rosapps/smartpdf/fitz/include/mupdf/syntax.h

   1 /*
   2  * tokenizer and low-level object parser
   3  */
   4
   5 enum
   6 {
   7         PDF_TERROR, PDF_TEOF,
   8         PDF_TOARRAY, PDF_TCARRAY,
   9         PDF_TODICT, PDF_TCDICT,
  10         PDF_TOBRACE, PDF_TCBRACE,
  11         PDF_TNAME, PDF_TINT, PDF_TREAL, PDF_TSTRING, PDF_TKEYWORD,
  12         PDF_TR, PDF_TTRUE, PDF_TFALSE, PDF_TNULL,
  13         PDF_TOBJ, PDF_TENDOBJ,
  14         PDF_TSTREAM, PDF_TENDSTREAM,
  15         PDF_TXREF, PDF_TTRAILER, PDF_TSTARTXREF,
  16         PDF_NTOKENS
  17 };
  18
  19 /* lex.c */
  20 int pdf_lex(fz_stream *f, unsigned char *buf, int n, int *len);
  21
  22 /* parse.c */
  23 fz_error *pdf_parsearray(fz_obj **op, fz_stream *f, char *buf, int cap);
  24 fz_error *pdf_parsedict(fz_obj **op, fz_stream *f, char *buf, int cap);
  25 fz_error *pdf_parsestmobj(fz_obj **op, fz_stream *f, char *buf, int cap);
  26 fz_error *pdf_parseindobj(fz_obj **op, fz_stream *f, char *buf, int cap, int *oid, int *gid, int *stmofs);
  27
  28 fz_rect pdf_torect(fz_obj *array);
  29 fz_matrix pdf_tomatrix(fz_obj *array);
  30 fz_error *pdf_toutf8(char **dstp, fz_obj *src);
  31 fz_error *pdf_toucs2(unsigned short **dstp, fz_obj *src);
  32
  33 /*
  34  * Encryption
  35  */
  36
  37 /* Permission bits on pdf_crypt_s->p field */
  38 #define PDF_PERM_PRINT          (1<<2)  // bit 3
  39 #define PDF_PERM_CHANGE         (1<<3)  // bit 4
  40 #define PDF_PERM_COPY           (1<<4)  // bit 5
  41 #define PDF_PERM_NOTES          (1<<5)  // bit 6
  42 #define PDF_PERM_FILL_FORM      (1<<8)  // bit 9
  43 #define PDF_PERM_ACCESSIBILITY  (1<<9)  // bit 10
  44 #define PDF_PERM_ASSEMBLE       (1<<10) // bit 11
  45 #define PDF_PERM_HIGH_RES_PRINT (1<<11) // bit 12
  46 #define PDF_DEFAULT_PERM_FLAGS  0xfffc
  47
  48 typedef struct pdf_crypt_s pdf_crypt;
  49
  50 struct pdf_crypt_s
  51 {
  52         unsigned char o[32];
  53         unsigned char u[32];
  54         unsigned int p;
  55         int r;
  56         int n;
  57
  58         fz_obj *encrypt;
  59         fz_obj *id;
  60
  61         unsigned char key[16];
  62         int keylen;
  63 };
  64
  65 /* crypt.c */
  66 fz_error *pdf_newdecrypt(pdf_crypt **cp, fz_obj *enc, fz_obj *id);
  67 fz_error *pdf_newencrypt(pdf_crypt **cp, char *userpw, char *ownerpw, int p, int n, fz_obj *id);
  68 fz_error *pdf_setpassword(pdf_crypt *crypt, char *pw);
  69 fz_error *pdf_setuserpassword(pdf_crypt *crypt, char *pw, int pwlen);
  70 fz_error *pdf_setownerpassword(pdf_crypt *crypt, char *pw, int pwlen);
  71 fz_error *pdf_cryptstream(fz_filter **fp, pdf_crypt *crypt, int oid, int gid);
  72 void pdf_cryptobj(pdf_crypt *crypt, fz_obj *obj, int oid, int gid);
  73 void pdf_dropcrypt(pdf_crypt *crypt);
  74