Source

emacs / lisp / ps-print.el

   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
;;; ps-print.el --- Jim's Pretty-Good PostScript Generator for Emacs 19.

;; Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.

;; Author: Jim Thompson <thompson@wg2.waii.com>
;; Maintainer: FSF
;; Keywords: print, PostScript

;; This file is part of GNU Emacs.

;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.

;; GNU Emacs 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.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.

;; LCD Archive Entry:
;; ps-print|James C. Thompson|thompson@wg2.waii.com|
;; Jim's Pretty-Good PostScript Generator for Emacs 19 (ps-print)|
;; 26-Feb-1994|2.8|~/packages/ps-print.el|

;; Baseline-version: 2.8.  (Jim's last change version -- this
;; file may have been edited as part of Emacs without changes to the
;; version number.  When reporting bugs, please also report the
;; version of Emacs, if any, that ps-print was distributed with.)

;;; Commentary:

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; About ps-print
;; --------------
;; This package provides printing of Emacs buffers on PostScript
;; printers; the buffer's bold and italic text attributes are
;; preserved in the printer output.  Ps-print is intended for use with
;; Emacs 19 or Lucid Emacs, together with a fontifying package such as
;; font-lock or hilit.
;;
;; Using ps-print
;; --------------
;;
;; The Commands
;;
;; Ps-print provides eight commands for generating PostScript images
;; of Emacs buffers:
;;
;;        ps-print-buffer
;;        ps-print-buffer-with-faces
;;        ps-print-region
;;        ps-print-region-with-faces
;;        ps-spool-buffer
;;        ps-spool-buffer-with-faces
;;        ps-spool-region
;;        ps-spool-region-with-faces
;;
;; These commands all perform essentially the same function: they
;; generate PostScript images suitable for printing on a PostScript
;; printer or displaying with GhostScript.  These commands are
;; collectively referred to as "ps-print- commands".
;;
;; The word "print" or "spool" in the command name determines when the
;; PostScript image is sent to the printer:
;;
;;        print      - The PostScript image is immediately sent to the
;;                     printer;
;;
;;        spool      - The PostScript image is saved temporarily in an
;;                     Emacs buffer.  Many images may be spooled locally
;;                     before printing them.  To send the spooled images
;;                     to the printer, use the command ps-despool.
;;
;; The spooling mechanism was designed for printing lots of small
;; files (mail messages or netnews articles) to save paper that would
;; otherwise be wasted on banner pages, and to make it easier to find
;; your output at the printer (it's easier to pick up one 50-page
;; printout than to find 50 single-page printouts).
;; 
;; Ps-print has a hook in the kill-emacs-hooks so that you won't
;; accidentally quit from Emacs while you have unprinted PostScript
;; waiting in the spool buffer.  If you do attempt to exit with
;; spooled PostScript, you'll be asked if you want to print it, and if
;; you decline, you'll be asked to confirm the exit; this is modeled
;; on the confirmation that Emacs uses for modified buffers.
;;
;; The word "buffer" or "region" in the command name determines how
;; much of the buffer is printed:
;;
;;        buffer     - Print the entire buffer.
;;
;;        region     - Print just the current region.
;;
;; The -with-faces suffix on the command name means that the command
;; will include font, color, and underline information in the
;; PostScript image, so the printed image can look as pretty as the
;; buffer.  The ps-print- commands without the -with-faces suffix
;; don't include font, color, or underline information; images printed
;; with these commands aren't as pretty, but are faster to generate.
;;
;; Two ps-print- command examples:
;;
;;        ps-print-buffer             - print the entire buffer,
;;                                      without font, color, or
;;                                      underline information, and
;;                                      send it immediately to the
;;                                      printer.
;;
;;        ps-spool-region-with-faces  - print just the current region;
;;                                      include font, color, and
;;                                      underline information, and
;;                                      spool the image in Emacs to
;;                                      send to the printer later.
;;
;;
;; Invoking Ps-Print
;;
;; To print your buffer, type
;;
;;        M-x ps-print-buffer
;;
;; or substitute one of the other seven ps-print- commands.  The
;; command will generate the PostScript image and print or spool it as
;; specified.  By giving the command a prefix argument
;;
;;        C-u M-x ps-print-buffer
;;
;; it will save the PostScript image to a file instead of sending it
;; to the printer; you will be prompted for the name of the file to
;; save the image to.  The prefix argument is ignored by the commands
;; that spool their images, but you may save the spooled images to a
;; file by giving a prefix argument to ps-despool:
;;
;;        C-u M-x ps-despool
;;
;; When invoked this way, ps-despool will prompt you for the name of
;; the file to save to.
;;
;; Any of the ps-print- commands can be bound to keys; I recommend
;; binding ps-spool-buffer-with-faces, ps-spool-region-with-faces, and
;; ps-despool.  Here are the bindings I use on my Sun 4 keyboard:
;;
;;   (global-set-key 'f22 'ps-spool-buffer-with-faces) ;f22 is prsc
;;   (global-set-key '(shift f22) 'ps-spool-region-with-faces)
;;   (global-set-key '(control f22) 'ps-despool)
;;
;;
;; The Printer Interface
;;
;; The variables ps-lpr-command and ps-lpr-switches determine what
;; command is used to send the PostScript images to the printer, and
;; what arguments to give the command.  These are analogous to lpr-
;; command and lpr-switches.
;;
;; NOTE: ps-lpr-command and ps-lpr-switches take their initial values
;;       from the variables lpr-command and lpr-switches.  If you have
;;       lpr-command set to invoke a pretty-printer such as enscript,
;;       then ps-print won't work properly.  ps-lpr-command must name
;;       a program that does not format the files it prints.
;;
;;
;; How Ps-Print Deals With Fonts
;;
;; The ps-print-*-with-faces commands attempt to determine which faces
;; should be printed in bold or italic, but their guesses aren't
;; always right.  For example, you might want to map colors into faces
;; so that blue faces print in bold, and red faces in italic.
;;
;; It is possible to force ps-print to consider specific faces bold or
;; italic, no matter what font they are displayed in, by setting the
;; variables ps-bold-faces and ps-italic-faces.  These variables
;; contain lists of faces that ps-print should consider bold or
;; italic; to set them, put code like the following into your .emacs
;; file:
;;
;; 	(setq ps-bold-faces '(my-blue-face))
;;      (setq ps-italic-faces '(my-red-face))
;;
;; Faces like bold-italic that are both bold and italic should go in
;; *both* lists.
;;
;; Ps-print does not attempt to guess the sizes of fonts; all text is
;; rendered using the Courier font family, in 10 point size.  To
;; change the font family, change the variables ps-font, ps-font-bold,
;; ps-font-italic, and ps-font-bold-italic; fixed-pitch fonts work
;; best, but are not required.  To change the font size, change the
;; variable ps-font-size.
;;
;; If you change the font family or size, you MUST also change the
;; variables ps-line-height, ps-avg-char-width, and ps-space-width, or
;; ps-print cannot correctly place line and page breaks.
;;
;; Ps-print keeps internal lists of which fonts are bold and which are
;; italic; these lists are built the first time you invoke ps-print.
;; For the sake of efficiency, the lists are built only once; the same
;; lists are referred in later invocations of ps-print.
;;
;; Because these lists are built only once, it's possible for them to
;; get out of sync, if a face changes, or if new faces are added.  To
;; get the lists back in sync, you can set the variable
;; ps-build-face-reference to t, and the lists will be rebuilt the
;; next time ps-print is invoked.
;;
;;
;; How Ps-Print Deals With Color
;;
;; Ps-print detects faces with foreground and background colors
;; defined and embeds color information in the PostScript image.  The
;; default foreground and background colors are defined by the
;; variables ps-default-fg and ps-default-bg.  On black-and-white
;; printers, colors are displayed in grayscale.  To turn off color
;; output, set ps-print-color-p to nil.
;;
;;
;; Headers
;;
;; Ps-print can print headers at the top of each page; the default
;; headers contain the following four items: on the left, the name of
;; the buffer and, if the buffer is visiting a file, the file's
;; directory; on the right, the page number and date of printing.  The
;; default headers look something like this:
;;
;;     ps-print.el                                         1/21
;;     /home/jct/emacs-lisp/ps/new                     94/12/31
;; 
;; When printing on duplex printers, left and right are reversed so
;; that the page numbers are toward the outside.
;;
;; Headers are configurable.  To turn them off completely, set
;; ps-print-header to nil.  To turn off the header's gaudy framing
;; box, set ps-print-header-frame to nil.  Page numbers are printed in
;; "n/m" format, indicating page n of m pages; to omit the total page
;; count and just print the page number, set ps-show-n-of-n to nil.
;;
;; The amount of information in the header can be changed by changing
;; the number of lines.  To show less, set ps-header-lines to 1, and
;; the header will show only the buffer name and page number.  To show
;; more, set ps-header-lines to 3, and the header will show the time of
;; printing below the date.
;;
;; To change the content of the headers, change the variables
;; ps-left-header and ps-right-header.  These variables are lists,
;; specifying top-to-bottom the text to display on the left or right
;; side of the header.  Each element of the list should be a string or
;; a symbol.  Strings are inserted directly into the PostScript
;; arrays, and should contain the PostScript string delimiters '(' and
;; ')'.
;;
;; Symbols in the header format lists can either represent functions
;; or variables.  Functions are called, and should return a string to
;; show in the header.  Variables should contain strings to display in
;; the header.  In either case, function or variable, the PostScript
;; string delimiters are added by ps-print, and should not be part of
;; the returned value.
;;
;; Here's an example: say we want the left header to display the text
;;
;;     Moe
;;     Larry
;;     Curly
;;
;; where we have a function to return "Moe"
;;
;;     (defun moe-func ()
;;       "Moe")
;;
;; a variable specifying "Larry"
;;
;;     (setq larry-var "Larry")
;;
;; and a literal for "Curly".  Here's how ps-left-header should be
;; set:
;;
;;     (setq ps-left-header (list 'moe-func 'larry-var "(Curly)"))
;;
;; Note that Curly has the PostScript string delimiters inside his
;; quotes -- those aren't misplaced lisp delimiters!  Without them,
;; PostScript would attempt to call the undefined function Curly,
;; which would result in a PostScript error.  Since most printers
;; don't report PostScript errors except by aborting the print job,
;; this kind of error can be hard to track down.  Consider yourself
;; warned.
;;
;;
;; Duplex Printers
;;
;; If you have a duplex-capable printer (one that prints both sides of
;; the paper), set ps-spool-duplex to t.  Ps-print will insert blank
;; pages to make sure each buffer starts on the correct side of the
;; paper.  Don't forget to set ps-lpr-switches to select duplex
;; printing for your printer.
;; 
;;
;; Paper Size
;;
;; The variable ps-paper-type determines the size of paper ps-print
;; formats for; it should contain one of the symbols ps-letter,
;; ps-legal, or ps-a4.  The default is ps-letter.
;;
;;
;; Make sure that the variables ps-lpr-command and ps-lpr-switches
;; contain appropriate values for your system; see the usage notes
;; below and the documentation of these variables.
;;
;; 
;; New since version 1.5
;; ---------------------
;; Color output capability.
;;
;; Automatic detection of font attributes (bold, italic).
;;
;; Configurable headers with page numbers.
;;
;; Slightly faster.
;;
;; Support for different paper sizes.
;;
;; Better conformance to PostScript Document Structure Conventions.
;;
;;
;; Known bugs and limitations of ps-print:
;; --------------------------------------
;; Although color printing will work in XEmacs 19.12, it doesn't work
;; well; in particular, bold or italic fonts don't print in the right
;; background color.
;;
;; Invisible properties aren't correctly ignored in XEmacs 19.12.
;;
;; Automatic font-attribute detection doesn't work well, especially
;; with hilit19 and older versions of get-create-face.  Users having
;; problems with auto-font detection should use the lists ps-italic-
;; faces and ps-bold-faces and/or turn off automatic detection by
;; setting ps-auto-font-detect to nil.
;;
;; Automatic font-attribute detection doesn't work with XEmacs 19.12
;; in tty mode; use the lists ps-italic-faces and ps-bold-faces
;; instead.
;;
;; Still too slow; could use some hand-optimization.
;;
;; ASCII Control characters other than tab, linefeed and pagefeed are
;; not handled.
;;
;; Default background color isn't working.
;;
;; Faces are always treated as opaque.
;;
;; Epoch and Emacs 18 not supported.  At all.
;;
;;
;; Features to add:
;; ---------------
;; 2-up and 4-up capability.
;;
;; Line numbers.
;;
;; Wide-print (landscape) capability.
;;
;;
;; Acknowledgements
;; ----------------
;; Thanks to Kevin Rodgers <kevinr@ihs.com> for adding support for
;; color and the invisible property.
;;
;; Thanks to Avishai Yacobi, avishaiy@mcil.comm.mot.com, for writing
;; the initial port to Emacs 19.  His code is no longer part of
;; ps-print, but his work is still appreciated.
;;
;; Thanks to Remi Houdaille and Michel Train, michel@metasoft.fdn.org,
;; for adding underline support.  Their code also is no longer part of
;; ps-print, but their efforts are not forgotten.
;;
;; Thanks also to all of you who mailed code to add features to
;; ps-print; although I didn't use your code, I still appreciate your
;; sharing it with me.
;;
;; Thanks to all who mailed comments, encouragement, and criticism.
;; Thanks also to all who responded to my survey; I had too many
;; responses to reply to them all, but I greatly appreciate your
;; interest.
;;
;; Jim
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;; Code:

(defconst ps-print-version "2.8"
  "ps-print.el,v 2.8 1995/05/04 12:06:10 jct Exp

Jim's last change version -- this file may have been edited as part of
Emacs without changes to the version number.  When reporting bugs,
please also report the version of Emacs, if any, that ps-print was
distributed with.

Please send all bug fixes and enhancements to
	Jim Thompson <thompson@wg2.waii.com>.")

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; User Variables:

(defvar ps-lpr-command lpr-command
  "*The shell command for printing a PostScript file.")

(defvar ps-lpr-switches lpr-switches
  "*A list of extra switches to pass to `ps-lpr-command'.")

(defvar ps-spool-duplex nil		; Not many people have duplex
					; printers, so default to nil.
  "*Non-nil indicates spooling is for a two-sided printer.
For a duplex printer, the `ps-spool-*' commands will insert blank pages
as needed between print jobs so that the next buffer printed will
start on the right page.  Also, if headers are turned on, the headers
will be reversed on duplex printers so that the page numbers fall to
the left on even-numbered pages.")

(defvar ps-paper-type 'ps-letter
  "*Specifies the size of paper to format for.  Should be one of
`ps-letter', `ps-legal', or `ps-a4'.")

(defvar ps-print-header t
  "*Non-nil means print a header at the top of each page.
By default, the header displays the buffer name, page number, and, if
the buffer is visiting a file, the file's directory.  Headers are
customizable by changing variables `ps-header-left' and
`ps-header-right'.")

(defvar ps-print-header-frame t
  "*Non-nil means draw a gaudy frame around the header.")

(defvar ps-show-n-of-n t
  "*Non-nil means show page numbers as N/M, meaning page N of M.
Note: page numbers are displayed as part of headers, see variable
`ps-print-headers'.")

(defvar ps-print-color-p (and (or (fboundp 'x-color-values)   ; Emacs
				(fboundp 'pixel-components))  ; XEmacs
			      (fboundp 'float))
; Printing color requires both floating point and x-color-values.
  "*If non-nil, print the buffer's text in color.")

(defvar ps-default-fg '(0.0 0.0 0.0)
  "*RGB values of the default foreground color.  Defaults to black.")

(defvar ps-default-bg '(1.0 1.0 1.0)
  "*RGB values of the default background color.  Defaults to white.")

(defvar ps-font-size 10
  "*Font size, in points, for generating Postscript.")

(defvar ps-font "Courier"
  "*Font family name for ordinary text, when generating Postscript.")

(defvar ps-font-bold "Courier-Bold"
  "*Font family name for bold text, when generating Postscript.")

(defvar ps-font-italic "Courier-Oblique"
  "*Font family name for italic text, when generating Postscript.")

(defvar ps-font-bold-italic "Courier-BoldOblique"
  "*Font family name for bold italic text, when generating Postscript.")

(defvar ps-avg-char-width (if (fboundp 'float) 5.6 6)
  "*The average width, in points, of a character, for generating Postscript.
This is the value that ps-print uses to determine the length,
x-dimension, of the text it has printed, and thus affects the point at
which long lines wrap around.  If you change the font or
font size, you will probably have to adjust this value to match.")

(defvar ps-space-width (if (fboundp 'float) 5.6 6)
  "*The width of a space character, for generating Postscript.
This value is used in expanding tab characters.")

(defvar ps-line-height (if (fboundp 'float) 11.29 11)
  "*The height of a line, for generating Postscript.
This is the value that ps-print uses to determine the height,
y-dimension, of the lines of text it has printed, and thus affects the
point at which page-breaks are placed.  If you change the font or font
size, you will probably have to adjust this value to match.  The
line-height is *not* the same as the point size of the font.")

(defvar ps-auto-font-detect t
  "*Non-nil means automatically detect bold/italic face attributes.
nil means rely solely on the lists `ps-bold-faces', `ps-italic-faces',
and `ps-underlined-faces'.")

(defvar ps-bold-faces '()
  "*A list of the \(non-bold\) faces that should be printed in bold font.
This applies to generating Postscript.")

(defvar ps-italic-faces '()
  "*A list of the \(non-italic\) faces that should be printed in italic font.
This applies to generating Postscript.")

(defvar ps-underlined-faces '()
  "*A list of the \(non-underlined\) faces that should be printed underlined.
This applies to generating Postscript.")

(defvar ps-header-lines 2
  "*Number of lines to display in page header, when generating Postscript.")
(make-variable-buffer-local 'ps-header-lines)

(defvar ps-left-header
  (list 'ps-get-buffer-name 'ps-header-dirpart)
  "*The items to display on the right part of the page header.
This applies to generating Postscript.

The value should be a list of strings and symbols, each representing an
entry in the PostScript array HeaderLinesLeft.

Strings are inserted unchanged into the array; those representing
PostScript string literals should be delimited with PostScript string
delimiters '(' and ')'.

For symbols with bound functions, the function is called and should
return a string to be inserted into the array.  For symbols with bound
values, the value should be a string to be inserted into the array.
In either case, function or variable, the string value has PostScript
string delimiters added to it.")
(make-variable-buffer-local 'ps-left-header)

(defvar ps-right-header
  (list "/pagenumberstring load" 'time-stamp-yy/mm/dd 'time-stamp-hh:mm:ss)
  "*The items to display on the left part of the page header.
This applies to generating Postscript.

See the variable `ps-left-header' for a description of the format of
this variable.")
(make-variable-buffer-local 'ps-right-header)

(defvar ps-razzle-dazzle t
  "*Non-nil means report progress while formatting buffer.")

(defvar ps-adobe-tag "%!PS-Adobe-1.0\n"
  "*Contains the header line identifying the output as PostScript.
By default, `ps-adobe-tag' contains the standard identifier.  Some
printers require slightly different versions of this line.")

(defvar ps-build-face-reference t
  "*Non-nil means build the reference face lists.

Ps-print sets this value to nil after it builds its internal reference
lists of bold and italic faces.  By settings its value back to t, you
can force ps-print to rebuild the lists the next time you invoke one
of the ...-with-faces commands.

You should set this value back to t after you change the attributes of
any face, or create new faces.  Most users shouldn't have to worry
about its setting, though.")

(defvar ps-always-build-face-reference nil
  "*Non-nil means always rebuild the reference face lists.

If this variable is non-nil, ps-print will rebuild its internal
reference lists of bold and italic faces *every* time one of the
-with-faces commands is called.  Most users shouldn't need to set this
variable.")

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; User commands

;;;###autoload
(defun ps-print-buffer (&optional filename)
  "Generate and print a PostScript image of the buffer.

When called with a numeric prefix argument (C-u), prompts the user for
the name of a file to save the PostScript image in, instead of sending
it to the printer.

More specifically, the FILENAME argument is treated as follows: if it
is nil, send the image to the printer.  If FILENAME is a string, save
the PostScript image in a file with that name.  If FILENAME is a
number, prompt the user for the name of the file to save in."

  (interactive (list (ps-print-preprint current-prefix-arg)))
  (ps-generate (current-buffer) (point-min) (point-max)
	       'ps-generate-postscript)
  (ps-do-despool filename))


;;;###autoload
(defun ps-print-buffer-with-faces (&optional filename)
  "Generate and print a PostScript image of the buffer.
Like `ps-print-buffer', but includes font, color, and underline
information in the generated image.  This command works only if you
are using a window system, so it has a way to determine color values."
  (interactive (list (ps-print-preprint current-prefix-arg)))
  (ps-generate (current-buffer) (point-min) (point-max)
	       'ps-generate-postscript-with-faces)
  (ps-do-despool filename))


;;;###autoload
(defun ps-print-region (from to &optional filename)
  "Generate and print a PostScript image of the region.
Like `ps-print-buffer', but prints just the current region."

  (interactive (list (point) (mark) (ps-print-preprint current-prefix-arg)))
  (ps-generate (current-buffer) from to
	       'ps-generate-postscript)
  (ps-do-despool filename))


;;;###autoload
(defun ps-print-region-with-faces (from to &optional filename)
  "Generate and print a PostScript image of the region.
Like `ps-print-region', but includes font, color, and underline
information in the generated image.  This command works only if you
are using a window system, so it has a way to determine color values."

  (interactive (list (point) (mark) (ps-print-preprint current-prefix-arg)))
  (ps-generate (current-buffer) from to
	       'ps-generate-postscript-with-faces)
  (ps-do-despool filename))


;;;###autoload
(defun ps-spool-buffer ()
  "Generate and spool a PostScript image of the buffer.
Like `ps-print-buffer' except that the PostScript image is saved in a
local buffer to be sent to the printer later.

Use the command `ps-despool' to send the spooled images to the printer."
  (interactive)
  (ps-generate (current-buffer) (point-min) (point-max)
	       'ps-generate-postscript))


;;;###autoload
(defun ps-spool-buffer-with-faces ()
  "Generate and spool a PostScript image of the buffer.
Like `ps-spool-buffer', but includes font, color, and underline
information in the generated image.  This command works only if you
are using a window system, so it has a way to determine color values.

Use the command `ps-despool' to send the spooled images to the printer."

  (interactive)
  (ps-generate (current-buffer) (point-min) (point-max)
	       'ps-generate-postscript-with-faces))


;;;###autoload
(defun ps-spool-region (from to)
  "Generate a PostScript image of the region and spool locally.
Like `ps-spool-buffer', but spools just the current region.

Use the command `ps-despool' to send the spooled images to the printer."
  (interactive "r")
  (ps-generate (current-buffer) from to
	       'ps-generate-postscript))


;;;###autoload
(defun ps-spool-region-with-faces (from to)
  "Generate a PostScript image of the region and spool locally.
Like `ps-spool-region', but includes font, color, and underline
information in the generated image.  This command works only if you
are using a window system, so it has a way to determine color values.

Use the command `ps-despool' to send the spooled images to the printer."
  (interactive "r")
  (ps-generate (current-buffer) from to
	       'ps-generate-postscript-with-faces))

;;;###autoload
(defun ps-despool (&optional filename)
  "Send the spooled PostScript to the printer.

When called with a numeric prefix argument (C-u), prompt the user for
the name of a file to save the spooled PostScript in, instead of sending
it to the printer.

More specifically, the FILENAME argument is treated as follows: if it
is nil, send the image to the printer.  If FILENAME is a string, save
the PostScript image in a file with that name.  If FILENAME is a
number, prompt the user for the name of the file to save in."
  (interactive (list (ps-print-preprint current-prefix-arg)))
  (ps-do-despool filename))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Utility functions and variables:

(defvar ps-print-emacs-type
  (cond ((string-match "XEmacs" emacs-version) 'xemacs)
	((string-match "Lucid" emacs-version) 'lucid)
	((string-match "Epoch" emacs-version) 'epoch)
	(t 'emacs)))

(if (or (eq ps-print-emacs-type 'lucid)
	(eq ps-print-emacs-type 'xemacs))
    (if (< emacs-minor-version 12)
	(setq ps-print-color-p nil))
  (require 'faces))			; face-font, face-underline-p,
					; x-font-regexp

(require 'time-stamp)

(defvar ps-print-prologue "% ISOLatin1Encoding stolen from ps_init.ps in GhostScript 2.6.1.4:
% If the ISOLatin1Encoding vector isn't known, define it.
/ISOLatin1Encoding where { pop } {
% Define the ISO Latin-1 encoding vector.
% The first half is the same as the standard encoding,
% except for minus instead of hyphen at code 055.
/ISOLatin1Encoding
StandardEncoding 0 45 getinterval aload pop
    /minus
StandardEncoding 46 82 getinterval aload pop
%*** NOTE: the following are missing in the Adobe documentation,
%*** but appear in the displayed table:
%*** macron at 0225, dieresis at 0230, cedilla at 0233, space at 0240.
% \20x
    /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
    /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef
    /dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent
    /dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron
% \24x
    /space /exclamdown /cent /sterling
	/currency /yen /brokenbar /section
    /dieresis /copyright /ordfeminine /guillemotleft
	/logicalnot /hyphen /registered /macron
    /degree /plusminus /twosuperior /threesuperior
	/acute /mu /paragraph /periodcentered
    /cedilla /onesuperior /ordmasculine /guillemotright
	/onequarter /onehalf /threequarters /questiondown
% \30x
    /Agrave /Aacute /Acircumflex /Atilde
	/Adieresis /Aring /AE /Ccedilla
    /Egrave /Eacute /Ecircumflex /Edieresis
	/Igrave /Iacute /Icircumflex /Idieresis
    /Eth /Ntilde /Ograve /Oacute
	/Ocircumflex /Otilde /Odieresis /multiply
    /Oslash /Ugrave /Uacute /Ucircumflex
	/Udieresis /Yacute /Thorn /germandbls
% \34x
    /agrave /aacute /acircumflex /atilde
	/adieresis /aring /ae /ccedilla
    /egrave /eacute /ecircumflex /edieresis
	/igrave /iacute /icircumflex /idieresis
    /eth /ntilde /ograve /oacute
	/ocircumflex /otilde /odieresis /divide
    /oslash /ugrave /uacute /ucircumflex
	/udieresis /yacute /thorn /ydieresis
256 packedarray def
} ifelse

/reencodeFontISO { %def
  dup
  length 5 add dict			% Make a new font (a new dict
					% the same size as the old
					% one) with room for our new
					% symbols.

  begin					% Make the new font the
					% current dictionary.


    { 1 index /FID ne
      { def } { pop pop } ifelse
    } forall				% Copy each of the symbols
					% from the old dictionary to
					% the new except for the font
					% ID.

    /Encoding ISOLatin1Encoding def	% Override the encoding with
					% the ISOLatin1 encoding.

    % Use the font's bounding box to determine the ascent, descent,
    % and overall height; don't forget that these values have to be
    % transformed using the font's matrix.
    FontBBox
    FontMatrix transform /Ascent exch def pop
    FontMatrix transform /Descent exch def pop
    /FontHeight Ascent Descent sub def

    % Define these in case they're not in the FontInfo (also, here
    % they're easier to get to.
    /UnderlinePosition 1 def
    /UnderlineThickness 1 def

    % Get the underline position and thickness if they're defined.
    currentdict /FontInfo known {
      FontInfo

      dup /UnderlinePosition known {
	dup /UnderlinePosition get
	0 exch FontMatrix transform exch pop
	/UnderlinePosition exch def
      } if

      dup /UnderlineThickness known {
	/UnderlineThickness get
	0 exch FontMatrix transform exch pop
	/UnderlineThickness exch def
      } if

    } if

    currentdict				% Leave the new font on the
					% stack

    end					% Stop using the font as the
					% current dictionary.

    definefont				% Put the font into the font
					% dictionary

    pop					% Discard the returned font.
} bind def

/Font {
  findfont exch scalefont reencodeFontISO
} def

/F {					% Font select
  findfont
  dup /Ascent get /Ascent exch def
  dup /Descent get /Descent exch def
  dup /FontHeight get /FontHeight exch def
  dup /UnderlinePosition get /UnderlinePosition exch def
  dup /UnderlineThickness get /UnderlineThickness exch def
  setfont
} def

/FG /setrgbcolor load def

/bg false def
/BG {
  dup /bg exch def
  { mark 4 1 roll ] /bgcolor exch def } if
} def

/dobackground {				% width --
  currentpoint
  gsave
    newpath
    moveto
    0 Ascent rmoveto
    dup 0 rlineto
    0 Descent Ascent sub rlineto
    neg 0 rlineto
    closepath
    bgcolor aload pop setrgbcolor
    fill
  grestore
} def

/dobackgroundstring {			% string --
  stringwidth pop
  dobackground
} def

/dounderline {				% fromx fromy --
  currentpoint
  gsave
    UnderlineThickness setlinewidth
    4 2 roll
    UnderlinePosition add moveto
    UnderlinePosition add lineto
    stroke
  grestore
} def

/eolbg {
  currentpoint pop
  PrintWidth LeftMargin add exch sub dobackground
} def

/eolul {
  currentpoint exch pop
  PrintWidth LeftMargin add exch dounderline
} def

/SL {					% Soft Linefeed
  bg { eolbg } if
  ul { eolul } if
  currentpoint LineHeight sub LeftMargin exch moveto pop
} def

/HL /SL load def			% Hard Linefeed

/sp1 { currentpoint 3 -1 roll } def

% Some debug
/dcp { currentpoint exch 40 string cvs print (, ) print = } def
/dp { print 2 copy
   exch 40 string cvs print (, ) print = } def

/S {
  bg { dup dobackgroundstring } if
  ul { sp1 } if
  show
  ul { dounderline } if
} def

/W {
  ul { sp1 } if
  ( ) stringwidth			% Get the width of a space
  pop					% Discard the Y component
  mul					% Multiply the width of a
					% space by the number of
					% spaces to plot
  bg { dup dobackground } if
  0 rmoveto
  ul { dounderline } if
} def

/BeginDSCPage {
  /vmstate save def
} def

/BeginPage {
  PrintHeader {
    PrintHeaderFrame { HeaderFrame } if
    HeaderText
  } if
  LeftMargin
  BottomMargin PrintHeight add
  moveto				% move to where printing will
					% start.
} def

/EndPage {
  bg { eolbg } if
  ul { eolul } if
  showpage				% Spit out a page
} def

/EndDSCPage {
  vmstate restore
} def

/ul false def

/UL { /ul exch def } def

/h0 14 /Helvetica-Bold Font
/h1 12 /Helvetica Font

/h1 F

/HeaderLineHeight FontHeight def
/HeaderDescent Descent def
/HeaderPad 2 def

/SetHeaderLines {
  /HeaderOffset TopMargin 2 div def
  /HeaderLines exch def
  /HeaderHeight HeaderLines HeaderLineHeight mul HeaderPad 2 mul add def
  /PrintHeight PrintHeight HeaderHeight sub def
} def

/HeaderFrameStart {
  LeftMargin BottomMargin PrintHeight add HeaderOffset add
} def

/HeaderFramePath {
  PrintWidth 0 rlineto
  0 HeaderHeight rlineto
  PrintWidth neg 0 rlineto
  0 HeaderHeight neg rlineto
} def

/HeaderFrame {
  gsave
    0.4 setlinewidth
    HeaderFrameStart moveto
    1 -1 rmoveto
    HeaderFramePath
    0 setgray fill
    HeaderFrameStart moveto
    HeaderFramePath
    gsave 0.9 setgray fill grestore
    gsave 0 setgray stroke grestore
  grestore
} def

/HeaderStart {
  HeaderFrameStart
  exch HeaderPad add exch
  HeaderLineHeight HeaderLines 1 sub mul add HeaderDescent sub HeaderPad add
} def

/strcat {
  dup length 3 -1 roll dup length dup 4 -1 roll add string dup
  0 5 -1 roll putinterval
  dup 4 2 roll exch putinterval
} def

/pagenumberstring {
  PageNumber 32 string cvs
  ShowNofN {
    (/) strcat
    PageCount 32 string cvs strcat
  } if
} def

/HeaderText {
  HeaderStart moveto

  HeaderLinesRight HeaderLinesLeft
  Duplex PageNumber 1 and 0 eq and { exch } if

  {
    aload pop
    exch F
    gsave
      dup xcheck { exec } if
      show
    grestore
    0 HeaderLineHeight neg rmoveto
  } forall

  HeaderStart moveto

   {
    aload pop
    exch F
    gsave
      dup xcheck { exec } if
      dup stringwidth pop
      PrintWidth exch sub HeaderPad 2 mul sub 0 rmoveto
      show
    grestore
    0 HeaderLineHeight neg rmoveto
  } forall
} def

/ReportFontInfo {
  2 copy
  /t0 3 1 roll Font
  /t0 F
  /lh FontHeight def
  /sw ( ) stringwidth pop def
  /aw (01234567890abcdefghijklmnopqrstuvwxyz) dup length exch
  stringwidth pop exch div def
  /t1 12 /Helvetica-Oblique Font
  /t1 F
  72 72 moveto
  gsave
    (For ) show
    128 string cvs show
    ( ) show
    32 string cvs show
    ( point, the line height is ) show
    lh 32 string cvs show
    (, the space width is ) show
    sw 32 string cvs show
    (,) show
  grestore
  0 FontHeight neg rmoveto
  (and a crude estimate of average character width is ) show
  aw 32 string cvs show
  (.) show
  showpage
} def

% 10 /Courier ReportFontInfo
")

;; Start Editing Here:

(defvar ps-source-buffer nil)
(defvar ps-spool-buffer-name "*PostScript*")
(defvar ps-spool-buffer nil)

(defvar ps-output-head nil)
(defvar ps-output-tail nil)

(defvar ps-page-count 0)
(defvar ps-showpage-count 0)

(defvar ps-current-font 0)
(defvar ps-current-underline-p nil)
(defvar ps-default-color (if ps-print-color-p ps-default-fg)) ; black
(defvar ps-current-color ps-default-color)
(defvar ps-current-bg nil)

(defvar ps-razchunk 0)

(defvar ps-color-format (if (eq ps-print-emacs-type 'emacs)

			    ;;Emacs understands the %f format; we'll
			    ;;use it to limit color RGB values to
			    ;;three decimals to cut down some on the
			    ;;size of the PostScript output.
			    "%0.3f %0.3f %0.3f"

			  ;; Lucid emacsen will have to make do with
			  ;; %s (princ) for floats.
			  "%s %s %s"))

;; These values determine how much print-height to deduct when headers
;; are turned on.  This is a pretty clumsy way of handling it, but
;; it'll do for now.
(defvar ps-header-title-line-height (if (fboundp 'float) 16.0 16));Helvetica 14
(defvar ps-header-line-height (if (fboundp 'float) 13.7 14));Helvetica 12
(defvar ps-header-pad 2)

;; LetterSmall 7.68 inch 10.16 inch
;; Tabloid 11.0 inch 17.0 inch
;; Ledger 17.0 inch 11.0 inch
;; Statement 5.5 inch 8.5 inch
;; Executive 7.5 inch 10.0 inch
;; A3 11.69 inch 16.5 inch
;; A4Small 7.47 inch 10.85 inch
;; B4 10.125 inch 14.33 inch
;; B5 7.16 inch 10.125 inch

;; All page dimensions are in PostScript points.

(defvar ps-left-margin 72)		; 1 inch
(defvar ps-right-margin 72)		; 1 inch
(defvar ps-bottom-margin 36)		; 1/2 inch
(defvar ps-top-margin 72)		; 1 inch

;; Letter 8.5 inch x 11.0 inch
(defvar ps-letter-page-height 792)	; 11 inches
(defvar ps-letter-page-width 612)	; 8.5 inches

;; Legal 8.5 inch x 14.0 inch
(defvar ps-legal-page-height 1008)	; 14.0 inches
(defvar ps-legal-page-width 612)	; 8.5 inches

;; A4 8.26 inch x 11.69 inch
(defvar ps-a4-page-height 842)	; 11.69 inches
(defvar ps-a4-page-width 595)	; 8.26 inches

(defvar ps-pages-alist
  (list (list 'ps-letter ps-letter-page-width ps-letter-page-height)
	(list 'ps-legal ps-legal-page-width ps-legal-page-height)
	(list 'ps-a4 ps-a4-page-width ps-a4-page-height)))

;; Define some constants to index into the page lists.
(defvar ps-page-width-i 1)
(defvar ps-page-height-i 2)

(defvar ps-page-dimensions nil)
(defvar ps-print-width nil)
(defvar ps-print-height nil)

(defvar ps-height-remaining)
(defvar ps-width-remaining)

(defvar ps-ref-bold-faces nil)
(defvar ps-ref-italic-faces nil)
(defvar ps-ref-underlined-faces nil)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Internal functions

(defun ps-get-page-dimensions ()
  (setq ps-page-dimensions (assq ps-paper-type ps-pages-alist))
  (let ((ps-page-width (nth ps-page-width-i ps-page-dimensions))
	(ps-page-height (nth ps-page-height-i ps-page-dimensions)))
    (setq ps-print-height (- ps-page-height ps-top-margin ps-bottom-margin))
    (setq ps-print-width (- ps-page-width ps-left-margin ps-right-margin))))

(defun ps-print-preprint (&optional filename)
  (if (and filename
	   (or (numberp filename)
	       (listp filename)))
      (let* ((name (concat (buffer-name) ".ps"))
	     (prompt (format "Save PostScript to file: (default %s) "
			     name)))
	(read-file-name prompt default-directory
			name nil))))

;; The following functions implement a simple list-buffering scheme so
;; that ps-print doesn't have to repeatedly switch between buffers
;; while spooling.  The functions ps-output and ps-output-string build
;; up the lists; the function ps-flush-output takes the lists and
;; insert its contents into the spool buffer (*PostScript*).

(defun ps-output-string-prim (string)
  (insert "(")				;insert start-string delimiter
  (save-excursion			;insert string
    (insert string))

  ;; Find and quote special characters as necessary for PS
  (while (re-search-forward "[()\\]" nil t)
    (save-excursion
      (forward-char -1)
      (insert "\\")))

  (goto-char (point-max))
  (insert ")"))				;insert end-string delimiter

(defun ps-init-output-queue ()
  (setq ps-output-head (list ""))
  (setq ps-output-tail ps-output-head))

(defun ps-output (&rest args)
  (setcdr ps-output-tail args)
  (while (cdr ps-output-tail)
    (setq ps-output-tail (cdr ps-output-tail))))

(defun ps-output-string (string)
  (ps-output t string))

(defun ps-flush-output ()
  (save-excursion
    (set-buffer ps-spool-buffer)
    (goto-char (point-max))
    (while ps-output-head
      (let ((it (car ps-output-head)))
	(if (not (eq t it))
	    (insert it)
	  (setq ps-output-head (cdr ps-output-head))
	  (ps-output-string-prim (car ps-output-head))))
      (setq ps-output-head (cdr ps-output-head))))
  (ps-init-output-queue))

(defun ps-insert-file (fname)
  (ps-flush-output)

  ;; Check to see that the file exists and is readable; if not, throw
  ;; and error.
  (if (not (file-readable-p fname))
      (error "Could not read file `%s'" fname))

  (save-excursion
    (set-buffer ps-spool-buffer)
    (goto-char (point-max))
    (insert-file fname)))
    
;; These functions insert the arrays that define the contents of the
;; headers.

(defun ps-generate-header-line (fonttag &optional content)
  (ps-output "  [ " fonttag " ")
  (cond
   ;; Literal strings should be output as is -- the string must
   ;; contain its own PS string delimiters, '(' and ')', if necessary.
   ((stringp content)
    (ps-output content))

   ;; Functions are called -- they should return strings; they will be
   ;; inserted as strings and the PS string delimiters added.
   ((and (symbolp content) (fboundp content))
    (ps-output-string (funcall content)))

   ;; Variables will have their contents inserted.  They should
   ;; contain strings, and will be inserted as strings.
   ((and (symbolp content) (boundp content))
    (ps-output-string (symbol-value content)))

   ;; Anything else will get turned into an empty string.
   (t
    (ps-output-string "")))
  (ps-output " ]\n"))

(defun ps-generate-header (name contents)
  (ps-output "/" name " [\n")
  (if (> ps-header-lines 0)
      (let ((count 1))
	(ps-generate-header-line "/h0" (car contents))
	(while (and (< count ps-header-lines)
		    (setq contents (cdr contents)))
	  (ps-generate-header-line "/h1" (car contents))
	  (setq count (+ count 1)))
	(ps-output "] def\n"))))

(defun ps-output-boolean (name bool)
  (ps-output (format "/%s %s def\n" name (if bool "true" "false"))))

(defun ps-begin-file ()
  (setq ps-showpage-count 0)

  (ps-output ps-adobe-tag)
  (ps-output "%%Title: " (buffer-name) "\n") ;Take job name from name of
					;first buffer printed
  (ps-output "%%Creator: " (user-full-name) "\n")
  (ps-output "%%CreationDate: " 
	     (time-stamp-hh:mm:ss) " " (time-stamp-mon-dd-yyyy) "\n")
  (ps-output "%% DocumentFonts: Helvetica Helvetica-Bold "
	     ps-font " " ps-font-bold " " ps-font-italic " "
	     ps-font-bold-italic "\n")
  (ps-output "%%Pages: (atend)\n")
  (ps-output "%%EndComments\n\n")

  (ps-output-boolean "Duplex" ps-spool-duplex)
  (ps-output-boolean "PrintHeader" ps-print-header)
  (ps-output-boolean "PrintHeaderFrame" ps-print-header-frame)
  (ps-output-boolean "ShowNofN" ps-show-n-of-n)

  (ps-output (format "/LeftMargin %d def\n" ps-left-margin))
  (ps-output (format "/RightMargin %d def\n" ps-right-margin))
  (ps-output (format "/BottomMargin %d def\n" ps-bottom-margin))
  (ps-output (format "/TopMargin %d def\n" ps-top-margin))

  (ps-get-page-dimensions)
  (ps-output (format "/PrintWidth %d def\n" ps-print-width))
  (ps-output (format "/PrintHeight %d def\n" ps-print-height))
  
  (ps-output (format "/LineHeight %s def\n" ps-line-height))
  
  (ps-output ps-print-prologue)

  (ps-output (format "/f0 %d /%s Font\n" ps-font-size ps-font))
  (ps-output (format "/f1 %d /%s Font\n" ps-font-size ps-font-bold))
  (ps-output (format "/f2 %d /%s Font\n" ps-font-size ps-font-italic))
  (ps-output (format "/f3 %d /%s Font\n" ps-font-size
		     ps-font-bold-italic))

  (ps-output "%%EndPrologue\n"))

(defun ps-header-dirpart ()
  (let ((fname (buffer-file-name)))
    (if fname
	(if (string-equal (buffer-name) (file-name-nondirectory fname))
	    (file-name-directory fname)
	  fname)
      "")))

(defun ps-get-buffer-name ()
  ;; Indulge me this little easter egg:
  (if (string= (buffer-name) "ps-print.el")
      "Hey, Cool!  It's ps-print.el!!!"
    (buffer-name)))

(defun ps-begin-job ()
  (setq ps-page-count 0))

(defun ps-end-file ()
  (ps-output "%%Trailer\n")
  (ps-output "%%Pages: " (format "%d\n" ps-showpage-count)))

(defun ps-next-page ()
  (ps-end-page)
  (ps-flush-output)
  (ps-begin-page))

(defun ps-begin-page (&optional dummypage)
  (ps-get-page-dimensions)
  (setq ps-width-remaining ps-print-width)
  (setq ps-height-remaining ps-print-height)

  ;; If headers are turned on, deduct the height of the header from
  ;; the print height remaining.  Clumsy clumsy clumsy.
  (if ps-print-header
      (setq ps-height-remaining
	    (- ps-height-remaining
	       ps-header-title-line-height
	       (* ps-header-line-height (- ps-header-lines 1))
	       (* 2 ps-header-pad))))

  (setq ps-page-count (+ ps-page-count 1))

  (ps-output "\n%%Page: " 
	     (format "%d %d\n" ps-page-count (+ 1 ps-showpage-count)))
  (ps-output "BeginDSCPage\n")
  (ps-output (format "/PageNumber %d def\n" ps-page-count))
  (ps-output "/PageCount 0 def\n")

  (if ps-print-header
      (progn
	(ps-generate-header "HeaderLinesLeft" ps-left-header)
	(ps-generate-header "HeaderLinesRight" ps-right-header)
	(ps-output (format "%d SetHeaderLines\n" ps-header-lines))))

  (ps-output "BeginPage\n")
  (ps-set-font ps-current-font)
  (ps-set-bg ps-current-bg)
  (ps-set-color ps-current-color)
  (ps-set-underline ps-current-underline-p))

(defun ps-end-page ()
  (setq ps-showpage-count (+ 1 ps-showpage-count))
  (ps-output "EndPage\n")
  (ps-output "EndDSCPage\n"))

(defun ps-dummy-page ()
  (setq ps-showpage-count (+ 1 ps-showpage-count))
  (ps-output "%%Page: " (format "- %d\n" ps-showpage-count)
	     "BeginDSCPage
/PrintHeader false def
BeginPage
EndPage
EndDSCPage\n"))
	    
(defun ps-next-line ()
  (if (< ps-height-remaining ps-line-height)
      (ps-next-page)
    (setq ps-width-remaining ps-print-width)
    (setq ps-height-remaining (- ps-height-remaining ps-line-height))
    (ps-hard-lf)))

(defun ps-continue-line ()
  (if (< ps-height-remaining ps-line-height)
      (ps-next-page)
    (setq ps-width-remaining ps-print-width)
    (setq ps-height-remaining (- ps-height-remaining ps-line-height))
    (ps-soft-lf)))

(defun ps-hard-lf ()
  (ps-output "HL\n"))

(defun ps-soft-lf ()
  (ps-output "SL\n"))

(defun ps-find-wrappoint (from to char-width)
  (let ((avail (truncate (/ ps-width-remaining char-width)))
	(todo (- to from)))
    (if (< todo avail)
	(cons to (* todo char-width))
      (cons (+ from avail) ps-width-remaining))))

(defun ps-basic-plot-string (from to &optional bg-color)
  (let* ((wrappoint (ps-find-wrappoint from to ps-avg-char-width))
	 (to (car wrappoint))
	 (string (buffer-substring from to)))
    (ps-output-string string)
    (ps-output " S\n")			;
    wrappoint))

(defun ps-basic-plot-whitespace (from to &optional bg-color)
  (let* ((wrappoint (ps-find-wrappoint from to ps-space-width))
	 (to (car wrappoint)))

    (ps-output (format "%d W\n" (- to from)))
    wrappoint))

(defun ps-plot (plotfunc from to &optional bg-color)
  (while (< from to)
    (let* ((wrappoint (funcall plotfunc from to bg-color))
	   (plotted-to (car wrappoint))
	   (plotted-width (cdr wrappoint)))
      (setq from plotted-to)
      (setq ps-width-remaining (- ps-width-remaining plotted-width))
      (if (< from to)
	  (ps-continue-line))))
  (if ps-razzle-dazzle
      (let* ((q-todo (- (point-max) (point-min)))
	     (q-done (- (point) (point-min)))
	     (chunkfrac (/ q-todo 8))
	     (chunksize (if (> chunkfrac 1000) 1000 chunkfrac)))
	(if (> (- q-done ps-razchunk) chunksize)
	    (let (foo)
	      (setq ps-razchunk q-done)
	      (setq foo
		    (if (< q-todo 100)
			(/ (* 100 q-done) q-todo)
		      (/ q-done (/ q-todo 100))))
	      (message "Formatting...%d%%" foo))))))

(defun ps-set-font (font)
  (setq ps-current-font font)
  (ps-output (format "/f%d F\n" ps-current-font)))

(defvar ps-print-color-scale nil)

(defun ps-set-bg (color)
  (if (setq ps-current-bg color)
      (ps-output (format ps-color-format (nth 0 color) (nth 1 color)
			 (nth 2 color))
		 " true BG\n")
    (ps-output "false BG\n")))

(defun ps-set-color (color)
  (if (setq ps-current-color color)
      nil
    (setq ps-current-color ps-default-fg))
  (ps-output (format ps-color-format (nth 0 ps-current-color)
		     (nth 1 ps-current-color) (nth 2 ps-current-color))
	     " FG\n"))

(defun ps-set-underline (underline-p)
  (ps-output (if underline-p "true" "false") " UL\n")
  (setq ps-current-underline-p underline-p))

(defun ps-plot-region (from to font fg-color &optional bg-color underline-p)

  (if (not (equal font ps-current-font))
      (ps-set-font font))
  
  ;; Specify a foreground color only if one's specified and it's
  ;; different than the current.
  (if (not (equal fg-color ps-current-color))
      (ps-set-color fg-color))
  
  (if (not (equal bg-color ps-current-bg))
      (ps-set-bg bg-color))
  
  ;; Toggle underlining if different.
  (if (not (equal underline-p ps-current-underline-p))
      (ps-set-underline underline-p))

  ;; Starting at the beginning of the specified region...
  (save-excursion
    (goto-char from)

    ;; ...break the region up into chunks separated by tabs, linefeeds,
    ;; and pagefeeds, and plot each chunk.
    (while (< from to)
      (if (re-search-forward "[\t\n\f]" to t)
          (let ((match (char-after (match-beginning 0))))
            (cond
	     ((= match ?\t)
	      (let ((linestart
		     (save-excursion (beginning-of-line) (point))))
		(ps-plot 'ps-basic-plot-string from (- (point) 1)
			 bg-color)
		(forward-char -1)
		(setq from (+ linestart (current-column)))
		(if (re-search-forward "[ \t]+" to t)
		    (ps-plot 'ps-basic-plot-whitespace
			     from (+ linestart (current-column))
			     bg-color))))

	     ((= match ?\n)
	      (ps-plot 'ps-basic-plot-string from (- (point) 1)
		       bg-color)
	      (ps-next-line)
	      )

	     ((= match ?\f)
	      (ps-plot 'ps-basic-plot-string from (- (point) 1)
		       bg-color)
	      (ps-next-page)))
            (setq from (point)))
        (ps-plot 'ps-basic-plot-string from to bg-color)
        (setq from to)))))

(defun ps-color-value (x-color-value)
  ;; Scale 16-bit X-COLOR-VALUE to PostScript color value in [0, 1] interval.
  (/ x-color-value ps-print-color-scale))

(defun ps-color-values (x-color)
  (cond ((fboundp 'x-color-values)
	 (x-color-values x-color))
	((fboundp 'pixel-components)
	 (pixel-components x-color))
	(t (error "No available function to determine X color values."))))

(defun ps-face-attributes (face)
  (let ((differs (face-differs-from-default-p face)))
    (list (memq face ps-ref-bold-faces)
	  (memq face ps-ref-italic-faces)
	  (memq face ps-ref-underlined-faces)
	  (and differs (face-foreground face))
	  (and differs (face-background face)))))

(defun ps-face-attribute-list (face-or-list)
  (if (listp face-or-list)
      (let (bold-p italic-p underline-p foreground background face-attr face)
	(while face-or-list
	  (setq face (car face-or-list))
	  (setq face-attr (ps-face-attributes face))
	  (setq bold-p (or bold-p (nth 0 face-attr)))
	  (setq italic-p (or italic-p (nth 1 face-attr)))
	  (setq underline-p (or underline-p (nth 2 face-attr)))
	  (if foreground
	      nil
	    (setq foreground (nth 3 face-attr)))
	  (if background
	      nil
	    (setq background (nth 4 face-attr)))
	  (setq face-or-list (cdr face-or-list)))
	(list bold-p italic-p underline-p foreground background))

    (ps-face-attributes face-or-list)))

(defun ps-plot-with-face (from to face)
  (if face
      (let* ((face-attr (ps-face-attribute-list face))
	     (bold-p (nth 0 face-attr))
	     (italic-p (nth 1 face-attr))
	     (underline-p (nth 2 face-attr))
	     (foreground (nth 3 face-attr))
	     (background (nth 4 face-attr))
	     (fg-color (if (and ps-print-color-p foreground)
			   (mapcar 'ps-color-value
				   (ps-color-values foreground))
			 ps-default-color))
	     (bg-color (if (and ps-print-color-p background)
			   (mapcar 'ps-color-value
				   (ps-color-values background)))))
	(ps-plot-region from to
			(cond ((and bold-p italic-p) 3)
			      (italic-p 2)
			      (bold-p 1)
			      (t 0))
;			(or fg-color '(0.0 0.0 0.0))
			fg-color
			bg-color underline-p))
    (goto-char to)))


(defun ps-emacs-face-kind-p (face kind kind-regex kind-list)
  (let ((frame-font (face-font face))
	(face-defaults (face-font face t)))
    (or
     ;; Check FACE defaults:
     (and (listp face-defaults)
	  (memq kind face-defaults))

     ;; Check the user's preferences
     (memq face kind-list))))

(defun ps-xemacs-face-kind-p (face kind kind-regex kind-list)
  (let* ((frame-font (or (face-font face) (face-font 'default)))
	 (kind-cons (assq kind (x-font-properties frame-font)))
	 (kind-spec (cdr-safe kind-cons))
	 (case-fold-search t))

    (or (and kind-spec (string-match kind-regex kind-spec))
	;; Kludge-compatible:
	(memq face kind-list))))

(defun ps-face-bold-p (face)
  (if (eq ps-print-emacs-type 'emacs)
      (ps-emacs-face-kind-p face 'bold "-\\(bold\\|demibold\\)-"
			  ps-bold-faces)
    (ps-xemacs-face-kind-p face 'WEIGHT_NAME "bold\\|demibold"
			   ps-bold-faces)))

(defun ps-face-italic-p (face)
  (if (eq ps-print-emacs-type 'emacs)
      (ps-emacs-face-kind-p face 'italic "-[io]-" ps-italic-faces)
    (or
     (ps-xemacs-face-kind-p face 'ANGLE_NAME "i\\|o" ps-italic-faces)
     (ps-xemacs-face-kind-p face 'SLANT "i\\|o" ps-italic-faces))))

(defun ps-face-underlined-p (face)
  (or (face-underline-p face)
      (memq face ps-underlined-faces)))

;; Ensure that face-list is fbound.
(or (fboundp 'face-list) (defalias 'face-list 'list-faces))

(defun ps-build-reference-face-lists ()
  (if ps-auto-font-detect
      (let ((faces (face-list))
	    the-face)
	(setq ps-ref-bold-faces nil
	      ps-ref-italic-faces nil
	      ps-ref-underlined-faces nil)
	(while faces
	  (setq the-face (car faces))
	  (if (ps-face-italic-p the-face)
	      (setq ps-ref-italic-faces
		    (cons the-face ps-ref-italic-faces)))
	  (if (ps-face-bold-p the-face)
	      (setq ps-ref-bold-faces
		    (cons the-face ps-ref-bold-faces)))
	  (if (ps-face-underlined-p the-face)
	      (setq ps-ref-underlined-faces
		    (cons the-face ps-ref-underlined-faces)))
	  (setq faces (cdr faces))))
    (setq ps-ref-bold-faces ps-bold-faces)
    (setq ps-ref-italic-faces ps-italic-faces)
    (setq ps-ref-underlined-faces ps-underlined-faces))
  (setq ps-build-face-reference nil))

(defun ps-mapper (extent list)
  (nconc list (list (list (extent-start-position extent) 'push extent)
                    (list (extent-end-position extent) 'pull extent)))
  nil)

(defun ps-sorter (a b)
  (< (car a) (car b)))

(defun ps-extent-sorter (a b)
  (< (extent-priority a) (extent-priority b)))

(defun ps-print-ensure-fontified (start end)
  (if (and (boundp 'lazy-lock-mode) lazy-lock-mode)
      (if (fboundp 'lazy-lock-fontify-region)
          (lazy-lock-fontify-region start end)
        (lazy-lock-fontify-buffer))))

(defun ps-generate-postscript-with-faces (from to)
  ;; Build the reference lists of faces if necessary.
  (if (or ps-always-build-face-reference
	  ps-build-face-reference)
      (progn
	(message "Collecting face information...")
	(ps-build-reference-face-lists)))
  ;; Set the color scale.  We do it here instead of in the defvar so
  ;; that ps-print can be dumped into emacs.  This expression can't be
  ;; evaluated at dump-time because X isn't initialized.
  (setq ps-print-color-scale
	(if ps-print-color-p
	    (float (car (ps-color-values "white")))
	  1.0))
  ;; Generate some PostScript.
  (save-restriction
    (narrow-to-region from to)
    (let ((face 'default)
	  (position to))
      (ps-print-ensure-fontified from to)
      (cond ((or (eq ps-print-emacs-type 'lucid) (eq ps-print-emacs-type 'xemacs))
	   ;; Build the list of extents...
	   (let ((a (cons 'dummy nil))
		 record type extent extent-list)
	     (map-extents 'ps-mapper nil from to a)
	     (setq a (cdr a))
	     (setq a (sort a 'ps-sorter))
	   
	     (setq extent-list nil)
	   
	     ;; Loop through the extents...
	     (while a
	       (setq record (car a))
	     
	       (setq position (car record))
	       (setq record (cdr record))
	     
	       (setq type (car record))
	       (setq record (cdr record))
	     
	       (setq extent (car record))
	     
	       ;; Plot up to this record.
	       ;; XEmacs 19.12: for some reason, we're getting into a
	       ;; situation in which some of the records have
	       ;; positions less than 'from'.  Since we've narrowed
	       ;; the buffer, this'll generate errors.  This is a
	       ;; hack, but don't call ps-plot-with-face unless from >
	       ;; point-min.
	       (if (and (>= from (point-min))
			(<= position (point-max)))
		   (ps-plot-with-face from position face))
	     
	       (cond
		((eq type 'push)
		 (if (extent-face extent)
		     (setq   extent-list (sort (cons extent extent-list)
					       'ps-extent-sorter))))
	      
		((eq type 'pull)
		 (setq extent-list (sort (delq extent extent-list)
					 'ps-extent-sorter))))
	     
	       (setq face
		     (if extent-list
			 (extent-face (car extent-list))
		       'default))
	     
	       (setq from position)
	       (setq a (cdr a)))))

	    ((eq ps-print-emacs-type 'emacs)
	     (let ((property-change from)
		   (overlay-change from))
	       (while (< from to)
		 (if (< property-change to) ; Don't search for property change
					; unless previous search succeeded.
		     (setq property-change
			   (next-property-change from nil to)))
		 (if (< overlay-change to) ; Don't search for overlay change
					; unless previous search succeeded.
		     (setq overlay-change
			   (min (next-overlay-change from) to)))
		 (setq position
		       (min property-change overlay-change))
		 ;; The code below is not quite correct,
		 ;; because a non-nil overlay invisible property
		 ;; which is inactive according to the current value
		 ;; of buffer-invisibility-spec nonetheless overrides
		 ;; a face text property.
		 (setq face
		       (cond ((let ((prop (get-text-property from 'invisible)))
				;; Decide whether this invisible property
				;; really makes the text invisible.
				(if (eq buffer-invisibility-spec t)
				    (not (null prop))
				  (or (memq prop buffer-invisibility-spec)
				      (assq prop buffer-invisibility-spec))))
			      nil)
			     ((get-text-property from 'face))
			     (t 'default)))
		 (let ((overlays (overlays-at from))
		       (face-priority -1)) ; text-property
		   (while overlays
		     (let* ((overlay (car overlays))
			    (overlay-face (overlay-get overlay 'face))
			    (overlay-invisible (overlay-get overlay 'invisible))
			    (overlay-priority (or (overlay-get overlay
							       'priority)
						  0)))
		       (if (and (or overlay-invisible overlay-face)
				(> overlay-priority face-priority))
			   (setq face (cond ((if (eq buffer-invisibility-spec t)
						 (not (null overlay-invisible))
					       (or (memq overlay-invisible buffer-invisibility-spec)
						   (assq overlay-invisible buffer-invisibility-spec)))
					     nil)
					    ((and face overlay-face)))
				 face-priority overlay-priority)))
		     (setq overlays (cdr overlays))))
		 ;; Plot up to this record.
		 (ps-plot-with-face from position face)
		 (setq from position)))))
      (ps-plot-with-face from to face))))  

(defun ps-generate-postscript (from to)
  (ps-plot-region from to 0 nil))

(defun ps-generate (buffer from to genfunc)
  (let ((from (min to from))
	(to (max to from))
	;; This avoids trouble if chars with read-only properties
	;; are copied into ps-spool-buffer.
	(inhibit-read-only t))
    (save-restriction
      (narrow-to-region from to)
      (if ps-razzle-dazzle
	  (message "Formatting...%d%%" (setq ps-razchunk 0)))
      (set-buffer buffer)
      (setq ps-source-buffer buffer)
      (setq ps-spool-buffer (get-buffer-create ps-spool-buffer-name))
      (ps-init-output-queue)
      (let (safe-marker completed-safely needs-begin-file)
	(unwind-protect
	    (progn
	      (set-buffer ps-spool-buffer)
	    
	      ;; Get a marker and make it point to the current end of the
	      ;; buffer,  If an error occurs, we'll delete everything from
	      ;; the end of this marker onwards.
	      (setq safe-marker (make-marker))
	      (set-marker safe-marker (point-max))
	    
	      (goto-char (point-min))
	      (if (looking-at (regexp-quote "%!PS-Adobe-1.0"))
		  nil
		(setq needs-begin-file t))
	      (save-excursion
		(set-buffer ps-source-buffer)
		(if needs-begin-file (ps-begin-file))
		(ps-begin-job)
		(ps-begin-page))
	      (set-buffer ps-source-buffer)
	      (funcall genfunc from to)
	      (ps-end-page)
	    
	      (if (and ps-spool-duplex
		       (= (mod ps-page-count 2) 1))
		  (ps-dummy-page))
	      (ps-flush-output)
	    
	      ;; Back to the PS output buffer to set the page count
	      (set-buffer ps-spool-buffer)
	      (goto-char (point-max))
	      (while (re-search-backward "^/PageCount 0 def$" nil t)
		(replace-match (format "/PageCount %d def" ps-page-count) t))

	      ;; Setting this variable tells the unwind form that the
	      ;; the postscript was generated without error.
	      (setq completed-safely t))

	  ;; Unwind form: If some bad mojo occurred while generating
	  ;; postscript, delete all the postscript that was generated.
	  ;; This protects the previously spooled files from getting
	  ;; corrupted.
	  (if (and (markerp safe-marker) (not completed-safely))
	      (progn
		(set-buffer ps-spool-buffer)
		(delete-region (marker-position safe-marker) (point-max))))))

      (if ps-razzle-dazzle
	  (message "Formatting...done")))))

(defun ps-do-despool (filename)
  (if (or (not (boundp 'ps-spool-buffer))
	  (not ps-spool-buffer))
      (message "No spooled PostScript to print")
    (ps-end-file)
    (ps-flush-output)
    (if filename
	(save-excursion
	  (if ps-razzle-dazzle
	      (message "Saving..."))
	  (set-buffer ps-spool-buffer)
	  (setq filename (expand-file-name filename))
	  (write-region (point-min) (point-max) filename)
	  (if ps-razzle-dazzle
	      (message "Wrote %s" filename)))
      ;; Else, spool to the printer
      (if ps-razzle-dazzle
	  (message "Printing..."))
      (save-excursion
	(set-buffer ps-spool-buffer)
	(if (and (eq system-type 'ms-dos) (stringp dos-ps-printer))
	    (write-region (point-min) (point-max) dos-ps-printer t 0)
	  (let ((binary-process-input t)) ; for MS-DOS
	    (apply 'call-process-region
		   (point-min) (point-max) ps-lpr-command nil
		   (if (fboundp 'start-process) 0 nil)
		   nil
		   ps-lpr-switches))))
      (if ps-razzle-dazzle
	  (message "Printing...done")))
    (kill-buffer ps-spool-buffer)))

(defun ps-kill-emacs-check ()
  (let (ps-buffer)
    (if (and (setq ps-buffer (get-buffer ps-spool-buffer-name))
	     (buffer-modified-p ps-buffer))
	(if (y-or-n-p "Unprinted PostScript waiting; print now? ")
	    (ps-despool)))
    (if (and (setq ps-buffer (get-buffer ps-spool-buffer-name))
	     (buffer-modified-p ps-buffer))
	(if (yes-or-no-p "Unprinted PostScript waiting; exit anyway? ")
	    nil
	  (error "Unprinted PostScript")))))

(if (fboundp 'add-hook)
    (add-hook 'kill-emacs-hook 'ps-kill-emacs-check)
  (if kill-emacs-hook
      (message "Won't override existing kill-emacs-hook")
    (setq kill-emacs-hook 'ps-kill-emacs-check)))

;;; Sample Setup Code:

;; This stuff is for anybody that's brave enough to look this far,
;; and able to figure out how to use it.  It isn't really part of ps-
;; print, but I'll leave it here in hopes it might be useful:

;; WARNING!!! The following code is *sample* code only. Don't use it
;; unless you understand what it does!

(defmacro ps-prsc () (list 'if (list 'eq 'ps-print-emacs-type ''emacs)
			   [f22] ''f22))
(defmacro ps-c-prsc () (list 'if (list 'eq 'ps-print-emacs-type ''emacs)
			     [C-f22]
			     ''(control f22)))
(defmacro ps-s-prsc () (list 'if (list 'eq 'ps-print-emacs-type ''emacs)
			     [S-f22]
			     ''(shift f22)))

;; Look in an article or mail message for the Subject: line.  To be
;; placed in ps-left-headers.
(defun ps-article-subject ()
  (save-excursion
    (goto-char (point-min))
    (if (re-search-forward "^Subject:[ \t]+\\(.*\\)$")
	(buffer-substring (match-beginning 1) (match-end 1))
      "Subject ???")))

;; Look in an article or mail message for the From: line.  Sorta-kinda
;; understands RFC-822 addresses and can pull the real name out where
;; it's provided.  To be placed in ps-left-headers.
(defun ps-article-author ()
  (save-excursion
    (goto-char (point-min))
    (if (re-search-forward "^From:[ \t]+\\(.*\\)$")
	(let ((fromstring (buffer-substring (match-beginning 1) (match-end 1))))
	  (cond

	   ;; Try first to match addresses that look like
	   ;; thompson@wg2.waii.com (Jim Thompson)
	   ((string-match ".*[ \t]+(\\(.*\\))" fromstring)
	    (substring fromstring (match-beginning 1) (match-end 1)))

	   ;; Next try to match addresses that look like
	   ;; Jim Thompson <thompson@wg2.waii.com>
	   ((string-match "\\(.*\\)[ \t]+<.*>" fromstring)
	    (substring fromstring (match-beginning 1) (match-end 1)))

	   ;; Couldn't find a real name -- show the address instead.
	   (t fromstring)))
      "From ???")))

;; A hook to bind to gnus-Article-prepare-hook.  This will set the ps-
;; left-headers specially for gnus articles.  Unfortunately, gnus-
;; article-mode-hook is called only once, the first time the *Article*
;; buffer enters that mode, so it would only work for the first time
;; we ran gnus.  The second time, this hook wouldn't get set up.  The
;; only alternative is gnus-article-prepare-hook.
(defun ps-gnus-article-prepare-hook ()
  (setq ps-header-lines 3)
  (setq ps-left-header
	;; The left headers will display the article's subject, its
	;; author, and the newsgroup it was in.
	(list 'ps-article-subject 'ps-article-author 'gnus-newsgroup-name)))

;; A hook to bind to vm-mode-hook to locally bind prsc and set the ps-
;; left-headers specially for mail messages.  This header setup would
;; also work, I think, for RMAIL.
(defun ps-vm-mode-hook ()
  (local-set-key (ps-prsc) 'ps-vm-print-message-from-summary)
  (setq ps-header-lines 3)
  (setq ps-left-header
	;; The left headers will display the message's subject, its
	;; author, and the name of the folder it was in.
	(list 'ps-article-subject 'ps-article-author 'buffer-name)))

;; Every now and then I forget to switch from the *Summary* buffer to
;; the *Article* before hitting prsc, and a nicely formatted list of
;; article subjects shows up at the printer.  This function, bound to
;; prsc for the gnus *Summary* buffer means I don't have to switch
;; buffers first.
(defun ps-gnus-print-article-from-summary ()
  (interactive)
  (if (get-buffer "*Article*")
      (save-excursion
	(set-buffer "*Article*")
	(ps-spool-buffer-with-faces))))

;; See ps-gnus-print-article-from-summary.  This function does the
;; same thing for vm.
(defun ps-vm-print-message-from-summary ()
  (interactive)
  (if vm-mail-buffer
      (save-excursion
	(set-buffer vm-mail-buffer)
	(ps-spool-buffer-with-faces))))

;; A hook to bind to bind to gnus-summary-setup-buffer to locally bind
;; prsc.
(defun ps-gnus-summary-setup ()
  (local-set-key (ps-prsc) 'ps-gnus-print-article-from-summary))

;; Look in an article or mail message for the Subject: line.  To be
;; placed in ps-left-headers.
(defun ps-info-file ()
  (save-excursion
    (goto-char (point-min))
    (if (re-search-forward "File:[ \t]+\\([^, \t\n]*\\)")
	(buffer-substring (match-beginning 1) (match-end 1))
      "File ???")))

;; Look in an article or mail message for the Subject: line.  To be
;; placed in ps-left-headers.
(defun ps-info-node ()
  (save-excursion
    (goto-char (point-min))
    (if (re-search-forward "Node:[ \t]+\\([^,\t\n]*\\)")
	(buffer-substring (match-beginning 1) (match-end 1))
      "Node ???")))

(defun ps-info-mode-hook ()
  (setq ps-left-header
	;; The left headers will display the node name and file name.
	(list 'ps-info-node 'ps-info-file)))

;; WARNING! The following function is a *sample* only, and is *not*
;; meant to be used as a whole unless you understand what the effects
;; will be!  (In fact, this is a copy if my setup for ps-print -- I'd
;; be very surprised if it was useful to *anybody*, without
;; modification.)

(defun ps-jts-ps-setup ()
  (global-set-key (ps-prsc) 'ps-spool-buffer-with-faces) ;f22 is prsc
  (global-set-key (ps-s-prsc) 'ps-spool-region-with-faces)
  (global-set-key (ps-c-prsc) 'ps-despool)
  (add-hook 'gnus-article-prepare-hook 'ps-gnus-article-prepare-hook)
  (add-hook 'gnus-summary-mode-hook 'ps-gnus-summary-setup)
  (add-hook 'vm-mode-hook 'ps-vm-mode-hook)
  (add-hook 'vm-mode-hooks 'ps-vm-mode-hook)
  (add-hook 'Info-mode-hook 'ps-info-mode-hook)
  (setq ps-spool-duplex t)
  (setq ps-print-color-p nil)
  (setq ps-lpr-command "lpr")
  (setq ps-lpr-switches '("-Jjct,duplex_long")))

(provide 'ps-print)

;;; ps-print.el ends here
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.