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ppd-emit.c
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ppd-emit.c
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/*
* PPD code emission routines for CUPS.
*
* Copyright 2007-2019 by Apple Inc.
* Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
* Licensed under Apache License v2.0. See the file "LICENSE" for more
* information.
*
* PostScript is a trademark of Adobe Systems, Inc.
*/
/*
* Include necessary headers...
*/
#include "cups-private.h"
#include "debug-internal.h"
#include "ppd.h"
#if defined(_WIN32) || defined(__EMX__)
# include <io.h>
#else
# include <unistd.h>
#endif /* _WIN32 || __EMX__ */
/*
* Local functions...
*/
static int ppd_compare_cparams(ppd_cparam_t *a, ppd_cparam_t *b);
static void ppd_handle_media(ppd_file_t *ppd);
/*
* Local globals...
*/
static const char ppd_custom_code[] =
"pop pop pop\n"
"<</PageSize[5 -2 roll]/ImagingBBox null>>setpagedevice\n";
/*
* 'ppdCollect()' - Collect all marked options that reside in the specified
* section.
*
* The choices array should be freed using @code free@ when you are
* finished with it.
*/
int /* O - Number of options marked */
ppdCollect(ppd_file_t *ppd, /* I - PPD file data */
ppd_section_t section, /* I - Section to collect */
ppd_choice_t ***choices) /* O - Pointers to choices */
{
return (ppdCollect2(ppd, section, 0.0, choices));
}
/*
* 'ppdCollect2()' - Collect all marked options that reside in the
* specified section and minimum order.
*
* The choices array should be freed using @code free@ when you are
* finished with it.
*
* @since CUPS 1.2/macOS 10.5@
*/
int /* O - Number of options marked */
ppdCollect2(ppd_file_t *ppd, /* I - PPD file data */
ppd_section_t section, /* I - Section to collect */
float min_order, /* I - Minimum OrderDependency value */
ppd_choice_t ***choices) /* O - Pointers to choices */
{
ppd_choice_t *c; /* Current choice */
ppd_section_t csection; /* Current section */
float corder; /* Current OrderDependency value */
int count; /* Number of choices collected */
ppd_choice_t **collect; /* Collected choices */
float *orders; /* Collected order values */
DEBUG_printf(("ppdCollect2(ppd=%p, section=%d, min_order=%f, choices=%p)",
ppd, section, min_order, choices));
if (!ppd || !choices)
{
if (choices)
*choices = NULL;
return (0);
}
/*
* Allocate memory for up to N selected choices...
*/
count = 0;
if ((collect = calloc(sizeof(ppd_choice_t *),
(size_t)cupsArrayCount(ppd->marked))) == NULL)
{
*choices = NULL;
return (0);
}
if ((orders = calloc(sizeof(float), (size_t)cupsArrayCount(ppd->marked))) == NULL)
{
*choices = NULL;
free(collect);
return (0);
}
/*
* Loop through all options and add choices as needed...
*/
for (c = (ppd_choice_t *)cupsArrayFirst(ppd->marked);
c;
c = (ppd_choice_t *)cupsArrayNext(ppd->marked))
{
csection = c->option->section;
corder = c->option->order;
if (!strcmp(c->choice, "Custom"))
{
ppd_attr_t *attr; /* NonUIOrderDependency value */
float aorder; /* Order value */
char asection[17], /* Section name */
amain[PPD_MAX_NAME + 1],
aoption[PPD_MAX_NAME];
/* *CustomFoo and True */
for (attr = ppdFindAttr(ppd, "NonUIOrderDependency", NULL);
attr;
attr = ppdFindNextAttr(ppd, "NonUIOrderDependency", NULL))
if (attr->value &&
sscanf(attr->value, "%f%16s%41s%40s", &aorder, asection, amain,
aoption) == 4 &&
!strncmp(amain, "*Custom", 7) &&
!strcmp(amain + 7, c->option->keyword) && !strcmp(aoption, "True"))
{
/*
* Use this NonUIOrderDependency...
*/
corder = aorder;
if (!strcmp(asection, "DocumentSetup"))
csection = PPD_ORDER_DOCUMENT;
else if (!strcmp(asection, "ExitServer"))
csection = PPD_ORDER_EXIT;
else if (!strcmp(asection, "JCLSetup"))
csection = PPD_ORDER_JCL;
else if (!strcmp(asection, "PageSetup"))
csection = PPD_ORDER_PAGE;
else if (!strcmp(asection, "Prolog"))
csection = PPD_ORDER_PROLOG;
else
csection = PPD_ORDER_ANY;
break;
}
}
if (csection == section && corder >= min_order)
{
collect[count] = c;
orders[count] = corder;
count ++;
}
}
/*
* If we have more than 1 marked choice, sort them...
*/
if (count > 1)
{
int i, j; /* Looping vars */
for (i = 0; i < (count - 1); i ++)
for (j = i + 1; j < count; j ++)
if (orders[i] > orders[j])
{
c = collect[i];
corder = orders[i];
collect[i] = collect[j];
orders[i] = orders[j];
collect[j] = c;
orders[j] = corder;
}
}
free(orders);
DEBUG_printf(("2ppdCollect2: %d marked choices...", count));
/*
* Return the array and number of choices; if 0, free the array since
* it isn't needed.
*/
if (count > 0)
{
*choices = collect;
return (count);
}
else
{
*choices = NULL;
free(collect);
return (0);
}
}
/*
* 'ppdEmit()' - Emit code for marked options to a file.
*/
int /* O - 0 on success, -1 on failure */
ppdEmit(ppd_file_t *ppd, /* I - PPD file record */
FILE *fp, /* I - File to write to */
ppd_section_t section) /* I - Section to write */
{
return (ppdEmitAfterOrder(ppd, fp, section, 0, 0.0));
}
/*
* 'ppdEmitAfterOrder()' - Emit a subset of the code for marked options to a file.
*
* When "limit" is non-zero, this function only emits options whose
* OrderDependency value is greater than or equal to "min_order".
*
* When "limit" is zero, this function is identical to ppdEmit().
*
* @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on failure */
ppdEmitAfterOrder(
ppd_file_t *ppd, /* I - PPD file record */
FILE *fp, /* I - File to write to */
ppd_section_t section, /* I - Section to write */
int limit, /* I - Non-zero to use min_order */
float min_order) /* I - Lowest OrderDependency */
{
char *buffer; /* Option code */
int status; /* Return status */
/*
* Range check input...
*/
if (!ppd || !fp)
return (-1);
/*
* Get the string...
*/
buffer = ppdEmitString(ppd, section, limit ? min_order : 0.0f);
/*
* Write it as needed and return...
*/
if (buffer)
{
status = fputs(buffer, fp) < 0 ? -1 : 0;
free(buffer);
}
else
status = 0;
return (status);
}
/*
* 'ppdEmitFd()' - Emit code for marked options to a file.
*/
int /* O - 0 on success, -1 on failure */
ppdEmitFd(ppd_file_t *ppd, /* I - PPD file record */
int fd, /* I - File to write to */
ppd_section_t section) /* I - Section to write */
{
char *buffer, /* Option code */
*bufptr; /* Pointer into code */
size_t buflength; /* Length of option code */
ssize_t bytes; /* Bytes written */
int status; /* Return status */
/*
* Range check input...
*/
if (!ppd || fd < 0)
return (-1);
/*
* Get the string...
*/
buffer = ppdEmitString(ppd, section, 0.0);
/*
* Write it as needed and return...
*/
if (buffer)
{
buflength = strlen(buffer);
bufptr = buffer;
bytes = 0;
while (buflength > 0)
{
#ifdef _WIN32
if ((bytes = (ssize_t)write(fd, bufptr, (unsigned)buflength)) < 0)
#else
if ((bytes = write(fd, bufptr, buflength)) < 0)
#endif /* _WIN32 */
{
if (errno == EAGAIN || errno == EINTR)
continue;
break;
}
buflength -= (size_t)bytes;
bufptr += bytes;
}
status = bytes < 0 ? -1 : 0;
free(buffer);
}
else
status = 0;
return (status);
}
/*
* 'ppdEmitJCL()' - Emit code for JCL options to a file.
*/
int /* O - 0 on success, -1 on failure */
ppdEmitJCL(ppd_file_t *ppd, /* I - PPD file record */
FILE *fp, /* I - File to write to */
int job_id, /* I - Job ID */
const char *user, /* I - Username */
const char *title) /* I - Title */
{
char *ptr; /* Pointer into JCL string */
char temp[65], /* Local title string */
displaymsg[33]; /* Local display string */
/*
* Range check the input...
*/
if (!ppd || !ppd->jcl_begin || !ppd->jcl_ps)
return (0);
/*
* See if the printer supports HP PJL...
*/
if (!strncmp(ppd->jcl_begin, "\033%-12345X@", 10))
{
/*
* This printer uses HP PJL commands for output; filter the output
* so that we only have a single "@PJL JOB" command in the header...
*
* To avoid bugs in the PJL implementation of certain vendors' products
* (Xerox in particular), we add a dummy "@PJL" command at the beginning
* of the PJL commands to initialize PJL processing.
*/
ppd_attr_t *charset; /* PJL charset */
ppd_attr_t *display; /* PJL display command */
if ((charset = ppdFindAttr(ppd, "cupsPJLCharset", NULL)) != NULL)
{
if (!charset->value || _cups_strcasecmp(charset->value, "UTF-8"))
charset = NULL;
}
if ((display = ppdFindAttr(ppd, "cupsPJLDisplay", NULL)) != NULL)
{
if (!display->value)
display = NULL;
}
fputs("\033%-12345X@PJL\n", fp);
for (ptr = ppd->jcl_begin + 9; *ptr;)
if (!strncmp(ptr, "@PJL JOB", 8))
{
/*
* Skip job command...
*/
for (;*ptr; ptr ++)
if (*ptr == '\n')
break;
if (*ptr)
ptr ++;
}
else
{
/*
* Copy line...
*/
for (;*ptr; ptr ++)
{
putc(*ptr, fp);
if (*ptr == '\n')
break;
}
if (*ptr)
ptr ++;
}
/*
* Clean up the job title...
*/
if (!title)
title = "Unknown";
if ((ptr = strrchr(title, '/')) != NULL)
{
/*
* Only show basename of file path...
*/
title = ptr + 1;
}
if (!strncmp(title, "smbprn.", 7))
{
/*
* Skip leading smbprn.######## from Samba jobs...
*/
for (title += 7; *title && isdigit(*title & 255); title ++);
while (_cups_isspace(*title))
title ++;
if ((ptr = strstr(title, " - ")) != NULL)
{
/*
* Skip application name in "Some Application - Title of job"...
*/
title = ptr + 3;
}
}
/*
* Replace double quotes with single quotes and UTF-8 characters with
* question marks so that the title does not cause a PJL syntax error.
*/
strlcpy(temp, title, sizeof(temp));
for (ptr = temp; *ptr; ptr ++)
if (*ptr == '\"')
*ptr = '\'';
else if (!charset && (*ptr & 128))
*ptr = '?';
/*
* CUPS STR #3125: Long PJL JOB NAME causes problems with some printers
*
* Generate the display message, truncating at 32 characters + nul to avoid
* issues with some printer's PJL implementations...
*/
if (!user)
user = "anonymous";
snprintf(displaymsg, sizeof(displaymsg), "%d %s %s", job_id, user, temp);
/*
* Send PJL JOB and PJL RDYMSG commands before we enter PostScript mode...
*/
if (display && strcmp(display->value, "job"))
fprintf(fp, "@PJL JOB NAME = \"%s\"\n", temp);
else if (display && !strcmp(display->value, "rdymsg"))
fprintf(fp, "@PJL RDYMSG DISPLAY = \"%s\"\n", displaymsg);
else
fprintf(fp, "@PJL JOB NAME = \"%s\" DISPLAY = \"%s\"\n", temp,
displaymsg);
/*
* Replace double quotes with single quotes and UTF-8 characters with
* question marks so that the user does not cause a PJL syntax error.
*/
strlcpy(temp, user, sizeof(temp));
for (ptr = temp; *ptr; ptr ++)
if (*ptr == '\"')
*ptr = '\'';
else if (!charset && (*ptr & 128))
*ptr = '?';
fprintf(fp, "@PJL SET USERNAME = \"%s\"\n", temp);
}
else
fputs(ppd->jcl_begin, fp);
ppdEmit(ppd, fp, PPD_ORDER_JCL);
fputs(ppd->jcl_ps, fp);
return (0);
}
/*
* 'ppdEmitJCLEnd()' - Emit JCLEnd code to a file.
*
* @since CUPS 1.2/macOS 10.5@
*/
int /* O - 0 on success, -1 on failure */
ppdEmitJCLEnd(ppd_file_t *ppd, /* I - PPD file record */
FILE *fp) /* I - File to write to */
{
/*
* Range check the input...
*/
if (!ppd)
return (0);
if (!ppd->jcl_end)
{
if (ppd->num_filters == 0)
putc(0x04, fp);
return (0);
}
/*
* See if the printer supports HP PJL...
*/
if (!strncmp(ppd->jcl_end, "\033%-12345X@", 10))
{
/*
* This printer uses HP PJL commands for output; filter the output
* so that we only have a single "@PJL JOB" command in the header...
*
* To avoid bugs in the PJL implementation of certain vendors' products
* (Xerox in particular), we add a dummy "@PJL" command at the beginning
* of the PJL commands to initialize PJL processing.
*/
fputs("\033%-12345X@PJL\n", fp);
fputs("@PJL RDYMSG DISPLAY = \"\"\n", fp);
fputs(ppd->jcl_end + 9, fp);
}
else
fputs(ppd->jcl_end, fp);
return (0);
}
/*
* 'ppdEmitString()' - Get a string containing the code for marked options.
*
* When "min_order" is greater than zero, this function only includes options
* whose OrderDependency value is greater than or equal to "min_order".
* Otherwise, all options in the specified section are included in the
* returned string.
*
* The return string is allocated on the heap and should be freed using
* @code free@ when you are done with it.
*
* @since CUPS 1.2/macOS 10.5@
*/
char * /* O - String containing option code or @code NULL@ if there is no option code */
ppdEmitString(ppd_file_t *ppd, /* I - PPD file record */
ppd_section_t section, /* I - Section to write */
float min_order) /* I - Lowest OrderDependency */
{
int i, j, /* Looping vars */
count; /* Number of choices */
ppd_choice_t **choices; /* Choices */
ppd_size_t *size; /* Custom page size */
ppd_coption_t *coption; /* Custom option */
ppd_cparam_t *cparam; /* Custom parameter */
size_t bufsize; /* Size of string buffer needed */
char *buffer, /* String buffer */
*bufptr, /* Pointer into buffer */
*bufend; /* End of buffer */
struct lconv *loc; /* Locale data */
DEBUG_printf(("ppdEmitString(ppd=%p, section=%d, min_order=%f)",
ppd, section, min_order));
/*
* Range check input...
*/
if (!ppd)
return (NULL);
/*
* Use PageSize or PageRegion as required...
*/
ppd_handle_media(ppd);
/*
* Collect the options we need to emit...
*/
if ((count = ppdCollect2(ppd, section, min_order, &choices)) == 0)
return (NULL);
/*
* Count the number of bytes that are required to hold all of the
* option code...
*/
for (i = 0, bufsize = 1; i < count; i ++)
{
if (section == PPD_ORDER_JCL)
{
if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
(coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
!= NULL)
{
/*
* Add space to account for custom parameter substitution...
*/
for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
cparam;
cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
{
switch (cparam->type)
{
case PPD_CUSTOM_UNKNOWN :
break;
case PPD_CUSTOM_CURVE :
case PPD_CUSTOM_INVCURVE :
case PPD_CUSTOM_POINTS :
case PPD_CUSTOM_REAL :
case PPD_CUSTOM_INT :
bufsize += 10;
break;
case PPD_CUSTOM_PASSCODE :
case PPD_CUSTOM_PASSWORD :
case PPD_CUSTOM_STRING :
if (cparam->current.custom_string)
bufsize += strlen(cparam->current.custom_string);
break;
}
}
}
}
else if (section != PPD_ORDER_EXIT)
{
bufsize += 3; /* [{\n */
if ((!_cups_strcasecmp(choices[i]->option->keyword, "PageSize") ||
!_cups_strcasecmp(choices[i]->option->keyword, "PageRegion")) &&
!_cups_strcasecmp(choices[i]->choice, "Custom"))
{
DEBUG_puts("2ppdEmitString: Custom size set!");
bufsize += 37; /* %%BeginFeature: *CustomPageSize True\n */
bufsize += 50; /* Five 9-digit numbers + newline */
}
else if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
(coption = ppdFindCustomOption(ppd,
choices[i]->option->keyword))
!= NULL)
{
bufsize += 23 + strlen(choices[i]->option->keyword) + 6;
/* %%BeginFeature: *Customkeyword True\n */
for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
cparam;
cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
{
switch (cparam->type)
{
case PPD_CUSTOM_UNKNOWN :
break;
case PPD_CUSTOM_CURVE :
case PPD_CUSTOM_INVCURVE :
case PPD_CUSTOM_POINTS :
case PPD_CUSTOM_REAL :
case PPD_CUSTOM_INT :
bufsize += 10;
break;
case PPD_CUSTOM_PASSCODE :
case PPD_CUSTOM_PASSWORD :
case PPD_CUSTOM_STRING :
bufsize += 3;
if (cparam->current.custom_string)
bufsize += 4 * strlen(cparam->current.custom_string);
break;
}
}
}
else
bufsize += 17 + strlen(choices[i]->option->keyword) + 1 +
strlen(choices[i]->choice) + 1;
/* %%BeginFeature: *keyword choice\n */
bufsize += 13; /* %%EndFeature\n */
bufsize += 22; /* } stopped cleartomark\n */
}
if (choices[i]->code)
bufsize += strlen(choices[i]->code) + 1;
else
bufsize += strlen(ppd_custom_code);
}
/*
* Allocate memory...
*/
DEBUG_printf(("2ppdEmitString: Allocating %d bytes for string...",
(int)bufsize));
if ((buffer = calloc(1, bufsize)) == NULL)
{
free(choices);
return (NULL);
}
bufend = buffer + bufsize - 1;
loc = localeconv();
/*
* Copy the option code to the buffer...
*/
for (i = 0, bufptr = buffer; i < count; i ++, bufptr += strlen(bufptr))
if (section == PPD_ORDER_JCL)
{
if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
choices[i]->code &&
(coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
!= NULL)
{
/*
* Handle substitutions in custom JCL options...
*/
char *cptr; /* Pointer into code */
int pnum; /* Parameter number */
for (cptr = choices[i]->code; *cptr && bufptr < bufend;)
{
if (*cptr == '\\')
{
cptr ++;
if (isdigit(*cptr & 255))
{
/*
* Substitute parameter...
*/
pnum = *cptr++ - '0';
while (isdigit(*cptr & 255))
pnum = pnum * 10 + *cptr++ - '0';
for (cparam = (ppd_cparam_t *)cupsArrayFirst(coption->params);
cparam;
cparam = (ppd_cparam_t *)cupsArrayNext(coption->params))
if (cparam->order == pnum)
break;
if (cparam)
{
switch (cparam->type)
{
case PPD_CUSTOM_UNKNOWN :
break;
case PPD_CUSTOM_CURVE :
case PPD_CUSTOM_INVCURVE :
case PPD_CUSTOM_POINTS :
case PPD_CUSTOM_REAL :
bufptr = _cupsStrFormatd(bufptr, bufend,
cparam->current.custom_real,
loc);
break;
case PPD_CUSTOM_INT :
snprintf(bufptr, (size_t)(bufend - bufptr), "%d", cparam->current.custom_int);
bufptr += strlen(bufptr);
break;
case PPD_CUSTOM_PASSCODE :
case PPD_CUSTOM_PASSWORD :
case PPD_CUSTOM_STRING :
if (cparam->current.custom_string)
{
strlcpy(bufptr, cparam->current.custom_string, (size_t)(bufend - bufptr));
bufptr += strlen(bufptr);
}
break;
}
}
}
else if (*cptr)
*bufptr++ = *cptr++;
}
else
*bufptr++ = *cptr++;
}
}
else if (choices[i]->code)
{
/*
* Otherwise just copy the option code directly...
*/
strlcpy(bufptr, choices[i]->code, (size_t)(bufend - bufptr + 1));
bufptr += strlen(bufptr);
}
}
else if (section != PPD_ORDER_EXIT)
{
/*
* Add wrapper commands to prevent printer errors for unsupported
* options...
*/
strlcpy(bufptr, "[{\n", (size_t)(bufend - bufptr + 1));
bufptr += 3;
/*
* Send DSC comments with option...
*/
DEBUG_printf(("2ppdEmitString: Adding code for %s=%s...",
choices[i]->option->keyword, choices[i]->choice));
if ((!_cups_strcasecmp(choices[i]->option->keyword, "PageSize") ||
!_cups_strcasecmp(choices[i]->option->keyword, "PageRegion")) &&
!_cups_strcasecmp(choices[i]->choice, "Custom"))
{
/*
* Variable size; write out standard size options, using the
* parameter positions defined in the PPD file...
*/
ppd_attr_t *attr; /* PPD attribute */
int pos, /* Position of custom value */
orientation; /* Orientation to use */
float values[5]; /* Values for custom command */
strlcpy(bufptr, "%%BeginFeature: *CustomPageSize True\n", (size_t)(bufend - bufptr + 1));
bufptr += 37;
size = ppdPageSize(ppd, "Custom");
memset(values, 0, sizeof(values));
if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize", "Width")) != NULL)
{
pos = atoi(attr->value) - 1;
if (pos < 0 || pos > 4)
pos = 0;
}
else
pos = 0;
values[pos] = size->width;
if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize", "Height")) != NULL)
{
pos = atoi(attr->value) - 1;
if (pos < 0 || pos > 4)
pos = 1;
}
else
pos = 1;
values[pos] = size->length;
/*
* According to the Adobe PPD specification, an orientation of 1
* will produce a print that comes out upside-down with the X
* axis perpendicular to the direction of feed, which is exactly
* what we want to be consistent with non-PS printers.
*
* We could also use an orientation of 3 to produce output that
* comes out rightside-up (this is the default for many large format
* printer PPDs), however for consistency we will stick with the
* value 1.
*
* If we wanted to get fancy, we could use orientations of 0 or
* 2 and swap the width and length, however we don't want to get
* fancy, we just want it to work consistently.
*
* The orientation value is range limited by the Orientation
* parameter definition, so certain non-PS printer drivers that
* only support an Orientation of 0 will get the value 0 as
* expected.
*/
orientation = 1;
if ((attr = ppdFindAttr(ppd, "ParamCustomPageSize",
"Orientation")) != NULL)
{
int min_orient, max_orient; /* Minimum and maximum orientations */
if (sscanf(attr->value, "%d%*s%d%d", &pos, &min_orient,
&max_orient) != 3)
pos = 4;
else
{
pos --;
if (pos < 0 || pos > 4)
pos = 4;
if (orientation > max_orient)
orientation = max_orient;
else if (orientation < min_orient)
orientation = min_orient;
}
}
else
pos = 4;
values[pos] = (float)orientation;
for (pos = 0; pos < 5; pos ++)
{
bufptr = _cupsStrFormatd(bufptr, bufend, values[pos], loc);
*bufptr++ = '\n';
}
if (!choices[i]->code)
{
/*
* This can happen with certain buggy PPD files that don't include
* a CustomPageSize command sequence... We just use a generic
* Level 2 command sequence...
*/
strlcpy(bufptr, ppd_custom_code, (size_t)(bufend - bufptr + 1));
bufptr += strlen(bufptr);
}
}
else if (!_cups_strcasecmp(choices[i]->choice, "Custom") &&
(coption = ppdFindCustomOption(ppd, choices[i]->option->keyword))
!= NULL)
{
/*
* Custom option...
*/
const char *s; /* Pointer into string value */
cups_array_t *params; /* Parameters in the correct output order */