「ラクラク罫線」を編集中 (節単位)

== ソースコード ==
<syntaxhighlight lang="javascript" copy>
// ruledliner.js（ラクラク罫線.js）
// 最終更新：2012/12/22

var notch = "";
var depth = 35;
var single_spc = " ";
var bouble_spc = "　";

// -- prototype関数 --
// String
// 桁揃えに使う文字。
String.prototype.spcS = single_spc;
String.prototype.spcW = bouble_spc;
// インデックス番号ｉの文字が半角であるかどうか。
String.prototype.isHan = function(i) {
	// Shift_JIS: 0x0 ～ 0x80, 0xa0 , 0xa1 ～ 0xdf , 0xfd ～ 0xff
	// Unicode : 0x0 ～ 0x80, 0xf8f0, 0xff61 ～ 0xff9f, 0xf8f1 ～ 0xf8f3
	var c = this.charCodeAt(i);
	return ((c >= 0x0 && c < 0x81) || (c == 0xf8f0) || (c >= 0xff61 && c < 0xffa0) || (c >= 0xf8f1 && c < 0xf8f4));
};
// 文字列の長さ。半角換算。
String.prototype.blength = function() {
	var blen = 0;
	for (var i = 0; i < this.length; i++) {
		(this.isHan(i)) ? blen += 1: blen += 2;
	}
	return blen;
};
// インデックス番号の変換（半角→通常）。
String.prototype.bindex2i = function(bi) {
	if (bi < 0) {
		Alert("bi < 0 in bindex2i !!");
		Quit();
	}
	var n = 0;
	for (var i = 0; i < this.length; i++) {
		if (!this.isHan(i)) {
			n++;
		}
		if (i + n >= bi) {
			return i;
		}
	}
	return bi;
};
// 文字列から指定した位置の文字を抜き出し。半角指定。
String.prototype.bcharAt = function(bi) {
	var i = this.bindex2i(bi);
	if (bi >= this.blength()) {
		i = this.length;
	}
	return this.charAt(i);
};

// 文字列を分割。半角指定。
String.prototype.bdiv2ary = function(bi) {
	var i = this.bindex2i(bi);
	return {
		front: this.substr(0, i),
		tail: this.substr(i, this.length - i)
	};
};
// 文字列の繰り返し。
String.prototype.repeat = function(n) {
	var str = this;
	var s = "";
	while (n > 0) {
		if (n & 1) {
			s += str;
		}
		n = n >> 1;
		str += str;
	}
	return s;
};
// 文字列を指定桁数まで延長。半角指定。
String.prototype.beven = function(bn) {
	switch (arguments.length) {
		case 0:
			bn = 0;
	}
	var re = new RegExp(this.spcS + "+$", "ig");
	var str = this;
	str = str.replace(re, "");
	var s = "";
	if (bn == 0) {
		s = str + this.spcS.repeat(str.blength() % 2);
	} else {
		bn += bn % 2;
		s = str + this.spcS.repeat(bn - str.blength());
	}
	var re = new RegExp(this.spcS + "{2}", "ig");
	s = s.replace(re, this.spcW);
	return s;
};

// 最長要素の長さ。半角換算。
Array.prototype.maxbLen = function() {
	var blen = 0;
	for (var i = 0; i < this.length; i++) {
		if (typeof(this[i]) != "string") {
			Alert("maxbLen!");
			Quit();
		}
		var s = this[i].blength();
		(blen > s) ? blen: blen = s;
	}
	return blen;
};


// -- 罫線を引くオブジェクト --
var TblRuler = function() {
	this.initialize.apply(this, arguments);
};
TblRuler.prototype = {
	spcS: single_spc,
	spcW: bouble_spc,
	action: "none",
	tbl: [],
	x1: 0,
	y1: 0,
	x2: 0,
	y2: 0,
	initialize: function(tblTop, tblBottom, tx, ty, bx, by, str) {
		this.tbl = str.split("\n");
		this.y1 = ty - tblTop;
		this.x1 = this.tbl[this.y1].substr(0, tx - 1).blength();
		this.y2 = by - tblTop;
		this.x2 = this.tbl[this.y2].substr(0, bx - 1).blength();
		this.tx = tx;
		this.bx = bx;
	},
	length: function() {
		return this.tbl.length;
	},
	vline: function() {
		this.action = "vline";
		var vksen = "│";

		// 選択行の事前処理。
		var l_ary = [];
		var r_ary = [];
		for (var i = this.y1; i <= this.y2; i++) {
			var ft = this.tbl[i].bdiv2ary(this.x1);
			l_ary.push(ft.front);
			r_ary.push(ft.tail);
		}
		for (var i = 0; i < r_ary.length; i++) {
			var r_aryi = r_ary[i].split(vksen);
			r_aryi[0] = r_aryi[0].beven();
			r_ary[i] = r_aryi.join(vksen);
		}
		var lenL = l_ary.maxbLen();
		var lenR = r_ary.maxbLen();

		for (var i = 0; i < this.tbl.length; i++) {
			if (i >= this.y1 && i <= this.y2) {
				this.tbl[i] = l_ary[i - this.y1].beven(lenL) + vksen + r_ary[i - this.y1];
			}
		}
	},
	vline_at_end: function() {
		this.action = "vline_at_end";

		for (var i = this.y1; i <= this.y2; i++) {
			var work = this.tbl[i].split("");
			var rend = work.pop();
			if (/[─│┌┐└┘├┤┬┴┼]/.test(rend)) {
				work.push(this.spcW + rend);
			} else {
				work.push(rend + this.spcW);
			}
			this.tbl[i] = work.join("");
		}
	},
	hline: function() {
		this.action = "hline";
		var hksen = "─";

		var s = this.tbl[this.y1].slice(tx - 1, bx - 1);
		var regK = new RegExp("[─│┌┐└┘├┤┬┴┼]", "i");
		var reg = new RegExp("[^" + this.spcW + "]+", "i");
		var mid = s.slice(1, s.length - 1);
		if (s.length >= 3 && regK.test(s.charAt(0)) && regK.test(s.charAt(s.length - 1)) && !reg.test(mid)) {
			var reg2 = new RegExp(this.spcW, "ig");
			var c = this.tbl[this.y1].split("");
			s = s.replace(reg2, hksen);
			c.splice(tx - 1, bx - tx, s);
			this.tbl[this.y1] = c.join("");
		} else {
			var xmax = 0;
			if (this.y1 >= this.tbl.length - 1) {
				xmax = this.tbl[this.y1].blength();
			} else {
				xmax = Math.max(this.tbl[this.y1].blength(), this.tbl[this.y1 + 1].blength());
			}
			var s1 = this.spcW.repeat((this.x1 + 1) / 2);
			var s2 = hksen.repeat((this.x2 - this.x1 + 1) / 2);
			var s3 = this.spcW.repeat((xmax - s1.blength() - s2.blength() + 1) / 2);
			var s = s1 + s2 + s3;
			this.tbl.splice(this.y1 + 1, 0, s);
		}
	},
	makeFrame: function() {
		this.action = "makeFrame";
		var re = new RegExp("[" + this.spcS + this.spcW + "]+$", "i");
		for (var i = 0; i < this.tbl.length; i++) {
			this.tbl[i] = this.tbl[i].replace(re, "");
		}
		var len = this.tbl.maxbLen() + this.tbl.maxbLen() % 2;
		for (var i = 0; i < this.tbl.length; i++) {
			this.tbl[i] = "│" + this.tbl[i].beven(len) + "│";
		}
		this.tbl.unshift("┌" + "─".repeat(len / 2) + "┐");
		this.tbl.push("└" + "─".repeat(len / 2) + "┘");
	},
	linkChk: function(bx, y) {
		var s = 0;
		// 上は？
		if (y >= 1) {
			var c = this.tbl[y - 1].bcharAt(bx);
			if (/[┌┐│┬├┼┤]/.test(c)) {
				s += 8;
			}
		}
		// 下は？
		if (y < this.tbl.length - 1) {
			var c = this.tbl[y + 1].bcharAt(bx);
			if (/[└┘│┴├┼┤]/.test(c)) {
				s += 4;
			}
		}
		// 左は？
		if (this.tbl[y].bindex2i(bx) >= 1) {
			var c = this.tbl[y].charAt(this.tbl[y].bindex2i(bx) - 1);
			if (/[┌└─┬┼├┴]/.test(c)) {
				s += 2;
			}
		}
		// 右は？
		if (this.tbl[y].bindex2i(bx) < this.tbl[y].length - 1) {
			var c = this.tbl[y].charAt(this.tbl[y].bindex2i(bx) + 1);
			if (/[┐┘─┬┼┤┴]/.test(c)) {
				s += 1;
			}
		}
		return s;
	},
	code2char: function(code) {
		switch (code) {
			case 0:
				return "";
			case 1:
				return "";
			case 2:
				return "";
			case 3:
				return "─"; // "  LR"
			case 4:
				return "";
			case 5:
				return "┌"; // " D R"
			case 6:
				return "┐"; // " DL" 
			case 7:
				return "┬"; // " DLR"
			case 8:
				return "";
			case 9:
				return "└"; // "U  R"
			case 10:
				return "┘"; // "U L "
			case 11:
				return "┴"; // "U LR"
			case 12:
				return "│"; // "UD  "
			case 13:
				return "├"; // "UD R"
			case 14:
				return "┤"; // "UDL "
			case 15:
				return "┼"; // "UDLR"
			default:
				return "";
		}
	},
	adjust: function() {
		this.action = "adjust";
		var work = this.tbl.slice(0);
		var re = new RegExp(this.spcS + "{2}", "ig");
		for (var y = 0; y < this.tbl.length; y++) {
			var line = this.tbl[y].replace(re, this.spcW);
			var ex = "";
			var bi = 0;
			while (bi < line.blength()) {
				var ks2 = this.code2char(this.linkChk(bi, y));
				var s = line.bcharAt(bi);
				if (/[─│┌┐└┘├┤┬┴┼　]/.test(s) && ks2.length != 0) {
					ex += ks2;
				} else {
					ex += s;
				}
				if (s.isHan()) {
					bi += 1;
				} else {
					bi += 2;
				}
			}
			work[y] = ex;
		}
		this.tbl = work.slice(0);
		var re = new RegExp("[" + this.spcS + this.spcW + "]+$", "i");
		for (var i = 0; i < this.tbl.length; i++) {
			this.tbl[i] = this.tbl[i].replace(re, "");
		}
	},
	adjust_line: function(y) {
		this.action = "adjust_line";
		var re = new RegExp(this.spcS + "{2}", "ig");
		var line = this.tbl[y].replace(re, this.spcW);
		var ex = "";
		var bi = 0;
		while (bi < line.blength()) {
			var ks2 = this.code2char(this.linkChk(bi, y));
			var s = line.bcharAt(bi);
			if (/[─│┌┐└┘├┤┬┴┼　]/.test(s) && ks2.length != 0) {
				ex += ks2;
			} else {
				ex += s;
			}
			if (s.isHan()) {
				bi += 1;
			} else {
				bi += 2;
			}
		}
		this.tbl[y] = ex;
	}
};

function ruler_action() {
	if (tx == 1 && tx == bx && by == tblTop) {
		return "makeframe";
	} else if (tx == 1 && tx == bx && ty == tblBottom) {
		return "adjust";
	} else if (tx == 1 && by == ty && ax == 1) {
		return "adjust_line";
	} else if (tx == document.GetLine(ty).length + 1) {
		return "vline_at_end";
	} else if (tx != bx && ty == by) {
		return "hline";
	}
	return "vline";
}

// --------------------
// 選択範囲の記録と伸張。
var sel = Editor.ActiveDocument.Selection;
var tx = sel.GetTopPointX(mePosLogical);
var ty = sel.GetTopPointY(mePosLogical);
var bx = sel.GetBottomPointX(mePosLogical);
var by = sel.GetBottomPointY(mePosLogical);
var ax = sel.GetActivePointX(mePosLogical);
var ay = sel.GetActivePointY(mePosLogical);


sel.SetActivePoint(mePosLogical, 1, ty, false);
sel.SetActivePoint(mePosLogical, 1, by, true);
if ((bx == 1) && (ty != by)) {
	sel.CharLeft(true, 1);
	bx = sel.GetBottomPointX(mePosLogical);
	by--;
} else {
	sel.EndOfLine(true, mePosLogical);
}

var tblTop = ty;
var tblBottom = by;
for (var i = 0; i <= depth; i++) {
	var line = document.GetLine(ty - i);
	if (line.charAt(0) === (notch) || ty - i <= 0) {
		break;
	}
	tblTop = ty - i;
}
for (var i = 0; i <= depth; i++) {
	var line = document.GetLine(by + i);
	if (line.charAt(0) === (notch) || by + i >= document.GetLines()) {
		break;
	}
	tblBottom = by + i;
}
if (ty < tblTop) {
	tblTop = ty;
}
if (by > tblBottom) {
	tblBottom = by;
}
sel.SetActivePoint(mePosLogical, 1, tblTop, false);
sel.SetActivePoint(mePosLogical, 1, tblBottom, true);
sel.EndOfLine(true, mePosLogical);

var tblruler = new TblRuler(tblTop, tblBottom, tx, ty, bx, by, document.selection.text);
switch (ruler_action()) {
	case "makeframe":
		tblruler.makeFrame();
		break;
	case "adjust":
		tblruler.adjust();
		break;
	case "adjust_line":
		tblruler.adjust_line(ty - tblTop);
		break;
	case "hline":
		tblruler.hline();
		break;
	case "vline_at_end":
		tblruler.vline_at_end();
		break;
	default:
		tblruler.vline();
}

sel.SetActivePoint(mePosLogical, 1, tblTop, false);
sel.SetActivePoint(mePosLogical, 1, tblBottom, true);
sel.EndOfLine(true, mePosLogical);
sel.Text = tblruler.tbl.join("\r\n");
sel.SetActivePoint(mePosLogical, tx, ty, false);
</syntaxhighlight>