EE308_Lab1-2

3. Ideas to slove the Lab

1. Import the file and save each line of sample code to the array for future search and comparison.

2. Store all keyword categories in an array

3. Compare the sample code array with the keyword group to count the number of code keywords.

4. Understand the relationship between switches and cases, and correctly count the number of switches and cases in each segment

5. Find out the relationship between if, else if and else, design an appropriate algorithm, and calculate the quantity correctly.

4. Design and implementation process

#include <string>
#include <iostream>
#include <fstream>
using namespace std;
the_keyword = ["auto", "break", "case", "char", "levelst", "leveltinue", "default", "do",
                 "double", "else", "enum", "extern", "float", "for", "goto", "if",
                 "int", "long", "register", "return", "short", "signed", "sizeof", "stastic",
                 "struct", "switch", "typedef", "union", "unsigned", "void", "else-if", "while"]
f = open(path, "r")

Key Code Explanation

1.Establish the variables to store value:

now_line = f.readline()
now_line = now_line[:-1]
the_keywords_length = 32
num_a = 0
num_b = []
flag_if = 0
flag_else_if = 0
num_if_else = 0
num_if_else_if_else = 0
sentences = []
x_len = 100000
count = np.zeros(the_keywords_length, dtype=int)

2.Code for level 1 and level 2:

while now_line:
    now_line = f.readline()
    now_line = now_line[:-1]
    now_line = now_line.replace("else if", "else-if")   ## it's convenient for searching
    x = re.split(' |\(|\;|\\t|\:|\{|\/\/', now_line)##split the words from  sentences
 
    for i in x:
        if (i == "if" or i == "else" or i == "else-if"):
            sentences.append(x)
            continue
    for i in x:
        for j in range(32):
            if (i == the_keyword[j]):
                if (i == "switch"):
                    num_b.append(num_a)
                    num_a = 0
                if (i == "case"):
                    num_a += 1
                count[j] += 1
 
f.close()##close the file
num_b.append(num_a) 
sum = 0
for i in range(32):
    if (count[i] != 0):
        sum += count[i]
        if (i == 30):
            sum += count[i]

3.Code for level 3 and level 4:

for i in sentences:
    if (len(i) < x_len):
        x_len = len(i)
 
 
for j in range(x_len):
    for i in sentences:
        if (i[j] == "if"):
            flag_if = 1
        if (i[j] == "else-if"):
            flag_else_if = 1
        if (i[j] == "else"):
            if (flag_else_if == 1):
                num_if_else_if_else += 1
            elif (flag_if == 1):
                num_if_else += 1
            flag_else_if = 0
            flag_else = 0

4.Print the result:

    print("sum : ", sum)  # 1
    print(the_keyword[25], " num : ", count[25])  # 2
    print("case num", num_b[1:3])  # 2
    print("if-else num:", num_if_else)   # 3
    print("if-elseif-else num:", num_if_else_if_else)   # 4

5.Unit test screenshots and description

6.Unit test coverage optimization and performance testing

7.Summarize this assignment.

This experiment was my first introduction to Github. I don't know anything about many of the features. There are some difficulties in the specific operation. So, I searched a lot of information and spent a lot of time.
I need to improve my ability to combine theory with practice. I hope to make more progress in the practical operation in the future.