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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $" |
ef416fc2 | 3 | * |
4 | * PPD command interpreter for the Common UNIX Printing System (CUPS). | |
5 | * | |
91c84a35 | 6 | * Copyright 2007-2008 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1993-2007 by Easy Software Products. |
ef416fc2 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * cupsRasterInterpretPPD() - Interpret PPD commands to create a page header. | |
b86bc4cf | 20 | * _cupsRasterExecPS() - Execute PostScript code to initialize a page |
21 | * header. | |
22 | * cleartomark_stack() - Clear to the last mark ([) on the stack. | |
23 | * copy_stack() - Copy the top N stack objects. | |
24 | * delete_stack() - Free memory used by a stack. | |
f7deaa1a | 25 | * error_object() - Add an object's value to the current error |
26 | * message. | |
27 | * error_stack() - Add a stack to the current error message. | |
b86bc4cf | 28 | * index_stack() - Copy the Nth value on the stack. |
29 | * new_stack() - Create a new stack. | |
30 | * pop_stock() - Pop the top object off the stack. | |
31 | * push_stack() - Push an object on the stack. | |
32 | * roll_stack() - Rotate stack objects. | |
33 | * scan_ps() - Scan a string for the next PS object. | |
34 | * setpagedevice() - Simulate the PostScript setpagedevice operator. | |
35 | * DEBUG_object() - Print an object value. | |
36 | * DEBUG_stack() - Print a stack. | |
ef416fc2 | 37 | */ |
38 | ||
39 | /* | |
40 | * Include necessary headers... | |
41 | */ | |
42 | ||
ef416fc2 | 43 | #include <cups/string.h> |
b86bc4cf | 44 | #include "image-private.h" |
ef416fc2 | 45 | #include <stdlib.h> |
46 | ||
47 | ||
48 | /* | |
b86bc4cf | 49 | * Stack values for the PostScript mini-interpreter... |
ef416fc2 | 50 | */ |
51 | ||
b86bc4cf | 52 | typedef enum |
53 | { | |
54 | CUPS_PS_NAME, | |
55 | CUPS_PS_NUMBER, | |
56 | CUPS_PS_STRING, | |
57 | CUPS_PS_BOOLEAN, | |
58 | CUPS_PS_NULL, | |
59 | CUPS_PS_START_ARRAY, | |
60 | CUPS_PS_END_ARRAY, | |
61 | CUPS_PS_START_DICT, | |
62 | CUPS_PS_END_DICT, | |
63 | CUPS_PS_START_PROC, | |
64 | CUPS_PS_END_PROC, | |
65 | CUPS_PS_CLEARTOMARK, | |
66 | CUPS_PS_COPY, | |
67 | CUPS_PS_DUP, | |
68 | CUPS_PS_INDEX, | |
69 | CUPS_PS_POP, | |
70 | CUPS_PS_ROLL, | |
71 | CUPS_PS_SETPAGEDEVICE, | |
72 | CUPS_PS_STOPPED, | |
73 | CUPS_PS_OTHER | |
74 | } _cups_ps_type_t; | |
75 | ||
76 | typedef struct | |
77 | { | |
78 | _cups_ps_type_t type; /* Object type */ | |
79 | union | |
80 | { | |
81 | int boolean; /* Boolean value */ | |
82 | char name[64]; /* Name value */ | |
83 | double number; /* Number value */ | |
84 | char other[64]; /* Other operator */ | |
85 | char string[64]; /* Sring value */ | |
86 | } value; /* Value */ | |
87 | } _cups_ps_obj_t; | |
88 | ||
89 | typedef struct | |
90 | { | |
91 | int num_objs, /* Number of objects on stack */ | |
92 | alloc_objs; /* Number of allocated objects */ | |
93 | _cups_ps_obj_t *objs; /* Objects in stack */ | |
94 | } _cups_ps_stack_t; | |
ef416fc2 | 95 | |
96 | ||
97 | /* | |
98 | * Local functions... | |
99 | */ | |
100 | ||
b86bc4cf | 101 | static int cleartomark_stack(_cups_ps_stack_t *st); |
102 | static int copy_stack(_cups_ps_stack_t *st, int count); | |
103 | static void delete_stack(_cups_ps_stack_t *st); | |
f7deaa1a | 104 | static void error_object(_cups_ps_obj_t *obj); |
105 | static void error_stack(_cups_ps_stack_t *st, const char *title); | |
b86bc4cf | 106 | static _cups_ps_obj_t *index_stack(_cups_ps_stack_t *st, int n); |
107 | static _cups_ps_stack_t *new_stack(void); | |
108 | static _cups_ps_obj_t *pop_stack(_cups_ps_stack_t *st); | |
109 | static _cups_ps_obj_t *push_stack(_cups_ps_stack_t *st, | |
110 | _cups_ps_obj_t *obj); | |
111 | static int roll_stack(_cups_ps_stack_t *st, int c, int s); | |
112 | static _cups_ps_obj_t *scan_ps(_cups_ps_stack_t *st, char **ptr); | |
113 | static int setpagedevice(_cups_ps_stack_t *st, | |
114 | cups_page_header2_t *h, | |
115 | int *preferred_bits); | |
116 | #ifdef DEBUG | |
117 | static void DEBUG_object(_cups_ps_obj_t *obj); | |
118 | static void DEBUG_stack(_cups_ps_stack_t *st); | |
119 | #endif /* DEBUG */ | |
ef416fc2 | 120 | |
121 | ||
122 | /* | |
123 | * 'cupsRasterInterpretPPD()' - Interpret PPD commands to create a page header. | |
124 | * | |
db0bd74a MS |
125 | * This function is used by raster image processing (RIP) filters like |
126 | * cgpdftoraster and imagetoraster when writing CUPS raster data for a page. | |
127 | * It is not used by raster printer driver filters which only read CUPS | |
128 | * raster data. | |
129 | * | |
130 | * | |
131 | * @code cupsRasterInterpretPPD@ does not mark the options in the PPD using | |
132 | * the "num_options" and "options" arguments. Instead, mark the options with | |
133 | * @code cupsMarkOptions@ and @code ppdMarkOption@ prior to calling it - | |
134 | * this allows for per-page options without manipulating the options array. | |
923edb68 | 135 | * |
a74454a7 | 136 | * The "func" argument specifies an optional callback function that is |
137 | * called prior to the computation of the final raster data. The function | |
5a738aea | 138 | * can make changes to the @link cups_page_header2_t@ data as needed to use a |
a74454a7 | 139 | * supported raster format and then returns 0 on success and -1 if the |
140 | * requested attributes cannot be supported. | |
141 | * | |
db0bd74a | 142 | * |
5a738aea MS |
143 | * @code cupsRasterInterpretPPD@ supports a subset of the PostScript language. |
144 | * Currently only the @code [@, @code ]@, @code <<@, @code >>@, @code {@, | |
145 | * @code }@, @code cleartomark@, @code copy@, @code dup@, @code index@, | |
146 | * @code pop@, @code roll@, @code setpagedevice@, and @code stopped@ operators | |
147 | * are supported. | |
b86bc4cf | 148 | * |
db0bd74a | 149 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 150 | */ |
151 | ||
152 | int /* O - 0 on success, -1 on failure */ | |
153 | cupsRasterInterpretPPD( | |
db0bd74a | 154 | cups_page_header2_t *h, /* O - Page header to create */ |
923edb68 | 155 | ppd_file_t *ppd, /* I - PPD file */ |
156 | int num_options, /* I - Number of options */ | |
a74454a7 | 157 | cups_option_t *options, /* I - Options */ |
db0bd74a | 158 | cups_interpret_cb_t func) /* I - Optional page header callback (@code NULL@ for none) */ |
ef416fc2 | 159 | { |
ef416fc2 | 160 | int status; /* Cummulative status */ |
b86bc4cf | 161 | char *code; /* Code to run */ |
923edb68 | 162 | const char *val; /* Option value */ |
ef416fc2 | 163 | ppd_size_t *size; /* Current size */ |
164 | float left, /* Left position */ | |
165 | bottom, /* Bottom position */ | |
166 | right, /* Right position */ | |
167 | top; /* Top position */ | |
a74454a7 | 168 | int preferred_bits; /* Preferred bits per color */ |
ef416fc2 | 169 | |
170 | ||
171 | /* | |
172 | * Range check input... | |
173 | */ | |
174 | ||
f7deaa1a | 175 | _cupsRasterClearError(); |
176 | ||
ef416fc2 | 177 | if (!h) |
f7deaa1a | 178 | { |
179 | _cupsRasterAddError("Page header cannot be NULL!\n"); | |
ef416fc2 | 180 | return (-1); |
f7deaa1a | 181 | } |
ef416fc2 | 182 | |
183 | /* | |
184 | * Reset the page header to the defaults... | |
185 | */ | |
186 | ||
187 | memset(h, 0, sizeof(cups_page_header2_t)); | |
188 | ||
923edb68 | 189 | h->NumCopies = 1; |
190 | h->PageSize[0] = 612; | |
191 | h->PageSize[1] = 792; | |
192 | h->HWResolution[0] = 100; | |
193 | h->HWResolution[1] = 100; | |
194 | h->cupsBitsPerColor = 1; | |
195 | h->cupsColorOrder = CUPS_ORDER_CHUNKED; | |
196 | h->cupsColorSpace = CUPS_CSPACE_K; | |
197 | h->cupsBorderlessScalingFactor = 1.0f; | |
198 | h->cupsPageSize[0] = 612.0f; | |
199 | h->cupsPageSize[1] = 792.0f; | |
200 | h->cupsImagingBBox[0] = 0.0f; | |
201 | h->cupsImagingBBox[1] = 0.0f; | |
202 | h->cupsImagingBBox[2] = 612.0f; | |
203 | h->cupsImagingBBox[3] = 792.0f; | |
fa73b229 | 204 | |
205 | strcpy(h->cupsPageSizeName, "Letter"); | |
ef416fc2 | 206 | |
207 | /* | |
208 | * Apply patches and options to the page header... | |
209 | */ | |
210 | ||
a74454a7 | 211 | status = 0; |
212 | preferred_bits = 0; | |
ef416fc2 | 213 | |
214 | if (ppd) | |
215 | { | |
216 | /* | |
217 | * Apply any patch code (used to override the defaults...) | |
218 | */ | |
219 | ||
220 | if (ppd->patches) | |
b86bc4cf | 221 | status |= _cupsRasterExecPS(h, &preferred_bits, ppd->patches); |
ef416fc2 | 222 | |
223 | /* | |
224 | * Then apply printer options in the proper order... | |
225 | */ | |
226 | ||
b86bc4cf | 227 | if ((code = ppdEmitString(ppd, PPD_ORDER_DOCUMENT, 0.0)) != NULL) |
ef416fc2 | 228 | { |
b86bc4cf | 229 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
230 | free(code); | |
ef416fc2 | 231 | } |
232 | ||
b86bc4cf | 233 | if ((code = ppdEmitString(ppd, PPD_ORDER_ANY, 0.0)) != NULL) |
ef416fc2 | 234 | { |
b86bc4cf | 235 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
236 | free(code); | |
ef416fc2 | 237 | } |
238 | ||
b86bc4cf | 239 | if ((code = ppdEmitString(ppd, PPD_ORDER_PROLOG, 0.0)) != NULL) |
ef416fc2 | 240 | { |
b86bc4cf | 241 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
242 | free(code); | |
ef416fc2 | 243 | } |
244 | ||
b86bc4cf | 245 | if ((code = ppdEmitString(ppd, PPD_ORDER_PAGE, 0.0)) != NULL) |
ef416fc2 | 246 | { |
b86bc4cf | 247 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
248 | free(code); | |
ef416fc2 | 249 | } |
250 | } | |
251 | ||
923edb68 | 252 | /* |
253 | * Allow option override for page scaling... | |
254 | */ | |
255 | ||
256 | if ((val = cupsGetOption("cupsBorderlessScalingFactor", num_options, | |
257 | options)) != NULL) | |
258 | { | |
259 | float sc = atof(val); | |
260 | ||
06d4e77b | 261 | if (sc >= 0.1 && sc <= 2.0) |
923edb68 | 262 | h->cupsBorderlessScalingFactor = sc; |
263 | } | |
264 | ||
ef416fc2 | 265 | /* |
266 | * Get the margins for the current size... | |
267 | */ | |
268 | ||
269 | if ((size = ppdPageSize(ppd, NULL)) != NULL) | |
270 | { | |
271 | /* | |
272 | * Use the margins from the PPD file... | |
273 | */ | |
274 | ||
275 | left = size->left; | |
276 | bottom = size->bottom; | |
277 | right = size->right; | |
278 | top = size->top; | |
fa73b229 | 279 | |
280 | strlcpy(h->cupsPageSizeName, size->name, sizeof(h->cupsPageSizeName)); | |
07725fee | 281 | |
282 | h->cupsPageSize[0] = size->width; | |
283 | h->cupsPageSize[1] = size->length; | |
ef416fc2 | 284 | } |
285 | else | |
286 | { | |
287 | /* | |
288 | * Use the default margins... | |
289 | */ | |
290 | ||
291 | left = 0.0f; | |
292 | bottom = 0.0f; | |
293 | right = 612.0f; | |
294 | top = 792.0f; | |
295 | } | |
296 | ||
923edb68 | 297 | h->PageSize[0] = h->cupsPageSize[0] * |
298 | h->cupsBorderlessScalingFactor; | |
299 | h->PageSize[1] = h->cupsPageSize[1] * | |
300 | h->cupsBorderlessScalingFactor; | |
301 | h->Margins[0] = left * h->cupsBorderlessScalingFactor; | |
302 | h->Margins[1] = bottom * h->cupsBorderlessScalingFactor; | |
303 | h->ImagingBoundingBox[0] = left * h->cupsBorderlessScalingFactor; | |
304 | h->ImagingBoundingBox[1] = bottom * h->cupsBorderlessScalingFactor; | |
305 | h->ImagingBoundingBox[2] = right * h->cupsBorderlessScalingFactor; | |
306 | h->ImagingBoundingBox[3] = top * h->cupsBorderlessScalingFactor; | |
fa73b229 | 307 | h->cupsImagingBBox[0] = left; |
308 | h->cupsImagingBBox[1] = bottom; | |
309 | h->cupsImagingBBox[2] = right; | |
310 | h->cupsImagingBBox[3] = top; | |
ef416fc2 | 311 | |
a74454a7 | 312 | /* |
313 | * Use the callback to validate the page header... | |
314 | */ | |
315 | ||
316 | if (func && (*func)(h, preferred_bits)) | |
f7deaa1a | 317 | { |
318 | _cupsRasterAddError("Page header callback returned error.\n"); | |
a74454a7 | 319 | return (-1); |
f7deaa1a | 320 | } |
a74454a7 | 321 | |
a9252913 | 322 | /* |
323 | * Check parameters... | |
324 | */ | |
325 | ||
326 | if (!h->HWResolution[0] || !h->HWResolution[1] || | |
327 | !h->PageSize[0] || !h->PageSize[1] || | |
328 | (h->cupsBitsPerColor != 1 && h->cupsBitsPerColor != 2 && | |
329 | h->cupsBitsPerColor != 4 && h->cupsBitsPerColor != 8 && | |
330 | h->cupsBitsPerColor != 16) || | |
06d4e77b | 331 | h->cupsBorderlessScalingFactor < 0.1 || |
b86bc4cf | 332 | h->cupsBorderlessScalingFactor > 2.0) |
f7deaa1a | 333 | { |
334 | _cupsRasterAddError("Page header uses unsupported values.\n"); | |
a9252913 | 335 | return (-1); |
f7deaa1a | 336 | } |
a9252913 | 337 | |
ef416fc2 | 338 | /* |
339 | * Compute the bitmap parameters... | |
340 | */ | |
341 | ||
923edb68 | 342 | h->cupsWidth = (int)((right - left) * h->cupsBorderlessScalingFactor * |
fa73b229 | 343 | h->HWResolution[0] / 72.0f + 0.5f); |
923edb68 | 344 | h->cupsHeight = (int)((top - bottom) * h->cupsBorderlessScalingFactor * |
fa73b229 | 345 | h->HWResolution[1] / 72.0f + 0.5f); |
ef416fc2 | 346 | |
347 | switch (h->cupsColorSpace) | |
348 | { | |
349 | case CUPS_CSPACE_W : | |
350 | case CUPS_CSPACE_K : | |
351 | case CUPS_CSPACE_WHITE : | |
352 | case CUPS_CSPACE_GOLD : | |
353 | case CUPS_CSPACE_SILVER : | |
354 | h->cupsNumColors = 1; | |
355 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
356 | break; | |
357 | ||
358 | default : | |
359 | /* | |
360 | * Ensure that colorimetric colorspaces use at least 8 bits per | |
361 | * component... | |
362 | */ | |
363 | ||
364 | if (h->cupsColorSpace >= CUPS_CSPACE_CIEXYZ && | |
365 | h->cupsBitsPerColor < 8) | |
366 | h->cupsBitsPerColor = 8; | |
367 | ||
368 | /* | |
369 | * Figure out the number of bits per pixel... | |
370 | */ | |
371 | ||
372 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
373 | { | |
374 | if (h->cupsBitsPerColor >= 8) | |
375 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 3; | |
376 | else | |
377 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
378 | } | |
379 | else | |
380 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
381 | ||
382 | h->cupsNumColors = 3; | |
383 | break; | |
384 | ||
385 | case CUPS_CSPACE_KCMYcm : | |
f301802f | 386 | if (h->cupsBitsPerColor == 1) |
ef416fc2 | 387 | { |
388 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
389 | h->cupsBitsPerPixel = 8; | |
390 | else | |
391 | h->cupsBitsPerPixel = 1; | |
392 | ||
393 | h->cupsNumColors = 6; | |
394 | break; | |
395 | } | |
396 | ||
397 | /* | |
398 | * Fall through to CMYK code... | |
399 | */ | |
400 | ||
401 | case CUPS_CSPACE_RGBA : | |
a74454a7 | 402 | case CUPS_CSPACE_RGBW : |
ef416fc2 | 403 | case CUPS_CSPACE_CMYK : |
404 | case CUPS_CSPACE_YMCK : | |
405 | case CUPS_CSPACE_KCMY : | |
406 | case CUPS_CSPACE_GMCK : | |
407 | case CUPS_CSPACE_GMCS : | |
408 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
409 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
410 | else | |
411 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
412 | ||
413 | h->cupsNumColors = 4; | |
414 | break; | |
415 | } | |
416 | ||
417 | h->cupsBytesPerLine = (h->cupsBitsPerPixel * h->cupsWidth + 7) / 8; | |
418 | ||
419 | if (h->cupsColorOrder == CUPS_ORDER_BANDED) | |
420 | h->cupsBytesPerLine *= h->cupsNumColors; | |
421 | ||
422 | return (status); | |
423 | } | |
424 | ||
425 | ||
426 | /* | |
b86bc4cf | 427 | * '_cupsRasterExecPS()' - Execute PostScript code to initialize a page header. |
ef416fc2 | 428 | */ |
429 | ||
b86bc4cf | 430 | int /* O - 0 on success, -1 on error */ |
431 | _cupsRasterExecPS( | |
a74454a7 | 432 | cups_page_header2_t *h, /* O - Page header */ |
433 | int *preferred_bits,/* O - Preferred bits per color */ | |
b86bc4cf | 434 | const char *code) /* I - PS code to execute */ |
ef416fc2 | 435 | { |
b86bc4cf | 436 | _cups_ps_stack_t *st; /* PostScript value stack */ |
437 | _cups_ps_obj_t *obj; /* Object from top of stack */ | |
438 | char *codecopy, /* Copy of code */ | |
439 | *codeptr; /* Pointer into copy of code */ | |
440 | ||
ef416fc2 | 441 | |
b86bc4cf | 442 | DEBUG_printf(("_cupsRasterExecPS(h=%p, preferred_bits=%p, code=\"%s\")\n", |
443 | h, preferred_bits, code ? code : "(null)")); | |
ef416fc2 | 444 | |
445 | /* | |
b86bc4cf | 446 | * Copy the PostScript code and create a stack... |
ef416fc2 | 447 | */ |
448 | ||
b86bc4cf | 449 | if ((codecopy = strdup(code)) == NULL) |
f7deaa1a | 450 | { |
451 | _cupsRasterAddError("Unable to duplicate code string.\n"); | |
b86bc4cf | 452 | return (-1); |
f7deaa1a | 453 | } |
b86bc4cf | 454 | |
455 | if ((st = new_stack()) == NULL) | |
456 | { | |
f7deaa1a | 457 | _cupsRasterAddError("Unable to create stack.\n"); |
b86bc4cf | 458 | free(codecopy); |
ef416fc2 | 459 | return (-1); |
b86bc4cf | 460 | } |
ef416fc2 | 461 | |
462 | /* | |
b86bc4cf | 463 | * Parse the PS string until we run out of data... |
ef416fc2 | 464 | */ |
465 | ||
b86bc4cf | 466 | codeptr = codecopy; |
467 | ||
468 | while ((obj = scan_ps(st, &codeptr)) != NULL) | |
ef416fc2 | 469 | { |
b86bc4cf | 470 | #ifdef DEBUG |
ae71f5de | 471 | DEBUG_printf(("_cupsRasterExecPS: Stack (%d objects)\n", st->num_objs)); |
b86bc4cf | 472 | DEBUG_object(obj); |
b86bc4cf | 473 | #endif /* DEBUG */ |
474 | ||
475 | switch (obj->type) | |
476 | { | |
477 | default : | |
478 | /* Do nothing for regular values */ | |
479 | break; | |
480 | ||
481 | case CUPS_PS_CLEARTOMARK : | |
482 | pop_stack(st); | |
483 | ||
f7deaa1a | 484 | if (cleartomark_stack(st)) |
485 | _cupsRasterAddError("cleartomark: Stack underflow!\n"); | |
b86bc4cf | 486 | |
487 | #ifdef DEBUG | |
ae71f5de | 488 | DEBUG_puts(" dup: "); |
b86bc4cf | 489 | DEBUG_stack(st); |
490 | #endif /* DEBUG */ | |
491 | break; | |
492 | ||
493 | case CUPS_PS_COPY : | |
494 | pop_stack(st); | |
495 | if ((obj = pop_stack(st)) != NULL) | |
496 | { | |
497 | copy_stack(st, (int)obj->value.number); | |
498 | ||
499 | #ifdef DEBUG | |
ae71f5de | 500 | DEBUG_puts("_cupsRasterExecPS: copy"); |
b86bc4cf | 501 | DEBUG_stack(st); |
502 | #endif /* DEBUG */ | |
503 | } | |
504 | break; | |
505 | ||
506 | case CUPS_PS_DUP : | |
507 | pop_stack(st); | |
508 | copy_stack(st, 1); | |
509 | ||
510 | #ifdef DEBUG | |
ae71f5de | 511 | DEBUG_puts("_cupsRasterExecPS: dup"); |
b86bc4cf | 512 | DEBUG_stack(st); |
513 | #endif /* DEBUG */ | |
514 | break; | |
515 | ||
516 | case CUPS_PS_INDEX : | |
517 | pop_stack(st); | |
518 | if ((obj = pop_stack(st)) != NULL) | |
519 | { | |
520 | index_stack(st, (int)obj->value.number); | |
521 | ||
522 | #ifdef DEBUG | |
ae71f5de | 523 | DEBUG_puts("_cupsRasterExecPS: index"); |
b86bc4cf | 524 | DEBUG_stack(st); |
525 | #endif /* DEBUG */ | |
526 | } | |
527 | break; | |
528 | ||
529 | case CUPS_PS_POP : | |
530 | pop_stack(st); | |
531 | pop_stack(st); | |
532 | ||
533 | #ifdef DEBUG | |
ae71f5de | 534 | DEBUG_puts("_cupsRasterExecPS: pop"); |
b86bc4cf | 535 | DEBUG_stack(st); |
536 | #endif /* DEBUG */ | |
537 | break; | |
538 | ||
539 | case CUPS_PS_ROLL : | |
540 | pop_stack(st); | |
541 | if ((obj = pop_stack(st)) != NULL) | |
542 | { | |
543 | int c; /* Count */ | |
ef416fc2 | 544 | |
ef416fc2 | 545 | |
b86bc4cf | 546 | c = (int)obj->value.number; |
547 | ||
548 | if ((obj = pop_stack(st)) != NULL) | |
549 | { | |
550 | roll_stack(st, (int)obj->value.number, c); | |
551 | ||
552 | #ifdef DEBUG | |
ae71f5de | 553 | DEBUG_puts("_cupsRasterExecPS: roll"); |
b86bc4cf | 554 | DEBUG_stack(st); |
555 | #endif /* DEBUG */ | |
556 | } | |
557 | } | |
558 | break; | |
559 | ||
560 | case CUPS_PS_SETPAGEDEVICE : | |
561 | pop_stack(st); | |
562 | setpagedevice(st, h, preferred_bits); | |
563 | ||
564 | #ifdef DEBUG | |
ae71f5de | 565 | DEBUG_puts("_cupsRasterExecPS: setpagedevice"); |
b86bc4cf | 566 | DEBUG_stack(st); |
567 | #endif /* DEBUG */ | |
568 | break; | |
569 | ||
570 | case CUPS_PS_START_PROC : | |
571 | case CUPS_PS_END_PROC : | |
572 | case CUPS_PS_STOPPED : | |
573 | pop_stack(st); | |
574 | break; | |
575 | ||
576 | case CUPS_PS_OTHER : | |
f7deaa1a | 577 | _cupsRasterAddError("Unknown operator \"%s\"!\n", obj->value.other); |
ae71f5de MS |
578 | DEBUG_printf(("_cupsRasterExecPS: Unknown operator \"%s\"!\n", |
579 | obj->value.other)); | |
b86bc4cf | 580 | break; |
581 | } | |
582 | ||
91c84a35 | 583 | if (obj && obj->type == CUPS_PS_OTHER) |
ef416fc2 | 584 | break; |
b86bc4cf | 585 | } |
586 | ||
587 | /* | |
588 | * Cleanup... | |
589 | */ | |
590 | ||
591 | free(codecopy); | |
592 | ||
593 | if (st->num_objs > 0) | |
594 | { | |
f7deaa1a | 595 | error_stack(st, "Stack not empty:"); |
596 | ||
b86bc4cf | 597 | #ifdef DEBUG |
ae71f5de | 598 | DEBUG_puts("_cupsRasterExecPS: Stack not empty:"); |
b86bc4cf | 599 | DEBUG_stack(st); |
600 | #endif /* DEBUG */ | |
ef416fc2 | 601 | |
b86bc4cf | 602 | delete_stack(st); |
603 | ||
604 | return (-1); | |
605 | } | |
606 | ||
607 | delete_stack(st); | |
608 | ||
609 | /* | |
610 | * Return success... | |
611 | */ | |
612 | ||
613 | return (0); | |
614 | } | |
615 | ||
616 | ||
617 | /* | |
618 | * 'cleartomark_stack()' - Clear to the last mark ([) on the stack. | |
619 | */ | |
620 | ||
621 | static int /* O - 0 on success, -1 on error */ | |
622 | cleartomark_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
623 | { | |
624 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
625 | ||
626 | ||
627 | while ((obj = pop_stack(st)) != NULL) | |
628 | if (obj->type == CUPS_PS_START_ARRAY) | |
629 | break; | |
630 | ||
631 | return (obj ? 0 : -1); | |
632 | } | |
633 | ||
634 | ||
635 | /* | |
636 | * 'copy_stack()' - Copy the top N stack objects. | |
637 | */ | |
638 | ||
639 | static int /* O - 0 on success, -1 on error */ | |
640 | copy_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
641 | int c) /* I - Number of objects to copy */ | |
642 | { | |
643 | int n; /* Index */ | |
644 | ||
645 | ||
646 | if (c < 0) | |
647 | return (-1); | |
648 | else if (c == 0) | |
649 | return (0); | |
650 | ||
651 | if ((n = st->num_objs - c) < 0) | |
652 | return (-1); | |
653 | ||
654 | while (c > 0) | |
655 | { | |
656 | if (!push_stack(st, st->objs + n)) | |
657 | return (-1); | |
658 | ||
659 | n ++; | |
660 | c --; | |
661 | } | |
662 | ||
663 | return (0); | |
664 | } | |
665 | ||
666 | ||
667 | /* | |
668 | * 'delete_stack()' - Free memory used by a stack. | |
669 | */ | |
670 | ||
671 | static void | |
672 | delete_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
673 | { | |
674 | free(st->objs); | |
675 | free(st); | |
676 | } | |
677 | ||
678 | ||
f7deaa1a | 679 | /* |
680 | * 'error_object()' - Add an object's value to the current error message. | |
681 | */ | |
682 | ||
683 | static void | |
684 | error_object(_cups_ps_obj_t *obj) /* I - Object to add */ | |
685 | { | |
686 | switch (obj->type) | |
687 | { | |
688 | case CUPS_PS_NAME : | |
689 | _cupsRasterAddError(" /%s", obj->value.name); | |
690 | break; | |
691 | ||
692 | case CUPS_PS_NUMBER : | |
693 | _cupsRasterAddError(" %g", obj->value.number); | |
694 | break; | |
695 | ||
696 | case CUPS_PS_STRING : | |
697 | _cupsRasterAddError(" (%s)", obj->value.string); | |
698 | break; | |
699 | ||
700 | case CUPS_PS_BOOLEAN : | |
701 | if (obj->value.boolean) | |
702 | _cupsRasterAddError(" true"); | |
703 | else | |
704 | _cupsRasterAddError(" false"); | |
705 | break; | |
706 | ||
707 | case CUPS_PS_NULL : | |
708 | _cupsRasterAddError(" null"); | |
709 | break; | |
710 | ||
711 | case CUPS_PS_START_ARRAY : | |
712 | _cupsRasterAddError(" ["); | |
713 | break; | |
714 | ||
715 | case CUPS_PS_END_ARRAY : | |
716 | _cupsRasterAddError(" ]"); | |
717 | break; | |
718 | ||
719 | case CUPS_PS_START_DICT : | |
720 | _cupsRasterAddError(" <<"); | |
721 | break; | |
722 | ||
723 | case CUPS_PS_END_DICT : | |
724 | _cupsRasterAddError(" >>"); | |
725 | break; | |
726 | ||
727 | case CUPS_PS_START_PROC : | |
728 | _cupsRasterAddError(" {"); | |
729 | break; | |
730 | ||
731 | case CUPS_PS_END_PROC : | |
732 | _cupsRasterAddError(" }"); | |
733 | break; | |
734 | ||
735 | case CUPS_PS_COPY : | |
736 | _cupsRasterAddError(" --copy--"); | |
737 | break; | |
738 | ||
739 | case CUPS_PS_CLEARTOMARK : | |
740 | _cupsRasterAddError(" --cleartomark--"); | |
741 | break; | |
742 | ||
743 | case CUPS_PS_DUP : | |
744 | _cupsRasterAddError(" --dup--"); | |
745 | break; | |
746 | ||
747 | case CUPS_PS_INDEX : | |
748 | _cupsRasterAddError(" --index--"); | |
749 | break; | |
750 | ||
751 | case CUPS_PS_POP : | |
752 | _cupsRasterAddError(" --pop--"); | |
753 | break; | |
754 | ||
755 | case CUPS_PS_ROLL : | |
756 | _cupsRasterAddError(" --roll--"); | |
757 | break; | |
758 | ||
759 | case CUPS_PS_SETPAGEDEVICE : | |
760 | _cupsRasterAddError(" --setpagedevice--"); | |
761 | break; | |
762 | ||
763 | case CUPS_PS_STOPPED : | |
764 | _cupsRasterAddError(" --stopped--"); | |
765 | break; | |
766 | ||
767 | case CUPS_PS_OTHER : | |
768 | _cupsRasterAddError(" --%s--", obj->value.other); | |
769 | break; | |
770 | } | |
771 | } | |
772 | ||
773 | ||
774 | /* | |
775 | * 'error_stack()' - Add a stack to the current error message... | |
776 | */ | |
777 | ||
778 | static void | |
779 | error_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
780 | const char *title) /* I - Title string */ | |
781 | { | |
782 | int c; /* Looping var */ | |
783 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
784 | ||
785 | ||
786 | _cupsRasterAddError(title); | |
787 | ||
788 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
789 | error_object(obj); | |
790 | ||
791 | _cupsRasterAddError("\n"); | |
792 | } | |
793 | ||
794 | ||
b86bc4cf | 795 | /* |
796 | * 'index_stack()' - Copy the Nth value on the stack. | |
797 | */ | |
798 | ||
799 | static _cups_ps_obj_t * /* O - New object */ | |
800 | index_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
801 | int n) /* I - Object index */ | |
802 | { | |
803 | if (n < 0 || (n = st->num_objs - n - 1) < 0) | |
804 | return (NULL); | |
805 | ||
806 | return (push_stack(st, st->objs + n)); | |
807 | } | |
808 | ||
809 | ||
810 | /* | |
811 | * 'new_stack()' - Create a new stack. | |
812 | */ | |
813 | ||
814 | static _cups_ps_stack_t * /* O - New stack */ | |
815 | new_stack(void) | |
816 | { | |
817 | _cups_ps_stack_t *st; /* New stack */ | |
818 | ||
819 | ||
820 | if ((st = calloc(1, sizeof(_cups_ps_stack_t))) == NULL) | |
821 | return (NULL); | |
822 | ||
823 | st->alloc_objs = 32; | |
824 | ||
825 | if ((st->objs = calloc(32, sizeof(_cups_ps_obj_t))) == NULL) | |
826 | { | |
827 | free(st); | |
828 | return (NULL); | |
829 | } | |
830 | else | |
831 | return (st); | |
832 | } | |
833 | ||
834 | ||
835 | /* | |
836 | * 'pop_stock()' - Pop the top object off the stack. | |
837 | */ | |
838 | ||
839 | static _cups_ps_obj_t * /* O - Object */ | |
840 | pop_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
841 | { | |
842 | if (st->num_objs > 0) | |
843 | { | |
844 | st->num_objs --; | |
845 | ||
846 | return (st->objs + st->num_objs); | |
847 | } | |
848 | else | |
849 | return (NULL); | |
850 | } | |
851 | ||
852 | ||
853 | /* | |
854 | * 'push_stack()' - Push an object on the stack. | |
855 | */ | |
856 | ||
857 | static _cups_ps_obj_t * /* O - New object */ | |
858 | push_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
859 | _cups_ps_obj_t *obj) /* I - Object */ | |
860 | { | |
861 | _cups_ps_obj_t *temp; /* New object */ | |
862 | ||
863 | ||
864 | if (st->num_objs >= st->alloc_objs) | |
865 | { | |
866 | ||
867 | ||
868 | st->alloc_objs += 32; | |
869 | ||
870 | if ((temp = realloc(st->objs, st->alloc_objs * | |
871 | sizeof(_cups_ps_obj_t))) == NULL) | |
872 | return (NULL); | |
873 | ||
874 | st->objs = temp; | |
875 | memset(temp + st->num_objs, 0, 32 * sizeof(_cups_ps_obj_t)); | |
876 | } | |
877 | ||
878 | temp = st->objs + st->num_objs; | |
879 | st->num_objs ++; | |
880 | ||
881 | memcpy(temp, obj, sizeof(_cups_ps_obj_t)); | |
882 | ||
883 | return (temp); | |
884 | } | |
885 | ||
886 | ||
887 | /* | |
888 | * 'roll_stack()' - Rotate stack objects. | |
889 | */ | |
890 | ||
891 | static int /* O - 0 on success, -1 on error */ | |
892 | roll_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
893 | int c, /* I - Number of objects */ | |
894 | int s) /* I - Amount to shift */ | |
895 | { | |
896 | _cups_ps_obj_t *temp; /* Temporary array of objects */ | |
897 | int n; /* Index into array */ | |
898 | ||
899 | ||
900 | DEBUG_printf((" roll_stack(st=%p, s=%d, c=%d)\n", st, s, c)); | |
901 | ||
902 | /* | |
903 | * Range check input... | |
904 | */ | |
905 | ||
906 | if (c < 0) | |
907 | return (-1); | |
908 | else if (c == 0) | |
909 | return (0); | |
910 | ||
911 | if ((n = st->num_objs - c) < 0) | |
912 | return (-1); | |
913 | ||
914 | s %= c; | |
915 | ||
916 | if (s == 0) | |
917 | return (0); | |
918 | ||
919 | /* | |
920 | * Copy N objects and move things around... | |
921 | */ | |
922 | ||
923 | if (s < 0) | |
924 | { | |
ef416fc2 | 925 | /* |
b86bc4cf | 926 | * Shift down... |
ef416fc2 | 927 | */ |
928 | ||
b86bc4cf | 929 | s = -s; |
ef416fc2 | 930 | |
b86bc4cf | 931 | if ((temp = calloc(s, sizeof(_cups_ps_obj_t))) == NULL) |
932 | return (-1); | |
ef416fc2 | 933 | |
b86bc4cf | 934 | memcpy(temp, st->objs + n, s * sizeof(_cups_ps_obj_t)); |
935 | memmove(st->objs + n, st->objs + n + s, (c - s) * sizeof(_cups_ps_obj_t)); | |
936 | memcpy(st->objs + n + c - s, temp, s * sizeof(_cups_ps_obj_t)); | |
937 | } | |
938 | else | |
939 | { | |
ef416fc2 | 940 | /* |
b86bc4cf | 941 | * Shift up... |
ef416fc2 | 942 | */ |
943 | ||
b86bc4cf | 944 | if ((temp = calloc(s, sizeof(_cups_ps_obj_t))) == NULL) |
945 | return (-1); | |
ef416fc2 | 946 | |
b86bc4cf | 947 | memcpy(temp, st->objs + n + c - s, s * sizeof(_cups_ps_obj_t)); |
948 | memmove(st->objs + n + s, st->objs + n, | |
949 | (c - s) * sizeof(_cups_ps_obj_t)); | |
950 | memcpy(st->objs + n, temp, s * sizeof(_cups_ps_obj_t)); | |
951 | } | |
ef416fc2 | 952 | |
b86bc4cf | 953 | free(temp); |
954 | ||
955 | return (0); | |
956 | } | |
ef416fc2 | 957 | |
ef416fc2 | 958 | |
b86bc4cf | 959 | /* |
960 | * 'scan_ps()' - Scan a string for the next PS object. | |
961 | */ | |
962 | ||
963 | static _cups_ps_obj_t * /* O - New object or NULL on EOF */ | |
964 | scan_ps(_cups_ps_stack_t *st, /* I - Stack */ | |
965 | char **ptr) /* IO - String pointer */ | |
966 | { | |
967 | _cups_ps_obj_t obj; /* Current object */ | |
968 | char *start, /* Start of object */ | |
969 | *cur, /* Current position */ | |
970 | *valptr, /* Pointer into value string */ | |
971 | *valend; /* End of value string */ | |
972 | int parens; /* Parenthesis nesting level */ | |
ef416fc2 | 973 | |
ef416fc2 | 974 | |
b86bc4cf | 975 | /* |
976 | * Skip leading whitespace... | |
977 | */ | |
978 | ||
979 | for (cur = *ptr; *cur; cur ++) | |
980 | { | |
981 | if (*cur == '%') | |
ef416fc2 | 982 | { |
983 | /* | |
b86bc4cf | 984 | * Comment, skip to end of line... |
ef416fc2 | 985 | */ |
986 | ||
b86bc4cf | 987 | for (cur ++; *cur && *cur != '\n' && *cur != '\r'; cur ++); |
988 | } | |
989 | else if (!isspace(*cur & 255)) | |
990 | break; | |
991 | } | |
ef416fc2 | 992 | |
b86bc4cf | 993 | if (!*cur) |
994 | { | |
995 | *ptr = NULL; | |
ef416fc2 | 996 | |
b86bc4cf | 997 | return (NULL); |
998 | } | |
ef416fc2 | 999 | |
b86bc4cf | 1000 | /* |
1001 | * See what we have... | |
1002 | */ | |
ef416fc2 | 1003 | |
b86bc4cf | 1004 | memset(&obj, 0, sizeof(obj)); |
ef416fc2 | 1005 | |
b86bc4cf | 1006 | switch (*cur) |
1007 | { | |
1008 | case '(' : /* (string) */ | |
1009 | obj.type = CUPS_PS_STRING; | |
1010 | start = cur; | |
1011 | ||
1012 | for (cur ++, parens = 1, valptr = obj.value.string, | |
1013 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1014 | *cur; | |
1015 | cur ++) | |
1016 | { | |
1017 | if (*cur == ')' && parens == 1) | |
1018 | break; | |
1019 | ||
1020 | if (*cur == '(') | |
1021 | parens ++; | |
1022 | else if (*cur == ')') | |
1023 | parens --; | |
1024 | ||
1025 | if (valptr >= valend) | |
1026 | { | |
1027 | *ptr = start; | |
1028 | ||
1029 | return (NULL); | |
1030 | } | |
1031 | ||
1032 | if (*cur == '\\') | |
1033 | { | |
1034 | /* | |
1035 | * Decode escaped character... | |
1036 | */ | |
1037 | ||
1038 | cur ++; | |
1039 | ||
1040 | if (*cur == 'b') | |
1041 | *valptr++ = '\b'; | |
1042 | else if (*cur == 'f') | |
1043 | *valptr++ = '\f'; | |
1044 | else if (*cur == 'n') | |
1045 | *valptr++ = '\n'; | |
1046 | else if (*cur == 'r') | |
1047 | *valptr++ = '\r'; | |
1048 | else if (*cur == 't') | |
1049 | *valptr++ = '\t'; | |
1050 | else if (*cur >= '0' && *cur <= '7') | |
1051 | { | |
1052 | int ch = *cur - '0'; | |
1053 | ||
1054 | if (cur[1] >= '0' && cur[1] <= '7') | |
1055 | { | |
1056 | cur ++; | |
1057 | ch = (ch << 3) + *cur - '0'; | |
1058 | } | |
1059 | ||
1060 | if (cur[1] >= '0' && cur[1] <= '7') | |
1061 | { | |
1062 | cur ++; | |
1063 | ch = (ch << 3) + *cur - '0'; | |
1064 | } | |
1065 | ||
1066 | *valptr++ = ch; | |
1067 | } | |
1068 | else if (*cur == '\r') | |
1069 | { | |
1070 | if (cur[1] == '\n') | |
1071 | cur ++; | |
1072 | } | |
1073 | else if (*cur != '\n') | |
1074 | *valptr++ = *cur; | |
1075 | } | |
1076 | else | |
1077 | *valptr++ = *cur; | |
1078 | } | |
1079 | ||
1080 | if (*cur != ')') | |
1081 | { | |
1082 | *ptr = start; | |
1083 | ||
1084 | return (NULL); | |
1085 | } | |
1086 | ||
1087 | cur ++; | |
1088 | break; | |
1089 | ||
1090 | case '[' : /* Start array */ | |
1091 | obj.type = CUPS_PS_START_ARRAY; | |
1092 | cur ++; | |
1093 | break; | |
1094 | ||
1095 | case ']' : /* End array */ | |
1096 | obj.type = CUPS_PS_END_ARRAY; | |
1097 | cur ++; | |
1098 | break; | |
1099 | ||
1100 | case '<' : /* Start dictionary or hex string */ | |
1101 | if (cur[1] == '<') | |
1102 | { | |
1103 | obj.type = CUPS_PS_START_DICT; | |
1104 | cur += 2; | |
1105 | } | |
ef416fc2 | 1106 | else |
b86bc4cf | 1107 | { |
1108 | obj.type = CUPS_PS_STRING; | |
1109 | start = cur; | |
1110 | ||
1111 | for (cur ++, valptr = obj.value.string, | |
1112 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1113 | *cur; | |
1114 | cur ++) | |
1115 | { | |
1116 | int ch; /* Current character */ | |
1117 | ||
1118 | ||
1119 | ||
1120 | if (*cur == '>') | |
1121 | break; | |
1122 | else if (valptr >= valend || !isxdigit(*cur & 255)) | |
1123 | { | |
1124 | *ptr = start; | |
1125 | return (NULL); | |
1126 | } | |
1127 | ||
1128 | if (*cur >= '0' && *cur <= '9') | |
1129 | ch = (*cur - '0') << 4; | |
1130 | else | |
1131 | ch = (tolower(*cur) - 'a' + 10) << 4; | |
1132 | ||
1133 | if (isxdigit(cur[1] & 255)) | |
1134 | { | |
1135 | cur ++; | |
1136 | ||
1137 | if (*cur >= '0' && *cur <= '9') | |
1138 | ch |= *cur - '0'; | |
1139 | else | |
1140 | ch |= tolower(*cur) - 'a' + 10; | |
1141 | } | |
1142 | ||
1143 | *valptr++ = ch; | |
1144 | } | |
1145 | ||
1146 | if (*cur != '>') | |
1147 | { | |
1148 | *ptr = start; | |
1149 | return (NULL); | |
1150 | } | |
1151 | ||
1152 | cur ++; | |
1153 | } | |
1154 | break; | |
ef416fc2 | 1155 | |
b86bc4cf | 1156 | case '>' : /* End dictionary? */ |
1157 | if (cur[1] == '>') | |
1158 | { | |
1159 | obj.type = CUPS_PS_END_DICT; | |
1160 | cur += 2; | |
1161 | } | |
1162 | else | |
1163 | { | |
1164 | obj.type = CUPS_PS_OTHER; | |
1165 | obj.value.other[0] = *cur; | |
1166 | ||
1167 | cur ++; | |
1168 | } | |
1169 | break; | |
1170 | ||
1171 | case '{' : /* Start procedure */ | |
1172 | obj.type = CUPS_PS_START_PROC; | |
1173 | cur ++; | |
1174 | break; | |
1175 | ||
1176 | case '}' : /* End procedure */ | |
1177 | obj.type = CUPS_PS_END_PROC; | |
1178 | cur ++; | |
1179 | break; | |
1180 | ||
1181 | case '-' : /* Possible number */ | |
1182 | case '+' : | |
1183 | if (!isdigit(cur[1] & 255) && cur[1] != '.') | |
1184 | { | |
1185 | obj.type = CUPS_PS_OTHER; | |
1186 | obj.value.other[0] = *cur; | |
1187 | ||
1188 | cur ++; | |
1189 | break; | |
1190 | } | |
1191 | ||
1192 | case '0' : /* Number */ | |
1193 | case '1' : | |
1194 | case '2' : | |
1195 | case '3' : | |
1196 | case '4' : | |
1197 | case '5' : | |
1198 | case '6' : | |
1199 | case '7' : | |
1200 | case '8' : | |
1201 | case '9' : | |
1202 | case '.' : | |
1203 | obj.type = CUPS_PS_NUMBER; | |
1204 | ||
1205 | start = cur; | |
1206 | for (cur ++; *cur; cur ++) | |
1207 | if (!isdigit(*cur & 255)) | |
1208 | break; | |
1209 | ||
1210 | if (*cur == '#') | |
1211 | { | |
1212 | /* | |
1213 | * Integer with radix... | |
1214 | */ | |
1215 | ||
1216 | obj.value.number = strtol(cur + 1, &cur, atoi(start)); | |
1217 | break; | |
1218 | } | |
1219 | else if (strchr(".Ee()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1220 | { | |
1221 | /* | |
1222 | * Integer or real number... | |
1223 | */ | |
ef416fc2 | 1224 | |
b86bc4cf | 1225 | obj.value.number = _cupsStrScand(start, &cur, localeconv()); |
1226 | break; | |
1227 | } | |
1228 | else | |
1229 | cur = start; | |
ef416fc2 | 1230 | |
b86bc4cf | 1231 | default : /* Operator/variable name */ |
1232 | start = cur; | |
1233 | ||
1234 | if (*cur == '/') | |
1235 | { | |
1236 | obj.type = CUPS_PS_NAME; | |
1237 | valptr = obj.value.name; | |
1238 | valend = obj.value.name + sizeof(obj.value.name) - 1; | |
1239 | cur ++; | |
1240 | } | |
ef416fc2 | 1241 | else |
b86bc4cf | 1242 | { |
1243 | obj.type = CUPS_PS_OTHER; | |
1244 | valptr = obj.value.other; | |
1245 | valend = obj.value.other + sizeof(obj.value.other) - 1; | |
1246 | } | |
ef416fc2 | 1247 | |
b86bc4cf | 1248 | while (*cur) |
1249 | { | |
1250 | if (strchr("()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1251 | break; | |
1252 | else if (valptr < valend) | |
1253 | *valptr++ = *cur++; | |
1254 | else | |
1255 | { | |
1256 | *ptr = start; | |
1257 | return (NULL); | |
1258 | } | |
1259 | } | |
1260 | ||
1261 | if (obj.type == CUPS_PS_OTHER) | |
1262 | { | |
1263 | if (!strcmp(obj.value.other, "true")) | |
1264 | { | |
1265 | obj.type = CUPS_PS_BOOLEAN; | |
1266 | obj.value.boolean = 1; | |
1267 | } | |
1268 | else if (!strcmp(obj.value.other, "false")) | |
1269 | { | |
1270 | obj.type = CUPS_PS_BOOLEAN; | |
1271 | obj.value.boolean = 0; | |
1272 | } | |
1273 | else if (!strcmp(obj.value.other, "null")) | |
1274 | obj.type = CUPS_PS_NULL; | |
1275 | else if (!strcmp(obj.value.other, "cleartomark")) | |
1276 | obj.type = CUPS_PS_CLEARTOMARK; | |
1277 | else if (!strcmp(obj.value.other, "copy")) | |
1278 | obj.type = CUPS_PS_COPY; | |
1279 | else if (!strcmp(obj.value.other, "dup")) | |
1280 | obj.type = CUPS_PS_DUP; | |
1281 | else if (!strcmp(obj.value.other, "index")) | |
1282 | obj.type = CUPS_PS_INDEX; | |
1283 | else if (!strcmp(obj.value.other, "pop")) | |
1284 | obj.type = CUPS_PS_POP; | |
1285 | else if (!strcmp(obj.value.other, "roll")) | |
1286 | obj.type = CUPS_PS_ROLL; | |
1287 | else if (!strcmp(obj.value.other, "setpagedevice")) | |
1288 | obj.type = CUPS_PS_SETPAGEDEVICE; | |
1289 | else if (!strcmp(obj.value.other, "stopped")) | |
1290 | obj.type = CUPS_PS_STOPPED; | |
1291 | } | |
1292 | break; | |
1293 | } | |
1294 | ||
1295 | /* | |
1296 | * Save the current position in the string and return the new object... | |
1297 | */ | |
1298 | ||
1299 | *ptr = cur; | |
1300 | ||
1301 | return (push_stack(st, &obj)); | |
1302 | } | |
1303 | ||
1304 | ||
1305 | /* | |
1306 | * 'setpagedevice()' - Simulate the PostScript setpagedevice operator. | |
1307 | */ | |
1308 | ||
1309 | static int /* O - 0 on success, -1 on error */ | |
1310 | setpagedevice( | |
1311 | _cups_ps_stack_t *st, /* I - Stack */ | |
1312 | cups_page_header2_t *h, /* O - Page header */ | |
1313 | int *preferred_bits)/* O - Preferred bits per color */ | |
1314 | { | |
1315 | int i; /* Index into array */ | |
1316 | _cups_ps_obj_t *obj, /* Current object */ | |
1317 | *end; /* End of dictionary */ | |
1318 | const char *name; /* Attribute name */ | |
1319 | ||
1320 | ||
1321 | /* | |
1322 | * Make sure we have a dictionary on the stack... | |
1323 | */ | |
1324 | ||
1325 | if (st->num_objs == 0) | |
1326 | return (-1); | |
1327 | ||
1328 | obj = end = st->objs + st->num_objs - 1; | |
1329 | ||
1330 | if (obj->type != CUPS_PS_END_DICT) | |
1331 | return (-1); | |
1332 | ||
1333 | obj --; | |
1334 | ||
1335 | while (obj > st->objs) | |
1336 | { | |
1337 | if (obj->type == CUPS_PS_START_DICT) | |
1338 | break; | |
1339 | ||
1340 | obj --; | |
1341 | } | |
1342 | ||
1343 | if (obj < st->objs) | |
1344 | return (-1); | |
ef416fc2 | 1345 | |
b86bc4cf | 1346 | /* |
1347 | * Found the start of the dictionary, empty the stack to this point... | |
1348 | */ | |
1349 | ||
1350 | st->num_objs = obj - st->objs; | |
1351 | ||
1352 | /* | |
1353 | * Now pull /name and value pairs from the dictionary... | |
1354 | */ | |
1355 | ||
ae71f5de | 1356 | DEBUG_puts("setpagedevice: Dictionary:"); |
b86bc4cf | 1357 | |
1358 | for (obj ++; obj < end; obj ++) | |
1359 | { | |
ef416fc2 | 1360 | /* |
b86bc4cf | 1361 | * Grab the name... |
ef416fc2 | 1362 | */ |
1363 | ||
b86bc4cf | 1364 | if (obj->type != CUPS_PS_NAME) |
1365 | return (-1); | |
1366 | ||
1367 | name = obj->value.name; | |
1368 | obj ++; | |
1369 | ||
1370 | #ifdef DEBUG | |
ae71f5de | 1371 | DEBUG_printf(("setpagedevice: /%s ", name)); |
b86bc4cf | 1372 | DEBUG_object(obj); |
b86bc4cf | 1373 | #endif /* DEBUG */ |
1374 | ||
1375 | /* | |
1376 | * Then grab the value... | |
1377 | */ | |
1378 | ||
1379 | if (!strcmp(name, "MediaClass") && obj->type == CUPS_PS_STRING) | |
1380 | strlcpy(h->MediaClass, obj->value.string, sizeof(h->MediaClass)); | |
1381 | else if (!strcmp(name, "MediaColor") && obj->type == CUPS_PS_STRING) | |
1382 | strlcpy(h->MediaColor, obj->value.string, sizeof(h->MediaColor)); | |
1383 | else if (!strcmp(name, "MediaType") && obj->type == CUPS_PS_STRING) | |
1384 | strlcpy(h->MediaType, obj->value.string, sizeof(h->MediaType)); | |
1385 | else if (!strcmp(name, "OutputType") && obj->type == CUPS_PS_STRING) | |
1386 | strlcpy(h->OutputType, obj->value.string, sizeof(h->OutputType)); | |
1387 | else if (!strcmp(name, "AdvanceDistance") && obj->type == CUPS_PS_NUMBER) | |
1388 | h->AdvanceDistance = (unsigned)obj->value.number; | |
1389 | else if (!strcmp(name, "AdvanceMedia") && obj->type == CUPS_PS_NUMBER) | |
1390 | h->AdvanceMedia = (unsigned)obj->value.number; | |
1391 | else if (!strcmp(name, "Collate") && obj->type == CUPS_PS_BOOLEAN) | |
1392 | h->Collate = (unsigned)obj->value.boolean; | |
1393 | else if (!strcmp(name, "CutMedia") && obj->type == CUPS_PS_NUMBER) | |
1394 | h->CutMedia = (cups_cut_t)(unsigned)obj->value.number; | |
1395 | else if (!strcmp(name, "Duplex") && obj->type == CUPS_PS_BOOLEAN) | |
1396 | h->Duplex = (unsigned)obj->value.boolean; | |
1397 | else if (!strcmp(name, "HWResolution") && obj->type == CUPS_PS_START_ARRAY) | |
ef416fc2 | 1398 | { |
b86bc4cf | 1399 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && |
1400 | obj[3].type == CUPS_PS_END_ARRAY) | |
1401 | { | |
1402 | h->HWResolution[0] = (unsigned)obj[1].value.number; | |
1403 | h->HWResolution[1] = (unsigned)obj[2].value.number; | |
1404 | obj += 3; | |
1405 | } | |
1406 | else | |
ef416fc2 | 1407 | return (-1); |
1408 | } | |
b86bc4cf | 1409 | else if (!strcmp(name, "InsertSheet") && obj->type == CUPS_PS_BOOLEAN) |
1410 | h->InsertSheet = (unsigned)obj->value.boolean; | |
1411 | else if (!strcmp(name, "Jog") && obj->type == CUPS_PS_NUMBER) | |
1412 | h->Jog = (unsigned)obj->value.number; | |
1413 | else if (!strcmp(name, "LeadingEdge") && obj->type == CUPS_PS_NUMBER) | |
1414 | h->LeadingEdge = (unsigned)obj->value.number; | |
1415 | else if (!strcmp(name, "ManualFeed") && obj->type == CUPS_PS_BOOLEAN) | |
1416 | h->ManualFeed = (unsigned)obj->value.boolean; | |
09a101d6 | 1417 | else if ((!strcmp(name, "cupsMediaPosition") || |
b86bc4cf | 1418 | !strcmp(name, "MediaPosition")) && obj->type == CUPS_PS_NUMBER) |
09a101d6 | 1419 | { |
1420 | /* | |
1421 | * cupsMediaPosition is supported for backwards compatibility only. | |
1422 | * We added it back in the Ghostscript 5.50 days to work around a | |
1423 | * bug in Ghostscript WRT handling of MediaPosition and setpagedevice. | |
1424 | * | |
1425 | * All new development should set MediaPosition... | |
1426 | */ | |
1427 | ||
b86bc4cf | 1428 | h->MediaPosition = (unsigned)obj->value.number; |
09a101d6 | 1429 | } |
b86bc4cf | 1430 | else if (!strcmp(name, "MediaWeight") && obj->type == CUPS_PS_NUMBER) |
1431 | h->MediaWeight = (unsigned)obj->value.number; | |
1432 | else if (!strcmp(name, "MirrorPrint") && obj->type == CUPS_PS_BOOLEAN) | |
1433 | h->MirrorPrint = (unsigned)obj->value.boolean; | |
1434 | else if (!strcmp(name, "NegativePrint") && obj->type == CUPS_PS_BOOLEAN) | |
1435 | h->NegativePrint = (unsigned)obj->value.boolean; | |
1436 | else if (!strcmp(name, "NumCopies") && obj->type == CUPS_PS_NUMBER) | |
1437 | h->NumCopies = (unsigned)obj->value.number; | |
1438 | else if (!strcmp(name, "Orientation") && obj->type == CUPS_PS_NUMBER) | |
1439 | h->Orientation = (unsigned)obj->value.number; | |
1440 | else if (!strcmp(name, "OutputFaceUp") && obj->type == CUPS_PS_BOOLEAN) | |
1441 | h->OutputFaceUp = (unsigned)obj->value.boolean; | |
1442 | else if (!strcmp(name, "PageSize") && obj->type == CUPS_PS_START_ARRAY) | |
ef416fc2 | 1443 | { |
b86bc4cf | 1444 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && |
1445 | obj[3].type == CUPS_PS_END_ARRAY) | |
1446 | { | |
1447 | h->cupsPageSize[0] = obj[1].value.number; | |
1448 | h->cupsPageSize[1] = obj[2].value.number; | |
1449 | ||
1450 | h->PageSize[0] = (unsigned)obj[1].value.number; | |
1451 | h->PageSize[1] = (unsigned)obj[2].value.number; | |
1452 | ||
1453 | obj += 3; | |
1454 | } | |
1455 | else | |
fa73b229 | 1456 | return (-1); |
ef416fc2 | 1457 | } |
b86bc4cf | 1458 | else if (!strcmp(name, "Separations") && obj->type == CUPS_PS_BOOLEAN) |
1459 | h->Separations = (unsigned)obj->value.boolean; | |
1460 | else if (!strcmp(name, "TraySwitch") && obj->type == CUPS_PS_BOOLEAN) | |
1461 | h->TraySwitch = (unsigned)obj->value.boolean; | |
1462 | else if (!strcmp(name, "Tumble") && obj->type == CUPS_PS_BOOLEAN) | |
1463 | h->Tumble = (unsigned)obj->value.boolean; | |
1464 | else if (!strcmp(name, "cupsMediaType") && obj->type == CUPS_PS_NUMBER) | |
1465 | h->cupsMediaType = (unsigned)obj->value.number; | |
1466 | else if (!strcmp(name, "cupsBitsPerColor") && obj->type == CUPS_PS_NUMBER) | |
1467 | h->cupsBitsPerColor = (unsigned)obj->value.number; | |
1468 | else if (!strcmp(name, "cupsPreferredBitsPerColor") && | |
1469 | obj->type == CUPS_PS_NUMBER) | |
1470 | *preferred_bits = (int)obj->value.number; | |
1471 | else if (!strcmp(name, "cupsColorOrder") && obj->type == CUPS_PS_NUMBER) | |
1472 | h->cupsColorOrder = (cups_order_t)(unsigned)obj->value.number; | |
1473 | else if (!strcmp(name, "cupsColorSpace") && obj->type == CUPS_PS_NUMBER) | |
1474 | h->cupsColorSpace = (cups_cspace_t)(unsigned)obj->value.number; | |
1475 | else if (!strcmp(name, "cupsCompression") && obj->type == CUPS_PS_NUMBER) | |
1476 | h->cupsCompression = (unsigned)obj->value.number; | |
1477 | else if (!strcmp(name, "cupsRowCount") && obj->type == CUPS_PS_NUMBER) | |
1478 | h->cupsRowCount = (unsigned)obj->value.number; | |
1479 | else if (!strcmp(name, "cupsRowFeed") && obj->type == CUPS_PS_NUMBER) | |
1480 | h->cupsRowFeed = (unsigned)obj->value.number; | |
1481 | else if (!strcmp(name, "cupsRowStep") && obj->type == CUPS_PS_NUMBER) | |
1482 | h->cupsRowStep = (unsigned)obj->value.number; | |
923edb68 | 1483 | else if (!strcmp(name, "cupsBorderlessScalingFactor") && |
b86bc4cf | 1484 | obj->type == CUPS_PS_NUMBER) |
1485 | h->cupsBorderlessScalingFactor = obj->value.number; | |
1486 | else if (!strncmp(name, "cupsInteger", 11) && obj->type == CUPS_PS_NUMBER) | |
ef416fc2 | 1487 | { |
b86bc4cf | 1488 | if ((i = atoi(name + 11)) < 0 || i > 15) |
ef416fc2 | 1489 | return (-1); |
1490 | ||
b86bc4cf | 1491 | h->cupsInteger[i] = (unsigned)obj->value.number; |
ef416fc2 | 1492 | } |
b86bc4cf | 1493 | else if (!strncmp(name, "cupsReal", 8) && obj->type == CUPS_PS_NUMBER) |
ef416fc2 | 1494 | { |
b86bc4cf | 1495 | if ((i = atoi(name + 8)) < 0 || i > 15) |
ef416fc2 | 1496 | return (-1); |
1497 | ||
b86bc4cf | 1498 | h->cupsReal[i] = obj->value.number; |
ef416fc2 | 1499 | } |
b86bc4cf | 1500 | else if (!strncmp(name, "cupsString", 10) && obj->type == CUPS_PS_STRING) |
ef416fc2 | 1501 | { |
b86bc4cf | 1502 | if ((i = atoi(name + 10)) < 0 || i > 15) |
ef416fc2 | 1503 | return (-1); |
1504 | ||
b86bc4cf | 1505 | strlcpy(h->cupsString[i], obj->value.string, sizeof(h->cupsString[i])); |
ef416fc2 | 1506 | } |
b86bc4cf | 1507 | else if (!strcmp(name, "cupsMarkerType") && obj->type == CUPS_PS_STRING) |
1508 | strlcpy(h->cupsMarkerType, obj->value.string, sizeof(h->cupsMarkerType)); | |
1509 | else if (!strcmp(name, "cupsPageSizeName") && obj->type == CUPS_PS_STRING) | |
1510 | strlcpy(h->cupsPageSizeName, obj->value.string, | |
1511 | sizeof(h->cupsPageSizeName)); | |
1512 | else if (!strcmp(name, "cupsRenderingIntent") && | |
1513 | obj->type == CUPS_PS_STRING) | |
1514 | strlcpy(h->cupsRenderingIntent, obj->value.string, | |
1515 | sizeof(h->cupsRenderingIntent)); | |
1516 | else | |
ef416fc2 | 1517 | { |
b86bc4cf | 1518 | /* |
1519 | * Ignore unknown name+value... | |
1520 | */ | |
1521 | ||
1522 | DEBUG_printf((" Unknown name (\"%s\") or value...\n", name)); | |
1523 | ||
1524 | while (obj[1].type != CUPS_PS_NAME && obj < end) | |
1525 | obj ++; | |
ef416fc2 | 1526 | } |
ef416fc2 | 1527 | } |
1528 | ||
ef416fc2 | 1529 | return (0); |
1530 | } | |
1531 | ||
1532 | ||
b86bc4cf | 1533 | #ifdef DEBUG |
1534 | /* | |
1535 | * 'DEBUG_object()' - Print an object's value... | |
1536 | */ | |
1537 | ||
1538 | static void | |
1539 | DEBUG_object(_cups_ps_obj_t *obj) /* I - Object to print */ | |
1540 | { | |
1541 | switch (obj->type) | |
1542 | { | |
1543 | case CUPS_PS_NAME : | |
ae71f5de | 1544 | DEBUG_printf(("/%s\n", obj->value.name)); |
b86bc4cf | 1545 | break; |
1546 | ||
1547 | case CUPS_PS_NUMBER : | |
ae71f5de | 1548 | DEBUG_printf(("%g\n", obj->value.number)); |
b86bc4cf | 1549 | break; |
1550 | ||
1551 | case CUPS_PS_STRING : | |
ae71f5de | 1552 | DEBUG_printf(("(%s)\n", obj->value.string)); |
b86bc4cf | 1553 | break; |
1554 | ||
1555 | case CUPS_PS_BOOLEAN : | |
1556 | if (obj->value.boolean) | |
ae71f5de | 1557 | DEBUG_puts("true"); |
b86bc4cf | 1558 | else |
ae71f5de | 1559 | DEBUG_puts("false"); |
b86bc4cf | 1560 | break; |
1561 | ||
1562 | case CUPS_PS_NULL : | |
ae71f5de | 1563 | DEBUG_puts("null"); |
b86bc4cf | 1564 | break; |
1565 | ||
1566 | case CUPS_PS_START_ARRAY : | |
ae71f5de | 1567 | DEBUG_puts("["); |
b86bc4cf | 1568 | break; |
1569 | ||
1570 | case CUPS_PS_END_ARRAY : | |
ae71f5de | 1571 | DEBUG_puts("]"); |
b86bc4cf | 1572 | break; |
1573 | ||
1574 | case CUPS_PS_START_DICT : | |
ae71f5de | 1575 | DEBUG_puts("<<"); |
b86bc4cf | 1576 | break; |
1577 | ||
1578 | case CUPS_PS_END_DICT : | |
ae71f5de | 1579 | DEBUG_puts(">>"); |
b86bc4cf | 1580 | break; |
1581 | ||
1582 | case CUPS_PS_START_PROC : | |
ae71f5de | 1583 | DEBUG_puts("{"); |
b86bc4cf | 1584 | break; |
1585 | ||
1586 | case CUPS_PS_END_PROC : | |
ae71f5de | 1587 | DEBUG_puts("}"); |
b86bc4cf | 1588 | break; |
1589 | ||
1590 | case CUPS_PS_CLEARTOMARK : | |
ae71f5de | 1591 | DEBUG_puts("--cleartomark--"); |
b86bc4cf | 1592 | break; |
1593 | ||
1594 | case CUPS_PS_COPY : | |
ae71f5de | 1595 | DEBUG_puts("--copy--"); |
b86bc4cf | 1596 | break; |
1597 | ||
1598 | case CUPS_PS_DUP : | |
ae71f5de | 1599 | DEBUG_puts("--dup--"); |
b86bc4cf | 1600 | break; |
1601 | ||
1602 | case CUPS_PS_INDEX : | |
ae71f5de | 1603 | DEBUG_puts("--index--"); |
b86bc4cf | 1604 | break; |
1605 | ||
1606 | case CUPS_PS_POP : | |
ae71f5de | 1607 | DEBUG_puts("--pop--"); |
b86bc4cf | 1608 | break; |
1609 | ||
1610 | case CUPS_PS_ROLL : | |
ae71f5de | 1611 | DEBUG_puts("--roll--"); |
b86bc4cf | 1612 | break; |
1613 | ||
1614 | case CUPS_PS_SETPAGEDEVICE : | |
ae71f5de | 1615 | DEBUG_puts("--setpagedevice--"); |
b86bc4cf | 1616 | break; |
1617 | ||
1618 | case CUPS_PS_STOPPED : | |
ae71f5de | 1619 | DEBUG_puts("--stopped--"); |
b86bc4cf | 1620 | break; |
1621 | ||
1622 | case CUPS_PS_OTHER : | |
ae71f5de | 1623 | DEBUG_printf(("--%s--\n", obj->value.other)); |
b86bc4cf | 1624 | break; |
1625 | } | |
1626 | } | |
1627 | ||
1628 | ||
1629 | /* | |
1630 | * 'DEBUG_stack()' - Print a stack... | |
1631 | */ | |
1632 | ||
1633 | static void | |
1634 | DEBUG_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
1635 | { | |
1636 | int c; /* Looping var */ | |
1637 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
1638 | ||
1639 | ||
1640 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
b86bc4cf | 1641 | DEBUG_object(obj); |
b86bc4cf | 1642 | } |
1643 | #endif /* DEBUG */ | |
1644 | ||
1645 | ||
ef416fc2 | 1646 | /* |
b19ccc9e | 1647 | * End of "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $". |
ef416fc2 | 1648 | */ |