void printCurr(list_ref list, struct options* options) {
if(!options->s_opt_silent) {
if(viewcurr_list(list) == NULL)
eprintf(" No text to print.\n");
else
printf("\t%s\n",viewcurr_list(list));
}
}
void editfile (list_ref list, char *filename) {
char stdinline[1024];
int stdincount = 0;
for(;; ++stdincount) {
printf ("%s: ", Exec_Name);
char *linepos = fgets (stdinline, sizeof stdinline, stdin);
if (linepos == NULL) break;
if (want_echo) printf ("%s", stdinline);
linepos = strchr (stdinline, '\n');
if (linepos == NULL || stdinline[0] == '\0') {
badline (stdincount, stdinline);
}else {
*linepos = '\0';
switch (stdinline[0]) {
case '$': setmove_list(list, MOVE_LAST, stdinline); break;
case '*': print_all(list, stdinline); break;
case '.': viewcurr_list(list, stdinline); break;
case '0': setmove_list(list, MOVE_HEAD, stdinline); break;
case '<': setmove_list(list, MOVE_PREV, stdinline); break;
case '>': setmove_list(list, MOVE_NEXT, stdinline); break;
case '@': debugdump_list (list, stdinline); break;
case 'a': insert_line_after (list, stdinline+1); break;
case 'd': delete_list(list, stdinline); break;
case 'i': insert_line_before(list, stdinline+1); break;
case 'r': insertfile(list, stdinline+1); break;
case 'w': writefile (list, stdinline+1, filename); break;
default : badline (stdincount, stdinline);
}
}
}
printf("%s\n", "^D");
}
/*Delete from list----------------------------------------------------*/
void delete_list(list_ref list) {
//if size is greater than zero delete
if (size > 0) {
assert(is_list(list));
assert(!empty_list(list));
//temp node for free
listnode_ref temp = list->curr;
//if only item in list change all pointers to NULL;
if (list->curr->next == NULL && list->curr->prev == NULL) {
list->head = NULL;
list->curr = NULL;
list->last = NULL;
//if at end of list
} else if (list->curr->next == NULL) {
list->curr->prev->next = list->curr->next; //NULL
list->curr = list->curr->prev;
list->last = list->curr;
//if at the front of the list
} else if (list->curr->prev == NULL) {
list->curr->next->prev = list->curr->prev; //NULL
list->curr = list->curr->next;
list->head = list->curr;
//general case
} else {
list->curr->prev->next = list->curr->next;
list->curr->next->prev = list->curr->prev;
list->curr = list->curr->next;
}
//free node that was removed
freenode(temp);
//decrement size
--size;
//print the current
if (list->curr != NULL) viewcurr_list(list);
else printf("%s: no lines in file at ./%s\n", Exec_Name, Exec_Name);
//size < 0
} else {
printf("%s: no lines in file at ./%s\n", Exec_Name, Exec_Name);
}
}
int writeFile(list_ref list, char *filename, struct options* options) {
int count = 0;
FILE *f = fopen(filename, "w");
if(f == NULL) {
eprintf("Error writing to file %s\n", filename);
fclose(f);
return -1;
}
for(setmove_list(list, MOVE_HEAD); setmove_list(list, MOVE_NEXT);) {
fputs(viewcurr_list(list), f);
fputs("\n",f);
count++;
}
return count;
}
void editfile (list_ref list) {
char stdinline[1024];
int stdincount = 0;
for(;; ++stdincount) {
printf ("%s: ", Exec_Name);
char *linepos = fgets (stdinline, sizeof stdinline, stdin);
if(isspace(stdinline[0]) != 0) {
continue;
}
if (linepos == NULL) break;
if (want_echo) printf ("%s", stdinline);
linepos = strchr (stdinline, '\n');
if (linepos == NULL || stdinline[0] == '\0') {
badline (stdincount, stdinline);
} else {
*linepos = '\0';
switch (stdinline[0]) {
case '$':
setmove_list (list, MOVE_LAST);
break;
case '*':
print_list(list);
break;
case '.':
printf("%6d: %s\n",counter(list, curr),
viewcurr_list (list));
break;
case '0':
setmove_list (list, MOVE_HEAD);
break;
case '<':
setmove_list (list, MOVE_PREV);
break;
case '>':
setmove_list (list, MOVE_NEXT);
break;
case '@':
debugdump_list (list);
break;
case 'a':
insertAfter(list, stdinline+1, curr);
break;
case 'd':
delete_list (list);
break;
case 'i':
insertBefore(list, stdinline+1);
break;
case 'r':
putfilelist (list, stdinline+1, 0);
break;
case 'w':
putfilelist (list, stdinline+1, 2);
break;
case '#':
break;
default :
badline (stdincount, stdinline);
}
}
}
printf (" ^D\n");
}
void ComI(list_ref list, char *inputline, char *stdinline) {
inputline = Sstrcpy(inputline, stdinline);
insert_listi(list, inputline);
viewcurr_list(list);
}
void ComR(list_ref list) {
setmove_list(list, MOVE_NEXT);
viewcurr_list(list);
}
void ComL(list_ref list) {
setmove_list(list, MOVE_PREV);
viewcurr_list(list);
}
void Com0(list_ref list) {
setmove_list(list, MOVE_HEAD);
viewcurr_list(list);
}
void ComDot(list_ref list) {
viewcurr_list(list);
}
void Com$(list_ref list) {
setmove_list(list, MOVE_LAST);
viewcurr_list(list);
}
