static char *buffer_edit(char *buf, void (*func) (const char *p))
{
int len, c;
len = strlen(buf);
if (func)
prom_printf(buf);
else {
for (c = 0; c < len; c++)
prom_printf("*");
}
for (;;) {
c = prom_getchar();
if (c == -1)
break;
if (char_is_newline(c))
break;
if (char_is_tab(c) && func)
len = tabfunc(buf, len, func);
else if (char_is_backspace(c)) {
if (len > 0) {
--len;
buf[len] = 0;
prom_printf("\b \b");
}
} else {
c = char_to_ascii(c);
if (c && len < CMD_LENG - 2) {
buf[len] = c;
buf[len + 1] = 0;
if (func)
prom_printf(buf + len);
else
prom_printf("*");
len++;
}
}
}
buf[len] = 0;
return buf;
}
void
wrap_cstr( string& wrapped, unsigned int from_column, unsigned int second_indent, const string &orig )
{
int next_space = from_column;
string next_word;
const char * out_buf = orig.c_str();
ostringstream stream;
const unsigned int second_line_column = from_column + second_indent;
string indent (second_line_column, ' ');
int newline_chars = 0;
int num_of_newlines = 0;
while (*out_buf)
{
// check for a new line
if (*out_buf)
if ((newline_chars = char_is_newline(out_buf, num_of_newlines)))
{
for (int i = 1; i <= num_of_newlines; ++i)
stream << "\\n";
out_buf += newline_chars;
if (*out_buf)
{
stream << indent;
next_space = second_line_column;
continue;
}
else
break;
}
else
{
stream << *out_buf++;
next_space++;
}
// search next whitespace, i.e., next word
while ((*out_buf) && (*out_buf != ' ') &&
! char_is_newline(out_buf, num_of_newlines))
{
// num_of_newlines is not used.
next_word += *out_buf++;
next_space++;
}
// wrap line if it's too long
if (next_space > 79)
{
stream << "\\n" << indent << next_word;
next_space = second_line_column + next_word.size();
}
else
stream << next_word; // simply write word
next_word = "";
}
wrapped += stream.str();
}
