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Simple_C_compiler.cpp
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Simple_C_compiler.cpp
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/*
This is a simple function C compiler written by C++.
It was a Processing Language class homework about 2 years ago.
Author: Lana, Chen
Date: March 20th, 2020
*/
# include <stdexcept> // std::out_of_range
# include <iterator>
# include <iomanip>
# include <stdio.h>
# include <stdlib.h>// atoi
# include <iostream>
# include <vector>
# include <string.h>// strcpy
# include <math.h>
# include <string>
using namespace std;
struct Token {
string token;
int lineNo;
string type;
};
struct Var_and_Type{
string type;
string var_name;
string index;
bool hasIndex;
};
struct Func_and_Type{
string type;
string func_name;
vector<string> others;
};
// Id_and_Type_and_Value = Var_and_Type_and_Value + Func_and_Type_and_Value
struct Id_and_Type_and_Value{
bool _int;
bool _char;
bool _float;
bool _bool;
bool _string;
bool _void;
int i_value;
char c_value;
float f_value;
bool b_value;
string s_value;
string id_name;
string index;
bool hasIndex;
};
Token g_peekToken;
vector<Token> g_getToken;
vector<Token> g_AllTokens; // during do CutToken(), store in AllTokens
vector<Token> g_ID_table;
vector<Token> g_ID_table_local;
vector<Var_and_Type> g_All_Var;
vector<Var_and_Type> g_temp_Var; // 若宣告的文法正確，才存進g_All_Var(temp_var可能有多個var)
Var_and_Type g_one_Var;
vector<Func_and_Type> g_All_Func;
Func_and_Type g_temp_Func; // 若宣告的文法正確，才存進g_All_Func(temp_func只有一個func)
bool g_is_undefined_token; // use for ListVariable()&ListFunction()
string g_undefined_token; // use for ListVariable()&ListFunction()
bool g_is_undefined_error = false; // 在錯誤輸出時根據此變數判斷是否是undefined還是unexpected
string g_done_str = ""; // Done();
int g_now_error_lineNo; // User_Input()的讀到換行
bool g_is_done_stmt = false; // only exist in stmt()'s Done();
vector<Id_and_Type_and_Value> g_All_Var_and_Type_and_Value; // 不用分glocal跟local,因為需用到此變數時表示過了check那關了
vector<Id_and_Type_and_Value> g_All_Func_and_Type_and_Value;
Id_and_Type_and_Value g_one_Id_and_Type_and_Value; // use for temporarity use
vector<Token> g_vec_Token_for_Eval;
void StoreID( Token token ) {
g_ID_table.push_back( token );
} // StoreID()
void StoreLocalID( Token token ) {
g_ID_table_local.push_back( token );
} // StoreLocalID()
// 因為老大數據沒有var跟func同名的情況
bool Is_id_exist( Token token ) {
for ( int i = 0 ; i < g_ID_table.size() ; i++ ) {
if ( token.token == g_ID_table.at( i ).token )
return true;
} // for
for ( int i = 0 ; i < g_ID_table_local.size() ; i++ ) {
if ( token.token == g_ID_table_local.at( i ).token )
return true;
} // for
for ( int i = 0 ; i < g_All_Var.size() ; i++ ) {
if ( token.token == g_All_Var.at( i ).var_name )
return true;
} // for
return false;
} // Is_id_exist()
// 判斷傳進來的字串(.others)是否為id
bool Is_identifier( string str ) {
string record_str = "";
record_str = record_str + str[0];
if ( str[0] == '_' || ( str[0] >= 'A' && str[0] <= 'Z' ) || ( str[0] >= 'a' && str[0] <= 'z' ) ) {
for ( int i = 1 ; i < str.length() ; i++ ) {
if ( ( str[i] != '_' ) && ( str[i] < 'A' || str[i] > 'Z' ) &&
( str[i] < 'a' || str[i] > 'z' ) && ( str[i] < '0' || str[i] > '9' ) )
return false;
record_str = record_str + str[i];
} // for
if ( record_str == "if" || record_str == "else" || record_str == "do" || record_str == "while" ||
record_str == "cin" || record_str == "cout" )
return false;
else
return true;
} // if
else
return false;
} // Is_identifier()
// 判斷傳進來的字串(.others)是否為num
bool Is_num( string str ) {
string record_str = "";
record_str = record_str + str[0];
bool hasDot = false;
bool isDotRepeat = false;
if ( str[0] == '.' || ( str[0] >= '0' && str[0] <= '9' ) ) {
// .或數字開頭('".數字中) //
if ( str[0] == '.' ) { // start with .
for ( int i = 1 ; i < str.length() ; i++ ) {
if ( ( str[i] < '0' || str[i] > '9' ) )
return false;
} // for
return true;
} // if
else { // start with 0-9
for ( int i = 1 ; !isDotRepeat && i < str.length() ; i++ ) {
if ( str[i] != '.' && ( str[i] < '0' || str[i] > '9' ) )
return false;
if ( str[i] == '.' && hasDot )
isDotRepeat = true; // leave the loop
if ( str[i] == '.' && !hasDot )
hasDot = true;
} // for
if ( isDotRepeat )
return false;
else
return true;
} // else
} // if
else
return false;
} // Is_num()
void Clear_g_one_Id_and_Type_and_Value( ) {
g_one_Id_and_Type_and_Value._int = false;
g_one_Id_and_Type_and_Value._char = false;
g_one_Id_and_Type_and_Value._float = false;
g_one_Id_and_Type_and_Value._bool = false;
g_one_Id_and_Type_and_Value._string = false;
g_one_Id_and_Type_and_Value._void = false;
g_one_Id_and_Type_and_Value.i_value = -999;
g_one_Id_and_Type_and_Value.c_value = '\0';
g_one_Id_and_Type_and_Value.f_value = -999;
g_one_Id_and_Type_and_Value.b_value = false;
g_one_Id_and_Type_and_Value.s_value = "";
g_one_Id_and_Type_and_Value.id_name = "";
g_one_Id_and_Type_and_Value.index = -99;
g_one_Id_and_Type_and_Value.hasIndex = false;
} // Clear_g_one_Id_and_Type_and_Value()
// 以下四個func: Priority(), InToPostfix(), Cal(), Eval()是寫給float計算，而Cal_int(), Eval_int()是給int計算
int Priority( Token op ) {
if ( op.token == "+" || op.token == "-" )
return 1;
else if ( op.token == "*" || op.token == "/" || op.token == "%" )
return 2;
else
return 0;
} // Priority()
void InToPostfix( vector<Token> infix, vector<Token> &postfix ) {
Token _postfix[80];
Token _infix[80];
Token _stack[80];
int i, j, top;
for ( int k = 0 ; k < 80 ; k++ ) // "-999"用作判斷，結束func()前複製會用到
_postfix[k].token = "-999";
for( int k = 0; k < infix.size() ; k++ )
_infix[k] = infix[k];
for( i = 0, j = 0, top = 0; i < infix.size() ; i++ ) {
if ( _infix[i].token == "(" ) // 運算子堆疊
_stack[++top] = _infix[i];
else if ( _infix[i].token == "+" || _infix[i].token == "-" ||
_infix[i].token == "*" || _infix[i].token == "/" || _infix[i].token == "%" ) {
while( Priority( _stack[top] ) >= Priority( _infix[i] ) )
_postfix[j++] = _stack[top--];
_stack[++top] = _infix[i]; // 存入堆疊
} // else if
else if ( _infix[i].token == ")" ) {
while( _stack[top].token != "(" ) // 遇 ) 輸出至 (
_postfix[j++] = _stack[top--];
top--; // 不輸出 (
} // else if
else // 運算元直接輸出
_postfix[j++] = _infix[i];
} // for
while( top > 0 )
_postfix[j++] = _stack[top--];
for ( int i = 0 ; i < infix.size() ; i++ ) {
if ( _postfix[i].token != "-999" )
postfix.push_back( _postfix[i] );
} // for
} // inToPostfix()
float Cal( Token op, float f1, float f2 ) {
float value1, value2;
int tmp_int;
if ( op.token == "+" )
return f1 + f2;
else if ( op.token == "-" )
return f1 - f2;
else if ( op.token == "*" )
return f1 * f2;
else if ( op.token == "/" )
return f1 / f2;
else
return -999; // this case shouldn't exist!!!
} // Cal()
float Eval( ) {
vector<Token> postfix;
Token opnd;
float _stack[80];
int record;
InToPostfix( g_vec_Token_for_Eval, postfix );
int top, i;
for( top = 0, i = 0; i < postfix.size() ; i++ ) {
if( postfix[i].token == "+" || postfix[i].token == "-" ||
postfix[i].token == "*" || postfix[i].token == "/" || postfix[i].token == "%" ) {
_stack[top - 1] = Cal( postfix[i], _stack[top - 1], _stack[top] );
top--;
} // if
else {
if ( Is_identifier( postfix[i].token ) ) {
// turn ids to numbers
for ( int k = 0 ; k < g_All_Var_and_Type_and_Value.size() ; k++ ) {
if ( postfix[i].token == g_All_Var_and_Type_and_Value[k].id_name )
_stack[++top] = g_All_Var_and_Type_and_Value[k].f_value;
} // for
} // if
else {
opnd = postfix[i];
_stack[++top] = atof( opnd.token.c_str() ); //將字串中的數字轉換為 float
} // else
} // else
} // for
return _stack[ top ];
} // Eval()
int Cal_int( Token op, int i1, int i2 ) {
int value1, value2;
int tmp_int;
if ( op.token == "+" )
return i1 + i2;
else if ( op.token == "-" )
return i1 - i2;
else if ( op.token == "*" )
return i1 * i2;
else if ( op.token == "/" )
return i1 / i2;
else if ( op.token == "%" )
return i1 / i2;
else
return -999; // this case shouldn't exist!!!
} // Cal_int()
int Eval_int( ) {
vector<Token> postfix;
Token opnd;
int _stack[80];
int record;
InToPostfix( g_vec_Token_for_Eval, postfix );
int top, i;
for( top = 0, i = 0; i < postfix.size() ; i++ ) {
if( postfix[i].token == "+" || postfix[i].token == "-" ||
postfix[i].token == "*" || postfix[i].token == "/" || postfix[i].token == "%" ) {
_stack[top - 1] = Cal( postfix[i], _stack[top - 1], _stack[top] );
top--;
} // if
else {
if ( Is_identifier( postfix[i].token ) ) {
// turn ids to numbers
for ( int k = 0 ; k < g_All_Var_and_Type_and_Value.size() ; k++ ) {
if ( postfix[i].token == g_All_Var_and_Type_and_Value[k].id_name )
_stack[++top] = g_All_Var_and_Type_and_Value[k].i_value;
} // for
} // if
else {
opnd = postfix[i];
_stack[++top] = atoi( opnd.token.c_str() ); //將字串中的數字轉換為 int
} // else
} // else
} // for
return _stack[ top ];
} // Eval_int()
int g_peekTokenNo; // 在第幾個g_AllTokens上
int g_nearest_error_in_which_line;
int g_lineNo;
int g_last_exe_lineNo; // exe_line include: succeed & error lines
bool g_hasError; // 判斷目前為止的副程式有沒有error，有error就true
void User_input() ;
bool Definition( Token &token, int &IsVar_or_Func ) ;
bool Type_specifier( Token &token ) ;
bool Function_definition_or_declarators( Token &token ) ;
bool Rest_of_declarators( Token &token ) ;
bool Function_definition_without_ID( Token &token ) ;
bool Formal_parameter_list( Token &token ) ;
bool Compound_statement( Token &token ) ;
bool Declaration( Token &token ) ;
bool Statement( Token &token ) ;
bool Stmt_for_Compound_stmt( Token &token ) ;
bool Expression( Token &token ) ;
bool Basic_expression( Token &token ) ;
bool Rest_of_Identifier_started_basic_exp( Token &token ) ;
bool Rest_of_PPMM_Identifier_started_basic_exp( Token &token ) ;
bool Sign( Token &token ) ;
bool Actual_parameter_list( Token &token ) ;
bool Assignment_operator( Token &token ) ;
bool Romce_and_romloe( Token &token ) ;
bool Rest_of_maybe_logical_OR_exp( Token &token ) ;
bool Maybe_logical_AND_exp( Token &token ) ;
bool Rest_of_maybe_logical_AND_exp( Token &token ) ;
bool Maybe_bit_OR_exp( Token &token ) ;
bool Rest_of_maybe_bit_OR_exp( Token &token ) ;
bool Maybe_bit_ex_OR_exp( Token &token ) ;
bool Rest_of_maybe_bit_ex_OR_exp( Token &token ) ;
bool Maybe_bit_AND_exp( Token &token ) ;
bool Rest_of_maybe_bit_AND_exp( Token &token ) ;
bool Maybe_equality_exp( Token &token ) ;
bool Rest_of_maybe_equality_exp( Token &token ) ;
bool Maybe_relational_exp( Token &token ) ;
bool Rest_of_maybe_relational_exp( Token &token ) ;
bool Maybe_shift_exp( Token &token ) ;
bool Rest_of_maybe_shift_exp( Token &token ) ;
bool Maybe_additive_exp( Token &token ) ;
bool Rest_of_maybe_additive_exp( Token &token ) ;
bool Maybe_mult_exp( Token &token ) ;
bool Rest_of_maybe_mult_exp( Token &token ) ;
bool Unary_exp( Token &token ) ;
bool Signed_unary_exp( Token &token ) ;
bool Unsigned_unary_exp( Token &token ) ;
void CutToken( ) ;
// 只印var名字
void ListAllVariables( ) {
Var_and_Type v; // for temporarily use
bool tmp_bool = false; // for temporarily use
Var_and_Type tmp_v; // for temporarily use
// delete those duplicate ones
for ( int i = 0 ; i < g_All_Var.size() ; i++ ) {
for ( int j = i + 1 ; j < g_All_Var.size() ; j++ ) {
tmp_v = g_All_Var.at( i );
if ( g_All_Var.at( j ).var_name == tmp_v.var_name ) {
g_All_Var.erase( g_All_Var.begin() + j );
j--; // avoid to miss check
} // if
} // for
} // for
// bubble sort
for ( int i = 0, k = 0 ; i < g_All_Var.size() ; i++, k++ ) {
for ( int j = 0 ; j < g_All_Var.size() - k ; j++ ) {
if ( ( j + 1 < g_All_Var.size() ) &&
( g_All_Var.at( j ).var_name > g_All_Var.at( j + 1 ).var_name ) ) {
// swap( g_All_Var.at( j ), g_All_Var.at( j + 1 ) );
v = g_All_Var.at( j );
g_All_Var.at( j ) = g_All_Var.at( j + 1 );
g_All_Var.at( j + 1 ) = v;
} // if
} // for
} // for
// print
for ( int i = 0 ; i < g_All_Var.size() ; i++ ) {
for ( int j = 0 ; j < g_ID_table.size() ; j++ ) {
if ( g_All_Var.at( i ).var_name == g_ID_table.at( j ).token )
tmp_bool = true;
} // for
if ( tmp_bool )
cout << g_All_Var.at( i ).var_name << endl;
tmp_bool = false; // initialize
} // for
} // ListAllVariables()
// 只印func名字
void ListAllFunctions( ) {
Func_and_Type f; // for templately use
// bubble sort
for ( int i = 0, k = 0 ; i < g_All_Func.size() ; i++, k++ ) {
for ( int j = 0 ; j < g_All_Func.size() - k ; j++ ) {
if ( ( j + 1 < g_All_Func.size() ) &&
( g_All_Func.at( j ).func_name > g_All_Func.at( j + 1 ).func_name ) ) {
// swap( g_All_Func.at( j ), g_All_Func.at( j + 1 ) );
f = g_All_Func.at( j );
g_All_Func.at( j ) = g_All_Func.at( j + 1 );
g_All_Func.at( j + 1 ) = f;
} // if
} // for
} // for
// print
for ( int i = 0 ; i < g_All_Func.size() ; i++ )
cout << g_All_Func.at( i ).func_name << "()" << endl;
} // ListAllFunctions()
Token PeekToken() {
Token token;
if ( g_AllTokens.size() == 0 ) {
while ( g_AllTokens.size() == 0 )
CutToken();
token = g_AllTokens.at( g_peekTokenNo );
g_peekTokenNo++;
} // if
else if ( g_peekTokenNo < g_AllTokens.size() ) {
token = g_AllTokens.at( g_peekTokenNo );
g_peekTokenNo++;
} // else if
else {
while ( g_peekTokenNo >= g_AllTokens.size() )
CutToken();
token = g_AllTokens.at( g_peekTokenNo );
g_peekTokenNo++;
} // else
return token;
} // PeekToken()
void GetToken( Token token ) {
g_getToken.push_back( token );
} // GetToken()
// 刪除最後一個token
void EraseLastToken() {
g_getToken.erase( g_getToken.end() );
} // EraseLastToken()
void CutToken() {
char chr;
string str = "";
string done_str = ""; // Done+()
Token one_Token;
Token tmp_Token;
int tmp_int = 0;
bool isAlpha = false;
bool hasDot = false;
bool isDotRepeat = false;
int start = 0;
bool is_start_zero = false;
scanf( "%c", &chr );
str += chr;
while ( chr != '\n' ) {
scanf( "%c", &chr );
str += chr;
} // while
for ( int i = 0 ; i < str.length() ; i++ ) {
// ==============================Identifier===================================== //
// Identifier : start with _ or A-Z or a-z, exclude int,float,if,while,etc ====//
if ( str[i] == '_' || ( str[i] >= 'A' && str[i] <= 'Z' ) || ( str[i] >= 'a' && str[i] <= 'z' ) ) {
tmp_int = i;
for ( i = i + 1 ; str[i] == '_' || ( str[i] >= 'A' && str[i] <= 'Z' ) ||
( str[i] >= 'a' && str[i] <= 'z' ) || ( str[i] >= '0' && str[i] <= '9' ) ; i++ )
;
one_Token.token.assign( str, tmp_int, i-tmp_int ); // means from tmp_int to i-1
one_Token.lineNo = g_lineNo;
if ( one_Token.token == "ListAllVariables" )
one_Token.type = "ListAllVariables";
else if ( one_Token.token == "ListVariable" )
one_Token.type = "ListVariable";
else if ( one_Token.token == "ListAllFunctions" )
one_Token.type = "ListAllFunctions";
else if ( one_Token.token == "ListFunction" )
one_Token.type = "ListFunction";
else if ( one_Token.token == "cin" )
one_Token.type = "CIN";
else if ( one_Token.token == "cout" )
one_Token.type = "COUT";
else if ( one_Token.token == "Done" )
one_Token.type = "DONE";
else if ( one_Token.token == "true" )
one_Token.type = "Constant";
else if ( one_Token.token == "false" )
one_Token.type = "Constant";
else if ( one_Token.token == "int" )
one_Token.type = "INT";
else if ( one_Token.token == "float" )
one_Token.type = "FLOAT";
else if ( one_Token.token == "char" )
one_Token.type = "CHAR";
else if ( one_Token.token == "bool" )
one_Token.type = "BOOL";
else if ( one_Token.token == "string" )
one_Token.type = "STRING";
else if ( one_Token.token == "void" )
one_Token.type = "VOID";
else if ( one_Token.token == "if" )
one_Token.type = "IF";
else if ( one_Token.token == "else" )
one_Token.type = "ELSE";
else if ( one_Token.token == "while" )
one_Token.type = "WHILE";
else if ( one_Token.token == "do" )
one_Token.type = "DO";
else if ( one_Token.token == "return" )
one_Token.type = "RETURN";
else
one_Token.type = "Identifier";
g_AllTokens.push_back( one_Token );
i--; // 目的不要在進下一次迴圈時跳過str[i]
} // if
// ==============================Identifier========================================= //
// ==============================Constant=========================================== //
// Constant : start with ' or " or . or 0-9 ================= //
else if ( str[i] == '\'' || str[i] == '"' || str[i] == '.' || ( str[i] >= 48 && str[i] <= 57 ) ) {
// '開頭('".數字中) //
if ( str[i] == '\'' ) {
if ( str[i+1] == '\'' ) {
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, i, 2 ); // means i to i+1
one_Token.type = "Constant";
g_AllTokens.push_back( one_Token );
i = i + 1;
} // if
else if ( str[i+2] == '\'' ) {
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, i, 3 ); // means i to i+2
one_Token.type = "Constant";
g_AllTokens.push_back( one_Token );
i = i + 2;
} // else if
else if ( str[i+1] == '\\' && str[i+3] == '\'' ) { // eg. '\n' '\t' etc
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, i, 4 ); // means i to i+3
one_Token.type = "Constant";
g_AllTokens.push_back( one_Token );
i = i + 3;
} // else if
else {
tmp_int = i;
for ( i = i + 1 ; str[i] != ' ' && str[i] != '\t' && str[i] != '\n' && str[i] != '(' &&
str[i] != '\'' && str[i] != '\"' &&
str[i] != '[' && str[i] != '{' && str[i] != ')' && str[i] != ']' &&
str[i] != '}' && str[i] != '+' && str[i] != '-' && str[i] != '*' &&
str[i] != '/' && str[i] != '%' && str[i] != '^' && str[i] != '>' &&
str[i] != '<' && str[i] != '=' && str[i] != '!' && str[i] != '&' &&
str[i] != '|' && str[i] != ';' && str[i] != ',' && str[i] != '?' &&
str[i] != ':' ; i++ )
;
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, tmp_int, i-tmp_int ); // means tmp_int to i-1
one_Token.type = "Nothing";
g_AllTokens.push_back( one_Token );
if ( str[i] == '\n' )
;
i--; // 怕下一次迴圈沒存到str[i]
} // else
} // if
// '開頭('".數字中) //
// "開頭('".數字中) //
else if ( str[i] == '"' ) {
tmp_int = i;
for ( i = i + 1 ; str[i] != '"' && str[i] != '\n' ; i++ )
;
if ( str[i] == '"' ) {
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, tmp_int, i+1-tmp_int ); // means tmp_int to i
one_Token.type = "Constant";
g_AllTokens.push_back( one_Token );
} // if
else { // 表示str[i]是'\n'
one_Token.lineNo = g_lineNo;
one_Token.token = "\"";
one_Token.type = "Nothing";
g_AllTokens.push_back( one_Token );
g_lineNo++;
} // else
} // else if
// "開頭('".數字中) //
// .或數字開頭('".數字中) //
else if ( str[i] == '.' || ( str[i] >= '0' && str[i] <= '9' ) ) {
if ( str[i] == '.' ) {
tmp_int = i;
if ( str[i+1] == '.' ) {
one_Token.type = "Nothing";
one_Token.lineNo = g_lineNo;
one_Token.token = ".";
g_AllTokens.push_back( one_Token );
i = i + 1;
} // if
else {
for ( i = i + 1 ; ( str[i] >= '0' && str[i] <= '9' ) ; i++ )
;
one_Token.type = "Constant";
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, tmp_int, i-tmp_int ); // means tmp_int to i-1
g_AllTokens.push_back( one_Token );
} // else
} // if
else {
tmp_int = i;
for ( i = i + 1 ; !isDotRepeat &&
( str[i] == '.' || ( str[i] >= '0' && str[i] <= '9' ) ) ; i++ ) {
if ( str[i] == '.' && hasDot ) {
isDotRepeat = true; // leave the loop
i--; // dont forget to -- ,cuz next time needs ++ before this loop
} // if
if ( str[i] == '.' && !hasDot )
hasDot = true;
} // for
one_Token.type = "Constant";
one_Token.lineNo = g_lineNo;
one_Token.token.assign( str, tmp_int, i-tmp_int ); // means tmp_int to i-1
g_AllTokens.push_back( one_Token );
} // else
hasDot = false; // initialize
isDotRepeat = false; // initialize
i--; // 避免str[i]沒存到、下一回從i開始
} // else if
// .或數字開頭('".數字中) //
} // else if
// ==============================Constant=========================================== //
// ===(=== //
else if ( str[i] == '(' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "(";
one_Token.type = "(";
g_AllTokens.push_back( one_Token );
} // else if
// ===)=== //
else if ( str[i] == ')' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = ")";
one_Token.type = ")";
g_AllTokens.push_back( one_Token );
} // else if
// ===[=== //
else if ( str[i] == '[' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "[";
one_Token.type = "[";
g_AllTokens.push_back( one_Token );
} // else if
// ===]=== //
else if ( str[i] == ']' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "]";
one_Token.type = "]";
g_AllTokens.push_back( one_Token );
} // else if
// ==={=== //
else if ( str[i] == '{' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "{";
one_Token.type = "{";
g_AllTokens.push_back( one_Token );
} // else if
// ===}=== //
else if ( str[i] == '}' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "}";
one_Token.type = "}";
g_AllTokens.push_back( one_Token );
} // else if
// ========================== + ==================================== //
else if ( str[i] == '+' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "+=";
one_Token.type = "PE";
g_AllTokens.push_back( one_Token );
i++;
} // if
else if ( str[i+1] == '+' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "++";
one_Token.type = "PP";
g_AllTokens.push_back( one_Token );
i++;
} // if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "+";
one_Token.type = "+";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// =========================== + ======================================== //
// ========================== - ==================================== //
else if ( str[i] == '-' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "-=";
one_Token.type = "ME";
g_AllTokens.push_back( one_Token );
i++;
} // if
else if ( str[i+1] == '-' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "--";
one_Token.type = "MM";
g_AllTokens.push_back( one_Token );
i++;
} // if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "-";
one_Token.type = "-";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// =========================== - ======================================== //
// ========================== * ==================================== //
else if ( str[i] == '*' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "*=";
one_Token.type = "TE";
g_AllTokens.push_back( one_Token );
i++;
} // if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "*";
one_Token.type = "*";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// =========================== * ======================================== //
// ========================== / ==================================== //
else if ( str[i] == '/' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "/=";
one_Token.type = "DE";
g_AllTokens.push_back( one_Token );
i++;
} // if
else if ( str[i+1] == '/' ) { // 註解後面的要刪掉
for ( i = i + 2 ; str[i] != '\n' ; i++ )
;
g_lineNo++;
} // else if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "/";
one_Token.type = "/";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// =========================== / ======================================== //
// ========================== % ==================================== //
else if ( str[i] == '%' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "%=";
one_Token.type = "RE";
g_AllTokens.push_back( one_Token );
i++;
} // if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "%";
one_Token.type = "%";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// =========================== % ======================================== //
// ===^=== //
else if ( str[i] == '^' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "^";
one_Token.type = "^";
g_AllTokens.push_back( one_Token );
} // else if
// ============================>=========================================== //
else if ( str[i] == '>' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = ">=";
one_Token.type = "GE";
g_AllTokens.push_back( one_Token );
i++;
} // if
else if ( str[i+1] == '>' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = ">>";
one_Token.type = "RS";
g_AllTokens.push_back( one_Token );
i++;
} // else if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = ">";
one_Token.type = ">";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// ============================>=========================================== //
// ============================<=========================================== //
else if ( str[i] == '<' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "<=";
one_Token.type = "LE";
g_AllTokens.push_back( one_Token );
i++;
} // if
else if ( str[i+1] == '<' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "<<";
one_Token.type = "LS";
g_AllTokens.push_back( one_Token );
i++;
} // else if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "<";
one_Token.type = "<";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// ============================<=========================================== //
// ========================== = ==================================== //
else if ( str[i] == '=' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "==";
one_Token.type = "EQ";
g_AllTokens.push_back( one_Token );
i++;
} // if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "=";
one_Token.type = "=";
g_AllTokens.push_back( one_Token );
} // else
} // else if
// =========================== = ======================================== //
// ========================== ! ==================================== //
else if ( str[i] == '!' ) {
if ( str[i+1] == '=' ) {
one_Token.lineNo = g_lineNo;
one_Token.token = "!=";
one_Token.type = "NEQ";
g_AllTokens.push_back( one_Token );
i++;
} // if
else {
one_Token.lineNo = g_lineNo;
one_Token.token = "!";
one_Token.type = "!";
g_AllTokens.push_back( one_Token );
} // else
} // else if