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プリティプリントの試作

Sun 8 Dec 2013 by mskala Tags used: , , ,

今年「TeX & LaTeX Advent Calendar」に入りました。 １４日に私の書き込みを書きます。 それ前このサーバにGeSHiと言うプリティプリントソフトを備え付けています。 この書き込みはGeSHiのテスト・ポストです。

Ｃ言語でＵｎｉｃｏｄｅからＢＤＤまで翻訳。

      subrange=bits_range_bdd((low_code<0x10000?
                               0xF0900000:
                               (low_code&     0x3F)+
                               ((low_code&   0xFC0)<<2)+
                               ((low_code& 0x3F000)<<4)+
                               ((low_code&0x1C0000)<<6)+
                               0xF0808080),
                              (high_code&     0x3F)+
                              ((high_code&   0xFC0)<<2)+
                              ((high_code& 0x3F000)<<4)+
                              ((high_code&0x1C0000)<<6)+
                              0xF0808080);
 
      srx=bdd_addref(bdd_and(subrange,bdd_nithvar(25)));
      bdd_delref(subrange);
      subrange=bdd_addref(bdd_and(srx,bdd_ithvar(24)));
      bdd_delref(srx);
      srx=bdd_addref(bdd_and(subrange,bdd_nithvar(17)));
      bdd_delref(subrange);

有限状のパーサーの中で行番号とコメントがあります。

  1.             case 'H': /* half-width treated as narrow */
  2.             case 'N': /* narrow or neutral */
  3.               width=1;
  4.               break;
  5.  
  6.             case '0': /* zero-width - should only appear in user database */
  7.               width=0;
  8.               break;
  9.  
  10.             default:
  11.               /* ignore all others */
  12.               break;
  13.            }
  14.            /* FALL THROUGH */
  15.  
  16.          default:
  17.            ps=psSTOP;
  18.            break;
  19.         }

面白いね？

2 comments

*
I wonder, what is it that you are so expectantly awaiting that you are writing software to mark the time? The birth of our lord Jesus Christ? Or a just an annual gathering of your large family and extensive group of friends?
JustATroll - 2013-12-08 13:36
*
December 25th is not a major religious or secular holiday in Japanese culture and counting down to it has no special significance for most participants in this project. The point here as I understand it is to have fun exchanging Web log entries on a theme of mutual interest, in this case TeX and LaTeX.
Matt - 2013-12-08 14:24


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