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#include "OutputFormatter.h"
int OutputFormatter::write(const char* buf, int count)
{
for (int i = 0; i < count; i++)
{
char c = buf[i];
if (c == '\n')
{
col = 0;
current_indent = nest_indent[nest];
}
else if (c == '\t')
{
int n = tab_size - (col % tab_size);
for (int j = 0; j < n - 1; j++)
*space_p++ = ' ';
c = ' ';
col += n;
}
else
{
col++;
}
if (c == '(')
{
nest++;
nest_indent[nest] = col;
current_indent = col;
}
else if (c == ')')
{
nest--;
}
if (c == ' ' || c == '\t' || c == '\n')
{
str.append(word, word_p - word);
word_p = word;
*space_p++ = c;
}
else
{
if (col > line_limit)
{
str.append(1, '\n');
str.append(current_indent, ' ');
col = current_indent + 1 + (word_p - word);
}
else
{
str.append(space, space_p - space);
}
space_p = space;
*word_p++ = c;
}
}
return count;
}
OutputFormatter* OutputFormatter::static_instance;
int OutputFormatter::write_static(const char* buf, int count)
{
return static_instance->write(buf, count);
}
int (*OutputFormatter::static_writer())(const char* buf, int count)
{
static_instance = this;
return &write_static;
}
OutputFormatter::OutputFormatter(int tab_size, int default_indent, int line_limit)
: tab_size{tab_size}, default_indent{default_indent}, line_limit{line_limit}, col{0}, nest{0},
nest_indent{default_indent}, current_indent{default_indent}, word_p{word}, space_p{space}
{
}
std::string OutputFormatter::get_output()
{
str.append(space, space_p - space);
space_p = space;
str.append(word, word_p - word);
word_p = word;
return std::move(str);
}
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