C - Remove all comments from a C program-蒲公英云

C - Remove all comments from a C program

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/*
 * Write a program to remove all comments from a C program.
 * Don't forget to handle quoted strings and character constants properly.
 * C comments don't nest.
 *
 * RemoveComment.c - by FreeMan
 */
#include <stdio.h>
#define MAXLINE 1024 /* Max input line size */
char line[MAXLINE]; /* Current input line */
int GetLine(void);
int main()
{
    int in_comment, len;
    int in_quote;
    int t;
    in_comment = in_quote = t = 0;
    while ((len = GetLine()) > 0)
    {
        t = 0;
        while (t < len)
        {
            if (line[t] == '"')
            {
                in_quote = 1;
            }
            if (!in_quote)
            {
                if (line[t] == '/' && line[t + 1] == '*')
                {
                    t = t + 2;
                    in_comment = 1;
                }
                if (line[t] == '*' && line[t + 1] == '/')
                {
                    t = t + 2;
                    in_comment = 0;
                }
                if (in_comment == 1)
                {
                    t++;
                }
                else
                {
                    printf("%c", line[t]);
                    t++;
                }
            }
            else
            {
                printf("%c", line[t]);
                t++;
            }
        }
    }
    return 0;
}
/* GetLine: Specialized version */
int GetLine(void)
{
    int c, i;
    extern char line[];
    for (i = 0; i < MAXLINE - 1 && (c = getchar()) != EOF && c != '\n'; ++i)
    {
        line[i] = c;
    }
    if (c == '\n')
    {
        line[i] = c;
        ++i;
    }
    line[i] = '\0';
    return i;
}