shogi-player
Version:
Shogi board web components has functions for replaying, manipulating, and editing
238 lines (216 loc) • 8.2 kB
JavaScript
import XRegExp from "xregexp"
XRegExp.uninstall("namespacing")
import assert from "minimalistic-assert"
import { ParserBase } from "./parser_base.js"
import { Board } from "./board.js"
import { Piece } from "./piece.js"
import { Place } from "./place.js"
import { Location } from "./location.js"
import { SfenParser } from "./sfen_parser.js"
import { PresetInfo } from "./preset_info.js"
import { Soldier } from "./soldier.js"
import { KanjiNumber } from "./kanji_number.js"
////////////////////////////////////////////////////////////////////////////////
const REGEXP = {
header: "^(?!\\*)(?<key>.*)：\s*(?<value>.*)", // key：val
board: "\\|(?<board>.*)\\|", // | 香 桂 銀 金 玉 金 銀 桂 香|九
direct_location: "(?<direct_location>^[上下先後]手番)", // 上手番
latest_triangle: "^手数＝.*(?<latest_triangle>[▲△])", // 手数＝24 △５四歩 まで (TODO: 最終手を活用する)
comment: "^\\*(?<comment>.*)", // *コメント
hand: `^\\s*(?<number>\\d+)\\s+ # 1 ; 手数
(?<to>[１-９1-9一二三四五六七八九]+)? # 76 ; 移動先
(?<same>同)?\\s* # 同 ; 座標を書いてくれ
(?<piece>成[銀桂香]|[王玉金銀全桂圭香杏角馬飛龍竜歩と]) # 歩 ; 駒
(?<suffix>[左右直]?[寄引上]?) # 上 ; KI2っぽい表記は読み捨てる
(?<motion>不?成|打|合|生)? # 打 ; 成や打
(\\((?<origin_place>\\d+)\\))? # (77) ; 移動元`,
}
// XRegExp.union はバグっていて ?<key> を外される
const MERGED_REGEXP = XRegExp(Object.values(REGEXP).join("|"), "x")
////////////////////////////////////////////////////////////////////////////////
export class KifParser extends ParserBase {
reset() {
super.reset()
this.move_infos = []
this.comment_lines_hash = {}
this.board_lines = [] // 盤面が1行ごと入る(内部用)
this.direct_location = null // 手番の指定があればそのキー
this.hold_pieces = this.hold_pieces_empty_hash() // 持駒個数
}
get board() {
if (this.board_lines.length >= 1) {
return this.board_setup_from_board_lines()
} else {
// FIXME: KIFがSFENに依存してんのおかしいだろ
const sfen_parser = new SfenParser()
sfen_parser.raw_body = this.preset_info.sfen
sfen_parser.parse()
return sfen_parser.board
}
}
get preset_key() {
const v = this.header["手合割"]
if (v === "その他") {
return null
} else {
return v || "平手"
}
}
get preset_info() {
return PresetInfo.lookup(this.preset_key)
}
// 特別なメソッド
get base_location() {
if (this.direct_location) {
// 「上手番」
return this.direct_location
} else if (this.preset_key) {
// 「手合割：角落ち」
return Location.fetch(this.preset_info.first_location_key)
} else {
// 「手合割：その他」
return Location.fetch("black")
}
}
parse() {
let before_place = null
// 巨大な正規表現でまるごと切り分ける
this.raw_body.split(/\n/).forEach(line => {
const m = XRegExp.exec(line, MERGED_REGEXP)
if (m) {
if (m.key) {
// ヘッダー部分
const value = m.value.trim()
this.header[m.key] = value
if (m.key.match(/手の持駒/)) {
if (value === "なし") {
} else {
let s = KanjiNumber.kanji_to_number_string(value)
s = s.replace(/\s+/g, "")
XRegExp.forEach(s, XRegExp("(?<piece_char>\\D)(?<count>\\d*)"), (m2, x) => {
const piece = Piece.lookup_by_name(m2.piece_char)
let count = Number(m2.count || 1)
const location_key = m.key.match(/[上後]/) ? "white" : "black"
count += this.hold_pieces[location_key][piece.key] || 0
this.hold_pieces[location_key][piece.key] = count
})
}
}
} else if (m["comment"]) {
// コメント部分
const i = this.move_infos.length
this.comment_lines_hash[i] ??= []
this.comment_lines_hash[i].push(m["comment"])
} else if (m["board"]) {
// 盤
this.board_lines.push(m["board"])
} else if (m["direct_location"]) {
// BODにある "○手番"
this.direct_location = Location.fetch(m["direct_location"].match(/[上後]/) ? "white" : "black")
} else if (m["latest_triangle"]) {
// BODにある "手数＝24 △５四歩 まで"
this.direct_location = Location.fetch(m["latest_triangle"] === "▲" ? "white" : "black")
} else if (m["number"]) {
// 棋譜部分
const attrs = {}
attrs["location"] = this.location_by_offset(Number(m["number"]) - 1)
if (m["origin_place"]) {
attrs["origin_place"] = Place.fetch(m["origin_place"])
}
assert(m["to"] || m["same"])
if (m["to"]) {
attrs["place"] = Place.fetch(m["to"])
before_place = attrs["place"]
} else {
assert(m["same"])
assert(before_place)
attrs["place"] = before_place
}
if (m["motion"] === "成") {
attrs["promoted_trigger"] = true
}
if (m["motion"] === "打") {
attrs["drop_piece"] = Piece.lookup_by_name(m["piece"])
}
this.move_infos.push(attrs)
} else {
// # で始まる行
}
}
})
}
set move_infos(v) {
this._move_infos = v
}
get move_infos() {
return this._move_infos
}
set comment_lines_hash(v) {
this._comment_lines_hash = v
}
get comment_lines_hash() {
return this._comment_lines_hash
}
// private
board_setup_from_board_lines() {
assert(this.board_lines.length >= 1)
const board = new Board()
this.board_lines.forEach((e, y) => {
XRegExp.forEach(e, XRegExp("(?<arrow>.)(?<piece>\\S)"), (m, x) => {
if (m.piece === "・") {
} else {
const location_key = m.arrow === "v" ? "white" : "black"
let piece = Piece.lookup_by_name(m.piece)
let promoted = false
if (!piece) {
piece = Piece.lookup_by_promoted_name(m.piece)
assert(piece)
promoted = true
}
const soldier = new Soldier({
place: new Place([x, y]),
piece: piece,
promoted: promoted,
location: Location.fetch(location_key),
})
board.place_on(soldier)
}
})
})
return board
}
}
if (typeof process !== "undefined" && process.argv[1] === __filename) {
const instance = new KifParser()
// instance.raw_body = `
// # ---- Kifu for Windows V6.26 棋譜ファイル ----
// key：value
// 手数----指手---------消費時間--
// *コメント0a
// *コメント0b
// 1 ７六歩(77) ( 0:00/00:00:00)
// *コメント1a
// *コメント1b
// 2 ３四歩(33) ( 0:00/00:00:00)
// 3 投了 ( 0:00/00:00:00)
// `
instance.raw_body = `
1 ２六歩(27) ( 0:16/00:00:16)
2 ３四歩(33) ( 0:22/00:00:22)
3 ７六歩(77) ( 0:06/00:00:22)
4 ８四歩(83) ( 0:13/00:00:35)
5 ２五歩(26) ( 0:09/00:00:31)
6 ８五歩(84) ( 0:16/00:00:51)
7 ７八金(69) ( 0:04/00:00:35)
8 ３二金(41) ( 0:09/00:01:00)
9 ２四歩(25) ( 0:04/00:00:39)
10 同 歩(23) ( 0:10/00:01:10)
`
instance.parse()
// console.log(instance.board)
// console.log(instance.base_location)
// console.log(instance.hold_pieces)
console.log(instance.move_infos)
console.log(instance.comment_lines_hash)
console.log(instance.init_sfen === undefined)
}