left)) : ( next = (prev->right));
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// find the place in the tree
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while (next != 0)
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{
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prev = next;
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comp_res = strcmp( *(prev->name), *name);
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(comp_res > 0) ? (next = (prev->left)) : (next = (prev->right));
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}
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// link the new item on the previous branch
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( comp_res > 0 ) ? ( ( prev->left ) = &API_tree[API_cntr] ) : ( ( prev->right ) = &API_tree[API_cntr] );
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API_tree[API_cntr].name = (const char**)name; // address of the name string( char** type )
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API_tree[API_cntr].desc = (const char**)desc; // address of the description string( char** type )
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API_tree[API_cntr].func = func; // function pointer to the actual function
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API_tree[API_cntr].left = NULL; // close the branch
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API_tree[API_cntr].right = NULL;
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}
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API_cntr++;
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}
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void print_apis_in_order(API_t *head){
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if( head==0 ){
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return;
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}
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print_apis_in_order( head -> left );
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printf( "%s\r\n", *(head->name) );
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print_apis_in_order( head -> right );
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}

‎src/main.c‎

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#include <stdio.h>
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#include "../inc/interpreter.h"
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int main(){
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printf("Program START...\r\n");
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init_interpreter();
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return 0;
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}

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