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3433 lines
91 KiB
3433 lines
91 KiB
15 years ago
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/* Copyright (C) 2000-2001, Ghostgum Software Pty Ltd. All rights reserved.
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This file is part of GSview.
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This file is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
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to anyone for the consequences of using it or for whether it serves any
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particular purpose or works at all, unless he says so in writing. Refer
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to the GNU General Public Licence for full details.
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Everyone is granted permission to copy, modify and redistribute this
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file, but only under the conditions described in the GNU General
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Public Licence. A copy of this license is supposed to have been given
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to you along with this file so you can know your rights and
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responsibilities. It should be in a file named COPYING. Among other
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things, the copyright notice and this notice must be preserved on all
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copies.
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*/
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/* $Id$ */
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/* dscparse.c - DSC parser */
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/*
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* This is a DSC parser, based on the DSC 3.0 spec,
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* with a few DSC 2.1 additions for page size.
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*
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* Current limitations:
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* %%+ may be used after any comment in the comment or trailer,
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* but is currently only supported by
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* %%DocumentMedia
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*
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* DSC 2.1 additions (discontinued in DSC 3.0):
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* %%DocumentPaperColors:
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* %%DocumentPaperForms:
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* %%DocumentPaperSizes:
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* %%DocumentPaperWeights:
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* %%PaperColor: (ignored)
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* %%PaperForm: (ignored)
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* %%PaperSize:
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* %%PaperWeight: (ignored)
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*
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* Other additions for defaults or page section
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% %%ViewingOrientation: xx xy yx yy
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*/
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#include <stdio.h> /* for sprintf(), not file I/O */
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#define MAXSTR 256
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#include "dscparse.h"
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/* Macros for comparing string literals
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* For maximum speed, the length of the second macro argument is
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* computed at compile time.
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* THE SECOND MACRO ARGUMENT MUST BE A STRING LITERAL.
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*/
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#define COMPARE(p,str) (strncmp((const char *)(p), (str), sizeof(str)-1)==0)
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#define IS_DSC(line, str) (COMPARE((line), (str)))
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/* Macros for comparing the first one or two characters */
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#define IS_WHITE(ch) (((ch)==' ') || ((ch)=='\t'))
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#define IS_EOL(ch) (((ch)=='\r') || ((ch)=='\n'))
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#define IS_WHITE_OR_EOL(ch) (IS_WHITE(ch) || IS_EOL(ch))
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#define IS_BLANK(str) (IS_EOL(str[0]))
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#define NOT_DSC_LINE(str) (((str)[0]!='%') || ((str)[1]!='%'))
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/* Macros for document offset to start and end of line */
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#define DSC_START(dsc) ((dsc)->data_offset + (dsc)->data_index - (dsc)->line_length)
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#define DSC_END(dsc) ((dsc)->data_offset + (dsc)->data_index)
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/* dsc_scan_SECTION() functions return one of
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* CDSC_ERROR, CDSC_OK, CDSC_NOTDSC
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* or one of the following
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*/
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/* The line should be passed on to the next section parser. */
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#define CDSC_PROPAGATE 10
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/* If document is DOS EPS and we haven't read 30 bytes, ask for more. */
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#define CDSC_NEEDMORE 11
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template<class T>
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inline T min (T a, T b) { return a < b ? a : b; }
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/* local prototypes */
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dsc_private void * dsc_memalloc(P2(CDSC *dsc, size_t size));
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dsc_private void dsc_memfree(P2(CDSC*dsc, void *ptr));
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dsc_private CDSC * dsc_init2(P1(CDSC *dsc));
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dsc_private void dsc_reset(P1(CDSC *dsc));
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dsc_private void dsc_section_join(P3(unsigned long begin, unsigned long *pend, unsigned long **pplast));
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dsc_private int dsc_read_line(P1(CDSC *dsc));
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dsc_private int dsc_read_doseps(P1(CDSC *dsc));
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dsc_private char * dsc_alloc_string(P3(CDSC *dsc, const char *str, int len));
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dsc_private char * dsc_add_line(P3(CDSC *dsc, const char *line, unsigned int len));
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dsc_private char * dsc_copy_string(P5(char *str, unsigned int slen,
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char *line, unsigned int len, unsigned int *offset));
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dsc_private GSDWORD dsc_get_dword(P1(const unsigned char *buf));
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dsc_private GSWORD dsc_get_word(P1(const unsigned char *buf));
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dsc_private int dsc_get_int(P3(const char *line, unsigned int len, unsigned int *offset));
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dsc_private float dsc_get_real(P3(const char *line, unsigned int len,
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unsigned int *offset));
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dsc_private int dsc_stricmp(P2(const char *s, const char *t));
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dsc_private void dsc_unknown(P1(CDSC *dsc));
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dsc_private GSBOOL dsc_is_section(char *line);
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dsc_private int dsc_parse_pages(P1(CDSC *dsc));
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dsc_private int dsc_parse_bounding_box(P3(CDSC *dsc, CDSCBBOX** pbbox, int offset));
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dsc_private int dsc_parse_float_bounding_box(P3(CDSC *dsc, CDSCFBBOX** pfbbox, int offset));
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dsc_private int dsc_parse_orientation(P3(CDSC *dsc, unsigned int *porientation,
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int offset));
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dsc_private int dsc_parse_order(P1(CDSC *dsc));
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dsc_private int dsc_parse_media(P2(CDSC *dsc, const CDSCMEDIA **page_media));
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dsc_private int dsc_parse_document_media(P1(CDSC *dsc));
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dsc_private int dsc_parse_viewing_orientation(P2(CDSC *dsc, CDSCCTM **pctm));
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dsc_private int dsc_parse_page(P1(CDSC *dsc));
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dsc_private void dsc_save_line(P1(CDSC *dsc));
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dsc_private int dsc_scan_type(P1(CDSC *dsc));
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dsc_private int dsc_scan_comments(P1(CDSC *dsc));
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dsc_private int dsc_scan_preview(P1(CDSC *dsc));
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dsc_private int dsc_scan_defaults(P1(CDSC *dsc));
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dsc_private int dsc_scan_prolog(P1(CDSC *dsc));
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dsc_private int dsc_scan_setup(P1(CDSC *dsc));
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dsc_private int dsc_scan_page(P1(CDSC *dsc));
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dsc_private int dsc_scan_trailer(P1(CDSC *dsc));
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dsc_private int dsc_error(P4(CDSC *dsc, unsigned int explanation,
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char *line, unsigned int line_len));
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/* DSC error reporting */
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dsc_private const int dsc_severity[] = {
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_BBOX */
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_EARLY_TRAILER */
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_EARLY_EOF */
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CDSC_ERROR_ERROR, /* CDSC_MESSAGE_PAGE_IN_TRAILER */
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CDSC_ERROR_ERROR, /* CDSC_MESSAGE_PAGE_ORDINAL */
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CDSC_ERROR_ERROR, /* CDSC_MESSAGE_PAGES_WRONG */
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CDSC_ERROR_ERROR, /* CDSC_MESSAGE_EPS_NO_BBOX */
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CDSC_ERROR_ERROR, /* CDSC_MESSAGE_EPS_PAGES */
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_NO_MEDIA */
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_ATEND */
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CDSC_ERROR_INFORM, /* CDSC_MESSAGE_DUP_COMMENT */
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CDSC_ERROR_INFORM, /* CDSC_MESSAGE_DUP_TRAILER */
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_BEGIN_END */
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CDSC_ERROR_INFORM, /* CDSC_MESSAGE_BAD_SECTION */
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CDSC_ERROR_INFORM, /* CDSC_MESSAGE_LONG_LINE */
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CDSC_ERROR_WARN, /* CDSC_MESSAGE_INCORRECT_USAGE */
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0
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};
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#define DSC_MAX_ERROR ((sizeof(dsc_severity) / sizeof(int))-2)
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const CDSCMEDIA dsc_known_media[CDSC_KNOWN_MEDIA] = {
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/* These sizes taken from Ghostscript gs_statd.ps */
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{"11x17", 792, 1224, 0, NULL, NULL, NULL},
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{"A0", 2380, 3368, 0, NULL, NULL, NULL},
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{"A1", 1684, 2380, 0, NULL, NULL, NULL},
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{"A2", 1190, 1684, 0, NULL, NULL, NULL},
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{"A3", 842, 1190, 0, NULL, NULL, NULL},
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{"A4", 595, 842, 0, NULL, NULL, NULL},
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{"A5", 421, 595, 0, NULL, NULL, NULL},
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{"A6", 297, 421, 0, NULL, NULL, NULL},
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{"A7", 210, 297, 0, NULL, NULL, NULL},
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{"A8", 148, 210, 0, NULL, NULL, NULL},
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{"A9", 105, 148, 0, NULL, NULL, NULL},
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{"A10", 74, 105, 0, NULL, NULL, NULL},
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{"B0", 2836, 4008, 0, NULL, NULL, NULL},
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{"B1", 2004, 2836, 0, NULL, NULL, NULL},
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{"B2", 1418, 2004, 0, NULL, NULL, NULL},
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{"B3", 1002, 1418, 0, NULL, NULL, NULL},
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{"B4", 709, 1002, 0, NULL, NULL, NULL}, /* ISO, but not Adobe standard */
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{"B5", 501, 709, 0, NULL, NULL, NULL}, /* ISO, but not Adobe standard */
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{"B6", 354, 501, 0, NULL, NULL, NULL},
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{"C0", 2600, 3677, 0, NULL, NULL, NULL},
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{"C1", 1837, 2600, 0, NULL, NULL, NULL},
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{"C2", 1298, 1837, 0, NULL, NULL, NULL},
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{"C3", 918, 1298, 0, NULL, NULL, NULL},
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{"C4", 649, 918, 0, NULL, NULL, NULL},
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{"C5", 459, 649, 0, NULL, NULL, NULL},
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{"C6", 323, 459, 0, NULL, NULL, NULL},
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{"Ledger", 1224, 792, 0, NULL, NULL, NULL},
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{"Legal", 612, 1008, 0, NULL, NULL, NULL},
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{"Letter", 612, 792, 0, NULL, NULL, NULL},
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{"Note", 612, 792, 0, NULL, NULL, NULL},
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// ISO and JIS B sizes are different....
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{"jisb0", 2916, 4128, 0, NULL, NULL, NULL},
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{"jisb1", 2064, 2916, 0, NULL, NULL, NULL},
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{"jisb2", 1458, 2064, 0, NULL, NULL, NULL},
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{"jisb3", 1032, 1458, 0, NULL, NULL, NULL},
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{"jisb4", 729, 1032, 0, NULL, NULL, NULL},
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{"jisb5", 516, 729, 0, NULL, NULL, NULL},
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{"jisb6", 363, 516, 0, NULL, NULL, NULL},
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// U.S. CAD standard paper sizes
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{"archE", 2592, 3456, 0, NULL, NULL, NULL},
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{"archD", 1728, 2592, 0, NULL, NULL, NULL},
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{"archC", 1296, 1728, 0, NULL, NULL, NULL},
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{"archB", 864, 1296, 0, NULL, NULL, NULL},
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{"archA", 648, 864, 0, NULL, NULL, NULL},
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// Other paper sizes
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{"flsa", 612, 936, 0, NULL, NULL, NULL}, /* U.S. foolscap */
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{"flse", 612, 936, 0, NULL, NULL, NULL}, /* European foolscap */
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{"halfletter", 396, 612, 0, NULL, NULL, NULL},
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{NULL, 0, 0, 0, NULL, NULL, NULL}
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};
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/* parser state */
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enum CDSC_SCAN_SECTION {
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scan_none = 0,
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scan_comments = 1,
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scan_pre_preview = 2,
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scan_preview = 3,
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scan_pre_defaults = 4,
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scan_defaults = 5,
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scan_pre_prolog = 6,
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scan_prolog = 7,
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scan_pre_setup = 8,
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scan_setup = 9,
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scan_pre_pages = 10,
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scan_pages = 11,
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scan_pre_trailer = 12,
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scan_trailer = 13,
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scan_eof = 14
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};
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static const char * const dsc_scan_section_name[15] = {
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"Type", "Comments",
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"pre-Preview", "Preview",
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"pre-Defaults", "Defaults",
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"pre-Prolog", "Prolog",
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"pre-Setup", "Setup",
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"pre-Page", "Page",
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"pre-Trailer", "Trailer",
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"EOF"
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};
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/******************************************************************/
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/* Public functions */
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/******************************************************************/
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/* constructor */
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CDSC *
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dsc_init(void *caller_data)
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{
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CDSC *dsc = (CDSC *)malloc(sizeof(CDSC));
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if (dsc == NULL)
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return NULL;
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memset(dsc, 0, sizeof(CDSC));
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dsc->caller_data = caller_data;
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return dsc_init2(dsc);
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}
|
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|
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/* constructor, with caller supplied memalloc */
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||
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CDSC *
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||
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dsc_init_with_alloc(
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|
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void *caller_data,
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||
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void *(*memalloc)(size_t size, void *closure_data),
|
||
|
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void (*memfree)(void *ptr, void *closure_data),
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|
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void *closure_data)
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||
|
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{
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CDSC *dsc = (CDSC *)memalloc(sizeof(CDSC), closure_data);
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if (dsc == NULL)
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return NULL;
|
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memset(dsc, 0, sizeof(CDSC));
|
||
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dsc->caller_data = caller_data;
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||
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dsc->memalloc = memalloc;
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dsc->memfree = memfree;
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dsc->mem_closure_data = closure_data;
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return dsc_init2(dsc);
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}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
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/* destructor */
|
||
|
|
void
|
||
|
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dsc_free(CDSC *dsc)
|
||
|
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{
|
||
|
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if (dsc == NULL)
|
||
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return;
|
||
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dsc_reset(dsc);
|
||
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dsc_memfree(dsc, dsc);
|
||
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}
|
||
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|
|
||
|
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|
||
|
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/* Tell DSC parser how long document will be, to allow ignoring
|
||
|
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* of early %%Trailer and %%EOF. This is optional.
|
||
|
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*/
|
||
|
|
void
|
||
|
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dsc_set_length(CDSC *dsc, unsigned long len)
|
||
|
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{
|
||
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dsc->file_length = len;
|
||
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}
|
||
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|
||
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/* Process a buffer containing DSC comments and PostScript */
|
||
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/* Return value is < 0 for error, >=0 for OK.
|
||
|
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* CDSC_ERROR
|
||
|
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* CDSC_OK
|
||
|
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* CDSC_NOTDSC (DSC will be ignored)
|
||
|
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* other values indicate the last DSC comment read
|
||
|
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*/
|
||
|
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int
|
||
|
|
dsc_scan_data(CDSC *dsc, const char *data, int length)
|
||
|
|
{
|
||
|
|
int bytes_read;
|
||
|
|
int code = 0;
|
||
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|
||
|
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if (dsc == NULL)
|
||
|
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return CDSC_ERROR;
|
||
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|
||
|
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if (dsc->id == CDSC_NOTDSC)
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
if (dsc->eof)
|
||
|
|
return CDSC_OK; /* ignore */
|
||
|
|
|
||
|
|
if (length == 0) {
|
||
|
|
/* EOF, so process what remains */
|
||
|
|
dsc->eof = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
do {
|
||
|
|
if (dsc->id == CDSC_NOTDSC)
|
||
|
|
break;
|
||
|
|
|
||
|
|
if (length != 0) {
|
||
|
|
/* move existing data if needed */
|
||
|
|
if (dsc->data_length > CDSC_DATA_LENGTH/2) {
|
||
|
|
memmove(dsc->data, dsc->data + dsc->data_index,
|
||
|
|
dsc->data_length - dsc->data_index);
|
||
|
|
dsc->data_offset += dsc->data_index;
|
||
|
|
dsc->data_length -= dsc->data_index;
|
||
|
|
dsc->data_index = 0;
|
||
|
|
}
|
||
|
|
/* append to buffer */
|
||
|
|
bytes_read = min(length, (int)(CDSC_DATA_LENGTH - dsc->data_length));
|
||
|
|
memcpy(dsc->data + dsc->data_length, data, bytes_read);
|
||
|
|
dsc->data_length += bytes_read;
|
||
|
|
data += bytes_read;
|
||
|
|
length -= bytes_read;
|
||
|
|
}
|
||
|
|
if (dsc->scan_section == scan_none) {
|
||
|
|
code = dsc_scan_type(dsc);
|
||
|
|
if (code == CDSC_NEEDMORE) {
|
||
|
|
/* need more characters before we can identify type */
|
||
|
|
code = CDSC_OK;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
dsc->id = code;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (code == CDSC_NOTDSC) {
|
||
|
|
dsc->id = CDSC_NOTDSC;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
while ((code = dsc_read_line(dsc)) > 0) {
|
||
|
|
if (dsc->id == CDSC_NOTDSC)
|
||
|
|
break;
|
||
|
|
if (dsc->doseps_end &&
|
||
|
|
(dsc->data_offset + dsc->data_index > dsc->doseps_end)) {
|
||
|
|
/* have read past end of DOS EPS PostScript section */
|
||
|
|
return CDSC_OK; /* ignore */
|
||
|
|
}
|
||
|
|
if (dsc->eof)
|
||
|
|
return CDSC_OK;
|
||
|
|
if (dsc->skip_document)
|
||
|
|
continue; /* embedded document */
|
||
|
|
if (dsc->skip_lines)
|
||
|
|
continue; /* embedded lines */
|
||
|
|
if (IS_DSC(dsc->line, "%%BeginData:"))
|
||
|
|
continue;
|
||
|
|
if (IS_DSC(dsc->line, "%%BeginBinary:"))
|
||
|
|
continue;
|
||
|
|
if (IS_DSC(dsc->line, "%%EndDocument"))
|
||
|
|
continue;
|
||
|
|
if (IS_DSC(dsc->line, "%%EndData"))
|
||
|
|
continue;
|
||
|
|
if (IS_DSC(dsc->line, "%%EndBinary"))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
do {
|
||
|
|
switch (dsc->scan_section) {
|
||
|
|
case scan_comments:
|
||
|
|
code = dsc_scan_comments(dsc);
|
||
|
|
break;
|
||
|
|
case scan_pre_preview:
|
||
|
|
case scan_preview:
|
||
|
|
code = dsc_scan_preview(dsc);
|
||
|
|
break;
|
||
|
|
case scan_pre_defaults:
|
||
|
|
case scan_defaults:
|
||
|
|
code = dsc_scan_defaults(dsc);
|
||
|
|
break;
|
||
|
|
case scan_pre_prolog:
|
||
|
|
case scan_prolog:
|
||
|
|
code = dsc_scan_prolog(dsc);
|
||
|
|
break;
|
||
|
|
case scan_pre_setup:
|
||
|
|
case scan_setup:
|
||
|
|
code = dsc_scan_setup(dsc);
|
||
|
|
break;
|
||
|
|
case scan_pre_pages:
|
||
|
|
case scan_pages:
|
||
|
|
code = dsc_scan_page(dsc);
|
||
|
|
break;
|
||
|
|
case scan_pre_trailer:
|
||
|
|
case scan_trailer:
|
||
|
|
code = dsc_scan_trailer(dsc);
|
||
|
|
break;
|
||
|
|
case scan_eof:
|
||
|
|
code = CDSC_OK;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
/* invalid state */
|
||
|
|
code = CDSC_ERROR;
|
||
|
|
}
|
||
|
|
/* repeat if line is start of next section */
|
||
|
|
} while (code == CDSC_PROPAGATE);
|
||
|
|
|
||
|
|
/* if DOS EPS header not complete, ask for more */
|
||
|
|
if (code == CDSC_NEEDMORE) {
|
||
|
|
code = CDSC_OK;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (code == CDSC_NOTDSC) {
|
||
|
|
dsc->id = CDSC_NOTDSC;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} while (length != 0);
|
||
|
|
|
||
|
|
return (code < 0) ? code : dsc->id;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Tidy up from incorrect DSC comments */
|
||
|
|
int
|
||
|
|
dsc_fixup(CDSC *dsc)
|
||
|
|
{
|
||
|
|
unsigned int i;
|
||
|
|
char buf[32];
|
||
|
|
unsigned long *last;
|
||
|
|
|
||
|
|
if (dsc->id == CDSC_NOTDSC)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* flush last partial line */
|
||
|
|
dsc_scan_data(dsc, NULL, 0);
|
||
|
|
|
||
|
|
/* Fix DSC error: code between %%EndSetup and %%Page */
|
||
|
|
if (dsc->page_count && (dsc->page[0].begin != dsc->endsetup)
|
||
|
|
&& (dsc->endsetup != dsc->beginsetup)) {
|
||
|
|
dsc->endsetup = dsc->page[0].begin;
|
||
|
|
dsc_debug_print(dsc, "Warning: code included between setup and first page\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Last page contained a false trailer, */
|
||
|
|
/* so extend last page to start of trailer */
|
||
|
|
if (dsc->page_count && (dsc->begintrailer != 0) &&
|
||
|
|
(dsc->page[dsc->page_count-1].end != dsc->begintrailer)) {
|
||
|
|
dsc_debug_print(dsc, "Ignoring earlier misplaced trailer\n");
|
||
|
|
dsc_debug_print(dsc, "and extending last page to start of trailer\n");
|
||
|
|
dsc->page[dsc->page_count-1].end = dsc->begintrailer;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Join up all sections.
|
||
|
|
* There might be extra code between them, or we might have
|
||
|
|
* missed including the \n which followed \r.
|
||
|
|
*/
|
||
|
|
last = &dsc->endcomments;
|
||
|
|
dsc_section_join(dsc->beginpreview, &dsc->endpreview, &last);
|
||
|
|
dsc_section_join(dsc->begindefaults, &dsc->enddefaults, &last);
|
||
|
|
dsc_section_join(dsc->beginprolog, &dsc->endprolog, &last);
|
||
|
|
dsc_section_join(dsc->beginsetup, &dsc->endsetup, &last);
|
||
|
|
for (i=0; i<dsc->page_count; i++)
|
||
|
|
dsc_section_join(dsc->page[i].begin, &dsc->page[i].end, &last);
|
||
|
|
if (dsc->begintrailer)
|
||
|
|
*last = dsc->begintrailer;
|
||
|
|
|
||
|
|
if ((dsc->page_pages == 0) && (dsc->page_count == 1)) {
|
||
|
|
/* don't flag an error if %%Pages absent but one %%Page found */
|
||
|
|
/* adjust incorrect page count */
|
||
|
|
dsc->page_pages = dsc->page_count;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Warnings and Errors that we can now identify */
|
||
|
|
if ((dsc->page_count != dsc->page_pages)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_PAGES_WRONG, NULL, 0);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* adjust incorrect page count */
|
||
|
|
dsc->page_pages = dsc->page_count;
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break;;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dsc->epsf && (dsc->bbox == (CDSCBBOX *)NULL)) {
|
||
|
|
/* EPS files MUST include a BoundingBox */
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_EPS_NO_BBOX, NULL, 0);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* Assume that it is EPS */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* Is NOT an EPS file */
|
||
|
|
dsc->epsf = FALSE;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dsc->epsf && ((dsc->page_count > 1) || (dsc->page_pages > 1))) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_EPS_PAGES, NULL, 0);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* Is an EPS file */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* Is NOT an EPS file */
|
||
|
|
dsc->epsf = FALSE;
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((dsc->media_count == 1) && (dsc->page_media == NULL)) {
|
||
|
|
/* if one only media was specified, and default page media */
|
||
|
|
/* was not specified, assume that default is the only media. */
|
||
|
|
dsc->page_media = dsc->media[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((dsc->media_count != 0) && (dsc->page_media == NULL)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_NO_MEDIA, NULL, 0);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* default media is first listed */
|
||
|
|
dsc->page_media = dsc->media[0];
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* No default media */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* make sure all pages have a label */
|
||
|
|
for (i=0; i<dsc->page_count; i++) {
|
||
|
|
if (strlen(dsc->page[i].label) == 0) {
|
||
|
|
sprintf(buf, "%d", i+1);
|
||
|
|
if ((dsc->page[i].label = dsc_alloc_string(dsc, buf, strlen(buf)))
|
||
|
|
== (char *)NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Install a function to be used for displaying messages about
|
||
|
|
* DSC errors and warnings, and to request advice from user.
|
||
|
|
* Installing an error function is optional.
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
dsc_set_error_function(CDSC *dsc,
|
||
|
|
int (*fn)(P5(void *caller_data, CDSC *dsc,
|
||
|
|
unsigned int explanation, const char *line, unsigned int line_len)))
|
||
|
|
{
|
||
|
|
dsc->dsc_error_fn = fn;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Install a function for printing debug messages */
|
||
|
|
/* This is optional */
|
||
|
|
void
|
||
|
|
dsc_set_debug_function(CDSC *dsc,
|
||
|
|
void (*debug_fn)(P2(void *caller_data, const char *str)))
|
||
|
|
{
|
||
|
|
dsc->debug_print_fn = debug_fn;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Doesn't need to be public for PostScript documents */
|
||
|
|
/* Made public so GSview can add pages when processing PDF files */
|
||
|
|
int
|
||
|
|
dsc_add_page(CDSC *dsc, int ordinal, char *label)
|
||
|
|
{
|
||
|
|
dsc->page[dsc->page_count].ordinal = ordinal;
|
||
|
|
dsc->page[dsc->page_count].label =
|
||
|
|
dsc_alloc_string(dsc, label, strlen(label)+1);
|
||
|
|
dsc->page[dsc->page_count].begin = 0;
|
||
|
|
dsc->page[dsc->page_count].end = 0;
|
||
|
|
dsc->page[dsc->page_count].orientation = CDSC_ORIENT_UNKNOWN;
|
||
|
|
dsc->page[dsc->page_count].media = NULL;
|
||
|
|
dsc->page[dsc->page_count].bbox = NULL;
|
||
|
|
dsc->page[dsc->page_count].viewing_orientation = NULL;
|
||
|
|
|
||
|
|
dsc->page_count++;
|
||
|
|
if (dsc->page_count >= dsc->page_chunk_length) {
|
||
|
|
CDSCPAGE *new_page = (CDSCPAGE *)dsc_memalloc(dsc,
|
||
|
|
(CDSC_PAGE_CHUNK+dsc->page_count) * sizeof(CDSCPAGE));
|
||
|
|
if (new_page == NULL)
|
||
|
|
return CDSC_ERROR; /* out of memory */
|
||
|
|
memcpy(new_page, dsc->page,
|
||
|
|
dsc->page_count * sizeof(CDSCPAGE));
|
||
|
|
dsc_memfree(dsc, dsc->page);
|
||
|
|
dsc->page= new_page;
|
||
|
|
dsc->page_chunk_length = CDSC_PAGE_CHUNK+dsc->page_count;
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Doesn't need to be public for PostScript documents */
|
||
|
|
/* Made public so GSview can store PDF MediaBox */
|
||
|
|
int
|
||
|
|
dsc_add_media(CDSC *dsc, CDSCMEDIA *media)
|
||
|
|
{
|
||
|
|
CDSCMEDIA **newmedia_array;
|
||
|
|
CDSCMEDIA *newmedia;
|
||
|
|
|
||
|
|
/* extend media array */
|
||
|
|
newmedia_array = (CDSCMEDIA **)dsc_memalloc(dsc,
|
||
|
|
(dsc->media_count + 1) * sizeof(CDSCMEDIA *));
|
||
|
|
if (newmedia_array == NULL)
|
||
|
|
return CDSC_ERROR; /* out of memory */
|
||
|
|
if (dsc->media != NULL) {
|
||
|
|
memcpy(newmedia_array, dsc->media,
|
||
|
|
dsc->media_count * sizeof(CDSCMEDIA *));
|
||
|
|
dsc_memfree(dsc, dsc->media);
|
||
|
|
}
|
||
|
|
dsc->media = newmedia_array;
|
||
|
|
|
||
|
|
/* allocate new media */
|
||
|
|
newmedia = dsc->media[dsc->media_count] =
|
||
|
|
(CDSCMEDIA *)dsc_memalloc(dsc, sizeof(CDSCMEDIA));
|
||
|
|
if (newmedia == NULL)
|
||
|
|
return CDSC_ERROR; /* out of memory */
|
||
|
|
newmedia->name = NULL;
|
||
|
|
newmedia->width = 595.0;
|
||
|
|
newmedia->height = 842.0;
|
||
|
|
newmedia->weight = 80.0;
|
||
|
|
newmedia->colour = NULL;
|
||
|
|
newmedia->type = NULL;
|
||
|
|
newmedia->mediabox = NULL;
|
||
|
|
|
||
|
|
dsc->media_count++;
|
||
|
|
|
||
|
|
if (media->name) {
|
||
|
|
newmedia->name = dsc_alloc_string(dsc, media->name,
|
||
|
|
strlen(media->name));
|
||
|
|
if (newmedia->name == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
}
|
||
|
|
newmedia->width = media->width;
|
||
|
|
newmedia->height = media->height;
|
||
|
|
newmedia->weight = media->weight;
|
||
|
|
if (media->colour) {
|
||
|
|
newmedia->colour = dsc_alloc_string(dsc, media->colour,
|
||
|
|
strlen(media->colour));
|
||
|
|
if (newmedia->colour == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
}
|
||
|
|
if (media->type) {
|
||
|
|
newmedia->type = dsc_alloc_string(dsc, media->type,
|
||
|
|
strlen(media->type));
|
||
|
|
if (newmedia->type == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
}
|
||
|
|
newmedia->mediabox = NULL;
|
||
|
|
|
||
|
|
if (media->mediabox) {
|
||
|
|
newmedia->mediabox = (CDSCBBOX *)dsc_memalloc(dsc, sizeof(CDSCBBOX));
|
||
|
|
if (newmedia->mediabox == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
*newmedia->mediabox = *media->mediabox;
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Doesn't need to be public for PostScript documents */
|
||
|
|
/* Made public so GSview can store PDF CropBox */
|
||
|
|
int
|
||
|
|
dsc_set_page_bbox(CDSC *dsc, unsigned int page_number,
|
||
|
|
int llx, int lly, int urx, int ury)
|
||
|
|
{
|
||
|
|
CDSCBBOX *bbox;
|
||
|
|
if (page_number >= dsc->page_count)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
bbox = dsc->page[page_number].bbox;
|
||
|
|
if (bbox == NULL)
|
||
|
|
dsc->page[page_number].bbox = bbox =
|
||
|
|
(CDSCBBOX *)dsc_memalloc(dsc, sizeof(CDSCBBOX));
|
||
|
|
if (bbox == NULL)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
bbox->llx = llx;
|
||
|
|
bbox->lly = lly;
|
||
|
|
bbox->urx = urx;
|
||
|
|
bbox->ury = ury;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************/
|
||
|
|
/* Private functions below here. */
|
||
|
|
/******************************************************************/
|
||
|
|
|
||
|
|
dsc_private void *
|
||
|
|
dsc_memalloc(CDSC *dsc, size_t size)
|
||
|
|
{
|
||
|
|
if (dsc->memalloc)
|
||
|
|
return dsc->memalloc(size, dsc->mem_closure_data);
|
||
|
|
return malloc(size);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private void
|
||
|
|
dsc_memfree(CDSC*dsc, void *ptr)
|
||
|
|
{
|
||
|
|
if (dsc->memfree)
|
||
|
|
dsc->memfree(ptr, dsc->mem_closure_data);
|
||
|
|
else
|
||
|
|
free(ptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* private constructor */
|
||
|
|
dsc_private CDSC *
|
||
|
|
dsc_init2(CDSC *dsc)
|
||
|
|
{
|
||
|
|
dsc_reset(dsc);
|
||
|
|
|
||
|
|
dsc->string_head = (CDSCSTRING *)dsc_memalloc(dsc, sizeof(CDSCSTRING));
|
||
|
|
if (dsc->string_head == NULL) {
|
||
|
|
dsc_free(dsc);
|
||
|
|
return NULL; /* no memory */
|
||
|
|
}
|
||
|
|
dsc->string = dsc->string_head;
|
||
|
|
dsc->string->next = NULL;
|
||
|
|
dsc->string->data = (char *)dsc_memalloc(dsc, CDSC_STRING_CHUNK);
|
||
|
|
if (dsc->string->data == NULL) {
|
||
|
|
dsc_free(dsc);
|
||
|
|
return NULL; /* no memory */
|
||
|
|
}
|
||
|
|
dsc->string->index = 0;
|
||
|
|
dsc->string->length = CDSC_STRING_CHUNK;
|
||
|
|
|
||
|
|
dsc->page = (CDSCPAGE *)dsc_memalloc(dsc, CDSC_PAGE_CHUNK * sizeof(CDSCPAGE));
|
||
|
|
if (dsc->page == NULL) {
|
||
|
|
dsc_free(dsc);
|
||
|
|
return NULL; /* no memory */
|
||
|
|
}
|
||
|
|
dsc->page_chunk_length = CDSC_PAGE_CHUNK;
|
||
|
|
dsc->page_count = 0;
|
||
|
|
|
||
|
|
dsc->line = NULL;
|
||
|
|
dsc->data_length = 0;
|
||
|
|
dsc->data_index = dsc->data_length;
|
||
|
|
|
||
|
|
return dsc;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private void
|
||
|
|
dsc_reset(CDSC *dsc)
|
||
|
|
{
|
||
|
|
unsigned int i;
|
||
|
|
/* Clear public members */
|
||
|
|
dsc->dsc = FALSE;
|
||
|
|
dsc->ctrld = FALSE;
|
||
|
|
dsc->pjl = FALSE;
|
||
|
|
dsc->epsf = FALSE;
|
||
|
|
dsc->pdf = FALSE;
|
||
|
|
dsc->epsf = FALSE;
|
||
|
|
dsc->preview = CDSC_NOPREVIEW;
|
||
|
|
dsc->dsc_version = NULL; /* stored in dsc->string */
|
||
|
|
dsc->language_level = 0;
|
||
|
|
dsc->document_data = CDSC_DATA_UNKNOWN;
|
||
|
|
dsc->begincomments = 0;
|
||
|
|
dsc->endcomments = 0;
|
||
|
|
dsc->beginpreview = 0;
|
||
|
|
dsc->endpreview = 0;
|
||
|
|
dsc->begindefaults = 0;
|
||
|
|
dsc->enddefaults = 0;
|
||
|
|
dsc->beginprolog = 0;
|
||
|
|
dsc->endprolog = 0;
|
||
|
|
dsc->beginsetup = 0;
|
||
|
|
dsc->endsetup = 0;
|
||
|
|
dsc->begintrailer = 0;
|
||
|
|
dsc->endtrailer = 0;
|
||
|
|
|
||
|
|
for (i=0; i<dsc->page_count; i++) {
|
||
|
|
/* page media is pointer to an element of media or dsc_known_media */
|
||
|
|
/* do not free it. */
|
||
|
|
|
||
|
|
if (dsc->page[i].bbox)
|
||
|
|
dsc_memfree(dsc, dsc->page[i].bbox);
|
||
|
|
if (dsc->page[i].viewing_orientation)
|
||
|
|
dsc_memfree(dsc, dsc->page[i].viewing_orientation);
|
||
|
|
}
|
||
|
|
if (dsc->page)
|
||
|
|
dsc_memfree(dsc, dsc->page);
|
||
|
|
dsc->page = NULL;
|
||
|
|
|
||
|
|
dsc->page_count = 0;
|
||
|
|
dsc->page_pages = 0;
|
||
|
|
dsc->page_order = CDSC_ORDER_UNKNOWN;
|
||
|
|
dsc->page_orientation = CDSC_ORIENT_UNKNOWN;
|
||
|
|
if (dsc->viewing_orientation)
|
||
|
|
dsc_memfree(dsc, dsc->viewing_orientation);
|
||
|
|
dsc->viewing_orientation = NULL;
|
||
|
|
|
||
|
|
if (dsc->media) {
|
||
|
|
for (i=0; i<dsc->media_count; i++) {
|
||
|
|
if (dsc->media[i]) {
|
||
|
|
if (dsc->media[i]->mediabox)
|
||
|
|
dsc_memfree(dsc, dsc->media[i]->mediabox);
|
||
|
|
dsc_memfree(dsc, dsc->media[i]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
dsc_memfree(dsc, dsc->media);
|
||
|
|
}
|
||
|
|
dsc->media_count = 0;
|
||
|
|
dsc->media = NULL;
|
||
|
|
|
||
|
|
/* page_media is pointer to an element of media or dsc_known_media */
|
||
|
|
/* do not free it. */
|
||
|
|
dsc->page_media = NULL;
|
||
|
|
|
||
|
|
if (dsc->bbox)
|
||
|
|
dsc_memfree(dsc, dsc->bbox);
|
||
|
|
dsc->bbox = NULL;
|
||
|
|
if (dsc->page_bbox)
|
||
|
|
dsc_memfree(dsc, dsc->page_bbox);
|
||
|
|
dsc->page_bbox = NULL;
|
||
|
|
if (dsc->doseps)
|
||
|
|
dsc_memfree(dsc, dsc->doseps);
|
||
|
|
dsc->doseps = NULL;
|
||
|
|
|
||
|
|
dsc->dsc_title = NULL;
|
||
|
|
dsc->dsc_creator = NULL;
|
||
|
|
dsc->dsc_date = NULL;
|
||
|
|
dsc->dsc_for = NULL;
|
||
|
|
|
||
|
|
|
||
|
|
dsc->max_error = DSC_MAX_ERROR;
|
||
|
|
dsc->severity = dsc_severity;
|
||
|
|
|
||
|
|
/* Clear private members */
|
||
|
|
/* Don't touch dsc->caller_data */
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
dsc->scan_section = scan_none;
|
||
|
|
dsc->doseps_end = 0;
|
||
|
|
dsc->page_chunk_length = 0;
|
||
|
|
dsc->file_length = 0;
|
||
|
|
dsc->skip_document = 0;
|
||
|
|
dsc->skip_bytes = 0;
|
||
|
|
dsc->skip_lines = 0;
|
||
|
|
dsc->skip_pjl = 0;
|
||
|
|
dsc->begin_font_count = 0;
|
||
|
|
dsc->begin_feature_count = 0;
|
||
|
|
dsc->begin_resource_count = 0;
|
||
|
|
dsc->begin_procset_count = 0;
|
||
|
|
|
||
|
|
dsc->data_length = 0;
|
||
|
|
dsc->data_index = 0;
|
||
|
|
dsc->data_offset = 0;
|
||
|
|
|
||
|
|
dsc->eof = 0;
|
||
|
|
|
||
|
|
dsc->line = 0;
|
||
|
|
dsc->line_length = 0;
|
||
|
|
dsc->eol = 0;
|
||
|
|
dsc->last_cr = FALSE;
|
||
|
|
dsc->line_count = 1;
|
||
|
|
dsc->long_line = FALSE;
|
||
|
|
memset(dsc->last_line, 0, sizeof(dsc->last_line));
|
||
|
|
|
||
|
|
dsc->string = dsc->string_head;
|
||
|
|
while (dsc->string != (CDSCSTRING *)NULL) {
|
||
|
|
if (dsc->string->data)
|
||
|
|
dsc_memfree(dsc, dsc->string->data);
|
||
|
|
dsc->string_head = dsc->string;
|
||
|
|
dsc->string = dsc->string->next;
|
||
|
|
dsc_memfree(dsc, dsc->string_head);
|
||
|
|
}
|
||
|
|
dsc->string_head = NULL;
|
||
|
|
dsc->string = NULL;
|
||
|
|
|
||
|
|
/* don't touch caller functions */
|
||
|
|
|
||
|
|
/* public data */
|
||
|
|
if (dsc->hires_bbox)
|
||
|
|
dsc_memfree(dsc, dsc->hires_bbox);
|
||
|
|
dsc->hires_bbox = NULL;
|
||
|
|
if (dsc->crop_box)
|
||
|
|
dsc_memfree(dsc, dsc->crop_box);
|
||
|
|
dsc->crop_box = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Join up all sections.
|
||
|
|
* There might be extra code between them, or we might have
|
||
|
|
* missed including the \n which followed \r.
|
||
|
|
* begin is the start of this section
|
||
|
|
* pend is a pointer to the end of this section
|
||
|
|
* pplast is a pointer to a pointer of the end of the previous section
|
||
|
|
*/
|
||
|
|
dsc_private void
|
||
|
|
dsc_section_join(unsigned long begin, unsigned long *pend, unsigned long **pplast)
|
||
|
|
{
|
||
|
|
if (begin)
|
||
|
|
**pplast = begin;
|
||
|
|
if (*pend > begin)
|
||
|
|
*pplast = pend;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* return value is 0 if no line available, or length of line */
|
||
|
|
dsc_private int
|
||
|
|
dsc_read_line(CDSC *dsc)
|
||
|
|
{
|
||
|
|
char *p, *last;
|
||
|
|
dsc->line = NULL;
|
||
|
|
|
||
|
|
if (dsc->eof) {
|
||
|
|
/* return all that remains, even if line incomplete */
|
||
|
|
dsc->line = dsc->data + dsc->data_index;
|
||
|
|
dsc->line_length = dsc->data_length - dsc->data_index;
|
||
|
|
dsc->data_index = dsc->data_length;
|
||
|
|
return dsc->line_length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ignore embedded bytes */
|
||
|
|
if (dsc->skip_bytes) {
|
||
|
|
int cnt = min(dsc->skip_bytes,
|
||
|
|
(int)(dsc->data_length - dsc->data_index));
|
||
|
|
dsc->skip_bytes -= cnt;
|
||
|
|
dsc->data_index += cnt;
|
||
|
|
if (dsc->skip_bytes != 0)
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
do {
|
||
|
|
dsc->line = dsc->data + dsc->data_index;
|
||
|
|
last = dsc->data + dsc->data_length;
|
||
|
|
if (dsc->data_index == dsc->data_length) {
|
||
|
|
dsc->line_length = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
if (dsc->eol) {
|
||
|
|
/* if previous line was complete, increment line count */
|
||
|
|
dsc->line_count++;
|
||
|
|
if (dsc->skip_lines)
|
||
|
|
dsc->skip_lines--;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* skip over \n which followed \r */
|
||
|
|
if (dsc->last_cr && dsc->line[0] == '\n') {
|
||
|
|
dsc->data_index++;
|
||
|
|
dsc->line++;
|
||
|
|
}
|
||
|
|
dsc->last_cr = FALSE;
|
||
|
|
|
||
|
|
/* look for EOL */
|
||
|
|
dsc->eol = FALSE;
|
||
|
|
for (p = dsc->line; p < last; p++) {
|
||
|
|
if (*p == '\r') {
|
||
|
|
p++;
|
||
|
|
if ((p<last) && (*p == '\n'))
|
||
|
|
p++; /* include line feed also */
|
||
|
|
else
|
||
|
|
dsc->last_cr = TRUE; /* we might need to skip \n */
|
||
|
|
dsc->eol = TRUE; /* dsc->line is a complete line */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (*p == '\n') {
|
||
|
|
p++;
|
||
|
|
dsc->eol = TRUE; /* dsc->line is a complete line */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (*p == '\032') { /* MS-DOS Ctrl+Z */
|
||
|
|
dsc->eol = TRUE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (dsc->eol == FALSE) {
|
||
|
|
/* we haven't got a complete line yet */
|
||
|
|
if (dsc->data_length - dsc->data_index < sizeof(dsc->data)/2) {
|
||
|
|
/* buffer is less than half full, ask for some more */
|
||
|
|
dsc->line_length = 0;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
dsc->data_index += dsc->line_length = (p - dsc->line);
|
||
|
|
} while (dsc->skip_lines && dsc->line_length);
|
||
|
|
|
||
|
|
if (dsc->line_length == 0)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if ((dsc->line[0]=='%') && (dsc->line[1]=='%')) {
|
||
|
|
/* handle recursive %%BeginDocument */
|
||
|
|
if ((dsc->skip_document) && dsc->line_length &&
|
||
|
|
COMPARE(dsc->line, "%%EndDocument")) {
|
||
|
|
dsc->skip_document--;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* handle embedded lines or binary data */
|
||
|
|
if (COMPARE(dsc->line, "%%BeginData:")) {
|
||
|
|
/* %%BeginData: <numberof>[ <type> [ <bytesorlines> ] ]
|
||
|
|
* <numberof> ::= <uint> (Lines or physical bytes)
|
||
|
|
* <type> ::= Hex | Binary | ASCII (Type of data)
|
||
|
|
* <bytesorlines> ::= Bytes | Lines (Read in bytes or lines)
|
||
|
|
*/
|
||
|
|
char begindata[MAXSTR+1];
|
||
|
|
int cnt;
|
||
|
|
unsigned int num;
|
||
|
|
const char *numberof, *bytesorlines;
|
||
|
|
if ((num = dsc->line_length) >= sizeof(begindata)-1)
|
||
|
|
num = sizeof(begindata)-1;
|
||
|
|
|
||
|
|
memcpy(begindata, dsc->line, num);
|
||
|
|
begindata[num] = '\0';
|
||
|
|
numberof = strtok(begindata+12, " \r\n");
|
||
|
|
strtok(NULL, " \r\n"); /* dump type */
|
||
|
|
bytesorlines = strtok(NULL, " \r\n");
|
||
|
|
if (bytesorlines == NULL)
|
||
|
|
bytesorlines = "Bytes";
|
||
|
|
|
||
|
|
if ( (numberof == NULL) || (bytesorlines == NULL) ) {
|
||
|
|
/* invalid usage of %%BeginData */
|
||
|
|
/* ignore that we ever saw it */
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_INCORRECT_USAGE,
|
||
|
|
dsc->line, dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
cnt = atoi(numberof);
|
||
|
|
if (cnt) {
|
||
|
|
if (bytesorlines && (dsc_stricmp(bytesorlines, "Lines")==0)) {
|
||
|
|
/* skip cnt lines */
|
||
|
|
if (dsc->skip_lines == 0) {
|
||
|
|
/* we are not already skipping lines */
|
||
|
|
dsc->skip_lines = cnt+1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* byte count doesn't includes \n or \r\n */
|
||
|
|
/* or \r of %%BeginData: */
|
||
|
|
/* skip cnt bytes */
|
||
|
|
if (dsc->skip_bytes == 0) {
|
||
|
|
/* we are not already skipping lines */
|
||
|
|
dsc->skip_bytes = cnt;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (COMPARE(dsc->line, "%%BeginBinary:")) {
|
||
|
|
/* byte count doesn't includes \n or \r\n or \r of %%BeginBinary:*/
|
||
|
|
unsigned long cnt = atoi(dsc->line + 14);
|
||
|
|
if (dsc->skip_bytes == 0) {
|
||
|
|
/* we are not already skipping lines */
|
||
|
|
dsc->skip_bytes = cnt;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((dsc->line[0]=='%') && (dsc->line[1]=='%') &&
|
||
|
|
COMPARE(dsc->line, "%%BeginDocument:") ) {
|
||
|
|
/* Skip over embedded document, recursively */
|
||
|
|
dsc->skip_document++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!dsc->long_line && (dsc->line_length > DSC_LINE_LENGTH)) {
|
||
|
|
dsc_error(dsc, CDSC_MESSAGE_LONG_LINE, dsc->line, dsc->line_length);
|
||
|
|
dsc->long_line = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return dsc->line_length;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Save last DSC line, for use with %%+ */
|
||
|
|
dsc_private void
|
||
|
|
dsc_save_line(CDSC *dsc)
|
||
|
|
{
|
||
|
|
int len = min((size_t) sizeof(dsc->last_line), (size_t) dsc->line_length);
|
||
|
|
memcpy(dsc->last_line, dsc->line, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* display unknown DSC line */
|
||
|
|
dsc_private void
|
||
|
|
dsc_unknown(CDSC *dsc)
|
||
|
|
{
|
||
|
|
if (dsc->debug_print_fn) {
|
||
|
|
char line[DSC_LINE_LENGTH];
|
||
|
|
unsigned int length = min((unsigned)DSC_LINE_LENGTH-1, dsc->line_length);
|
||
|
|
sprintf(line, "Unknown in %s section at line %d:\n ",
|
||
|
|
dsc_scan_section_name[dsc->scan_section], dsc->line_count);
|
||
|
|
dsc_debug_print(dsc, line);
|
||
|
|
strncpy(line, dsc->line, length);
|
||
|
|
line[length] = '\0';
|
||
|
|
dsc_debug_print(dsc, line);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private GSBOOL
|
||
|
|
dsc_is_section(char *line)
|
||
|
|
{
|
||
|
|
if ( !((line[0]=='%') && (line[1]=='%')) )
|
||
|
|
return FALSE;
|
||
|
|
if (IS_DSC(line, "%%BeginPreview"))
|
||
|
|
return TRUE;
|
||
|
|
if (IS_DSC(line, "%%BeginDefaults"))
|
||
|
|
return TRUE;
|
||
|
|
if (IS_DSC(line, "%%BeginProlog"))
|
||
|
|
return TRUE;
|
||
|
|
if (IS_DSC(line, "%%BeginSetup"))
|
||
|
|
return TRUE;
|
||
|
|
if (IS_DSC(line, "%%Page:"))
|
||
|
|
return TRUE;
|
||
|
|
if (IS_DSC(line, "%%Trailer"))
|
||
|
|
return TRUE;
|
||
|
|
if (IS_DSC(line, "%%EOF"))
|
||
|
|
return TRUE;
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private GSDWORD
|
||
|
|
dsc_get_dword(const unsigned char *buf)
|
||
|
|
{
|
||
|
|
GSDWORD dw;
|
||
|
|
dw = (GSDWORD)buf[0];
|
||
|
|
dw += ((GSDWORD)buf[1])<<8;
|
||
|
|
dw += ((GSDWORD)buf[2])<<16;
|
||
|
|
dw += ((GSDWORD)buf[3])<<24;
|
||
|
|
return dw;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private GSWORD
|
||
|
|
dsc_get_word(const unsigned char *buf)
|
||
|
|
{
|
||
|
|
GSWORD w;
|
||
|
|
w = (GSWORD)buf[0];
|
||
|
|
w |= (GSWORD)(buf[1]<<8);
|
||
|
|
return w;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_read_doseps(CDSC *dsc)
|
||
|
|
{
|
||
|
|
unsigned char *line = (unsigned char *)dsc->line;
|
||
|
|
if ((dsc->doseps = (CDSCDOSEPS *)dsc_memalloc(dsc, sizeof(CDSCDOSEPS))) == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
|
||
|
|
dsc->doseps->ps_begin = dsc_get_dword(line+4);
|
||
|
|
dsc->doseps->ps_length = dsc_get_dword(line+8);
|
||
|
|
dsc->doseps->wmf_begin = dsc_get_dword(line+12);
|
||
|
|
dsc->doseps->wmf_length = dsc_get_dword(line+16);
|
||
|
|
dsc->doseps->tiff_begin = dsc_get_dword(line+20);
|
||
|
|
dsc->doseps->tiff_length = dsc_get_dword(line+24);
|
||
|
|
dsc->doseps->checksum = dsc_get_word(line+28);
|
||
|
|
|
||
|
|
dsc->doseps_end = dsc->doseps->ps_begin + dsc->doseps->ps_length;
|
||
|
|
|
||
|
|
/* move data_index backwards to byte after doseps header */
|
||
|
|
dsc->data_index -= dsc->line_length - 30;
|
||
|
|
/* we haven't read a line of PostScript code yet */
|
||
|
|
dsc->line_count = 0;
|
||
|
|
/* skip from current position to start of PostScript section */
|
||
|
|
dsc->skip_bytes = dsc->doseps->ps_begin - 30;
|
||
|
|
|
||
|
|
if (dsc->doseps->tiff_begin)
|
||
|
|
dsc->preview = CDSC_TIFF;
|
||
|
|
if (dsc->doseps->wmf_begin)
|
||
|
|
dsc->preview = CDSC_WMF;
|
||
|
|
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_pages(CDSC *dsc)
|
||
|
|
{
|
||
|
|
int ip, io;
|
||
|
|
unsigned int i;
|
||
|
|
char *p;
|
||
|
|
int n;
|
||
|
|
if ((dsc->page_pages != 0) && (dsc->scan_section == scan_comments)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((dsc->page_pages != 0) && (dsc->scan_section == scan_trailer)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_TRAILER, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break; /* use duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
n = IS_DSC(dsc->line, "%%+") ? 3 : 8;
|
||
|
|
while (IS_WHITE(dsc->line[n]))
|
||
|
|
n++;
|
||
|
|
p = dsc->line + n;
|
||
|
|
if (COMPARE(p, "atend")) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_ATEND, dsc->line, dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* assume (atend) */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "(atend)")) {
|
||
|
|
/* do nothing */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
ip = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
n+=i;
|
||
|
|
dsc->page_pages = ip;
|
||
|
|
io = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
/* DSC 2 uses extra integer to indicate page order */
|
||
|
|
/* DSC 3 uses %%PageOrder: */
|
||
|
|
if (dsc->page_order == CDSC_ORDER_UNKNOWN)
|
||
|
|
switch (io) {
|
||
|
|
case -1:
|
||
|
|
dsc->page_order = CDSC_DESCEND;
|
||
|
|
break;
|
||
|
|
case 0:
|
||
|
|
dsc->page_order = CDSC_SPECIAL;
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
dsc->page_order = CDSC_ASCEND;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_INCORRECT_USAGE, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_bounding_box(CDSC *dsc, CDSCBBOX** pbbox, int offset)
|
||
|
|
{
|
||
|
|
unsigned int i, n;
|
||
|
|
int llx, lly, urx, ury;
|
||
|
|
float fllx, flly, furx, fury;
|
||
|
|
char *p;
|
||
|
|
/* Process first %%BoundingBox: in comments, and last in trailer */
|
||
|
|
if ((*pbbox != NULL) && (dsc->scan_section == scan_comments)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((*pbbox != NULL) && (dsc->scan_section == scan_pages)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((*pbbox != NULL) && (dsc->scan_section == scan_trailer)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_TRAILER, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break; /* use duplicate comments in trailer */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (*pbbox != NULL) {
|
||
|
|
dsc_memfree(dsc, *pbbox);
|
||
|
|
*pbbox = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* should only process first %%BoundingBox: */
|
||
|
|
|
||
|
|
while (IS_WHITE(dsc->line[offset]))
|
||
|
|
offset++;
|
||
|
|
p = dsc->line + offset;
|
||
|
|
|
||
|
|
if (COMPARE(p, "atend")) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_ATEND, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* assume (atend) */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "(atend)")) {
|
||
|
|
/* do nothing */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* llx = */ lly = urx = ury = 0;
|
||
|
|
n = offset;
|
||
|
|
llx = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
lly = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
urx = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
ury = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
*pbbox = (CDSCBBOX *)dsc_memalloc(dsc, sizeof(CDSCBBOX));
|
||
|
|
if (*pbbox == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
(*pbbox)->llx = llx;
|
||
|
|
(*pbbox)->lly = lly;
|
||
|
|
(*pbbox)->urx = urx;
|
||
|
|
(*pbbox)->ury = ury;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_BBOX, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* fllx = */ flly = furx = fury = 0.0;
|
||
|
|
n = offset;
|
||
|
|
n += i;
|
||
|
|
fllx = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
flly = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
furx = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
fury = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
*pbbox = (CDSCBBOX *)dsc_memalloc(dsc, sizeof(CDSCBBOX));
|
||
|
|
if (*pbbox == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
(*pbbox)->llx = (int)fllx;
|
||
|
|
(*pbbox)->lly = (int)flly;
|
||
|
|
(*pbbox)->urx = (int)(furx+0.999);
|
||
|
|
(*pbbox)->ury = (int)(fury+0.999);
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_float_bounding_box(CDSC *dsc, CDSCFBBOX** pbbox, int offset)
|
||
|
|
{
|
||
|
|
unsigned int i, n;
|
||
|
|
float fllx, flly, furx, fury;
|
||
|
|
char *p;
|
||
|
|
/* Process first %%HiResBoundingBox: or %%CropBox: in comments,
|
||
|
|
* and last in trailer.
|
||
|
|
*/
|
||
|
|
if ((*pbbox != NULL) && (dsc->scan_section == scan_comments)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((*pbbox != NULL) && (dsc->scan_section == scan_pages)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((*pbbox != NULL) && (dsc->scan_section == scan_trailer)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_TRAILER, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break; /* use duplicate comments in trailer */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (*pbbox != NULL) {
|
||
|
|
dsc_memfree(dsc, *pbbox);
|
||
|
|
*pbbox = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* should only process first %%BoundingBox: */
|
||
|
|
|
||
|
|
while (IS_WHITE(dsc->line[offset]))
|
||
|
|
offset++;
|
||
|
|
p = dsc->line + offset;
|
||
|
|
|
||
|
|
if (COMPARE(p, "atend")) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_ATEND, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* assume (atend) */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "(atend)")) {
|
||
|
|
/* do nothing */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* fllx = */ flly = furx = fury = 0.0;
|
||
|
|
n = offset;
|
||
|
|
fllx = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
flly = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
furx = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
fury = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
*pbbox = (CDSCFBBOX *)dsc_memalloc(dsc, sizeof(CDSCFBBOX));
|
||
|
|
if (*pbbox == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
(*pbbox)->fllx = fllx;
|
||
|
|
(*pbbox)->flly = flly;
|
||
|
|
(*pbbox)->furx = furx;
|
||
|
|
(*pbbox)->fury = fury;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_orientation(CDSC *dsc, unsigned int *porientation, int offset)
|
||
|
|
{
|
||
|
|
char *p;
|
||
|
|
if ((dsc->page_orientation != CDSC_ORIENT_UNKNOWN) &&
|
||
|
|
(dsc->scan_section == scan_comments)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((dsc->page_orientation != CDSC_ORIENT_UNKNOWN) &&
|
||
|
|
(dsc->scan_section == scan_trailer)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_TRAILER, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break; /* use duplicate comments in header; */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
p = dsc->line + offset;
|
||
|
|
while (IS_WHITE(*p))
|
||
|
|
p++;
|
||
|
|
if (COMPARE(p, "atend")) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_ATEND, dsc->line, dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* assume (atend) */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "(atend)")) {
|
||
|
|
/* do nothing */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "Portrait")) {
|
||
|
|
*porientation = CDSC_PORTRAIT;
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "Landscape")) {
|
||
|
|
*porientation = CDSC_LANDSCAPE;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_order(CDSC *dsc)
|
||
|
|
{
|
||
|
|
char *p;
|
||
|
|
if ((dsc->page_order != CDSC_ORDER_UNKNOWN) &&
|
||
|
|
(dsc->scan_section == scan_comments)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_COMMENT, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
return CDSC_OK; /* ignore duplicate comments in header */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ((dsc->page_order != CDSC_ORDER_UNKNOWN) &&
|
||
|
|
(dsc->scan_section == scan_trailer)) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_DUP_TRAILER, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
break; /* use duplicate comments in trailer */
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
p = dsc->line + (IS_DSC(dsc->line, "%%+") ? 3 : 13);
|
||
|
|
while (IS_WHITE(*p))
|
||
|
|
p++;
|
||
|
|
if (COMPARE(p, "atend")) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_ATEND, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* assume (atend) */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "(atend)")) {
|
||
|
|
/* do nothing */
|
||
|
|
/* we should mark it as deferred */
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "Ascend")) {
|
||
|
|
dsc->page_order = CDSC_ASCEND;
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "Descend")) {
|
||
|
|
dsc->page_order = CDSC_DESCEND;
|
||
|
|
}
|
||
|
|
else if (COMPARE(p, "Special")) {
|
||
|
|
dsc->page_order = CDSC_SPECIAL;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_media(CDSC *dsc, const CDSCMEDIA **page_media)
|
||
|
|
{
|
||
|
|
char media_name[MAXSTR];
|
||
|
|
int n = IS_DSC(dsc->line, "%%+") ? 3 : 12; /* %%PageMedia: */
|
||
|
|
unsigned int i;
|
||
|
|
|
||
|
|
if (dsc_copy_string(media_name, sizeof(media_name)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, NULL)) {
|
||
|
|
for (i=0; i<dsc->media_count; i++) {
|
||
|
|
if (dsc->media[i]->name &&
|
||
|
|
(dsc_stricmp(media_name, dsc->media[i]->name) == 0)) {
|
||
|
|
*page_media = dsc->media[i];
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_document_media(CDSC *dsc)
|
||
|
|
{
|
||
|
|
unsigned int i, n;
|
||
|
|
CDSCMEDIA lmedia;
|
||
|
|
GSBOOL blank_line;
|
||
|
|
|
||
|
|
if (IS_DSC(dsc->line, "%%DocumentMedia:"))
|
||
|
|
n = 16;
|
||
|
|
else if (IS_DSC(dsc->line, "%%+"))
|
||
|
|
n = 3;
|
||
|
|
else
|
||
|
|
return CDSC_ERROR; /* error */
|
||
|
|
|
||
|
|
/* check for blank remainder of line */
|
||
|
|
blank_line = TRUE;
|
||
|
|
for (i=n; i<dsc->line_length; i++) {
|
||
|
|
if (!IS_WHITE_OR_EOL(dsc->line[i])) {
|
||
|
|
blank_line = FALSE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!blank_line) {
|
||
|
|
char name[MAXSTR];
|
||
|
|
char colour[MAXSTR];
|
||
|
|
char type[MAXSTR];
|
||
|
|
lmedia.name = lmedia.colour = lmedia.type = (char *)NULL;
|
||
|
|
lmedia.width = lmedia.height = lmedia.weight = 0;
|
||
|
|
lmedia.mediabox = (CDSCBBOX *)NULL;
|
||
|
|
lmedia.name = dsc_copy_string(name, sizeof(name)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n+=i;
|
||
|
|
if (i)
|
||
|
|
lmedia.width = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n+=i;
|
||
|
|
if (i)
|
||
|
|
lmedia.height = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n+=i;
|
||
|
|
if (i)
|
||
|
|
lmedia.weight = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n+=i;
|
||
|
|
if (i)
|
||
|
|
lmedia.colour = dsc_copy_string(colour, sizeof(colour)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n+=i;
|
||
|
|
if (i)
|
||
|
|
lmedia.type = dsc_copy_string(type, sizeof(type)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
|
||
|
|
if (i==0)
|
||
|
|
dsc_unknown(dsc); /* we didn't get all fields */
|
||
|
|
else {
|
||
|
|
if (dsc_add_media(dsc, &lmedia))
|
||
|
|
return CDSC_ERROR; /* out of memory */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* viewing orientation is believed to be the first four elements of
|
||
|
|
* a CTM matrix
|
||
|
|
*/
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_viewing_orientation(CDSC *dsc, CDSCCTM **pctm)
|
||
|
|
{
|
||
|
|
CDSCCTM ctm;
|
||
|
|
unsigned int i, n;
|
||
|
|
|
||
|
|
if (*pctm != NULL) {
|
||
|
|
dsc_memfree(dsc, *pctm);
|
||
|
|
*pctm = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
n = IS_DSC(dsc->line, "%%+") ? 3 : 21; /* %%ViewingOrientation: */
|
||
|
|
while (IS_WHITE(dsc->line[n]))
|
||
|
|
n++;
|
||
|
|
|
||
|
|
/* ctm.xx = */ ctm.xy = ctm.yx = ctm.yy = 0.0;
|
||
|
|
ctm.xx = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
ctm.xy = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
ctm.yx = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
n += i;
|
||
|
|
if (i)
|
||
|
|
ctm.yy = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i==0) {
|
||
|
|
dsc_unknown(dsc); /* we didn't get all fields */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
*pctm = (CDSCCTM *)dsc_memalloc(dsc, sizeof(CDSCCTM));
|
||
|
|
if (*pctm == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
**pctm = ctm;
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* This is called before dsc_read_line(), since we may
|
||
|
|
* need to skip a binary header which contains a new line
|
||
|
|
* character
|
||
|
|
*/
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_type(CDSC *dsc)
|
||
|
|
{
|
||
|
|
unsigned char *p;
|
||
|
|
unsigned char *line = (unsigned char *)(dsc->data + dsc->data_index);
|
||
|
|
int length = dsc->data_length - dsc->data_index;
|
||
|
|
|
||
|
|
/* Types that should be known:
|
||
|
|
* DSC
|
||
|
|
* EPSF
|
||
|
|
* PJL + any of above
|
||
|
|
* ^D + any of above
|
||
|
|
* DOS EPS
|
||
|
|
* PDF
|
||
|
|
* non-DSC
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* First process any non PostScript headers */
|
||
|
|
/* At this stage we do not have a complete line */
|
||
|
|
|
||
|
|
if (length == 0)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
|
||
|
|
if (dsc->skip_pjl) {
|
||
|
|
/* skip until first PostScript comment */
|
||
|
|
while (length >= 2) {
|
||
|
|
while (length && !IS_EOL(line[0])) {
|
||
|
|
/* skip until EOL character */
|
||
|
|
line++;
|
||
|
|
dsc->data_index++;
|
||
|
|
length--;
|
||
|
|
}
|
||
|
|
while ((length >= 2) && IS_EOL(line[0]) && IS_EOL(line[1])) {
|
||
|
|
/* skip until EOL followed by non-EOL */
|
||
|
|
line++;
|
||
|
|
dsc->data_index++;
|
||
|
|
length--;
|
||
|
|
}
|
||
|
|
if (length < 2)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
|
||
|
|
if (IS_EOL(line[0]) && line[1]=='%') {
|
||
|
|
line++;
|
||
|
|
dsc->data_index++;
|
||
|
|
length--;
|
||
|
|
dsc->skip_pjl = FALSE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* line++; */
|
||
|
|
dsc->data_index++;
|
||
|
|
/* length--; */
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (dsc->skip_pjl)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (length == 0)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
|
||
|
|
if (line[0] == '\004') {
|
||
|
|
line++;
|
||
|
|
dsc->data_index++;
|
||
|
|
length--;
|
||
|
|
dsc->ctrld = TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (line[0] == '\033') {
|
||
|
|
/* possibly PJL */
|
||
|
|
if (length < 9)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
if (COMPARE(line, "\033%-12345X")) {
|
||
|
|
dsc->skip_pjl = TRUE; /* skip until first PostScript comment */
|
||
|
|
dsc->pjl = TRUE;
|
||
|
|
dsc->data_index += 9;
|
||
|
|
return dsc_scan_type(dsc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((line[0]==0xc5) && (length < 4))
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
if ((line[0]==0xc5) && (line[1]==0xd0) &&
|
||
|
|
(line[2]==0xd3) && (line[3]==0xc6) ) {
|
||
|
|
/* id is "EPSF" with bit 7 set */
|
||
|
|
/* read DOS EPS header, then ignore all bytes until the PS section */
|
||
|
|
if (length < 30)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
dsc->line = (char *)line;
|
||
|
|
if (dsc_read_doseps(dsc))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (length < 2)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
if ((line[0] == '%') && (line[1] == 'P')) {
|
||
|
|
if (length < 5)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
if (COMPARE(line, "%PDF-")) {
|
||
|
|
dsc->pdf = TRUE;
|
||
|
|
dsc->scan_section = scan_comments;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Finally process PostScript headers */
|
||
|
|
|
||
|
|
if (dsc_read_line(dsc) <= 0)
|
||
|
|
return CDSC_NEEDMORE;
|
||
|
|
|
||
|
|
dsc->dsc_version = dsc_add_line(dsc, dsc->line, dsc->line_length);
|
||
|
|
if (COMPARE(dsc->line, "%!PS-Adobe")) {
|
||
|
|
dsc->dsc = TRUE;
|
||
|
|
dsc->begincomments = DSC_START(dsc);
|
||
|
|
if (dsc->dsc_version == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
p = (unsigned char *)dsc->line + 14;
|
||
|
|
while (IS_WHITE(*p))
|
||
|
|
p++;
|
||
|
|
if (COMPARE(p, "EPSF-"))
|
||
|
|
dsc->epsf = TRUE;
|
||
|
|
dsc->scan_section = scan_comments;
|
||
|
|
return CDSC_PSADOBE;
|
||
|
|
}
|
||
|
|
if (COMPARE(dsc->line, "%!")) {
|
||
|
|
dsc->scan_section = scan_comments;
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->scan_section = scan_comments;
|
||
|
|
return CDSC_NOTDSC; /* unrecognised */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_comments(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Comments section ends at */
|
||
|
|
/* %%EndComments */
|
||
|
|
/* another section */
|
||
|
|
/* line that does not start with %% */
|
||
|
|
/* Save a few important lines */
|
||
|
|
|
||
|
|
char *line = dsc->line;
|
||
|
|
GSBOOL continued = FALSE;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
if (IS_DSC(line, "%%EndComments")) {
|
||
|
|
dsc->id = CDSC_ENDCOMMENTS;
|
||
|
|
dsc->endcomments = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_pre_preview;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginComments")) {
|
||
|
|
/* ignore because we are in this section */
|
||
|
|
dsc->id = CDSC_BEGINCOMMENTS;
|
||
|
|
}
|
||
|
|
else if (dsc_is_section(line)) {
|
||
|
|
dsc->endcomments = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_preview;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (line[0] == '%' && IS_WHITE_OR_EOL(line[1])) {
|
||
|
|
dsc->endcomments = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_preview;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (line[0] != '%') {
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
dsc->endcomments = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_preview;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Begin")) {
|
||
|
|
dsc->endcomments = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_preview;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Handle continuation lines.
|
||
|
|
* To simply processing, we assume that contination lines
|
||
|
|
* will only occur if repeat parameters are allowed and that
|
||
|
|
* a complete set of these parameters appears on each line.
|
||
|
|
* This is more restrictive than the DSC specification, but
|
||
|
|
* is valid for the DSC comments understood by this parser
|
||
|
|
* for all documents that we have seen.
|
||
|
|
*/
|
||
|
|
if (IS_DSC(line, "%%+")) {
|
||
|
|
line = dsc->last_line;
|
||
|
|
continued = TRUE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc_save_line(dsc);
|
||
|
|
|
||
|
|
if (IS_DSC(line, "%%Pages:")) {
|
||
|
|
dsc->id = CDSC_PAGES;
|
||
|
|
if (dsc_parse_pages(dsc) != 0)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Creator:")) {
|
||
|
|
dsc->id = CDSC_CREATOR;
|
||
|
|
dsc->dsc_creator = dsc_add_line(dsc, dsc->line+10, dsc->line_length-10);
|
||
|
|
if (dsc->dsc_creator==NULL)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%CreationDate:")) {
|
||
|
|
dsc->id = CDSC_CREATIONDATE;
|
||
|
|
dsc->dsc_date = dsc_add_line(dsc, dsc->line+15, dsc->line_length-15);
|
||
|
|
if (dsc->dsc_date==NULL)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Title:")) {
|
||
|
|
dsc->id = CDSC_TITLE;
|
||
|
|
dsc->dsc_title = dsc_add_line(dsc, dsc->line+8, dsc->line_length-8);
|
||
|
|
if (dsc->dsc_title==NULL)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%For:")) {
|
||
|
|
dsc->id = CDSC_FOR;
|
||
|
|
dsc->dsc_for = dsc_add_line(dsc, dsc->line+6, dsc->line_length-6);
|
||
|
|
if (dsc->dsc_for==NULL)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%LanguageLevel:")) {
|
||
|
|
unsigned int n = continued ? 3 : 16;
|
||
|
|
unsigned int i;
|
||
|
|
int ll;
|
||
|
|
dsc->id = CDSC_LANGUAGELEVEL;
|
||
|
|
ll = dsc_get_int(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
if ( (ll==1) || (ll==2) || (ll==3) )
|
||
|
|
dsc->language_level = ll;
|
||
|
|
else {
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BoundingBox:")) {
|
||
|
|
dsc->id = CDSC_BOUNDINGBOX;
|
||
|
|
if (dsc_parse_bounding_box(dsc, &(dsc->bbox), continued ? 3 : 14))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%HiResBoundingBox:")) {
|
||
|
|
dsc->id = CDSC_HIRESBOUNDINGBOX;
|
||
|
|
if (dsc_parse_float_bounding_box(dsc, &(dsc->hires_bbox),
|
||
|
|
continued ? 3 : 19))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%CropBox:")) {
|
||
|
|
dsc->id = CDSC_CROPBOX;
|
||
|
|
if (dsc_parse_float_bounding_box(dsc, &(dsc->crop_box),
|
||
|
|
continued ? 3 : 10))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Orientation:")) {
|
||
|
|
dsc->id = CDSC_ORIENTATION;
|
||
|
|
if (dsc_parse_orientation(dsc, &(dsc->page_orientation),
|
||
|
|
continued ? 3 : 14))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageOrder:")) {
|
||
|
|
dsc->id = CDSC_PAGEORDER;
|
||
|
|
if (dsc_parse_order(dsc))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentMedia:")) {
|
||
|
|
dsc->id = CDSC_DOCUMENTMEDIA;
|
||
|
|
if (dsc_parse_document_media(dsc))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentPaperSizes:")) {
|
||
|
|
/* DSC 2.1 */
|
||
|
|
unsigned int n = continued ? 3 : 21;
|
||
|
|
unsigned int count = 0;
|
||
|
|
unsigned int i = 1;
|
||
|
|
char name[MAXSTR];
|
||
|
|
char *p;
|
||
|
|
dsc->id = CDSC_DOCUMENTPAPERSIZES;
|
||
|
|
while (i && (dsc->line[n]!='\r') && (dsc->line[n]!='\n')) {
|
||
|
|
p = dsc_copy_string(name, sizeof(name)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i && p) {
|
||
|
|
const CDSCMEDIA *m = dsc_known_media;
|
||
|
|
if (count >= dsc->media_count) {
|
||
|
|
/* set some default values */
|
||
|
|
CDSCMEDIA lmedia;
|
||
|
|
lmedia.name = p;
|
||
|
|
lmedia.width = 595.0;
|
||
|
|
lmedia.height = 842.0;
|
||
|
|
lmedia.weight = 80.0;
|
||
|
|
lmedia.colour = NULL;
|
||
|
|
lmedia.type = NULL;
|
||
|
|
lmedia.mediabox = NULL;
|
||
|
|
if (dsc_add_media(dsc, &lmedia))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc->media[count]->name =
|
||
|
|
dsc_alloc_string(dsc, p, strlen(p));
|
||
|
|
/* find in list of known media */
|
||
|
|
while (m && m->name) {
|
||
|
|
if (dsc_stricmp(p, m->name)==0) {
|
||
|
|
dsc->media[count]->width = m->width;
|
||
|
|
dsc->media[count]->height = m->height;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
m++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
n+=i;
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentPaperForms:")) {
|
||
|
|
/* DSC 2.1 */
|
||
|
|
unsigned int n = continued ? 3 : 21;
|
||
|
|
unsigned int count = 0;
|
||
|
|
unsigned int i = 1;
|
||
|
|
char type[MAXSTR];
|
||
|
|
char *p;
|
||
|
|
dsc->id = CDSC_DOCUMENTPAPERFORMS;
|
||
|
|
while (i && (dsc->line[n]!='\r') && (dsc->line[n]!='\n')) {
|
||
|
|
p = dsc_copy_string(type, sizeof(type)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i && p) {
|
||
|
|
if (count >= dsc->media_count) {
|
||
|
|
/* set some default values */
|
||
|
|
CDSCMEDIA lmedia;
|
||
|
|
lmedia.name = NULL;
|
||
|
|
lmedia.width = 595.0;
|
||
|
|
lmedia.height = 842.0;
|
||
|
|
lmedia.weight = 80.0;
|
||
|
|
lmedia.colour = NULL;
|
||
|
|
lmedia.type = p;
|
||
|
|
lmedia.mediabox = NULL;
|
||
|
|
if (dsc_add_media(dsc, &lmedia))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc->media[count]->type =
|
||
|
|
dsc_alloc_string(dsc, p, strlen(p));
|
||
|
|
}
|
||
|
|
n+=i;
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentPaperColors:")) {
|
||
|
|
/* DSC 2.1 */
|
||
|
|
unsigned int n = continued ? 3 : 22;
|
||
|
|
unsigned int count = 0;
|
||
|
|
unsigned int i = 1;
|
||
|
|
char colour[MAXSTR];
|
||
|
|
char *p;
|
||
|
|
dsc->id = CDSC_DOCUMENTPAPERCOLORS;
|
||
|
|
while (i && (dsc->line[n]!='\r') && (dsc->line[n]!='\n')) {
|
||
|
|
p = dsc_copy_string(colour, sizeof(colour)-1,
|
||
|
|
dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i && p) {
|
||
|
|
if (count >= dsc->media_count) {
|
||
|
|
/* set some default values */
|
||
|
|
CDSCMEDIA lmedia;
|
||
|
|
lmedia.name = NULL;
|
||
|
|
lmedia.width = 595.0;
|
||
|
|
lmedia.height = 842.0;
|
||
|
|
lmedia.weight = 80.0;
|
||
|
|
lmedia.colour = p;
|
||
|
|
lmedia.type = NULL;
|
||
|
|
lmedia.mediabox = NULL;
|
||
|
|
if (dsc_add_media(dsc, &lmedia))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc->media[count]->colour =
|
||
|
|
dsc_alloc_string(dsc, p, strlen(p));
|
||
|
|
}
|
||
|
|
n+=i;
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentPaperWeights:")) {
|
||
|
|
/* DSC 2.1 */
|
||
|
|
unsigned int n = continued ? 3 : 23;
|
||
|
|
unsigned int count = 0;
|
||
|
|
unsigned int i = 1;
|
||
|
|
float w;
|
||
|
|
dsc->id = CDSC_DOCUMENTPAPERWEIGHTS;
|
||
|
|
while (i && (dsc->line[n]!='\r') && (dsc->line[n]!='\n')) {
|
||
|
|
w = dsc_get_real(dsc->line+n, dsc->line_length-n, &i);
|
||
|
|
if (i) {
|
||
|
|
if (count >= dsc->media_count) {
|
||
|
|
/* set some default values */
|
||
|
|
CDSCMEDIA lmedia;
|
||
|
|
lmedia.name = NULL;
|
||
|
|
lmedia.width = 595.0;
|
||
|
|
lmedia.height = 842.0;
|
||
|
|
lmedia.weight = w;
|
||
|
|
lmedia.colour = NULL;
|
||
|
|
lmedia.type = NULL;
|
||
|
|
lmedia.mediabox = NULL;
|
||
|
|
if (dsc_add_media(dsc, &lmedia))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc->media[count]->weight = w;
|
||
|
|
}
|
||
|
|
n+=i;
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentData:")) {
|
||
|
|
unsigned int n = continued ? 3 : 15;
|
||
|
|
char *p = dsc->line + n;
|
||
|
|
while (IS_WHITE(*p))
|
||
|
|
p++;
|
||
|
|
dsc->id = CDSC_DOCUMENTDATA;
|
||
|
|
if (COMPARE(p, "Clean7Bit"))
|
||
|
|
dsc->document_data = CDSC_CLEAN7BIT;
|
||
|
|
else if (COMPARE(p, "Clean8Bit"))
|
||
|
|
dsc->document_data = CDSC_CLEAN8BIT;
|
||
|
|
else if (COMPARE(p, "Binary"))
|
||
|
|
dsc->document_data = CDSC_BINARY;
|
||
|
|
else
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Requirements:")) {
|
||
|
|
dsc->id = CDSC_REQUIREMENTS;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentNeededFonts:")) {
|
||
|
|
dsc->id = CDSC_DOCUMENTNEEDEDFONTS;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentSuppliedFonts:")) {
|
||
|
|
dsc->id = CDSC_DOCUMENTSUPPLIEDFONTS;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (dsc->line[0] == '%' && IS_WHITE_OR_EOL(dsc->line[1])) {
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->endcomments = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_preview(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Preview section ends at */
|
||
|
|
/* %%EndPreview */
|
||
|
|
/* another section */
|
||
|
|
/* Preview section must start with %%BeginPreview */
|
||
|
|
char *line = dsc->line;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
|
||
|
|
if (dsc->scan_section == scan_pre_preview) {
|
||
|
|
if (IS_BLANK(line))
|
||
|
|
return CDSC_OK; /* ignore blank lines before preview */
|
||
|
|
else if (IS_DSC(line, "%%BeginPreview")) {
|
||
|
|
dsc->id = CDSC_BEGINPREVIEW;
|
||
|
|
dsc->beginpreview = DSC_START(dsc);
|
||
|
|
dsc->endpreview = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_preview;
|
||
|
|
/* Don't mark the preview as EPSI if a DOS EPS header is present */
|
||
|
|
if (dsc->preview == CDSC_NOPREVIEW)
|
||
|
|
dsc->preview = CDSC_EPSI;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->scan_section = scan_pre_defaults;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (IS_DSC(line, "%%BeginPreview")) {
|
||
|
|
/* ignore because we are in this section */
|
||
|
|
}
|
||
|
|
else if (dsc_is_section(line)) {
|
||
|
|
dsc->endpreview = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_defaults;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndPreview")) {
|
||
|
|
dsc->id = CDSC_ENDPREVIEW;
|
||
|
|
dsc->endpreview = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_pre_defaults;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (line[0] == '%' && line[1] != '%') {
|
||
|
|
/* Ordinary comments are OK */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
/* DSC comments should not occur in preview */
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->endpreview = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_defaults(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Defaults section ends at */
|
||
|
|
/* %%EndDefaults */
|
||
|
|
/* another section */
|
||
|
|
/* Defaults section must start with %%BeginDefaults */
|
||
|
|
char *line = dsc->line;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
|
||
|
|
if (dsc->scan_section == scan_pre_defaults) {
|
||
|
|
if (IS_BLANK(line))
|
||
|
|
return CDSC_OK; /* ignore blank lines before defaults */
|
||
|
|
else if (IS_DSC(line, "%%BeginDefaults")) {
|
||
|
|
dsc->id = CDSC_BEGINDEFAULTS;
|
||
|
|
dsc->begindefaults = DSC_START(dsc);
|
||
|
|
dsc->enddefaults = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_defaults;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->scan_section = scan_pre_prolog;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (NOT_DSC_LINE(line)) {
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginPreview")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginDefaults")) {
|
||
|
|
/* ignore because we are in this section */
|
||
|
|
}
|
||
|
|
else if (dsc_is_section(line)) {
|
||
|
|
dsc->enddefaults = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_prolog;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndDefaults")) {
|
||
|
|
dsc->id = CDSC_ENDDEFAULTS;
|
||
|
|
dsc->enddefaults = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_pre_prolog;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageMedia:")) {
|
||
|
|
dsc->id = CDSC_PAGEMEDIA;
|
||
|
|
dsc_parse_media(dsc, &dsc->page_media);
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageOrientation:")) {
|
||
|
|
dsc->id = CDSC_PAGEORIENTATION;
|
||
|
|
/* This can override %%Orientation: */
|
||
|
|
if (dsc_parse_orientation(dsc, &(dsc->page_orientation), 18))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageBoundingBox:")) {
|
||
|
|
dsc->id = CDSC_PAGEBOUNDINGBOX;
|
||
|
|
if (dsc_parse_bounding_box(dsc, &(dsc->page_bbox), 18))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%ViewingOrientation:")) {
|
||
|
|
dsc->id = CDSC_VIEWINGORIENTATION;
|
||
|
|
if (dsc_parse_viewing_orientation(dsc, &dsc->viewing_orientation))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
/* All other DSC comments are unknown, but not an error */
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
dsc->enddefaults = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* CDSC_RESPONSE_OK and CDSC_RESPONSE_CANCEL mean ignore the
|
||
|
|
* mismatch (default) */
|
||
|
|
dsc_private int
|
||
|
|
dsc_check_match_prompt(CDSC *dsc, const char *str, int count)
|
||
|
|
{
|
||
|
|
if (count != 0) {
|
||
|
|
char buf[MAXSTR+MAXSTR] = "";
|
||
|
|
if (dsc->line_length < (unsigned int)(sizeof(buf)/2-1)) {
|
||
|
|
strncpy(buf, dsc->line, dsc->line_length);
|
||
|
|
buf[dsc->line_length] = '\0';
|
||
|
|
}
|
||
|
|
sprintf(buf+strlen(buf), "\n%%%%Begin%.40s: / %%%%End%.40s\n", str, str);
|
||
|
|
return dsc_error(dsc, CDSC_MESSAGE_BEGIN_END, buf, strlen(buf));
|
||
|
|
}
|
||
|
|
return CDSC_RESPONSE_CANCEL;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_check_match_type(CDSC *dsc, const char *str, int count)
|
||
|
|
{
|
||
|
|
if (dsc_check_match_prompt(dsc, str, count) == CDSC_RESPONSE_IGNORE_ALL)
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* complain if Begin/End blocks didn't match */
|
||
|
|
/* return non-zero if we should ignore all DSC */
|
||
|
|
dsc_private int
|
||
|
|
dsc_check_match(CDSC *dsc)
|
||
|
|
{
|
||
|
|
int rc = 0;
|
||
|
|
const char *font = "Font";
|
||
|
|
const char *feature = "Feature";
|
||
|
|
const char *resource = "Resource";
|
||
|
|
const char *procset = "ProcSet";
|
||
|
|
|
||
|
|
if (!rc)
|
||
|
|
rc = dsc_check_match_type(dsc, font, dsc->begin_font_count);
|
||
|
|
if (!rc)
|
||
|
|
rc = dsc_check_match_type(dsc, feature, dsc->begin_feature_count);
|
||
|
|
if (!rc)
|
||
|
|
rc = dsc_check_match_type(dsc, resource, dsc->begin_resource_count);
|
||
|
|
if (!rc)
|
||
|
|
rc = dsc_check_match_type(dsc, procset, dsc->begin_procset_count);
|
||
|
|
|
||
|
|
dsc->begin_font_count = 0;
|
||
|
|
dsc->begin_feature_count = 0;
|
||
|
|
dsc->begin_resource_count = 0;
|
||
|
|
dsc->begin_procset_count = 0;
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_prolog(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Prolog section ends at */
|
||
|
|
/* %%EndProlog */
|
||
|
|
/* another section */
|
||
|
|
/* Prolog section may start with %%BeginProlog or non-dsc line */
|
||
|
|
char *line = dsc->line;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
|
||
|
|
if (dsc->scan_section == scan_pre_prolog) {
|
||
|
|
if (dsc_is_section(line) && (!IS_DSC(line, "%%BeginProlog"))) {
|
||
|
|
dsc->scan_section = scan_pre_setup;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
dsc->id = CDSC_BEGINPROLOG;
|
||
|
|
dsc->beginprolog = DSC_START(dsc);
|
||
|
|
dsc->endprolog = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_prolog;
|
||
|
|
if (IS_DSC(line, "%%BeginProlog"))
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (NOT_DSC_LINE(line)) {
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginPreview")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginDefaults")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginProlog")) {
|
||
|
|
/* ignore because we are in this section */
|
||
|
|
}
|
||
|
|
else if (dsc_is_section(line)) {
|
||
|
|
dsc->endprolog = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_setup;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndProlog")) {
|
||
|
|
dsc->id = CDSC_ENDPROLOG;
|
||
|
|
dsc->endprolog = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_pre_setup;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginFont:")) {
|
||
|
|
dsc->id = CDSC_BEGINFONT;
|
||
|
|
/* ignore Begin/EndFont, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_font_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndFont")) {
|
||
|
|
dsc->id = CDSC_ENDFONT;
|
||
|
|
dsc->begin_font_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginFeature:")) {
|
||
|
|
dsc->id = CDSC_BEGINFEATURE;
|
||
|
|
/* ignore Begin/EndFeature, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_feature_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndFeature")) {
|
||
|
|
dsc->id = CDSC_ENDFEATURE;
|
||
|
|
dsc->begin_feature_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginResource:")) {
|
||
|
|
dsc->id = CDSC_BEGINRESOURCE;
|
||
|
|
/* ignore Begin/EndResource, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_resource_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndResource")) {
|
||
|
|
dsc->id = CDSC_ENDRESOURCE;
|
||
|
|
dsc->begin_resource_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginProcSet:")) {
|
||
|
|
dsc->id = CDSC_BEGINPROCSET;
|
||
|
|
/* ignore Begin/EndProcSet, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_procset_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndProcSet")) {
|
||
|
|
dsc->id = CDSC_ENDPROCSET;
|
||
|
|
dsc->begin_procset_count--;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* All other DSC comments are unknown, but not an error */
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->endprolog = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_setup(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Setup section ends at */
|
||
|
|
/* %%EndSetup */
|
||
|
|
/* another section */
|
||
|
|
/* Setup section must start with %%BeginSetup */
|
||
|
|
|
||
|
|
char *line = dsc->line;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
|
||
|
|
if (dsc->scan_section == scan_pre_setup) {
|
||
|
|
if (IS_BLANK(line))
|
||
|
|
return CDSC_OK; /* ignore blank lines before setup */
|
||
|
|
else if (IS_DSC(line, "%%BeginSetup")) {
|
||
|
|
dsc->id = CDSC_BEGINSETUP;
|
||
|
|
dsc->beginsetup = DSC_START(dsc);
|
||
|
|
dsc->endsetup = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_setup;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->scan_section = scan_pre_pages;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (NOT_DSC_LINE(line)) {
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginPreview")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginDefaults")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginProlog")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginSetup")) {
|
||
|
|
/* ignore because we are in this section */
|
||
|
|
}
|
||
|
|
else if (dsc_is_section(line)) {
|
||
|
|
dsc->endsetup = DSC_START(dsc);
|
||
|
|
dsc->scan_section = scan_pre_pages;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndSetup")) {
|
||
|
|
dsc->id = CDSC_ENDSETUP;
|
||
|
|
dsc->endsetup = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_pre_pages;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginFeature:")) {
|
||
|
|
dsc->id = CDSC_BEGINFEATURE;
|
||
|
|
/* ignore Begin/EndFeature, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_feature_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndFeature")) {
|
||
|
|
dsc->id = CDSC_ENDFEATURE;
|
||
|
|
dsc->begin_feature_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Feature:")) {
|
||
|
|
dsc->id = CDSC_FEATURE;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginResource:")) {
|
||
|
|
dsc->id = CDSC_BEGINRESOURCE;
|
||
|
|
/* ignore Begin/EndResource, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_resource_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndResource")) {
|
||
|
|
dsc->id = CDSC_ENDRESOURCE;
|
||
|
|
dsc->begin_resource_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperColor:")) {
|
||
|
|
dsc->id = CDSC_PAPERCOLOR;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperForm:")) {
|
||
|
|
dsc->id = CDSC_PAPERFORM;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperWeight:")) {
|
||
|
|
dsc->id = CDSC_PAPERWEIGHT;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperSize:")) {
|
||
|
|
/* DSC 2.1 */
|
||
|
|
GSBOOL found_media = FALSE;
|
||
|
|
int i;
|
||
|
|
int n = 12;
|
||
|
|
char buf[MAXSTR];
|
||
|
|
buf[0] = '\0';
|
||
|
|
dsc->id = CDSC_PAPERSIZE;
|
||
|
|
dsc_copy_string(buf, sizeof(buf)-1, dsc->line+n, dsc->line_length-n,
|
||
|
|
NULL);
|
||
|
|
for (i=0; i<(int)dsc->media_count; i++) {
|
||
|
|
if (dsc->media[i] && dsc->media[i]->name &&
|
||
|
|
(dsc_stricmp(buf, dsc->media[i]->name)==0)) {
|
||
|
|
dsc->page_media = dsc->media[i];
|
||
|
|
found_media = TRUE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!found_media) {
|
||
|
|
/* It didn't match %%DocumentPaperSizes: */
|
||
|
|
/* Try our known media */
|
||
|
|
const CDSCMEDIA *m = dsc_known_media;
|
||
|
|
while (m->name) {
|
||
|
|
if (dsc_stricmp(buf, m->name)==0) {
|
||
|
|
dsc->page_media = m;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
m++;
|
||
|
|
}
|
||
|
|
if (m->name == NULL)
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* All other DSC comments are unknown, but not an error */
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->endsetup = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_page(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Page section ends at */
|
||
|
|
/* %%Page */
|
||
|
|
/* %%Trailer */
|
||
|
|
/* %%EOF */
|
||
|
|
char *line = dsc->line;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
|
||
|
|
if (dsc->scan_section == scan_pre_pages) {
|
||
|
|
if (IS_DSC(line, "%%Page:")) {
|
||
|
|
dsc->scan_section = scan_pages;
|
||
|
|
/* fall through */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* %%Page: didn't follow %%EndSetup
|
||
|
|
* Keep reading until reach %%Page or %%Trailer
|
||
|
|
* and add it to previous section.
|
||
|
|
*/
|
||
|
|
unsigned long *last;
|
||
|
|
if (dsc->endsetup != 0)
|
||
|
|
last = &dsc->endsetup;
|
||
|
|
else if (dsc->endprolog != 0)
|
||
|
|
last = &dsc->endprolog;
|
||
|
|
else if (dsc->enddefaults != 0)
|
||
|
|
last = &dsc->enddefaults;
|
||
|
|
else if (dsc->endpreview != 0)
|
||
|
|
last = &dsc->endpreview;
|
||
|
|
else if (dsc->endcomments != 0)
|
||
|
|
last = &dsc->endcomments;
|
||
|
|
else
|
||
|
|
last = &dsc->begincomments;
|
||
|
|
*last = DSC_START(dsc);
|
||
|
|
if (IS_DSC(line, "%%Trailer") || IS_DSC(line, "%%EOF")) {
|
||
|
|
dsc->scan_section = scan_pre_trailer;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (NOT_DSC_LINE(line)) {
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Page:")) {
|
||
|
|
dsc->id = CDSC_PAGE;
|
||
|
|
if (dsc->page_count) {
|
||
|
|
dsc->page[dsc->page_count-1].end = DSC_START(dsc);
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dsc_parse_page(dsc) != 0)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginPreview")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginDefaults")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginProlog")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginSetup")) {
|
||
|
|
/* ignore because we have already processed this section */
|
||
|
|
}
|
||
|
|
else if (dsc_is_section(line)) {
|
||
|
|
if (IS_DSC(line, "%%Trailer")) {
|
||
|
|
dsc->page[dsc->page_count-1].end = DSC_START(dsc);
|
||
|
|
if (dsc->file_length) {
|
||
|
|
if ((!dsc->doseps &&
|
||
|
|
((DSC_END(dsc) + 32768) < dsc->file_length)) ||
|
||
|
|
((dsc->doseps) &&
|
||
|
|
((DSC_END(dsc) + 32768) < dsc->doseps_end))) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_EARLY_TRAILER,
|
||
|
|
dsc->line, dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* ignore early trailer */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* this is the trailer */
|
||
|
|
dsc->scan_section = scan_pre_trailer;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->scan_section = scan_pre_trailer;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
dsc->scan_section = scan_pre_trailer;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EOF")) {
|
||
|
|
dsc->page[dsc->page_count-1].end = DSC_START(dsc);
|
||
|
|
if (dsc->file_length) {
|
||
|
|
if ((DSC_END(dsc)+100 < dsc->file_length) ||
|
||
|
|
(dsc->doseps && (DSC_END(dsc) + 100 < dsc->doseps_end))) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_EARLY_EOF,
|
||
|
|
dsc->line, dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* %%EOF is wrong, ignore it */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* %%EOF is correct */
|
||
|
|
dsc->scan_section = scan_eof;
|
||
|
|
dsc->eof = TRUE;
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_PROPAGATE;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* ignore it */
|
||
|
|
if (dsc_check_match(dsc))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* Section comment, probably from a badly */
|
||
|
|
/* encapsulated EPS file. */
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_BAD_SECTION,
|
||
|
|
dsc->line, dsc->line_length);
|
||
|
|
if (rc == CDSC_RESPONSE_IGNORE_ALL)
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageTrailer")) {
|
||
|
|
dsc->id = CDSC_PAGETRAILER;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginPageSetup")) {
|
||
|
|
dsc->id = CDSC_BEGINPAGESETUP;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndPageSetup")) {
|
||
|
|
dsc->id = CDSC_ENDPAGESETUP;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageMedia:")) {
|
||
|
|
dsc->id = CDSC_PAGEMEDIA;
|
||
|
|
dsc_parse_media(dsc, &(dsc->page[dsc->page_count-1].media));
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperColor:")) {
|
||
|
|
dsc->id = CDSC_PAPERCOLOR;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperForm:")) {
|
||
|
|
dsc->id = CDSC_PAPERFORM;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperWeight:")) {
|
||
|
|
dsc->id = CDSC_PAPERWEIGHT;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PaperSize:")) {
|
||
|
|
/* DSC 2.1 */
|
||
|
|
GSBOOL found_media = FALSE;
|
||
|
|
int i;
|
||
|
|
int n = 12;
|
||
|
|
char buf[MAXSTR];
|
||
|
|
buf[0] = '\0';
|
||
|
|
dsc_copy_string(buf, sizeof(buf)-1, dsc->line+n,
|
||
|
|
dsc->line_length-n, NULL);
|
||
|
|
for (i=0; i<(int)dsc->media_count; i++) {
|
||
|
|
if (dsc->media[i] && dsc->media[i]->name &&
|
||
|
|
(dsc_stricmp(buf, dsc->media[i]->name)==0)) {
|
||
|
|
dsc->page_media = dsc->media[i];
|
||
|
|
found_media = TRUE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!found_media) {
|
||
|
|
/* It didn't match %%DocumentPaperSizes: */
|
||
|
|
/* Try our known media */
|
||
|
|
const CDSCMEDIA *m = dsc_known_media;
|
||
|
|
while (m->name) {
|
||
|
|
if (dsc_stricmp(buf, m->name)==0) {
|
||
|
|
dsc->page[dsc->page_count-1].media = m;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
m++;
|
||
|
|
}
|
||
|
|
if (m->name == NULL)
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageOrientation:")) {
|
||
|
|
dsc->id = CDSC_PAGEORIENTATION;
|
||
|
|
if (dsc_parse_orientation(dsc,
|
||
|
|
&(dsc->page[dsc->page_count-1].orientation) ,18))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageBoundingBox:")) {
|
||
|
|
dsc->id = CDSC_PAGEBOUNDINGBOX;
|
||
|
|
if (dsc_parse_bounding_box(dsc, &dsc->page[dsc->page_count-1].bbox, 18))
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%ViewingOrientation:")) {
|
||
|
|
dsc->id = CDSC_VIEWINGORIENTATION;
|
||
|
|
if (dsc_parse_viewing_orientation(dsc,
|
||
|
|
&dsc->page[dsc->page_count-1].viewing_orientation))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginFont:")) {
|
||
|
|
dsc->id = CDSC_BEGINFONT;
|
||
|
|
/* ignore Begin/EndFont, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_font_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndFont")) {
|
||
|
|
dsc->id = CDSC_BEGINFONT;
|
||
|
|
dsc->begin_font_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginFeature:")) {
|
||
|
|
dsc->id = CDSC_BEGINFEATURE;
|
||
|
|
/* ignore Begin/EndFeature, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_feature_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndFeature")) {
|
||
|
|
dsc->id = CDSC_ENDFEATURE;
|
||
|
|
dsc->begin_feature_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginResource:")) {
|
||
|
|
dsc->id = CDSC_BEGINRESOURCE;
|
||
|
|
/* ignore Begin/EndResource, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_resource_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndResource")) {
|
||
|
|
dsc->id = CDSC_ENDRESOURCE;
|
||
|
|
dsc->begin_resource_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BeginProcSet:")) {
|
||
|
|
dsc->id = CDSC_BEGINPROCSET;
|
||
|
|
/* ignore Begin/EndProcSet, apart form making sure */
|
||
|
|
/* that they are matched. */
|
||
|
|
dsc->begin_procset_count++;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EndProcSet")) {
|
||
|
|
dsc->id = CDSC_ENDPROCSET;
|
||
|
|
dsc->begin_procset_count--;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%IncludeFont:")) {
|
||
|
|
dsc->id = CDSC_INCLUDEFONT;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* All other DSC comments are unknown, but not an error */
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->page[dsc->page_count-1].end = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Valid Trailer comments are
|
||
|
|
* %%Trailer
|
||
|
|
* %%EOF
|
||
|
|
* or the following deferred with (atend)
|
||
|
|
* %%BoundingBox:
|
||
|
|
* %%DocumentCustomColors:
|
||
|
|
* %%DocumentFiles:
|
||
|
|
* %%DocumentFonts:
|
||
|
|
* %%DocumentNeededFiles:
|
||
|
|
* %%DocumentNeededFonts:
|
||
|
|
* %%DocumentNeededProcSets:
|
||
|
|
* %%DocumentNeededResources:
|
||
|
|
* %%DocumentProcSets:
|
||
|
|
* %%DocumentProcessColors:
|
||
|
|
* %%DocumentSuppliedFiles:
|
||
|
|
* %%DocumentSuppliedFonts:
|
||
|
|
* %%DocumentSuppliedProcSets:
|
||
|
|
* %%DocumentSuppliedResources:
|
||
|
|
* %%Orientation:
|
||
|
|
* %%Pages:
|
||
|
|
* %%PageOrder:
|
||
|
|
*
|
||
|
|
* Our supported subset is
|
||
|
|
* %%Trailer
|
||
|
|
* %%EOF
|
||
|
|
* %%BoundingBox:
|
||
|
|
* %%Orientation:
|
||
|
|
* %%Pages:
|
||
|
|
* %%PageOrder:
|
||
|
|
* In addition to these, we support
|
||
|
|
* %%DocumentMedia:
|
||
|
|
*
|
||
|
|
* A %%PageTrailer can have the following:
|
||
|
|
* %%PageBoundingBox:
|
||
|
|
* %%PageCustomColors:
|
||
|
|
* %%PageFiles:
|
||
|
|
* %%PageFonts:
|
||
|
|
* %%PageOrientation:
|
||
|
|
* %%PageProcessColors:
|
||
|
|
* %%PageResources:
|
||
|
|
*/
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_scan_trailer(CDSC *dsc)
|
||
|
|
{
|
||
|
|
/* Trailer section start at */
|
||
|
|
/* %%Trailer */
|
||
|
|
/* and ends at */
|
||
|
|
/* %%EOF */
|
||
|
|
char *line = dsc->line;
|
||
|
|
GSBOOL continued = FALSE;
|
||
|
|
dsc->id = CDSC_OK;
|
||
|
|
|
||
|
|
if (dsc->scan_section == scan_pre_trailer) {
|
||
|
|
if (IS_DSC(line, "%%Trailer")) {
|
||
|
|
dsc->id = CDSC_TRAILER;
|
||
|
|
dsc->begintrailer = DSC_START(dsc);
|
||
|
|
dsc->endtrailer = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_trailer;
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%EOF")) {
|
||
|
|
dsc->id = CDSC_EOF;
|
||
|
|
dsc->begintrailer = DSC_START(dsc);
|
||
|
|
dsc->endtrailer = DSC_END(dsc);
|
||
|
|
dsc->scan_section = scan_trailer;
|
||
|
|
/* Continue, in case we found %%EOF in an embedded document */
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* %%Page: didn't follow %%EndSetup
|
||
|
|
* Keep reading until reach %%Page or %%Trailer
|
||
|
|
* and add it to setup section
|
||
|
|
*/
|
||
|
|
/* append to previous section */
|
||
|
|
if (dsc->beginsetup)
|
||
|
|
dsc->endsetup = DSC_END(dsc);
|
||
|
|
else if (dsc->beginprolog)
|
||
|
|
dsc->endprolog = DSC_END(dsc);
|
||
|
|
else {
|
||
|
|
/* horribly confused */
|
||
|
|
}
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Handle continuation lines.
|
||
|
|
* See comment above about our restrictive processing of
|
||
|
|
* continuation lines
|
||
|
|
*/
|
||
|
|
if (IS_DSC(line, "%%+")) {
|
||
|
|
line = dsc->last_line;
|
||
|
|
continued = TRUE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
dsc_save_line(dsc);
|
||
|
|
|
||
|
|
if (NOT_DSC_LINE(line)) {
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(dsc->line, "%%EOF")) {
|
||
|
|
/* Keep scanning, in case we have a false trailer */
|
||
|
|
dsc->id = CDSC_EOF;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(dsc->line, "%%Trailer")) {
|
||
|
|
/* Cope with no pages with code after setup and before trailer. */
|
||
|
|
/* Last trailer is the correct one. */
|
||
|
|
dsc->id = CDSC_TRAILER;
|
||
|
|
dsc->begintrailer = DSC_START(dsc);
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Pages:")) {
|
||
|
|
dsc->id = CDSC_PAGES;
|
||
|
|
if (dsc_parse_pages(dsc) != 0)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%BoundingBox:")) {
|
||
|
|
dsc->id = CDSC_BOUNDINGBOX;
|
||
|
|
if (dsc_parse_bounding_box(dsc, &(dsc->bbox), continued ? 3 : 14))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%HiResBoundingBox:")) {
|
||
|
|
dsc->id = CDSC_HIRESBOUNDINGBOX;
|
||
|
|
if (dsc_parse_float_bounding_box(dsc, &(dsc->hires_bbox),
|
||
|
|
continued ? 3 : 19))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%CropBox:")) {
|
||
|
|
dsc->id = CDSC_CROPBOX;
|
||
|
|
if (dsc_parse_float_bounding_box(dsc, &(dsc->crop_box),
|
||
|
|
continued ? 3 : 10))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%Orientation:")) {
|
||
|
|
dsc->id = CDSC_ORIENTATION;
|
||
|
|
if (dsc_parse_orientation(dsc, &(dsc->page_orientation), continued ? 3 : 14))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%PageOrder:")) {
|
||
|
|
dsc->id = CDSC_PAGEORDER;
|
||
|
|
if (dsc_parse_order(dsc))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentMedia:")) {
|
||
|
|
dsc->id = CDSC_DOCUMENTMEDIA;
|
||
|
|
if (dsc_parse_document_media(dsc))
|
||
|
|
return CDSC_ERROR;
|
||
|
|
}
|
||
|
|
else if (IS_DSC(dsc->line, "%%Page:")) {
|
||
|
|
/* This should not occur in the trailer, but we might see
|
||
|
|
* this if a document has been incorrectly embedded.
|
||
|
|
*/
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_PAGE_IN_TRAILER,
|
||
|
|
dsc->line, dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* Assume that we are really in the previous */
|
||
|
|
/* page, not the trailer */
|
||
|
|
dsc->scan_section = scan_pre_pages;
|
||
|
|
if (dsc->page_count)
|
||
|
|
dsc->page[dsc->page_count-1].end = DSC_START(dsc);
|
||
|
|
return CDSC_PROPAGATE; /* try again */
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* ignore pages in trailer */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentNeededFonts:")) {
|
||
|
|
dsc->id = CDSC_DOCUMENTNEEDEDFONTS;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else if (IS_DSC(line, "%%DocumentSuppliedFonts:")) {
|
||
|
|
dsc->id = CDSC_DOCUMENTSUPPLIEDFONTS;
|
||
|
|
/* ignore */
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* All other DSC comments are unknown, but not an error */
|
||
|
|
dsc->id = CDSC_UNKNOWNDSC;
|
||
|
|
dsc_unknown(dsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc->endtrailer = DSC_END(dsc);
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private char *
|
||
|
|
dsc_alloc_string(CDSC *dsc, const char *str, int len)
|
||
|
|
{
|
||
|
|
char *p;
|
||
|
|
if (dsc->string_head == NULL) {
|
||
|
|
dsc->string_head = (CDSCSTRING *)dsc_memalloc(dsc, sizeof(CDSCSTRING));
|
||
|
|
if (dsc->string_head == NULL)
|
||
|
|
return NULL; /* no memory */
|
||
|
|
dsc->string = dsc->string_head;
|
||
|
|
dsc->string->next = NULL;
|
||
|
|
dsc->string->data = (char *)dsc_memalloc(dsc, CDSC_STRING_CHUNK);
|
||
|
|
if (dsc->string->data == NULL) {
|
||
|
|
dsc_reset(dsc);
|
||
|
|
return NULL; /* no memory */
|
||
|
|
}
|
||
|
|
dsc->string->index = 0;
|
||
|
|
dsc->string->length = CDSC_STRING_CHUNK;
|
||
|
|
}
|
||
|
|
if ( dsc->string->index + len + 1 > dsc->string->length) {
|
||
|
|
/* allocate another string block */
|
||
|
|
CDSCSTRING *newstring = (CDSCSTRING *)dsc_memalloc(dsc, sizeof(CDSCSTRING));
|
||
|
|
if (newstring == NULL) {
|
||
|
|
dsc_debug_print(dsc, "Out of memory\n");
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
newstring->next = NULL;
|
||
|
|
newstring->length = 0;
|
||
|
|
newstring->index = 0;
|
||
|
|
newstring->data = (char *)dsc_memalloc(dsc, CDSC_STRING_CHUNK);
|
||
|
|
if (newstring->data == NULL) {
|
||
|
|
dsc_memfree(dsc, newstring);
|
||
|
|
dsc_debug_print(dsc, "Out of memory\n");
|
||
|
|
return NULL; /* no memory */
|
||
|
|
}
|
||
|
|
newstring->length = CDSC_STRING_CHUNK;
|
||
|
|
dsc->string->next = newstring;
|
||
|
|
dsc->string = newstring;
|
||
|
|
}
|
||
|
|
if ( dsc->string->index + len + 1 > dsc->string->length)
|
||
|
|
return NULL; /* failed */
|
||
|
|
p = dsc->string->data + dsc->string->index;
|
||
|
|
memcpy(p, str, len);
|
||
|
|
*(p+len) = '\0';
|
||
|
|
dsc->string->index += len + 1;
|
||
|
|
return p;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* store line, ignoring leading spaces */
|
||
|
|
dsc_private char *
|
||
|
|
dsc_add_line(CDSC *dsc, const char *line, unsigned int len)
|
||
|
|
{
|
||
|
|
char *newline;
|
||
|
|
unsigned int i;
|
||
|
|
while (len && (IS_WHITE(*line))) {
|
||
|
|
len--;
|
||
|
|
line++;
|
||
|
|
}
|
||
|
|
newline = dsc_alloc_string(dsc, line, len);
|
||
|
|
if (newline == NULL)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
for (i=0; i<len; i++) {
|
||
|
|
if (newline[i] == '\r') {
|
||
|
|
newline[i]='\0';
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if (newline[i] == '\n') {
|
||
|
|
newline[i]='\0';
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return newline;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Copy string on line to new allocated string str */
|
||
|
|
/* String is always null terminated */
|
||
|
|
/* String is no longer than len */
|
||
|
|
/* Return pointer to string */
|
||
|
|
/* Store number of used characters from line */
|
||
|
|
/* Don't copy enclosing () */
|
||
|
|
dsc_private char *
|
||
|
|
dsc_copy_string(char *str, unsigned int slen, char *line,
|
||
|
|
unsigned int len, unsigned int *offset)
|
||
|
|
{
|
||
|
|
int quoted = FALSE;
|
||
|
|
int instring=0;
|
||
|
|
unsigned int newlength = 0;
|
||
|
|
unsigned int i = 0;
|
||
|
|
unsigned char ch;
|
||
|
|
if (len > slen)
|
||
|
|
len = slen-1;
|
||
|
|
while ( (i<len) && IS_WHITE(line[i]))
|
||
|
|
i++; /* skip leading spaces */
|
||
|
|
if (line[i]=='(') {
|
||
|
|
quoted = TRUE;
|
||
|
|
instring++;
|
||
|
|
i++; /* don't copy outside () */
|
||
|
|
}
|
||
|
|
while (i < len) {
|
||
|
|
str[newlength] = ch = line[i];
|
||
|
|
i++;
|
||
|
|
if (quoted) {
|
||
|
|
if (ch == '(')
|
||
|
|
instring++;
|
||
|
|
if (ch == ')')
|
||
|
|
instring--;
|
||
|
|
if (instring==0)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else if (ch == ' ')
|
||
|
|
break;
|
||
|
|
|
||
|
|
if (ch == '\r')
|
||
|
|
break;
|
||
|
|
if (ch == '\n')
|
||
|
|
break;
|
||
|
|
else if ( (ch == '\\') && (i+1 < len) ) {
|
||
|
|
ch = line[i];
|
||
|
|
if ((ch >= '0') && (ch <= '9')) {
|
||
|
|
/* octal coded character */
|
||
|
|
int j = 3;
|
||
|
|
ch = 0;
|
||
|
|
while (j && (i < len) && line[i]>='0' && line[i]<='7') {
|
||
|
|
ch = (unsigned char)((ch<<3) + (line[i]-'0'));
|
||
|
|
i++;
|
||
|
|
j--;
|
||
|
|
}
|
||
|
|
str[newlength] = ch;
|
||
|
|
}
|
||
|
|
else if (ch == '(') {
|
||
|
|
str[newlength] = ch;
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == ')') {
|
||
|
|
str[newlength] = ch;
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == 'b') {
|
||
|
|
str[newlength] = '\b';
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == 'f') {
|
||
|
|
str[newlength] = '\b';
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == 'n') {
|
||
|
|
str[newlength] = '\n';
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == 'r') {
|
||
|
|
str[newlength] = '\r';
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == 't') {
|
||
|
|
str[newlength] = '\t';
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
else if (ch == '\\') {
|
||
|
|
str[newlength] = '\\';
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
newlength++;
|
||
|
|
}
|
||
|
|
str[newlength] = '\0';
|
||
|
|
if (offset != (unsigned int *)NULL)
|
||
|
|
*offset = i;
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_get_int(const char *line, unsigned int len, unsigned int *offset)
|
||
|
|
{
|
||
|
|
char newline[MAXSTR];
|
||
|
|
int newlength = 0;
|
||
|
|
unsigned int i = 0;
|
||
|
|
unsigned char ch;
|
||
|
|
|
||
|
|
len = min((size_t) len, (size_t) sizeof(newline)-1);
|
||
|
|
while ((i<len) && IS_WHITE(line[i]))
|
||
|
|
i++; /* skip leading spaces */
|
||
|
|
while (i < len) {
|
||
|
|
newline[newlength] = ch = line[i];
|
||
|
|
if (!(isdigit(ch) || (ch=='-') || (ch=='+')))
|
||
|
|
break; /* not part of an integer number */
|
||
|
|
i++;
|
||
|
|
newlength++;
|
||
|
|
}
|
||
|
|
while ((i<len) && IS_WHITE(line[i]))
|
||
|
|
i++; /* skip trailing spaces */
|
||
|
|
newline[newlength] = '\0';
|
||
|
|
if (offset != (unsigned int *)NULL)
|
||
|
|
*offset = i;
|
||
|
|
return atoi(newline);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private float
|
||
|
|
dsc_get_real(const char *line, unsigned int len, unsigned int *offset)
|
||
|
|
{
|
||
|
|
char newline[MAXSTR];
|
||
|
|
int newlength = 0;
|
||
|
|
unsigned int i = 0;
|
||
|
|
unsigned char ch;
|
||
|
|
|
||
|
|
len = min((size_t) len, (size_t) sizeof(newline)-1);
|
||
|
|
while ((i<len) && IS_WHITE(line[i]))
|
||
|
|
i++; /* skip leading spaces */
|
||
|
|
while (i < len) {
|
||
|
|
newline[newlength] = ch = line[i];
|
||
|
|
if (!(isdigit(ch) || (ch=='.') || (ch=='-') || (ch=='+')
|
||
|
|
|| (ch=='e') || (ch=='E')))
|
||
|
|
break; /* not part of a real number */
|
||
|
|
i++;
|
||
|
|
newlength++;
|
||
|
|
}
|
||
|
|
while ((i<len) && IS_WHITE(line[i]))
|
||
|
|
i++; /* skip trailing spaces */
|
||
|
|
|
||
|
|
newline[newlength] = '\0';
|
||
|
|
|
||
|
|
if (offset != (unsigned int *)NULL)
|
||
|
|
*offset = i;
|
||
|
|
return (float)atof(newline);
|
||
|
|
}
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_stricmp(const char *s, const char *t)
|
||
|
|
{
|
||
|
|
while (toupper(*s) == toupper(*t)) {
|
||
|
|
if (*s == '\0')
|
||
|
|
return 0;
|
||
|
|
s++;
|
||
|
|
t++;
|
||
|
|
}
|
||
|
|
return (toupper(*s) - toupper(*t));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
dsc_private int
|
||
|
|
dsc_parse_page(CDSC *dsc)
|
||
|
|
{
|
||
|
|
char *p;
|
||
|
|
unsigned int i;
|
||
|
|
char page_label[MAXSTR];
|
||
|
|
char *pl;
|
||
|
|
int page_ordinal;
|
||
|
|
int page_number;
|
||
|
|
|
||
|
|
p = dsc->line + 7;
|
||
|
|
pl = dsc_copy_string(page_label, sizeof(page_label)-1, p, dsc->line_length-7, &i);
|
||
|
|
if (pl == NULL)
|
||
|
|
return CDSC_ERROR;
|
||
|
|
p += i;
|
||
|
|
page_ordinal = atoi(p);
|
||
|
|
|
||
|
|
if ( (page_ordinal == 0) || (strlen(page_label) == 0) ||
|
||
|
|
(dsc->page_count &&
|
||
|
|
(page_ordinal != dsc->page[dsc->page_count-1].ordinal+1)) ) {
|
||
|
|
int rc = dsc_error(dsc, CDSC_MESSAGE_PAGE_ORDINAL, dsc->line,
|
||
|
|
dsc->line_length);
|
||
|
|
switch (rc) {
|
||
|
|
case CDSC_RESPONSE_OK:
|
||
|
|
/* ignore this page */
|
||
|
|
return CDSC_OK;
|
||
|
|
case CDSC_RESPONSE_CANCEL:
|
||
|
|
/* accept the page */
|
||
|
|
break;
|
||
|
|
case CDSC_RESPONSE_IGNORE_ALL:
|
||
|
|
return CDSC_NOTDSC;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
page_number = dsc->page_count;
|
||
|
|
dsc_add_page(dsc, page_ordinal, page_label);
|
||
|
|
dsc->page[page_number].begin = DSC_START(dsc);
|
||
|
|
dsc->page[page_number].end = DSC_START(dsc);
|
||
|
|
|
||
|
|
if (dsc->page[page_number].label == NULL)
|
||
|
|
return CDSC_ERROR; /* no memory */
|
||
|
|
|
||
|
|
return CDSC_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/* DSC error reporting */
|
||
|
|
|
||
|
|
void
|
||
|
|
dsc_debug_print(CDSC *dsc, const char *str)
|
||
|
|
{
|
||
|
|
if (dsc->debug_print_fn)
|
||
|
|
dsc->debug_print_fn(dsc->caller_data, str);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Display a message about a problem with the DSC comments.
|
||
|
|
*
|
||
|
|
* explanation = an index to to a multiline explanation in dsc_message[]
|
||
|
|
* line = pointer to the offending DSC line (if any)
|
||
|
|
* return code =
|
||
|
|
* CDSC_RESPONSE_OK DSC was wrong, make a guess about what
|
||
|
|
* was really meant.
|
||
|
|
* CDSC_RESPONSE_CANCEL Assume DSC was correct, ignore if it
|
||
|
|
* is misplaced.
|
||
|
|
* CDSC_RESPONSE_IGNORE_ALL Ignore all DSC.
|
||
|
|
*/
|
||
|
|
/* Silent operation. Don't display errors. */
|
||
|
|
dsc_private int
|
||
|
|
dsc_error(CDSC *dsc, unsigned int explanation,
|
||
|
|
char *line, unsigned int line_len)
|
||
|
|
{
|
||
|
|
/* if error function provided, use it */
|
||
|
|
if (dsc->dsc_error_fn)
|
||
|
|
return dsc->dsc_error_fn(dsc->caller_data, dsc,
|
||
|
|
explanation, line, line_len);
|
||
|
|
|
||
|
|
/* treat DSC as being correct */
|
||
|
|
return CDSC_RESPONSE_CANCEL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// vim:sw=4:sts=4:ts=8:noet
|