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ef416fc2 | 1 | /* |
b19ccc9e | 2 | * "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $" |
ef416fc2 | 3 | * |
71e16022 | 4 | * PPD command interpreter for CUPS. |
ef416fc2 | 5 | * |
71e16022 | 6 | * Copyright 2007-2010 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 | ||
b86bc4cf | 43 | #include "image-private.h" |
ef416fc2 | 44 | |
45 | ||
46 | /* | |
b86bc4cf | 47 | * Stack values for the PostScript mini-interpreter... |
ef416fc2 | 48 | */ |
49 | ||
b86bc4cf | 50 | typedef enum |
51 | { | |
52 | CUPS_PS_NAME, | |
53 | CUPS_PS_NUMBER, | |
54 | CUPS_PS_STRING, | |
55 | CUPS_PS_BOOLEAN, | |
56 | CUPS_PS_NULL, | |
57 | CUPS_PS_START_ARRAY, | |
58 | CUPS_PS_END_ARRAY, | |
59 | CUPS_PS_START_DICT, | |
60 | CUPS_PS_END_DICT, | |
61 | CUPS_PS_START_PROC, | |
62 | CUPS_PS_END_PROC, | |
63 | CUPS_PS_CLEARTOMARK, | |
64 | CUPS_PS_COPY, | |
65 | CUPS_PS_DUP, | |
66 | CUPS_PS_INDEX, | |
67 | CUPS_PS_POP, | |
68 | CUPS_PS_ROLL, | |
69 | CUPS_PS_SETPAGEDEVICE, | |
70 | CUPS_PS_STOPPED, | |
71 | CUPS_PS_OTHER | |
72 | } _cups_ps_type_t; | |
73 | ||
74 | typedef struct | |
75 | { | |
76 | _cups_ps_type_t type; /* Object type */ | |
77 | union | |
78 | { | |
79 | int boolean; /* Boolean value */ | |
80 | char name[64]; /* Name value */ | |
81 | double number; /* Number value */ | |
82 | char other[64]; /* Other operator */ | |
83 | char string[64]; /* Sring value */ | |
84 | } value; /* Value */ | |
85 | } _cups_ps_obj_t; | |
86 | ||
87 | typedef struct | |
88 | { | |
89 | int num_objs, /* Number of objects on stack */ | |
90 | alloc_objs; /* Number of allocated objects */ | |
91 | _cups_ps_obj_t *objs; /* Objects in stack */ | |
92 | } _cups_ps_stack_t; | |
ef416fc2 | 93 | |
94 | ||
95 | /* | |
96 | * Local functions... | |
97 | */ | |
98 | ||
b86bc4cf | 99 | static int cleartomark_stack(_cups_ps_stack_t *st); |
100 | static int copy_stack(_cups_ps_stack_t *st, int count); | |
101 | static void delete_stack(_cups_ps_stack_t *st); | |
f7deaa1a | 102 | static void error_object(_cups_ps_obj_t *obj); |
103 | static void error_stack(_cups_ps_stack_t *st, const char *title); | |
b86bc4cf | 104 | static _cups_ps_obj_t *index_stack(_cups_ps_stack_t *st, int n); |
105 | static _cups_ps_stack_t *new_stack(void); | |
106 | static _cups_ps_obj_t *pop_stack(_cups_ps_stack_t *st); | |
107 | static _cups_ps_obj_t *push_stack(_cups_ps_stack_t *st, | |
108 | _cups_ps_obj_t *obj); | |
109 | static int roll_stack(_cups_ps_stack_t *st, int c, int s); | |
110 | static _cups_ps_obj_t *scan_ps(_cups_ps_stack_t *st, char **ptr); | |
111 | static int setpagedevice(_cups_ps_stack_t *st, | |
112 | cups_page_header2_t *h, | |
113 | int *preferred_bits); | |
114 | #ifdef DEBUG | |
115 | static void DEBUG_object(_cups_ps_obj_t *obj); | |
116 | static void DEBUG_stack(_cups_ps_stack_t *st); | |
117 | #endif /* DEBUG */ | |
ef416fc2 | 118 | |
119 | ||
120 | /* | |
121 | * 'cupsRasterInterpretPPD()' - Interpret PPD commands to create a page header. | |
122 | * | |
db0bd74a MS |
123 | * This function is used by raster image processing (RIP) filters like |
124 | * cgpdftoraster and imagetoraster when writing CUPS raster data for a page. | |
125 | * It is not used by raster printer driver filters which only read CUPS | |
126 | * raster data. | |
127 | * | |
128 | * | |
129 | * @code cupsRasterInterpretPPD@ does not mark the options in the PPD using | |
130 | * the "num_options" and "options" arguments. Instead, mark the options with | |
131 | * @code cupsMarkOptions@ and @code ppdMarkOption@ prior to calling it - | |
132 | * this allows for per-page options without manipulating the options array. | |
923edb68 | 133 | * |
a74454a7 | 134 | * The "func" argument specifies an optional callback function that is |
135 | * called prior to the computation of the final raster data. The function | |
5a738aea | 136 | * can make changes to the @link cups_page_header2_t@ data as needed to use a |
a74454a7 | 137 | * supported raster format and then returns 0 on success and -1 if the |
138 | * requested attributes cannot be supported. | |
139 | * | |
db0bd74a | 140 | * |
5a738aea MS |
141 | * @code cupsRasterInterpretPPD@ supports a subset of the PostScript language. |
142 | * Currently only the @code [@, @code ]@, @code <<@, @code >>@, @code {@, | |
143 | * @code }@, @code cleartomark@, @code copy@, @code dup@, @code index@, | |
144 | * @code pop@, @code roll@, @code setpagedevice@, and @code stopped@ operators | |
145 | * are supported. | |
b86bc4cf | 146 | * |
db0bd74a | 147 | * @since CUPS 1.2/Mac OS X 10.5@ |
ef416fc2 | 148 | */ |
149 | ||
150 | int /* O - 0 on success, -1 on failure */ | |
151 | cupsRasterInterpretPPD( | |
db0bd74a | 152 | cups_page_header2_t *h, /* O - Page header to create */ |
923edb68 | 153 | ppd_file_t *ppd, /* I - PPD file */ |
154 | int num_options, /* I - Number of options */ | |
a74454a7 | 155 | cups_option_t *options, /* I - Options */ |
db0bd74a | 156 | cups_interpret_cb_t func) /* I - Optional page header callback (@code NULL@ for none) */ |
ef416fc2 | 157 | { |
ef416fc2 | 158 | int status; /* Cummulative status */ |
b86bc4cf | 159 | char *code; /* Code to run */ |
923edb68 | 160 | const char *val; /* Option value */ |
ef416fc2 | 161 | ppd_size_t *size; /* Current size */ |
162 | float left, /* Left position */ | |
163 | bottom, /* Bottom position */ | |
164 | right, /* Right position */ | |
165 | top; /* Top position */ | |
a74454a7 | 166 | int preferred_bits; /* Preferred bits per color */ |
ef416fc2 | 167 | |
168 | ||
169 | /* | |
170 | * Range check input... | |
171 | */ | |
172 | ||
f7deaa1a | 173 | _cupsRasterClearError(); |
174 | ||
ef416fc2 | 175 | if (!h) |
f7deaa1a | 176 | { |
177 | _cupsRasterAddError("Page header cannot be NULL!\n"); | |
ef416fc2 | 178 | return (-1); |
f7deaa1a | 179 | } |
ef416fc2 | 180 | |
181 | /* | |
182 | * Reset the page header to the defaults... | |
183 | */ | |
184 | ||
185 | memset(h, 0, sizeof(cups_page_header2_t)); | |
186 | ||
923edb68 | 187 | h->NumCopies = 1; |
188 | h->PageSize[0] = 612; | |
189 | h->PageSize[1] = 792; | |
190 | h->HWResolution[0] = 100; | |
191 | h->HWResolution[1] = 100; | |
192 | h->cupsBitsPerColor = 1; | |
193 | h->cupsColorOrder = CUPS_ORDER_CHUNKED; | |
194 | h->cupsColorSpace = CUPS_CSPACE_K; | |
195 | h->cupsBorderlessScalingFactor = 1.0f; | |
196 | h->cupsPageSize[0] = 612.0f; | |
197 | h->cupsPageSize[1] = 792.0f; | |
198 | h->cupsImagingBBox[0] = 0.0f; | |
199 | h->cupsImagingBBox[1] = 0.0f; | |
200 | h->cupsImagingBBox[2] = 612.0f; | |
201 | h->cupsImagingBBox[3] = 792.0f; | |
fa73b229 | 202 | |
203 | strcpy(h->cupsPageSizeName, "Letter"); | |
ef416fc2 | 204 | |
e38f5e9c MS |
205 | #ifdef __APPLE__ |
206 | /* | |
207 | * cupsInteger0 is also used for the total page count on Mac OS X; set an | |
208 | * uncommon default value so we can tell if the driver is using cupsInteger0. | |
209 | */ | |
210 | ||
211 | h->cupsInteger[0] = 0x80000000; | |
212 | #endif /* __APPLE__ */ | |
213 | ||
ef416fc2 | 214 | /* |
215 | * Apply patches and options to the page header... | |
216 | */ | |
217 | ||
a74454a7 | 218 | status = 0; |
219 | preferred_bits = 0; | |
ef416fc2 | 220 | |
221 | if (ppd) | |
222 | { | |
223 | /* | |
224 | * Apply any patch code (used to override the defaults...) | |
225 | */ | |
226 | ||
227 | if (ppd->patches) | |
b86bc4cf | 228 | status |= _cupsRasterExecPS(h, &preferred_bits, ppd->patches); |
ef416fc2 | 229 | |
230 | /* | |
231 | * Then apply printer options in the proper order... | |
232 | */ | |
233 | ||
b86bc4cf | 234 | if ((code = ppdEmitString(ppd, PPD_ORDER_DOCUMENT, 0.0)) != NULL) |
ef416fc2 | 235 | { |
b86bc4cf | 236 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
237 | free(code); | |
ef416fc2 | 238 | } |
239 | ||
b86bc4cf | 240 | if ((code = ppdEmitString(ppd, PPD_ORDER_ANY, 0.0)) != NULL) |
ef416fc2 | 241 | { |
b86bc4cf | 242 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
243 | free(code); | |
ef416fc2 | 244 | } |
245 | ||
b86bc4cf | 246 | if ((code = ppdEmitString(ppd, PPD_ORDER_PROLOG, 0.0)) != NULL) |
ef416fc2 | 247 | { |
b86bc4cf | 248 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
249 | free(code); | |
ef416fc2 | 250 | } |
251 | ||
b86bc4cf | 252 | if ((code = ppdEmitString(ppd, PPD_ORDER_PAGE, 0.0)) != NULL) |
ef416fc2 | 253 | { |
b86bc4cf | 254 | status |= _cupsRasterExecPS(h, &preferred_bits, code); |
255 | free(code); | |
ef416fc2 | 256 | } |
257 | } | |
258 | ||
923edb68 | 259 | /* |
260 | * Allow option override for page scaling... | |
261 | */ | |
262 | ||
263 | if ((val = cupsGetOption("cupsBorderlessScalingFactor", num_options, | |
264 | options)) != NULL) | |
265 | { | |
c8fef167 | 266 | double sc = atof(val); /* Scale factor */ |
923edb68 | 267 | |
06d4e77b | 268 | if (sc >= 0.1 && sc <= 2.0) |
c8fef167 | 269 | h->cupsBorderlessScalingFactor = (float)sc; |
923edb68 | 270 | } |
271 | ||
ef416fc2 | 272 | /* |
273 | * Get the margins for the current size... | |
274 | */ | |
275 | ||
276 | if ((size = ppdPageSize(ppd, NULL)) != NULL) | |
277 | { | |
278 | /* | |
279 | * Use the margins from the PPD file... | |
280 | */ | |
281 | ||
282 | left = size->left; | |
283 | bottom = size->bottom; | |
284 | right = size->right; | |
285 | top = size->top; | |
fa73b229 | 286 | |
287 | strlcpy(h->cupsPageSizeName, size->name, sizeof(h->cupsPageSizeName)); | |
07725fee | 288 | |
289 | h->cupsPageSize[0] = size->width; | |
290 | h->cupsPageSize[1] = size->length; | |
ef416fc2 | 291 | } |
292 | else | |
293 | { | |
294 | /* | |
295 | * Use the default margins... | |
296 | */ | |
297 | ||
298 | left = 0.0f; | |
299 | bottom = 0.0f; | |
300 | right = 612.0f; | |
301 | top = 792.0f; | |
302 | } | |
303 | ||
c8fef167 MS |
304 | h->PageSize[0] = (unsigned)(h->cupsPageSize[0] * |
305 | h->cupsBorderlessScalingFactor); | |
306 | h->PageSize[1] = (unsigned)(h->cupsPageSize[1] * | |
307 | h->cupsBorderlessScalingFactor); | |
308 | h->Margins[0] = (unsigned)(left * | |
309 | h->cupsBorderlessScalingFactor); | |
310 | h->Margins[1] = (unsigned)(bottom * | |
311 | h->cupsBorderlessScalingFactor); | |
312 | h->ImagingBoundingBox[0] = (unsigned)(left * | |
313 | h->cupsBorderlessScalingFactor); | |
314 | h->ImagingBoundingBox[1] = (unsigned)(bottom * | |
315 | h->cupsBorderlessScalingFactor); | |
316 | h->ImagingBoundingBox[2] = (unsigned)(right * | |
317 | h->cupsBorderlessScalingFactor); | |
318 | h->ImagingBoundingBox[3] = (unsigned)(top * | |
319 | h->cupsBorderlessScalingFactor); | |
320 | h->cupsImagingBBox[0] = (float)left; | |
321 | h->cupsImagingBBox[1] = (float)bottom; | |
322 | h->cupsImagingBBox[2] = (float)right; | |
323 | h->cupsImagingBBox[3] = (float)top; | |
ef416fc2 | 324 | |
a74454a7 | 325 | /* |
326 | * Use the callback to validate the page header... | |
327 | */ | |
328 | ||
329 | if (func && (*func)(h, preferred_bits)) | |
f7deaa1a | 330 | { |
331 | _cupsRasterAddError("Page header callback returned error.\n"); | |
a74454a7 | 332 | return (-1); |
f7deaa1a | 333 | } |
a74454a7 | 334 | |
a9252913 | 335 | /* |
336 | * Check parameters... | |
337 | */ | |
338 | ||
339 | if (!h->HWResolution[0] || !h->HWResolution[1] || | |
340 | !h->PageSize[0] || !h->PageSize[1] || | |
341 | (h->cupsBitsPerColor != 1 && h->cupsBitsPerColor != 2 && | |
342 | h->cupsBitsPerColor != 4 && h->cupsBitsPerColor != 8 && | |
343 | h->cupsBitsPerColor != 16) || | |
06d4e77b | 344 | h->cupsBorderlessScalingFactor < 0.1 || |
b86bc4cf | 345 | h->cupsBorderlessScalingFactor > 2.0) |
f7deaa1a | 346 | { |
347 | _cupsRasterAddError("Page header uses unsupported values.\n"); | |
a9252913 | 348 | return (-1); |
f7deaa1a | 349 | } |
a9252913 | 350 | |
ef416fc2 | 351 | /* |
352 | * Compute the bitmap parameters... | |
353 | */ | |
354 | ||
923edb68 | 355 | h->cupsWidth = (int)((right - left) * h->cupsBorderlessScalingFactor * |
fa73b229 | 356 | h->HWResolution[0] / 72.0f + 0.5f); |
923edb68 | 357 | h->cupsHeight = (int)((top - bottom) * h->cupsBorderlessScalingFactor * |
fa73b229 | 358 | h->HWResolution[1] / 72.0f + 0.5f); |
ef416fc2 | 359 | |
360 | switch (h->cupsColorSpace) | |
361 | { | |
362 | case CUPS_CSPACE_W : | |
363 | case CUPS_CSPACE_K : | |
364 | case CUPS_CSPACE_WHITE : | |
365 | case CUPS_CSPACE_GOLD : | |
366 | case CUPS_CSPACE_SILVER : | |
367 | h->cupsNumColors = 1; | |
368 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
369 | break; | |
370 | ||
371 | default : | |
372 | /* | |
373 | * Ensure that colorimetric colorspaces use at least 8 bits per | |
374 | * component... | |
375 | */ | |
376 | ||
377 | if (h->cupsColorSpace >= CUPS_CSPACE_CIEXYZ && | |
378 | h->cupsBitsPerColor < 8) | |
379 | h->cupsBitsPerColor = 8; | |
380 | ||
381 | /* | |
382 | * Figure out the number of bits per pixel... | |
383 | */ | |
384 | ||
385 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
386 | { | |
387 | if (h->cupsBitsPerColor >= 8) | |
388 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 3; | |
389 | else | |
390 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
391 | } | |
392 | else | |
393 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
394 | ||
395 | h->cupsNumColors = 3; | |
396 | break; | |
397 | ||
398 | case CUPS_CSPACE_KCMYcm : | |
f301802f | 399 | if (h->cupsBitsPerColor == 1) |
ef416fc2 | 400 | { |
401 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
402 | h->cupsBitsPerPixel = 8; | |
403 | else | |
404 | h->cupsBitsPerPixel = 1; | |
405 | ||
406 | h->cupsNumColors = 6; | |
407 | break; | |
408 | } | |
409 | ||
410 | /* | |
411 | * Fall through to CMYK code... | |
412 | */ | |
413 | ||
414 | case CUPS_CSPACE_RGBA : | |
a74454a7 | 415 | case CUPS_CSPACE_RGBW : |
ef416fc2 | 416 | case CUPS_CSPACE_CMYK : |
417 | case CUPS_CSPACE_YMCK : | |
418 | case CUPS_CSPACE_KCMY : | |
419 | case CUPS_CSPACE_GMCK : | |
420 | case CUPS_CSPACE_GMCS : | |
421 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
422 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
423 | else | |
424 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
425 | ||
426 | h->cupsNumColors = 4; | |
427 | break; | |
428 | } | |
429 | ||
430 | h->cupsBytesPerLine = (h->cupsBitsPerPixel * h->cupsWidth + 7) / 8; | |
431 | ||
432 | if (h->cupsColorOrder == CUPS_ORDER_BANDED) | |
433 | h->cupsBytesPerLine *= h->cupsNumColors; | |
434 | ||
435 | return (status); | |
436 | } | |
437 | ||
438 | ||
439 | /* | |
b86bc4cf | 440 | * '_cupsRasterExecPS()' - Execute PostScript code to initialize a page header. |
ef416fc2 | 441 | */ |
442 | ||
b86bc4cf | 443 | int /* O - 0 on success, -1 on error */ |
444 | _cupsRasterExecPS( | |
a74454a7 | 445 | cups_page_header2_t *h, /* O - Page header */ |
446 | int *preferred_bits,/* O - Preferred bits per color */ | |
b86bc4cf | 447 | const char *code) /* I - PS code to execute */ |
ef416fc2 | 448 | { |
b86bc4cf | 449 | _cups_ps_stack_t *st; /* PostScript value stack */ |
450 | _cups_ps_obj_t *obj; /* Object from top of stack */ | |
451 | char *codecopy, /* Copy of code */ | |
452 | *codeptr; /* Pointer into copy of code */ | |
453 | ||
ef416fc2 | 454 | |
b86bc4cf | 455 | DEBUG_printf(("_cupsRasterExecPS(h=%p, preferred_bits=%p, code=\"%s\")\n", |
456 | h, preferred_bits, code ? code : "(null)")); | |
ef416fc2 | 457 | |
458 | /* | |
b86bc4cf | 459 | * Copy the PostScript code and create a stack... |
ef416fc2 | 460 | */ |
461 | ||
b86bc4cf | 462 | if ((codecopy = strdup(code)) == NULL) |
f7deaa1a | 463 | { |
464 | _cupsRasterAddError("Unable to duplicate code string.\n"); | |
b86bc4cf | 465 | return (-1); |
f7deaa1a | 466 | } |
b86bc4cf | 467 | |
468 | if ((st = new_stack()) == NULL) | |
469 | { | |
f7deaa1a | 470 | _cupsRasterAddError("Unable to create stack.\n"); |
b86bc4cf | 471 | free(codecopy); |
ef416fc2 | 472 | return (-1); |
b86bc4cf | 473 | } |
ef416fc2 | 474 | |
475 | /* | |
b86bc4cf | 476 | * Parse the PS string until we run out of data... |
ef416fc2 | 477 | */ |
478 | ||
b86bc4cf | 479 | codeptr = codecopy; |
480 | ||
481 | while ((obj = scan_ps(st, &codeptr)) != NULL) | |
ef416fc2 | 482 | { |
b86bc4cf | 483 | #ifdef DEBUG |
ae71f5de | 484 | DEBUG_printf(("_cupsRasterExecPS: Stack (%d objects)\n", st->num_objs)); |
b86bc4cf | 485 | DEBUG_object(obj); |
b86bc4cf | 486 | #endif /* DEBUG */ |
487 | ||
488 | switch (obj->type) | |
489 | { | |
490 | default : | |
491 | /* Do nothing for regular values */ | |
492 | break; | |
493 | ||
494 | case CUPS_PS_CLEARTOMARK : | |
495 | pop_stack(st); | |
496 | ||
f7deaa1a | 497 | if (cleartomark_stack(st)) |
498 | _cupsRasterAddError("cleartomark: Stack underflow!\n"); | |
b86bc4cf | 499 | |
500 | #ifdef DEBUG | |
ae71f5de | 501 | DEBUG_puts(" dup: "); |
b86bc4cf | 502 | DEBUG_stack(st); |
503 | #endif /* DEBUG */ | |
504 | break; | |
505 | ||
506 | case CUPS_PS_COPY : | |
507 | pop_stack(st); | |
508 | if ((obj = pop_stack(st)) != NULL) | |
509 | { | |
510 | copy_stack(st, (int)obj->value.number); | |
511 | ||
512 | #ifdef DEBUG | |
ae71f5de | 513 | DEBUG_puts("_cupsRasterExecPS: copy"); |
b86bc4cf | 514 | DEBUG_stack(st); |
515 | #endif /* DEBUG */ | |
516 | } | |
517 | break; | |
518 | ||
519 | case CUPS_PS_DUP : | |
520 | pop_stack(st); | |
521 | copy_stack(st, 1); | |
522 | ||
523 | #ifdef DEBUG | |
ae71f5de | 524 | DEBUG_puts("_cupsRasterExecPS: dup"); |
b86bc4cf | 525 | DEBUG_stack(st); |
526 | #endif /* DEBUG */ | |
527 | break; | |
528 | ||
529 | case CUPS_PS_INDEX : | |
530 | pop_stack(st); | |
531 | if ((obj = pop_stack(st)) != NULL) | |
532 | { | |
533 | index_stack(st, (int)obj->value.number); | |
534 | ||
535 | #ifdef DEBUG | |
ae71f5de | 536 | DEBUG_puts("_cupsRasterExecPS: index"); |
b86bc4cf | 537 | DEBUG_stack(st); |
538 | #endif /* DEBUG */ | |
539 | } | |
540 | break; | |
541 | ||
542 | case CUPS_PS_POP : | |
543 | pop_stack(st); | |
544 | pop_stack(st); | |
545 | ||
546 | #ifdef DEBUG | |
ae71f5de | 547 | DEBUG_puts("_cupsRasterExecPS: pop"); |
b86bc4cf | 548 | DEBUG_stack(st); |
549 | #endif /* DEBUG */ | |
550 | break; | |
551 | ||
552 | case CUPS_PS_ROLL : | |
553 | pop_stack(st); | |
554 | if ((obj = pop_stack(st)) != NULL) | |
555 | { | |
556 | int c; /* Count */ | |
ef416fc2 | 557 | |
ef416fc2 | 558 | |
b86bc4cf | 559 | c = (int)obj->value.number; |
560 | ||
561 | if ((obj = pop_stack(st)) != NULL) | |
562 | { | |
563 | roll_stack(st, (int)obj->value.number, c); | |
564 | ||
565 | #ifdef DEBUG | |
ae71f5de | 566 | DEBUG_puts("_cupsRasterExecPS: roll"); |
b86bc4cf | 567 | DEBUG_stack(st); |
568 | #endif /* DEBUG */ | |
569 | } | |
570 | } | |
571 | break; | |
572 | ||
573 | case CUPS_PS_SETPAGEDEVICE : | |
574 | pop_stack(st); | |
575 | setpagedevice(st, h, preferred_bits); | |
576 | ||
577 | #ifdef DEBUG | |
ae71f5de | 578 | DEBUG_puts("_cupsRasterExecPS: setpagedevice"); |
b86bc4cf | 579 | DEBUG_stack(st); |
580 | #endif /* DEBUG */ | |
581 | break; | |
582 | ||
583 | case CUPS_PS_START_PROC : | |
584 | case CUPS_PS_END_PROC : | |
585 | case CUPS_PS_STOPPED : | |
586 | pop_stack(st); | |
587 | break; | |
588 | ||
589 | case CUPS_PS_OTHER : | |
f7deaa1a | 590 | _cupsRasterAddError("Unknown operator \"%s\"!\n", obj->value.other); |
ae71f5de MS |
591 | DEBUG_printf(("_cupsRasterExecPS: Unknown operator \"%s\"!\n", |
592 | obj->value.other)); | |
b86bc4cf | 593 | break; |
594 | } | |
595 | ||
91c84a35 | 596 | if (obj && obj->type == CUPS_PS_OTHER) |
ef416fc2 | 597 | break; |
b86bc4cf | 598 | } |
599 | ||
600 | /* | |
601 | * Cleanup... | |
602 | */ | |
603 | ||
604 | free(codecopy); | |
605 | ||
606 | if (st->num_objs > 0) | |
607 | { | |
f7deaa1a | 608 | error_stack(st, "Stack not empty:"); |
609 | ||
b86bc4cf | 610 | #ifdef DEBUG |
ae71f5de | 611 | DEBUG_puts("_cupsRasterExecPS: Stack not empty:"); |
b86bc4cf | 612 | DEBUG_stack(st); |
613 | #endif /* DEBUG */ | |
ef416fc2 | 614 | |
b86bc4cf | 615 | delete_stack(st); |
616 | ||
617 | return (-1); | |
618 | } | |
619 | ||
620 | delete_stack(st); | |
621 | ||
622 | /* | |
623 | * Return success... | |
624 | */ | |
625 | ||
626 | return (0); | |
627 | } | |
628 | ||
629 | ||
630 | /* | |
631 | * 'cleartomark_stack()' - Clear to the last mark ([) on the stack. | |
632 | */ | |
633 | ||
634 | static int /* O - 0 on success, -1 on error */ | |
635 | cleartomark_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
636 | { | |
637 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
638 | ||
639 | ||
640 | while ((obj = pop_stack(st)) != NULL) | |
641 | if (obj->type == CUPS_PS_START_ARRAY) | |
642 | break; | |
643 | ||
644 | return (obj ? 0 : -1); | |
645 | } | |
646 | ||
647 | ||
648 | /* | |
649 | * 'copy_stack()' - Copy the top N stack objects. | |
650 | */ | |
651 | ||
652 | static int /* O - 0 on success, -1 on error */ | |
653 | copy_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
654 | int c) /* I - Number of objects to copy */ | |
655 | { | |
656 | int n; /* Index */ | |
657 | ||
658 | ||
659 | if (c < 0) | |
660 | return (-1); | |
661 | else if (c == 0) | |
662 | return (0); | |
663 | ||
664 | if ((n = st->num_objs - c) < 0) | |
665 | return (-1); | |
666 | ||
667 | while (c > 0) | |
668 | { | |
669 | if (!push_stack(st, st->objs + n)) | |
670 | return (-1); | |
671 | ||
672 | n ++; | |
673 | c --; | |
674 | } | |
675 | ||
676 | return (0); | |
677 | } | |
678 | ||
679 | ||
680 | /* | |
681 | * 'delete_stack()' - Free memory used by a stack. | |
682 | */ | |
683 | ||
684 | static void | |
685 | delete_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
686 | { | |
687 | free(st->objs); | |
688 | free(st); | |
689 | } | |
690 | ||
691 | ||
f7deaa1a | 692 | /* |
693 | * 'error_object()' - Add an object's value to the current error message. | |
694 | */ | |
695 | ||
696 | static void | |
697 | error_object(_cups_ps_obj_t *obj) /* I - Object to add */ | |
698 | { | |
699 | switch (obj->type) | |
700 | { | |
701 | case CUPS_PS_NAME : | |
702 | _cupsRasterAddError(" /%s", obj->value.name); | |
703 | break; | |
704 | ||
705 | case CUPS_PS_NUMBER : | |
706 | _cupsRasterAddError(" %g", obj->value.number); | |
707 | break; | |
708 | ||
709 | case CUPS_PS_STRING : | |
710 | _cupsRasterAddError(" (%s)", obj->value.string); | |
711 | break; | |
712 | ||
713 | case CUPS_PS_BOOLEAN : | |
714 | if (obj->value.boolean) | |
715 | _cupsRasterAddError(" true"); | |
716 | else | |
717 | _cupsRasterAddError(" false"); | |
718 | break; | |
719 | ||
720 | case CUPS_PS_NULL : | |
721 | _cupsRasterAddError(" null"); | |
722 | break; | |
723 | ||
724 | case CUPS_PS_START_ARRAY : | |
725 | _cupsRasterAddError(" ["); | |
726 | break; | |
727 | ||
728 | case CUPS_PS_END_ARRAY : | |
729 | _cupsRasterAddError(" ]"); | |
730 | break; | |
731 | ||
732 | case CUPS_PS_START_DICT : | |
733 | _cupsRasterAddError(" <<"); | |
734 | break; | |
735 | ||
736 | case CUPS_PS_END_DICT : | |
737 | _cupsRasterAddError(" >>"); | |
738 | break; | |
739 | ||
740 | case CUPS_PS_START_PROC : | |
741 | _cupsRasterAddError(" {"); | |
742 | break; | |
743 | ||
744 | case CUPS_PS_END_PROC : | |
745 | _cupsRasterAddError(" }"); | |
746 | break; | |
747 | ||
748 | case CUPS_PS_COPY : | |
749 | _cupsRasterAddError(" --copy--"); | |
750 | break; | |
751 | ||
752 | case CUPS_PS_CLEARTOMARK : | |
753 | _cupsRasterAddError(" --cleartomark--"); | |
754 | break; | |
755 | ||
756 | case CUPS_PS_DUP : | |
757 | _cupsRasterAddError(" --dup--"); | |
758 | break; | |
759 | ||
760 | case CUPS_PS_INDEX : | |
761 | _cupsRasterAddError(" --index--"); | |
762 | break; | |
763 | ||
764 | case CUPS_PS_POP : | |
765 | _cupsRasterAddError(" --pop--"); | |
766 | break; | |
767 | ||
768 | case CUPS_PS_ROLL : | |
769 | _cupsRasterAddError(" --roll--"); | |
770 | break; | |
771 | ||
772 | case CUPS_PS_SETPAGEDEVICE : | |
773 | _cupsRasterAddError(" --setpagedevice--"); | |
774 | break; | |
775 | ||
776 | case CUPS_PS_STOPPED : | |
777 | _cupsRasterAddError(" --stopped--"); | |
778 | break; | |
779 | ||
780 | case CUPS_PS_OTHER : | |
781 | _cupsRasterAddError(" --%s--", obj->value.other); | |
782 | break; | |
783 | } | |
784 | } | |
785 | ||
786 | ||
787 | /* | |
788 | * 'error_stack()' - Add a stack to the current error message... | |
789 | */ | |
790 | ||
791 | static void | |
792 | error_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
793 | const char *title) /* I - Title string */ | |
794 | { | |
795 | int c; /* Looping var */ | |
796 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
797 | ||
798 | ||
799 | _cupsRasterAddError(title); | |
800 | ||
801 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
802 | error_object(obj); | |
803 | ||
804 | _cupsRasterAddError("\n"); | |
805 | } | |
806 | ||
807 | ||
b86bc4cf | 808 | /* |
809 | * 'index_stack()' - Copy the Nth value on the stack. | |
810 | */ | |
811 | ||
812 | static _cups_ps_obj_t * /* O - New object */ | |
813 | index_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
814 | int n) /* I - Object index */ | |
815 | { | |
816 | if (n < 0 || (n = st->num_objs - n - 1) < 0) | |
817 | return (NULL); | |
818 | ||
819 | return (push_stack(st, st->objs + n)); | |
820 | } | |
821 | ||
822 | ||
823 | /* | |
824 | * 'new_stack()' - Create a new stack. | |
825 | */ | |
826 | ||
827 | static _cups_ps_stack_t * /* O - New stack */ | |
828 | new_stack(void) | |
829 | { | |
830 | _cups_ps_stack_t *st; /* New stack */ | |
831 | ||
832 | ||
833 | if ((st = calloc(1, sizeof(_cups_ps_stack_t))) == NULL) | |
834 | return (NULL); | |
835 | ||
836 | st->alloc_objs = 32; | |
837 | ||
838 | if ((st->objs = calloc(32, sizeof(_cups_ps_obj_t))) == NULL) | |
839 | { | |
840 | free(st); | |
841 | return (NULL); | |
842 | } | |
843 | else | |
844 | return (st); | |
845 | } | |
846 | ||
847 | ||
848 | /* | |
849 | * 'pop_stock()' - Pop the top object off the stack. | |
850 | */ | |
851 | ||
852 | static _cups_ps_obj_t * /* O - Object */ | |
853 | pop_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
854 | { | |
855 | if (st->num_objs > 0) | |
856 | { | |
857 | st->num_objs --; | |
858 | ||
859 | return (st->objs + st->num_objs); | |
860 | } | |
861 | else | |
862 | return (NULL); | |
863 | } | |
864 | ||
865 | ||
866 | /* | |
867 | * 'push_stack()' - Push an object on the stack. | |
868 | */ | |
869 | ||
870 | static _cups_ps_obj_t * /* O - New object */ | |
871 | push_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
872 | _cups_ps_obj_t *obj) /* I - Object */ | |
873 | { | |
874 | _cups_ps_obj_t *temp; /* New object */ | |
875 | ||
876 | ||
877 | if (st->num_objs >= st->alloc_objs) | |
878 | { | |
879 | ||
880 | ||
881 | st->alloc_objs += 32; | |
882 | ||
883 | if ((temp = realloc(st->objs, st->alloc_objs * | |
884 | sizeof(_cups_ps_obj_t))) == NULL) | |
885 | return (NULL); | |
886 | ||
887 | st->objs = temp; | |
888 | memset(temp + st->num_objs, 0, 32 * sizeof(_cups_ps_obj_t)); | |
889 | } | |
890 | ||
891 | temp = st->objs + st->num_objs; | |
892 | st->num_objs ++; | |
893 | ||
894 | memcpy(temp, obj, sizeof(_cups_ps_obj_t)); | |
895 | ||
896 | return (temp); | |
897 | } | |
898 | ||
899 | ||
900 | /* | |
901 | * 'roll_stack()' - Rotate stack objects. | |
902 | */ | |
903 | ||
904 | static int /* O - 0 on success, -1 on error */ | |
905 | roll_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
906 | int c, /* I - Number of objects */ | |
907 | int s) /* I - Amount to shift */ | |
908 | { | |
909 | _cups_ps_obj_t *temp; /* Temporary array of objects */ | |
910 | int n; /* Index into array */ | |
911 | ||
912 | ||
913 | DEBUG_printf((" roll_stack(st=%p, s=%d, c=%d)\n", st, s, c)); | |
914 | ||
915 | /* | |
916 | * Range check input... | |
917 | */ | |
918 | ||
919 | if (c < 0) | |
920 | return (-1); | |
921 | else if (c == 0) | |
922 | return (0); | |
923 | ||
924 | if ((n = st->num_objs - c) < 0) | |
925 | return (-1); | |
926 | ||
927 | s %= c; | |
928 | ||
929 | if (s == 0) | |
930 | return (0); | |
931 | ||
932 | /* | |
933 | * Copy N objects and move things around... | |
934 | */ | |
935 | ||
936 | if (s < 0) | |
937 | { | |
ef416fc2 | 938 | /* |
b86bc4cf | 939 | * Shift down... |
ef416fc2 | 940 | */ |
941 | ||
b86bc4cf | 942 | s = -s; |
ef416fc2 | 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, s * sizeof(_cups_ps_obj_t)); |
948 | memmove(st->objs + n, st->objs + n + s, (c - s) * sizeof(_cups_ps_obj_t)); | |
949 | memcpy(st->objs + n + c - s, temp, s * sizeof(_cups_ps_obj_t)); | |
950 | } | |
951 | else | |
952 | { | |
ef416fc2 | 953 | /* |
b86bc4cf | 954 | * Shift up... |
ef416fc2 | 955 | */ |
956 | ||
b86bc4cf | 957 | if ((temp = calloc(s, sizeof(_cups_ps_obj_t))) == NULL) |
958 | return (-1); | |
ef416fc2 | 959 | |
b86bc4cf | 960 | memcpy(temp, st->objs + n + c - s, s * sizeof(_cups_ps_obj_t)); |
961 | memmove(st->objs + n + s, st->objs + n, | |
962 | (c - s) * sizeof(_cups_ps_obj_t)); | |
963 | memcpy(st->objs + n, temp, s * sizeof(_cups_ps_obj_t)); | |
964 | } | |
ef416fc2 | 965 | |
b86bc4cf | 966 | free(temp); |
967 | ||
968 | return (0); | |
969 | } | |
ef416fc2 | 970 | |
ef416fc2 | 971 | |
b86bc4cf | 972 | /* |
973 | * 'scan_ps()' - Scan a string for the next PS object. | |
974 | */ | |
975 | ||
976 | static _cups_ps_obj_t * /* O - New object or NULL on EOF */ | |
977 | scan_ps(_cups_ps_stack_t *st, /* I - Stack */ | |
978 | char **ptr) /* IO - String pointer */ | |
979 | { | |
980 | _cups_ps_obj_t obj; /* Current object */ | |
981 | char *start, /* Start of object */ | |
982 | *cur, /* Current position */ | |
983 | *valptr, /* Pointer into value string */ | |
984 | *valend; /* End of value string */ | |
985 | int parens; /* Parenthesis nesting level */ | |
ef416fc2 | 986 | |
ef416fc2 | 987 | |
b86bc4cf | 988 | /* |
989 | * Skip leading whitespace... | |
990 | */ | |
991 | ||
992 | for (cur = *ptr; *cur; cur ++) | |
993 | { | |
994 | if (*cur == '%') | |
ef416fc2 | 995 | { |
996 | /* | |
b86bc4cf | 997 | * Comment, skip to end of line... |
ef416fc2 | 998 | */ |
999 | ||
b86bc4cf | 1000 | for (cur ++; *cur && *cur != '\n' && *cur != '\r'; cur ++); |
b0f6947b MS |
1001 | |
1002 | if (!*cur) | |
1003 | cur --; | |
b86bc4cf | 1004 | } |
1005 | else if (!isspace(*cur & 255)) | |
1006 | break; | |
1007 | } | |
ef416fc2 | 1008 | |
b86bc4cf | 1009 | if (!*cur) |
1010 | { | |
1011 | *ptr = NULL; | |
ef416fc2 | 1012 | |
b86bc4cf | 1013 | return (NULL); |
1014 | } | |
ef416fc2 | 1015 | |
b86bc4cf | 1016 | /* |
1017 | * See what we have... | |
1018 | */ | |
ef416fc2 | 1019 | |
b86bc4cf | 1020 | memset(&obj, 0, sizeof(obj)); |
ef416fc2 | 1021 | |
b86bc4cf | 1022 | switch (*cur) |
1023 | { | |
1024 | case '(' : /* (string) */ | |
1025 | obj.type = CUPS_PS_STRING; | |
1026 | start = cur; | |
1027 | ||
1028 | for (cur ++, parens = 1, valptr = obj.value.string, | |
1029 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1030 | *cur; | |
1031 | cur ++) | |
1032 | { | |
1033 | if (*cur == ')' && parens == 1) | |
1034 | break; | |
1035 | ||
1036 | if (*cur == '(') | |
1037 | parens ++; | |
1038 | else if (*cur == ')') | |
1039 | parens --; | |
1040 | ||
1041 | if (valptr >= valend) | |
1042 | { | |
1043 | *ptr = start; | |
1044 | ||
1045 | return (NULL); | |
1046 | } | |
1047 | ||
1048 | if (*cur == '\\') | |
1049 | { | |
1050 | /* | |
1051 | * Decode escaped character... | |
1052 | */ | |
1053 | ||
1054 | cur ++; | |
1055 | ||
1056 | if (*cur == 'b') | |
1057 | *valptr++ = '\b'; | |
1058 | else if (*cur == 'f') | |
1059 | *valptr++ = '\f'; | |
1060 | else if (*cur == 'n') | |
1061 | *valptr++ = '\n'; | |
1062 | else if (*cur == 'r') | |
1063 | *valptr++ = '\r'; | |
1064 | else if (*cur == 't') | |
1065 | *valptr++ = '\t'; | |
1066 | else if (*cur >= '0' && *cur <= '7') | |
1067 | { | |
1068 | int ch = *cur - '0'; | |
1069 | ||
1070 | if (cur[1] >= '0' && cur[1] <= '7') | |
1071 | { | |
1072 | cur ++; | |
1073 | ch = (ch << 3) + *cur - '0'; | |
1074 | } | |
1075 | ||
1076 | if (cur[1] >= '0' && cur[1] <= '7') | |
1077 | { | |
1078 | cur ++; | |
1079 | ch = (ch << 3) + *cur - '0'; | |
1080 | } | |
1081 | ||
1082 | *valptr++ = ch; | |
1083 | } | |
1084 | else if (*cur == '\r') | |
1085 | { | |
1086 | if (cur[1] == '\n') | |
1087 | cur ++; | |
1088 | } | |
1089 | else if (*cur != '\n') | |
1090 | *valptr++ = *cur; | |
1091 | } | |
1092 | else | |
1093 | *valptr++ = *cur; | |
1094 | } | |
1095 | ||
1096 | if (*cur != ')') | |
1097 | { | |
1098 | *ptr = start; | |
1099 | ||
1100 | return (NULL); | |
1101 | } | |
1102 | ||
1103 | cur ++; | |
1104 | break; | |
1105 | ||
1106 | case '[' : /* Start array */ | |
1107 | obj.type = CUPS_PS_START_ARRAY; | |
1108 | cur ++; | |
1109 | break; | |
1110 | ||
1111 | case ']' : /* End array */ | |
1112 | obj.type = CUPS_PS_END_ARRAY; | |
1113 | cur ++; | |
1114 | break; | |
1115 | ||
1116 | case '<' : /* Start dictionary or hex string */ | |
1117 | if (cur[1] == '<') | |
1118 | { | |
1119 | obj.type = CUPS_PS_START_DICT; | |
1120 | cur += 2; | |
1121 | } | |
ef416fc2 | 1122 | else |
b86bc4cf | 1123 | { |
1124 | obj.type = CUPS_PS_STRING; | |
1125 | start = cur; | |
1126 | ||
1127 | for (cur ++, valptr = obj.value.string, | |
1128 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1129 | *cur; | |
1130 | cur ++) | |
1131 | { | |
1132 | int ch; /* Current character */ | |
1133 | ||
1134 | ||
1135 | ||
1136 | if (*cur == '>') | |
1137 | break; | |
1138 | else if (valptr >= valend || !isxdigit(*cur & 255)) | |
1139 | { | |
1140 | *ptr = start; | |
1141 | return (NULL); | |
1142 | } | |
1143 | ||
1144 | if (*cur >= '0' && *cur <= '9') | |
1145 | ch = (*cur - '0') << 4; | |
1146 | else | |
1147 | ch = (tolower(*cur) - 'a' + 10) << 4; | |
1148 | ||
1149 | if (isxdigit(cur[1] & 255)) | |
1150 | { | |
1151 | cur ++; | |
1152 | ||
1153 | if (*cur >= '0' && *cur <= '9') | |
1154 | ch |= *cur - '0'; | |
1155 | else | |
1156 | ch |= tolower(*cur) - 'a' + 10; | |
1157 | } | |
1158 | ||
1159 | *valptr++ = ch; | |
1160 | } | |
1161 | ||
1162 | if (*cur != '>') | |
1163 | { | |
1164 | *ptr = start; | |
1165 | return (NULL); | |
1166 | } | |
1167 | ||
1168 | cur ++; | |
1169 | } | |
1170 | break; | |
ef416fc2 | 1171 | |
b86bc4cf | 1172 | case '>' : /* End dictionary? */ |
1173 | if (cur[1] == '>') | |
1174 | { | |
1175 | obj.type = CUPS_PS_END_DICT; | |
1176 | cur += 2; | |
1177 | } | |
1178 | else | |
1179 | { | |
1180 | obj.type = CUPS_PS_OTHER; | |
1181 | obj.value.other[0] = *cur; | |
1182 | ||
1183 | cur ++; | |
1184 | } | |
1185 | break; | |
1186 | ||
1187 | case '{' : /* Start procedure */ | |
1188 | obj.type = CUPS_PS_START_PROC; | |
1189 | cur ++; | |
1190 | break; | |
1191 | ||
1192 | case '}' : /* End procedure */ | |
1193 | obj.type = CUPS_PS_END_PROC; | |
1194 | cur ++; | |
1195 | break; | |
1196 | ||
1197 | case '-' : /* Possible number */ | |
1198 | case '+' : | |
1199 | if (!isdigit(cur[1] & 255) && cur[1] != '.') | |
1200 | { | |
1201 | obj.type = CUPS_PS_OTHER; | |
1202 | obj.value.other[0] = *cur; | |
1203 | ||
1204 | cur ++; | |
1205 | break; | |
1206 | } | |
1207 | ||
1208 | case '0' : /* Number */ | |
1209 | case '1' : | |
1210 | case '2' : | |
1211 | case '3' : | |
1212 | case '4' : | |
1213 | case '5' : | |
1214 | case '6' : | |
1215 | case '7' : | |
1216 | case '8' : | |
1217 | case '9' : | |
1218 | case '.' : | |
1219 | obj.type = CUPS_PS_NUMBER; | |
1220 | ||
1221 | start = cur; | |
1222 | for (cur ++; *cur; cur ++) | |
1223 | if (!isdigit(*cur & 255)) | |
1224 | break; | |
1225 | ||
1226 | if (*cur == '#') | |
1227 | { | |
1228 | /* | |
1229 | * Integer with radix... | |
1230 | */ | |
1231 | ||
1232 | obj.value.number = strtol(cur + 1, &cur, atoi(start)); | |
1233 | break; | |
1234 | } | |
1235 | else if (strchr(".Ee()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1236 | { | |
1237 | /* | |
1238 | * Integer or real number... | |
1239 | */ | |
ef416fc2 | 1240 | |
b86bc4cf | 1241 | obj.value.number = _cupsStrScand(start, &cur, localeconv()); |
1242 | break; | |
1243 | } | |
1244 | else | |
1245 | cur = start; | |
ef416fc2 | 1246 | |
b86bc4cf | 1247 | default : /* Operator/variable name */ |
1248 | start = cur; | |
1249 | ||
1250 | if (*cur == '/') | |
1251 | { | |
1252 | obj.type = CUPS_PS_NAME; | |
1253 | valptr = obj.value.name; | |
1254 | valend = obj.value.name + sizeof(obj.value.name) - 1; | |
1255 | cur ++; | |
1256 | } | |
ef416fc2 | 1257 | else |
b86bc4cf | 1258 | { |
1259 | obj.type = CUPS_PS_OTHER; | |
1260 | valptr = obj.value.other; | |
1261 | valend = obj.value.other + sizeof(obj.value.other) - 1; | |
1262 | } | |
ef416fc2 | 1263 | |
b86bc4cf | 1264 | while (*cur) |
1265 | { | |
1266 | if (strchr("()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1267 | break; | |
1268 | else if (valptr < valend) | |
1269 | *valptr++ = *cur++; | |
1270 | else | |
1271 | { | |
1272 | *ptr = start; | |
1273 | return (NULL); | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | if (obj.type == CUPS_PS_OTHER) | |
1278 | { | |
1279 | if (!strcmp(obj.value.other, "true")) | |
1280 | { | |
1281 | obj.type = CUPS_PS_BOOLEAN; | |
1282 | obj.value.boolean = 1; | |
1283 | } | |
1284 | else if (!strcmp(obj.value.other, "false")) | |
1285 | { | |
1286 | obj.type = CUPS_PS_BOOLEAN; | |
1287 | obj.value.boolean = 0; | |
1288 | } | |
1289 | else if (!strcmp(obj.value.other, "null")) | |
1290 | obj.type = CUPS_PS_NULL; | |
1291 | else if (!strcmp(obj.value.other, "cleartomark")) | |
1292 | obj.type = CUPS_PS_CLEARTOMARK; | |
1293 | else if (!strcmp(obj.value.other, "copy")) | |
1294 | obj.type = CUPS_PS_COPY; | |
1295 | else if (!strcmp(obj.value.other, "dup")) | |
1296 | obj.type = CUPS_PS_DUP; | |
1297 | else if (!strcmp(obj.value.other, "index")) | |
1298 | obj.type = CUPS_PS_INDEX; | |
1299 | else if (!strcmp(obj.value.other, "pop")) | |
1300 | obj.type = CUPS_PS_POP; | |
1301 | else if (!strcmp(obj.value.other, "roll")) | |
1302 | obj.type = CUPS_PS_ROLL; | |
1303 | else if (!strcmp(obj.value.other, "setpagedevice")) | |
1304 | obj.type = CUPS_PS_SETPAGEDEVICE; | |
1305 | else if (!strcmp(obj.value.other, "stopped")) | |
1306 | obj.type = CUPS_PS_STOPPED; | |
1307 | } | |
1308 | break; | |
1309 | } | |
1310 | ||
1311 | /* | |
1312 | * Save the current position in the string and return the new object... | |
1313 | */ | |
1314 | ||
1315 | *ptr = cur; | |
1316 | ||
1317 | return (push_stack(st, &obj)); | |
1318 | } | |
1319 | ||
1320 | ||
1321 | /* | |
1322 | * 'setpagedevice()' - Simulate the PostScript setpagedevice operator. | |
1323 | */ | |
1324 | ||
1325 | static int /* O - 0 on success, -1 on error */ | |
1326 | setpagedevice( | |
1327 | _cups_ps_stack_t *st, /* I - Stack */ | |
1328 | cups_page_header2_t *h, /* O - Page header */ | |
1329 | int *preferred_bits)/* O - Preferred bits per color */ | |
1330 | { | |
1331 | int i; /* Index into array */ | |
1332 | _cups_ps_obj_t *obj, /* Current object */ | |
1333 | *end; /* End of dictionary */ | |
1334 | const char *name; /* Attribute name */ | |
1335 | ||
1336 | ||
1337 | /* | |
1338 | * Make sure we have a dictionary on the stack... | |
1339 | */ | |
1340 | ||
1341 | if (st->num_objs == 0) | |
1342 | return (-1); | |
1343 | ||
1344 | obj = end = st->objs + st->num_objs - 1; | |
1345 | ||
1346 | if (obj->type != CUPS_PS_END_DICT) | |
1347 | return (-1); | |
1348 | ||
1349 | obj --; | |
1350 | ||
1351 | while (obj > st->objs) | |
1352 | { | |
1353 | if (obj->type == CUPS_PS_START_DICT) | |
1354 | break; | |
1355 | ||
1356 | obj --; | |
1357 | } | |
1358 | ||
1359 | if (obj < st->objs) | |
1360 | return (-1); | |
ef416fc2 | 1361 | |
b86bc4cf | 1362 | /* |
1363 | * Found the start of the dictionary, empty the stack to this point... | |
1364 | */ | |
1365 | ||
1366 | st->num_objs = obj - st->objs; | |
1367 | ||
1368 | /* | |
1369 | * Now pull /name and value pairs from the dictionary... | |
1370 | */ | |
1371 | ||
ae71f5de | 1372 | DEBUG_puts("setpagedevice: Dictionary:"); |
b86bc4cf | 1373 | |
1374 | for (obj ++; obj < end; obj ++) | |
1375 | { | |
ef416fc2 | 1376 | /* |
b86bc4cf | 1377 | * Grab the name... |
ef416fc2 | 1378 | */ |
1379 | ||
b86bc4cf | 1380 | if (obj->type != CUPS_PS_NAME) |
1381 | return (-1); | |
1382 | ||
1383 | name = obj->value.name; | |
1384 | obj ++; | |
1385 | ||
1386 | #ifdef DEBUG | |
ae71f5de | 1387 | DEBUG_printf(("setpagedevice: /%s ", name)); |
b86bc4cf | 1388 | DEBUG_object(obj); |
b86bc4cf | 1389 | #endif /* DEBUG */ |
1390 | ||
1391 | /* | |
1392 | * Then grab the value... | |
1393 | */ | |
1394 | ||
1395 | if (!strcmp(name, "MediaClass") && obj->type == CUPS_PS_STRING) | |
1396 | strlcpy(h->MediaClass, obj->value.string, sizeof(h->MediaClass)); | |
1397 | else if (!strcmp(name, "MediaColor") && obj->type == CUPS_PS_STRING) | |
1398 | strlcpy(h->MediaColor, obj->value.string, sizeof(h->MediaColor)); | |
1399 | else if (!strcmp(name, "MediaType") && obj->type == CUPS_PS_STRING) | |
1400 | strlcpy(h->MediaType, obj->value.string, sizeof(h->MediaType)); | |
1401 | else if (!strcmp(name, "OutputType") && obj->type == CUPS_PS_STRING) | |
1402 | strlcpy(h->OutputType, obj->value.string, sizeof(h->OutputType)); | |
1403 | else if (!strcmp(name, "AdvanceDistance") && obj->type == CUPS_PS_NUMBER) | |
1404 | h->AdvanceDistance = (unsigned)obj->value.number; | |
1405 | else if (!strcmp(name, "AdvanceMedia") && obj->type == CUPS_PS_NUMBER) | |
1406 | h->AdvanceMedia = (unsigned)obj->value.number; | |
1407 | else if (!strcmp(name, "Collate") && obj->type == CUPS_PS_BOOLEAN) | |
1408 | h->Collate = (unsigned)obj->value.boolean; | |
1409 | else if (!strcmp(name, "CutMedia") && obj->type == CUPS_PS_NUMBER) | |
1410 | h->CutMedia = (cups_cut_t)(unsigned)obj->value.number; | |
1411 | else if (!strcmp(name, "Duplex") && obj->type == CUPS_PS_BOOLEAN) | |
1412 | h->Duplex = (unsigned)obj->value.boolean; | |
1413 | else if (!strcmp(name, "HWResolution") && obj->type == CUPS_PS_START_ARRAY) | |
ef416fc2 | 1414 | { |
b86bc4cf | 1415 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && |
1416 | obj[3].type == CUPS_PS_END_ARRAY) | |
1417 | { | |
1418 | h->HWResolution[0] = (unsigned)obj[1].value.number; | |
1419 | h->HWResolution[1] = (unsigned)obj[2].value.number; | |
1420 | obj += 3; | |
1421 | } | |
1422 | else | |
ef416fc2 | 1423 | return (-1); |
1424 | } | |
b86bc4cf | 1425 | else if (!strcmp(name, "InsertSheet") && obj->type == CUPS_PS_BOOLEAN) |
1426 | h->InsertSheet = (unsigned)obj->value.boolean; | |
1427 | else if (!strcmp(name, "Jog") && obj->type == CUPS_PS_NUMBER) | |
1428 | h->Jog = (unsigned)obj->value.number; | |
1429 | else if (!strcmp(name, "LeadingEdge") && obj->type == CUPS_PS_NUMBER) | |
1430 | h->LeadingEdge = (unsigned)obj->value.number; | |
1431 | else if (!strcmp(name, "ManualFeed") && obj->type == CUPS_PS_BOOLEAN) | |
1432 | h->ManualFeed = (unsigned)obj->value.boolean; | |
09a101d6 | 1433 | else if ((!strcmp(name, "cupsMediaPosition") || |
b86bc4cf | 1434 | !strcmp(name, "MediaPosition")) && obj->type == CUPS_PS_NUMBER) |
09a101d6 | 1435 | { |
1436 | /* | |
1437 | * cupsMediaPosition is supported for backwards compatibility only. | |
1438 | * We added it back in the Ghostscript 5.50 days to work around a | |
1439 | * bug in Ghostscript WRT handling of MediaPosition and setpagedevice. | |
1440 | * | |
1441 | * All new development should set MediaPosition... | |
1442 | */ | |
1443 | ||
b86bc4cf | 1444 | h->MediaPosition = (unsigned)obj->value.number; |
09a101d6 | 1445 | } |
b86bc4cf | 1446 | else if (!strcmp(name, "MediaWeight") && obj->type == CUPS_PS_NUMBER) |
1447 | h->MediaWeight = (unsigned)obj->value.number; | |
1448 | else if (!strcmp(name, "MirrorPrint") && obj->type == CUPS_PS_BOOLEAN) | |
1449 | h->MirrorPrint = (unsigned)obj->value.boolean; | |
1450 | else if (!strcmp(name, "NegativePrint") && obj->type == CUPS_PS_BOOLEAN) | |
1451 | h->NegativePrint = (unsigned)obj->value.boolean; | |
1452 | else if (!strcmp(name, "NumCopies") && obj->type == CUPS_PS_NUMBER) | |
1453 | h->NumCopies = (unsigned)obj->value.number; | |
1454 | else if (!strcmp(name, "Orientation") && obj->type == CUPS_PS_NUMBER) | |
1455 | h->Orientation = (unsigned)obj->value.number; | |
1456 | else if (!strcmp(name, "OutputFaceUp") && obj->type == CUPS_PS_BOOLEAN) | |
1457 | h->OutputFaceUp = (unsigned)obj->value.boolean; | |
1458 | else if (!strcmp(name, "PageSize") && obj->type == CUPS_PS_START_ARRAY) | |
ef416fc2 | 1459 | { |
b86bc4cf | 1460 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && |
1461 | obj[3].type == CUPS_PS_END_ARRAY) | |
1462 | { | |
c8fef167 MS |
1463 | h->cupsPageSize[0] = (float)obj[1].value.number; |
1464 | h->cupsPageSize[1] = (float)obj[2].value.number; | |
b86bc4cf | 1465 | |
1466 | h->PageSize[0] = (unsigned)obj[1].value.number; | |
1467 | h->PageSize[1] = (unsigned)obj[2].value.number; | |
1468 | ||
1469 | obj += 3; | |
1470 | } | |
1471 | else | |
fa73b229 | 1472 | return (-1); |
ef416fc2 | 1473 | } |
b86bc4cf | 1474 | else if (!strcmp(name, "Separations") && obj->type == CUPS_PS_BOOLEAN) |
1475 | h->Separations = (unsigned)obj->value.boolean; | |
1476 | else if (!strcmp(name, "TraySwitch") && obj->type == CUPS_PS_BOOLEAN) | |
1477 | h->TraySwitch = (unsigned)obj->value.boolean; | |
1478 | else if (!strcmp(name, "Tumble") && obj->type == CUPS_PS_BOOLEAN) | |
1479 | h->Tumble = (unsigned)obj->value.boolean; | |
1480 | else if (!strcmp(name, "cupsMediaType") && obj->type == CUPS_PS_NUMBER) | |
1481 | h->cupsMediaType = (unsigned)obj->value.number; | |
1482 | else if (!strcmp(name, "cupsBitsPerColor") && obj->type == CUPS_PS_NUMBER) | |
1483 | h->cupsBitsPerColor = (unsigned)obj->value.number; | |
1484 | else if (!strcmp(name, "cupsPreferredBitsPerColor") && | |
1485 | obj->type == CUPS_PS_NUMBER) | |
1486 | *preferred_bits = (int)obj->value.number; | |
1487 | else if (!strcmp(name, "cupsColorOrder") && obj->type == CUPS_PS_NUMBER) | |
1488 | h->cupsColorOrder = (cups_order_t)(unsigned)obj->value.number; | |
1489 | else if (!strcmp(name, "cupsColorSpace") && obj->type == CUPS_PS_NUMBER) | |
1490 | h->cupsColorSpace = (cups_cspace_t)(unsigned)obj->value.number; | |
1491 | else if (!strcmp(name, "cupsCompression") && obj->type == CUPS_PS_NUMBER) | |
1492 | h->cupsCompression = (unsigned)obj->value.number; | |
1493 | else if (!strcmp(name, "cupsRowCount") && obj->type == CUPS_PS_NUMBER) | |
1494 | h->cupsRowCount = (unsigned)obj->value.number; | |
1495 | else if (!strcmp(name, "cupsRowFeed") && obj->type == CUPS_PS_NUMBER) | |
1496 | h->cupsRowFeed = (unsigned)obj->value.number; | |
1497 | else if (!strcmp(name, "cupsRowStep") && obj->type == CUPS_PS_NUMBER) | |
1498 | h->cupsRowStep = (unsigned)obj->value.number; | |
923edb68 | 1499 | else if (!strcmp(name, "cupsBorderlessScalingFactor") && |
b86bc4cf | 1500 | obj->type == CUPS_PS_NUMBER) |
c8fef167 | 1501 | h->cupsBorderlessScalingFactor = (float)obj->value.number; |
b86bc4cf | 1502 | else if (!strncmp(name, "cupsInteger", 11) && obj->type == CUPS_PS_NUMBER) |
ef416fc2 | 1503 | { |
b86bc4cf | 1504 | if ((i = atoi(name + 11)) < 0 || i > 15) |
ef416fc2 | 1505 | return (-1); |
1506 | ||
b86bc4cf | 1507 | h->cupsInteger[i] = (unsigned)obj->value.number; |
ef416fc2 | 1508 | } |
b86bc4cf | 1509 | else if (!strncmp(name, "cupsReal", 8) && obj->type == CUPS_PS_NUMBER) |
ef416fc2 | 1510 | { |
b86bc4cf | 1511 | if ((i = atoi(name + 8)) < 0 || i > 15) |
ef416fc2 | 1512 | return (-1); |
1513 | ||
c8fef167 | 1514 | h->cupsReal[i] = (float)obj->value.number; |
ef416fc2 | 1515 | } |
b86bc4cf | 1516 | else if (!strncmp(name, "cupsString", 10) && obj->type == CUPS_PS_STRING) |
ef416fc2 | 1517 | { |
b86bc4cf | 1518 | if ((i = atoi(name + 10)) < 0 || i > 15) |
ef416fc2 | 1519 | return (-1); |
1520 | ||
b86bc4cf | 1521 | strlcpy(h->cupsString[i], obj->value.string, sizeof(h->cupsString[i])); |
ef416fc2 | 1522 | } |
b86bc4cf | 1523 | else if (!strcmp(name, "cupsMarkerType") && obj->type == CUPS_PS_STRING) |
1524 | strlcpy(h->cupsMarkerType, obj->value.string, sizeof(h->cupsMarkerType)); | |
1525 | else if (!strcmp(name, "cupsPageSizeName") && obj->type == CUPS_PS_STRING) | |
1526 | strlcpy(h->cupsPageSizeName, obj->value.string, | |
1527 | sizeof(h->cupsPageSizeName)); | |
1528 | else if (!strcmp(name, "cupsRenderingIntent") && | |
1529 | obj->type == CUPS_PS_STRING) | |
1530 | strlcpy(h->cupsRenderingIntent, obj->value.string, | |
1531 | sizeof(h->cupsRenderingIntent)); | |
1532 | else | |
ef416fc2 | 1533 | { |
b86bc4cf | 1534 | /* |
1535 | * Ignore unknown name+value... | |
1536 | */ | |
1537 | ||
1538 | DEBUG_printf((" Unknown name (\"%s\") or value...\n", name)); | |
1539 | ||
1540 | while (obj[1].type != CUPS_PS_NAME && obj < end) | |
1541 | obj ++; | |
ef416fc2 | 1542 | } |
ef416fc2 | 1543 | } |
1544 | ||
ef416fc2 | 1545 | return (0); |
1546 | } | |
1547 | ||
1548 | ||
b86bc4cf | 1549 | #ifdef DEBUG |
1550 | /* | |
1551 | * 'DEBUG_object()' - Print an object's value... | |
1552 | */ | |
1553 | ||
1554 | static void | |
1555 | DEBUG_object(_cups_ps_obj_t *obj) /* I - Object to print */ | |
1556 | { | |
1557 | switch (obj->type) | |
1558 | { | |
1559 | case CUPS_PS_NAME : | |
ae71f5de | 1560 | DEBUG_printf(("/%s\n", obj->value.name)); |
b86bc4cf | 1561 | break; |
1562 | ||
1563 | case CUPS_PS_NUMBER : | |
ae71f5de | 1564 | DEBUG_printf(("%g\n", obj->value.number)); |
b86bc4cf | 1565 | break; |
1566 | ||
1567 | case CUPS_PS_STRING : | |
ae71f5de | 1568 | DEBUG_printf(("(%s)\n", obj->value.string)); |
b86bc4cf | 1569 | break; |
1570 | ||
1571 | case CUPS_PS_BOOLEAN : | |
1572 | if (obj->value.boolean) | |
ae71f5de | 1573 | DEBUG_puts("true"); |
b86bc4cf | 1574 | else |
ae71f5de | 1575 | DEBUG_puts("false"); |
b86bc4cf | 1576 | break; |
1577 | ||
1578 | case CUPS_PS_NULL : | |
ae71f5de | 1579 | DEBUG_puts("null"); |
b86bc4cf | 1580 | break; |
1581 | ||
1582 | case CUPS_PS_START_ARRAY : | |
ae71f5de | 1583 | DEBUG_puts("["); |
b86bc4cf | 1584 | break; |
1585 | ||
1586 | case CUPS_PS_END_ARRAY : | |
ae71f5de | 1587 | DEBUG_puts("]"); |
b86bc4cf | 1588 | break; |
1589 | ||
1590 | case CUPS_PS_START_DICT : | |
ae71f5de | 1591 | DEBUG_puts("<<"); |
b86bc4cf | 1592 | break; |
1593 | ||
1594 | case CUPS_PS_END_DICT : | |
ae71f5de | 1595 | DEBUG_puts(">>"); |
b86bc4cf | 1596 | break; |
1597 | ||
1598 | case CUPS_PS_START_PROC : | |
ae71f5de | 1599 | DEBUG_puts("{"); |
b86bc4cf | 1600 | break; |
1601 | ||
1602 | case CUPS_PS_END_PROC : | |
ae71f5de | 1603 | DEBUG_puts("}"); |
b86bc4cf | 1604 | break; |
1605 | ||
1606 | case CUPS_PS_CLEARTOMARK : | |
ae71f5de | 1607 | DEBUG_puts("--cleartomark--"); |
b86bc4cf | 1608 | break; |
1609 | ||
1610 | case CUPS_PS_COPY : | |
ae71f5de | 1611 | DEBUG_puts("--copy--"); |
b86bc4cf | 1612 | break; |
1613 | ||
1614 | case CUPS_PS_DUP : | |
ae71f5de | 1615 | DEBUG_puts("--dup--"); |
b86bc4cf | 1616 | break; |
1617 | ||
1618 | case CUPS_PS_INDEX : | |
ae71f5de | 1619 | DEBUG_puts("--index--"); |
b86bc4cf | 1620 | break; |
1621 | ||
1622 | case CUPS_PS_POP : | |
ae71f5de | 1623 | DEBUG_puts("--pop--"); |
b86bc4cf | 1624 | break; |
1625 | ||
1626 | case CUPS_PS_ROLL : | |
ae71f5de | 1627 | DEBUG_puts("--roll--"); |
b86bc4cf | 1628 | break; |
1629 | ||
1630 | case CUPS_PS_SETPAGEDEVICE : | |
ae71f5de | 1631 | DEBUG_puts("--setpagedevice--"); |
b86bc4cf | 1632 | break; |
1633 | ||
1634 | case CUPS_PS_STOPPED : | |
ae71f5de | 1635 | DEBUG_puts("--stopped--"); |
b86bc4cf | 1636 | break; |
1637 | ||
1638 | case CUPS_PS_OTHER : | |
ae71f5de | 1639 | DEBUG_printf(("--%s--\n", obj->value.other)); |
b86bc4cf | 1640 | break; |
1641 | } | |
1642 | } | |
1643 | ||
1644 | ||
1645 | /* | |
1646 | * 'DEBUG_stack()' - Print a stack... | |
1647 | */ | |
1648 | ||
1649 | static void | |
1650 | DEBUG_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
1651 | { | |
1652 | int c; /* Looping var */ | |
1653 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
1654 | ||
1655 | ||
1656 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
b86bc4cf | 1657 | DEBUG_object(obj); |
b86bc4cf | 1658 | } |
1659 | #endif /* DEBUG */ | |
1660 | ||
1661 | ||
ef416fc2 | 1662 | /* |
b19ccc9e | 1663 | * End of "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $". |
ef416fc2 | 1664 | */ |