gathing-eng/badroff.c


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#include <stdio.h>
#include <string.h>

typedef char bool;
#define true 1
#define false 0
int main(int argc, char** argv){
    FILE* in;
    if (argc >= 2)
        in = fopen(argv[1], "r");
    else
        in = stdin;
    if (in == NULL){
        perror(argv[1]);
        return 1;
    }
    int c;
    bool nl = true;
    bool cmd = false;
    char cmds[81];
    int cmdlen = 0;
    while ( (c = fgetc(in)) != EOF){
        if (c == '\n'){
            if (cmd){
                if (! strncmp(cmds,"CT",2)){
                    for (int i=0; i<(83-strnlen(cmds,80))/2; i++)
                        printf(" ");
                    printf("%s\n",cmds+3);
                } else printf("%s\n",cmds);
                cmd = false;
                cmds[0] = '\0';
                cmdlen = 0;
            }
            else printf("\n");
            nl = true;
        }
        else{
        if (c == '.' && nl)
            cmd = true;
        else if (cmd){
            cmds[cmdlen] = c;
            cmds[cmdlen+1] = '\0';
            cmdlen++;
        }
        else printf("%c",c);
        nl = false;
        }
    }
    return 0;
}