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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 | |
e38f5e9c MS |
207 | #ifdef __APPLE__ |
208 | /* | |
209 | * cupsInteger0 is also used for the total page count on Mac OS X; set an | |
210 | * uncommon default value so we can tell if the driver is using cupsInteger0. | |
211 | */ | |
212 | ||
213 | h->cupsInteger[0] = 0x80000000; | |
214 | #endif /* __APPLE__ */ | |
215 | ||
ef416fc2 | 216 | /* |
217 | * Apply patches and options to the page header... | |
218 | */ | |
219 | ||
a74454a7 | 220 | status = 0; |
221 | preferred_bits = 0; | |
ef416fc2 | 222 | |
223 | if (ppd) | |
224 | { | |
225 | /* | |
226 | * Apply any patch code (used to override the defaults...) | |
227 | */ | |
228 | ||
229 | if (ppd->patches) | |
b86bc4cf | 230 | status |= _cupsRasterExecPS(h, &preferred_bits, ppd->patches); |
ef416fc2 | 231 | |
232 | /* | |
233 | * Then apply printer options in the proper order... | |
234 | */ | |
235 | ||
b86bc4cf | 236 | if ((code = ppdEmitString(ppd, PPD_ORDER_DOCUMENT, 0.0)) != NULL) |
ef416fc2 | 237 | { |
b86bc4cf | 238 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
239 | free(code); | |
ef416fc2 | 240 | } |
241 | ||
b86bc4cf | 242 | if ((code = ppdEmitString(ppd, PPD_ORDER_ANY, 0.0)) != NULL) |
ef416fc2 | 243 | { |
b86bc4cf | 244 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
245 | free(code); | |
ef416fc2 | 246 | } |
247 | ||
b86bc4cf | 248 | if ((code = ppdEmitString(ppd, PPD_ORDER_PROLOG, 0.0)) != NULL) |
ef416fc2 | 249 | { |
b86bc4cf | 250 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
251 | free(code); | |
ef416fc2 | 252 | } |
253 | ||
b86bc4cf | 254 | if ((code = ppdEmitString(ppd, PPD_ORDER_PAGE, 0.0)) != NULL) |
ef416fc2 | 255 | { |
b86bc4cf | 256 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
257 | free(code); | |
ef416fc2 | 258 | } |
259 | } | |
260 | ||
923edb68 | 261 | /* |
262 | * Allow option override for page scaling... | |
263 | */ | |
264 | ||
265 | if ((val = cupsGetOption("cupsBorderlessScalingFactor", num_options, | |
266 | options)) != NULL) | |
267 | { | |
268 | float sc = atof(val); | |
269 | ||
06d4e77b | 270 | if (sc >= 0.1 && sc <= 2.0) |
923edb68 | 271 | h->cupsBorderlessScalingFactor = sc; |
272 | } | |
273 | ||
ef416fc2 | 274 | /* |
275 | * Get the margins for the current size... | |
276 | */ | |
277 | ||
278 | if ((size = ppdPageSize(ppd, NULL)) != NULL) | |
279 | { | |
280 | /* | |
281 | * Use the margins from the PPD file... | |
282 | */ | |
283 | ||
284 | left = size->left; | |
285 | bottom = size->bottom; | |
286 | right = size->right; | |
287 | top = size->top; | |
fa73b229 | 288 | |
289 | strlcpy(h->cupsPageSizeName, size->name, sizeof(h->cupsPageSizeName)); | |
07725fee | 290 | |
291 | h->cupsPageSize[0] = size->width; | |
292 | h->cupsPageSize[1] = size->length; | |
ef416fc2 | 293 | } |
294 | else | |
295 | { | |
296 | /* | |
297 | * Use the default margins... | |
298 | */ | |
299 | ||
300 | left = 0.0f; | |
301 | bottom = 0.0f; | |
302 | right = 612.0f; | |
303 | top = 792.0f; | |
304 | } | |
305 | ||
923edb68 | 306 | h->PageSize[0] = h->cupsPageSize[0] * |
307 | h->cupsBorderlessScalingFactor; | |
308 | h->PageSize[1] = h->cupsPageSize[1] * | |
309 | h->cupsBorderlessScalingFactor; | |
310 | h->Margins[0] = left * h->cupsBorderlessScalingFactor; | |
311 | h->Margins[1] = bottom * h->cupsBorderlessScalingFactor; | |
312 | h->ImagingBoundingBox[0] = left * h->cupsBorderlessScalingFactor; | |
313 | h->ImagingBoundingBox[1] = bottom * h->cupsBorderlessScalingFactor; | |
314 | h->ImagingBoundingBox[2] = right * h->cupsBorderlessScalingFactor; | |
315 | h->ImagingBoundingBox[3] = top * h->cupsBorderlessScalingFactor; | |
fa73b229 | 316 | h->cupsImagingBBox[0] = left; |
317 | h->cupsImagingBBox[1] = bottom; | |
318 | h->cupsImagingBBox[2] = right; | |
319 | h->cupsImagingBBox[3] = top; | |
ef416fc2 | 320 | |
a74454a7 | 321 | /* |
322 | * Use the callback to validate the page header... | |
323 | */ | |
324 | ||
325 | if (func && (*func)(h, preferred_bits)) | |
f7deaa1a | 326 | { |
327 | _cupsRasterAddError("Page header callback returned error.\n"); | |
a74454a7 | 328 | return (-1); |
f7deaa1a | 329 | } |
a74454a7 | 330 | |
a9252913 | 331 | /* |
332 | * Check parameters... | |
333 | */ | |
334 | ||
335 | if (!h->HWResolution[0] || !h->HWResolution[1] || | |
336 | !h->PageSize[0] || !h->PageSize[1] || | |
337 | (h->cupsBitsPerColor != 1 && h->cupsBitsPerColor != 2 && | |
338 | h->cupsBitsPerColor != 4 && h->cupsBitsPerColor != 8 && | |
339 | h->cupsBitsPerColor != 16) || | |
06d4e77b | 340 | h->cupsBorderlessScalingFactor < 0.1 || |
b86bc4cf | 341 | h->cupsBorderlessScalingFactor > 2.0) |
f7deaa1a | 342 | { |
343 | _cupsRasterAddError("Page header uses unsupported values.\n"); | |
a9252913 | 344 | return (-1); |
f7deaa1a | 345 | } |
a9252913 | 346 | |
ef416fc2 | 347 | /* |
348 | * Compute the bitmap parameters... | |
349 | */ | |
350 | ||
923edb68 | 351 | h->cupsWidth = (int)((right - left) * h->cupsBorderlessScalingFactor * |
fa73b229 | 352 | h->HWResolution[0] / 72.0f + 0.5f); |
923edb68 | 353 | h->cupsHeight = (int)((top - bottom) * h->cupsBorderlessScalingFactor * |
fa73b229 | 354 | h->HWResolution[1] / 72.0f + 0.5f); |
ef416fc2 | 355 | |
356 | switch (h->cupsColorSpace) | |
357 | { | |
358 | case CUPS_CSPACE_W : | |
359 | case CUPS_CSPACE_K : | |
360 | case CUPS_CSPACE_WHITE : | |
361 | case CUPS_CSPACE_GOLD : | |
362 | case CUPS_CSPACE_SILVER : | |
363 | h->cupsNumColors = 1; | |
364 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
365 | break; | |
366 | ||
367 | default : | |
368 | /* | |
369 | * Ensure that colorimetric colorspaces use at least 8 bits per | |
370 | * component... | |
371 | */ | |
372 | ||
373 | if (h->cupsColorSpace >= CUPS_CSPACE_CIEXYZ && | |
374 | h->cupsBitsPerColor < 8) | |
375 | h->cupsBitsPerColor = 8; | |
376 | ||
377 | /* | |
378 | * Figure out the number of bits per pixel... | |
379 | */ | |
380 | ||
381 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
382 | { | |
383 | if (h->cupsBitsPerColor >= 8) | |
384 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 3; | |
385 | else | |
386 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
387 | } | |
388 | else | |
389 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
390 | ||
391 | h->cupsNumColors = 3; | |
392 | break; | |
393 | ||
394 | case CUPS_CSPACE_KCMYcm : | |
f301802f | 395 | if (h->cupsBitsPerColor == 1) |
ef416fc2 | 396 | { |
397 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
398 | h->cupsBitsPerPixel = 8; | |
399 | else | |
400 | h->cupsBitsPerPixel = 1; | |
401 | ||
402 | h->cupsNumColors = 6; | |
403 | break; | |
404 | } | |
405 | ||
406 | /* | |
407 | * Fall through to CMYK code... | |
408 | */ | |
409 | ||
410 | case CUPS_CSPACE_RGBA : | |
a74454a7 | 411 | case CUPS_CSPACE_RGBW : |
ef416fc2 | 412 | case CUPS_CSPACE_CMYK : |
413 | case CUPS_CSPACE_YMCK : | |
414 | case CUPS_CSPACE_KCMY : | |
415 | case CUPS_CSPACE_GMCK : | |
416 | case CUPS_CSPACE_GMCS : | |
417 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
418 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
419 | else | |
420 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
421 | ||
422 | h->cupsNumColors = 4; | |
423 | break; | |
424 | } | |
425 | ||
426 | h->cupsBytesPerLine = (h->cupsBitsPerPixel * h->cupsWidth + 7) / 8; | |
427 | ||
428 | if (h->cupsColorOrder == CUPS_ORDER_BANDED) | |
429 | h->cupsBytesPerLine *= h->cupsNumColors; | |
430 | ||
431 | return (status); | |
432 | } | |
433 | ||
434 | ||
435 | /* | |
b86bc4cf | 436 | * '_cupsRasterExecPS()' - Execute PostScript code to initialize a page header. |
ef416fc2 | 437 | */ |
438 | ||
b86bc4cf | 439 | int /* O - 0 on success, -1 on error */ |
440 | _cupsRasterExecPS( | |
a74454a7 | 441 | cups_page_header2_t *h, /* O - Page header */ |
442 | int *preferred_bits,/* O - Preferred bits per color */ | |
b86bc4cf | 443 | const char *code) /* I - PS code to execute */ |
ef416fc2 | 444 | { |
b86bc4cf | 445 | _cups_ps_stack_t *st; /* PostScript value stack */ |
446 | _cups_ps_obj_t *obj; /* Object from top of stack */ | |
447 | char *codecopy, /* Copy of code */ | |
448 | *codeptr; /* Pointer into copy of code */ | |
449 | ||
ef416fc2 | 450 | |
b86bc4cf | 451 | DEBUG_printf(("_cupsRasterExecPS(h=%p, preferred_bits=%p, code=\"%s\")\n", |
452 | h, preferred_bits, code ? code : "(null)")); | |
ef416fc2 | 453 | |
454 | /* | |
b86bc4cf | 455 | * Copy the PostScript code and create a stack... |
ef416fc2 | 456 | */ |
457 | ||
b86bc4cf | 458 | if ((codecopy = strdup(code)) == NULL) |
f7deaa1a | 459 | { |
460 | _cupsRasterAddError("Unable to duplicate code string.\n"); | |
b86bc4cf | 461 | return (-1); |
f7deaa1a | 462 | } |
b86bc4cf | 463 | |
464 | if ((st = new_stack()) == NULL) | |
465 | { | |
f7deaa1a | 466 | _cupsRasterAddError("Unable to create stack.\n"); |
b86bc4cf | 467 | free(codecopy); |
ef416fc2 | 468 | return (-1); |
b86bc4cf | 469 | } |
ef416fc2 | 470 | |
471 | /* | |
b86bc4cf | 472 | * Parse the PS string until we run out of data... |
ef416fc2 | 473 | */ |
474 | ||
b86bc4cf | 475 | codeptr = codecopy; |
476 | ||
477 | while ((obj = scan_ps(st, &codeptr)) != NULL) | |
ef416fc2 | 478 | { |
b86bc4cf | 479 | #ifdef DEBUG |
ae71f5de | 480 | DEBUG_printf(("_cupsRasterExecPS: Stack (%d objects)\n", st->num_objs)); |
b86bc4cf | 481 | DEBUG_object(obj); |
b86bc4cf | 482 | #endif /* DEBUG */ |
483 | ||
484 | switch (obj->type) | |
485 | { | |
486 | default : | |
487 | /* Do nothing for regular values */ | |
488 | break; | |
489 | ||
490 | case CUPS_PS_CLEARTOMARK : | |
491 | pop_stack(st); | |
492 | ||
f7deaa1a | 493 | if (cleartomark_stack(st)) |
494 | _cupsRasterAddError("cleartomark: Stack underflow!\n"); | |
b86bc4cf | 495 | |
496 | #ifdef DEBUG | |
ae71f5de | 497 | DEBUG_puts(" dup: "); |
b86bc4cf | 498 | DEBUG_stack(st); |
499 | #endif /* DEBUG */ | |
500 | break; | |
501 | ||
502 | case CUPS_PS_COPY : | |
503 | pop_stack(st); | |
504 | if ((obj = pop_stack(st)) != NULL) | |
505 | { | |
506 | copy_stack(st, (int)obj->value.number); | |
507 | ||
508 | #ifdef DEBUG | |
ae71f5de | 509 | DEBUG_puts("_cupsRasterExecPS: copy"); |
b86bc4cf | 510 | DEBUG_stack(st); |
511 | #endif /* DEBUG */ | |
512 | } | |
513 | break; | |
514 | ||
515 | case CUPS_PS_DUP : | |
516 | pop_stack(st); | |
517 | copy_stack(st, 1); | |
518 | ||
519 | #ifdef DEBUG | |
ae71f5de | 520 | DEBUG_puts("_cupsRasterExecPS: dup"); |
b86bc4cf | 521 | DEBUG_stack(st); |
522 | #endif /* DEBUG */ | |
523 | break; | |
524 | ||
525 | case CUPS_PS_INDEX : | |
526 | pop_stack(st); | |
527 | if ((obj = pop_stack(st)) != NULL) | |
528 | { | |
529 | index_stack(st, (int)obj->value.number); | |
530 | ||
531 | #ifdef DEBUG | |
ae71f5de | 532 | DEBUG_puts("_cupsRasterExecPS: index"); |
b86bc4cf | 533 | DEBUG_stack(st); |
534 | #endif /* DEBUG */ | |
535 | } | |
536 | break; | |
537 | ||
538 | case CUPS_PS_POP : | |
539 | pop_stack(st); | |
540 | pop_stack(st); | |
541 | ||
542 | #ifdef DEBUG | |
ae71f5de | 543 | DEBUG_puts("_cupsRasterExecPS: pop"); |
b86bc4cf | 544 | DEBUG_stack(st); |
545 | #endif /* DEBUG */ | |
546 | break; | |
547 | ||
548 | case CUPS_PS_ROLL : | |
549 | pop_stack(st); | |
550 | if ((obj = pop_stack(st)) != NULL) | |
551 | { | |
552 | int c; /* Count */ | |
ef416fc2 | 553 | |
ef416fc2 | 554 | |
b86bc4cf | 555 | c = (int)obj->value.number; |
556 | ||
557 | if ((obj = pop_stack(st)) != NULL) | |
558 | { | |
559 | roll_stack(st, (int)obj->value.number, c); | |
560 | ||
561 | #ifdef DEBUG | |
ae71f5de | 562 | DEBUG_puts("_cupsRasterExecPS: roll"); |
b86bc4cf | 563 | DEBUG_stack(st); |
564 | #endif /* DEBUG */ | |
565 | } | |
566 | } | |
567 | break; | |
568 | ||
569 | case CUPS_PS_SETPAGEDEVICE : | |
570 | pop_stack(st); | |
571 | setpagedevice(st, h, preferred_bits); | |
572 | ||
573 | #ifdef DEBUG | |
ae71f5de | 574 | DEBUG_puts("_cupsRasterExecPS: setpagedevice"); |
b86bc4cf | 575 | DEBUG_stack(st); |
576 | #endif /* DEBUG */ | |
577 | break; | |
578 | ||
579 | case CUPS_PS_START_PROC : | |
580 | case CUPS_PS_END_PROC : | |
581 | case CUPS_PS_STOPPED : | |
582 | pop_stack(st); | |
583 | break; | |
584 | ||
585 | case CUPS_PS_OTHER : | |
f7deaa1a | 586 | _cupsRasterAddError("Unknown operator \"%s\"!\n", obj->value.other); |
ae71f5de MS |
587 | DEBUG_printf(("_cupsRasterExecPS: Unknown operator \"%s\"!\n", |
588 | obj->value.other)); | |
b86bc4cf | 589 | break; |
590 | } | |
591 | ||
91c84a35 | 592 | if (obj && obj->type == CUPS_PS_OTHER) |
ef416fc2 | 593 | break; |
b86bc4cf | 594 | } |
595 | ||
596 | /* | |
597 | * Cleanup... | |
598 | */ | |
599 | ||
600 | free(codecopy); | |
601 | ||
602 | if (st->num_objs > 0) | |
603 | { | |
f7deaa1a | 604 | error_stack(st, "Stack not empty:"); |
605 | ||
b86bc4cf | 606 | #ifdef DEBUG |
ae71f5de | 607 | DEBUG_puts("_cupsRasterExecPS: Stack not empty:"); |
b86bc4cf | 608 | DEBUG_stack(st); |
609 | #endif /* DEBUG */ | |
ef416fc2 | 610 | |
b86bc4cf | 611 | delete_stack(st); |
612 | ||
613 | return (-1); | |
614 | } | |
615 | ||
616 | delete_stack(st); | |
617 | ||
618 | /* | |
619 | * Return success... | |
620 | */ | |
621 | ||
622 | return (0); | |
623 | } | |
624 | ||
625 | ||
626 | /* | |
627 | * 'cleartomark_stack()' - Clear to the last mark ([) on the stack. | |
628 | */ | |
629 | ||
630 | static int /* O - 0 on success, -1 on error */ | |
631 | cleartomark_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
632 | { | |
633 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
634 | ||
635 | ||
636 | while ((obj = pop_stack(st)) != NULL) | |
637 | if (obj->type == CUPS_PS_START_ARRAY) | |
638 | break; | |
639 | ||
640 | return (obj ? 0 : -1); | |
641 | } | |
642 | ||
643 | ||
644 | /* | |
645 | * 'copy_stack()' - Copy the top N stack objects. | |
646 | */ | |
647 | ||
648 | static int /* O - 0 on success, -1 on error */ | |
649 | copy_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
650 | int c) /* I - Number of objects to copy */ | |
651 | { | |
652 | int n; /* Index */ | |
653 | ||
654 | ||
655 | if (c < 0) | |
656 | return (-1); | |
657 | else if (c == 0) | |
658 | return (0); | |
659 | ||
660 | if ((n = st->num_objs - c) < 0) | |
661 | return (-1); | |
662 | ||
663 | while (c > 0) | |
664 | { | |
665 | if (!push_stack(st, st->objs + n)) | |
666 | return (-1); | |
667 | ||
668 | n ++; | |
669 | c --; | |
670 | } | |
671 | ||
672 | return (0); | |
673 | } | |
674 | ||
675 | ||
676 | /* | |
677 | * 'delete_stack()' - Free memory used by a stack. | |
678 | */ | |
679 | ||
680 | static void | |
681 | delete_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
682 | { | |
683 | free(st->objs); | |
684 | free(st); | |
685 | } | |
686 | ||
687 | ||
f7deaa1a | 688 | /* |
689 | * 'error_object()' - Add an object's value to the current error message. | |
690 | */ | |
691 | ||
692 | static void | |
693 | error_object(_cups_ps_obj_t *obj) /* I - Object to add */ | |
694 | { | |
695 | switch (obj->type) | |
696 | { | |
697 | case CUPS_PS_NAME : | |
698 | _cupsRasterAddError(" /%s", obj->value.name); | |
699 | break; | |
700 | ||
701 | case CUPS_PS_NUMBER : | |
702 | _cupsRasterAddError(" %g", obj->value.number); | |
703 | break; | |
704 | ||
705 | case CUPS_PS_STRING : | |
706 | _cupsRasterAddError(" (%s)", obj->value.string); | |
707 | break; | |
708 | ||
709 | case CUPS_PS_BOOLEAN : | |
710 | if (obj->value.boolean) | |
711 | _cupsRasterAddError(" true"); | |
712 | else | |
713 | _cupsRasterAddError(" false"); | |
714 | break; | |
715 | ||
716 | case CUPS_PS_NULL : | |
717 | _cupsRasterAddError(" null"); | |
718 | break; | |
719 | ||
720 | case CUPS_PS_START_ARRAY : | |
721 | _cupsRasterAddError(" ["); | |
722 | break; | |
723 | ||
724 | case CUPS_PS_END_ARRAY : | |
725 | _cupsRasterAddError(" ]"); | |
726 | break; | |
727 | ||
728 | case CUPS_PS_START_DICT : | |
729 | _cupsRasterAddError(" <<"); | |
730 | break; | |
731 | ||
732 | case CUPS_PS_END_DICT : | |
733 | _cupsRasterAddError(" >>"); | |
734 | break; | |
735 | ||
736 | case CUPS_PS_START_PROC : | |
737 | _cupsRasterAddError(" {"); | |
738 | break; | |
739 | ||
740 | case CUPS_PS_END_PROC : | |
741 | _cupsRasterAddError(" }"); | |
742 | break; | |
743 | ||
744 | case CUPS_PS_COPY : | |
745 | _cupsRasterAddError(" --copy--"); | |
746 | break; | |
747 | ||
748 | case CUPS_PS_CLEARTOMARK : | |
749 | _cupsRasterAddError(" --cleartomark--"); | |
750 | break; | |
751 | ||
752 | case CUPS_PS_DUP : | |
753 | _cupsRasterAddError(" --dup--"); | |
754 | break; | |
755 | ||
756 | case CUPS_PS_INDEX : | |
757 | _cupsRasterAddError(" --index--"); | |
758 | break; | |
759 | ||
760 | case CUPS_PS_POP : | |
761 | _cupsRasterAddError(" --pop--"); | |
762 | break; | |
763 | ||
764 | case CUPS_PS_ROLL : | |
765 | _cupsRasterAddError(" --roll--"); | |
766 | break; | |
767 | ||
768 | case CUPS_PS_SETPAGEDEVICE : | |
769 | _cupsRasterAddError(" --setpagedevice--"); | |
770 | break; | |
771 | ||
772 | case CUPS_PS_STOPPED : | |
773 | _cupsRasterAddError(" --stopped--"); | |
774 | break; | |
775 | ||
776 | case CUPS_PS_OTHER : | |
777 | _cupsRasterAddError(" --%s--", obj->value.other); | |
778 | break; | |
779 | } | |
780 | } | |
781 | ||
782 | ||
783 | /* | |
784 | * 'error_stack()' - Add a stack to the current error message... | |
785 | */ | |
786 | ||
787 | static void | |
788 | error_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
789 | const char *title) /* I - Title string */ | |
790 | { | |
791 | int c; /* Looping var */ | |
792 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
793 | ||
794 | ||
795 | _cupsRasterAddError(title); | |
796 | ||
797 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
798 | error_object(obj); | |
799 | ||
800 | _cupsRasterAddError("\n"); | |
801 | } | |
802 | ||
803 | ||
b86bc4cf | 804 | /* |
805 | * 'index_stack()' - Copy the Nth value on the stack. | |
806 | */ | |
807 | ||
808 | static _cups_ps_obj_t * /* O - New object */ | |
809 | index_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
810 | int n) /* I - Object index */ | |
811 | { | |
812 | if (n < 0 || (n = st->num_objs - n - 1) < 0) | |
813 | return (NULL); | |
814 | ||
815 | return (push_stack(st, st->objs + n)); | |
816 | } | |
817 | ||
818 | ||
819 | /* | |
820 | * 'new_stack()' - Create a new stack. | |
821 | */ | |
822 | ||
823 | static _cups_ps_stack_t * /* O - New stack */ | |
824 | new_stack(void) | |
825 | { | |
826 | _cups_ps_stack_t *st; /* New stack */ | |
827 | ||
828 | ||
829 | if ((st = calloc(1, sizeof(_cups_ps_stack_t))) == NULL) | |
830 | return (NULL); | |
831 | ||
832 | st->alloc_objs = 32; | |
833 | ||
834 | if ((st->objs = calloc(32, sizeof(_cups_ps_obj_t))) == NULL) | |
835 | { | |
836 | free(st); | |
837 | return (NULL); | |
838 | } | |
839 | else | |
840 | return (st); | |
841 | } | |
842 | ||
843 | ||
844 | /* | |
845 | * 'pop_stock()' - Pop the top object off the stack. | |
846 | */ | |
847 | ||
848 | static _cups_ps_obj_t * /* O - Object */ | |
849 | pop_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
850 | { | |
851 | if (st->num_objs > 0) | |
852 | { | |
853 | st->num_objs --; | |
854 | ||
855 | return (st->objs + st->num_objs); | |
856 | } | |
857 | else | |
858 | return (NULL); | |
859 | } | |
860 | ||
861 | ||
862 | /* | |
863 | * 'push_stack()' - Push an object on the stack. | |
864 | */ | |
865 | ||
866 | static _cups_ps_obj_t * /* O - New object */ | |
867 | push_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
868 | _cups_ps_obj_t *obj) /* I - Object */ | |
869 | { | |
870 | _cups_ps_obj_t *temp; /* New object */ | |
871 | ||
872 | ||
873 | if (st->num_objs >= st->alloc_objs) | |
874 | { | |
875 | ||
876 | ||
877 | st->alloc_objs += 32; | |
878 | ||
879 | if ((temp = realloc(st->objs, st->alloc_objs * | |
880 | sizeof(_cups_ps_obj_t))) == NULL) | |
881 | return (NULL); | |
882 | ||
883 | st->objs = temp; | |
884 | memset(temp + st->num_objs, 0, 32 * sizeof(_cups_ps_obj_t)); | |
885 | } | |
886 | ||
887 | temp = st->objs + st->num_objs; | |
888 | st->num_objs ++; | |
889 | ||
890 | memcpy(temp, obj, sizeof(_cups_ps_obj_t)); | |
891 | ||
892 | return (temp); | |
893 | } | |
894 | ||
895 | ||
896 | /* | |
897 | * 'roll_stack()' - Rotate stack objects. | |
898 | */ | |
899 | ||
900 | static int /* O - 0 on success, -1 on error */ | |
901 | roll_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
902 | int c, /* I - Number of objects */ | |
903 | int s) /* I - Amount to shift */ | |
904 | { | |
905 | _cups_ps_obj_t *temp; /* Temporary array of objects */ | |
906 | int n; /* Index into array */ | |
907 | ||
908 | ||
909 | DEBUG_printf((" roll_stack(st=%p, s=%d, c=%d)\n", st, s, c)); | |
910 | ||
911 | /* | |
912 | * Range check input... | |
913 | */ | |
914 | ||
915 | if (c < 0) | |
916 | return (-1); | |
917 | else if (c == 0) | |
918 | return (0); | |
919 | ||
920 | if ((n = st->num_objs - c) < 0) | |
921 | return (-1); | |
922 | ||
923 | s %= c; | |
924 | ||
925 | if (s == 0) | |
926 | return (0); | |
927 | ||
928 | /* | |
929 | * Copy N objects and move things around... | |
930 | */ | |
931 | ||
932 | if (s < 0) | |
933 | { | |
ef416fc2 | 934 | /* |
b86bc4cf | 935 | * Shift down... |
ef416fc2 | 936 | */ |
937 | ||
b86bc4cf | 938 | s = -s; |
ef416fc2 | 939 | |
b86bc4cf | 940 | if ((temp = calloc(s, sizeof(_cups_ps_obj_t))) == NULL) |
941 | return (-1); | |
ef416fc2 | 942 | |
b86bc4cf | 943 | memcpy(temp, st->objs + n, s * sizeof(_cups_ps_obj_t)); |
944 | memmove(st->objs + n, st->objs + n + s, (c - s) * sizeof(_cups_ps_obj_t)); | |
945 | memcpy(st->objs + n + c - s, temp, s * sizeof(_cups_ps_obj_t)); | |
946 | } | |
947 | else | |
948 | { | |
ef416fc2 | 949 | /* |
b86bc4cf | 950 | * Shift up... |
ef416fc2 | 951 | */ |
952 | ||
b86bc4cf | 953 | if ((temp = calloc(s, sizeof(_cups_ps_obj_t))) == NULL) |
954 | return (-1); | |
ef416fc2 | 955 | |
b86bc4cf | 956 | memcpy(temp, st->objs + n + c - s, s * sizeof(_cups_ps_obj_t)); |
957 | memmove(st->objs + n + s, st->objs + n, | |
958 | (c - s) * sizeof(_cups_ps_obj_t)); | |
959 | memcpy(st->objs + n, temp, s * sizeof(_cups_ps_obj_t)); | |
960 | } | |
ef416fc2 | 961 | |
b86bc4cf | 962 | free(temp); |
963 | ||
964 | return (0); | |
965 | } | |
ef416fc2 | 966 | |
ef416fc2 | 967 | |
b86bc4cf | 968 | /* |
969 | * 'scan_ps()' - Scan a string for the next PS object. | |
970 | */ | |
971 | ||
972 | static _cups_ps_obj_t * /* O - New object or NULL on EOF */ | |
973 | scan_ps(_cups_ps_stack_t *st, /* I - Stack */ | |
974 | char **ptr) /* IO - String pointer */ | |
975 | { | |
976 | _cups_ps_obj_t obj; /* Current object */ | |
977 | char *start, /* Start of object */ | |
978 | *cur, /* Current position */ | |
979 | *valptr, /* Pointer into value string */ | |
980 | *valend; /* End of value string */ | |
981 | int parens; /* Parenthesis nesting level */ | |
ef416fc2 | 982 | |
ef416fc2 | 983 | |
b86bc4cf | 984 | /* |
985 | * Skip leading whitespace... | |
986 | */ | |
987 | ||
988 | for (cur = *ptr; *cur; cur ++) | |
989 | { | |
990 | if (*cur == '%') | |
ef416fc2 | 991 | { |
992 | /* | |
b86bc4cf | 993 | * Comment, skip to end of line... |
ef416fc2 | 994 | */ |
995 | ||
b86bc4cf | 996 | for (cur ++; *cur && *cur != '\n' && *cur != '\r'; cur ++); |
b0f6947b MS |
997 | |
998 | if (!*cur) | |
999 | cur --; | |
b86bc4cf | 1000 | } |
1001 | else if (!isspace(*cur & 255)) | |
1002 | break; | |
1003 | } | |
ef416fc2 | 1004 | |
b86bc4cf | 1005 | if (!*cur) |
1006 | { | |
1007 | *ptr = NULL; | |
ef416fc2 | 1008 | |
b86bc4cf | 1009 | return (NULL); |
1010 | } | |
ef416fc2 | 1011 | |
b86bc4cf | 1012 | /* |
1013 | * See what we have... | |
1014 | */ | |
ef416fc2 | 1015 | |
b86bc4cf | 1016 | memset(&obj, 0, sizeof(obj)); |
ef416fc2 | 1017 | |
b86bc4cf | 1018 | switch (*cur) |
1019 | { | |
1020 | case '(' : /* (string) */ | |
1021 | obj.type = CUPS_PS_STRING; | |
1022 | start = cur; | |
1023 | ||
1024 | for (cur ++, parens = 1, valptr = obj.value.string, | |
1025 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1026 | *cur; | |
1027 | cur ++) | |
1028 | { | |
1029 | if (*cur == ')' && parens == 1) | |
1030 | break; | |
1031 | ||
1032 | if (*cur == '(') | |
1033 | parens ++; | |
1034 | else if (*cur == ')') | |
1035 | parens --; | |
1036 | ||
1037 | if (valptr >= valend) | |
1038 | { | |
1039 | *ptr = start; | |
1040 | ||
1041 | return (NULL); | |
1042 | } | |
1043 | ||
1044 | if (*cur == '\\') | |
1045 | { | |
1046 | /* | |
1047 | * Decode escaped character... | |
1048 | */ | |
1049 | ||
1050 | cur ++; | |
1051 | ||
1052 | if (*cur == 'b') | |
1053 | *valptr++ = '\b'; | |
1054 | else if (*cur == 'f') | |
1055 | *valptr++ = '\f'; | |
1056 | else if (*cur == 'n') | |
1057 | *valptr++ = '\n'; | |
1058 | else if (*cur == 'r') | |
1059 | *valptr++ = '\r'; | |
1060 | else if (*cur == 't') | |
1061 | *valptr++ = '\t'; | |
1062 | else if (*cur >= '0' && *cur <= '7') | |
1063 | { | |
1064 | int ch = *cur - '0'; | |
1065 | ||
1066 | if (cur[1] >= '0' && cur[1] <= '7') | |
1067 | { | |
1068 | cur ++; | |
1069 | ch = (ch << 3) + *cur - '0'; | |
1070 | } | |
1071 | ||
1072 | if (cur[1] >= '0' && cur[1] <= '7') | |
1073 | { | |
1074 | cur ++; | |
1075 | ch = (ch << 3) + *cur - '0'; | |
1076 | } | |
1077 | ||
1078 | *valptr++ = ch; | |
1079 | } | |
1080 | else if (*cur == '\r') | |
1081 | { | |
1082 | if (cur[1] == '\n') | |
1083 | cur ++; | |
1084 | } | |
1085 | else if (*cur != '\n') | |
1086 | *valptr++ = *cur; | |
1087 | } | |
1088 | else | |
1089 | *valptr++ = *cur; | |
1090 | } | |
1091 | ||
1092 | if (*cur != ')') | |
1093 | { | |
1094 | *ptr = start; | |
1095 | ||
1096 | return (NULL); | |
1097 | } | |
1098 | ||
1099 | cur ++; | |
1100 | break; | |
1101 | ||
1102 | case '[' : /* Start array */ | |
1103 | obj.type = CUPS_PS_START_ARRAY; | |
1104 | cur ++; | |
1105 | break; | |
1106 | ||
1107 | case ']' : /* End array */ | |
1108 | obj.type = CUPS_PS_END_ARRAY; | |
1109 | cur ++; | |
1110 | break; | |
1111 | ||
1112 | case '<' : /* Start dictionary or hex string */ | |
1113 | if (cur[1] == '<') | |
1114 | { | |
1115 | obj.type = CUPS_PS_START_DICT; | |
1116 | cur += 2; | |
1117 | } | |
ef416fc2 | 1118 | else |
b86bc4cf | 1119 | { |
1120 | obj.type = CUPS_PS_STRING; | |
1121 | start = cur; | |
1122 | ||
1123 | for (cur ++, valptr = obj.value.string, | |
1124 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1125 | *cur; | |
1126 | cur ++) | |
1127 | { | |
1128 | int ch; /* Current character */ | |
1129 | ||
1130 | ||
1131 | ||
1132 | if (*cur == '>') | |
1133 | break; | |
1134 | else if (valptr >= valend || !isxdigit(*cur & 255)) | |
1135 | { | |
1136 | *ptr = start; | |
1137 | return (NULL); | |
1138 | } | |
1139 | ||
1140 | if (*cur >= '0' && *cur <= '9') | |
1141 | ch = (*cur - '0') << 4; | |
1142 | else | |
1143 | ch = (tolower(*cur) - 'a' + 10) << 4; | |
1144 | ||
1145 | if (isxdigit(cur[1] & 255)) | |
1146 | { | |
1147 | cur ++; | |
1148 | ||
1149 | if (*cur >= '0' && *cur <= '9') | |
1150 | ch |= *cur - '0'; | |
1151 | else | |
1152 | ch |= tolower(*cur) - 'a' + 10; | |
1153 | } | |
1154 | ||
1155 | *valptr++ = ch; | |
1156 | } | |
1157 | ||
1158 | if (*cur != '>') | |
1159 | { | |
1160 | *ptr = start; | |
1161 | return (NULL); | |
1162 | } | |
1163 | ||
1164 | cur ++; | |
1165 | } | |
1166 | break; | |
ef416fc2 | 1167 | |
b86bc4cf | 1168 | case '>' : /* End dictionary? */ |
1169 | if (cur[1] == '>') | |
1170 | { | |
1171 | obj.type = CUPS_PS_END_DICT; | |
1172 | cur += 2; | |
1173 | } | |
1174 | else | |
1175 | { | |
1176 | obj.type = CUPS_PS_OTHER; | |
1177 | obj.value.other[0] = *cur; | |
1178 | ||
1179 | cur ++; | |
1180 | } | |
1181 | break; | |
1182 | ||
1183 | case '{' : /* Start procedure */ | |
1184 | obj.type = CUPS_PS_START_PROC; | |
1185 | cur ++; | |
1186 | break; | |
1187 | ||
1188 | case '}' : /* End procedure */ | |
1189 | obj.type = CUPS_PS_END_PROC; | |
1190 | cur ++; | |
1191 | break; | |
1192 | ||
1193 | case '-' : /* Possible number */ | |
1194 | case '+' : | |
1195 | if (!isdigit(cur[1] & 255) && cur[1] != '.') | |
1196 | { | |
1197 | obj.type = CUPS_PS_OTHER; | |
1198 | obj.value.other[0] = *cur; | |
1199 | ||
1200 | cur ++; | |
1201 | break; | |
1202 | } | |
1203 | ||
1204 | case '0' : /* Number */ | |
1205 | case '1' : | |
1206 | case '2' : | |
1207 | case '3' : | |
1208 | case '4' : | |
1209 | case '5' : | |
1210 | case '6' : | |
1211 | case '7' : | |
1212 | case '8' : | |
1213 | case '9' : | |
1214 | case '.' : | |
1215 | obj.type = CUPS_PS_NUMBER; | |
1216 | ||
1217 | start = cur; | |
1218 | for (cur ++; *cur; cur ++) | |
1219 | if (!isdigit(*cur & 255)) | |
1220 | break; | |
1221 | ||
1222 | if (*cur == '#') | |
1223 | { | |
1224 | /* | |
1225 | * Integer with radix... | |
1226 | */ | |
1227 | ||
1228 | obj.value.number = strtol(cur + 1, &cur, atoi(start)); | |
1229 | break; | |
1230 | } | |
1231 | else if (strchr(".Ee()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1232 | { | |
1233 | /* | |
1234 | * Integer or real number... | |
1235 | */ | |
ef416fc2 | 1236 | |
b86bc4cf | 1237 | obj.value.number = _cupsStrScand(start, &cur, localeconv()); |
1238 | break; | |
1239 | } | |
1240 | else | |
1241 | cur = start; | |
ef416fc2 | 1242 | |
b86bc4cf | 1243 | default : /* Operator/variable name */ |
1244 | start = cur; | |
1245 | ||
1246 | if (*cur == '/') | |
1247 | { | |
1248 | obj.type = CUPS_PS_NAME; | |
1249 | valptr = obj.value.name; | |
1250 | valend = obj.value.name + sizeof(obj.value.name) - 1; | |
1251 | cur ++; | |
1252 | } | |
ef416fc2 | 1253 | else |
b86bc4cf | 1254 | { |
1255 | obj.type = CUPS_PS_OTHER; | |
1256 | valptr = obj.value.other; | |
1257 | valend = obj.value.other + sizeof(obj.value.other) - 1; | |
1258 | } | |
ef416fc2 | 1259 | |
b86bc4cf | 1260 | while (*cur) |
1261 | { | |
1262 | if (strchr("()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1263 | break; | |
1264 | else if (valptr < valend) | |
1265 | *valptr++ = *cur++; | |
1266 | else | |
1267 | { | |
1268 | *ptr = start; | |
1269 | return (NULL); | |
1270 | } | |
1271 | } | |
1272 | ||
1273 | if (obj.type == CUPS_PS_OTHER) | |
1274 | { | |
1275 | if (!strcmp(obj.value.other, "true")) | |
1276 | { | |
1277 | obj.type = CUPS_PS_BOOLEAN; | |
1278 | obj.value.boolean = 1; | |
1279 | } | |
1280 | else if (!strcmp(obj.value.other, "false")) | |
1281 | { | |
1282 | obj.type = CUPS_PS_BOOLEAN; | |
1283 | obj.value.boolean = 0; | |
1284 | } | |
1285 | else if (!strcmp(obj.value.other, "null")) | |
1286 | obj.type = CUPS_PS_NULL; | |
1287 | else if (!strcmp(obj.value.other, "cleartomark")) | |
1288 | obj.type = CUPS_PS_CLEARTOMARK; | |
1289 | else if (!strcmp(obj.value.other, "copy")) | |
1290 | obj.type = CUPS_PS_COPY; | |
1291 | else if (!strcmp(obj.value.other, "dup")) | |
1292 | obj.type = CUPS_PS_DUP; | |
1293 | else if (!strcmp(obj.value.other, "index")) | |
1294 | obj.type = CUPS_PS_INDEX; | |
1295 | else if (!strcmp(obj.value.other, "pop")) | |
1296 | obj.type = CUPS_PS_POP; | |
1297 | else if (!strcmp(obj.value.other, "roll")) | |
1298 | obj.type = CUPS_PS_ROLL; | |
1299 | else if (!strcmp(obj.value.other, "setpagedevice")) | |
1300 | obj.type = CUPS_PS_SETPAGEDEVICE; | |
1301 | else if (!strcmp(obj.value.other, "stopped")) | |
1302 | obj.type = CUPS_PS_STOPPED; | |
1303 | } | |
1304 | break; | |
1305 | } | |
1306 | ||
1307 | /* | |
1308 | * Save the current position in the string and return the new object... | |
1309 | */ | |
1310 | ||
1311 | *ptr = cur; | |
1312 | ||
1313 | return (push_stack(st, &obj)); | |
1314 | } | |
1315 | ||
1316 | ||
1317 | /* | |
1318 | * 'setpagedevice()' - Simulate the PostScript setpagedevice operator. | |
1319 | */ | |
1320 | ||
1321 | static int /* O - 0 on success, -1 on error */ | |
1322 | setpagedevice( | |
1323 | _cups_ps_stack_t *st, /* I - Stack */ | |
1324 | cups_page_header2_t *h, /* O - Page header */ | |
1325 | int *preferred_bits)/* O - Preferred bits per color */ | |
1326 | { | |
1327 | int i; /* Index into array */ | |
1328 | _cups_ps_obj_t *obj, /* Current object */ | |
1329 | *end; /* End of dictionary */ | |
1330 | const char *name; /* Attribute name */ | |
1331 | ||
1332 | ||
1333 | /* | |
1334 | * Make sure we have a dictionary on the stack... | |
1335 | */ | |
1336 | ||
1337 | if (st->num_objs == 0) | |
1338 | return (-1); | |
1339 | ||
1340 | obj = end = st->objs + st->num_objs - 1; | |
1341 | ||
1342 | if (obj->type != CUPS_PS_END_DICT) | |
1343 | return (-1); | |
1344 | ||
1345 | obj --; | |
1346 | ||
1347 | while (obj > st->objs) | |
1348 | { | |
1349 | if (obj->type == CUPS_PS_START_DICT) | |
1350 | break; | |
1351 | ||
1352 | obj --; | |
1353 | } | |
1354 | ||
1355 | if (obj < st->objs) | |
1356 | return (-1); | |
ef416fc2 | 1357 | |
b86bc4cf | 1358 | /* |
1359 | * Found the start of the dictionary, empty the stack to this point... | |
1360 | */ | |
1361 | ||
1362 | st->num_objs = obj - st->objs; | |
1363 | ||
1364 | /* | |
1365 | * Now pull /name and value pairs from the dictionary... | |
1366 | */ | |
1367 | ||
ae71f5de | 1368 | DEBUG_puts("setpagedevice: Dictionary:"); |
b86bc4cf | 1369 | |
1370 | for (obj ++; obj < end; obj ++) | |
1371 | { | |
ef416fc2 | 1372 | /* |
b86bc4cf | 1373 | * Grab the name... |
ef416fc2 | 1374 | */ |
1375 | ||
b86bc4cf | 1376 | if (obj->type != CUPS_PS_NAME) |
1377 | return (-1); | |
1378 | ||
1379 | name = obj->value.name; | |
1380 | obj ++; | |
1381 | ||
1382 | #ifdef DEBUG | |
ae71f5de | 1383 | DEBUG_printf(("setpagedevice: /%s ", name)); |
b86bc4cf | 1384 | DEBUG_object(obj); |
b86bc4cf | 1385 | #endif /* DEBUG */ |
1386 | ||
1387 | /* | |
1388 | * Then grab the value... | |
1389 | */ | |
1390 | ||
1391 | if (!strcmp(name, "MediaClass") && obj->type == CUPS_PS_STRING) | |
1392 | strlcpy(h->MediaClass, obj->value.string, sizeof(h->MediaClass)); | |
1393 | else if (!strcmp(name, "MediaColor") && obj->type == CUPS_PS_STRING) | |
1394 | strlcpy(h->MediaColor, obj->value.string, sizeof(h->MediaColor)); | |
1395 | else if (!strcmp(name, "MediaType") && obj->type == CUPS_PS_STRING) | |
1396 | strlcpy(h->MediaType, obj->value.string, sizeof(h->MediaType)); | |
1397 | else if (!strcmp(name, "OutputType") && obj->type == CUPS_PS_STRING) | |
1398 | strlcpy(h->OutputType, obj->value.string, sizeof(h->OutputType)); | |
1399 | else if (!strcmp(name, "AdvanceDistance") && obj->type == CUPS_PS_NUMBER) | |
1400 | h->AdvanceDistance = (unsigned)obj->value.number; | |
1401 | else if (!strcmp(name, "AdvanceMedia") && obj->type == CUPS_PS_NUMBER) | |
1402 | h->AdvanceMedia = (unsigned)obj->value.number; | |
1403 | else if (!strcmp(name, "Collate") && obj->type == CUPS_PS_BOOLEAN) | |
1404 | h->Collate = (unsigned)obj->value.boolean; | |
1405 | else if (!strcmp(name, "CutMedia") && obj->type == CUPS_PS_NUMBER) | |
1406 | h->CutMedia = (cups_cut_t)(unsigned)obj->value.number; | |
1407 | else if (!strcmp(name, "Duplex") && obj->type == CUPS_PS_BOOLEAN) | |
1408 | h->Duplex = (unsigned)obj->value.boolean; | |
1409 | else if (!strcmp(name, "HWResolution") && obj->type == CUPS_PS_START_ARRAY) | |
ef416fc2 | 1410 | { |
b86bc4cf | 1411 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && |
1412 | obj[3].type == CUPS_PS_END_ARRAY) | |
1413 | { | |
1414 | h->HWResolution[0] = (unsigned)obj[1].value.number; | |
1415 | h->HWResolution[1] = (unsigned)obj[2].value.number; | |
1416 | obj += 3; | |
1417 | } | |
1418 | else | |
ef416fc2 | 1419 | return (-1); |
1420 | } | |
b86bc4cf | 1421 | else if (!strcmp(name, "InsertSheet") && obj->type == CUPS_PS_BOOLEAN) |
1422 | h->InsertSheet = (unsigned)obj->value.boolean; | |
1423 | else if (!strcmp(name, "Jog") && obj->type == CUPS_PS_NUMBER) | |
1424 | h->Jog = (unsigned)obj->value.number; | |
1425 | else if (!strcmp(name, "LeadingEdge") && obj->type == CUPS_PS_NUMBER) | |
1426 | h->LeadingEdge = (unsigned)obj->value.number; | |
1427 | else if (!strcmp(name, "ManualFeed") && obj->type == CUPS_PS_BOOLEAN) | |
1428 | h->ManualFeed = (unsigned)obj->value.boolean; | |
09a101d6 | 1429 | else if ((!strcmp(name, "cupsMediaPosition") || |
b86bc4cf | 1430 | !strcmp(name, "MediaPosition")) && obj->type == CUPS_PS_NUMBER) |
09a101d6 | 1431 | { |
1432 | /* | |
1433 | * cupsMediaPosition is supported for backwards compatibility only. | |
1434 | * We added it back in the Ghostscript 5.50 days to work around a | |
1435 | * bug in Ghostscript WRT handling of MediaPosition and setpagedevice. | |
1436 | * | |
1437 | * All new development should set MediaPosition... | |
1438 | */ | |
1439 | ||
b86bc4cf | 1440 | h->MediaPosition = (unsigned)obj->value.number; |
09a101d6 | 1441 | } |
b86bc4cf | 1442 | else if (!strcmp(name, "MediaWeight") && obj->type == CUPS_PS_NUMBER) |
1443 | h->MediaWeight = (unsigned)obj->value.number; | |
1444 | else if (!strcmp(name, "MirrorPrint") && obj->type == CUPS_PS_BOOLEAN) | |
1445 | h->MirrorPrint = (unsigned)obj->value.boolean; | |
1446 | else if (!strcmp(name, "NegativePrint") && obj->type == CUPS_PS_BOOLEAN) | |
1447 | h->NegativePrint = (unsigned)obj->value.boolean; | |
1448 | else if (!strcmp(name, "NumCopies") && obj->type == CUPS_PS_NUMBER) | |
1449 | h->NumCopies = (unsigned)obj->value.number; | |
1450 | else if (!strcmp(name, "Orientation") && obj->type == CUPS_PS_NUMBER) | |
1451 | h->Orientation = (unsigned)obj->value.number; | |
1452 | else if (!strcmp(name, "OutputFaceUp") && obj->type == CUPS_PS_BOOLEAN) | |
1453 | h->OutputFaceUp = (unsigned)obj->value.boolean; | |
1454 | else if (!strcmp(name, "PageSize") && obj->type == CUPS_PS_START_ARRAY) | |
ef416fc2 | 1455 | { |
b86bc4cf | 1456 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && |
1457 | obj[3].type == CUPS_PS_END_ARRAY) | |
1458 | { | |
1459 | h->cupsPageSize[0] = obj[1].value.number; | |
1460 | h->cupsPageSize[1] = obj[2].value.number; | |
1461 | ||
1462 | h->PageSize[0] = (unsigned)obj[1].value.number; | |
1463 | h->PageSize[1] = (unsigned)obj[2].value.number; | |
1464 | ||
1465 | obj += 3; | |
1466 | } | |
1467 | else | |
fa73b229 | 1468 | return (-1); |
ef416fc2 | 1469 | } |
b86bc4cf | 1470 | else if (!strcmp(name, "Separations") && obj->type == CUPS_PS_BOOLEAN) |
1471 | h->Separations = (unsigned)obj->value.boolean; | |
1472 | else if (!strcmp(name, "TraySwitch") && obj->type == CUPS_PS_BOOLEAN) | |
1473 | h->TraySwitch = (unsigned)obj->value.boolean; | |
1474 | else if (!strcmp(name, "Tumble") && obj->type == CUPS_PS_BOOLEAN) | |
1475 | h->Tumble = (unsigned)obj->value.boolean; | |
1476 | else if (!strcmp(name, "cupsMediaType") && obj->type == CUPS_PS_NUMBER) | |
1477 | h->cupsMediaType = (unsigned)obj->value.number; | |
1478 | else if (!strcmp(name, "cupsBitsPerColor") && obj->type == CUPS_PS_NUMBER) | |
1479 | h->cupsBitsPerColor = (unsigned)obj->value.number; | |
1480 | else if (!strcmp(name, "cupsPreferredBitsPerColor") && | |
1481 | obj->type == CUPS_PS_NUMBER) | |
1482 | *preferred_bits = (int)obj->value.number; | |
1483 | else if (!strcmp(name, "cupsColorOrder") && obj->type == CUPS_PS_NUMBER) | |
1484 | h->cupsColorOrder = (cups_order_t)(unsigned)obj->value.number; | |
1485 | else if (!strcmp(name, "cupsColorSpace") && obj->type == CUPS_PS_NUMBER) | |
1486 | h->cupsColorSpace = (cups_cspace_t)(unsigned)obj->value.number; | |
1487 | else if (!strcmp(name, "cupsCompression") && obj->type == CUPS_PS_NUMBER) | |
1488 | h->cupsCompression = (unsigned)obj->value.number; | |
1489 | else if (!strcmp(name, "cupsRowCount") && obj->type == CUPS_PS_NUMBER) | |
1490 | h->cupsRowCount = (unsigned)obj->value.number; | |
1491 | else if (!strcmp(name, "cupsRowFeed") && obj->type == CUPS_PS_NUMBER) | |
1492 | h->cupsRowFeed = (unsigned)obj->value.number; | |
1493 | else if (!strcmp(name, "cupsRowStep") && obj->type == CUPS_PS_NUMBER) | |
1494 | h->cupsRowStep = (unsigned)obj->value.number; | |
923edb68 | 1495 | else if (!strcmp(name, "cupsBorderlessScalingFactor") && |
b86bc4cf | 1496 | obj->type == CUPS_PS_NUMBER) |
1497 | h->cupsBorderlessScalingFactor = obj->value.number; | |
1498 | else if (!strncmp(name, "cupsInteger", 11) && obj->type == CUPS_PS_NUMBER) | |
ef416fc2 | 1499 | { |
b86bc4cf | 1500 | if ((i = atoi(name + 11)) < 0 || i > 15) |
ef416fc2 | 1501 | return (-1); |
1502 | ||
b86bc4cf | 1503 | h->cupsInteger[i] = (unsigned)obj->value.number; |
ef416fc2 | 1504 | } |
b86bc4cf | 1505 | else if (!strncmp(name, "cupsReal", 8) && obj->type == CUPS_PS_NUMBER) |
ef416fc2 | 1506 | { |
b86bc4cf | 1507 | if ((i = atoi(name + 8)) < 0 || i > 15) |
ef416fc2 | 1508 | return (-1); |
1509 | ||
b86bc4cf | 1510 | h->cupsReal[i] = obj->value.number; |
ef416fc2 | 1511 | } |
b86bc4cf | 1512 | else if (!strncmp(name, "cupsString", 10) && obj->type == CUPS_PS_STRING) |
ef416fc2 | 1513 | { |
b86bc4cf | 1514 | if ((i = atoi(name + 10)) < 0 || i > 15) |
ef416fc2 | 1515 | return (-1); |
1516 | ||
b86bc4cf | 1517 | strlcpy(h->cupsString[i], obj->value.string, sizeof(h->cupsString[i])); |
ef416fc2 | 1518 | } |
b86bc4cf | 1519 | else if (!strcmp(name, "cupsMarkerType") && obj->type == CUPS_PS_STRING) |
1520 | strlcpy(h->cupsMarkerType, obj->value.string, sizeof(h->cupsMarkerType)); | |
1521 | else if (!strcmp(name, "cupsPageSizeName") && obj->type == CUPS_PS_STRING) | |
1522 | strlcpy(h->cupsPageSizeName, obj->value.string, | |
1523 | sizeof(h->cupsPageSizeName)); | |
1524 | else if (!strcmp(name, "cupsRenderingIntent") && | |
1525 | obj->type == CUPS_PS_STRING) | |
1526 | strlcpy(h->cupsRenderingIntent, obj->value.string, | |
1527 | sizeof(h->cupsRenderingIntent)); | |
1528 | else | |
ef416fc2 | 1529 | { |
b86bc4cf | 1530 | /* |
1531 | * Ignore unknown name+value... | |
1532 | */ | |
1533 | ||
1534 | DEBUG_printf((" Unknown name (\"%s\") or value...\n", name)); | |
1535 | ||
1536 | while (obj[1].type != CUPS_PS_NAME && obj < end) | |
1537 | obj ++; | |
ef416fc2 | 1538 | } |
ef416fc2 | 1539 | } |
1540 | ||
ef416fc2 | 1541 | return (0); |
1542 | } | |
1543 | ||
1544 | ||
b86bc4cf | 1545 | #ifdef DEBUG |
1546 | /* | |
1547 | * 'DEBUG_object()' - Print an object's value... | |
1548 | */ | |
1549 | ||
1550 | static void | |
1551 | DEBUG_object(_cups_ps_obj_t *obj) /* I - Object to print */ | |
1552 | { | |
1553 | switch (obj->type) | |
1554 | { | |
1555 | case CUPS_PS_NAME : | |
ae71f5de | 1556 | DEBUG_printf(("/%s\n", obj->value.name)); |
b86bc4cf | 1557 | break; |
1558 | ||
1559 | case CUPS_PS_NUMBER : | |
ae71f5de | 1560 | DEBUG_printf(("%g\n", obj->value.number)); |
b86bc4cf | 1561 | break; |
1562 | ||
1563 | case CUPS_PS_STRING : | |
ae71f5de | 1564 | DEBUG_printf(("(%s)\n", obj->value.string)); |
b86bc4cf | 1565 | break; |
1566 | ||
1567 | case CUPS_PS_BOOLEAN : | |
1568 | if (obj->value.boolean) | |
ae71f5de | 1569 | DEBUG_puts("true"); |
b86bc4cf | 1570 | else |
ae71f5de | 1571 | DEBUG_puts("false"); |
b86bc4cf | 1572 | break; |
1573 | ||
1574 | case CUPS_PS_NULL : | |
ae71f5de | 1575 | DEBUG_puts("null"); |
b86bc4cf | 1576 | break; |
1577 | ||
1578 | case CUPS_PS_START_ARRAY : | |
ae71f5de | 1579 | DEBUG_puts("["); |
b86bc4cf | 1580 | break; |
1581 | ||
1582 | case CUPS_PS_END_ARRAY : | |
ae71f5de | 1583 | DEBUG_puts("]"); |
b86bc4cf | 1584 | break; |
1585 | ||
1586 | case CUPS_PS_START_DICT : | |
ae71f5de | 1587 | DEBUG_puts("<<"); |
b86bc4cf | 1588 | break; |
1589 | ||
1590 | case CUPS_PS_END_DICT : | |
ae71f5de | 1591 | DEBUG_puts(">>"); |
b86bc4cf | 1592 | break; |
1593 | ||
1594 | case CUPS_PS_START_PROC : | |
ae71f5de | 1595 | DEBUG_puts("{"); |
b86bc4cf | 1596 | break; |
1597 | ||
1598 | case CUPS_PS_END_PROC : | |
ae71f5de | 1599 | DEBUG_puts("}"); |
b86bc4cf | 1600 | break; |
1601 | ||
1602 | case CUPS_PS_CLEARTOMARK : | |
ae71f5de | 1603 | DEBUG_puts("--cleartomark--"); |
b86bc4cf | 1604 | break; |
1605 | ||
1606 | case CUPS_PS_COPY : | |
ae71f5de | 1607 | DEBUG_puts("--copy--"); |
b86bc4cf | 1608 | break; |
1609 | ||
1610 | case CUPS_PS_DUP : | |
ae71f5de | 1611 | DEBUG_puts("--dup--"); |
b86bc4cf | 1612 | break; |
1613 | ||
1614 | case CUPS_PS_INDEX : | |
ae71f5de | 1615 | DEBUG_puts("--index--"); |
b86bc4cf | 1616 | break; |
1617 | ||
1618 | case CUPS_PS_POP : | |
ae71f5de | 1619 | DEBUG_puts("--pop--"); |
b86bc4cf | 1620 | break; |
1621 | ||
1622 | case CUPS_PS_ROLL : | |
ae71f5de | 1623 | DEBUG_puts("--roll--"); |
b86bc4cf | 1624 | break; |
1625 | ||
1626 | case CUPS_PS_SETPAGEDEVICE : | |
ae71f5de | 1627 | DEBUG_puts("--setpagedevice--"); |
b86bc4cf | 1628 | break; |
1629 | ||
1630 | case CUPS_PS_STOPPED : | |
ae71f5de | 1631 | DEBUG_puts("--stopped--"); |
b86bc4cf | 1632 | break; |
1633 | ||
1634 | case CUPS_PS_OTHER : | |
ae71f5de | 1635 | DEBUG_printf(("--%s--\n", obj->value.other)); |
b86bc4cf | 1636 | break; |
1637 | } | |
1638 | } | |
1639 | ||
1640 | ||
1641 | /* | |
1642 | * 'DEBUG_stack()' - Print a stack... | |
1643 | */ | |
1644 | ||
1645 | static void | |
1646 | DEBUG_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
1647 | { | |
1648 | int c; /* Looping var */ | |
1649 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
1650 | ||
1651 | ||
1652 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
b86bc4cf | 1653 | DEBUG_object(obj); |
b86bc4cf | 1654 | } |
1655 | #endif /* DEBUG */ | |
1656 | ||
1657 | ||
ef416fc2 | 1658 | /* |
b19ccc9e | 1659 | * End of "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $". |
ef416fc2 | 1660 | */ |