/usr/share/perl5/Acme/EyeDrops.pm is in libacme-eyedrops-perl 1.62-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 | package Acme::EyeDrops;
require 5.006;
use strict;
use warnings;
use vars qw($VERSION @ISA @EXPORT_OK);
require Exporter; @ISA = qw(Exporter);
@EXPORT_OK = qw(ascii_to_sightly sightly_to_ascii
regex_print_sightly regex_eval_sightly clean_print_sightly
clean_eval_sightly regex_binmode_print_sightly
clean_binmode_print_sightly
get_eye_dir get_eye_shapes get_eye_string get_builtin_shapes
get_eye_properties get_eye_keywords find_eye_shapes
make_triangle make_siertri make_banner
border_shape invert_shape reflect_shape rotate_shape
reduce_shape expand_shape hjoin_shapes
pour_text pour_sightly sightly);
$VERSION = '1.62';
{ # This table was generated by demo/gentable.pl.
my @C = (
q Z('!'^'!')Z,q Z('('^')')Z,q Z('<'^'>')Z,q Z('>'^'=')Z,
q Z('>'^':')Z,q Z('>'^';')Z,q Z('+'^'-')Z,q Z('*'^'-')Z,
q Z('+'^'#')Z,q Z('*'^'#')Z,q Z('!'^'+')Z,q Z('!'^'*')Z,
q Z('!'^'-')Z,q Z('!'^',')Z,q Z('!'^'/')Z,q Z('!'^'.')Z,
q Z('?'^'/')Z,q Z('<'^'-')Z,q Z('-'^'?')Z,q Z('.'^'=')Z,
q Z('+'^'?')Z,q Z('*'^'?')Z,q Z('?'^')')Z,q Z('<'^'+')Z,
q Z('%'^'=')Z,q Z('&'^'?')Z,q Z('?'^'%')Z,q Z('>'^'%')Z,
q Z('&'^':')Z,q Z('<'^'!')Z,q Z('?'^'!')Z,q Z('%'^':')Z,
q Z('{'^'[')Z,q Z'!'Z,q Z'\\\\'.'"'Z,q Z'#'Z,
q Z'\\\\'.'$'Z,q Z'%'Z,q Z'&'Z,q Z"'"Z,q Z'('Z,q Z')'Z,
q Z'*'Z,q Z'+'Z,q Z','Z,q Z'-'Z,q Z'.'Z,q Z'/'Z,
q Z('^'^('`'|'.'))Z,q Z('^'^('`'|'/'))Z,q Z('^'^('`'|','))Z,
q Z('^'^('`'|'-'))Z,q Z('^'^('`'|'*'))Z,q Z('^'^('`'|'+'))Z,
q Z('^'^('`'|'('))Z,q Z('^'^('`'|')'))Z,q Z(':'&'=')Z,
q Z(';'&'=')Z,q Z':'Z,q Z';'Z,q Z'<'Z,q Z'='Z,q Z'>'Z,q Z'?'Z,
q Z'\\\\'.'@'Z,q Z('`'^'!')Z,q Z('`'^'"')Z,q Z('`'^'#')Z,
q Z('`'^'$')Z,q Z('`'^'%')Z,q Z('`'^'&')Z,q Z('`'^"'")Z,
q Z('`'^'(')Z,q Z('`'^')')Z,q Z('`'^'*')Z,q Z('`'^'+')Z,
q Z('`'^',')Z,q Z('`'^'-')Z,q Z('`'^'.')Z,q Z('`'^'/')Z,
q Z('{'^'+')Z,q Z('{'^'*')Z,q Z('{'^')')Z,q Z('{'^'(')Z,
q Z('{'^'/')Z,q Z('{'^'.')Z,q Z('{'^'-')Z,q Z('{'^',')Z,
q Z('{'^'#')Z,q Z('{'^'"')Z,q Z('{'^'!')Z,q Z'['Z,
q Z'\\\\'.'\\\\'Z,q Z']'Z,q Z'^'Z,q Z'_'Z,
q Z'`'Z,q Z('`'|'!')Z,q Z('`'|'"')Z,q Z('`'|'#')Z,
q Z('`'|'$')Z,q Z('`'|'%')Z,q Z('`'|'&')Z,q Z('`'|"'")Z,
q Z('`'|'(')Z,q Z('`'|')')Z,q Z('`'|'*')Z,q Z('`'|'+')Z,
q Z('`'|',')Z,q Z('`'|'-')Z,q Z('`'|'.')Z,q Z('`'|'/')Z,
q Z('['^'+')Z,q Z('['^'*')Z,q Z('['^')')Z,q Z('['^'(')Z,
q Z('['^'/')Z,q Z('['^'.')Z,q Z('['^'-')Z,q Z('['^',')Z,
q Z('['^'#')Z,q Z('['^'"')Z,q Z('['^'!')Z,q Z'\\\\'.'{'Z,
q Z'|'Z,q Z'\\\\'.'}'Z,q Z'~'Z,q Z('!'^'^')Z
);
push @C, map(join('.', q#'\\\\'#, $C[120],
map($C[$_], unpack('C*', sprintf('%x', $_)))), 128..255);
sub ascii_to_sightly { join '.', map($C[$_], unpack('C*', $_[0])) }
}
sub sightly_to_ascii { eval eval q#'"'.# . $_[0] . q#.'"'# }
sub regex_print_sightly {
q#''=~('('.'?'.'{'.# . ascii_to_sightly('print') . q#.'"'.# .
&ascii_to_sightly . q#.'"'.'}'.')')#;
}
sub regex_binmode_print_sightly {
q#''=~('('.'?'.'{'.# . ascii_to_sightly('binmode(STDOUT);print')
. q#.'"'.# . &ascii_to_sightly . q#.'"'.'}'.')')#;
}
sub regex_eval_sightly {
q#''=~('('.'?'.'{'.# . ascii_to_sightly('eval') . q#.'"'.# .
&ascii_to_sightly . q#.'"'.'}'.')')#;
}
sub clean_print_sightly {
qq#print eval '"'.\n\n\n# . &ascii_to_sightly . q#.'"'#;
}
sub clean_binmode_print_sightly {
qq#binmode(STDOUT);print eval '"'.\n\n\n# .
&ascii_to_sightly . q#.'"'#;
}
sub clean_eval_sightly {
qq#eval eval '"'.\n\n\n# . &ascii_to_sightly . q#.'"'#;
}
# -----------------------------------------------------------------
sub _slurp_tfile {
my $f = shift;
my $b = shift;
open my $fh, '<', $f or die "open '$f': $!";
$b and binmode($fh);
local $/; my $s = <$fh>; close($fh); $s;
}
# Poor man's properties (see also YAML, java.util.Properties).
# Return ref to property hash.
sub _get_properties {
my $f = shift;
open my $fh, '<', $f or die "open '$f': $!";
my $l; my %h;
while (defined($l = <$fh>)) {
chomp($l);
if ($l =~ s/\\$//) {
my $n = <$fh>; $n =~ s/^\s+//; $l .= $n;
redo unless eof($fh);
}
$l =~ s/^\s+//; $l =~ s/\s+$//;
next unless length($l);
next if $l =~ /^#/;
my ($k, $v) = split(/\s*:\s*/, $l, 2);
$h{$k} = $v;
}
close($fh);
return \%h;
}
sub _def_ihandler { print STDERR $_[0] }
# Return largest no. of tokens with total length less than $slen ($slen > 0).
sub _guess_ntok {
my ($rtok, $sidx, $slen, $rexact) = @_; my $tlen = 0;
for my $i ($sidx .. $sidx + $slen) {
($tlen += length($rtok->[$i])) < $slen or
return $i - $sidx + (${$rexact} = $tlen == $slen);
}
# should never get here
}
sub _guess_compact_ntok {
my ($rtok, $sidx, $slen, $rexact, $fcompact) = @_; my $tlen = 0;
for my $i ($sidx .. $sidx + $slen + $slen) {
($tlen += length($rtok->[$i]) - ($i > $sidx+1 && $rtok->[$i-1] eq '.'
&& substr($rtok->[$i], 0, 1) eq "'" && substr($rtok->[$i-2], 0, 1)
eq "'" ? (${$fcompact} = 3) : 0)) < $slen or
return $i - $sidx + ($tlen > $slen ? 0 : (${$rexact} = 1) +
($i > $sidx && $rtok->[$i] eq '.' && substr($rtok->[$i-1], 0, 1)
eq "'" && $rtok->[$i+1] =~ /^'..$/ ? (${$fcompact} = 1) : 0));
}
# should never get here
}
sub _compact_join {
my ($rtok, $sidx, $n) = @_; my $s = "";
for my $i ($sidx .. $sidx + $n - 1) {
if ($i > $sidx+1 && $rtok->[$i-1] eq '.' && substr($rtok->[$i], 0, 1)
eq "'" && substr($rtok->[$i-2], 0, 1) eq "'") {
substr($s, -2) = substr($rtok->[$i], 1); # 'a'.'b' to 'ab'
} else {
$s .= $rtok->[$i];
}
}
$s;
}
# Pour $n tokens from @{$rtok} (starting at index $sidx) into string
# of length $slen. Return string or undef if unsuccessful.
sub _pour_chunk {
my ($rtok, $sidx, $n, $slen) = @_;
my $eidx = $sidx + $n - 1; my $tlen = 0;
my $idot = my $iquote = my $i3quote = my $iparen = my $idollar = -1;
for my $i ($sidx .. $eidx) {
$tlen += length($rtok->[$i]);
if ($rtok->[$i] eq '.') { $idot = $i }
elsif ($rtok->[$i] eq '(') { $iparen = $i }
elsif (substr($rtok->[$i], 0, 1) eq '$') { $idollar = $i }
elsif ($rtok->[$i] =~ /^['"]/) {
$iquote = $i; $i3quote = $i if length($rtok->[$i]) == 3;
}
}
die "oops" if $tlen >= $slen;
my $i2 = (my $d = $slen - $tlen) >> 1;
$idot >= 0 && !($d%3) and return join("", @{$rtok}[$sidx .. $idot-1],
".''" x int($d/3), @{$rtok}[$idot .. $eidx]);
if (!($d&1) and $iquote >= 0 || $idollar >= 0) {
$iquote = $idollar if $iquote < 0;
return join("", @{$rtok}[$sidx .. $iquote-1], '(' x $i2 .
$rtok->[$iquote] . ')' x $i2, @{$rtok}[$iquote+1 .. $eidx]);
}
$i3quote >= 0 and return join("", @{$rtok}[$sidx .. $i3quote-1],
$d == 1 ? '"\\' . substr($rtok->[$i3quote], 1, 1) . '"' :
'(' x $i2 . '"\\' . substr($rtok->[$i3quote], 1, 1) . '"' .
')' x $i2, @{$rtok}[$i3quote+1 .. $eidx]);
return unless $d == 1;
$iparen >= 0 and return join("", @{$rtok}[$sidx .. $iparen-1],
'+' . $rtok->[$iparen], @{$rtok}[$iparen+1 .. $eidx]);
# ouch, can't test for eq '(' in case next chunk also adds '+'
$rtok->[$eidx] ne '=' && $rtok->[$sidx+$n] =~ /^['"]/ ?
join("", @{$rtok}[$sidx .. $eidx], '+') : undef;
}
sub _pour_compact_chunk {
my ($rtok, $sidx, $n, $slen) = @_; my @mytok;
for my $i ($sidx .. $sidx + $n - 1) {
if ($i > $sidx+1 && $rtok->[$i-1] eq '.' && substr($rtok->[$i], 0, 1)
eq "'" && substr($rtok->[$i-2], 0, 1) eq "'") {
pop(@mytok); my $qtok = pop(@mytok); # 'a'.'b' to 'ab'
push(@mytok, substr($qtok, 0, -1) . substr($rtok->[$i], 1));
} else {
push(@mytok, $rtok->[$i]);
}
}
push(@mytok, $rtok->[$sidx+$n]); # _pour_chunk checks next token
_pour_chunk(\@mytok, 0, $#mytok, $slen);
}
# Pour unsightly text $txt into shape defined by string $tlines.
sub pour_text {
my ($tlines, $txt, $gap, $tfill) = @_;
$txt =~ s/\s+//g;
my $ttlen = 0; my $txtend = length($txt);
my @tnlines = map(length() ? [map length, split/([^ ]+)/] : undef,
split(/\n/, $tlines));
for my $r (grep($_, @tnlines)) {
for my $i (0 .. $#{$r}) { $i & 1 and $ttlen += $r->[$i] }
}
my $nshape = int($txtend/$ttlen); my $rem = $txtend % $ttlen;
if ($rem || !$nshape) {
++$nshape;
$txt .= $tfill x (int(($ttlen-$rem)/length($tfill))+1)
if length($tfill);
}
my $s = ""; my $p = 0;
for (my $n = 1; 1; ++$n, $s .= "\n" x $gap) {
for my $r (@tnlines) {
if ($r) {
for my $i (0 .. $#{$r}) {
if ($i & 1) {
$s .= substr($txt, $p, $r->[$i]); $p += $r->[$i];
return "$s\n" if !length($tfill) && $p >= $txtend;
} else {
$s .= ' ' x $r->[$i];
}
}
}
$s .= "\n";
}
last if $n >= $nshape;
}
$s;
}
# Make filler code to stuff on end of program to fill last shape.
sub _make_filler {
my $fv = shift; # list reference of filler variables
my $nfv = @{$fv};
# Beware with these filler values.
# Avoid $; $" ';' (to avoid clash with " and ; in later parsing).
# END block is trouble because it is executed after this filler.
# Setting $^ or $~ (but not $:) to weird values resets $@.
# For example: $~='?'&'!'; (this looks like a Perl bug to me).
# For now, just stick with letters and numbers.
my @filleqto = (
[ q#'.'#, '^', q^'~'^ ], [ q#'@'#, '|', q^'('^ ],
[ q#')'#, '^', q^'['^ ], [ q#'`'#, '|', q^'.'^ ],
[ q#'('#, '^', q^'}'^ ], [ q#'`'#, '|', q^'!'^ ],
[ q#')'#, '^', q^'}'^ ], [ q#'*'#, '|', q^'`'^ ],
[ q#'+'#, '^', q^'_'^ ], [ q#'&'#, '|', q^'@'^ ],
[ q#'['#, '&', q^'~'^ ], [ q#','#, '^', q^'|'^ ]
);
$nfv > @filleqto and die "too many fv";
my $rem = @filleqto % $nfv;
$rem and splice(@filleqto, -$rem);
my $v = -1;
map(($fv->[++$v % $nfv], '=', @{$_}, ';'), @filleqto);
}
# Pour sightly program $prog into shape defined by string $tlines.
sub pour_sightly {
my ($tlines, $prog, $gap, $fillv, $compact, $ihandler) = @_;
$ihandler ||= \&_def_ihandler;
my $ttlen = 0;
my @tnlines = map(length() ? [map length, split/([^ ]+)/] : undef,
split(/\n/, $tlines));
for my $r (grep($_, @tnlines)) {
for my $i (0 .. $#{$r}) { $i & 1 and $ttlen += $r->[$i] }
}
my $outstr = ""; my @ptok;
if ($prog) {
if ($prog =~ /^''=~/g) {
push(@ptok, ($tlines =~ /(\S+)/ ? length($1) : 0) == 3 ?
"'?'" : "''", '=~');
} elsif ($prog =~ /(.*eval.*\n\n\n)/g) {
$outstr .= $1;
}
push(@ptok, $prog =~ /[().&|^]|'\\\\'|.../g); # ... is "'"|'.'
}
my $iendprog = @ptok;
my @filler = _make_filler(ref($fillv) ? $fillv : [ '$:', '$~', '$^' ]);
# Note: 11 is the length of a filler item, for example, $:='.'^'~';
# And there are 6 tokens in each filler item: $: = '.' ^ '~' ;
push(@ptok, 'Z', (@filler) x (int($ttlen/(11 * int(@filler / 6))) + 1));
my $sidx = 0;
for (my $nshape = 1; 1; ++$nshape, $outstr .= "\n" x $gap) {
for my $rline (@tnlines) {
unless ($rline) { $outstr .= "\n"; next }
for my $it (0 .. $#{$rline}) {
unless ($it & 1) {$outstr .= ' ' x $rline->[$it]; next }
(my $tlen = $rline->[$it]) == (my $plen = length($ptok[$sidx]))
and $outstr .= $ptok[$sidx++], next;
if ($plen > $tlen) {
$outstr .= '(' x $tlen;
splice(@ptok, $sidx+1, 0, (')') x $tlen);
$iendprog += $tlen if $sidx < $iendprog;
next;
}
my $fcompact = my $fexact = 0;
my $n = $compact ?
_guess_compact_ntok(\@ptok, $sidx, $tlen, \$fexact, \$fcompact)
: _guess_ntok(\@ptok, $sidx, $tlen, \$fexact);
if ($fexact) {
$outstr .= $fcompact ? _compact_join(\@ptok, $sidx, $n) :
join("", @ptok[$sidx .. $sidx+$n-1]);
$sidx += $n; next;
}
my $str;
--$n while $n > 0 && !defined($str = $fcompact ?
_pour_compact_chunk(\@ptok, $sidx, $n, $tlen) :
_pour_chunk(\@ptok, $sidx, $n, $tlen));
if ($n) { $outstr .= $str; $sidx += $n; next }
++$n while $n < $tlen && length($ptok[$sidx+$n]) < 2;
die "oops ($n >= $tlen)" if $n >= $tlen;
$outstr .= join("", @ptok[$sidx .. $sidx+$n-1]);
$sidx += $n;
$outstr .= '(' x (my $nleft = $tlen - $n);
splice(@ptok, $sidx+1, 0, (')') x $nleft);
$iendprog += $nleft if $sidx < $iendprog;
}
$outstr .= "\n";
}
$ihandler->("$nshape shapes completed.\n");
last if $sidx >= $iendprog;
}
my $eidx = rindex($outstr, 'Z');
substr($outstr, $eidx, 1) = ';' if $eidx >= 0;
return $outstr if $sidx == $iendprog || $sidx == $iendprog+1;
die "oops" if $eidx < 0;
ref($fillv) or return substr($outstr, 0, $eidx) . (length($fillv) ?
pour_text(substr($outstr, $eidx), "", 0, $fillv) : "\n");
(my $idx = rindex($outstr, ';')) >= 0 or return $outstr;
my @t = substr($outstr, $idx+1) =~
/[()&|^=;]|\$.|'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*"/g
or return $outstr;
my $nl = my $nr = my $ne = 0;
for my $c (@t) {
if ($c eq '(') {++$nl} elsif ($c eq ')') {++$nr}
elsif ($c eq '=') {++$ne}
}
if ($ne == 0 || $nl != $nr || $t[-1] eq '=') {
my $f = ';'; # Trouble: wipe out last bit with filler
for my $i ($idx+1 .. length($outstr)-2) {
substr($outstr, $i, 1) =~ tr/ \n// or
substr($outstr, $i, 1) = $f = $f eq '#' ? ';' : '#';
}
} elsif ($t[-1] eq '|' or $t[-1] eq '^' or $t[-1] eq '&') {
$outstr =~ s/\S(\s*)$/;$1/;
}
$outstr;
}
# -----------------------------------------------------------------
sub _border {
my ($a, $w, $c, $l, $r, $t, $b) = @_;
my $z = $c x ($w+$l+$r); my $f = $c x $l; my $g = $c x $r;
for (@{$a}) { $_ = $f . $_ . $g }
unshift(@{$a}, ($z) x $t); push(@{$a}, ($z) x $b);
}
sub border_shape {
my ($tlines, $gl, $gr, $gt, $gb, $wl, $wr, $wt, $wb) = @_;
my @a = split(/^/, $tlines, -1); chop(@a); my $m = 0;
for my $l (@a) { $m = length($l) if length($l) > $m }
for my $l (@a) { $l .= ' ' x ($m - length($l)) }
$gl || $gr || $gt || $gb and _border(\@a, $m, ' ', $gl, $gr, $gt, $gb);
$wl || $wr || $wt || $wb and _border(\@a, $m+$gl+$gr,'#',$wl,$wr,$wt,$wb);
join("\n", @a, "");
}
sub invert_shape {
my $tlines = shift;
my @a = split(/^/, $tlines, -1); chop(@a); my $m = 0;
for my $l (@a) { $m = length($l) if length($l) > $m }
for my $l (@a) { $l .= ' ' x ($m - length($l)) }
my $s = join("\n", @a, ""); $s =~ tr/ #/# /;
$s =~ s/ +$//mg; $s;
}
sub reflect_shape {
my $tlines = shift;
my @a = split(/^/, $tlines, -1); chop(@a); my $m = 0;
for my $l (@a) { $m = length($l) if length($l) > $m }
my $s = join("\n", map(scalar reverse($_ . ' ' x ($m - length)), @a), "");
$s =~ s/ +$//mg; $s;
}
sub hjoin_shapes {
my ($g, @shapes) = @_;
my $ml = 0; my @lines;
for my $s (@shapes) { my $n = $s =~ tr/\n//; $ml = $n if $n > $ml }
for my $tlines (@shapes) {
my @a = split(/^/, $tlines, -1); chop(@a); my $m = 0;
for my $l (@a) { $m = length($l) if length($l) > $m }
for my $l (@a) { $l .= ' ' x ($m - length($l) + $g) }
push(@a, (' ' x ($m + $g)) x ($ml - @a));
for my $i (0..$#a) { $lines[$i] .= $a[$i] }
}
my $s = join("\n", @lines, "");
$s =~ s/ +$//mg; $s;
}
sub reduce_shape {
my ($tlines, $f) = @_; my $i = $f++; my $s = "";
for my $l (grep(!(++$i%$f), split(/\n/, $tlines))) {
for ($i = 0; $i < length($l); $i += $f) { $s .= substr($l, $i, 1) }
$s .= "\n";
}
$s =~ s/ +$//mg; $s;
}
sub expand_shape {
my ($s, $f) = @_; my $i = ' ' x ++$f; my $j = '#' x $f;
$s =~ s/ /$i/g; $s =~ s/#/$j/g; my $t = "";
for my $l (split(/^/, $s, -1)) { $t .= $l x $f } $t;
}
# Rotate shape clockwise: 90, 180 or 270 degrees
# (other angles are left as an exercise for the reader:-)
sub rotate_shape {
my ($tlines, $degrees, $rtype, $flip) = @_;
$degrees == 180 and
return join("\n", reverse(split(/\n/, $tlines)), "");
my $t = $rtype==0 ? 2 : 1; my $inc = $rtype==1 ? 2 : 1;
my @a = split(/^/, $tlines, -1); chop(@a); my $m = 0; my $s = "";
for my $l (@a) { $m = length($l) if length($l) > $m }
for my $l (@a) { $l .= ' ' x ($m - length($l)) }
if ($degrees == 90) {
@a = reverse(@a) unless $flip;
for (my $i = 0; $i < $m; $i += $inc) {
for (@a) {$s .= substr($_, $i, 1) x $t} $s .= "\n"
}
} elsif ($degrees == 270) {
@a = reverse(@a) if $flip;
for (my $i = $m-1; $i >= 0; $i -= $inc) {
for (@a) {$s .= substr($_, $i, 1) x $t} $s .= "\n"
}
}
$s =~ s/ +$//mg; $s;
}
sub make_triangle {
my $w = shift; $w & 1 or ++$w; $w < 9 and $w = 9;
my $n = $w >> 1; my $s;
for (my $i=1;$i<=$w;$i+=2) { $s .= ' ' x $n-- . '#' x $i . "\n" }
$s;
}
sub make_siertri {
my $w = shift; $w < 3 and $w = 5; my $n = 2 ** $w; my $s;
for my $i (0 .. $n-1) {
--$n; $s .= ' ' x $n .
join('', map($n & $_ ? ' ' : '##', 0 .. $i)) . "\n";
} $s;
}
sub make_banner {
my ($w, $src) = @_;
# Linux /usr/games/banner can be used.
# CPAN Text::Banner will hopefully be enhanced so it can be used too.
my $b_exe = '/usr/games/banner';
-x $b_exe or die "'$b_exe' not available on this platform.";
my $f = $w ? "-w $w" : ""; $src =~ s/\s+/ /g; $src =~ s/ $//;
# Following characters not in /usr/games/banner character set:
# \ [ ] { } < > ^ _ | ~
# Also must escape ' from the shell.
$src =~ tr#_\\[]{}<>^|~'`#-/()()()H!T""#;
my $s = ""; my $len = length($src);
for (my $i = 0; $i < $len; $i += 512) {
my $cmd = "$b_exe $f '" . substr($src, $i, 512) . "'";
$s .= `$cmd`; my $rc = $? >> 8; $rc and die "<$cmd>: rc=$rc";
}
$s =~ s/\s+$/\n/; $s =~ s/ +$//mg;
# Remove as many leading spaces as possible.
my $m = 32000; # regex /^ {$m}/ blows up if $m > 32766
while ($s =~ /^( *)\S/mg) { $m = length($1) if length($1) < $m }
$s =~ s/^ {$m}//mg if $m; $s;
}
# -------------------------------------------------------------------------
sub _bi_all {
join "\n" x $_[0]->{Width},
map(_get_eye_string($_[0]->{EyeDir}, $_), _get_eye_shapes($_[0]->{EyeDir}))
}
sub _bi_triangle { make_triangle($_[0]->{Width}) }
sub _bi_siertri { make_siertri($_[0]->{Width}) }
sub _bi_banner { make_banner($_[0]->{Width}, $_[0]->{BannerString}) }
sub _bi_srcbanner { make_banner($_[0]->{Width}, $_[0]->{SourceString}) }
{
my %builtin_shapes = (
'all' => \&_bi_all,
'triangle' => \&_bi_triangle,
'siertri' => \&_bi_siertri,
'banner' => \&_bi_banner,
'srcbanner' => \&_bi_srcbanner
);
sub get_builtin_shapes { sort keys %builtin_shapes }
# Return built-in shape string or undef if invalid shape.
sub _get_builtin_string {
my $shape = shift;
return unless exists($builtin_shapes{$shape});
$builtin_shapes{$shape}->(shift);
}
}
sub sightly {
my $ruarg = shift; my %arg = (
Shape => "", ShapeString => "",
SourceFile => "", SourceString => "",
SourceHandle => undef, InformHandler => undef,
Width => 0, BannerString => "",
Text => 0, TextFiller => "",
Regex => 0, Compact => 0,
Print => 0, Binary => 0,
Gap => 0, Rotate => 0,
RotateType => 0, RotateFlip => 0,
Reflect => 0, Reduce => 0,
Expand => 0, Invert => 0,
TrailingSpaces => 0, RemoveNewlines => 0,
Indent => 0, BorderGap => 0,
BorderGapLeft => 0, BorderGapRight => 0,
BorderGapTop => 0, BorderGapBottom => 0,
BorderWidth => 0, BorderWidthLeft => 0,
BorderWidthRight => 0, BorderWidthTop => 0,
BorderWidthBottom => 0, TrapEvalDie => 0,
TrapWarn => 0, FillerVar => [],
EyeDir => get_eye_dir()
);
for my $k (keys %{$ruarg}) {
exists($arg{$k}) or die "invalid parameter '$k'";
$arg{$k} = $ruarg->{$k};
}
length($arg{SourceFile}) && $arg{SourceHandle} and
die "cannot specify both SourceFile and SourceHandle";
length($arg{SourceFile}) && length($arg{SourceString}) and
die "cannot specify both SourceFile and SourceString";
length($arg{SourceString}) && $arg{SourceHandle} and
die "cannot specify both SourceString and SourceHandle";
$arg{Shape} && $arg{ShapeString} and
die "cannot specify both Shape and ShapeString";
if (length($arg{SourceFile})) {
$arg{SourceString} = _slurp_tfile($arg{SourceFile}, $arg{Binary});
} elsif ($arg{SourceHandle}) {
local $/; $arg{SourceString} = readline($arg{SourceHandle});
}
my $fill = $arg{FillerVar};
if (ref($fill) && !$arg{Text}) {
# Non-rigourous check for module (package) or END block.
@{$fill} or $fill = ($arg{SourceString} =~ /^\s*END\b/m or
$arg{SourceString} =~ /^\s*package\b/m) ?
[ '$:', '$~', '$^' ] :
[ '$:', '$~', '$^', '$/', '$,', '$\\' ];
}
$arg{RemoveNewlines} and $arg{SourceString} =~ tr/\n//d;
my $shape = my $sightly = "";
length($arg{SourceString}) && !$arg{Text} and $sightly = $arg{Print} ?
( $arg{Regex} ? ( $arg{Binary} ?
regex_binmode_print_sightly($arg{SourceString}) :
regex_print_sightly($arg{SourceString}) ) :
( $arg{Binary} ?
clean_binmode_print_sightly($arg{SourceString}) :
clean_print_sightly($arg{SourceString}) ) ) :
( $arg{Regex} ? regex_eval_sightly($arg{SourceString}) :
clean_eval_sightly($arg{SourceString}) );
if ($arg{ShapeString}) {
$shape = $arg{ShapeString};
} elsif ($arg{Shape}) {
$shape = join("\n" x $arg{Gap},
map(_get_builtin_string($_, \%arg) ||
(m#[./]# ? _slurp_tfile($_) : _get_eye_string($arg{EyeDir}, $_)),
split(/,/, $arg{Shape})));
} elsif ($arg{Width}) {
die "invalid width $arg{Width} (must be > 3)"
if !$arg{Text} && $arg{Width} < 4;
$shape = '#' x $arg{Width};
}
$shape or return "use re 'eval';\n" x ($arg{Regex} == 3 || ($arg{Regex} == 1 && $] >= 5.017)) . $sightly;
$arg{Rotate} and $shape = rotate_shape($shape, $arg{Rotate},
$arg{RotateType}, $arg{RotateFlip});
$arg{Reflect} and $shape = reflect_shape($shape);
$arg{Reduce} and $shape = reduce_shape($shape, $arg{Reduce});
$arg{Expand} and $shape = expand_shape($shape, $arg{Expand});
$arg{Invert} and $shape = invert_shape($shape);
$arg{TrailingSpaces} ||
$arg{BorderGap} || $arg{BorderWidth} ||
$arg{BorderGapLeft} || $arg{BorderWidthLeft} ||
$arg{BorderGapRight} || $arg{BorderWidthRight} ||
$arg{BorderGapTop} || $arg{BorderWidthTop} ||
$arg{BorderGapBottom} || $arg{BorderWidthBottom} and
$shape = border_shape($shape,
$arg{BorderGapLeft} || $arg{BorderGap},
$arg{BorderGapRight} || $arg{BorderGap},
$arg{BorderGapTop} || $arg{BorderGap},
$arg{BorderGapBottom} || $arg{BorderGap},
$arg{BorderWidthLeft} || $arg{BorderWidth},
$arg{BorderWidthRight} || $arg{BorderWidth},
$arg{BorderWidthTop} || $arg{BorderWidth},
$arg{BorderWidthBottom} || $arg{BorderWidth});
if ($arg{Indent}) { my $s = ' ' x $arg{Indent}; $shape =~ s/^/$s/mg }
$arg{Text} and return
pour_text($shape, $arg{SourceString}, $arg{Gap}, $arg{TextFiller});
"use re 'eval';\n" x ($arg{Regex} == 3 || ($arg{Regex} == 1 && $] >= 5.017)) .
'local $SIG{__WARN__}=sub{};' x $arg{TrapWarn} .
pour_sightly($shape, $sightly, $arg{Gap}, $fill, $arg{Compact},
$arg{InformHandler}) . "\n\n\n;die \$\@ if \$\@\n" x $arg{TrapEvalDie};
}
# -------------------------------------------------------------------------
sub _get_eye_shapes {
my $d = shift;
opendir my $dh, $d or die "opendir '$d': $!";
my @e = sort map(/(.+)\.eye$/, readdir($dh));
closedir($dh); @e;
}
sub _get_eye_string { _slurp_tfile($_[0] . '/' . $_[1] . '.eye') }
sub _get_eye_properties {
my $f = $_[0] . '/' . $_[1] . '.eyp';
-f $f or return;
_get_properties($f);
}
sub _get_eye_keywords {
my $d = shift;
my %h;
SHAPE: for my $s (_get_eye_shapes($d)) {
my $p = _get_eye_properties($d, $s) or next SHAPE; # no properties
exists($p->{keywords}) or next SHAPE; # no keywords property
my @k = split(" ", $p->{keywords}) or next SHAPE; # no keywords
for my $k (@k) { push(@{$h{$k}}, $s) }
}
return \%h;
}
sub _find_eye_shapes {
my $d = shift;
@_ or die "oops, no keywords given";
my @skey = map([split/\s+OR\s+/], @_);
my @ret;
SHAPE: for my $s (_get_eye_shapes($d)) {
my $p = _get_eye_properties($d, $s) or next SHAPE; # no properties
exists($p->{keywords}) or next SHAPE; # no keywords property
my @k = split(" ", $p->{keywords}) or next SHAPE; # no keywords
my %h; @h{@k} = ();
for my $k (@skey) {
# XXX: short-circuiting List::Util::first() better than grep here.
grep(exists($h{$_}), @{$k}) or next SHAPE; # AND, all must be true
}
push(@ret, $s);
}
return @ret;
}
sub get_eye_shapes { _get_eye_shapes(get_eye_dir()) }
sub get_eye_string { _get_eye_string(get_eye_dir(), shift) }
sub get_eye_properties { _get_eye_properties(get_eye_dir(), shift) }
sub get_eye_keywords { _get_eye_keywords(get_eye_dir()) }
sub find_eye_shapes { _find_eye_shapes(get_eye_dir(), @_) }
# $eye_dir is the directory containing the .eye file shapes.
# Note: $eye_dir is only eval-hostile line in EyeDrops.pm; do not change it
# for t/19_surrounds.t and "EyeDropping EyeDrops.pm" section of doco relies
# on it. Remove ".pm" from "...Acme/EyeDrops.pm" giving directory name.
my $eye_dir = __FILE__; chop($eye_dir);chop($eye_dir);chop($eye_dir);
sub slurp_yerself { _slurp_tfile($eye_dir . '.pm') }
sub get_eye_dir { $eye_dir }
1;
__END__
=head1 NAME
Acme::EyeDrops - Visual Programming in Perl
=head1 SYNOPSIS
use Acme::EyeDrops qw(sightly);
print sightly( { Shape => 'camel',
SourceFile => 'eyesore.pl' } );
=head1 DESCRIPTION
C<Acme::EyeDrops> converts a Perl program into an equivalent one,
but without all those unsightly letters and numbers.
In a Visual Programming breakthrough, EyeDrops allows you to pour
the generated program into various shapes, such as UML diagrams,
enabling you to instantly understand how the program works just
by glancing at its new and improved visual representation.
Unlike C<Acme::Bleach> and C<Acme::Buffy>, the generated program runs
without requiring that C<Acme::EyeDrops> be installed on the target
system.
=head1 EXAMPLES
=head2 Getting Started
Suppose you have a program, F<helloworld.pl>, consisting of:
print "hello world\n";
To convert this little program into an equivalent camel-shaped one,
create F<cvt.pl> as follows:
# cvt.pl. Convert helloworld.pl into a camel shape.
use Acme::EyeDrops qw(sightly);
print sightly( { Shape => 'camel',
SourceFile => 'helloworld.pl',
Regex => 1 } );
Then run it like this:
perl cvt.pl >new.pl
After inspecting the newly created program, F<new.pl>, to verify that
it does indeed resemble a camel, run it:
perl new.pl
to confirm it behaves identically to the original F<helloworld.pl>.
Instead of using the API, as shown above, you may find it more
convenient to use the F<sightly.pl> command in the F<demo> directory:
sightly.pl -h (for help)
sightly.pl -s camel -f helloworld.pl -r 1 >new.pl
cat new.pl (should look like a camel)
perl new.pl (should print "hello world" as before)
Notice that the shape C<'camel'> is just the file F<camel.eye> in
the F<EyeDrops> sub-directory underneath where F<EyeDrops.pm> is located,
so you are free to add your own new shapes as required.
For the meaning of Regex => 1 above, see the I<Just another Perl hacker>
section below.
=head2 Making Your Programs Easier to Understand
If your boss demands a UML diagram describing your program, you
can give him this:
print sightly( { Shape => 'uml',
SourceFile => 'helloworld.pl',
Regex => 1 } );
If it is a Windows program, you can indicate that too, by
combining shapes:
print sightly( { Shape => 'uml,window',
Gap => 1,
SourceFile => 'helloworld.pl',
Regex => 1 } );
producing this improved visual representation:
''=~('('.'?'.'{'.('`'|'%').('['^'-').(
( (
( (
( (
( (
( (
'`'))))))))))|'!').('`'|',').'"'.('['^
(
( (
( (
'+'))))
)
)
.('['^')').('`'|')').('`'|'.').(('[')^
( (
( (
'/'))))).('{'^'[').'\\'.('"').( '`'|'(').('`'|'%').('`'|"\,").(
( ( ( (
( ( ( (
( ( ( (
( ( ( (
( ( ( (
'`'))))))))))))))))))))|"\,").( '`'|'/').('{'^'[').('['^"\,").(
'`'|'/').('['^')').('`'|',').('`'|'$').'\\'.'\\'
.('`'|'.').'\\'.'"'.';'.('!'^'+').'"'.'}'."\)");
$:='.'^'~';$~='@'|'(';$^=')'^'[';$/='`'|"\.";$,=
"\("^ (( '}'))
;($\) =( '`')|
"\!"; $: =')'^
"\}"; $~ ='*'|
"\`"; $^ ='+'^
"\_"; $/ ='&'|
"\@"; $, ='['&
"\~"; $\ =','^
"\|"; $: ='.'^
"\~"; $~ ='@'|
"\("; $^ =')'^
'[';$/='`'|'.';$,='('^'}';$\='`'|'!';$:=')'^'}';
($~)= (( '*'))
|'`'; $^ ='+'^
"\_"; $/ ='&'|
"\@"; $, ='['&
"\~"; $\ =','^
"\|"; $: ='.'^
"\~"; $~ ='@'|
"\("; $^ =')'^
"\["; $/ ='`'|
"\."; $, ='('^
"\}"; $\ ='`'|
'!';$:=')'^'}';$~='*'|'`';$^='+'^'_';$/='&'|'@';
$,='['&'~';$\=','^'|';$:='.'^'~';$~='@'|"\(";$^=
')'^'[';$/='`'|'.';$,='('^'}';$\='`'|'!';$:=')';
This is a Visual Programming breakthrough in that you can tell
it is a Windows program and see its UML structure too,
just by glancing at the code.
For Linux only, you can apply its F</usr/games/banner> command
to the program's source text:
print sightly( { Shape => 'srcbanner',
Width => 70,
SourceFile => 'helloworld.pl',
Regex => 1 } );
The generated program is easier to understand than the
original because its characters are bigger and easier to read.
=head2 An Abbreviated History of Perl 6
Here is a summary of the Perl 6 development effort so far:
print sightly( { Shape => 'jon,larry,damian,simon,parrot,' .
'buffy3,autrijus',
Gap => 3,
Regex => 1,
Print => 1,
Indent => 1,
SourceString => <<'END_HAIKU' } );
Coffee mug shatters
Larry Apocalyptic
Parrot not a hoax
Design, debate, sift
Prankster Piers pawky precis
Weekly light relief
Gallop Ponie bold!
Beer to gulp, Buffy astride
Orange sky surrounds
Lambda hugs camel
Precocious pup productive
Sixth pearl glorious
END_HAIKU
producing:
''=~(
'('."\?".
'{'.('['^'+'
).('['^"\)").(
'`'|')').('`'|
'.').('['^'/').
'"'.('`'^'#').(
'`'|'/').(('`')|
'&').('`'|'&').(
'`'|'%').("\`"|
'%').('{'^'[').
('`'|('-')).(
'['^"\.").(
'`'|"'").(
'{'^'[').('['^'(')
.('`'|'(').('`'|'!')
.('['^'/').('['^"\/").(
'`'|'%').('['^')').('['^"\(").(
'!'^'+').('`'^',').('`'|'!').('['^')').(
'['^')').('['^'"').('{'^'[').('`'^'!').('['^'+')
.('`'|'/').('`'|'#').('`'|'!').('`'|',').('['^'"').
('['^'+').('['^'/').('`'|')').("\`"| "\#").(
'!'^'+').('{'^'+').('`'|('!')).( '['
^')').('['^')').('`'|"\/").(
'['^'/').('{'^'[').('`'|'.')
.('`'|'/').('['^'/').(('{')^
'[').('`'|'!').('{'^'[').('`'
|'(').('`'|'/').('`'|('!')).(
'['^'#').('!'^'+').('!'^'+').(
'`'^'$').('`'|'%').('['^'(').(
'`'|')').('`'|"'").('`'|"\.").
','.('{'^'[').('`'|'$').("\`"|
'%').('`'|'"').('`'|'!').("\["^
'/').('`'|'%').','.('{'^('[')).(
'[' ^'(').('`'|')').('`'|'&').("\["^
'/').('!'^ '+').('{'^'+').('['^')').(('`')|
'!').('`'|'.' ).('`'|'+').('['^'(').('['^'/'). +(
'`'|'%').('['^')').('{'^'[').('{'^'+').(('`')| ( (
')'))).('`'|'%').('['^')').('['^'(').('{'^'[').( ( (
'['))^'+').('`'|'!').('['^',').('`'|'+').('['^'"'). (('{')^
'[').('['^'+').('['^')').('`'|'%').('`'|'#').(('`')| ')').('['^
'(').('!'^'+').('{'^',').('`'|'%').('`'|'%').('`'|'+').('`'|','
).('['^'"').('{'^'[').('`'|',').('`'|')').('`'|"'").('`'|'(').(
'['^'/').('{'^'[').('['^')').('`'|'%').('`'|',').('`'|')').('`'|
"\%").( "\`"| '&').('!'^'+').('!'^'+').('`'^"'").('`'|'!').(
(( '`'))|',').('`'|',').('`'|'/').('['^'+').('{'
^'[').('{'^'+').('`'|'/').('`'|'.').('`'|')'
).('`'|'%').('{'^'[').('`'|('"')).( "\`"|
'/').('`'|',').('`'|'$').'!'.('!'^'+'
).('`'^'"').('`'|'%').('`'|'%').("\["^
')').('{'^'[').('['^'/').('`'|'/').('{'
^'[').('`'|"'").('['^'.').('`'|',').('['^
'+').','.('{'^'[').('`'^'"').('['^"\.").(
'`'|'&').('`'|"\&").( '['^'"').('{'^'[').(
'`'|'!').('['^"\(").( '['^'/').('['^')').
('`'|')').('`'|'$').( '`'|'%').('!'^'+')
.('`'^'/').('['^
')').('`'|'!').('`'|'.'
).('`'|"'").('`'|'%').('{'^'['
).''. ('['
^'(' ).(
'`'| '+'
).+( ( '['
)^(( ( '"'
)))) .( ( '{'
)^(( ( ( '['
))) )) .( '['
^(( (( ( '('
))) ))). ( '['
^(( '.') ) ).(
'[' ^')' ) .+(
'[' ^(')')).( ( '`'
)|+ (( ( ((
'/' )) ) ))
).( ( ( ((
'[' ) )))^+
'.' ) .(
'`' | '.').('`'|'$').('['^'(').('!'^('+')).(
'!' ^'+').("\`"^ "\,").( ( ( "\`"))| (
'!' ) ) .+( '`' |+ ( ( (( '-' ))) )
).( ( ( '`'))|'"').( ( ( '`'))|'$').( (
'`' ) | ( ( (
(( '!' ) ) ) )) )
.( ( '{')^ ( ( (( (
(( ( ( ( ( ( (
(( ( '[' ))))))))))))))) ) ).('`'|'(').
+( ( ( ( (
( ( ( ( (
( ( ( '[' ) )
) ))) )) )
) ) )^'.').('`'|"'").('[' ^
( ( '('))).('{'^'[').(('`')| (
( ( '#')))).('`'|'!').('`'|'-' )
. ( "\`"| '%').('`'|',') .''. (
( ( '!') ) ^ '+' )
.( '{' ^'+').('['^')'). (((
( (
( (
( (
( ( (
( ( (
( ( (
( ( (
( ( ( (
( ( ( (
( '`' )) )
) ))))))))))) )
)))))))))))))|+
'%').('`'|'#').('`'|
'/').('`'|'#').('`'|')').
('`' |'/'
).+( '['^
'.') .''.
('[' ^'('
).+( '{'^
'[') .''.
('[' ^'+'
).+( '['
^'.' ).+(
'['^ '+').( '{'^
'[') .''. ( '['
^(( '+' ))).('[' ^ ')'
).( ( '`') |(( ( '/'
))) ) .('`'|'$'). ( '['
^(( ( ( '.'
))) ) ) .+(
'`' | ( '#'
)). ( ( '['
)^+ ( ( '/'
)) ) . (((
( (( ( ( ((
( (( ( ( ((
( '`') ))))))))) )))))) )|+
( ')' )). ((( '[' ))^ '-'
) .( (( ('`')))| "\%").( ((
( ( (( (( '!') )) ) )) ))^+ (( (
( ( '+' )))))).''. ( '{'^"\(").( (
( ( (( ( (
( (( ( ((
( '`' ) ))
) ))) ) )))
)))|')' ) .+(
"\["^ ( ( ( '#'
)))). ( ( ( '['
))^'/' ).('`'|'('). ('{'
^'['). ('['
^'+').( '`'|'%').('`'|'!'). ('['
^"\)").( '`'|',').('{'^'[').('`'| "'")
.(('`')| (( ','))).
('`'|"\/").( '['^')').('`'|')') .('`'|
'/').('['^ '.').('['^'(' ).''.
('!'^'+'). ('"').
'}'."\)");$:= '.'^"\~";
$~='@'|'(';$^=')'^'[';$/='`'|'.'
;$,='('^'}';$\='`'|'!';$:=(')')^
'}';$~='*'|'`';$^='+'^('_');$/=
'&'|'@';$,='['&'~';$\=','^'|';
$:='.'^'~';$~='@'|'(';$^=')'
^'[';$/='`'|'.';$,=('(')^
'}';$\='`'|'!';$:="\)"^
'}';$~='*'|('`');$^=
'+'^'_';$/=('&')|
'@';$,='['&
'~';$\=','^"\|";
$:='.'^'~'; $~=('@')|
'(';$^=')'^'[' ;$/='`'|'.'
;$,='('^"\}";$\= '`'|"\!";$:=
')'^'}';$~='*'|'`' ;$^='+'^"\_";
$/='&'|'@';$,='['&'~' ;$\=','^"\|";
$:='.'^'~';$~='@'|"\("; $^=')'^'[';$/
='`'|'.';$,='('^"\}";$\= '`'|'!';$:=')'
^'}';$~='*'|'`';$^='+'^'_' ;$/='&'|'@';$,
='['&'~';$\=','^'|';$:='.'^ '~';$~='@'|'(';
$^=')'^'[';$/=('`')| '.' ;$, ='('^'}'
;$\='`'|'!';$:=')' ^'}';$~
='*'|'`';$^=('+')^ '_';$/=
'&'|'@';$,='['&'~' ;($\)=
','^'|';$:='.'^'~'; $~='@'
|'(';$^=')'^'[';$/= "\`"|
'.';$,='('^"\}";$\= ( '`')
|'!';$:=')'^'}';$~ = '*'
|'`';$^='+'^'_';$/ = ((
'&'))|'@';$,="\["& ( ((
'~')));$\=','^'|'; ( ( ( ( ( ( (
$:)))))))='.'^"\~"; ( ( ( ( (
$~)))))='@'|'(';$^ =')'^ '[' ; (
( $/))='`'|'.';$, ='('^'}' ;($\) = (
( '`'))|'!';$: = (
')')^"\}"; ( $~)
= '*' | (
( ( (
( ( (
( ( (
( ( ( ( ( ( (
( ( ( ( (
( ( ( (
( (
( (
( ( '`')))))) )
) ) )))))))))))))
) ) )))))))) ;
( ( $^))='+'^'_';
( ( ( (
( ( ( (
( ( (
( ( ( ( (
( (
( (
( (
( ( (
( (
( ( ( (
$/)))))))
))))))))))))))
))))))))))='&'|"\@";
$,='['&'~';$\=','^'|';$:=
'.'^'~';$~=('@')| '(';$^=
')'^'[';$/='`'|'.';$, ='('^'}'
;$\='`'|'!';$:=')'^'}';$~='*'|'`';$^
='+'^'_';$/='&'|'@';$,='['&'~';$\="\,"^
'|';$:='.'^'~';$~='@'|'(';$^=')'^('[');$/=
'`'|'.';$,='('^'}';$\='`'|'!';$:=')'^'}';$~=
'*'|'`';$^='+'^'_';$/='&'|'@';$,='['&"\~";$\=
','^'|';$:='.'^'~';$~='@'|'(';$^=')'^ '['
;$/='`'|'.';$,='('^'}';$\='`'|'!';$:= ')'
^'}';$~='*'|'`';$^='+'^'_';$/='&'|'@'
;$,='['&'~';$\=','^'|';$:='.'^'~';$~=
'@'|'(';$^=')'^'[';$/='`'|'.';$,="\("^
'}';$\='`'|'!';$:=')'^'}';$~='*'|"\`";
$^='+'^'_';$/='&'|'@';$,='['&('~');$\=
','^'|';$:='.'^'~';$~='@'|'(';$^="\)"^
'[';$/='`'|'.';$,='('^'}';$\='`'|'!';
$:=')'^'}';$~='*'|'`';$^='+'^"\_";$/=
'&'|'@';$,='['&'~';$\=','^('|');$:=
'.'^'~';$~='@'|'(';$^=')'^"\[";$/=
'`'|'.';$,='('^'}';$\='`'|"\!";$:=
')'^'}';$~='*'|'`';$^='+'^('_');$/=
'&'|'@';$,='['&'~';$\=','^"\|";$:=
'.'^'~';$~='@'|'(';$^=')'^('[');$/=
'`'|'.';$,='('^'}';$\='`'|"\!";$:=
')'^'}';$~='*'|'`';$^='+'^"\_";$/= '&'
|'@';$,='['&'~';$\=','^'|';$:='.'^ (
'~');$~='@'|'(';$^=')'^('[');$/= '`'|
'.';$,='('^'}';$\='`'|('!');$:= ')'^'}'
;$~='*'|'`';$^='+'^'_';$/='&'| '@';$,='['&
'~';$\=','^'|';$:='.'^'~';$~= '@'|'(';$^=')'
^'[';$/='`'|"\.";$,= (( '('))^'}';$\='`'|
'!';$:=')'^('}');$~= ( '*')|'`';$^='+'^'_'
;$/='&'|'@';$,="\["& ( ( '~'));$\=','^'|';
$:='.'^'~';$~='@'|'(' ; $^=')'^'[';$/=
'`'|'.';$,='('^'}';$\ ='`'|"\!";
($:) =')'^'}';$~='*' |'`';$^
=(( '+'))^('_');$/= '&'
|+ '@';$,='['&"\~";
( $\)=','^"\|";$:=
'.'^'~';$~="\@"|
'(';$^=')'^"\[";
$/
='`'|'.'
;$,=('(')^
'}';$\="\`"|
'!' ;$:
= (
( (
')' ))
)^(( '}'
));$~ ='*'
|'`'; ( $^)=
"\+"^ '_';
$/="\&"| '@' ;($,)
= '[' & ( ( (
( ( ( ( (
( ( ( (
( '~')))))))))) )
) );$\=','^'|';$: = '.'^ '~';
( $~)='@'|'(';$^= ( ( ')'))^'[';$/= ((
( '`')))|"\.";$,= ( ( '('))^'}'; (
( $\))='`'|'!'; ( $:)=')'^'}'; $~
= '*'|('`');$^= ( ( ('+')))^ '_'; $/
= '&'|('@');$,= ( '[')&'~' ; ( $\
) =','^"\|";$:= '.' ^+ '~'; $~= ((
( '@')))|"\(";$^= ')' ^+ (( ( (( '['
) ))));$/='`'|('.');$,= (( (( '(')) ))
^ '}';$\='`'|'!';$:=')'^ (( '}'));$~ =(
'*' )|'`';$^='+'^'_';$/='&'| '@' ;$,='['& ((
'~'));$\=','^'|';$:='.'^'~'; $~ ='@' |('(');$^=
(')')^ '[';$/='`'|'.';$,='(' ^(( (( '}')))) ;($\)=
'`' |'!';$:=')'^"\}";$~= '*'|('`');$^= (( (
'+' )) )^"\_";$/= (( '&') )|'@';$, ='['
&'~' ;$\=',' ^'|';$: =( '.')^"\~"; ($~)=
'@'|'(' ;$^ =')' ^(( (( '[' )))
);( $/ )=( (( '`' )) )|'.';$,=
(( (( (( '(')) )) ))^'}'
;( ( $\) )='`' |+ '!'
;( $: )= "\)"^ '}' ;(
$~ )= (( '*'))|'`'; $^= '+'^
'_' ;( $/ )=(( '&'))| (( '@')
);( $, )= '['& '~';$\ ="\,"^
'|' ;( $: )= (( '.'))^'~';$~ =(
(( '@' )) )| (( "\("));$^=
(( ')' ) )^ (( '[')); $/ ='`'
|+ '.' ;$,= ( (( (( ((
(( (( '(') ) )) )) )
)) ))^(( ( ( (( '}'))) ))
); $\ ='`' |+ (( '!')) ;(
$: )=')'^'}' ;( ($~)) ='*' |+
(( '`'));$^ ='+'^'_';$/= "\&"| '@';
$,= (( '['))&"\~";$\= ','^ '|';$:
="\."^ '~';$~='@'|'(';$^=')'^'[';$/=
('`')| '.';$,='('^"\}";$\= '`'|'!';$:=
')'^'}' ;$~='*'|'`' ;$^='+'^ '_';$/='&'
|'@';$,= '['&'~'; $\=','^ '|';$:='.'
^'~';$~= '@'|'(' ;($^) =')'^'['
;$/='`' |"\."; ($,)= '('^'}'
;($\)= '`'| '!';$: =(')')^
"\}"; ($~)= ('*')| '`';$^='+'
^'_' ;$/=('&')| '@';$,="\["&
'~'; $\=','^'|'; $:='.'^"\~";
($~) ='@'|'(';$^ =')' ^'['
;($/) ='`'|'.';$, ='(' ^+
'}';$\ ='`'|'!';$:= ')'^'}';
$~='*'| '`';$^='+'
^'_';$/= ('&')|
'@';$,=
'['&'~'
;$\=','
^('|');$:=
'.'^'~' ;$~='@'|'(';$^
=')'^'['; $/='`'|'.';$,='('
^'}';$\='`' |'!';$:=')'^'}';$~=
'*'|"\`";$^= '+'^'_';$/='&'|"\@";
$,='['&'~';$\ =','^'|';$:='.'^"\~";
$~='@'|'('; $^=')'^'[';$/="\`"|
('.');$,= '('^'}';$\='`'|'!'
;$:="\)"^ '}';$~='*'|'`';$^
='+'^'_' ;$/='&'|'@';$,="\["&
"\~";$\= ','^'|';$:='.'^"\~";$~=
'@'|'('; $^=')'^'[';$/='`'|'.';$,=
'('^'}'; $\='`'|'!';$:=')'^'}' ;$~='*'|'`'
;($^)= '+'^'_';$/='&'|'@' ;$,='['&"\~";
($\)= ','^'|';$:="\."^ '~';$~='@'|"\(";
$^=')' ^'[';$/='`'|'.' ;$,='('^('}');$\=
('`')| '!';$:=')'^'}' ;$~="\*"| "\`";$^=
('+')^ ( '_');$/=('&')| "\@"; $,='['
&"\~"; ( ( $\)) =',' ^+ "\|";
$:='.' ^(( '~') );($~)
="\@"| '(';$^ =( ')') ^'['; $/='`'
|"\."; $,="\("^ (( '}') );$\='`'|('!');$:=
(')')^ '}' ;$~= '*'|'`';$^='+'^'_';$/
="\&"| '@'; ($,) ='['&'~';$\=','^'|';$:
="\."^ '~';$~='@'|'(' ;$^=')'^ "\[";$/=
('`')| '.';$,='('^'}' ;($\) ='`'|'!';
$:=')' ^(( '}'));$~='*'|'`'
;($^) =( '+')^'_';$/=('&')|
'@';$, = ( '[')& '~';$\=','^
'|';$: = ( ( ( '.' )))^'~';$~
="\@"| (( (( '('))));$^
=(')')^ (( ( "\[")));$/=
'`'|'.'; $, =( ( (( '('))))^'}'
;$\='`'| '!';$:=')' ^+ '}';$~=('*')|
"\`";$^= ( "\+")^ ( '_') ;$/='&'|('@');$,=
'['&"\~"; ($\) =','^'|';$:="\."^
'~';$~='@' | ( '('); $^=')'^('[');$/=
'`'|'.';$, = ('(')^ '}';$\='`'|'!';
$:=')'^'}'; ( ( ( ( $~))))= '*'|'`';$^='+'^
'_';$/='&' |'@';$, ='['&'~';$\=','
^"\|";$:= '.'^'~' ;$~='@'|'(';$^=
')'^'['; $/='`'| '.';$,='('^'}';
$\='`'| '!';$:= ')'^'}';$~='*'|
'`';$^ ="\+"^ '_';$/='&'|'@';
($,) ='[' &'~';$\=','^'|'
=head2 Just another Perl hacker
Let's get more ambitious and create a big self-printing I<JAPH>.
my $src = <<'FLAMING_OSTRICHES';
open 0;
$/ = undef;
$x = <0>;
close 0;
$x =~ tr/!-~/#/;
print $x;
FLAMING_OSTRICHES
print sightly( { Shape => 'japh',
SourceString => $src,
Regex => 1 } );
This works. However, if we change:
$x =~ tr/!-~/#/;
to:
$x =~ s/\S/#/g;
the generated program malfunctions in strange ways because
it is running inside a regular expression and Perl's regex engine
is not reentrant. In this case, we must resort to:
print sightly( { Shape => 'japh',
SourceString => $src,
Regex => 0 } );
which runs the generated sightly program via C<eval> instead.
If you want to use Regex => 1 (to eliminate I<all> alphanumerics),
ensure the program to be converted is careful with its use of
regular expressions and C<$_>.
To produce a I<JAPH> that resembles the original
I<Just another Perl hacker,> aka I<Randal L Schwartz>, try this:
print sightly( { Shape => 'merlyn',
SourceString => 'Just another Perl hacker,',
Regex => 1,
Print => 1 } );
producing:
''=~('('.'?'.'{'.('['
^'+').('['^')').('`'|')').(
'`'|'.').('['^'/').'"'.('`'^'*')
.('[' ^'.')
.('[' ^'(')
.('[' ^'/')
.('{'^ '[').(
"\`"| '!').(
'`'| '.').(
'`'| ( ( '/'))).
('[' ^ ( ( '/'))).(
'`'| ( ( ( ( '('))))).
('`'| ( ( ( ( '%'))))).
('['^ ( ( ( ( ')'))))).
('{'^ '[') .( ( (( ('{'))))^
'+'). ( '`'|'%' ).("\["^ ')').('`'
|',').('{'^ '[').('`'
|'(').('`' |"\!").(
'`'|'#').( ('`')| '+').( '`'|'%')
.('['^')') .(( ',' )). '"' .('}').
"\)");$:= ('.')^ ( "\~"); $~='@'|
('(');$^= (( ')' )) ^ (( '[' )) ;($/)=
'`'|'.'; $,='('^'}' ; $\='`'|'!' ;($:)
=(')')^ ( '}'
);($~) = '*'
|'`'; ( ( ( $^)
) )= ( ( ( '+'
) ) ) ^ ( ( ( '_'
) ) ) ; ( ( ( $/
) ) ) =
( ( ( (
( ( ( (
( '&')))))))))|'@' ; ( (
( ( ( ( ( $,
) ) ) ) ) ))
= ( (( (( ( (
( ( ( (( ( (
( ( '[')) ) )
) ) ) )
) ) ) )
) ) )
) & (
( ( (
( ( (
( (
( (
'~' ))
)))))))))
=head2 Buffy Looking in the Mirror
Because the I<sightly> encoding is not very compact, you sometimes
find yourself playing a surreal form of I<Perl Golf>, where
the winner is the one with the smallest F<f.tmp> in:
sightly.pl -r 1 -f program_to_be_converted >f.tmp
Apart from reducing the (key-)stroke count, you must avoid regexes
and strive to replace alphanumeric characters with sightly ones,
which do not require sightly encoding.
To illustrate, consider the intriguing problem of creating
I<Buffy looking in the mirror>. Let's start with F<k.pl>:
open$[;chop,($==y===c)>$-&&($-=$=)for@:=<0>;
print$"x-(y---c-$-).reverse.$/for@:
Notice that EyeDrops-generated programs, by default, contain no
trailing spaces, which complicates the above program.
Buffy looking in the mirror can now be created with:
sightly.pl -r 1 -f k.pl -s buffy2 >b.pl
cat b.pl (should show Buffy's face)
perl b.pl (should show Buffy looking in the mirror)
Drat. This requires two I<buffy2> shapes. What to do?
Well, you could use the C<TrailingSpaces> attribute
(C<-T> switch to F<sightly.pl>) to append the required
number of trailing spaces to each line, allowing you to
write a briefer F<kk.pl>:
open$%;chop,print+reverse.$/for<0>
and finally produce I<Buffy looking in the mirror> with:
sightly.pl -T -r 1 -f kk.pl -s buffy2 >bb.pl
Alternatively, the C<Compact> attribute (C<-m> switch to
F<sightly.pl>) could be used to produce a solution free
of any trailing spaces:
sightly.pl -m -r 1 -f k.pl -s buffy2 >buffy.pl
cat buffy.pl (should show Buffy's face)
perl buffy.pl (should show Buffy looking in the mirror)
producing F<buffy.pl>:
''=~('(?{'.(
'`'|'%').('['^'-'
).('`'|'!').('`'|','
).+ ( '"'
).( ( '`'
)|+ ( '/'
)). ( '['
^(( ( '+'
))) ).('`' |((
'%' ))). ( '`'
|(( '.') ) ).+
((( (( ( (((
((( ( ( (((
((( ( '\\')))
))) ) ) ) )
) )))) )))))) .'$[;' . (
( ( (( ( (
( ( ( (( ( ( (( ( ( (
( ( '`') )))) ) )
) ) ))) )
) ))) ) )
)| ( ( ( ( ((
'#' ) ) ) )))
).(('`')| ('(')).(
'`'|'/'). ('['^'+') .',(\\$'
.'=='.('[' ^'"') . '==='.+(
'`'|'#').')' . '>\\$-'
.'&&(\\$-=\\' . '$=)'.(
'`'|'&').('`' | ( '/')).(
'['^')').'\\' . '@:=<' .
('^'^(('`')| "\.")). (
'>').(';').( '!'^'+' )
.('['^'+'). ('['^')' ).('`'|
')').("\`"| "\.").( ( ('['))^
"\/").'\\$\\"'.( ( "\[")^ ( (
( ( "\#"))))). ( ( '-')) . (
( ( ('(')))).( ( ( '[')) ^ (
( '"'))).'--' . '-'. ( (
( '`'))|'#'). ( ( (
( '-')))). ( ( (
( ( '\\' ) )
) ) ) .
( ( ( (
( ( ( ( (
( ( ( ( (
( ( ( ( (
( ( ( ( (
( '$'))))))))))))))))))))))))).'-).'.('['^ ( (
( ')')))).('`'|'%').('['^'-').('`'|'%').(('[')^ (
( ')'))).('['^'(').('`'|'%').'.\\$/'.('`'|'&').( (
( '`'))|'/').('['^')').'\\@:'.('!'^'+').'"})');$:= (
( '.'))^'~';$~='@'|'(';$^=')'^'[';$/='`'|'.';$,='(' ;
This is perhaps a cleaner solution, though some people
find the plain sightly encoding more pleasing to the eye.
Showing the face upside down, rather than reflected, is more
easily solved with:
open$%;print+reverse<0>
and easier still for a self-printing shape:
open$%;print<0> # self printing
open$%;print+map{y;!-~;#;;$_}<0> # replace sightly with '#'
=head2 A Somersaulting Camel
Let's extend the Buffy example of the previous section to produce
a camel-shaped program capable of somersaulting across the screen
when run.
We start with a generator program, F<gencamel.pl>:
print sightly( { Regex => 1,
Compact => 1,
RemoveNewlines => 1,
Indent => 1,
BorderGapRight => 1,
Shape => 'camel',
SourceString => <<'END_SRC_STR' } );
$~=pop||'';open$%;
y,!-~,#,,s,(.).,$+,gs,$~&&($_=reverse)for@~=grep$|--,('')x18,<0>;
@;=map~~reverse,reverse@~;
map{system$^O=~Win?CLS:'clear';
($-=$_%3)||(--$|,map$_=reverse,@~,@;);
print$"x($=/3*abs$|*2-$-),$_,$/for$-&1?@;:@~;
sleep!$%}$%..11
END_SRC_STR
Note the use of the Compact and RemoveNewlines attributes,
necessary here to squeeze the above program into a single
camel shape.
Running this program:
perl gencamel.pl >camel.pl
produces F<camel.pl>:
''=~('(?{'.(
('`')| '%').('['^'-').
('`'|'!'). ('`'|',').'"\\$~='
.('['^'+') .('`'| '/').('['^'+').'||'.
"'"."'".';'.('`'|'/' ).('['^'+').('`'|'%').
('`'|'.').('\\$%;').( '['^'"').(',!-~,#,,').(
'['^'(').',(.).,\\' .'$+,'.('`'|"'").('['^'(')
.',\\$~&&(\\$' .'_='.('['^')').('`'|('%')).(
'['^'-').('`'| '%').('['^')').('['^'(').(('`')|
'%').')'.("\`"| '&').('`'|'/').('['^"\)").'\\@~='.(
'`'|"'").("\["^ ')').('`'|'%').('['^'+').('\\$|--,(').
"'"."'".(')').( '['^'#').('^'^('`'|'/')).(':'&'=').',<'.
('^'^('`'|'.') ).'>;\\@;='.('`'|'-').('`'|'!').('['^'+')
.'~~'.('['^')' ).('`'|'%').('['^'-').('`'|'%').('['^')').
('['^'(').('`'|'%').','.('['^')').('`'|'%').('['^'-').('`'
|'%').('['^')').('['^'(').('`'|'%').'\\@~;'.('`'|'-').('`'|
'!').('['^'+').'\\{'.('['^'(').('['^'"').('['^'(').(('[')^
'/').('`'|'%').('`'|'-').'\\$^'.('`'^'/').'=~'.('{'^"\,").(
'`'|')').('`'|'.').'?'.('`'^'#').('`'^',').('{'^'(').(':').
"'".('`'|'#').('`'|',').('`'|'%').('`'|'!').('['^')')."'".
';(\\$-=\\$_%'.('^'^('`'|'-')).')||(--\\$|,'.('`'|'-' ).(
'`'|'!').('['^'+').'\\$_='.('['^')').('`'|'%').('[' ^((
'-'))).('`'|'%').('['^')').('['^'(').('`' |('%')). ','
.'\\@~,\\@;);'.('['^'+').('['^(')')).( '`'|')' ).(
"\`"| '.').('['^'/').'\\$\\"'.("\["^ ('#')). '('
.'\\$=/'.('^'^('`'|'-')).'*'. (('`')| '!'
).("\`"| '"').('['^ "\("). '\\$|' .+
('*').( '^'^('`' |',')) .'-\\' .+
'$-),'. '\\$_,'. '\\$' .'/'. (
('`')| ('&')).( '`'| '/')
.('['^ ')').'\\' .'$' .'-'
.'&'. (('^')^( '`'| '/')
).'?' .'\\@;' .':' .''.
'\\' .'@~;' .''. ('['
^'(' ).( '`'| ',')
.''. ((( '`' ))|
'%' ).( '`' |((
'%' ))) .+( '['
^(( '+' ))) .+
(( '!')). ((
(( '\\') ))
). '$%\\}'. ((
((( '\\' ))))) .+
'$' .'%..' .''. (((
'^') )^("\`"| '/' )).(
"\^"^( ('`')|
('/'))). '"})');
I<Note: The use of a camel image in association with Perl is a
trademark of O'Reilly & Associates, Inc. Used with permission>.
You can run F<camel.pl> like this:
perl camel.pl normal forward somersaulting camel
perl camel.pl b camel somersaults backwards
perl camel.pl please do a backward somersault
same thing
You are free to add a leading C<#!/usr/bin/perl -w> line to
F<camel.pl>, so long as you also add a blank line after
this header line.
=head2 Twelve Thousand and Thirty Two Camels
In a similar way to the somersaulting camel described above,
we create a camel-shaped program capable of emitting
twelve thousand and thirty two different camels when run.
As usual, we start with a generator program, F<gencamel.pl>:
print sightly( { Regex => 1,
Compact => 1,
RemoveNewlines => 1,
BorderGap => 1,
Shape => 'camel',
SourceString => <<'END_SRC_STR' } );
$~=uc shift;$:=pop||'#';open$%;chop(@~=<0>);$~=~R&&
(@~=map{$-=$_+$_;join'',map/.{$-}(.)/,@~}$%..33);
$|--&$~=~H&&next,$~!~Q&&eval"y, ,\Q$:\E,c",$~=~I&&
eval"y, \Q$:\E,\Q$:\E ,",$~=~M&&($_=reverse),
print$~=~V?/(.).?/g:$_,$/for$~=~U?reverse@~:@~
END_SRC_STR
Running this program:
perl gencamel.pl >camel.pl
produces F<camel.pl>, which you can run like this:
perl camel.pl normal camel
perl camel.pl q quine (program prints itself)
perl camel.pl m mirror (camel looking in the mirror)
perl camel.pl i inverted camel
perl camel.pl u upside-down camel
perl camel.pl r rotated camel
perl camel.pl h horizontally-squashed camel
perl camel.pl v vertically-squashed camel
And can further combine the above options, each combination
producing a different camel, for example:
perl camel.pl uri
produces a large, bearded camel with a pony-tail, glasses,
and a tie-dyed T-shirt. :)
F<camel.pl> also accepts an optional second argument, specifying
the character to fill the camel with (default C<#>).
For example:
perl camel.pl hv small camel filled with #
perl camel.pl hv "$" small camel filled with $
Why 12,032 camels? Combining the main options q, m, i, u, r, h, v
can produce 128 different camels. And there are 94 printable
characters available for the second argument, making a total
of 128 * 94 = 12,032 camels.
=head2 Naked Arm Wrestling
The final auction at Y::E 2002 in Munich featured an epic athletic
contest which you can remember with:
use Acme::EyeDrops qw(sightly);
my $s = sightly( { Regex => 1,
Shape => 'naw',
Indent => 1,
SourceString => <<'NAKED_ARM_WRESTLING' } );
$/='';open$%;$x=<0>;$y=<0>;
substr($y,428,$%)=' AAAAARRRGGGHHH!!!';
map{system$^O=~Win?CLS:'clear';
print$_&1?$y:$x;sleep!$%+($_&1)}$%..9
NAKED_ARM_WRESTLING
$s =~ s/ +$//m;
print $s;
=head2 Baghdad Bob
Running this program:
print sightly( { Shape => 'baghdad',
Regex => 1,
Compact => 1,
RemoveNewlines => 1,
BorderGap => 1,
BorderWidthLeft => 3,
BorderWidthRight => 3,
BorderWidthTop => 2,
BorderWidthBottom => 8,
SourceString => <<'FAMOUS_COMICAL_ALI_QUOTES' } );
warn+(
"Britain is not worth an old shoe!",
"There are no American infidels in Baghdad!",
"We have them surrounded in their tanks!",
"I speak better English than this villain Bush!")[rand(4)],$/
FAMOUS_COMICAL_ALI_QUOTES
produces:
''=~('(?{'.('`'|'%').('['^'-').('`'|'!').('`'|',').'"'.('['^',').('`'|
'!').('['^')').('`'|'.').'+(\\"'.('`'^'"').('['^')').('`'|')').(('[')^
'/' ).(
'`' |'!').('`'|')' ).(
'`' |'.').('{'^'[').('`'| ')'
).( '['^'(').('{'^'[').('`'|'.' ).(
'`' |'/').('['^'/').('{'^'[').("\["^ ','
).( '`'|'/').('['^')').('['^'/').("\`"| '('
).( '{'^'[').('`'|'!').('`'|'.').('{'^'['). (((
'`' ))|'/').('`'|',').('`'|'$').("\{"^ '[' ).(
'[' ^'(').('`'|'(').('`'|'/').('`'|'%') .(( '!'
)). '\\",\\"'.('{'^'/').('`'|'(').("\`"| '%' ).(
'[' ^')').('`'|'%').('{'^'[').('`'|"\!").( '['^ ')'
).( '`'|'%').('{'^'[').('`'|'.').('`'|'/').( "\{"^ '['
).( '`'^'!').('`'|'-').('`'|'%').('['^"\)").( ('`')| ')'
).( '`'|'#').('`'|'!').('`'|'.').('{'^'[').('`'| ')').('`' |((
'.' ))).('`'|'&').('`'| ')').('`'|'$').('`'| '%'
).( '`'|',').(('[')^ '(').('{'^'['). (((
'`' ))|')').("\`"| '.').(('{')^ '['
).( '`'^('"')).( '`'|'!'). (((
'`' ))|("'")).( ('`')| '('
).( '`'|"\$").( "\`"| '!'
).( '`'|"\$"). ('!\\",\\"').( '{'^',').("\`"| '%') .+(
'{' ^('[')).( ( '`')|'(' ) .('`' |((
'!' ))).('['^'-' ) . ( ( '`')|'%').('{'^ '['
).( '['^'/') . ( ( ( '`'))| '('
).( '`'|'%') . +( ( ( ( '`'))) |((
'-' ))).('{' ^ ( ( ( '['))) ).(
'[' ^'(').( '['^'.').('[' ^')').('['^')'). +( (( '`'
))| '/'). ( ( ( '['
))^ ( ( ( ( ( '.'
))) ) ) ) . (((
'`' ) ) | ( '.'
)). ( ( ( ( ( '`'
))) ) |+ '$'). +( ( '`'
)|+ ( ( ( '%'
))) ) . (((
'`' ) ) | '$'
).( ( ( ( '{'
))) ^'[').('`' | ( ( ')'
))) . ('`'|'.').('{' ^ '['
).( ( '[') ^'/' ) . ( '`'
|(( ( ( (( ( ( '('
))) ) )) )))
.+( ( (( '`' ) ))|
'%' ).('`'|')').( ( '['
)^+ ( ')')).('{'^ ( '['
)). ( '['
^(( ( ( '/'
))) ) ).(
'`' | '!'
).( ( ( '`'
))| ( ( '.'
))) . ( '`'
|(( ( ( '+'
))) )).('['^'(' ).+
'!' .((
'\\')).'",\\"'.('`'^')').('{'^'[').('['^'(').('['^'+').('`'|'%').('`'|
'!').('`'|'+').('{'^'[').('`'|'"').('`'|'%').('['^'/').('['^'/').('`'|
'%').('['^')').('{'^'[').('`'^'%').('`'|'.').('`'|"'").('`'|',').('`'|
')').('['^'(').('`'|'(').('{'^'[').('['^'/').('`'|'(').('`'|'!').('`'|
'.').('{'^'[').('['^'/').('`'|'(').('`'|')').('['^'(').('{'^'[').('['^
'-').('`'|')').('`'|',').('`'|',').('`'|'!').('`'|')').('`'|'.').('{'^
'[').('`'^'"').('['^'.').('['^'(').('`'|'(').'!\\")['.('['^')').("\`"|
'!').('`'|'.').('`'|'$').'('.('^'^('`'|'*')).')],\\$/"})');$:='.'^'~';
=head2 99 Bottles of Beer
The web site F<http://www.99-bottles-of-beer.net/> features programs
to display the lyrics of the famous I<99 bottles of beer> song in
over 700 different computer languages.
Over the years, many different Perl solutions have been proposed.
On December 25 1998, for instance, Damian Conway suggested using his
Lingua::EN::Inflect module:
use Lingua::EN::Inflect 'inflect';
$n=shift||99;
print inflect<<BURP while $n;
NO(bottle of beer,$n) on the wall, NO(bottle of beer,$n)!
Take one down, pass it around,
NO(bottle of beer,@{[--$n]}) on the wall.
BURP
During May 2003, the two leading Perl golfers of that era, Ton Hospel and
Mtv Europe, produced the shortest known Perl solution:
sub
b{[@b=(abs||No,bottle."s"x!!++$_,of,beer),on,the,wall]}print
"@{+b},\n@b,\nTake one down, pass it around,\n@{+b}.\n"
for-pop||-99..-1
Some years later I noticed that this program can be further shortened
by changing C<"s"> to C<'s'> and embedding the C<sub> inside the first
C<@{}> block like so:
@{sub b{[@b=(abs||No,bottle.'s'x!!++$_,of,beer),on,the,wall]}b}
This saves a stroke because the first C<+b> in the original is replaced
by a bald C<b>.
Elegant though this solution is, they may have felt a little gobsmacked
when the world's leading I<HQ9+> golfer, Casey West, uncorked a one
stroke solution (C<9>) in that surreal programming language.
To produce a solution shaped like a row of beer bottles, run this:
use Acme::EyeDrops qw(sightly get_eye_string hjoin_shapes);
my $ninety_nine = <<'BURP';
$==pop||99;--$=;sub
_{($;=($=||No)." bottle"."s"x!!--$=." of beer")." on the wall"}
print+_,", $;!
Take one down, pass it around,
",_,"!
"while++$=
BURP
chop($ninety_nine); $ninety_nine =~ s/\nprint/print/;
print sightly( { Regex => 1,
Compact => 1,
ShapeString => hjoin_shapes(2,
(get_eye_string('bottle2'))x6),
SourceString => $ninety_nine } );
producing:
''=~( '(?{' .('`' |'%') .('[' ^'-')
.('`' |'!') .('`' |',') .'"'. '\\$'
.'==' .('[' ^'+') .('`' |'/') .('['
^'+') .'||' .(';' &'=') .(';' &'=')
.';-' .'-'. '\\$' .'=;' .('[' ^'(')
.('[' ^'.') .('`' |'"') .('!' ^'+')
.'_\\{' .'(\\$' .';=('. '\\$=|' ."\|".( '`'^'.'
).(('`')| '/').').' .'\\"'.+( '{'^'['). ('`'|'"') .('`'|'/'
).('['^'/') .('['^'/'). ('`'|',').( '`'|('%')). '\\".\\"'.( '['^('(')).
'\\"'.('['^ '#').'!!--' .'\\$=.\\"' .('{'^'['). ('`'|'/').( '`'|"\&").(
'{'^"\[").( '`'|"\"").( '`'|"\%").( '`'|"\%").( '['^(')')). '\\").\\"'.
('{'^'[').( '`'|"\/").( '`'|"\.").( '{'^"\[").( '['^"\/").( '`'|"\(").(
'`'|"\%").( '{'^"\[").( '['^"\,").( '`'|"\!").( '`'|"\,").( '`'|(',')).
'\\"\\}'.+( '['^"\+").( '['^"\)").( '`'|"\)").( '`'|"\.").( '['^('/')).
'+_,\\",'.( '{'^('[')). ('\\$;!').( '!'^"\+").( '{'^"\/").( '`'|"\!").(
'`'|"\+").( '`'|"\%").( '{'^"\[").( '`'|"\/").( '`'|"\.").( '`'|"\%").(
'{'^"\[").( '`'|"\$").( '`'|"\/").( '['^"\,").( '`'|('.')). ','.(('{')^
'[').("\["^ '+').("\`"| '!').("\["^ '(').("\["^ '(').("\{"^ '[').("\`"|
')').("\["^ '/').("\{"^ '[').("\`"| '!').("\["^ ')').("\`"| '/').("\["^
'.').("\`"| '.').("\`"| '$')."\,".( '!'^('+')). '\\",_,\\"' .'!'.("\!"^
'+').("\!"^ '+').'\\"'. ('['^',').( '`'|"\(").( '`'|"\)").( '`'|"\,").(
'`'|('%')). '++\\$="})' );$:=('.')^ '~';$~='@'| '(';$^=')'^ '[';$/='`';
A larger single beer bottle shape can be produced with:
print sightly( { Regex => 1,
Compact => 1,
Shape => 'bottle',
SourceString => $ninety_nine } );
while the canonical solution, shaped like 99 bottles of beer, can be
generated with:
print sightly( { Regex => 1,
ShapeString => join("\n", (hjoin_shapes(3,
(get_eye_string('bottle2'))x3))x33),
SourceString => $ninety_nine } );
=head2 Sierpinski Triangles
A simple and concise Sierpinski triangle generator, F<siertri.pl>, is:
#!perl -l
$x=2**pop;print$"x--$x,map$x&$_?$"x2:"/\\",0..$y++while$x
which was posted by Mtv Europe to golf@perl.org on 14-sep-2002
as a one stroke improvement on Adam Antonik's original program.
Running:
perl siertri.pl 4
displays a Sierpinski triangle with 2**4 lines.
Proclaiming Mtv's program as the shortest (in Acme::EyeDrops 1.13)
only served to provoke Adam Antonik and Eugene van der Pijll into
shortening it by exploiting a hard C<$^F>, as shown in some of the
examples below:
-l print$"x--$x,map$x&$_?$"x2:"/\\",0..$_-1for 1..($x=2**pop)
-l $x=2**pop;print$"x--$x,map$x&$_?$"x2:"/\\",0..$y++while$x
-l $^F**=pop;print$"x--$^F,map$^F&$_?$"x2:"/\\",0..$y++while$^F
-lX061 print$"x--$/,map$/&$_?$"x2:"/\\",0..$y++while$/<<=pop
-l print$"x--$^F,map$^F&$_?$"x2:"/\\",0..$y++while$^F*=2**pop
-l $_=$"x2**pop;$_="$'/\\",print,s/(?<=\\)../$&^KI^D5/egwhile/^ /
An interesting obfuscated Sierpinski triangle generator is:
#!/usr/bin/perl -l
s--@{[(gE^Ge)=~/[^g^e]/g]}[g^e]x((!!+~~g^e^g^e)<<pop).!gE-ge,
s-[^ge^ge]-s,,,,s,@{[(g^';').(e^'?')]},(G^'/').(E^'|')^Ge,ge,
print,s,(?<=/[^g^e])[^g^e][^g^e],$&^(G^'/').(E^'|')^gE,ge-ge
As an alternative obfu, you can produce a Sierpinski triangle-shaped
Sierpinski triangle generator based on Mtv's program like this:
print sightly( { Regex => 1,
Compact => 1,
RemoveNewlines => 1,
Indent => 1,
BorderGap => 1,
BorderWidth => 2,
# For 'siertri' built-in shape, Width=>5 means:
# height is 2**5 lines
# width is 2 * 2**5 characters
Width => 5,
Shape => 'siertri',
SourceString => <<'END_SRC_STR' } );
$-=!$%<<(pop||4);print$"x$-,map($-&$_?' ':'/\\',$%..$.++),$/while$---
END_SRC_STR
producing:
''=~('(?{'.('`'|'%').('['^'-').('`'|'!').('`'|"\,").'"\\$-=!\\$%<<('.(
'['^'+').('`'|'/').('['^'+').'||'.('^'^('`'|'*')).');'.('['^'+').('['^
(( ((
(( (( ((
(( ')') ))
)) )) )) ))
)) .(('`')| ((
(( (( (( ((
(( ')') )))) ))
)) )) )) .( (( ((
(( '`'))))))|'.').( ((
(( (( (( ((
(( '[') )))) ))
)) )) )^ (( (( ((
(( '/'))))) )))).''. ((
(( (( (( (( (( ((
(( '\\' )))) )))) )))) ))
)) .+ (( (( (( (( (( (( (( ((
(( '$')))))))))))))))))).'\\"'.('[' ^+
(( (( (( ((
(( '#') )))) ))
)) )) .+ (( (( ((
(( '\\')))) )))).'$' .+
(( (( (( (( (( ((
(( '-') )))) )))) )))) ).
(( (( (( (( (( (( (( (( (( ((
(( ','))))))))))))) ))))))))).("\`"| ((
(( (( (( (( (( ((
(( '-') )))) )))) )))) ))
)) .( (( (( (( (( (( (( (( ((
(( '`'))))) )))))))) )))))|(( '!'))).( ((
(( (( (( (( (( (( (( (( (( ((
(( '[') )))) )))) )))) )))) )))) )))^ '+') .+
(( (( (( (( (( (( (( (( (( (( (( (( (( (( (( (( (( ((
(( '(')))))))))))))))))))))))))))))))))))))).'\\$-&\\$_?'."'".('{'^ ((
(( ((
'['))))))).('{'^'[')."'".':'."'".'/\\\\\\\\'."'".',\\$%..\\$.++),\\$/'
.('['^',').('`'|'(').('`'|')').('`'|',').('`'|'%').'\\$---"})');$:='.'
=head2 Dueling Dingos
During the TPR02 Perl Golf tournament, I<`/anick> composed a poem
describing his experience, entitled I<Dueling Dingos>.
You can produce a program that emits his moving poem like this:
print sightly( { Shape => 'yanick3',
Regex => 1,
Print => 1,
SourceString => <<'END_DINGO' } );
#!/usr/bin/perl
# Dueling Dingos v1.1, by Yanick Champoux (9/4/2002)
#
# Inspired by the TPR(0,2) Perl Golf contest.
# Name haven't been changed, since the involved
# parties could hardly be labelled as 'innocent',
# and are way far too gone to protect anyway.
wait until localtime > @April[0]; # wait until the first of April
BEGIN{}
study and seek FOR, $some, $inspiration;
write $stuff;
$score = 145; # no good;
delete $stuff { I_can_do_without }
and do $more_stuff;
delete $even{more_stuff};
reverse $engineer; study; eval $strategy and redo;
write, write, write;
delete $_{'!'}, delete $"{"@!"}, delete $@{'*'}; # must stop cursing
use less 'characters', $durnit;
read THE, $current, $solution;
not 2, $bad;
delete $white_spaces{''} until $program == glob;
for( $all, my @troubles )
{
unlink 1, $character;
}
ARGH:
$must, not $despair;
$I->can(do{ $it });
study new Idea;
m/mmmm/m... do{able};
kill $chickens;
'ask', $Nanabozo, 2, bless $me, 'with more inspiration';
$so, close; warn $mailing_list and alarm $Andrew;
$toil until my $solution < /-\ndrew's
/;
GOT_IT:
send $solution, $to, ref;
$brain, shutdown I,'m dead';
goto sleep;
wait; $till, $the, $day, $after;
readline last $scoreboard;
grep $all, stat;
read THE, $stats, $again until $it_sinks_in;
$Andrew,'s score' lt $mine;
$eyeball, pop @o
;
END_DINGO
The generated program, being 2577 lines long, is not reproduced here.
To generate a shorter program summarising I<`/anick>'s TPR02 anguish:
print sightly( { Shape => 'yanick,eye,mosquito,coffee',
Gap => 3,
Regex => 1,
Print => 1,
SourceString => <<'END_SUFFERING' } );
My head is hurting, my right eye feels like it's going to pop
like a mosquito drinking from an expresso addict with high
blood pressure, I want to crawl somewhere damp and dark and
quiet and I consider never to touch a keyboard again.
END_SUFFERING
producing:
''=~('('.'?'.'{'.(
'['^'+').('['^')').('`'|
')').('`'|'.').('['^'/').'"'
.('`'^'-').('['^'"').('{'^'[').(
'`'|'(').('`'|'%').('`'|'!').("\`"|
'$').('{'^'[').('`'|')').('['^('(')).(
'{'^'[').('`'|'(').('['^'.').('['^"\)").(
'['^'/').('`'|')').('`'|'.').('`'|"'").','.
('{'^'[').('`'|'-').('['^'"').('{'^'[').('['^
')').('`'|')').('`'|"'").('`'|'(').('['^'/').(
'{'^'[').('`'|'%').('['^'"').('`'|'%').('{'^'['
).('`'|'&').('`'|'%').('`'|'%').('`'|',').(('[')^
'(').('{'^'[').('`'|',').('`'|')').('`'|'+').("\`"|
'%').('{'^'[').('`'|')'). ('['^ ('/')).
"'".('['^'(').('{'^'['). ("\`"|
"'").('`'|'/').('`'|')' ).''.
('`'|'.').('`'|"'").('{' ^'[')
.('[' ^'/').('`'|'/').(('{')^ '[').
('['^'+' ).('`'|'/').('['^'+'). ('!'^
'+').('`'| ','). ('`'|')').('`' |'+')
.('`'|'%') .''. ('{'^"\[").( "\`"|
'!').('{'^ ( "\[")).( "\`"|
'-').('`'| ( '/')).( "\["^
'(').('['^ ( '*' )).
('['^'.' ) .+( ( ( ( ( ( (
'`')))) ) )| ( ( (
')'))) ) . ( (
"\[")^ ( (
'/'))) . ("\`"| '/'). (
('{')^ '[' ).('`' |'$') .
("\["^ ( ( (
')'))) ) . (
('`')| ( ')')) . (
('`')| ( '.')) . (
('`')| ( ( (
'+')))) . +( ( (
('`')))| ( (( ( (
')')))))). ( (( ( (
'`'))))|'.'). ( (( ( (
'`'))))|"'").('{'^('[')).( (( (
'`')))|'&').('['^')').("\`"| (( (
'/')))).('`'|'-').('{'^'[').( '`'|
'!').('`'|'.').('{'^'[').("\`"| (
'%')).('['^'#').('['^'+').("\["^ (
')')).('`'|'%').('['^'(').('[' ^'(').(
'`'|'/').('{'^'[').('`'|'!').
('`'|'$').('`'|'$').('`'|')'
).('`'|'#').('['
^ '/').('{'^'[').(('[')^ (
( ','))).('`'|')').('['^'/') .
( '`'|'(').('{'^'[').('`'|'(').( (
( '`'))|')').('`'|"'").('`'|'(').( (
( '!'))^'+').('`'|'"').('`'|(',')).( (
( '`'))|'/').('`'|'/').('`'|('$')).( (
( '{'))^'[').('['^'+').('['^')').('`'| (
( '%'))).('['^'(').('['^'(').('['^'.') .
( '['^')').('`'|'%').','.('{'^('[')).( (
( '`'))^')').('{'^'[').('['^',').('`'| (
( '!'))).('`'|'.').('['^'/').('{'^'[') .
( '['^'/').('`'|'/').('{'^'[').('`'| (
( '#'))).('['^')').('`'|'!').(('[')^ (
( ','))).('`'|',').('{'^'[').('['^ (
( '('))).('`'|'/').('`'|('-')).( (
( '`'))|'%').('['^',').('`'| (
( '('))).('`'|'%').('['^ (
')')).('`'|'%').
+( ((
'{')) ^ (
"\[")).( ( (
'`'))|'$' ) . ( (
'`')|'!').( ( ( ( (
'`'))))|'-') . ( ( (
'['))^'+').( ( ( ( (
'{'))))^'[') . ( ( (
'`'))|'!').( ( ( ( (
'`'))))|'.' ) . ( (
'`')|'$' ).('{'^'[' ) . ( (
'`')|'$').('`'| ('!')).( '['^ ')' ) .
('`'|'+').('{'^'[') .('`'|'!').('`'| (
'.')).('`'|'$').('!'^'+').('['^"\*").( (
'[')^'.').('`'|')').('`'|'%').('['^'/'
).('{'^'[').('`'|'!') .('`'|'.').
('`'|('$')).( '{'^('[')).(
'`'^')'
).( '{'
^+ ( ( (
(( ( ( (
(( ( ( (
(( ( ( (
(( ( ( (
'[') ) ) )
)) ) ) ) )
) ) ) )
) ) ) )
) ) ) )
) ) . (
( ( ( (
( ( ( (
( ( ( (
( ( ( (
'`'))))
))))))
)))))
)|'#'
).''.
('`'|
'/').('`'|'.').('['^'(').('`'|')').(('`')| '$').(
'`'|'%').('['^')').('{'^'[').('`'|('.')).( '`'|'%').
('['^'-').('`'|'%').('['^')').('{'^'[').('['^ '/'
).('`'|'/').('{'^'[').('['^'/').('`'|'/').( '['
^'.').('`'|'#').('`'|'(').('{'^'[').("\`"| '!'
).('{'^'[').('`'|'+').('`'|'%').('['^'"' ).(
'`'|'"').('`'|'/').('`'|'!').('['^')').( '`'|
'$').('{'^'[').('`'|'!').('`'|("'")).( '`'|
'!').('`'|')').('`'|'.').'.'.(('!')^ '+')
.'"'.'}'.')');$:='.'^'~';$~='@'|'(';$^=
')'^'[';$/='`'|'.';$,='('^'}';$\='`'
|'!';$:=')'^'}';$~='*'|'`';$^=
'+'^'_';$/='&'|('@');$,=
'['&'~';$\=','^'|'
=head2 Error Handling
The C<sightly> function returns a properly shaped program string;
there is no error return. If something is badly wrong, C<die> is called.
So if you are calling C<sightly> in an environment where it's
unacceptable to die, be sure to wrap the C<sightly> call in
an C<eval> block. For example:
eval {
$prog = sightly( { Shape => 'invalid-shape',
SourceFile => 'eyesore.pl',
InformHandler => sub {} } );
};
if ($@) { warn "sightly died: $@\n" }
=head2 EyeDropping EyeDrops.pm
To illustrate EyeDropping a non-trivial module, we convert F<EyeDrops.pm>
itself into a I<bunch o' camels>, via the following generator program,
F<mkeye.pl>:
use Acme::EyeDrops qw(sightly);
# Slurp EyeDrops.pm into $orig string.
my $orig = Acme::EyeDrops::slurp_yerself();
# Split $orig into the source ($src) and the pod ($doc).
my ($src, $doc) = split(/\n1;\n/, $orig, 2);
# Remove the line containing $eye_dir = __FILE__ ...
# because this line confuses eval.
$src =~ s/^(my \$eye_dir\b.*)$//m;
# Generate the new sightly version of EyeDrops.pm.
print $1, sightly( { Regex => 0,
Compact => 1,
TrapEvalDie => 1,
FillerVar => ';#',
Shape => 'camel',
Gap => 1,
SourceString => $src } ),
";\n1;\n", $doc;
Running this program:
perl mkeye.pl >m.tmp
produces F<m.tmp>, which can be copied over the top of the original
F<EyeDrops.pm> in the Acme directory. Though the new I<bunch o' camels>
version passes the regression test suite, it's about 4 times slower
than the original.
Notice that we used Regex => 0 (since EyeDrops.pm uses many regular
expressions), TrapEvalDie => 1 (since EyeDrops.pm calls the C<die>
function) and FillerVar => ';#' (to avoid possible warnings due to
unused variables).
Notice too that the only known I<eval-hostile> line in EyeDrops.pm:
my $eye_dir = __FILE__; ...
was extracted and inserted at the top of the new file.
=head2 Encoding Binary Files
But wait, there's more. You can encode binary files too.
print sightly( { Shape => 'camel,mongers',
SourceFile => 'some_binary_file',
Binary => 1,
Print => 1,
Gap => 3 } );
This is prettier than I<uuencode/uudecode>.
To encode:
sightly.pl -g3 -bps camel,mongers -f some_binary_file >eyesore
To decode:
perl eyesore >f.tmp
To verify it worked:
cmp f.tmp some_binary_file
=head2 Victoria Bra, Secret Tango
''=~('(?{'.('['^'+').
('['^')').('`'|')').('`'|'.'
).('['^'/').'"'.('`'^'!').("\`"|
'.').('{'^'[').('`'|'/').('['^')').(
'`'|'!').('`'|'.').('`'|"'").('`'|'%').
'-'.('`'|',').('`'|'/').('['^'-').('`'|')'
).('`'|'.').('`'|"'").('{'^'[').('{'^'+')
.( '`'|'%').('['^')').('`'|',').('{'^'[').
("\`"^ '%').('['^'.').('['^')').('`'|"\/").
'-'.(('`')| '(').('`'|'!').('`'|"\#").(
'`'|"\+").( '`'|'%').('['^')').('{'^'['
).('`'|'!' ).('`'|'.').('`'|('$')).(
'{'^'['). ('`'|'-').('`'|('/')).(
'`'|'$').( '`'|'%').('['^')').(
'`'|'.'). ('{'^'['
).(('`')| "\!").(
'['^')'). ("\["^
'/').('`' |')').
('['^'(') .( ('[')^
( ('/'))).( (( '!'))
^ ('+')). '"}'
.')') ;$:
= '.'^ ((
'~' ));( (
( $~ )))=( (
(( ((
( '@' ) ) )
) ) ))| ( (( '(')
) ) ; ( ( (
( ( ( ( $^)
) ) ) ) ))= ( (
( ( ( ( (
( ( (
( ( (
( (
( ( (
( ( (
( ( ( (
( (( ( ( ( (
')' ))) )
) )))) )
))))))) ))
) ))))))))))))^+ (
('['));#;# ;
# ;#;# ;
# ;
# ;
# ; #
; # ;
#;#;#;#;#
On 15 August 2003, Perl/Parrot Euro-hacker and modern artist
Leon Brocard (pictured above) marched into a secluded
aranciate-blessed, orange-walled room at MoMA and tossed
a black Victoria's Secret bra (pictured below) into
the air, thereby creating a brilliant contemporary
site-specific art exhibit.
''=~('(?' .'{'.('['
^+ (( (( ((
(( (( (( ((
(( (( ( ((
(( (( (( ((
(( (( (( ((
(( (( (( (
(( (( (( ((
(( (( ( (
(( ( (( ((
( (( (( ((
( (( (( ((
( ( (( ((
( (( (( ((
(( ( (( (
(( (( ( ((
(( (( (( '+'
)))) ) )) ))))
))))) )) )) ))))))
))))))) )) )) )))))))
))))))))) )) )) )))))))))
))))))))))))) )))))))))))))
))))))))))))) ))))))).("\["^
')').('`'|')'). ('`'|'.').("\["^
'/').'"'.('`'^'"'). ('`'|',').('`'|'!'
).('`'|'#').('`'|'+') .('{'^'[').('{'^'-').(
'`'|')').('`'|'#').("\["^ '/').('`'|'/').('['^')').(
'`'|')').('`'|'!')."'".('[' ^'(').('{'^'[').('['^('(')).(
'`'|'%').('`'|'#').('['^')').('`'|'%').('['^'/').('{'^'[').
('`'|'"').('['^')').('`'|'!').('{'^'[').('`'|'$').(('`')|
'/').('`'|'.').('`'|'!').('['^'/').('`'|'%').('`'|'$').
('{'^'[').('`'|"\"").( '['^'"').('{'^"\[").(
'`'^'(').(('`')^ '&').('`'^'"').
('!'^'+') .('"})'))
The bra, donated by Elaine -HFB- Ashton, was bought by the artist
expressly for this artwork at the YAPC::Europe 2003 auction.
An interpretation of Brocard's modern masterpiece is given below:
Victoria Bra, Secret Tango (2003)
L. Brocard 1976-
This, the third work in Brocard's acclaimed "Naranja" sequence,
explodes the theme of semantic [a]chromatic aspects of aranciata
visual perception, first explored in his celebrated "Buffy" series,
and fully explores the concept of supporting relationships, which
were touched on in his earlier works. The site's central artifact
is a stark reminder of the lack of support in contemporary
relationships, with the jumbled juxtaposition of its two cups,
indicative of being discarded in a hurry, symbolizing the excessive
rapidity and tautness of modern life. As always with Brocard, it is
vital to consider the intertextuality of the title of the work, in
order to deconstruct the surface meaning of the work itself and
penetrate, as it were, to the kernel of the work's "meaning", if
such a concept is still relevant in the present context. Consider,
for example, the word "Victoria": does it express the moniker of the
bra's former occupant or merely the state or district in which she
was born? And what of "Secret Tango"? Is it, in the context of the
universe that is the present work, merely indicative of the site's
location and visual perception, or does it suggest the bra's former
resident once furtively enjoyed a rhythmic dance of long gliding
steps and sudden pauses with the artist? The viewer will no doubt
at this point recall that the word "tango" rhymes with "mango" and
thereby grasp the semantic thrust of the work's title. However, the
installation itself has even more to reveal when the particularly
observant viewer speculates on the site's central device being
strapped to its current owner's chiseled torso.
This work is extremely fragile. Please do not touch.
=head2 Love Birds
My Dark Tunnels teammate Taffy is devoted to, and firmly believes in,
a love calculator web site where you type in two names and it reports
your love compatibility.
Accordingly, the love compatibility of our entire team was calculated,
and found to be disappointingly low, with one notable exception.
Taffy and Muss recorded an astonishingly high love compatibility
of ninety nine percent, the highest ever recorded!
As a tribute to their affectionate and touching bromance, I wrote this program:
use Acme::EyeDrops qw(sightly get_eye_string hjoin_shapes);
print sightly( { ShapeString => hjoin_shapes(3, (get_eye_string('heart2'))x2),
SourceString => "Muss and Taffy have 99% Love Compatibility\n",
Regex => 1,
Print => 1 } );
to generate:
''=~( "\(". "\?". '{'.(
'['^'+'). ('['^')') .('`'|')' ).(('`')|
'.').('['^'/' ).'"'.(('`')^ '-').('['^'.' ).('['^'(').(
'['^'(').("\{"^ '[').('`'|'!'). ('`'|'.').('`'| '$').('{'^'[').
('{'^'/').('`'|'!').('`'|'&').( '`'|'&').('['^'"').('{'^"\[").(
'`'|'(').('`'|'!').('['^'-'). ('`'|'%').('{'^'[').(';'&'=')
.(';'&'=').'%'.('{'^"\[").( '`'^',').('`'|'/').('['^'-'
).('`'|'%').('{'^('[')).( '`'^'#').('`'|'/').("\`"|
'-').('['^'+').('`'|'!' ).('['^'/').('`'|')').(
'`'|'"').('`'|')'). ('`'|',').('`'|')')
.('['^'/').('[' ^'"').('!'^'+')
.'"'.('}'). ')');$:='.'
^'~';$~ =('@')|
"\("; ;")";
;#; ;#;
; ;
By the way, this is the same heart shape that Perl Monk Falkkin used
to successfully propose to his girlfriend Kristen in August 2004.
=head2 Buffy Goes to the Cricket
Buffy fans might like to rotate her letters:
print sightly( { Shape => 'buffy',
Rotate => 0, # try 270, 90 and 180
RotateType => 1, # try 0, 1, 2
SourceFile => 'helloworld.pl',
Regex => 1 } );
or have her ride a pony:
print sightly( { Shape => 'buffy3,buffy4,riding,a,pony',
SourceString => "This is how Catherine the ".
"Great died.\n",
Gap => 2,
Regex => 1,
Print => 1 } );
while cricket fans might create a reduced, inverted shape with:
print sightly( { Shape => 'cricket',
Reduce => 1,
Invert => 1,
BorderWidth => 1,
SourceFile => 'helloworld.pl',
Regex => 1 } );
producing:
''=~('('.'?'.'{'.('`'|('%')).(
'['^"\-").( '`'|'!').('`'|','
).'"'.('[' ^'+').('['^')').(
'`'|')'). ('`'|'.').('['^'/'
).("\{"^ '[').'\\'.'"'.('`'|
"\(").( (( '`'))|'%').('`'|
',') .( '`'|',').("\`"|
'/' ).( '{'^'[').("\["^
(( ',') )).('`'|"\/").(
( (( '[')))^')').(
(( ( '`')))|',').(
'`' | '$').'\\'.''.
'\\' .('`'|"\.").
'\\'. (( '"'))."\;".(
'!'^"\+"). '"'.'}'.')')
;$:=('.')^ '~';$~="\@"|
'(';$^=')' ^'[';$/='`'|
('.');$,= '('^'}';$\=
'`'|'!'; $:=')'^'}'
;$~='*' |"\`";$^=
'+' ^+ ( '_');$/=
'&'| '@'; $,='['&
'~'; $\=',' ^"\|";
($:)= ('.')^ "\~";
$~='@'| "\("; ($^)
=')'^'[';$/ =('`')| '.'
;$,='('^'}' ;$\=('`')| (
'!');$:=')' ^'}';$~='*'| ((
'`'));$^='+'^'_';$/='&'|'@';#;
=head2 Snowflakes
The C<Text> and C<TextFiller> attributes (C<-t>/C<-u> switches
to F<sightly.pl>) are handy when you simply want to pour
some I<unsightly> text into a shape.
To illustrate, consider an entry in the I<Cam.pm> 2002 Christmas
programming contest, F<snowing.pl>:
$_=q~vZvZ&%('$&"'"&(&"&$&"'"&$Z$#$$$#$%$&"'"&(&#
%$&"'"&#Z#$$$#%#%$%$%$%(%%%#%$%$%#Z"%*#$%$%$%$%(%%%#%$%$
%#Z"%,($%$%$%(%%%#%$%$%#Z"%*%"%$%$%$%(%%%#%$%$%#Z#%%"#%#%
$%$%$%$##&#%$%$%$%#Z$&""$%"&$%$%$%#%"%"&%%$%$%#Z%&%&#
%"'"'"'###%*'"'"'"ZT%?ZT%?ZS'>Zv~;
s;\s;;g;
$;='@,=map{$.=$";join"",map((($.^=O)x(-33+ord)),/./g),$/}split+Z;
s/./(rand)<.2?"o":$"/egfor@;=((5x84).$/)x30;map{
system$^O=~W?CLS:"clear";print@;;splice@;,-$_,2,pop@,;
@;=($/,@;);sleep!$%}2..17';
$;=~s;\s;;g;eval$;
The rules of this contest state that the program source code must fit
precisely into the provided snowflake shape. To comply, you can pour
the above program into the required shape with:
sightly.pl -s snow -f snowing.pl -t -u# -n1 >snowflake.pl
or equivalently (using the API instead of F<sightly.pl>):
print sightly( { Shape => 'snow',
SourceFile => 'snowing.pl',
Text => 1,
TextFiller => '#',
Indent => 1 } );
producing a valid entry, F<snowflake.pl>:
$_= q~v
ZvZ&%(' $&"'"&(
&"& $&"' "&$Z$#$$$#$%$& "'"& (&#
%$&"'"&#Z#$$ $#%# %$%$%$%(%%%#
%$%$%#Z"%*#$ %$%$ %$%(%%%#%$%$
%# Z"%, ($% $% $%( %%%# %$
%$% #Z" %*%" %$ %$%$ %(% %%#
%$%$%# Z#%%"#%#%$ %$ %$%$##&#%$ %$%$%#
Z$ &""$%"&$%$%$%#%"%"&%%$%$%#Z%&% &#
%"'"'"'###%*'"'"'"ZT%?ZT%?ZS'>Zv~;s;\s;;g;$;='@,=map
{$.= $";join"" ,map((($ .^=O)x(- 33+ord)), /./g
),$ /}split +Z;s/. /(rand )<.2?"o ":$
"/eg for@;=((5 x84).$/) x30;map{ system$^O =~W?
CLS:"clear";print@;;splice@;,-$_,2,pop@,;@;=($/,@;);
sl eep!$%}2..17';$;=~s;\s;;g;eval $;
###### ########## ## ########## ######
### ### #### ## #### ### ###
## #### ### ## ### #### ##
############ #### ############
############ #### ############
### #### ############## #### ###
####### #######
### ###
Running F<snowflake.pl> produces a pretty C<cam.pm> snow-scape.
The leftover space at the bottom could be used to add a snowman:
$_= q~v
ZvZ&%(' $&"'"&(
&"& $&"' "&$Z$#$$$#$%$& "'"& (&#
%$&"'"&#Z#$$ $#%# %$%$%$%(%%%#
%$%$%#Z"%*#$ %$%$ %$%(%%%#%$%$
%# Z"%, ($% $% $%( %%%# %$
%$% #Z" %*%" %$ %$%$ %(% %%#
%$%$%# Z#%%"#%#%$ %$ %$%$##&#%$ %$%$%#
Z$ &""$%"&$%$%$%#%"%"&%%$%$%#Z%&% &#
%"'"'"'###%*'"'"'"ZT%?ZT%?ZS'>Zv~;s;\s;;g;$~=q~ZZZJ_
#_ZH /'\\ZG|#o #o#|ZG|$ <%|ZH\\" \\!_!_!/" /ZG/
)\\ ZF/+\\Z E|-|ZE |-|ZE| -|ZF\\+ /ZG
\\)/ ~;;@x=@,= +map{$.= $";;join "",map((( $.^=
O)x(-33+ord)),/./g)}split+Z;$~=~s~\s~~g;;s;.;(rand)<
.2 ?"o":$";egxfor@;=(5x84)x30;map {#
system $^O=~W?CLS :+ "clear";;; ;print
$_. $/, ,for $_ -18? @;: ###
(( map{ $|= 1; ;;; join ""
,map($|--?$" x(-3 *11+ord):$_,
/./g)}split+ Z,$~ ),@x);splice
@;, -$_, 2,pop@,;@;=("" ,@;) ;;;
;sleep! $%}+2..
18# /-\
=head1 REFERENCE
=head2 Sightly Encoding
There are 32 characters in the sightly character set:
! " # $ % & ' ( ) * + , - . / (33-47)
: ; < = > ? @ (58-64)
[ \ ] ^ _ ` (91-96)
{ | } ~ (123-126)
A I<sightly string> consists only of characters drawn from
this set.
The C<ascii_to_sightly> function converts an ASCII string
(0-255) to a sightly string; the C<sightly_to_ascii> function
does the reverse.
=head2 Function Reference
=over 4
=item ascii_to_sightly STRING
Given an ascii string STRING, returns a sightly string.
=item sightly_to_ascii STRING
Given a sightly string STRING, returns an ascii string.
=item regex_print_sightly STRING
Given an ascii string STRING, returns a sightly-encoded Perl
program with a print statement embedded in a regular expression.
When run, the program will print STRING.
=item regex_eval_sightly STRING
Given a Perl program in ascii string STRING, returns an
equivalent sightly-encoded Perl program using an eval
statement embedded in a regular expression.
=item clean_print_sightly STRING
Given an ascii string STRING, returns a sightly-encoded Perl
program with a print statement executed via eval.
When run, the program will print STRING.
=item clean_eval_sightly STRING
Given a Perl program in ascii string STRING, returns an
equivalent sightly-encoded Perl program using an eval
statement executed via eval.
=item regex_binmode_print_sightly STRING
Given an ascii string STRING, returns a sightly-encoded Perl
program with a binmode(STDOUT) and a print statement embedded
in a regular expression. When run, the program will print STRING.
Note that STRING may contain any character in the range 0-255.
This function is used to sightly-encode binary files.
This function is dodgy because regexs don't seem to like
binary zeros; use C<clean_binmode_print_sightly> instead.
=item clean_binmode_print_sightly STRING
Given an ascii string STRING, returns a sightly-encoded Perl
program with a binmode(STDOUT) and a print statement executed
via eval. When run, the program will print STRING.
Note that STRING may contain any character in the range 0-255.
This function is used to sightly-encode binary files.
=item get_builtin_shapes
Returns a list of the built-in shape names.
=item get_eye_dir
Returns the directory containing the F<.eye> file shapes.
This is the F<EyeDrops> sub-directory underneath
where F<EyeDrops.pm> is located.
=item get_eye_shapes
Returns a list of the I<eye> shapes in ascii-betical order.
An eye shape is just a file with a F<.eye> extension residing
in the F<get_eye_dir> directory.
=item get_eye_keywords
Returns a hash reference keyed by keyword, with the
value being the list of shapes containing the keyword.
=item find_eye_shapes KEYWORDLIST
Returns a list of the I<eye> shapes in ascii-betical order
that contain all keywords in KEYWORDLIST.
The keywords in KEYWORDLIST are implicitly AND'ed together.
Additionally, you may use OR inside any KEYWORDLIST element.
If this is unclear, see the examples in "Shape Properties"
section below.
=item get_eye_string SHAPENAME
Given a .eye SHAPENAME, returns the shape string.
=item get_eye_properties SHAPENAME
Given a .eye SHAPENAME, returns a hash reference of
the shape properties or undef if the shape has no
properties.
=item slurp_yerself
Returns a string containing the contents of F<EyeDrops.pm>.
=item make_triangle WIDTH
Returns a triangle shaped string of WIDTH characters.
=item make_siertri WIDTH
Returns a Sierpinski triangle shaped string containing 2**WIDTH lines.
=item make_banner WIDTH STRING
Linux only. Returns a banner of STRING, using the Linux command
C</usr/games/banner -w WIDTH>.
=item border_shape SHAPESTRING GAP_LEFT GAP_RIGHT GAP_TOP GAP_BOTTOM
WIDTH_LEFT WIDTH_RIGHT WIDTH_TOP WIDTH_BOTTOM
Put a border around a shape.
=item invert_shape SHAPESTRING
Invert a shape.
=item reflect_shape SHAPESTRING
Reflect a shape.
=item reduce_shape SHAPESTRING FACT
Reduce the size of a shape by a factor of FACT.
=item expand_shape SHAPESTRING FACT
Expand the size of a shape by a factor of FACT.
=item rotate_shape SHAPESTRING DEGREES RTYPE FLIP
Rotate a shape clockwise thru 90, 180 or 270 degrees.
RTYPE=0 big rotated shape,
RTYPE=1 small rotated shape,
RTYPE=2 squashed rotated shape.
FLIP=1 to flip (reflect) shape in addition to rotating it.
RTYPE and FLIP do not apply to 180 degrees.
=item hjoin_shapes GAP SHAPESTRINGLIST
Join the shapes specified by SHAPESTRINGLIST horizontally with
GAP spaces between each shape.
=item pour_text SHAPESTRING TEXTSTRING GAP FILLTEXT
Given a shape string SHAPESTRING, a string TEXTSTRING, and a GAP
between successive shapes, returns a properly shaped string.
That is, pour TEXTSTRING into SHAPESTRING.
FILLTEXT (typically '#') is text to be used as a filler for any
leftover part of the shape (if not set, don't fill in leftovers).
=item pour_sightly SHAPESTRING PROGSTRING GAP RFILLVAR COMPACT IH
Given a shape string SHAPESTRING, a sightly-encoded program
string PROGSTRING, and a GAP between successive shapes,
returns a properly shaped program string.
That is, pour PROGSTRING into SHAPESTRING.
RFILLVAR is either a reference to an array of filler variables
or, alternatively, a string to fill the leftover of the last
shape with. Common filler strings are C<''> for no filler at all,
or C<'#'> or C<';'> or C<';#'>.
A filler variable is a valid Perl variable consisting
of two characters: C<$> and a punctuation character.
For example, RFILLVAR = C<[ '$:', '$^', '$~' ]>.
Do not use C<$;> or C<$"> or C<$_> as filler variables.
If COMPACT is 1, use compact sightly encoding,
if 0 use plain sightly encoding.
If IH (inform handler) is undef, prints status of what it is
doing to STDERR; you can override this by providing a subroutine
reference taking a single inform string argument. To shut it up,
set IH to C<sub {}>.
=item sightly HASHREF
Given a hash reference, HASHREF, describing various attributes,
returns a properly shaped program string.
There is no error return; if something is badly wrong, C<die> is
called -- so wrap the call to C<sightly> in an eval block if you
can't afford to die.
The attributes that HASHREF may contain are:
Shape Describes the shape you want.
First, a built-in shape is looked for.
Next, a 'eye' shape (.eye file in the
get_eye_dir() directory unless overridden
by the EyeDir attribute) is looked for.
Finally, a file name is looked for.
ShapeString Describes the shape you want.
This time you specify a shape string.
SourceFile The source file name to convert.
SourceHandle Specify a file handle instead of a file name.
SourceString Specify a string instead of a file name.
BannerString String to use with built-in Shape 'banner'.
Regex Regex can take the following values:
0: do not embed source program in a regex
If Regex is positive, embed the program in a regex and:
1: add a leading "use re 'eval';" for Perl 5.18+ only
2: do not add a leading "use re 'eval';"
3: add a leading "use re 'eval';"
Do not set this flag when converting complex programs.
Compact Boolean. If set, use compact sightly encoding.
Print Boolean. If set, use a print statement instead
of the default eval statement. Set this flag
when converting text files (not programs).
Binary Boolean. Set if encoding a binary file.
Text Boolean. Set if pouring unsightly text.
TextFiller Filler string used with Text attribute.
For example, TextFiller => '#'.
Gap The number of lines between successive shapes.
Rotate Rotate the shape clockwise 90, 180 or 270 degrees.
RotateType 0 = big rotated shape,
1 = small rotated shape,
2 = squashed rotated shape.
RotateFlip Boolean. Set if want to flip (reflect) the shape
in addition to rotating it.
Reflect Boolean. Reflect the shape.
Reduce Reduce the size of the shape.
Expand Expand the size of the shape.
Invert Boolean. Invert the shape.
Indent Indent the shape. The number of spaces to indent.
TrailingSpaces Boolean. Ensure all lines of the shape are of equal
length, adding trailing spaces if required.
RemoveNewlines Boolean. Remove all newlines from the source before
conversion.
BorderGap Put a border around the shape. Gap between border
and the shape.
BorderGapLeft,BorderGapRight,BorderGapTop,BorderGapBottom
You can override BorderGap with one or more from
the above.
BorderWidth Put a border around the shape. Width of border.
BorderWidthLeft,BorderWidthRight,BorderWidthTop,BorderWidthBottom
You can override BorderWidth with one or more from
the above.
Width Ignored for .eye file shapes. For built-in shapes,
interpreted appropriately for the shape, typically the
shape width in characters. If no shape is specified,
a rectangular block of Width characters is generated.
EyeDir Normally .eye files are got from the EyeDrops
directory underneath where EyeDrops.pm is located.
You can override that by specifying a directory
containing the .eye shape files.
InformHandler By default, sightly prints status of what it is
doing to STDERR; you can override this by providing
a subroutine reference taking a single inform string
argument. To shut it up, set to sub {}.
TrapEvalDie Boolean.
Add closing 'die $@ if $@' to generated program.
When an eval code block calls the die function,
the program does not die; instead the die string
is returned to eval in $@. Using this flag allows
you to convert programs that call die.
TrapWarn Boolean.
Add leading 'local $SIG{__WARN__}=sub{};' to
generated program. This shuts up some warnings.
Use this option if generated program emits
'No such signal: SIGHUP at ...' when run with
warnings enabled.
FillerVar Reference to a list of 'filler variables'.
A filler variable is a Perl variable consisting
of two characters: $ and a punctuation character.
For example, FillerVar => [ '$:', '$^' ].
Do not use $; or $" or $_ as filler variables.
Alternatively, you may set this to '' if you don't
want any filler, or to a string (e.g. '#' or ';'
or ';#') to use instead of filler variables to
fill the leftover part of the last shape with.
=back
=head2 Specifying a Shape
When you specify a shape like this:
sightly( { Shape => 'fred' ...
first a built-in C<fred> shape is looked for, then EyeDrops looks
for the file F<fred.eye> in the F<get_eye_dir> directory.
If you specify a C<'/'> or C<'.'> in the Shape attribute, a file
with that name is looked for instead, for example:
sightly( { Shape => '/tmp/fred.eye' ...
Finally, you may specify a shape with a string, for example:
my $shapestr = <<'FLAMING_OSTRICHES';
#####
#######################
FLAMING_OSTRICHES
sightly ( { ShapeString => $shapestr ...
If you specify a shape without a source file:
print sightly( { Shape => 'camel' } );
a I<no-op> filler is used to fill the shape.
If you specify a source file without a shape:
print sightly( { SourceFile => 'helloworld.pl' } );
a shapeless sightly string without any spaces or newlines is
generated. You can break this string into fixed width lines
via the Width attribute:
print sightly( { SourceFile => 'helloworld.pl',
Width => 40 } );
Generally, you should specify the Width attribute of I<built-in>
shapes. Notice that the Width attribute is ignored for F<.eye>
file shapes.
=head2 Shape Reference
The I<built-in> shapes are:
banner Linux banner command (/usr/games/banner -w Width)
of text in BannerString attribute
srcbanner Linux banner command (/usr/games/banner -w Width)
of source text
siertri A Sierpinski triangle (2**Width lines)
triangle A triangle (width Width characters)
all A shape consisting of all .eye shapes joined together
(Width blank lines between each shape)
The F<.eye> file shapes distributed with this version of EyeDrops are:
a Horizontal banner of "a"
acme Perl/Parrot/Ponie Euro-hacker and modern artist who likes
the colour orange and enjoys having his bra-strap twanged
adrianh Perl qa expert
alien An alien (rumoured to be Ton Hospel, from the
Roswell archives circa 1974)
alpaca Lama pacos, from South America, with long shaggy hair
and related to the llama
autrijus The father of Pugs
baghdad Baghdad Bob aka Comical Ali
beer Beer glass designed by Matthew Byng-Maddick for the
cam.pm Beerfestival Perl Programming Contest 2002
bighorn Ovis canadensis (bighorn sheep) found in the Rocky Mountains
bleach Vertical banner of "use Acme::Bleach;"
bottle A bottle of beer
bottle2 Abbreviated version of shape bottle
bottle3 A bottle of champagne with a champagne glass
bra A bra
buffy Vertical banner of "Buffy"
buffy2 Buffy's angelic face
buffy3 Buffy riding a pony
buffy4 Horizontal banner of "Buffy"
camel Dromedary (Camelus dromedarius, one hump)
camel2 Another dromedary (from use.perl.org)
camel3 London.pm's bactrian camel at London zoo
campm Horizontal banner of "cam.pm"
candle A Christmas candle
china1 Chinese characters, roughly translated as
"God is added a year of seniority; human is added a
year of age, Spring fills the universe; luck and
happiness fills the family"
coffee A cup of coffee
cricket Australia are world champions in this game
damian The Acme namespace is all his fault
dan The father of parrot
debian Debian logo (contributed by Richard Hartmann)
dipsy Teletubbies Dipsy (also london.pm infobot name)
eugene Champion Perl golfer, Drs Eugene van der Pijll
of Utrecht, Holland
eye An eye
flag_canada Canada's flag, contributed by `/anick
gelly Featured speaker at every session of Y::E 2003, Paris
golfer A golfer hitting a one iron
halloween A witch riding a broomstick
heart A heart shape contributed by `/anick
heart2 A heart shape modelled on one by Falkkin
hipowls A pair of hip owls
japh JAPHs were invented by Randal L Schwartz in 1988
jon Kick-started the Perl 6 development effort by smashing
a standard-issue white coffee mug against a hotel wall
jon_oxer Linux Australia bigwig (contributed by Paul Fenwick)
kangaroo A kangaroo
kansai_pm Kansai.pm's mascot (Tiger with Perl characters)
contributed by Takanori KAWAI (Japanese)
kermit Kermit the frog
koaladile A cross between a koala and a crocodile
larry Wall, Larry (as opposed to Russell Wall who is
Wall, Russ)
larry2 Caricature of Larry contributed by Ryan King
llama Llamas are so closely related to camels they can
breed with them (their progeny are called camas)
london Haiku "A Day in The Life of a London Perl Monger"
map_australia Map of Australia
map_italy Map of Italy
map_japan Map of Japan
map_uk Map of United Kingdom and Ireland
map_world1 World globe, Asian view
map_world2 World globe, African view
map_world3 World globe, American view
merlyn Just another Perl hacker, aka Randal L Schwartz
mongers Perl Mongers logo
moose A moose
moosecamel A moose and a camel (modelled after http://irclog.perlgeek.de)
mosquito A mosquito
music A musical symbol
naw Naked Arm Wrestling (Y::E 2002, Munich)
opera Opera browser logo (contributed by Cosimo)
panda A panda designed by Yanni Ellen Liu
parrot Originally an April fool's joke, the joke was that
it was not a joke
pgolf Perl Golf logo (inspired by `/anick)
pony Horizontal banner of "Pony"
pony2 Picture of a Pony
pugs Horizontal banner of "Pugs"
pugs2 Picture of a Pugs dog
riding Horizontal banner of "riding"
rose A rose
santa Santa Claus playing golf
santa2 Santa Claus carrying presents
saturn The planet Saturn
schwern is my bitch
schwern2 Shape schwern without the banner
simon The inventor of parrot
smiley A smiley face
smiley2 Pulling a face
smiley3 A sad face
smiley4 Another sad face
snow Snowflake designed by Matthew Byng-Maddick for the
cam.pm Christmas Perl Programming Contest 2002
spider A spider (tarantula)
spoon A wooden spoon
thumbsup A thumbs up shape modelled on one by Jiun
tonick Pictorial representation of a golf contest between Ton
Hospel and `/anick; colourful but not very suspenseful
tpr Vertical banner of "The Perl Review"
uml A UML diagram
undies A pair of underpants
window A window
writing_perl Perl in camel-style by Takanori KAWAI (Japanese)
yanick Caricature of `/anick's noggin
yanick2 Uttered by `/anick during TPR02
yanick3 Pictorial version of yanick2
yanick4 Abbreviated version of shape yanick
It is easy to create your own shapes. For some ideas on shapes,
point your search engine at I<Ascii Art> or I<Clip Art>.
If you generate some nice shapes, please send them in so they
can be included in future versions of EyeDrops.
=head2 Shape Properties
All the F<.eye> shape files have a corresponding F<.eyp>
shape property file, specifying the shape's properties.
Currently, the allowed shape properties are:
name
nick
description
cpanid
author
authorcpanid
source
keywords
where valid keywords are:
face
person
perlhacker
animal
object
planet
map
flag
sport
underwear
hbanner
vbanner
logo
debian
opera
To give an example of how shape properties might be used,
to find all shapes that depict just the faces of perl hackers:
use Acme::EyeDrops qw(find_eye_shapes);
my @perlhackers = find_eye_shapes('face',
'person',
'perlhacker');
Note that there is an implicit AND between each keyword;
that is, the above code finds all shapes with face AND
person AND perlhacker keywords.
Additionally, you may use OR in any argument, for example:
my @perlhackers = find_eye_shapes('face',
'person OR animal',
'perlhacker');
finds all shapes matching face AND (person OR animal)
AND perlhacker.
Instead of using the API, as shown above, you may also use
the F<findshapes.pl> command in the F<demo> directory:
findshapes.pl -h (for help)
findshapes.pl -v face person perlhacker
The last example displays the faces and properties of all
perl hackers.
Please note that these shape properties are experimental and
may change in future A::E releases.
=head1 BUGS
A really diabolical shape with lots of single character lines
will defeat the shape-pouring algorithm.
You can eliminate all alphanumerics (via Regex => 1) only if the
program to be converted is careful with its use of regular
expressions and C<$_>.
To convert complex programs, you must use Regex => 0, which
emits a leading unsightly double C<eval>.
The code generated by non-zero Regex requires Perl 5.005 or higher
in order to run; when run on earlier versions, you will likely
see the error message: C<Sequence (?{...) not recognized>.
If using Perl 5.18+, the generated file needs a leading
"use re 'eval'" when a postive value for Regex is used.
The converted program runs inside an C<eval> which may cause
problems for non-trivial programs. A C<die> statement or
an C<INIT> block, for instance, may cause trouble.
If desperate, give the C<TrapEvalDie> and C<TrapWarn>
attributes a go, and see if they fix the problem.
If the program to be converted uses the Perl format variables
C<$:>, C<$~> or C<$^> you may need to explicitly set the
C<FillerVar> attribute to a Perl variable/s not used by the program.
Linux F</usr/games/banner> does not support the following characters:
\ [ ] { } < > ^ _ | ~
When the CPAN Text::Banner module is enhanced, it will be used
in place of the Linux banner command.
=head1 AUTHOR
Andrew Savige <asavige@cpan.org>
=head1 SEE ALSO
Acme::EyeDrops lightning talk by Flavio Poletti at YAPC::Europe 2008 at F<http://yapc.tv/>.
Acme::EyeDrops in JPerl Advent Calendar (Japanese)
at F<http://perl-users.jp/articles/advent-calendar/2009/casual/08.html>.
The history of Acme::Bleach, Acme::EyeDrops and related modules
at F<http://www.perlmonks.org/?node_id=967004>.
Software Art page at F<http://www.runme.org/>.
Acme's Y::E 2002 naked arm wrestling movie at
F<http://astray.com/tmp/yapcbits3.mov>.
Japanese translations of selected CPAN modules (including Acme::EyeDrops)
can be found at F<http://perldoc.jp/docs/modules/>.
(Japanized Perl Resources Project is at
F<https://sourceforge.jp/projects/perldocjp/>).
Perl Obfuscation Engines, for example, yaoe by Perl Monk mtve,
at F<http://www.perlmonks.org/index.pl?node_id=161087>.
More information on 99 bottles of beer can be found at
F<http://www.99-bottles-of-beer.net/> and
F<http://archive.develooper.com/fwp@perl.org/msg03193.html>.
Similar sites exist for I<hello world> programs
F<http://www2.latech.edu/~acm/HelloWorld.shtml>,
and I<quines>
F<http://www.nyx.net/~gthompso/quine.htm>.
To learn more about HQ9+ programming visit
F<http://www.cliff.biffle.org/esoterica/hq9plus.html> and
F<http://search.cpan.org/dist/HQ9PLUS/>.
Perl Monks Obfuscation section.
In particular, ideas for EyeDrops shapes were got from:
F<http://www.perlmonks.org/index.pl?node_id=45213>
(Erudil's camel code),
F<http://www.perlmonks.org/index.pl?node_id=285157>
(Spaghetti Obfu),
F<http://www.perlmonks.org/index.pl?node_id=289733>
(Just another Bach Hacker),
F<http://www.perlmonks.org/index.pl?node_id=329174>
(hello world),
F<http://www.perlmonks.org/index.pl?node_id=188405>
(Sierpinski Triangle),
F<http://www.perlmonks.org/index.pl?node_id=398757>
(Halloween JAPH ?),
F<http://www.perlmonks.org/index.pl?node_id=384100>
(Propose.),
F<http://www.perlmonks.org/index.pl?node_id=397958>
(Saturn).
Changes to Perl 5.18 regex behavior are discussed at
F<http://perlmonks.org/?node_id=1030569>.
The Y::E 2002 I<Dark Art of Obfuscation> talk by Thomas Klausner
at F<http://domm.zsi.at/talks/obfu_yapc2002/>.
Les Perl Mongueurs de Paris $A++ page at
F<http://paris.mongueurs.net/aplusplus.html>.
Yanni Ellen Liu's excellent Ascii Art collection formerly at
F<http://www.cs.umanitoba.ca/~yliu/>.
More information on I<Baghdad Bob> can be found at
F<http://www.welovetheiraqiinformationminister.com/>.
More information on koaladiles (and their relationship to kwalitee)
can be found at
F<http://nntp.perl.org/group/perl.qa/3340>.
The cam.pm Obfuscated Programming Contests at
F<http://cam.pm.org/projects_home.shtml>.
I<Perl Golf> was played monthly at
F<http://perlgolf.sourceforge.net/> and is now played mostly at
F<http://codegolf.com/>. Ton Hospel's excellent generic
golf tester can be got from
F<http://www.xs4all.nl/~thospel/golf/gentest.pl>.
The C<--$|> idiom (exploited in the I<A Somersaulting Camel>
section) is "explained" in this thread:
F<http://archive.develooper.com/fwp@perl.org/msg01360.html>.
L<Acme::Bleach>
L<Acme::Smirch>
L<Acme::Buffy>
L<Acme::Pony>
L<Acme::ChuckNorris>
L<Acme::AsciiArt2HtmlTable>
L<Acme::AsciiArtinator>
=head1 CREDITS
I blame Japhy and Ronald J Kimball and others on the fwp
mailing list for exposing the ''=~ trick, Jas Nagra for
explaining his C<Acme::Smirch> module, and Rajah Ankur
and Supremely Unorthodox Eric for provoking me.
I would also like to thank Ian Phillipps, Philip Newton,
Ryan King, Michael G Schwern, Robert G Werner, Simon Cozens,
and others on the fwp mailing list for their advice on
ASCII Art, imaging programs, and on which picture of
Larry to use.
Thanks also to Mtv Europe, Ronald J Kimball and Eugene
van der Pijll for their help in golfing the program in
the I<Twelve Thousand and Thirty Two Camels> section.
Keith Calvert Ivey also contributed some levity to this section.
The "Love Birds" section was provoked by Muss, Jiun and Taffy.
The thumbsup shape was derived from one originally designed by Jiun.
Ideas from Adam Antonik, Mtv Europe, Eugene van der Pijll, Ton Hospel
and Keith Calvert Ivey were used in the I<Sierpinski Triangles> section.
Thanks cog for the prod to add new Shape Properties feature.
The jon shape was derived from
F<http://www.spidereyeballs.com/os5/set1/small_os5_r06_9705.html>.
Kudos to Elaine -HFB- Ashton for showing me this.
The merlyn shape was derived from this photo
F<http://www.stonehenge.com/merlyn/my_real_proof.jpg>
of Randal singing a duet with Samantha Fox.
The simon shape was derived from a pencil sketch by the Japanese
artist Eiko Yamashita.
The candle, china1, panda and santa2 shapes were derived from similar
ones at Yanni Ellen Liu's Ascii Art collection.
=head1 COPYRIGHT
Copyright (c) 2001-2015 Andrew Savige. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|