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#include <stack>
#include <map>
#include "../io/cxxstdio.hpp"
#include "lexer.hpp"
#include "parser.hpp"
#include "../poison.hpp"
enum Spacing
{
LINES,
SIMPLE,
SPACES,
SPACES_1,
SPACES_2,
SPACES_3,
SPACES_4,
};
static
void do_spacing(bool& first, Spacing& sp, int depth)
{
if (first)
{
first = false;
return;
}
switch (sp)
{
case LINES:
PRINTF("\n%*s", (depth - 1) * 4, "");
return;
case SPACES:
case SIMPLE:
PRINTF(" ");
return;
case SPACES_1:
PRINTF(" ");
sp = LINES;
return;
case SPACES_2:
PRINTF(" ");
sp = SPACES_1;
return;
case SPACES_3:
PRINTF(" ");
sp = SPACES_2;
return;
case SPACES_4:
PRINTF(" ");
sp = SPACES_3;
return;
}
}
static
void adjust_spacing(Spacing& sp, ZString val)
{
std::map<ZString, Spacing> spaces =
{
{"BLOCK", LINES},
{"GUARD", LINES},
{"DISABLED", LINES},
{"PROCEDURE", SPACES_2},
{"SPELL", SPACES_4},
{"IF", SPACES_1},
{"set_script_variable", SPACES_2},
};
auto it = spaces.find(val);
if (it != spaces.end())
sp = it->second;
}
int main()
{
if (1 == 1)
{
sexpr::Lexer lexer("/dev/stdin");
sexpr::SExpr sexpr;
while (sexpr::parse(lexer, sexpr))
{
PRINTF("");
}
if (lexer.peek() != sexpr::TOK_EOF)
{
lexer.span().error(STRPRINTF("Incomplete: %s: %s\n",
sexpr::token_name(lexer.peek()), lexer.val_string()));
}
return 0;
}
std::stack<Spacing> spacing;
spacing.push(LINES);
sexpr::Lexer lexer("/dev/stdin");
bool first = true;
while (sexpr::Lexeme tok = lexer.peek())
{
switch (tok)
{
case sexpr::TOK_OPEN:
if (spacing.top() == SIMPLE)
spacing.top() = LINES;
do_spacing(first, spacing.top(), spacing.size());
PRINTF("(");
spacing.push(SIMPLE);
first = true;
break;
case sexpr::TOK_CLOSE:
PRINTF(")");
spacing.pop();
first = false;
break;
case sexpr::TOK_STRING:
do_spacing(first, spacing.top(), spacing.size());
PRINTF("%s", sexpr::escape(lexer.val_string()));
break;
case sexpr::TOK_TOKEN:
do_spacing(first, spacing.top(), spacing.size());
PRINTF("%s", lexer.val_string());
adjust_spacing(spacing.top(), lexer.val_string());
break;
default:
abort();
}
lexer.adv();
}
PRINTF("\n");
}
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