]>
Commit | Line | Data |
---|---|---|
641f3d83 MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
4 | * Common text filter routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 1997-1999 by Easy Software Products. | |
7 | * | |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE.txt" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636-3111 USA | |
19 | * | |
20 | * Voice: (301) 373-9603 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * Contents: | |
25 | * | |
26 | * TextMain() - Standard main entry for text filters. | |
27 | * compare_keywords() - Compare two C/C++ keywords. | |
28 | * getutf8() - Get a UTF-8 encoded wide character... | |
29 | */ | |
30 | ||
31 | /* | |
32 | * Include necessary headers... | |
33 | */ | |
34 | ||
35 | #include "textcommon.h" | |
36 | ||
37 | ||
38 | /* | |
39 | * Globals... | |
40 | */ | |
41 | ||
42 | int WrapLines = 1, /* Wrap text in lines */ | |
43 | SizeLines = 60, /* Number of lines on a page */ | |
44 | SizeColumns = 80, /* Number of columns on a line */ | |
45 | PageColumns = 1, /* Number of columns on a page */ | |
46 | ColumnGutter = 0, /* Number of characters between text columns */ | |
47 | ColumnWidth = 80, /* Width of each column */ | |
48 | PrettyPrint = 0, /* Do pretty code formatting */ | |
49 | Copies = 1; /* Number of copies */ | |
50 | lchar_t **Page = NULL; /* Page characters */ | |
51 | int NumPages = 0; /* Number of pages in document */ | |
52 | int CharsPerInch = 10; /* Number of character columns per inch */ | |
53 | int LinesPerInch = 6; /* Number of lines per inch */ | |
54 | int UTF8 = 0; /* Use UTF-8 encoding? */ | |
55 | char *Keywords[] = /* List of known keywords... */ | |
56 | { | |
57 | "and", | |
58 | "and_eq", | |
59 | "asm", | |
60 | "auto", | |
61 | "bitand", | |
62 | "bitor", | |
63 | "bool", | |
64 | "break", | |
65 | "case", | |
66 | "catch", | |
67 | "char", | |
68 | "class", | |
69 | "compl", | |
70 | "const", | |
71 | "continue", | |
72 | "default", | |
73 | "delete", | |
74 | "do", | |
75 | "double", | |
76 | "else", | |
77 | "enum", | |
78 | "explicit", | |
79 | "extern", | |
80 | "false", | |
81 | "float", | |
82 | "for", | |
83 | "friend", | |
84 | "goto", | |
85 | "if", | |
86 | "inline", | |
87 | "int", | |
88 | "long", | |
89 | "mutable", | |
90 | "namespace", | |
91 | "new", | |
92 | "not", | |
93 | "not_eq", | |
94 | "operator", | |
95 | "or", | |
96 | "or_eq", | |
97 | "private", | |
98 | "protected", | |
99 | "public", | |
100 | "register", | |
101 | "return", | |
102 | "short", | |
103 | "signed", | |
104 | "sizeof", | |
105 | "static", | |
106 | "struct", | |
107 | "switch", | |
108 | "template", | |
109 | "this", | |
110 | "throw", | |
111 | "true", | |
112 | "try", | |
113 | "typedef", | |
114 | "typename", | |
115 | "union", | |
116 | "unsigned", | |
117 | "virtual", | |
118 | "void", | |
119 | "volatile", | |
120 | "while", | |
121 | "xor", | |
122 | "xor_eq" | |
123 | }; | |
124 | ||
125 | ||
126 | /* | |
127 | * Local functions... | |
128 | */ | |
129 | ||
130 | static int compare_keywords(const void *, const void *); | |
131 | static int getutf8(FILE *fp); | |
132 | ||
133 | ||
134 | /* | |
135 | * 'TextMain()' - Standard main entry for text filters. | |
136 | */ | |
137 | ||
138 | int /* O - Exit status */ | |
139 | TextMain(char *name, /* I - Name of filter */ | |
140 | int argc, /* I - Number of command-line arguments */ | |
141 | char *argv[]) /* I - Command-line arguments */ | |
142 | { | |
143 | FILE *fp; /* Print file */ | |
144 | ppd_file_t *ppd; /* PPD file */ | |
145 | int i, /* Looping var */ | |
146 | ch, /* Current char from file */ | |
147 | lastch, /* Previous char from file */ | |
148 | attr, /* Current attribute */ | |
149 | line, /* Current line */ | |
150 | column, /* Current column */ | |
151 | page_column; /* Current page column */ | |
152 | int num_options; /* Number of print options */ | |
153 | cups_option_t *options; /* Print options */ | |
154 | const char *val; /* Option value */ | |
155 | char keyword[64], /* Keyword string */ | |
156 | *keyptr; /* Pointer into string */ | |
157 | int keycol; /* Column where keyword starts */ | |
158 | int ccomment; /* Inside a C-style comment? */ | |
159 | int cstring; /* Inside a C string */ | |
160 | ||
161 | ||
162 | if (argc < 6 || argc > 7) | |
163 | { | |
164 | fprintf(stderr, "ERROR: %s job-id user title copies options [file]\n", | |
165 | name); | |
166 | return (1); | |
167 | } | |
168 | ||
169 | /* | |
170 | * If we have 7 arguments, print the file named on the command-line. | |
171 | * Otherwise, send stdin instead... | |
172 | */ | |
173 | ||
174 | if (argc == 6) | |
175 | fp = stdin; | |
176 | else | |
177 | { | |
178 | /* | |
179 | * Try to open the print file... | |
180 | */ | |
181 | ||
182 | if ((fp = fopen(argv[6], "rb")) == NULL) | |
183 | { | |
184 | perror("ERROR: unable to open print file - "); | |
185 | return (1); | |
186 | } | |
187 | } | |
188 | ||
189 | /* | |
190 | * Process command-line options and write the prolog... | |
191 | */ | |
192 | ||
193 | options = NULL; | |
194 | num_options = cupsParseOptions(argv[5], 0, &options); | |
195 | ||
196 | if ((val = cupsGetOption("prettyprint", num_options, options)) != NULL) | |
197 | { | |
198 | PrettyPrint = 1; | |
199 | PageLeft = 72.0f; | |
200 | PageRight = PageWidth - 36.0f; | |
201 | PageBottom = PageBottom > 36.0f ? PageBottom : 36.0f; | |
202 | PageTop = PageLength - 36.0f; | |
203 | CharsPerInch = 12; | |
204 | LinesPerInch = 8; | |
205 | } | |
206 | ||
207 | if ((ppd = SetCommonOptions(num_options, options, 1)) != NULL) | |
208 | ppdClose(ppd); | |
209 | ||
210 | WrapLines = cupsGetOption("nowrap", num_options, options) == NULL; | |
211 | ||
212 | if ((val = cupsGetOption("columns", num_options, options)) != NULL) | |
213 | PageColumns = atoi(val); | |
214 | ||
215 | if ((val = cupsGetOption("cpi", num_options, options)) != NULL) | |
216 | CharsPerInch = atoi(val); | |
217 | ||
218 | if ((val = cupsGetOption("lpi", num_options, options)) != NULL) | |
219 | LinesPerInch = atoi(val); | |
220 | ||
221 | if ((val = cupsGetOption("prettyprint", num_options, options)) != NULL) | |
222 | PageTop -= 216.0f / LinesPerInch; | |
223 | ||
224 | Copies = atoi(argv[4]); | |
225 | ||
226 | WriteProlog(argv[3], argv[2], ppd); | |
227 | ||
228 | /* | |
229 | * Read text from the specified source and print it... | |
230 | */ | |
231 | ||
232 | column = 0; | |
233 | line = 0; | |
234 | page_column = 0; | |
235 | attr = 0; | |
236 | keyptr = keyword; | |
237 | keycol = 0; | |
238 | ccomment = 0; | |
239 | cstring = 0; | |
240 | ||
241 | while ((ch = getutf8(fp)) >= 0) | |
242 | { | |
243 | /* | |
244 | * Control codes: | |
245 | * | |
246 | * BS Backspace (0x08) | |
247 | * HT Horizontal tab; next 8th column (0x09) | |
248 | * LF Line feed; forward full line (0x0a) | |
249 | * VT Vertical tab; reverse full line (0x0b) | |
250 | * FF Form feed (0x0c) | |
251 | * CR Carriage return (0x0d) | |
252 | * ESC 7 Reverse full line (0x1b 0x37) | |
253 | * ESC 8 Reverse half line (0x1b 0x38) | |
254 | * ESC 9 Forward half line (0x1b 0x39) | |
255 | */ | |
256 | ||
257 | switch (ch) | |
258 | { | |
259 | case 0x08 : /* BS - backspace for boldface & underline */ | |
260 | if (column > 0) | |
261 | column --; | |
262 | ||
263 | keyptr = keyword; | |
264 | keycol = column; | |
265 | break; | |
266 | ||
267 | case 0x09 : /* HT - tab to next 8th column */ | |
268 | if (PrettyPrint && keyptr > keyword) | |
269 | { | |
270 | *keyptr = '\0'; | |
271 | keyptr = keyword; | |
272 | ||
273 | if (bsearch(&keyptr, Keywords, sizeof(Keywords) / sizeof(Keywords[0]), | |
274 | sizeof(Keywords[0]), compare_keywords)) | |
275 | { | |
276 | /* | |
277 | * Put keywords in boldface... | |
278 | */ | |
279 | ||
280 | i = page_column * (ColumnWidth + ColumnGutter); | |
281 | ||
282 | while (keycol < column) | |
283 | { | |
284 | Page[line][keycol + i].attr |= ATTR_BOLD; | |
285 | keycol ++; | |
286 | } | |
287 | } | |
288 | } | |
289 | ||
290 | column = (column + 8) & ~7; | |
291 | ||
292 | if (column >= ColumnWidth && WrapLines) | |
293 | { /* Wrap text to margins */ | |
294 | line ++; | |
295 | column = 0; | |
296 | ||
297 | if (line >= SizeLines) | |
298 | { | |
299 | page_column ++; | |
300 | line = 0; | |
301 | ||
302 | if (page_column >= PageColumns) | |
303 | { | |
304 | WritePage(); | |
305 | page_column = 0; | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
310 | keycol = column; | |
311 | break; | |
312 | ||
313 | case 0x0a : /* LF - output current line */ | |
314 | if (PrettyPrint && keyptr > keyword) | |
315 | { | |
316 | *keyptr = '\0'; | |
317 | keyptr = keyword; | |
318 | ||
319 | if (bsearch(&keyptr, Keywords, sizeof(Keywords) / sizeof(Keywords[0]), | |
320 | sizeof(Keywords[0]), compare_keywords)) | |
321 | { | |
322 | /* | |
323 | * Put keywords in boldface... | |
324 | */ | |
325 | ||
326 | i = page_column * (ColumnWidth + ColumnGutter); | |
327 | ||
328 | while (keycol < column) | |
329 | { | |
330 | Page[line][keycol + i].attr |= ATTR_BOLD; | |
331 | keycol ++; | |
332 | } | |
333 | } | |
334 | } | |
335 | ||
336 | line ++; | |
337 | column = 0; | |
338 | keycol = 0; | |
339 | ||
340 | if (!ccomment && !cstring) | |
341 | attr &= ~(ATTR_ITALIC | ATTR_BOLD | ATTR_RED | ATTR_GREEN | ATTR_BLUE); | |
342 | ||
343 | if (line >= SizeLines) | |
344 | { | |
345 | page_column ++; | |
346 | line = 0; | |
347 | ||
348 | if (page_column >= PageColumns) | |
349 | { | |
350 | WritePage(); | |
351 | page_column = 0; | |
352 | } | |
353 | } | |
354 | break; | |
355 | ||
356 | case 0x0b : /* VT - move up 1 line */ | |
357 | if (line > 0) | |
358 | line --; | |
359 | ||
360 | keyptr = keyword; | |
361 | keycol = column; | |
362 | ||
363 | if (!ccomment && !cstring) | |
364 | attr &= ~(ATTR_ITALIC | ATTR_BOLD | ATTR_RED | ATTR_GREEN | ATTR_BLUE); | |
365 | break; | |
366 | ||
367 | case 0x0c : /* FF - eject current page... */ | |
368 | if (PrettyPrint && keyptr > keyword) | |
369 | { | |
370 | *keyptr = '\0'; | |
371 | keyptr = keyword; | |
372 | ||
373 | if (bsearch(&keyptr, Keywords, sizeof(Keywords) / sizeof(Keywords[0]), | |
374 | sizeof(Keywords[0]), compare_keywords)) | |
375 | { | |
376 | /* | |
377 | * Put keywords in boldface... | |
378 | */ | |
379 | ||
380 | i = page_column * (ColumnWidth + ColumnGutter); | |
381 | ||
382 | while (keycol < column) | |
383 | { | |
384 | Page[line][keycol + i].attr |= ATTR_BOLD; | |
385 | keycol ++; | |
386 | } | |
387 | } | |
388 | } | |
389 | ||
390 | page_column ++; | |
391 | column = 0; | |
392 | keycol = 0; | |
393 | line = 0; | |
394 | ||
395 | if (!ccomment && !cstring) | |
396 | attr &= ~(ATTR_ITALIC | ATTR_BOLD | ATTR_RED | ATTR_GREEN | ATTR_BLUE); | |
397 | ||
398 | if (page_column >= PageColumns) | |
399 | { | |
400 | WritePage(); | |
401 | page_column = 0; | |
402 | } | |
403 | break; | |
404 | ||
405 | case 0x0d : /* CR */ | |
406 | column = 0; | |
407 | break; | |
408 | ||
409 | case 0x1b : /* Escape sequence */ | |
410 | ch = getutf8(fp); | |
411 | if (ch == '7') | |
412 | { | |
413 | /* | |
414 | * ESC 7 Reverse full line (0x1b 0x37) | |
415 | */ | |
416 | ||
417 | if (line > 0) | |
418 | line --; | |
419 | } | |
420 | else if (ch == '8') | |
421 | { | |
422 | /* | |
423 | * ESC 8 Reverse half line (0x1b 0x38) | |
424 | */ | |
425 | ||
426 | if ((attr & ATTR_RAISED) && line > 0) | |
427 | { | |
428 | attr &= ~ATTR_RAISED; | |
429 | line --; | |
430 | } | |
431 | else if (attr & ATTR_LOWERED) | |
432 | attr &= ~ATTR_LOWERED; | |
433 | else | |
434 | attr |= ATTR_RAISED; | |
435 | } | |
436 | else if (ch == '9') | |
437 | { | |
438 | /* | |
439 | * ESC 9 Forward half line (0x1b 0x39) | |
440 | */ | |
441 | ||
442 | if ((attr & ATTR_LOWERED) && line < (SizeLines - 1)) | |
443 | { | |
444 | attr &= ~ATTR_LOWERED; | |
445 | line ++; | |
446 | } | |
447 | else if (attr & ATTR_RAISED) | |
448 | attr &= ~ATTR_RAISED; | |
449 | else | |
450 | attr |= ATTR_LOWERED; | |
451 | } | |
452 | break; | |
453 | ||
454 | default : /* All others... */ | |
455 | if (ch < ' ') | |
456 | break; /* Ignore other control chars */ | |
457 | ||
458 | if (PrettyPrint) | |
459 | { | |
460 | /* | |
461 | * Do highlighting of C/C++ keywords, preprocessor commands, | |
462 | * and comments... | |
463 | */ | |
464 | ||
465 | if ((ch == ' ' || ch == '\t') && (attr & ATTR_BOLD)) | |
466 | { | |
467 | /* | |
468 | * Stop bolding preprocessor command... | |
469 | */ | |
470 | ||
471 | attr &= ~ATTR_BOLD; | |
472 | } | |
473 | else if (!(isalnum(ch) || ch == '_') && keyptr > keyword) | |
474 | { | |
475 | /* | |
476 | * Look for a keyword... | |
477 | */ | |
478 | ||
479 | *keyptr = '\0'; | |
480 | keyptr = keyword; | |
481 | ||
482 | if (!(attr & ATTR_ITALIC) && | |
483 | bsearch(&keyptr, Keywords, sizeof(Keywords) / sizeof(Keywords[0]), | |
484 | sizeof(Keywords[0]), compare_keywords)) | |
485 | { | |
486 | /* | |
487 | * Put keywords in boldface... | |
488 | */ | |
489 | ||
490 | i = page_column * (ColumnWidth + ColumnGutter); | |
491 | ||
492 | while (keycol < column) | |
493 | { | |
494 | Page[line][keycol + i].attr |= ATTR_BOLD; | |
495 | keycol ++; | |
496 | } | |
497 | } | |
498 | } | |
499 | else if ((isalnum(ch) || ch == '_') && !ccomment && !cstring) | |
500 | { | |
501 | /* | |
502 | * Add characters to the current keyword (if they'll fit). | |
503 | */ | |
504 | ||
505 | if (keyptr == keyword) | |
506 | keycol = column; | |
507 | ||
508 | if (keyptr < (keyword + sizeof(keyword) - 1)) | |
509 | *keyptr++ = ch; | |
510 | } | |
511 | else if (ch == '\"' && lastch != '\\' && !ccomment && !cstring) | |
512 | { | |
513 | /* | |
514 | * Start a C string constant... | |
515 | */ | |
516 | ||
517 | cstring = -1; | |
518 | attr |= ATTR_BLUE; | |
519 | } | |
520 | else if (ch == '*' && lastch == '/' && !cstring) | |
521 | { | |
522 | /* | |
523 | * Start a C-style comment... | |
524 | */ | |
525 | ||
526 | ccomment = 1; | |
527 | attr |= ATTR_ITALIC | ATTR_GREEN; | |
528 | } | |
529 | else if (ch == '/' && lastch == '/' && !cstring) | |
530 | { | |
531 | /* | |
532 | * Start a C++-style comment... | |
533 | */ | |
534 | ||
535 | attr |= ATTR_ITALIC | ATTR_GREEN; | |
536 | } | |
537 | else if (ch == '#' && column == 0 && !ccomment && !cstring) | |
538 | { | |
539 | /* | |
540 | * Start a preprocessor command... | |
541 | */ | |
542 | ||
543 | attr |= ATTR_BOLD | ATTR_RED; | |
544 | } | |
545 | } | |
546 | ||
547 | if (column >= ColumnWidth && WrapLines) | |
548 | { /* Wrap text to margins */ | |
549 | column = 0; | |
550 | line ++; | |
551 | ||
552 | if (line >= SizeLines) | |
553 | { | |
554 | page_column ++; | |
555 | line = 0; | |
556 | ||
557 | if (page_column >= PageColumns) | |
558 | { | |
559 | WritePage(); | |
560 | page_column = 0; | |
561 | } | |
562 | } | |
563 | } | |
564 | ||
565 | /* | |
566 | * Add text to the current column & line... | |
567 | */ | |
568 | ||
569 | if (column < ColumnWidth) | |
570 | { | |
571 | i = column + page_column * (ColumnWidth + ColumnGutter); | |
572 | ||
573 | if (PrettyPrint) | |
574 | Page[line][i].attr = attr; | |
575 | else if (ch == Page[line][i].ch) | |
576 | Page[line][i].attr |= ATTR_BOLD; | |
577 | else if (Page[line][i].ch == '_') | |
578 | Page[line][i].attr |= ATTR_UNDERLINE; | |
579 | else | |
580 | Page[line][i].attr = attr; | |
581 | ||
582 | Page[line][i].ch = ch; | |
583 | } | |
584 | ||
585 | if (PrettyPrint) | |
586 | { | |
587 | if ((ch == '{' || ch == '}') && !ccomment && !cstring && | |
588 | column < ColumnWidth) | |
589 | { | |
590 | /* | |
591 | * Highlight curley braces... | |
592 | */ | |
593 | ||
594 | Page[line][i].attr |= ATTR_BOLD; | |
595 | } | |
596 | else if ((ch == '/' || ch == '*') && lastch == '/' && | |
597 | column < ColumnWidth) | |
598 | { | |
599 | /* | |
600 | * Highlight first comment character... | |
601 | */ | |
602 | ||
603 | Page[line][i - 1].attr = attr; | |
604 | } | |
605 | else if (ch == '\"' && lastch != '\\' && !ccomment && cstring > 0) | |
606 | { | |
607 | /* | |
608 | * End a C string constant... | |
609 | */ | |
610 | ||
611 | cstring = 0; | |
612 | attr &= ~ATTR_BLUE; | |
613 | } | |
614 | else if (ch == '/' && lastch == '*' && ccomment) | |
615 | { | |
616 | /* | |
617 | * End a C-style comment... | |
618 | */ | |
619 | ||
620 | ccomment = 0; | |
621 | attr &= ~(ATTR_ITALIC | ATTR_GREEN); | |
622 | } | |
623 | ||
624 | if (cstring < 0) | |
625 | cstring = 1; | |
626 | } | |
627 | ||
628 | column ++; | |
629 | break; | |
630 | } | |
631 | ||
632 | /* | |
633 | * Save this character for the next cycle. | |
634 | */ | |
635 | ||
636 | lastch = ch; | |
637 | } | |
638 | ||
639 | /* | |
640 | * Write any remaining page data... | |
641 | */ | |
642 | ||
643 | if (line > 0 || page_column > 0 || column > 0) | |
644 | WritePage(); | |
645 | ||
646 | /* | |
647 | * Write the epilog and return... | |
648 | */ | |
649 | ||
650 | WriteEpilogue(); | |
651 | ||
652 | return (0); | |
653 | } | |
654 | ||
655 | ||
656 | /* | |
657 | * 'compare_keywords()' - Compare two C/C++ keywords. | |
658 | */ | |
659 | ||
660 | static int /* O - Result of strcmp */ | |
661 | compare_keywords(const void *k1, /* I - First keyword */ | |
662 | const void *k2) /* I - Second keyword */ | |
663 | { | |
664 | return (strcmp(*((const char **)k1), *((const char **)k2))); | |
665 | } | |
666 | ||
667 | ||
668 | /* | |
669 | * 'getutf8()' - Get a UTF-8 encoded wide character... | |
670 | */ | |
671 | ||
672 | static int /* O - Character or -1 on error */ | |
673 | getutf8(FILE *fp) /* I - File to read from */ | |
674 | { | |
675 | int ch; /* Current character value */ | |
676 | int next; /* Next character from file */ | |
677 | ||
678 | ||
679 | /* | |
680 | * Read the first character and process things accordingly... | |
681 | * | |
682 | * UTF-8 maps 16-bit characters to: | |
683 | * | |
684 | * 0 to 127 = 0xxxxxxx | |
685 | * 128 to 2047 = 110xxxxx 10yyyyyy (xxxxxyyyyyy) | |
686 | * 2048 to 65535 = 1110xxxx 10yyyyyy 10zzzzzz (xxxxyyyyyyzzzzzz) | |
687 | * | |
688 | * We also accept: | |
689 | * | |
690 | * 128 to 191 = 10xxxxxx | |
691 | * | |
692 | * since this range of values is otherwise undefined unless you are | |
693 | * in the middle of a multi-byte character... | |
694 | * | |
695 | * This code currently does not support anything beyond 16-bit | |
696 | * characters, in part because PostScript doesn't support more than | |
697 | * 16-bit characters... | |
698 | */ | |
699 | ||
700 | if ((ch = getc(fp)) == EOF) | |
701 | return (EOF); | |
702 | ||
703 | if (ch < 0xc0 || !UTF8) /* One byte character? */ | |
704 | return (ch); | |
705 | else if ((ch & 0xe0) == 0xc0) | |
706 | { | |
707 | /* | |
708 | * Two byte character... | |
709 | */ | |
710 | ||
711 | if ((next = getc(fp)) == EOF) | |
712 | return (EOF); | |
713 | else | |
714 | return (((ch & 0x1f) << 6) | (next & 0x3f)); | |
715 | } | |
716 | else if ((ch & 0xf0) == 0xe0) | |
717 | { | |
718 | /* | |
719 | * Three byte character... | |
720 | */ | |
721 | ||
722 | if ((next = getc(fp)) == EOF) | |
723 | return (EOF); | |
724 | ||
725 | ch = ((ch & 0x0f) << 6) | (next & 0x3f); | |
726 | ||
727 | if ((next = getc(fp)) == EOF) | |
728 | return (EOF); | |
729 | else | |
730 | return ((ch << 6) | (next & 0x3f)); | |
731 | } | |
732 | else | |
733 | { | |
734 | /* | |
735 | * More than three bytes... We don't support that... | |
736 | */ | |
737 | ||
738 | return (EOF); | |
739 | } | |
740 | } | |
741 | ||
742 | ||
743 | /* | |
744 | * End of "$Id$". | |
745 | */ |