draw fireworks on pages using http://hanno-rein.de/archives/349 method.

fireworks.sty

%%% draw fireworks on pages using http://hanno-rein.de/archives/349 method.

\usepackage{eso-pic}
\usepackage{pstricks}

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texadvent24.tex

\documentclass{jsarticle}
\usepackage{fireworks}

\begin{document}
\title{\TeX\ がむかついたので実装したけど挫折してる話}
\author{k16.shikano}
\renewcommand{\today}{December 24, 2012}
\maketitle

\fireworks

いきなり私見ですが、「\TeX\ むかつく」という声の大半は、「インストールが苦痛」または「マクロが意味不明で思い通りならない」に分類できるんじゃないでしょうか。 でもまあ、便利なインストーラ付属の分かりやすい\LaTeXe\ の入門書が改訂を重ねて書店で売ってたりするのだし、これらは普通の用途においては解決策がある問題ということにしておきましょう。

インストールの壁をクリアして、ちょっと凝ったページの出力もできるようになると、 基本的な組版機能に不足はないし、数式にいたってはほぼ唯一無二だし、自作マクロでちょっとした自動化さえできるわけで、 「とにかく\TeX\ むかつく」という心境から、「いっけん意味不明な制約やなぞの挙動には目をつぶるとして \TeX\ しかないな」という心境に至る人も多いはずです。 わたし自身も、組版に関しては、だいたいそういう心境です。残念ながら \TeX\ しかない。

しかし、それでも \TeX\ には実際むかつくことがある！ それは、「\TeX\ がドキュメントシステムに向いてない」ことです。「自由すぎる」ともいえます。

ドキュメントというのは、木構造になっているべきです。 キーワードやフォント指定用語などのインライン要素から構成される章、節、段落、図、数式といったブロック要素が、根っこで一つのドキュメントへと束ねられてるようなイメージです。 散文一般とドキュメントに区別があるとしたら、この木構造が必須か否かという点かもしれません。 ドキュメントは、なんらかの木構造と一対一対応がないと、最悪、読み手によって意味が変わってしまいます。 小説ならそれでいいんですが、たとえばジェット機の整備マニュアルなんかだと、それではまずい。 だから、まっとうなドキュメントには木構造が求められるわけです。XMLとかSGMLが重宝されるゆえんです。

だからドキュメントをシステマチックに扱うには、木構造を反映できるファイル形式が不可欠です。 さらに、ドキュメントを木として編集するための仕組みもあればうれしいでしょう。

\TeX\ がドキュメントシステムに向いてないと思うのは、この木構造の観点が欠落しているからです。 もちろん、書き手が注意して執筆することで、 \TeX\ を使って木構造のドキュメントを作ることはできます。 しかし、 \TeX\ で執筆された原稿を扱う汎用の仕組みを作ろうとすると、構文解析すら無理ゲーなことに気づきます。 ドキュメントシステムの処理系を作ろうとしたら、原稿から木を作ってそれを内部表現として扱うと思うのですが、 \TeX\ の場合、原稿を書くための基本的な構文も内臓のマクロ言語によって提供されているため、原稿から木を作りたいだけなのに、原理的にはこのマクロ言語の処理系を書かないと完全なものにならない。そこで実践では「サポートする \TeX\ の構文」を決めうちすることで \TeX\ マクロ言語処理系を実装する手間は省くことになってしまい、だから世の中には「汎用の \LaTeX\ →XML コンバーター」のような仕組みが見当たらないのです。


\end{document}