LR(1)到LALR(1)转换应该在合并失败时停止

在LR(1)到LALR(1)转换过程中，如果遇到一个合并失败，可以选择忽略这个失败并继续进行转换，也可以选择停止转换。以下是示例代码：

// LR(1)状态转换函数 function LR1_to_LALR1() { let merged = false; do { merged = false; // 合并状态 for (let i = 0; i < lr1_states.length; i++) { for (let j = i + 1; j < lr1_states.length; j++) { let common_items = get_common_items(lr1_states[i], lr1_states[j]); if (common_items.length > 0) { let merged_state = new LALR1_State(merge_states(lr1_states[i], lr1_states[j])); if (!lalr1_states.includes(merged_state)) { lalr1_states.push(merged_state); merged = true; } } } } // 如果合并失败，选择停止转换 if (merged === false) { console.log("合并失败，转换已停止。"); break; } } while (merged === true); console.log("转换已完成。"); }