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