third-party/tidy-html5-master/src/tags.c

   1 /* tags.c -- recognize HTML tags
   2
   3   (c) 1998-2008 (W3C) MIT, ERCIM, Keio University
   4   See tidy.h for the copyright notice.
   5
   6   The HTML tags are stored as 8 bit ASCII strings.
   7
   8 */
   9
  10 #include "tidy-int.h"
  11 #include "message.h"
  12 #include "tmbstr.h"
  13 #if !defined(NDEBUG) && defined(_MSC_VER)
  14 #include "sprtf.h"
  15 #endif
  16 /* Attribute checking methods */
  17 static CheckAttribs CheckIMG;
  18 static CheckAttribs CheckLINK;
  19 static CheckAttribs CheckAREA;
  20 static CheckAttribs CheckTABLE;
  21 static CheckAttribs CheckCaption;
  22 static CheckAttribs CheckHTML;
  23
  24 #define VERS_ELEM_A          (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  25 #define VERS_ELEM_ABBR       (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  26 #define VERS_ELEM_ACRONYM    (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|xxxx|xxxx)
  27 #define VERS_ELEM_ADDRESS    (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  28 #define VERS_ELEM_APPLET     (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  29 #define VERS_ELEM_AREA       (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  30 #define VERS_ELEM_B          (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  31 #define VERS_ELEM_BASE       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  32 #define VERS_ELEM_BASEFONT   (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  33 #define VERS_ELEM_BDO        (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  34 #define VERS_ELEM_BIG        (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|xxxx|xxxx)
  35 #define VERS_ELEM_BLOCKQUOTE (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  36 #define VERS_ELEM_BODY       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  37 #define VERS_ELEM_BR         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  38 #define VERS_ELEM_BUTTON     (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  39 #define VERS_ELEM_CAPTION    (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  40 #define VERS_ELEM_CENTER     (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  41 #define VERS_ELEM_CITE       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  42 #define VERS_ELEM_CODE       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  43 #define VERS_ELEM_COL        (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  44 #define VERS_ELEM_COLGROUP   (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  45 #define VERS_ELEM_DD         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  46 #define VERS_ELEM_DEL        (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  47 #define VERS_ELEM_DFN        (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  48 #define VERS_ELEM_DIR        (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  49 #define VERS_ELEM_DIV        (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  50 #define VERS_ELEM_DL         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  51 #define VERS_ELEM_DT         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  52 #define VERS_ELEM_EM         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  53 #define VERS_ELEM_FIELDSET   (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  54 #define VERS_ELEM_FONT       (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  55 #define VERS_ELEM_FORM       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  56 #define VERS_ELEM_FRAME      (xxxx|xxxx|xxxx|xxxx|xxxx|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  57 #define VERS_ELEM_FRAMESET   (xxxx|xxxx|xxxx|xxxx|xxxx|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  58 #define VERS_ELEM_H1         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  59 #define VERS_ELEM_H2         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  60 #define VERS_ELEM_H3         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  61 #define VERS_ELEM_H4         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  62 #define VERS_ELEM_H5         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  63 #define VERS_ELEM_H6         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  64 #define VERS_ELEM_HEAD       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  65 #define VERS_ELEM_HR         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  66 #define VERS_ELEM_HTML       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  67 #define VERS_ELEM_I          (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  68 #define VERS_ELEM_IFRAME     (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
  69 #define VERS_ELEM_IMG        (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  70 #define VERS_ELEM_INPUT      (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  71 #define VERS_ELEM_INS        (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  72 #define VERS_ELEM_ISINDEX    (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  73 #define VERS_ELEM_KBD        (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  74 #define VERS_ELEM_LABEL      (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  75 #define VERS_ELEM_LEGEND     (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  76 #define VERS_ELEM_LI         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  77 #define VERS_ELEM_LINK       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  78 #define VERS_ELEM_LISTING    (HT20|HT32|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  79 #define VERS_ELEM_MAP        (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  80 #define VERS_ELEM_MATHML     (xxxx|xxxx|xxxx|H41T|X10T|xxxx|H41F|X10F|xxxx|H41S|X10S|XH11|xxxx|HT50|XH50) /* [i_a]2 */
  81 #define VERS_ELEM_MENU       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
  82 #define VERS_ELEM_META       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  83 #define VERS_ELEM_NEXTID     (HT20|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  84 #define VERS_ELEM_NOFRAMES   (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  85 #define VERS_ELEM_NOSCRIPT   (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  86 #define VERS_ELEM_OBJECT     (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  87 #define VERS_ELEM_OL         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  88 #define VERS_ELEM_OPTGROUP   (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
  89 #define VERS_ELEM_OPTION     (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  90 #define VERS_ELEM_P          (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  91 #define VERS_ELEM_PARAM      (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  92 #define VERS_ELEM_PICTURE    (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
  93 #define VERS_ELEM_PLAINTEXT  (HT20|HT32|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
  94 #define VERS_ELEM_PRE        (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  95 #define VERS_ELEM_Q          (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
  96 #define VERS_ELEM_RB         (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|xxxx|xxxx|xxxx)
  97 #define VERS_ELEM_RBC        (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|xxxx|xxxx|xxxx)
  98 #define VERS_ELEM_RP         (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|xxxx|HT50|XH50)
  99 #define VERS_ELEM_RT         (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|xxxx|HT50|XH50)
 100 #define VERS_ELEM_RTC        (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|xxxx|xxxx|xxxx)
 101 #define VERS_ELEM_RUBY       (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|XH11|xxxx|HT50|XH50)
 102 #define VERS_ELEM_S          (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 103 #define VERS_ELEM_SAMP       (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 104 #define VERS_ELEM_SCRIPT     (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 105 #define VERS_ELEM_SELECT     (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 106 #define VERS_ELEM_SMALL      (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 107 #define VERS_ELEM_SPAN       (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 108 #define VERS_ELEM_STRIKE     (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
 109 #define VERS_ELEM_STRONG     (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 110 #define VERS_ELEM_STYLE      (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 111 #define VERS_ELEM_SUB        (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 112 #define VERS_ELEM_SUP        (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 113 #define VERS_ELEM_SVG        (xxxx|xxxx|xxxx|H41T|X10T|xxxx|H41F|X10F|xxxx|H41S|X10S|XH11|xxxx|HT50|XH50)
 114 #define VERS_ELEM_TABLE      (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 115 #define VERS_ELEM_TBODY      (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 116 #define VERS_ELEM_TD         (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 117 #define VERS_ELEM_TEXTAREA   (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 118 #define VERS_ELEM_TFOOT      (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 119 #define VERS_ELEM_TH         (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 120 #define VERS_ELEM_THEAD      (xxxx|xxxx|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|HT50|XH50)
 121 #define VERS_ELEM_TITLE      (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 122 #define VERS_ELEM_TR         (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 123 #define VERS_ELEM_TT         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|xxxx|xxxx|xxxx)
 124 #define VERS_ELEM_U          (xxxx|HT32|H40T|H41T|X10T|H40F|H41F|X10F|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 125 #define VERS_ELEM_UL         (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 126 #define VERS_ELEM_VAR        (HT20|HT32|H40T|H41T|X10T|H40F|H41F|X10F|H40S|H41S|X10S|XH11|XB10|HT50|XH50)
 127 #define VERS_ELEM_XMP        (HT20|HT32|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx)
 128
 129 #define VERS_ELEM_ARTICLE    (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 130 #define VERS_ELEM_ASIDE      (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 131 #define VERS_ELEM_AUDIO      (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 132 #define VERS_ELEM_BDI        (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 133 #define VERS_ELEM_CANVAS     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 134 #define VERS_ELEM_COMMAND    (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 135 #define VERS_ELEM_DATALIST   (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 136 #define VERS_ELEM_DETAILS    (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 137 #define VERS_ELEM_DIALOG     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 138 #define VERS_ELEM_EMBED      (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 139 #define VERS_ELEM_FIGCAPTION (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 140 #define VERS_ELEM_FIGURE     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 141 #define VERS_ELEM_FOOTER     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 142 #define VERS_ELEM_HEADER     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 143 #define VERS_ELEM_HGROUP     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 144 #define VERS_ELEM_KEYGEN     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 145 #define VERS_ELEM_MAIN       (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 146 #define VERS_ELEM_MARK       (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 147 #define VERS_ELEM_MENUITEM   (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 148 #define VERS_ELEM_KEYGEN     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 149 #define VERS_ELEM_METER      (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 150 #define VERS_ELEM_NAV        (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 151 #define VERS_ELEM_OUTPUT     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 152 #define VERS_ELEM_PROGRESS   (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 153 #define VERS_ELEM_SECTION    (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 154 #define VERS_ELEM_SOURCE     (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 155 #define VERS_ELEM_SUMMARY    (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 156 #define VERS_ELEM_TEMPLATE   (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 157 #define VERS_ELEM_TIME       (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 158 #define VERS_ELEM_TRACK      (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 159 #define VERS_ELEM_VIDEO      (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 160 #define VERS_ELEM_WBR        (xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|xxxx|HT50|XH50)
 161
 162 /*\
 163  * Issue #167 & #169
 164  * Tody defaults to HTML5 mode
 165  * but allow this table to be ADJUSTED if NOT HTML5
 166  * was static const Dict tag_defs[] =
 167 \*/
 168 static Dict tag_defs[] =
 169 {
 170   { TidyTag_UNKNOWN,    "unknown!",   VERS_UNKNOWN,         NULL,                       (0),                                           NULL,          NULL           },
 171
 172   /* W3C defined elements */
 173   { TidyTag_A,          "a",          VERS_ELEM_A,          &TY_(W3CAttrsFor_A)[0],          (CM_INLINE|CM_BLOCK|CM_MIXED),                 TY_(ParseBlock),    NULL           }, /* Issue #167 & #169 - default HTML5 */
 174   { TidyTag_ABBR,       "abbr",       VERS_ELEM_ABBR,       &TY_(W3CAttrsFor_ABBR)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 175   { TidyTag_ACRONYM,    "acronym",    VERS_ELEM_ACRONYM,    &TY_(W3CAttrsFor_ACRONYM)[0],    (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 176   { TidyTag_ADDRESS,    "address",    VERS_ELEM_ADDRESS,    &TY_(W3CAttrsFor_ADDRESS)[0],    (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 177   { TidyTag_APPLET,     "applet",     VERS_ELEM_APPLET,     &TY_(W3CAttrsFor_APPLET)[0],     (CM_OBJECT|CM_IMG|CM_INLINE|CM_PARAM),         TY_(ParseBlock),    NULL           },
 178   { TidyTag_AREA,       "area",       VERS_ELEM_AREA,       &TY_(W3CAttrsFor_AREA)[0],       (CM_BLOCK|CM_EMPTY),                           TY_(ParseEmpty),    CheckAREA      },
 179   { TidyTag_B,          "b",          VERS_ELEM_B,          &TY_(W3CAttrsFor_B)[0],          (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 180   { TidyTag_BASE,       "base",       VERS_ELEM_BASE,       &TY_(W3CAttrsFor_BASE)[0],       (CM_HEAD|CM_EMPTY),                            TY_(ParseEmpty),    NULL           },
 181   { TidyTag_BASEFONT,   "basefont",   VERS_ELEM_BASEFONT,   &TY_(W3CAttrsFor_BASEFONT)[0],   (CM_INLINE|CM_EMPTY),                          TY_(ParseEmpty),    NULL           },
 182   { TidyTag_BDO,        "bdo",        VERS_ELEM_BDO,        &TY_(W3CAttrsFor_BDO)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 183   { TidyTag_BIG,        "big",        VERS_ELEM_BIG,        &TY_(W3CAttrsFor_BIG)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 184   { TidyTag_BLOCKQUOTE, "blockquote", VERS_ELEM_BLOCKQUOTE, &TY_(W3CAttrsFor_BLOCKQUOTE)[0], (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 185   { TidyTag_BODY,       "body",       VERS_ELEM_BODY,       &TY_(W3CAttrsFor_BODY)[0],       (CM_HTML|CM_OPT|CM_OMITST),                    TY_(ParseBody),     NULL           },
 186   { TidyTag_BR,         "br",         VERS_ELEM_BR,         &TY_(W3CAttrsFor_BR)[0],         (CM_INLINE|CM_EMPTY),                          TY_(ParseEmpty),    NULL           },
 187   { TidyTag_BUTTON,     "button",     VERS_ELEM_BUTTON,     &TY_(W3CAttrsFor_BUTTON)[0],     (CM_INLINE),                                   TY_(ParseBlock),    NULL           },
 188   { TidyTag_CAPTION,    "caption",    VERS_ELEM_CAPTION,    &TY_(W3CAttrsFor_CAPTION)[0],    (CM_TABLE),                                    TY_(ParseBlock),    CheckCaption   },
 189   { TidyTag_CENTER,     "center",     VERS_ELEM_CENTER,     &TY_(W3CAttrsFor_CENTER)[0],     (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 190   { TidyTag_CITE,       "cite",       VERS_ELEM_CITE,       &TY_(W3CAttrsFor_CITE)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 191   { TidyTag_CODE,       "code",       VERS_ELEM_CODE,       &TY_(W3CAttrsFor_CODE)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 192   { TidyTag_COL,        "col",        VERS_ELEM_COL,        &TY_(W3CAttrsFor_COL)[0],        (CM_TABLE|CM_EMPTY),                           TY_(ParseEmpty),    NULL           },
 193   { TidyTag_COLGROUP,   "colgroup",   VERS_ELEM_COLGROUP,   &TY_(W3CAttrsFor_COLGROUP)[0],   (CM_TABLE|CM_OPT),                             TY_(ParseColGroup), NULL           },
 194   { TidyTag_DD,         "dd",         VERS_ELEM_DD,         &TY_(W3CAttrsFor_DD)[0],         (CM_DEFLIST|CM_OPT|CM_NO_INDENT),              TY_(ParseBlock),    NULL           },
 195   { TidyTag_DEL,        "del",        VERS_ELEM_DEL,        &TY_(W3CAttrsFor_DEL)[0],        (CM_INLINE|CM_BLOCK|CM_MIXED),                 TY_(ParseInline),   NULL           },
 196   { TidyTag_DFN,        "dfn",        VERS_ELEM_DFN,        &TY_(W3CAttrsFor_DFN)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 197   { TidyTag_DIR,        "dir",        VERS_ELEM_DIR,        &TY_(W3CAttrsFor_DIR)[0],        (CM_BLOCK|CM_OBSOLETE),                        TY_(ParseList),     NULL           },
 198   { TidyTag_DIV,        "div",        VERS_ELEM_DIV,        &TY_(W3CAttrsFor_DIV)[0],        (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 199   { TidyTag_DL,         "dl",         VERS_ELEM_DL,         &TY_(W3CAttrsFor_DL)[0],         (CM_BLOCK),                                    TY_(ParseDefList),  NULL           },
 200   { TidyTag_DT,         "dt",         VERS_ELEM_DT,         &TY_(W3CAttrsFor_DT)[0],         (CM_DEFLIST|CM_OPT|CM_NO_INDENT),              TY_(ParseInline),   NULL           },
 201   { TidyTag_EM,         "em",         VERS_ELEM_EM,         &TY_(W3CAttrsFor_EM)[0],         (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 202   { TidyTag_FIELDSET,   "fieldset",   VERS_ELEM_FIELDSET,   &TY_(W3CAttrsFor_FIELDSET)[0],   (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 203   { TidyTag_FONT,       "font",       VERS_ELEM_FONT,       &TY_(W3CAttrsFor_FONT)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 204   /* HTML5 Form Elements has several new elements and attributes - datalist keygen output */
 205   { TidyTag_FORM,       "form",       VERS_ELEM_FORM,       &TY_(W3CAttrsFor_FORM)[0],       (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 206   { TidyTag_FRAME,      "frame",      VERS_ELEM_FRAME,      &TY_(W3CAttrsFor_FRAME)[0],      (CM_FRAMES|CM_EMPTY),                          TY_(ParseEmpty),    NULL           },
 207   { TidyTag_FRAMESET,   "frameset",   VERS_ELEM_FRAMESET,   &TY_(W3CAttrsFor_FRAMESET)[0],   (CM_HTML|CM_FRAMES),                           TY_(ParseFrameSet), NULL           },
 208   { TidyTag_H1,         "h1",         VERS_ELEM_H1,         &TY_(W3CAttrsFor_H1)[0],         (CM_BLOCK|CM_HEADING),                         TY_(ParseInline),   NULL           },
 209   { TidyTag_H2,         "h2",         VERS_ELEM_H2,         &TY_(W3CAttrsFor_H2)[0],         (CM_BLOCK|CM_HEADING),                         TY_(ParseInline),   NULL           },
 210   { TidyTag_H3,         "h3",         VERS_ELEM_H3,         &TY_(W3CAttrsFor_H3)[0],         (CM_BLOCK|CM_HEADING),                         TY_(ParseInline),   NULL           },
 211   { TidyTag_H4,         "h4",         VERS_ELEM_H4,         &TY_(W3CAttrsFor_H4)[0],         (CM_BLOCK|CM_HEADING),                         TY_(ParseInline),   NULL           },
 212   { TidyTag_H5,         "h5",         VERS_ELEM_H5,         &TY_(W3CAttrsFor_H5)[0],         (CM_BLOCK|CM_HEADING),                         TY_(ParseInline),   NULL           },
 213   { TidyTag_H6,         "h6",         VERS_ELEM_H6,         &TY_(W3CAttrsFor_H6)[0],         (CM_BLOCK|CM_HEADING),                         TY_(ParseInline),   NULL           },
 214   { TidyTag_HEAD,       "head",       VERS_ELEM_HEAD,       &TY_(W3CAttrsFor_HEAD)[0],       (CM_HTML|CM_OPT|CM_OMITST),                    TY_(ParseHead),     NULL           },
 215   { TidyTag_HR,         "hr",         VERS_ELEM_HR,         &TY_(W3CAttrsFor_HR)[0],         (CM_BLOCK|CM_EMPTY),                           TY_(ParseEmpty),    NULL           },
 216   { TidyTag_HTML,       "html",       VERS_ELEM_HTML,       &TY_(W3CAttrsFor_HTML)[0],       (CM_HTML|CM_OPT|CM_OMITST),                    TY_(ParseHTML),     CheckHTML      },
 217   { TidyTag_I,          "i",          VERS_ELEM_I,          &TY_(W3CAttrsFor_I)[0],          (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 218   { TidyTag_IFRAME,     "iframe",     VERS_ELEM_IFRAME,     &TY_(W3CAttrsFor_IFRAME)[0],     (CM_INLINE),                                   TY_(ParseBlock),    NULL           },
 219   { TidyTag_IMG,        "img",        VERS_ELEM_IMG,        &TY_(W3CAttrsFor_IMG)[0],        (CM_INLINE|CM_IMG|CM_EMPTY),                   TY_(ParseEmpty),    CheckIMG       },
 220   { TidyTag_INPUT,      "input",      VERS_ELEM_INPUT,      &TY_(W3CAttrsFor_INPUT)[0],      (CM_INLINE|CM_IMG|CM_EMPTY),                   TY_(ParseEmpty),    NULL           },
 221   { TidyTag_INS,        "ins",        VERS_ELEM_INS,        &TY_(W3CAttrsFor_INS)[0],        (CM_INLINE|CM_BLOCK|CM_MIXED),                 TY_(ParseInline),   NULL           },
 222   { TidyTag_ISINDEX,    "isindex",    VERS_ELEM_ISINDEX,    &TY_(W3CAttrsFor_ISINDEX)[0],    (CM_BLOCK|CM_EMPTY),                           TY_(ParseEmpty),    NULL           },
 223   { TidyTag_KBD,        "kbd",        VERS_ELEM_KBD,        &TY_(W3CAttrsFor_KBD)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 224   { TidyTag_LABEL,      "label",      VERS_ELEM_LABEL,      &TY_(W3CAttrsFor_LABEL)[0],      (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 225   { TidyTag_LEGEND,     "legend",     VERS_ELEM_LEGEND,     &TY_(W3CAttrsFor_LEGEND)[0],     (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 226   { TidyTag_LI,         "li",         VERS_ELEM_LI,         &TY_(W3CAttrsFor_LI)[0],         (CM_LIST|CM_OPT|CM_NO_INDENT),                 TY_(ParseBlock),    NULL           },
 227   { TidyTag_LINK,       "link",       VERS_ELEM_LINK,       &TY_(W3CAttrsFor_LINK)[0],       (CM_HEAD|CM_BLOCK|CM_EMPTY),                   TY_(ParseEmpty),    CheckLINK      },
 228   { TidyTag_LISTING,    "listing",    VERS_ELEM_LISTING,    &TY_(W3CAttrsFor_LISTING)[0],    (CM_BLOCK|CM_OBSOLETE),                        TY_(ParsePre),      NULL           },
 229   { TidyTag_MAP,        "map",        VERS_ELEM_MAP,        &TY_(W3CAttrsFor_MAP)[0],        (CM_INLINE),                                   TY_(ParseBlock),    NULL           },
 230   { TidyTag_MATHML,     "math",       VERS_ELEM_MATHML,     &TY_(W3CAttrsFor_MATHML)[0],     (CM_INLINE|CM_BLOCK|CM_MIXED),                 TY_(ParseNamespace),NULL           }, /* [i_a]2 */
 231   /* { TidyTag_MENU,       "menu",       VERS_ELEM_MENU,       &TY_(W3CAttrsFor_MENU)[0],       (CM_BLOCK|CM_OBSOLETE),                        TY_(ParseList),     NULL           }, */
 232   { TidyTag_META,       "meta",       VERS_ELEM_META,       &TY_(W3CAttrsFor_META)[0],       (CM_HEAD|CM_BLOCK|CM_EMPTY),                   TY_(ParseEmpty),    NULL           },
 233   { TidyTag_NOFRAMES,   "noframes",   VERS_ELEM_NOFRAMES,   &TY_(W3CAttrsFor_NOFRAMES)[0],   (CM_BLOCK|CM_FRAMES),                          TY_(ParseNoFrames), NULL           },
 234   { TidyTag_NOSCRIPT,   "noscript",   VERS_ELEM_NOSCRIPT,   &TY_(W3CAttrsFor_NOSCRIPT)[0],   (CM_HEAD|CM_BLOCK|CM_INLINE|CM_MIXED),         TY_(ParseBlock),    NULL           },
 235   { TidyTag_OBJECT,     "object",     VERS_ELEM_OBJECT,     &TY_(W3CAttrsFor_OBJECT)[0],     (CM_OBJECT|CM_HEAD|CM_IMG|CM_INLINE|CM_PARAM), TY_(ParseBlock),    NULL           },
 236   { TidyTag_OL,         "ol",         VERS_ELEM_OL,         &TY_(W3CAttrsFor_OL)[0],         (CM_BLOCK),                                    TY_(ParseList),     NULL           },
 237   { TidyTag_OPTGROUP,   "optgroup",   VERS_ELEM_OPTGROUP,   &TY_(W3CAttrsFor_OPTGROUP)[0],   (CM_FIELD|CM_OPT),                             TY_(ParseOptGroup), NULL           },
 238   { TidyTag_OPTION,     "option",     VERS_ELEM_OPTION,     &TY_(W3CAttrsFor_OPTION)[0],     (CM_FIELD|CM_OPT),                             TY_(ParseText),     NULL           },
 239   { TidyTag_P,          "p",          VERS_ELEM_P,          &TY_(W3CAttrsFor_P)[0],          (CM_BLOCK|CM_OPT),                             TY_(ParseInline),   NULL           },
 240   { TidyTag_PARAM,      "param",      VERS_ELEM_PARAM,      &TY_(W3CAttrsFor_PARAM)[0],      (CM_INLINE|CM_EMPTY),                          TY_(ParseEmpty),    NULL           },
 241   { TidyTag_PICTURE,    "picture",    VERS_ELEM_PICTURE,    &TY_(W3CAttrsFor_PICTURE)[0],    (CM_INLINE),                                   TY_(ParseInline),   NULL           }, /* Issue #151 html5 */
 242   { TidyTag_PLAINTEXT,  "plaintext",  VERS_ELEM_PLAINTEXT,  &TY_(W3CAttrsFor_PLAINTEXT)[0],  (CM_BLOCK|CM_OBSOLETE),                        TY_(ParsePre),      NULL           },
 243   { TidyTag_PRE,        "pre",        VERS_ELEM_PRE,        &TY_(W3CAttrsFor_PRE)[0],        (CM_BLOCK),                                    TY_(ParsePre),      NULL           },
 244   { TidyTag_Q,          "q",          VERS_ELEM_Q,          &TY_(W3CAttrsFor_Q)[0],          (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 245   { TidyTag_RB,         "rb",         VERS_ELEM_RB,         &TY_(W3CAttrsFor_RB)[0],         (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 246   { TidyTag_RBC,        "rbc",        VERS_ELEM_RBC,        &TY_(W3CAttrsFor_RBC)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 247   { TidyTag_RP,         "rp",         VERS_ELEM_RP,         &TY_(W3CAttrsFor_RP)[0],         (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 248   { TidyTag_RT,         "rt",         VERS_ELEM_RT,         &TY_(W3CAttrsFor_RT)[0],         (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 249   { TidyTag_RTC,        "rtc",        VERS_ELEM_RTC,        &TY_(W3CAttrsFor_RTC)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 250   { TidyTag_RUBY,       "ruby",       VERS_ELEM_RUBY,       &TY_(W3CAttrsFor_RUBY)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 251   { TidyTag_S,          "s",          VERS_ELEM_S,          &TY_(W3CAttrsFor_S)[0],          (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 252   { TidyTag_SAMP,       "samp",       VERS_ELEM_SAMP,       &TY_(W3CAttrsFor_SAMP)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 253   { TidyTag_SCRIPT,     "script",     VERS_ELEM_SCRIPT,     &TY_(W3CAttrsFor_SCRIPT)[0],     (CM_HEAD|CM_MIXED|CM_BLOCK|CM_INLINE),         TY_(ParseScript),   NULL           },
 254   { TidyTag_SELECT,     "select",     VERS_ELEM_SELECT,     &TY_(W3CAttrsFor_SELECT)[0],     (CM_INLINE|CM_FIELD),                          TY_(ParseSelect),   NULL           },
 255   { TidyTag_SMALL,      "small",      VERS_ELEM_SMALL,      &TY_(W3CAttrsFor_SMALL)[0],      (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 256   { TidyTag_SPAN,       "span",       VERS_ELEM_SPAN,       &TY_(W3CAttrsFor_SPAN)[0],       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 257   { TidyTag_STRIKE,     "strike",     VERS_ELEM_STRIKE,     &TY_(W3CAttrsFor_STRIKE)[0],     (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 258   { TidyTag_STRONG,     "strong",     VERS_ELEM_STRONG,     &TY_(W3CAttrsFor_STRONG)[0],     (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 259   { TidyTag_STYLE,      "style",      VERS_ELEM_STYLE,      &TY_(W3CAttrsFor_STYLE)[0],      (CM_HEAD|CM_BLOCK),                            TY_(ParseScript),   NULL           },
 260   { TidyTag_SUB,        "sub",        VERS_ELEM_SUB,        &TY_(W3CAttrsFor_SUB)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 261   { TidyTag_SUP,        "sup",        VERS_ELEM_SUP,        &TY_(W3CAttrsFor_SUP)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 262   { TidyTag_SVG,        "svg",        VERS_ELEM_SVG,        &TY_(W3CAttrsFor_SVG)[0],        (CM_INLINE|CM_BLOCK|CM_MIXED),                 TY_(ParseNamespace),NULL           },
 263   { TidyTag_TABLE,      "table",      VERS_ELEM_TABLE,      &TY_(W3CAttrsFor_TABLE)[0],      (CM_BLOCK),                                    TY_(ParseTableTag), CheckTABLE     },
 264   { TidyTag_TBODY,      "tbody",      VERS_ELEM_TBODY,      &TY_(W3CAttrsFor_TBODY)[0],      (CM_TABLE|CM_ROWGRP|CM_OPT),                   TY_(ParseRowGroup), NULL           },
 265   { TidyTag_TD,         "td",         VERS_ELEM_TD,         &TY_(W3CAttrsFor_TD)[0],         (CM_ROW|CM_OPT|CM_NO_INDENT),                  TY_(ParseBlock),    NULL           },
 266   { TidyTag_TEXTAREA,   "textarea",   VERS_ELEM_TEXTAREA,   &TY_(W3CAttrsFor_TEXTAREA)[0],   (CM_INLINE|CM_FIELD),                          TY_(ParseText),     NULL           },
 267   { TidyTag_TFOOT,      "tfoot",      VERS_ELEM_TFOOT,      &TY_(W3CAttrsFor_TFOOT)[0],      (CM_TABLE|CM_ROWGRP|CM_OPT),                   TY_(ParseRowGroup), NULL           },
 268   { TidyTag_TH,         "th",         VERS_ELEM_TH,         &TY_(W3CAttrsFor_TH)[0],         (CM_ROW|CM_OPT|CM_NO_INDENT),                  TY_(ParseBlock),    NULL           },
 269   { TidyTag_THEAD,      "thead",      VERS_ELEM_THEAD,      &TY_(W3CAttrsFor_THEAD)[0],      (CM_TABLE|CM_ROWGRP|CM_OPT),                   TY_(ParseRowGroup), NULL           },
 270   { TidyTag_TITLE,      "title",      VERS_ELEM_TITLE,      &TY_(W3CAttrsFor_TITLE)[0],      (CM_HEAD),                                     TY_(ParseTitle),    NULL           },
 271   { TidyTag_TR,         "tr",         VERS_ELEM_TR,         &TY_(W3CAttrsFor_TR)[0],         (CM_TABLE|CM_OPT),                             TY_(ParseRow),      NULL           },
 272   { TidyTag_TT,         "tt",         VERS_ELEM_TT,         &TY_(W3CAttrsFor_TT)[0],         (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 273   { TidyTag_U,          "u",          VERS_ELEM_U,          &TY_(W3CAttrsFor_U)[0],          (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 274   { TidyTag_UL,         "ul",         VERS_ELEM_UL,         &TY_(W3CAttrsFor_UL)[0],         (CM_BLOCK),                                    TY_(ParseList),     NULL           },
 275   { TidyTag_VAR,        "var",        VERS_ELEM_VAR,        &TY_(W3CAttrsFor_VAR)[0],        (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 276   { TidyTag_XMP,        "xmp",        VERS_ELEM_XMP,        &TY_(W3CAttrsFor_XMP)[0],        (CM_BLOCK|CM_OBSOLETE),                        TY_(ParsePre),      NULL           },
 277   { TidyTag_NEXTID,     "nextid",     VERS_ELEM_NEXTID,     &TY_(W3CAttrsFor_NEXTID)[0],     (CM_HEAD|CM_EMPTY),                            TY_(ParseEmpty),    NULL           },
 278
 279   /* proprietary elements */
 280   { TidyTag_ALIGN,      "align",      VERS_NETSCAPE,        NULL,                       (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 281   { TidyTag_BGSOUND,    "bgsound",    VERS_MICROSOFT,       NULL,                       (CM_HEAD|CM_EMPTY),                            TY_(ParseEmpty),    NULL           },
 282   { TidyTag_BLINK,      "blink",      VERS_PROPRIETARY,     NULL,                       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 283   { TidyTag_COMMENT,    "comment",    VERS_MICROSOFT,       NULL,                       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 284   { TidyTag_ILAYER,     "ilayer",     VERS_NETSCAPE,        NULL,                       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 285   { TidyTag_LAYER,      "layer",      VERS_NETSCAPE,        NULL,                       (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 286   { TidyTag_MARQUEE,    "marquee",    VERS_MICROSOFT,       NULL,                       (CM_INLINE|CM_OPT),                            TY_(ParseInline),   NULL           },
 287   { TidyTag_MULTICOL,   "multicol",   VERS_NETSCAPE,        NULL,                       (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 288   { TidyTag_NOBR,       "nobr",       VERS_PROPRIETARY,     NULL,                       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 289   { TidyTag_NOEMBED,    "noembed",    VERS_NETSCAPE,        NULL,                       (CM_INLINE),                                   TY_(ParseInline),   NULL           },
 290   { TidyTag_NOLAYER,    "nolayer",    VERS_NETSCAPE,        NULL,                       (CM_BLOCK|CM_INLINE|CM_MIXED),                 TY_(ParseBlock),    NULL           },
 291   { TidyTag_NOSAVE,     "nosave",     VERS_NETSCAPE,        NULL,                       (CM_BLOCK),                                    TY_(ParseBlock),    NULL           },
 292   { TidyTag_SERVER,     "server",     VERS_NETSCAPE,        NULL,                       (CM_HEAD|CM_MIXED|CM_BLOCK|CM_INLINE),         TY_(ParseScript),   NULL           },
 293   { TidyTag_SERVLET,    "servlet",    VERS_SUN,             NULL,                       (CM_OBJECT|CM_IMG|CM_INLINE|CM_PARAM),         TY_(ParseBlock),    NULL           },
 294   { TidyTag_SPACER,     "spacer",     VERS_NETSCAPE,        NULL,                       (CM_INLINE|CM_EMPTY),                          TY_(ParseEmpty),    NULL           },
 295
 296   /* HTML5 */
 297   { TidyTag_ARTICLE,     "article",      VERS_ELEM_ARTICLE,     &TY_(W3CAttrsFor_ARTICLE)[0],     (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 298   { TidyTag_ASIDE,       "aside",        VERS_ELEM_ASIDE,       &TY_(W3CAttrsFor_ASIDE)[0],       (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 299   { TidyTag_AUDIO,       "audio",        VERS_ELEM_AUDIO,       &TY_(W3CAttrsFor_AUDIO)[0],       (CM_BLOCK|CM_INLINE),          TY_(ParseBlock),     NULL           },
 300   { TidyTag_BDI,         "bdi",          VERS_ELEM_BDI,         &TY_(W3CAttrsFor_BDI)[0],         (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 301   { TidyTag_CANVAS,      "canvas",       VERS_ELEM_CANVAS,      &TY_(W3CAttrsFor_CANVAS)[0],      (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 302   { TidyTag_COMMAND,     "command",      VERS_ELEM_COMMAND,     &TY_(W3CAttrsFor_COMMAND)[0],     (CM_HEAD|CM_INLINE|CM_EMPTY),  TY_(ParseEmpty),     NULL           },
 303   { TidyTag_DATALIST,    "datalist",     VERS_ELEM_DATALIST,    &TY_(W3CAttrsFor_DATALIST)[0],    (CM_INLINE|CM_FIELD),          TY_(ParseDatalist),  NULL           },
 304   //{ TidyTag_DATALIST,    "datalist",     VERS_ELEM_DATALIST,    &TY_(W3CAttrsFor_DATALIST)[0],    (CM_FIELD),                   TY_(ParseInline),    NULL           },
 305   { TidyTag_DETAILS,     "details",      VERS_ELEM_DETAILS,     &TY_(W3CAttrsFor_DETAILS)[0],     (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 306   { TidyTag_DIALOG,      "dialog",       VERS_ELEM_DIALOG,      &TY_(W3CAttrsFor_DIALOG)[0],      (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 307   { TidyTag_EMBED,       "embed",        VERS_ELEM_EMBED,       &TY_(W3CAttrsFor_EMBED)[0],       (CM_INLINE|CM_IMG|CM_EMPTY),   TY_(ParseEmpty),     NULL           },
 308   { TidyTag_FIGCAPTION,  "figcaption",   VERS_ELEM_FIGCAPTION,  &TY_(W3CAttrsFor_FIGCAPTION)[0],  (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 309   { TidyTag_FIGURE,      "figure",       VERS_ELEM_FIGURE,      &TY_(W3CAttrsFor_FIGURE)[0],      (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 310   { TidyTag_FOOTER,      "footer",       VERS_ELEM_FOOTER,      &TY_(W3CAttrsFor_FOOTER)[0],      (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 311   { TidyTag_HEADER,      "header",       VERS_ELEM_HEADER,      &TY_(W3CAttrsFor_HEADER)[0],      (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 312   { TidyTag_HGROUP,      "hgroup",       VERS_ELEM_HGROUP,      &TY_(W3CAttrsFor_HGROUP)[0],      (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 313   { TidyTag_KEYGEN,      "keygen",       VERS_ELEM_KEYGEN,      &TY_(W3CAttrsFor_KEYGEN)[0],      (CM_INLINE|CM_EMPTY),          TY_(ParseEmpty),     NULL           },
 314   { TidyTag_MAIN,        "main",         VERS_ELEM_MAIN,        &TY_(W3CAttrsFor_MAIN)[0],        (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 315   { TidyTag_MARK,        "mark",         VERS_ELEM_MARK,        &TY_(W3CAttrsFor_MARK)[0],        (CM_INLINE),                   TY_(ParseInline),    NULL           },
 316   { TidyTag_MENU,        "menu",         VERS_ELEM_MENU,        &TY_(W3CAttrsFor_MENU)[0],        (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 317   { TidyTag_MENUITEM,    "menuitem",     VERS_ELEM_MENUITEM,    &TY_(W3CAttrsFor_MENUITEM)[0],    (CM_INLINE|CM_BLOCK|CM_MIXED), TY_(ParseInline),    NULL           },
 318   { TidyTag_METER,       "meter",        VERS_ELEM_METER,       &TY_(W3CAttrsFor_METER)[0],       (CM_INLINE),                   TY_(ParseInline),    NULL           },
 319   { TidyTag_NAV,         "nav",          VERS_ELEM_NAV,         &TY_(W3CAttrsFor_NAV)[0],         (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 320   { TidyTag_OUTPUT,      "output",       VERS_ELEM_OUTPUT,      &TY_(W3CAttrsFor_OUTPUT)[0],      (CM_INLINE),                   TY_(ParseInline),    NULL           },
 321   { TidyTag_PROGRESS,    "progress",     VERS_ELEM_PROGRESS,    &TY_(W3CAttrsFor_PROGRESS)[0],    (CM_INLINE),                   TY_(ParseInline),    NULL           },
 322   { TidyTag_SECTION,     "section",      VERS_ELEM_SECTION,     &TY_(W3CAttrsFor_SECTION)[0],     (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 323   { TidyTag_SOURCE,      "source",       VERS_ELEM_SOURCE,      &TY_(W3CAttrsFor_SOURCE)[0],      (CM_BLOCK|CM_INLINE|CM_EMPTY), TY_(ParseBlock),     NULL           },
 324   { TidyTag_SUMMARY,     "summary",      VERS_ELEM_SUMMARY,     &TY_(W3CAttrsFor_SUMMARY)[0],     (CM_BLOCK),                    TY_(ParseInline),    NULL           },
 325   { TidyTag_TEMPLATE,    "template",     VERS_ELEM_TEMPLATE,    &TY_(W3CAttrsFor_TEMPLATE)[0],    (CM_BLOCK),                    TY_(ParseBlock),     NULL           },
 326   { TidyTag_TIME,        "time",         VERS_ELEM_TIME,        &TY_(W3CAttrsFor_TIME)[0],        (CM_INLINE),                   TY_(ParseInline),    NULL           },
 327   { TidyTag_TRACK,       "track",        VERS_ELEM_TRACK,       &TY_(W3CAttrsFor_TRACK)[0],       (CM_BLOCK|CM_EMPTY),           TY_(ParseBlock),     NULL           },
 328   { TidyTag_VIDEO,       "video",        VERS_ELEM_VIDEO,       &TY_(W3CAttrsFor_VIDEO)[0],       (CM_BLOCK|CM_INLINE),          TY_(ParseBlock),     NULL           },
 329   { TidyTag_WBR,         "wbr",          VERS_ELEM_WBR,         &TY_(W3CAttrsFor_WBR)[0],         (CM_INLINE|CM_EMPTY),          TY_(ParseEmpty),     NULL           },
 330
 331   /* this must be the final entry */
 332   { (TidyTagId)0,        NULL,         0,                    NULL,                       (0),                                           NULL,          NULL           }
 333 };
 334
 335 #if ELEMENT_HASH_LOOKUP
 336 static uint tagsHash(ctmbstr s)
 337 {
 338     uint hashval;
 339
 340     for (hashval = 0; *s != '\0'; s++)
 341         hashval = *s + 31*hashval;
 342
 343     return hashval % ELEMENT_HASH_SIZE;
 344 }
 345
 346 static const Dict *tagsInstall(TidyDocImpl* doc, TidyTagImpl* tags, const Dict* old)
 347 {
 348     DictHash *np;
 349     uint hashval;
 350
 351     if (old)
 352     {
 353         np = (DictHash *)TidyDocAlloc(doc, sizeof(*np));
 354         np->tag = old;
 355
 356         hashval = tagsHash(old->name);
 357         np->next = tags->hashtab[hashval];
 358         tags->hashtab[hashval] = np;
 359     }
 360
 361     return old;
 362 }
 363
 364 static void tagsRemoveFromHash( TidyDocImpl* doc, TidyTagImpl* tags, ctmbstr s )
 365 {
 366     uint h = tagsHash(s);
 367     DictHash *p, *prev = NULL;
 368     for (p = tags->hashtab[h]; p && p->tag; p = p->next)
 369     {
 370         if (TY_(tmbstrcmp)(s, p->tag->name) == 0)
 371         {
 372             DictHash* next = p->next;
 373             if ( prev )
 374                 prev->next = next;
 375             else
 376                 tags->hashtab[h] = next;
 377             TidyDocFree(doc, p);
 378             return;
 379         }
 380         prev = p;
 381     }
 382 }
 383
 384 static void tagsEmptyHash( TidyDocImpl* doc, TidyTagImpl* tags )
 385 {
 386     uint i;
 387     DictHash *prev, *next;
 388
 389     for (i = 0; i < ELEMENT_HASH_SIZE; ++i)
 390     {
 391         prev = NULL;
 392         next = tags->hashtab[i];
 393
 394         while(next)
 395         {
 396             prev = next->next;
 397             TidyDocFree(doc, next);
 398             next = prev;
 399         }
 400
 401         tags->hashtab[i] = NULL;
 402     }
 403 }
 404 #endif /* ELEMENT_HASH_LOOKUP */
 405
 406 static const Dict* tagsLookup( TidyDocImpl* doc, TidyTagImpl* tags, ctmbstr s )
 407 {
 408     const Dict *np;
 409 #if ELEMENT_HASH_LOOKUP
 410     const DictHash* p;
 411 #endif
 412
 413     if (!s)
 414         return NULL;
 415
 416 #if ELEMENT_HASH_LOOKUP
 417     /* this breaks if declared elements get changed between two   */
 418     /* parser runs since Tidy would use the cached version rather */
 419     /* than the new one.                                          */
 420     /* However, as FreeDeclaredTags() correctly cleans the hash   */
 421     /* this should not be true anymore.                           */
 422     for (p = tags->hashtab[tagsHash(s)]; p && p->tag; p = p->next)
 423         if (TY_(tmbstrcmp)(s, p->tag->name) == 0)
 424             return p->tag;
 425
 426     for (np = tag_defs + 1; np < tag_defs + N_TIDY_TAGS; ++np)
 427         if (TY_(tmbstrcmp)(s, np->name) == 0)
 428             return tagsInstall(doc, tags, np);
 429
 430     for (np = tags->declared_tag_list; np; np = np->next)
 431         if (TY_(tmbstrcmp)(s, np->name) == 0)
 432             return tagsInstall(doc, tags, np);
 433 #else
 434
 435     for (np = tag_defs + 1; np < tag_defs + N_TIDY_TAGS; ++np)
 436         if (TY_(tmbstrcmp)(s, np->name) == 0)
 437             return np;
 438
 439     for (np = tags->declared_tag_list; np; np = np->next)
 440         if (TY_(tmbstrcmp)(s, np->name) == 0)
 441             return np;
 442
 443 #endif /* ELEMENT_HASH_LOOKUP */
 444
 445     return NULL;
 446 }
 447
 448 static Dict* NewDict( TidyDocImpl* doc, ctmbstr name )
 449 {
 450     Dict *np = (Dict*) TidyDocAlloc( doc, sizeof(Dict) );
 451     np->id = TidyTag_UNKNOWN;
 452     np->name = name ? TY_(tmbstrdup)( doc->allocator, name ) : NULL;
 453     np->versions = VERS_UNKNOWN;
 454     np->attrvers = NULL;
 455     np->model = CM_UNKNOWN;
 456     np->parser = 0;
 457     np->chkattrs = 0;
 458     np->next = NULL;
 459     return np;
 460 }
 461
 462 static void FreeDict( TidyDocImpl* doc, Dict *d )
 463 {
 464     if ( d )
 465         TidyDocFree( doc, d->name );
 466     TidyDocFree( doc, d );
 467 }
 468
 469 static void declare( TidyDocImpl* doc, TidyTagImpl* tags,
 470                      ctmbstr name, uint versions, uint model,
 471                      Parser *parser, CheckAttribs *chkattrs )
 472 {
 473     if ( name )
 474     {
 475         Dict* np = (Dict*) tagsLookup( doc, tags, name );
 476         if ( np == NULL )
 477         {
 478             np = NewDict( doc, name );
 479             np->next = tags->declared_tag_list;
 480             tags->declared_tag_list = np;
 481         }
 482
 483         /* Make sure we are not over-writing predefined tags */
 484         if ( np->id == TidyTag_UNKNOWN )
 485         {
 486           np->versions = versions;
 487           np->model   |= model;
 488           np->parser   = parser;
 489           np->chkattrs = chkattrs;
 490           np->attrvers = NULL;
 491         }
 492     }
 493 }
 494
 495 #if !defined(NDEBUG) && defined(_MSC_VER)
 496 /* ====================================================================
 497    MSVC DEBUG ONLY
 498  */
 499 void ListElementsPerVersion( uint vers, Bool has )
 500 {
 501     uint val, cnt, total, wrap = 10;
 502     const Dict *np = tag_defs + 1;
 503     const Dict *end = tag_defs + N_TIDY_TAGS;
 504     cnt = 0;
 505     total = 0;
 506     for ( ; np < end; np++) {
 507         val = (np->versions & vers);
 508         if (has) {
 509             if (val) {
 510                 SPRTF("%s ",np->name);
 511                 cnt++;
 512                 total++;
 513             }
 514         } else {
 515             if (!val) {
 516                 SPRTF("%s ",np->name);
 517                 cnt++;
 518                 total++;
 519             }
 520         }
 521         if (cnt == wrap) {
 522             SPRTF("\n");
 523             cnt = 0;
 524         }
 525     }
 526     if (cnt)
 527         SPRTF("\n");
 528     SPRTF("Listed total %u tags that %s version %u\n", total,
 529         (has ? "have" : "do not have"),
 530         vers );
 531
 532 }
 533
 534 void show_not_html5(void)
 535 {
 536     SPRTF("List tags that do not have version HTML5 (HT50|XH50)\n"),
 537     ListElementsPerVersion( VERS_HTML5, no );
 538 }
 539 void show_have_html5(void)
 540 {
 541     ListElementsPerVersion( VERS_HTML5, yes );
 542 }
 543
 544 #endif
 545
 546 /* public interface for finding tag by name */
 547 Bool TY_(FindTag)( TidyDocImpl* doc, Node *node )
 548 {
 549     const Dict *np = NULL;
 550     if ( cfgBool(doc, TidyXmlTags) )
 551     {
 552         node->tag = doc->tags.xml_tags;
 553         return yes;
 554     }
 555
 556     if ( node->element && (np = tagsLookup(doc, &doc->tags, node->element)) )
 557     {
 558         node->tag = np;
 559         return yes;
 560     }
 561
 562     return no;
 563 }
 564
 565 const Dict* TY_(LookupTagDef)( TidyTagId tid )
 566 {
 567     const Dict *np;
 568
 569     for (np = tag_defs + 1; np < tag_defs + N_TIDY_TAGS; ++np )
 570         if (np->id == tid)
 571             return np;
 572
 573     return NULL;
 574 }
 575
 576 Parser* TY_(FindParser)( TidyDocImpl* doc, Node *node )
 577 {
 578     const Dict* np = tagsLookup( doc, &doc->tags, node->element );
 579     if ( np )
 580         return np->parser;
 581     return NULL;
 582 }
 583
 584 void TY_(DefineTag)( TidyDocImpl* doc, UserTagType tagType, ctmbstr name )
 585 {
 586     Parser* parser = 0;
 587     uint cm = CM_UNKNOWN;
 588     uint vers = VERS_PROPRIETARY;
 589
 590     switch (tagType)
 591     {
 592     case tagtype_empty:
 593         cm = CM_EMPTY|CM_NO_INDENT|CM_NEW;
 594         parser = TY_(ParseBlock);
 595         break;
 596
 597     case tagtype_inline:
 598         cm = CM_INLINE|CM_NO_INDENT|CM_NEW;
 599         parser = TY_(ParseInline);
 600         break;
 601
 602     case tagtype_block:
 603         cm = CM_BLOCK|CM_NO_INDENT|CM_NEW;
 604         parser = TY_(ParseBlock);
 605         break;
 606
 607     case tagtype_pre:
 608         cm = CM_BLOCK|CM_NO_INDENT|CM_NEW;
 609         parser = TY_(ParsePre);
 610         break;
 611
 612     case tagtype_null:
 613         break;
 614     }
 615     if ( cm && parser )
 616         declare( doc, &doc->tags, name, vers, cm, parser, 0 );
 617 }
 618
 619 TidyIterator   TY_(GetDeclaredTagList)( TidyDocImpl* doc )
 620 {
 621     return (TidyIterator) doc->tags.declared_tag_list;
 622 }
 623
 624 ctmbstr        TY_(GetNextDeclaredTag)( TidyDocImpl* ARG_UNUSED(doc),
 625                                         UserTagType tagType, TidyIterator* iter )
 626 {
 627     ctmbstr name = NULL;
 628     Dict* curr;
 629     for ( curr = (Dict*) *iter; name == NULL && curr != NULL; curr = curr->next )
 630     {
 631         switch ( tagType )
 632         {
 633         case tagtype_empty:
 634             if ( (curr->model & CM_EMPTY) != 0 )
 635                 name = curr->name;
 636             break;
 637
 638         case tagtype_inline:
 639             if ( (curr->model & CM_INLINE) != 0 )
 640                 name = curr->name;
 641             break;
 642
 643         case tagtype_block:
 644             if ( (curr->model & CM_BLOCK) != 0 &&
 645                  curr->parser == TY_(ParseBlock) )
 646                 name = curr->name;
 647             break;
 648
 649         case tagtype_pre:
 650             if ( (curr->model & CM_BLOCK) != 0 &&
 651                  curr->parser == TY_(ParsePre) )
 652                 name = curr->name;
 653             break;
 654
 655         case tagtype_null:
 656             break;
 657         }
 658     }
 659     *iter = (TidyIterator) curr;
 660     return name;
 661 }
 662
 663 void TY_(InitTags)( TidyDocImpl* doc )
 664 {
 665     Dict* xml;
 666     TidyTagImpl* tags = &doc->tags;
 667
 668     TidyClearMemory( tags, sizeof(TidyTagImpl) );
 669
 670     /* create dummy entry for all xml tags */
 671     xml =  NewDict( doc, NULL );
 672     xml->versions = VERS_XML;
 673     xml->model = CM_BLOCK;
 674     xml->parser = 0;
 675     xml->chkattrs = 0;
 676     xml->attrvers = NULL;
 677     tags->xml_tags = xml;
 678 }
 679
 680 /* By default, zap all of them.  But allow
 681 ** an single type to be specified.
 682 */
 683 void TY_(FreeDeclaredTags)( TidyDocImpl* doc, UserTagType tagType )
 684 {
 685     TidyTagImpl* tags = &doc->tags;
 686     Dict *curr, *next = NULL, *prev = NULL;
 687
 688     for ( curr=tags->declared_tag_list; curr; curr = next )
 689     {
 690         Bool deleteIt = yes;
 691         next = curr->next;
 692         switch ( tagType )
 693         {
 694         case tagtype_empty:
 695             deleteIt = ( curr->model & CM_EMPTY ) != 0;
 696             break;
 697
 698         case tagtype_inline:
 699             deleteIt = ( curr->model & CM_INLINE ) != 0;
 700             break;
 701
 702         case tagtype_block:
 703             deleteIt = ( (curr->model & CM_BLOCK) != 0 &&
 704                          curr->parser == TY_(ParseBlock) );
 705             break;
 706
 707         case tagtype_pre:
 708             deleteIt = ( (curr->model & CM_BLOCK) != 0 &&
 709                          curr->parser == TY_(ParsePre) );
 710             break;
 711
 712         case tagtype_null:
 713             break;
 714         }
 715
 716         if ( deleteIt )
 717         {
 718 #if ELEMENT_HASH_LOOKUP
 719           tagsRemoveFromHash( doc, &doc->tags, curr->name );
 720 #endif
 721           FreeDict( doc, curr );
 722           if ( prev )
 723             prev->next = next;
 724           else
 725             tags->declared_tag_list = next;
 726         }
 727         else
 728           prev = curr;
 729     }
 730 }
 731
 732 /*\
 733  * Issue #167 & #169
 734  * Tidy defaults to HTML5 mode
 735  * If the <!DOCTYPE ...> is found to NOT be HTML5,
 736  * then adjust tags to HTML4 mode
 737  * At present only TidyTag_A, but could apply to others
 738 \*/
 739 void TY_(AdjustTags)( TidyDocImpl *doc )
 740 {
 741     Dict *np = (Dict *)TY_(LookupTagDef)( TidyTag_A );
 742     TidyTagImpl* tags = &doc->tags;
 743     if (np)
 744     {
 745         np->parser = TY_(ParseInline);
 746         np->model  = CM_INLINE;
 747 #if ELEMENT_HASH_LOOKUP
 748         tagsEmptyHash( doc, tags );
 749 #endif
 750     }
 751
 752 /*\
 753  * Issue #196
 754  * TidyTag_CAPTION allows %flow; in HTML5,
 755  * but only %inline; in HTML4
 756 \*/
 757     np = (Dict *)TY_(LookupTagDef)( TidyTag_CAPTION );
 758     if (np)
 759     {
 760         np->parser = TY_(ParseInline);
 761 #if ELEMENT_HASH_LOOKUP
 762         tagsEmptyHash( doc, tags );
 763 #endif
 764     }
 765 }
 766
 767 void TY_(FreeTags)( TidyDocImpl* doc )
 768 {
 769     TidyTagImpl* tags = &doc->tags;
 770
 771 #if ELEMENT_HASH_LOOKUP
 772     tagsEmptyHash( doc, tags );
 773 #endif
 774     TY_(FreeDeclaredTags)( doc, tagtype_null );
 775     FreeDict( doc, tags->xml_tags );
 776
 777     /* get rid of dangling tag references */
 778     TidyClearMemory( tags, sizeof(TidyTagImpl) );
 779 }
 780
 781
 782 /* default method for checking an element's attributes */
 783 void TY_(CheckAttributes)( TidyDocImpl* doc, Node *node )
 784 {
 785     AttVal *next, *attval = node->attributes;
 786     while (attval)
 787     {
 788         next = attval->next;
 789         TY_(CheckAttribute)( doc, node, attval );
 790         attval = next;
 791     }
 792 }
 793
 794 /* methods for checking attributes for specific elements */
 795
 796 void CheckIMG( TidyDocImpl* doc, Node *node )
 797 {
 798     Bool HasAlt = TY_(AttrGetById)(node, TidyAttr_ALT) != NULL;
 799     Bool HasSrc = TY_(AttrGetById)(node, TidyAttr_SRC) != NULL;
 800     Bool HasUseMap = TY_(AttrGetById)(node, TidyAttr_USEMAP) != NULL;
 801     Bool HasIsMap = TY_(AttrGetById)(node, TidyAttr_ISMAP) != NULL;
 802     Bool HasDataFld = TY_(AttrGetById)(node, TidyAttr_DATAFLD) != NULL;
 803
 804     TY_(CheckAttributes)(doc, node);
 805
 806     if ( !HasAlt )
 807     {
 808         if ( cfg(doc, TidyAccessibilityCheckLevel) == 0 )
 809         {
 810             doc->badAccess |= BA_MISSING_IMAGE_ALT;
 811             TY_(ReportMissingAttr)( doc, node, "alt" );
 812         }
 813
 814         if ( cfgStr(doc, TidyAltText) )
 815             TY_(AddAttribute)( doc, node, "alt", cfgStr(doc, TidyAltText) );
 816     }
 817
 818     if ( !HasSrc && !HasDataFld )
 819         TY_(ReportMissingAttr)( doc, node, "src" );
 820
 821     if ( cfg(doc, TidyAccessibilityCheckLevel) == 0 )
 822     {
 823         if ( HasIsMap && !HasUseMap )
 824             TY_(ReportAttrError)( doc, node, NULL, MISSING_IMAGEMAP);
 825     }
 826 }
 827
 828 void CheckCaption(TidyDocImpl* doc, Node *node)
 829 {
 830     AttVal *attval;
 831
 832     TY_(CheckAttributes)(doc, node);
 833
 834     attval = TY_(AttrGetById)(node, TidyAttr_ALIGN);
 835
 836     if (!AttrHasValue(attval))
 837         return;
 838
 839     if (AttrValueIs(attval, "left") || AttrValueIs(attval, "right"))
 840         TY_(ConstrainVersion)(doc, VERS_HTML40_LOOSE);
 841     else if (AttrValueIs(attval, "top") || AttrValueIs(attval, "bottom"))
 842         TY_(ConstrainVersion)(doc, ~(VERS_HTML20|VERS_HTML32));
 843     else
 844         TY_(ReportAttrError)(doc, node, attval, BAD_ATTRIBUTE_VALUE);
 845 }
 846
 847 void CheckHTML( TidyDocImpl* doc, Node *node )
 848 {
 849     TY_(CheckAttributes)(doc, node);
 850 }
 851
 852 void CheckAREA( TidyDocImpl* doc, Node *node )
 853 {
 854     Bool HasAlt = TY_(AttrGetById)(node, TidyAttr_ALT) != NULL;
 855     Bool HasHref = TY_(AttrGetById)(node, TidyAttr_HREF) != NULL;
 856     Bool HasNohref = TY_(AttrGetById)(node, TidyAttr_NOHREF) != NULL;
 857
 858     TY_(CheckAttributes)(doc, node);
 859
 860     if ( !HasAlt )
 861     {
 862         if ( cfg(doc, TidyAccessibilityCheckLevel) == 0 )
 863         {
 864             doc->badAccess |= BA_MISSING_LINK_ALT;
 865             TY_(ReportMissingAttr)( doc, node, "alt" );
 866         }
 867     }
 868
 869     if ( !HasHref && !HasNohref )
 870         TY_(ReportMissingAttr)( doc, node, "href" );
 871 }
 872
 873 void CheckTABLE( TidyDocImpl* doc, Node *node )
 874 {
 875     AttVal* attval;
 876
 877     TY_(CheckAttributes)(doc, node);
 878
 879     /* convert <table border> to <table border="1"> */
 880     if ( cfgBool(doc, TidyXmlOut) && (attval = TY_(AttrGetById)(node, TidyAttr_BORDER)) )
 881     {
 882         if (attval->value == NULL)
 883             attval->value = TY_(tmbstrdup)(doc->allocator, "1");
 884     }
 885 }
 886
 887 /* report missing href attribute; report missing rel attribute */
 888 void CheckLINK( TidyDocImpl* doc, Node *node )
 889 {
 890     Bool HasHref = TY_(AttrGetById)(node, TidyAttr_HREF) != NULL;
 891     Bool HasRel = TY_(AttrGetById)(node, TidyAttr_REL) != NULL;
 892     Bool HasItemprop = TY_(AttrGetById)(node, TidyAttr_ITEMPROP) != NULL;
 893
 894     if (!HasHref)
 895     {
 896       TY_(ReportMissingAttr)( doc, node, "href" );
 897     }
 898
 899     if (!HasItemprop && !HasRel)
 900     {
 901       TY_(ReportMissingAttr)( doc, node, "rel" );
 902     }
 903 }
 904
 905 Bool TY_(nodeIsText)( Node* node )
 906 {
 907   return ( node && node->type == TextNode );
 908 }
 909
 910 Bool TY_(nodeHasText)( TidyDocImpl* doc, Node* node )
 911 {
 912   if ( doc && node )
 913   {
 914     uint ix;
 915     Lexer* lexer = doc->lexer;
 916     for ( ix = node->start; ix < node->end; ++ix )
 917     {
 918         /* whitespace */
 919         if ( !TY_(IsWhite)( lexer->lexbuf[ix] ) )
 920             return yes;
 921     }
 922   }
 923   return no;
 924 }
 925
 926 Bool TY_(nodeIsElement)( Node* node )
 927 {
 928   return ( node &&
 929            (node->type == StartTag || node->type == StartEndTag) );
 930 }
 931
 932 #if 0
 933 /* Compare & result to operand.  If equal, then all bits
 934 ** requested are set.
 935 */
 936 Bool nodeMatchCM( Node* node, uint contentModel )
 937 {
 938   return ( node && node->tag &&
 939            (node->tag->model & contentModel) == contentModel );
 940 }
 941 #endif
 942
 943 /* True if any of the bits requested are set.
 944 */
 945 Bool TY_(nodeHasCM)( Node* node, uint contentModel )
 946 {
 947   return ( node && node->tag &&
 948            (node->tag->model & contentModel) != 0 );
 949 }
 950
 951 Bool TY_(nodeCMIsBlock)( Node* node )
 952 {
 953   return TY_(nodeHasCM)( node, CM_BLOCK );
 954 }
 955 Bool TY_(nodeCMIsInline)( Node* node )
 956 {
 957   return TY_(nodeHasCM)( node, CM_INLINE );
 958 }
 959 Bool TY_(nodeCMIsEmpty)( Node* node )
 960 {
 961   return TY_(nodeHasCM)( node, CM_EMPTY );
 962 }
 963
 964 Bool TY_(nodeIsHeader)( Node* node )
 965 {
 966     TidyTagId tid = TagId( node  );
 967     return ( tid && (
 968              tid == TidyTag_H1 ||
 969              tid == TidyTag_H2 ||
 970              tid == TidyTag_H3 ||
 971              tid == TidyTag_H4 ||
 972              tid == TidyTag_H5 ||
 973              tid == TidyTag_H6 ));
 974 }
 975
 976 uint TY_(nodeHeaderLevel)( Node* node )
 977 {
 978     TidyTagId tid = TagId( node  );
 979     switch ( tid )
 980     {
 981     case TidyTag_H1:
 982         return 1;
 983     case TidyTag_H2:
 984         return 2;
 985     case TidyTag_H3:
 986         return 3;
 987     case TidyTag_H4:
 988         return 4;
 989     case TidyTag_H5:
 990         return 5;
 991     case TidyTag_H6:
 992         return 6;
 993     default:
 994     {
 995         /* fall through */
 996     }
 997     }
 998     return 0;
 999 }
1000
1001 /* [i_a] generic node tree traversal; see also <tidy-int.h> */
1002 NodeTraversalSignal TY_(TraverseNodeTree)(TidyDocImpl* doc, Node* node, NodeTraversalCallBack *cb, void *propagate )
1003 {
1004     while (node)
1005     {
1006         NodeTraversalSignal s = (*cb)(doc, node, propagate);
1007
1008         if (node->content && (s == ContinueTraversal || s == SkipSiblings))
1009         {
1010             s = TY_(TraverseNodeTree)(doc, node->content, cb, propagate);
1011         }
1012
1013         switch (s)
1014         {
1015         case ExitTraversal:
1016             return ExitTraversal;
1017
1018         case VisitParent:
1019             node = node->parent;
1020             continue;
1021
1022         case SkipSiblings:
1023         case SkipChildrenAndSiblings:
1024             return ContinueTraversal;
1025
1026         default:
1027             node = node->next;
1028             break;
1029         }
1030     }
1031     return ContinueTraversal;
1032 }
1033
1034
1035
1036 /*
1037  * local variables:
1038  * mode: c
1039  * indent-tabs-mode: nil
1040  * c-basic-offset: 4
1041  * eval: (c-set-offset 'substatement-open 0)
1042  * end:
1043  */