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// line.c
// includes
#include <string.h>
#include "board.h"
#include "line.h"
#include "move.h"
#include "move_do.h"
#include "move_legal.h"
#include "san.h"
#include "util.h"
// constants
static const bool Strict = FALSE; // FALSE
static const bool UseDebug = FALSE; // FALSE
// functions
// line_is_ok()
bool line_is_ok(const move_t line[]) {
int move;
if (line == NULL) return FALSE;
while ((move = *line++) != MoveNone) {
if (!move_is_ok(move)) return FALSE;
}
return TRUE;
}
// line_clear()
void line_clear(move_t line[]) {
ASSERT(line!=NULL);
*line = MoveNone;
}
// line_copy()
void line_copy(move_t dst[], const move_t src[]) {
ASSERT(dst!=NULL);
ASSERT(src!=NULL);
ASSERT(dst!=src);
while ((*dst++ = *src++) != MoveNone)
;
}
// line_from_can()
bool line_from_can (move_t line[], const board_t * board, const char string[], int size) {
int pos;
char new_string[StringSize], *p;
int move;
board_t new_board[1];
ASSERT(line!=NULL);
ASSERT(board_is_ok(board));
ASSERT(string!=NULL);
ASSERT(size>=LineSize);
// init
pos = 0;
board_copy(new_board,board);
// loop
strcpy(new_string,string); // HACK
for (p = strtok(new_string," "); p != NULL; p = strtok(NULL," ")) {
move = move_from_can(p,new_board);
ASSERT(move!=MoveNone);
ASSERT(move_is_legal(move,new_board));
if (move == MoveNone || !move_is_legal(move,new_board)) break; // HACK: ignore illegal moves
if (pos >= size) return FALSE;
line[pos++] = move;
move_do(new_board,move);
}
if (pos >= size) return FALSE;
line[pos] = MoveNone;
return TRUE;
}
// line_to_can()
bool line_to_can(const move_t line[], const board_t * board, char string[], int size) {
board_t new_board[1];
int pos;
int move;
ASSERT(line_is_ok(line));
ASSERT(board_is_ok(board));
ASSERT(string!=NULL);
ASSERT(size>=StringSize);
// init
if (size < StringSize) return FALSE;
board_copy(new_board,board);
pos = 0;
// loop
while ((move = *line++) != MoveNone) {
if (pos != 0) {
if (pos >= size) return FALSE;
string[pos++] = ' ';
}
if (!move_to_can(move,new_board,&string[pos],size-pos)) return FALSE;
pos += strlen(&string[pos]);
move_do(new_board,move);
}
if (pos >= size) return FALSE;
string[pos] = '\0';
return TRUE;
}
// line_to_san()
bool line_to_san(const move_t line[], const board_t * board, char string[], int size) {
board_t new_board[1];
int pos;
int move;
char move_string[256];
ASSERT(line_is_ok(line));
ASSERT(board_is_ok(board));
ASSERT(string!=NULL);
ASSERT(size>=StringSize);
// init
if (size < StringSize) return FALSE;
board_copy(new_board,board);
pos = 0;
// loop
while ((move = *line++) != MoveNone) {
if (pos != 0) {
if (pos >= size) return FALSE;
string[pos++] = ' ';
}
if (!move_is_legal(move,new_board)
|| !move_to_san(move,new_board,&string[pos],size-pos)) {
if (Strict || UseDebug) {
move_to_can(move,new_board,move_string,256);
my_log("POLYGLOT ILLEGAL MOVE IN LINE %s\n",move_string);
board_disp(new_board);
}
if (Strict) my_fatal("line_to_san(): illegal move\n");
break;
}
pos += strlen(&string[pos]);
move_do(new_board,move);
}
if (pos >= size) return FALSE;
string[pos] = '\0';
return TRUE;
}
// end of line.cpp
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