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+//
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+// Created by Nahom Belay on 31/03/2021.
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+//
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+
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+#include "table_symboles.h"
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+#include <stdio.h>
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+#include <string.h>
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+
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+
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+void initialise_table(Table_Symboles * table){
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+ table->indexAvailableBottom = TABLE_SIZE - 1;
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+ table->indexAvailableTop = 0;
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+}
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+
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+int variable_exists(Table_Symboles * table, char * varName){
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+ for (int i = 0; i < table->indexAvailableTop; i++){
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+ if (strcmp(varName, table->array[i].Variable_Name) == 0){
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+ return -1;
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+ }
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+ }
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+
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+ for (int i = (table->indexAvailableBottom + 1); i < TABLE_SIZE; i++){
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+ if (strcmp(varName, table->array[i].Variable_Name) == 0){
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+ return -1;
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+ }
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+ }
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+ return 0;
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+}
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+int add_symbole_top(Table_Symboles * table, char * varName, enum Symbole_Type type, enum Initialised_Variable init){
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+ Symbole symbole;
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+ symbole.Variable_Name = varName;
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+ symbole.addr = table->indexAvailableTop;
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+ symbole.init = init;
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+ symbole.type = type;
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+ if (table->indexAvailableTop >= table->indexAvailableBottom){
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+ return -1;
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+ } else if (variable_exists(table, varName) == -1){
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+ return -2;
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+ } else {
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+ table->array[table->indexAvailableTop] = symbole;
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+ table->indexAvailableTop++;
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+ }
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+ return 0;
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+}
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+
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+int add_symbole_bottom(Table_Symboles * table, char * varName, enum Symbole_Type type, enum Initialised_Variable init){
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+ Symbole symbole;
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+ symbole.Variable_Name = varName;
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+ symbole.addr = table->indexAvailableBottom;
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+ symbole.init = init;
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+ symbole.type = type;
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+ if (table->indexAvailableTop >= table->indexAvailableBottom){
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+ return -1;
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+ } else if (variable_exists(table, varName) == 1){
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+ return -2;
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+ } else {
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+ table->array[table->indexAvailableBottom] = symbole;
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+ table->indexAvailableBottom--;
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+ }
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+ return 0;
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+}
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+
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+void print_symbole(Symbole * symbole){
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+ char * var = symbole->Variable_Name;
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+ int addr = symbole->addr;
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+ int type = symbole->type;
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+ char * typeStr;
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+ if (type == 0){
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+ typeStr = "INT";
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+ } else{
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+ typeStr = "CONST_INT";
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+ }
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+ int init = symbole->init;
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+ char * initStr;
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+ if (type == 0){
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+ initStr = "INITIALISED";
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+ } else{
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+ initStr = "NOT_INITIALISED";
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+ }
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+ printf("%-20s\t\t %-12s\t\t %-12d\t %-12s\n", var, typeStr, addr, initStr);
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+}
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+
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+void print_table(Table_Symboles * table){
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+ printf("%-20s\t\t %-12s\t\t %-12s\t %-12s\n", "Variable Name", "Type", "Address", "Initialised");
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+ int indexTop = table->indexAvailableTop;
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+ int indexBottom = table->indexAvailableBottom;
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+ Symbole symbole;
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+ for (int i = 0; i < indexTop; i++){
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+ symbole = table->array[i];
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+ print_symbole(&symbole);
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+ }
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+ if (table->indexAvailableBottom != TABLE_SIZE - 1){
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+ printf("%-20s\t\t %-12s\t\t %-12s\t %-12s\n", "...", "...", "...", "...");
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+ for (int i = (indexBottom + 1); i < TABLE_SIZE; i++){
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+ symbole = table->array[i];
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+ print_symbole(&symbole);
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+ }
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+ }
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+
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+}
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