2 * "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $"
4 * PPD command interpreter for CUPS.
6 * Copyright 2007-2010 by Apple Inc.
7 * Copyright 1993-2007 by Easy Software Products.
9 * These coded instructions, statements, and computer programs are the
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/".
15 * This file is subject to the Apple OS-Developed Software exception.
19 * cupsRasterInterpretPPD() - Interpret PPD commands to create a page header.
20 * _cupsRasterExecPS() - Execute PostScript code to initialize a page
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.
25 * error_object() - Add an object's value to the current error
27 * error_stack() - Add a stack to the current error message.
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.
40 * Include necessary headers...
43 #include "image-private.h"
47 * Stack values for the PostScript mini-interpreter...
69 CUPS_PS_SETPAGEDEVICE
,
76 _cups_ps_type_t type
; /* Object type */
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 */
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 */
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
);
102 static void error_object(_cups_ps_obj_t
*obj
);
103 static void error_stack(_cups_ps_stack_t
*st
, const char *title
);
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
);
115 static void DEBUG_object(_cups_ps_obj_t
*obj
);
116 static void DEBUG_stack(_cups_ps_stack_t
*st
);
121 * 'cupsRasterInterpretPPD()' - Interpret PPD commands to create a page header.
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
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.
134 * The "func" argument specifies an optional callback function that is
135 * called prior to the computation of the final raster data. The function
136 * can make changes to the @link cups_page_header2_t@ data as needed to use a
137 * supported raster format and then returns 0 on success and -1 if the
138 * requested attributes cannot be supported.
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
147 * @since CUPS 1.2/Mac OS X 10.5@
150 int /* O - 0 on success, -1 on failure */
151 cupsRasterInterpretPPD(
152 cups_page_header2_t
*h
, /* O - Page header to create */
153 ppd_file_t
*ppd
, /* I - PPD file */
154 int num_options
, /* I - Number of options */
155 cups_option_t
*options
, /* I - Options */
156 cups_interpret_cb_t func
) /* I - Optional page header callback (@code NULL@ for none) */
158 int status
; /* Cummulative status */
159 char *code
; /* Code to run */
160 const char *val
; /* Option value */
161 ppd_size_t
*size
; /* Current size */
162 float left
, /* Left position */
163 bottom
, /* Bottom position */
164 right
, /* Right position */
165 top
; /* Top position */
166 int preferred_bits
; /* Preferred bits per color */
170 * Range check input...
173 _cupsRasterClearError();
177 _cupsRasterAddError("Page header cannot be NULL!\n");
182 * Reset the page header to the defaults...
185 memset(h
, 0, sizeof(cups_page_header2_t
));
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
;
203 strcpy(h
->cupsPageSizeName
, "Letter");
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.
211 h
->cupsInteger
[0] = 0x80000000;
212 #endif /* __APPLE__ */
215 * Apply patches and options to the page header...
224 * Apply any patch code (used to override the defaults...)
228 status
|= _cupsRasterExecPS(h
, &preferred_bits
, ppd
->patches
);
231 * Then apply printer options in the proper order...
234 if ((code
= ppdEmitString(ppd
, PPD_ORDER_DOCUMENT
, 0.0)) != NULL
)
236 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
240 if ((code
= ppdEmitString(ppd
, PPD_ORDER_ANY
, 0.0)) != NULL
)
242 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
246 if ((code
= ppdEmitString(ppd
, PPD_ORDER_PROLOG
, 0.0)) != NULL
)
248 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
252 if ((code
= ppdEmitString(ppd
, PPD_ORDER_PAGE
, 0.0)) != NULL
)
254 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
260 * Allow option override for page scaling...
263 if ((val
= cupsGetOption("cupsBorderlessScalingFactor", num_options
,
266 float sc
= atof(val
);
268 if (sc
>= 0.1 && sc
<= 2.0)
269 h
->cupsBorderlessScalingFactor
= sc
;
273 * Get the margins for the current size...
276 if ((size
= ppdPageSize(ppd
, NULL
)) != NULL
)
279 * Use the margins from the PPD file...
283 bottom
= size
->bottom
;
287 strlcpy(h
->cupsPageSizeName
, size
->name
, sizeof(h
->cupsPageSizeName
));
289 h
->cupsPageSize
[0] = size
->width
;
290 h
->cupsPageSize
[1] = size
->length
;
295 * Use the default margins...
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
;
314 h
->cupsImagingBBox
[0] = left
;
315 h
->cupsImagingBBox
[1] = bottom
;
316 h
->cupsImagingBBox
[2] = right
;
317 h
->cupsImagingBBox
[3] = top
;
320 * Use the callback to validate the page header...
323 if (func
&& (*func
)(h
, preferred_bits
))
325 _cupsRasterAddError("Page header callback returned error.\n");
330 * Check parameters...
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) ||
338 h
->cupsBorderlessScalingFactor
< 0.1 ||
339 h
->cupsBorderlessScalingFactor
> 2.0)
341 _cupsRasterAddError("Page header uses unsupported values.\n");
346 * Compute the bitmap parameters...
349 h
->cupsWidth
= (int)((right
- left
) * h
->cupsBorderlessScalingFactor
*
350 h
->HWResolution
[0] / 72.0f
+ 0.5f
);
351 h
->cupsHeight
= (int)((top
- bottom
) * h
->cupsBorderlessScalingFactor
*
352 h
->HWResolution
[1] / 72.0f
+ 0.5f
);
354 switch (h
->cupsColorSpace
)
358 case CUPS_CSPACE_WHITE
:
359 case CUPS_CSPACE_GOLD
:
360 case CUPS_CSPACE_SILVER
:
361 h
->cupsNumColors
= 1;
362 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
367 * Ensure that colorimetric colorspaces use at least 8 bits per
371 if (h
->cupsColorSpace
>= CUPS_CSPACE_CIEXYZ
&&
372 h
->cupsBitsPerColor
< 8)
373 h
->cupsBitsPerColor
= 8;
376 * Figure out the number of bits per pixel...
379 if (h
->cupsColorOrder
== CUPS_ORDER_CHUNKED
)
381 if (h
->cupsBitsPerColor
>= 8)
382 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
* 3;
384 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
* 4;
387 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
389 h
->cupsNumColors
= 3;
392 case CUPS_CSPACE_KCMYcm
:
393 if (h
->cupsBitsPerColor
== 1)
395 if (h
->cupsColorOrder
== CUPS_ORDER_CHUNKED
)
396 h
->cupsBitsPerPixel
= 8;
398 h
->cupsBitsPerPixel
= 1;
400 h
->cupsNumColors
= 6;
405 * Fall through to CMYK code...
408 case CUPS_CSPACE_RGBA
:
409 case CUPS_CSPACE_RGBW
:
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;
418 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
420 h
->cupsNumColors
= 4;
424 h
->cupsBytesPerLine
= (h
->cupsBitsPerPixel
* h
->cupsWidth
+ 7) / 8;
426 if (h
->cupsColorOrder
== CUPS_ORDER_BANDED
)
427 h
->cupsBytesPerLine
*= h
->cupsNumColors
;
434 * '_cupsRasterExecPS()' - Execute PostScript code to initialize a page header.
437 int /* O - 0 on success, -1 on error */
439 cups_page_header2_t
*h
, /* O - Page header */
440 int *preferred_bits
,/* O - Preferred bits per color */
441 const char *code
) /* I - PS code to execute */
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 */
449 DEBUG_printf(("_cupsRasterExecPS(h=%p, preferred_bits=%p, code=\"%s\")\n",
450 h
, preferred_bits
, code
? code
: "(null)"));
453 * Copy the PostScript code and create a stack...
456 if ((codecopy
= strdup(code
)) == NULL
)
458 _cupsRasterAddError("Unable to duplicate code string.\n");
462 if ((st
= new_stack()) == NULL
)
464 _cupsRasterAddError("Unable to create stack.\n");
470 * Parse the PS string until we run out of data...
475 while ((obj
= scan_ps(st
, &codeptr
)) != NULL
)
478 DEBUG_printf(("_cupsRasterExecPS: Stack (%d objects)\n", st
->num_objs
));
485 /* Do nothing for regular values */
488 case CUPS_PS_CLEARTOMARK
:
491 if (cleartomark_stack(st
))
492 _cupsRasterAddError("cleartomark: Stack underflow!\n");
495 DEBUG_puts(" dup: ");
502 if ((obj
= pop_stack(st
)) != NULL
)
504 copy_stack(st
, (int)obj
->value
.number
);
507 DEBUG_puts("_cupsRasterExecPS: copy");
518 DEBUG_puts("_cupsRasterExecPS: dup");
525 if ((obj
= pop_stack(st
)) != NULL
)
527 index_stack(st
, (int)obj
->value
.number
);
530 DEBUG_puts("_cupsRasterExecPS: index");
541 DEBUG_puts("_cupsRasterExecPS: pop");
548 if ((obj
= pop_stack(st
)) != NULL
)
553 c
= (int)obj
->value
.number
;
555 if ((obj
= pop_stack(st
)) != NULL
)
557 roll_stack(st
, (int)obj
->value
.number
, c
);
560 DEBUG_puts("_cupsRasterExecPS: roll");
567 case CUPS_PS_SETPAGEDEVICE
:
569 setpagedevice(st
, h
, preferred_bits
);
572 DEBUG_puts("_cupsRasterExecPS: setpagedevice");
577 case CUPS_PS_START_PROC
:
578 case CUPS_PS_END_PROC
:
579 case CUPS_PS_STOPPED
:
584 _cupsRasterAddError("Unknown operator \"%s\"!\n", obj
->value
.other
);
585 DEBUG_printf(("_cupsRasterExecPS: Unknown operator \"%s\"!\n",
590 if (obj
&& obj
->type
== CUPS_PS_OTHER
)
600 if (st
->num_objs
> 0)
602 error_stack(st
, "Stack not empty:");
605 DEBUG_puts("_cupsRasterExecPS: Stack not empty:");
625 * 'cleartomark_stack()' - Clear to the last mark ([) on the stack.
628 static int /* O - 0 on success, -1 on error */
629 cleartomark_stack(_cups_ps_stack_t
*st
) /* I - Stack */
631 _cups_ps_obj_t
*obj
; /* Current object on stack */
634 while ((obj
= pop_stack(st
)) != NULL
)
635 if (obj
->type
== CUPS_PS_START_ARRAY
)
638 return (obj
? 0 : -1);
643 * 'copy_stack()' - Copy the top N stack objects.
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 */
658 if ((n
= st
->num_objs
- c
) < 0)
663 if (!push_stack(st
, st
->objs
+ n
))
675 * 'delete_stack()' - Free memory used by a stack.
679 delete_stack(_cups_ps_stack_t
*st
) /* I - Stack */
687 * 'error_object()' - Add an object's value to the current error message.
691 error_object(_cups_ps_obj_t
*obj
) /* I - Object to add */
696 _cupsRasterAddError(" /%s", obj
->value
.name
);
699 case CUPS_PS_NUMBER
:
700 _cupsRasterAddError(" %g", obj
->value
.number
);
703 case CUPS_PS_STRING
:
704 _cupsRasterAddError(" (%s)", obj
->value
.string
);
707 case CUPS_PS_BOOLEAN
:
708 if (obj
->value
.boolean
)
709 _cupsRasterAddError(" true");
711 _cupsRasterAddError(" false");
715 _cupsRasterAddError(" null");
718 case CUPS_PS_START_ARRAY
:
719 _cupsRasterAddError(" [");
722 case CUPS_PS_END_ARRAY
:
723 _cupsRasterAddError(" ]");
726 case CUPS_PS_START_DICT
:
727 _cupsRasterAddError(" <<");
730 case CUPS_PS_END_DICT
:
731 _cupsRasterAddError(" >>");
734 case CUPS_PS_START_PROC
:
735 _cupsRasterAddError(" {");
738 case CUPS_PS_END_PROC
:
739 _cupsRasterAddError(" }");
743 _cupsRasterAddError(" --copy--");
746 case CUPS_PS_CLEARTOMARK
:
747 _cupsRasterAddError(" --cleartomark--");
751 _cupsRasterAddError(" --dup--");
755 _cupsRasterAddError(" --index--");
759 _cupsRasterAddError(" --pop--");
763 _cupsRasterAddError(" --roll--");
766 case CUPS_PS_SETPAGEDEVICE
:
767 _cupsRasterAddError(" --setpagedevice--");
770 case CUPS_PS_STOPPED
:
771 _cupsRasterAddError(" --stopped--");
775 _cupsRasterAddError(" --%s--", obj
->value
.other
);
782 * 'error_stack()' - Add a stack to the current error message...
786 error_stack(_cups_ps_stack_t
*st
, /* I - Stack */
787 const char *title
) /* I - Title string */
789 int c
; /* Looping var */
790 _cups_ps_obj_t
*obj
; /* Current object on stack */
793 _cupsRasterAddError(title
);
795 for (obj
= st
->objs
, c
= st
->num_objs
; c
> 0; c
--, obj
++)
798 _cupsRasterAddError("\n");
803 * 'index_stack()' - Copy the Nth value on the stack.
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 */
810 if (n
< 0 || (n
= st
->num_objs
- n
- 1) < 0)
813 return (push_stack(st
, st
->objs
+ n
));
818 * 'new_stack()' - Create a new stack.
821 static _cups_ps_stack_t
* /* O - New stack */
824 _cups_ps_stack_t
*st
; /* New stack */
827 if ((st
= calloc(1, sizeof(_cups_ps_stack_t
))) == NULL
)
832 if ((st
->objs
= calloc(32, sizeof(_cups_ps_obj_t
))) == NULL
)
843 * 'pop_stock()' - Pop the top object off the stack.
846 static _cups_ps_obj_t
* /* O - Object */
847 pop_stack(_cups_ps_stack_t
*st
) /* I - Stack */
849 if (st
->num_objs
> 0)
853 return (st
->objs
+ st
->num_objs
);
861 * 'push_stack()' - Push an object on the stack.
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 */
868 _cups_ps_obj_t
*temp
; /* New object */
871 if (st
->num_objs
>= st
->alloc_objs
)
875 st
->alloc_objs
+= 32;
877 if ((temp
= realloc(st
->objs
, st
->alloc_objs
*
878 sizeof(_cups_ps_obj_t
))) == NULL
)
882 memset(temp
+ st
->num_objs
, 0, 32 * sizeof(_cups_ps_obj_t
));
885 temp
= st
->objs
+ st
->num_objs
;
888 memcpy(temp
, obj
, sizeof(_cups_ps_obj_t
));
895 * 'roll_stack()' - Rotate stack objects.
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 */
903 _cups_ps_obj_t
*temp
; /* Temporary array of objects */
904 int n
; /* Index into array */
907 DEBUG_printf((" roll_stack(st=%p, s=%d, c=%d)\n", st
, s
, c
));
910 * Range check input...
918 if ((n
= st
->num_objs
- c
) < 0)
927 * Copy N objects and move things around...
938 if ((temp
= calloc(s
, sizeof(_cups_ps_obj_t
))) == NULL
)
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
));
951 if ((temp
= calloc(s
, sizeof(_cups_ps_obj_t
))) == NULL
)
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
));
967 * 'scan_ps()' - Scan a string for the next PS object.
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 */
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 */
983 * Skip leading whitespace...
986 for (cur
= *ptr
; *cur
; cur
++)
991 * Comment, skip to end of line...
994 for (cur
++; *cur
&& *cur
!= '\n' && *cur
!= '\r'; cur
++);
999 else if (!isspace(*cur
& 255))
1011 * See what we have...
1014 memset(&obj
, 0, sizeof(obj
));
1018 case '(' : /* (string) */
1019 obj
.type
= CUPS_PS_STRING
;
1022 for (cur
++, parens
= 1, valptr
= obj
.value
.string
,
1023 valend
= obj
.value
.string
+ sizeof(obj
.value
.string
) - 1;
1027 if (*cur
== ')' && parens
== 1)
1032 else if (*cur
== ')')
1035 if (valptr
>= valend
)
1045 * Decode escaped character...
1052 else if (*cur
== 'f')
1054 else if (*cur
== 'n')
1056 else if (*cur
== 'r')
1058 else if (*cur
== 't')
1060 else if (*cur
>= '0' && *cur
<= '7')
1062 int ch
= *cur
- '0';
1064 if (cur
[1] >= '0' && cur
[1] <= '7')
1067 ch
= (ch
<< 3) + *cur
- '0';
1070 if (cur
[1] >= '0' && cur
[1] <= '7')
1073 ch
= (ch
<< 3) + *cur
- '0';
1078 else if (*cur
== '\r')
1083 else if (*cur
!= '\n')
1100 case '[' : /* Start array */
1101 obj
.type
= CUPS_PS_START_ARRAY
;
1105 case ']' : /* End array */
1106 obj
.type
= CUPS_PS_END_ARRAY
;
1110 case '<' : /* Start dictionary or hex string */
1113 obj
.type
= CUPS_PS_START_DICT
;
1118 obj
.type
= CUPS_PS_STRING
;
1121 for (cur
++, valptr
= obj
.value
.string
,
1122 valend
= obj
.value
.string
+ sizeof(obj
.value
.string
) - 1;
1126 int ch
; /* Current character */
1132 else if (valptr
>= valend
|| !isxdigit(*cur
& 255))
1138 if (*cur
>= '0' && *cur
<= '9')
1139 ch
= (*cur
- '0') << 4;
1141 ch
= (tolower(*cur
) - 'a' + 10) << 4;
1143 if (isxdigit(cur
[1] & 255))
1147 if (*cur
>= '0' && *cur
<= '9')
1150 ch
|= tolower(*cur
) - 'a' + 10;
1166 case '>' : /* End dictionary? */
1169 obj
.type
= CUPS_PS_END_DICT
;
1174 obj
.type
= CUPS_PS_OTHER
;
1175 obj
.value
.other
[0] = *cur
;
1181 case '{' : /* Start procedure */
1182 obj
.type
= CUPS_PS_START_PROC
;
1186 case '}' : /* End procedure */
1187 obj
.type
= CUPS_PS_END_PROC
;
1191 case '-' : /* Possible number */
1193 if (!isdigit(cur
[1] & 255) && cur
[1] != '.')
1195 obj
.type
= CUPS_PS_OTHER
;
1196 obj
.value
.other
[0] = *cur
;
1202 case '0' : /* Number */
1213 obj
.type
= CUPS_PS_NUMBER
;
1216 for (cur
++; *cur
; cur
++)
1217 if (!isdigit(*cur
& 255))
1223 * Integer with radix...
1226 obj
.value
.number
= strtol(cur
+ 1, &cur
, atoi(start
));
1229 else if (strchr(".Ee()<>[]{}/%", *cur
) || isspace(*cur
& 255))
1232 * Integer or real number...
1235 obj
.value
.number
= _cupsStrScand(start
, &cur
, localeconv());
1241 default : /* Operator/variable name */
1246 obj
.type
= CUPS_PS_NAME
;
1247 valptr
= obj
.value
.name
;
1248 valend
= obj
.value
.name
+ sizeof(obj
.value
.name
) - 1;
1253 obj
.type
= CUPS_PS_OTHER
;
1254 valptr
= obj
.value
.other
;
1255 valend
= obj
.value
.other
+ sizeof(obj
.value
.other
) - 1;
1260 if (strchr("()<>[]{}/%", *cur
) || isspace(*cur
& 255))
1262 else if (valptr
< valend
)
1271 if (obj
.type
== CUPS_PS_OTHER
)
1273 if (!strcmp(obj
.value
.other
, "true"))
1275 obj
.type
= CUPS_PS_BOOLEAN
;
1276 obj
.value
.boolean
= 1;
1278 else if (!strcmp(obj
.value
.other
, "false"))
1280 obj
.type
= CUPS_PS_BOOLEAN
;
1281 obj
.value
.boolean
= 0;
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
;
1306 * Save the current position in the string and return the new object...
1311 return (push_stack(st
, &obj
));
1316 * 'setpagedevice()' - Simulate the PostScript setpagedevice operator.
1319 static int /* O - 0 on success, -1 on error */
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 */
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 */
1332 * Make sure we have a dictionary on the stack...
1335 if (st
->num_objs
== 0)
1338 obj
= end
= st
->objs
+ st
->num_objs
- 1;
1340 if (obj
->type
!= CUPS_PS_END_DICT
)
1345 while (obj
> st
->objs
)
1347 if (obj
->type
== CUPS_PS_START_DICT
)
1357 * Found the start of the dictionary, empty the stack to this point...
1360 st
->num_objs
= obj
- st
->objs
;
1363 * Now pull /name and value pairs from the dictionary...
1366 DEBUG_puts("setpagedevice: Dictionary:");
1368 for (obj
++; obj
< end
; obj
++)
1374 if (obj
->type
!= CUPS_PS_NAME
)
1377 name
= obj
->value
.name
;
1381 DEBUG_printf(("setpagedevice: /%s ", name
));
1386 * Then grab the value...
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
)
1409 if (obj
[1].type
== CUPS_PS_NUMBER
&& obj
[2].type
== CUPS_PS_NUMBER
&&
1410 obj
[3].type
== CUPS_PS_END_ARRAY
)
1412 h
->HWResolution
[0] = (unsigned)obj
[1].value
.number
;
1413 h
->HWResolution
[1] = (unsigned)obj
[2].value
.number
;
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
;
1427 else if ((!strcmp(name
, "cupsMediaPosition") ||
1428 !strcmp(name
, "MediaPosition")) && obj
->type
== CUPS_PS_NUMBER
)
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.
1435 * All new development should set MediaPosition...
1438 h
->MediaPosition
= (unsigned)obj
->value
.number
;
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
)
1454 if (obj
[1].type
== CUPS_PS_NUMBER
&& obj
[2].type
== CUPS_PS_NUMBER
&&
1455 obj
[3].type
== CUPS_PS_END_ARRAY
)
1457 h
->cupsPageSize
[0] = obj
[1].value
.number
;
1458 h
->cupsPageSize
[1] = obj
[2].value
.number
;
1460 h
->PageSize
[0] = (unsigned)obj
[1].value
.number
;
1461 h
->PageSize
[1] = (unsigned)obj
[2].value
.number
;
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
;
1493 else if (!strcmp(name
, "cupsBorderlessScalingFactor") &&
1494 obj
->type
== CUPS_PS_NUMBER
)
1495 h
->cupsBorderlessScalingFactor
= obj
->value
.number
;
1496 else if (!strncmp(name
, "cupsInteger", 11) && obj
->type
== CUPS_PS_NUMBER
)
1498 if ((i
= atoi(name
+ 11)) < 0 || i
> 15)
1501 h
->cupsInteger
[i
] = (unsigned)obj
->value
.number
;
1503 else if (!strncmp(name
, "cupsReal", 8) && obj
->type
== CUPS_PS_NUMBER
)
1505 if ((i
= atoi(name
+ 8)) < 0 || i
> 15)
1508 h
->cupsReal
[i
] = obj
->value
.number
;
1510 else if (!strncmp(name
, "cupsString", 10) && obj
->type
== CUPS_PS_STRING
)
1512 if ((i
= atoi(name
+ 10)) < 0 || i
> 15)
1515 strlcpy(h
->cupsString
[i
], obj
->value
.string
, sizeof(h
->cupsString
[i
]));
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
));
1529 * Ignore unknown name+value...
1532 DEBUG_printf((" Unknown name (\"%s\") or value...\n", name
));
1534 while (obj
[1].type
!= CUPS_PS_NAME
&& obj
< end
)
1545 * 'DEBUG_object()' - Print an object's value...
1549 DEBUG_object(_cups_ps_obj_t
*obj
) /* I - Object to print */
1554 DEBUG_printf(("/%s\n", obj
->value
.name
));
1557 case CUPS_PS_NUMBER
:
1558 DEBUG_printf(("%g\n", obj
->value
.number
));
1561 case CUPS_PS_STRING
:
1562 DEBUG_printf(("(%s)\n", obj
->value
.string
));
1565 case CUPS_PS_BOOLEAN
:
1566 if (obj
->value
.boolean
)
1569 DEBUG_puts("false");
1576 case CUPS_PS_START_ARRAY
:
1580 case CUPS_PS_END_ARRAY
:
1584 case CUPS_PS_START_DICT
:
1588 case CUPS_PS_END_DICT
:
1592 case CUPS_PS_START_PROC
:
1596 case CUPS_PS_END_PROC
:
1600 case CUPS_PS_CLEARTOMARK
:
1601 DEBUG_puts("--cleartomark--");
1605 DEBUG_puts("--copy--");
1609 DEBUG_puts("--dup--");
1612 case CUPS_PS_INDEX
:
1613 DEBUG_puts("--index--");
1617 DEBUG_puts("--pop--");
1621 DEBUG_puts("--roll--");
1624 case CUPS_PS_SETPAGEDEVICE
:
1625 DEBUG_puts("--setpagedevice--");
1628 case CUPS_PS_STOPPED
:
1629 DEBUG_puts("--stopped--");
1632 case CUPS_PS_OTHER
:
1633 DEBUG_printf(("--%s--\n", obj
->value
.other
));
1640 * 'DEBUG_stack()' - Print a stack...
1644 DEBUG_stack(_cups_ps_stack_t
*st
) /* I - Stack */
1646 int c
; /* Looping var */
1647 _cups_ps_obj_t
*obj
; /* Current object on stack */
1650 for (obj
= st
->objs
, c
= st
->num_objs
; c
> 0; c
--, obj
++)
1657 * End of "$Id: interpret.c 7852 2008-08-21 04:19:45Z mike $".