File: localize.c

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/* localize.c -- text strings and routines to handle errors and general messages

  (c) 1998-2007 (W3C) MIT, ERCIM, Keio University
  Portions Copyright University of Toronto
  See tidy.h and access.h for the copyright notice.

  You should only need to edit this file and tidy.c
  to localize HTML tidy. *** This needs checking ***
  
  CVS Info :

    $Author: arnaud02 $ 
    $Date: 2007/11/06 11:59:14 $ 
    $Revision: 1.177 $ 

*/

#include "tidy-int.h"
#include "lexer.h"
#include "streamio.h"
#include "message.h"
#include "tmbstr.h"
#include "utf8.h"

/* used to point to Web Accessibility Guidelines */
#define ACCESS_URL  "http://www.w3.org/WAI/GL"

/* points to the Adaptive Technology Resource Centre at the
** University of Toronto
*/
#define ATRC_ACCESS_URL  "http://www.aprompt.ca/Tidy/accessibilitychecks.html"

#include "version.h"

ctmbstr TY_(ReleaseDate)(void)
{
  return TY_(release_date);
}

static struct _msgfmt
{
    uint code;
    ctmbstr fmt;
} const msgFormat[] = 
{
/* ReportEncodingWarning */
  { ENCODING_MISMATCH,            "specified input encoding (%s) does not match actual input encoding (%s)" }, /* Warning */

/* ReportEncodingError */
  { VENDOR_SPECIFIC_CHARS,        "%s invalid character code %s"                                            }, /* Error */
  { INVALID_SGML_CHARS,           "%s invalid character code %s"                                            }, /* Error */
  { INVALID_UTF8,                 "%s invalid UTF-8 bytes (char. code %s)"                                  }, /* Error */
  { INVALID_UTF16,                "%s invalid UTF-16 surrogate pair (char. code %s)"                        }, /* Error */
  { INVALID_NCR,                  "%s invalid numeric character reference %s"                               }, /* Error */

/* ReportEntityError */
  { MISSING_SEMICOLON,            "entity \"%s\" doesn't end in ';'"                                        }, /* Warning in HTML, Error in XML/XHTML */
  { MISSING_SEMICOLON_NCR,        "numeric character reference \"%s\" doesn't end in ';'"                   }, /* Warning in HTML, Error in XML/XHTML */
  { UNESCAPED_AMPERSAND,          "unescaped & which should be written as &"                            }, /* Warning in HTML, Error in XHTML */
  { UNKNOWN_ENTITY,               "unescaped & or unknown entity \"%s\""                                    }, /* Error */
  { APOS_UNDEFINED,               "named entity ' only defined in XML/XHTML"                           }, /* Error in HTML (should only occur for HTML input) */

/* ReportAttrError */

  /* attribute name */
  { INSERTING_ATTRIBUTE,          "%s inserting \"%s\" attribute"                                           }, /* Warning in CheckLINK, Error otherwise */
  { MISSING_ATTR_VALUE,           "%s attribute \"%s\" lacks value"                                         }, /* Warning in CheckUrl, Error otherwise */
  { UNKNOWN_ATTRIBUTE,            "%s unknown attribute \"%s\""                                             }, /* Error */
  { PROPRIETARY_ATTRIBUTE,        "%s proprietary attribute \"%s\""                                         }, /* Error */
  { JOINING_ATTRIBUTE,            "%s joining values of repeated attribute \"%s\""                          }, /* Error */
  { XML_ATTRIBUTE_VALUE,          "%s has XML attribute \"%s\""                                             }, /* Error (but deprecated) */

  /* attribute value */
  { XML_ID_SYNTAX,                "%s ID \"%s\" uses XML ID syntax"                                         }, /* Warning if XHTML, Error if HTML */
  { ATTR_VALUE_NOT_LCASE,         "%s attribute value \"%s\" must be lower case for XHTML"                  }, /* Error if XHTML input, Notice if HTML input and XHTML outout */
  { PROPRIETARY_ATTR_VALUE,       "%s proprietary attribute value \"%s\""                                   }, /* Error */
  { ANCHOR_NOT_UNIQUE,            "%s anchor \"%s\" already defined"                                        }, /* Error */

  /* attribute name, attribute value */
  { BAD_ATTRIBUTE_VALUE,          "%s attribute \"%s\" has invalid value \"%s\""                            }, /* Error */
  { BAD_ATTRIBUTE_VALUE_REPLACED, "%s attribute \"%s\" had invalid value \"%s\" and has been replaced"      }, /* Error */
  { INVALID_ATTRIBUTE,            "%s attribute name \"%s\" (value=\"%s\") is invalid"                      }, /* Error */

  /* attribute value, attribute name */
  { REPEATED_ATTRIBUTE,           "%s dropping value \"%s\" for repeated attribute \"%s\""                  }, /* Error */

  /* no arguments */
  { INVALID_XML_ID,               "%s cannot copy name attribute to id"                                     }, /* Warning */
  { UNEXPECTED_GT,                "%s missing '>' for end of tag"                                           }, /* Warning if HTML, Error if XML/XHTML */
  { UNEXPECTED_QUOTEMARK,         "%s unexpected or duplicate quote mark"                                   }, /* Error */
  { MISSING_QUOTEMARK,            "%s attribute with missing trailing quote mark"                           }, /* Error */
  { UNEXPECTED_END_OF_FILE_ATTR,  "%s end of file while parsing attributes"                                 }, /* Error */
  { ID_NAME_MISMATCH,             "%s id and name attribute value mismatch"                                 }, /* Error */
  { BACKSLASH_IN_URI,             "%s URI reference contains backslash. Typo?"                              }, /* Error */
  { FIXED_BACKSLASH,              "%s converting backslash in URI to slash"                                 }, /* Error */
  { ILLEGAL_URI_REFERENCE,        "%s improperly escaped URI reference"                                     }, /* Error */
  { ESCAPED_ILLEGAL_URI,          "%s escaping malformed URI reference"                                     }, /* Error */
  { NEWLINE_IN_URI,               "%s discarding newline in URI reference"                                  }, /* Error */
  { WHITE_IN_URI,                 "%s discarding whitespace in URI reference"                               }, /* Error */
  { UNEXPECTED_EQUALSIGN,         "%s unexpected '=', expected attribute name"                              }, /* Error */
  { MISSING_IMAGEMAP,             "%s should use client-side image map"                                     }, /* Warning (but deprecated) */

/* ReportMissingAttr */
  { MISSING_ATTRIBUTE,            "%s lacks \"%s\" attribute"                                               }, /* Error */
/* ReportWarning */
  { NESTED_EMPHASIS,              "nested emphasis %s"                                                      }, /* Warning */
  { NESTED_QUOTATION,             "nested q elements, possible typo."                                       }, /* Warning */
  { OBSOLETE_ELEMENT,             "replacing obsolete element %s by %s"                                     }, /* Warning */
  { COERCE_TO_ENDTAG_WARN,        "<%s> is probably intended as </%s>"                                      }, /* Warning */

/* ReportNotice */
  { TRIM_EMPTY_ELEMENT,           "trimming empty %s"                                                       }, /* Notice */
  { REPLACING_ELEMENT,            "replacing %s by %s"                                                      }, /* Notice */

/* ReportError */
  { COERCE_TO_ENDTAG,             "<%s> is probably intended as </%s>"                                      }, /* Error */
  { REPLACING_UNEX_ELEMENT,       "replacing unexpected %s by %s"                                           }, /* Error */
  { MISSING_ENDTAG_FOR,           "missing </%s>"                                                           }, /* Error */
  { MISSING_ENDTAG_BEFORE,        "missing </%s> before %s"                                                 }, /* Error */
  { DISCARDING_UNEXPECTED,        "discarding unexpected %s"                                                }, /* Error */
  { NON_MATCHING_ENDTAG,          "replacing unexpected %s by </%s>"                                        }, /* Error */
  { TAG_NOT_ALLOWED_IN,           "%s isn't allowed in <%s> elements"                                       }, /* Error */
  { MISSING_STARTTAG,             "missing <%s>"                                                            }, /* Error */
  { UNEXPECTED_ENDTAG,            "unexpected </%s>"                                                }, /* Error */
  { TOO_MANY_ELEMENTS,            "too many %s elements"                                            }, /* Error */
  { USING_BR_INPLACE_OF,          "using <br> in place of %s"                                               }, /* Error */
  { INSERTING_TAG,                "inserting implicit <%s>"                                                 }, /* Error */
  { CANT_BE_NESTED,               "%s can't be nested"                                                      }, /* Error */
  { PROPRIETARY_ELEMENT,          "%s is not approved by W3C"                                               }, /* Error */
  { ILLEGAL_NESTING,              "%s shouldn't be nested"                                                  }, /* Error */
  { NOFRAMES_CONTENT,             "%s not inside 'noframes' element"                                        }, /* Error */
  { UNEXPECTED_END_OF_FILE,       "unexpected end of file %s"                                               }, /* Error */
  { ELEMENT_NOT_EMPTY,            "%s element not empty or not closed"                                      }, /* Error */
  { UNEXPECTED_ENDTAG_IN,         "unexpected </%s> in <%s>"                                                }, /* Error */
  { TOO_MANY_ELEMENTS_IN,         "too many %s elements in <%s>"                                            }, /* Error */
  { UNESCAPED_ELEMENT,            "unescaped %s in pre content"                                             }, /* Error (but deprecated) */

  /* no arguments */
  { DOCTYPE_AFTER_TAGS,           "<!DOCTYPE> isn't allowed after elements"                                 }, /* Error */
  { MISSING_TITLE_ELEMENT,        "inserting missing 'title' element"                                       }, /* Error */
  { INCONSISTENT_VERSION,         "HTML DOCTYPE doesn't match content"                                      }, /* Error */
  { MISSING_DOCTYPE,              "missing <!DOCTYPE> declaration"                                          }, /* Error */
  { CONTENT_AFTER_BODY,           "content occurs after end of body"                                        }, /* Error */
  { MALFORMED_COMMENT,            "adjacent hyphens within comment"                                         }, /* Error */
  { BAD_COMMENT_CHARS,            "expecting -- or >"                                                       }, /* Error */
  { BAD_CDATA_CONTENT,            "'<' + '/' + letter not allowed here"                                     }, /* Error */
  { INCONSISTENT_NAMESPACE,       "HTML namespace doesn't match content"                                    }, /* Error */
  { SPACE_PRECEDING_XMLDECL,      "removing whitespace preceding XML Declaration"                           }, /* Error */
  { MALFORMED_DOCTYPE,            "discarding malformed <!DOCTYPE>"                                         }, /* Error */
  { BAD_XML_COMMENT,              "XML comments can't contain --"                                           }, /* Error (but deprecated) */
  { DTYPE_NOT_UPPER_CASE,         "SYSTEM, PUBLIC, W3C, DTD, EN must be upper case"                         }, /* Error (but deprecated) */
  { ENCODING_IO_CONFLICT,         "Output encoding does not work with standard output"                      }, /* Error (but deprecated) */

/* ReportFatal */
  { SUSPECTED_MISSING_QUOTE,      "missing quote mark for attribute value"                                  }, /* Error? (not really sometimes) */
  { DUPLICATE_FRAMESET,           "repeated FRAMESET element"                                               }, /* Error */
  { UNKNOWN_ELEMENT,              "%s is not recognized!"                                                   }, /* Error */
  { UNEXPECTED_ENDTAG,            "unexpected </%s>"                                                }, /* Error */

/* */
  { PREVIOUS_LOCATION,            "<%s> previously mentioned"                                               }, /* Info */

#if SUPPORT_ACCESSIBILITY_CHECKS

/* ReportAccess */
/* 
    List of error/warning messages.  The error code corresponds to
    the check that is listed in the AERT (HTML specifications).
*/
  { IMG_MISSING_ALT,                               "[1.1.1.1]: <img> missing 'alt' text."                                     }, /* Access */
  { IMG_ALT_SUSPICIOUS_FILENAME,                   "[1.1.1.2]: suspicious 'alt' text (filename)."                             }, /* Access */
  { IMG_ALT_SUSPICIOUS_FILE_SIZE,                  "[1.1.1.3]: suspicious 'alt' text (file size)."                            }, /* Access */
  { IMG_ALT_SUSPICIOUS_PLACEHOLDER,                "[1.1.1.4]: suspicious 'alt' text (placeholder)."                          }, /* Access */
  { IMG_ALT_SUSPICIOUS_TOO_LONG,                   "[1.1.1.10]: suspicious 'alt' text (too long)."                            }, /* Access */
  { IMG_MISSING_LONGDESC_DLINK,                    "[1.1.2.1]: <img> missing 'longdesc' and d-link."                          }, /* Access */
  { IMG_MISSING_DLINK,                             "[1.1.2.2]: <img> missing d-link."                                         }, /* Access */
  { IMG_MISSING_LONGDESC,                          "[1.1.2.3]: <img> missing 'longdesc'."                                     }, /* Access */
  { IMG_BUTTON_MISSING_ALT,                        "[1.1.3.1]: <img> (button) missing 'alt' text."                            }, /* Access */
  { APPLET_MISSING_ALT,                            "[1.1.4.1]: <applet> missing alternate content."                           }, /* Access */
  { OBJECT_MISSING_ALT,                            "[1.1.5.1]: <object> missing alternate content."                           }, /* Access */
  { AUDIO_MISSING_TEXT_WAV,                        "[1.1.6.1]: audio missing text transcript (wav)."                          }, /* Access */
  { AUDIO_MISSING_TEXT_AU,                         "[1.1.6.2]: audio missing text transcript (au)."                           }, /* Access */
  { AUDIO_MISSING_TEXT_AIFF,                       "[1.1.6.3]: audio missing text transcript (aiff)."                         }, /* Access */
  { AUDIO_MISSING_TEXT_SND,                        "[1.1.6.4]: audio missing text transcript (snd)."                          }, /* Access */
  { AUDIO_MISSING_TEXT_RA,                         "[1.1.6.5]: audio missing text transcript (ra)."                           }, /* Access */
  { AUDIO_MISSING_TEXT_RM,                         "[1.1.6.6]: audio missing text transcript (rm)."                           }, /* Access */
  { FRAME_MISSING_LONGDESC,                        "[1.1.8.1]: <frame> may require 'longdesc'."                               }, /* Access */
  { AREA_MISSING_ALT,                              "[1.1.9.1]: <area> missing 'alt' text."                                    }, /* Access */
  { SCRIPT_MISSING_NOSCRIPT,                       "[1.1.10.1]: <script> missing <noscript> section."                         }, /* Access */
  { ASCII_REQUIRES_DESCRIPTION,                    "[1.1.12.1]: ascii art requires description."                              }, /* Access */
  { IMG_MAP_SERVER_REQUIRES_TEXT_LINKS,            "[1.2.1.1]: image map (server-side) requires text links."                  }, /* Access */
  { MULTIMEDIA_REQUIRES_TEXT,                      "[1.4.1.1]: multimedia requires synchronized text equivalents."            }, /* Access */
  { IMG_MAP_CLIENT_MISSING_TEXT_LINKS,             "[1.5.1.1]: image map (client-side) missing text links."                   }, /* Access */
  { INFORMATION_NOT_CONVEYED_IMAGE,                "[2.1.1.1]: ensure information not conveyed through color alone (image)."  }, /* Access */
  { INFORMATION_NOT_CONVEYED_APPLET,               "[2.1.1.2]: ensure information not conveyed through color alone (applet)." }, /* Access */
  { INFORMATION_NOT_CONVEYED_OBJECT,               "[2.1.1.3]: ensure information not conveyed through color alone (object)." }, /* Access */
  { INFORMATION_NOT_CONVEYED_SCRIPT,               "[2.1.1.4]: ensure information not conveyed through color alone (script)." }, /* Access */
  { INFORMATION_NOT_CONVEYED_INPUT,                "[2.1.1.5]: ensure information not conveyed through color alone (input)."  }, /* Access */
  { COLOR_CONTRAST_TEXT,                           "[2.2.1.1]: poor color contrast (text)."                                   }, /* Access */
  { COLOR_CONTRAST_LINK,                           "[2.2.1.2]: poor color contrast (link)."                                   }, /* Access */
  { COLOR_CONTRAST_ACTIVE_LINK,                    "[2.2.1.3]: poor color contrast (active link)."                            }, /* Access */
  { COLOR_CONTRAST_VISITED_LINK,                   "[2.2.1.4]: poor color contrast (visited link)."                           }, /* Access */
  { DOCTYPE_MISSING,                               "[3.2.1.1]: <doctype> missing."                                            }, /* Access */
  { STYLE_SHEET_CONTROL_PRESENTATION,              "[3.3.1.1]: use style sheets to control presentation."                     }, /* Access */
  { HEADERS_IMPROPERLY_NESTED,                     "[3.5.1.1]: headers improperly nested."                                    }, /* Access */
  { POTENTIAL_HEADER_BOLD,                         "[3.5.2.1]: potential header (bold)."                                      }, /* Access */
  { POTENTIAL_HEADER_ITALICS,                      "[3.5.2.2]: potential header (italics)."                                   }, /* Access */
  { POTENTIAL_HEADER_UNDERLINE,                    "[3.5.2.3]: potential header (underline)."                                 }, /* Access */
  { HEADER_USED_FORMAT_TEXT,                       "[3.5.3.1]: header used to format text."                                   }, /* Access */
  { LIST_USAGE_INVALID_UL,                         "[3.6.1.1]: list usage invalid <ul>."                                      }, /* Access */
  { LIST_USAGE_INVALID_OL,                         "[3.6.1.2]: list usage invalid <ol>."                                      }, /* Access */
  { LIST_USAGE_INVALID_LI,                         "[3.6.1.4]: list usage invalid <li>."                                      }, /* Access */
  { INDICATE_CHANGES_IN_LANGUAGE,                  "[4.1.1.1]: indicate changes in language."                                 }, /* Access */
  { LANGUAGE_NOT_IDENTIFIED,                       "[4.3.1.1]: language not identified."                                      }, /* Access */
  { LANGUAGE_INVALID,                              "[4.3.1.2]: language attribute invalid."                                   }, /* Access */
  { DATA_TABLE_MISSING_HEADERS,                    "[5.1.2.1]: data <table> missing row/column headers (all)."                }, /* Access */
  { DATA_TABLE_MISSING_HEADERS_COLUMN,             "[5.1.2.2]: data <table> missing row/column headers (1 col)."              }, /* Access */
  { DATA_TABLE_MISSING_HEADERS_ROW,                "[5.1.2.3]: data <table> missing row/column headers (1 row)."              }, /* Access */
  { DATA_TABLE_REQUIRE_MARKUP_COLUMN_HEADERS,      "[5.2.1.1]: data <table> may require markup (column headers)."             }, /* Access */
  { DATA_TABLE_REQUIRE_MARKUP_ROW_HEADERS,         "[5.2.1.2]: data <table> may require markup (row headers)."                }, /* Access */
  { LAYOUT_TABLES_LINEARIZE_PROPERLY,              "[5.3.1.1]: verify layout tables linearize properly."                      }, /* Access */
  { LAYOUT_TABLE_INVALID_MARKUP,                   "[5.4.1.1]: invalid markup used in layout <table>."                        }, /* Access */
  { TABLE_MISSING_SUMMARY,                         "[5.5.1.1]: <table> missing summary."                                      }, /* Access */
  { TABLE_SUMMARY_INVALID_NULL,                    "[5.5.1.2]: <table> summary invalid (null)."                               }, /* Access */
  { TABLE_SUMMARY_INVALID_SPACES,                  "[5.5.1.3]: <table> summary invalid (spaces)."                             }, /* Access */
  { TABLE_SUMMARY_INVALID_PLACEHOLDER,             "[5.5.1.6]: <table> summary invalid (placeholder text)."                   }, /* Access */
  { TABLE_MISSING_CAPTION,                         "[5.5.2.1]: <table> missing <caption>."                                    }, /* Access */
  { TABLE_MAY_REQUIRE_HEADER_ABBR,                 "[5.6.1.1]: <table> may require header abbreviations."                     }, /* Access */
  { TABLE_MAY_REQUIRE_HEADER_ABBR_NULL,            "[5.6.1.2]: <table> header abbreviations invalid (null)."                  }, /* Access */
  { TABLE_MAY_REQUIRE_HEADER_ABBR_SPACES,          "[5.6.1.3]: <table> header abbreviations invalid (spaces)."                }, /* Access */
  { STYLESHEETS_REQUIRE_TESTING_LINK,              "[6.1.1.1]: style sheets require testing (link)."                          }, /* Access */
  { STYLESHEETS_REQUIRE_TESTING_STYLE_ELEMENT,     "[6.1.1.2]: style sheets require testing (style element)."                 }, /* Access */
  { STYLESHEETS_REQUIRE_TESTING_STYLE_ATTR,        "[6.1.1.3]: style sheets require testing (style attribute)."               }, /* Access */
  { FRAME_SRC_INVALID,                             "[6.2.1.1]: <frame> source invalid."                                       }, /* Access */
  { TEXT_EQUIVALENTS_REQUIRE_UPDATING_APPLET,      "[6.2.2.1]: text equivalents require updating (applet)."                   }, /* Access */
  { TEXT_EQUIVALENTS_REQUIRE_UPDATING_SCRIPT,      "[6.2.2.2]: text equivalents require updating (script)."                   }, /* Access */
  { TEXT_EQUIVALENTS_REQUIRE_UPDATING_OBJECT,      "[6.2.2.3]: text equivalents require updating (object)."                   }, /* Access */
  { PROGRAMMATIC_OBJECTS_REQUIRE_TESTING_SCRIPT,   "[6.3.1.1]: programmatic objects require testing (script)."                }, /* Access */
  { PROGRAMMATIC_OBJECTS_REQUIRE_TESTING_OBJECT,   "[6.3.1.2]: programmatic objects require testing (object)."                }, /* Access */
  { PROGRAMMATIC_OBJECTS_REQUIRE_TESTING_EMBED,    "[6.3.1.3]: programmatic objects require testing (embed)."                 }, /* Access */
  { PROGRAMMATIC_OBJECTS_REQUIRE_TESTING_APPLET,   "[6.3.1.4]: programmatic objects require testing (applet)."                }, /* Access */
  { FRAME_MISSING_NOFRAMES,                        "[6.5.1.1]: <frameset> missing <noframes> section."                        }, /* Access */
  { NOFRAMES_INVALID_NO_VALUE,                     "[6.5.1.2]: <noframes> section invalid (no value)."                        }, /* Access */
  { NOFRAMES_INVALID_CONTENT,                      "[6.5.1.3]: <noframes> section invalid (content)."                         }, /* Access */
  { NOFRAMES_INVALID_LINK,                         "[6.5.1.4]: <noframes> section invalid (link)."                            }, /* Access */
  { REMOVE_FLICKER_SCRIPT,                         "[7.1.1.1]: remove flicker (script)."                                      }, /* Access */
  { REMOVE_FLICKER_OBJECT,                         "[7.1.1.2]: remove flicker (object)."                                      }, /* Access */
  { REMOVE_FLICKER_EMBED,                          "[7.1.1.3]: remove flicker (embed)."                                       }, /* Access */
  { REMOVE_FLICKER_APPLET,                         "[7.1.1.4]: remove flicker (applet)."                                      }, /* Access */
  { REMOVE_FLICKER_ANIMATED_GIF,                   "[7.1.1.5]: remove flicker (animated gif)."                                }, /* Access */
  { REMOVE_BLINK_MARQUEE,                          "[7.2.1.1]: remove blink/marquee."                                         }, /* Access */
  { REMOVE_AUTO_REFRESH,                           "[7.4.1.1]: remove auto-refresh."                                          }, /* Access */
  { REMOVE_AUTO_REDIRECT,                          "[7.5.1.1]: remove auto-redirect."                                         }, /* Access */
  { ENSURE_PROGRAMMATIC_OBJECTS_ACCESSIBLE_SCRIPT, "[8.1.1.1]: ensure programmatic objects are accessible (script)."          }, /* Access */
  { ENSURE_PROGRAMMATIC_OBJECTS_ACCESSIBLE_OBJECT, "[8.1.1.2]: ensure programmatic objects are accessible (object)."          }, /* Access */
  { ENSURE_PROGRAMMATIC_OBJECTS_ACCESSIBLE_APPLET, "[8.1.1.3]: ensure programmatic objects are accessible (applet)."          }, /* Access */
  { ENSURE_PROGRAMMATIC_OBJECTS_ACCESSIBLE_EMBED,  "[8.1.1.4]: ensure programmatic objects are accessible (embed)."           }, /* Access */
  { IMAGE_MAP_SERVER_SIDE_REQUIRES_CONVERSION,     "[9.1.1.1]: image map (server-side) requires conversion."                  }, /* Access */
  { SCRIPT_NOT_KEYBOARD_ACCESSIBLE_ON_MOUSE_DOWN,  "[9.3.1.1]: <script> not keyboard accessible (onMouseDown)."               }, /* Access */
  { SCRIPT_NOT_KEYBOARD_ACCESSIBLE_ON_MOUSE_UP,    "[9.3.1.2]: <script> not keyboard accessible (onMouseUp)."                 }, /* Access */
  { SCRIPT_NOT_KEYBOARD_ACCESSIBLE_ON_CLICK,       "[9.3.1.3]: <script> not keyboard accessible (onClick)."                   }, /* Access */
  { SCRIPT_NOT_KEYBOARD_ACCESSIBLE_ON_MOUSE_OVER,  "[9.3.1.4]: <script> not keyboard accessible (onMouseOver)."               }, /* Access */
  { SCRIPT_NOT_KEYBOARD_ACCESSIBLE_ON_MOUSE_OUT,   "[9.3.1.5]: <script> not keyboard accessible (onMouseOut)."                }, /* Access */
  { SCRIPT_NOT_KEYBOARD_ACCESSIBLE_ON_MOUSE_MOVE,  "[9.3.1.6]: <script> not keyboard accessible (onMouseMove)."               }, /* Access */
  { NEW_WINDOWS_REQUIRE_WARNING_NEW,               "[10.1.1.1]: new windows require warning (_new)."                          }, /* Access */
  { NEW_WINDOWS_REQUIRE_WARNING_BLANK,             "[10.1.1.2]: new windows require warning (_blank)."                        }, /* Access */
  { FORM_CONTROL_REQUIRES_DEFAULT_TEXT,            "[10.4.1.1]: form control requires default text."                          }, /* Access */
  { FORM_CONTROL_DEFAULT_TEXT_INVALID_NULL,        "[10.4.1.2]: form control default text invalid (null)."                    }, /* Access */
  { FORM_CONTROL_DEFAULT_TEXT_INVALID_SPACES,      "[10.4.1.3]: form control default text invalid (spaces)."                  }, /* Access */
  { REPLACE_DEPRECATED_HTML_APPLET,                "[11.2.1.1]: replace deprecated html <applet>."                            }, /* Access */
  { REPLACE_DEPRECATED_HTML_BASEFONT,              "[11.2.1.2]: replace deprecated html <basefont>."                          }, /* Access */
  { REPLACE_DEPRECATED_HTML_CENTER,                "[11.2.1.3]: replace deprecated html <center>."                            }, /* Access */
  { REPLACE_DEPRECATED_HTML_DIR,                   "[11.2.1.4]: replace deprecated html <dir>."                               }, /* Access */
  { REPLACE_DEPRECATED_HTML_FONT,                  "[11.2.1.5]: replace deprecated html <font>."                              }, /* Access */
  { REPLACE_DEPRECATED_HTML_ISINDEX,               "[11.2.1.6]: replace deprecated html <isindex>."                           }, /* Access */
  { REPLACE_DEPRECATED_HTML_MENU,                  "[11.2.1.7]: replace deprecated html <menu>."                              }, /* Access */
  { REPLACE_DEPRECATED_HTML_S,                     "[11.2.1.8]: replace deprecated html <s>."                                 }, /* Access */
  { REPLACE_DEPRECATED_HTML_STRIKE,                "[11.2.1.9]: replace deprecated html <strike>."                            }, /* Access */
  { REPLACE_DEPRECATED_HTML_U,                     "[11.2.1.10]: replace deprecated html <u>."                                }, /* Access */
  { FRAME_MISSING_TITLE,                           "[12.1.1.1]: <frame> missing title."                                       }, /* Access */
  { FRAME_TITLE_INVALID_NULL,                      "[12.1.1.2]: <frame> title invalid (null)."                                }, /* Access */
  { FRAME_TITLE_INVALID_SPACES,                    "[12.1.1.3]: <frame> title invalid (spaces)."                              }, /* Access */
  { ASSOCIATE_LABELS_EXPLICITLY,                   "[12.4.1.1]: associate labels explicitly with form controls."              }, /* Access */
  { ASSOCIATE_LABELS_EXPLICITLY_FOR,               "[12.4.1.2]: associate labels explicitly with form controls (for)."        }, /* Access */
  { ASSOCIATE_LABELS_EXPLICITLY_ID,                "[12.4.1.3]: associate labels explicitly with form controls (id)."         }, /* Access */
  { LINK_TEXT_NOT_MEANINGFUL,                      "[13.1.1.1]: link text not meaningful."                                    }, /* Access */
  { LINK_TEXT_MISSING,                             "[13.1.1.2]: link text missing."                                           }, /* Access */
  { LINK_TEXT_TOO_LONG,                            "[13.1.1.3]: link text too long."                                          }, /* Access */
  { LINK_TEXT_NOT_MEANINGFUL_CLICK_HERE,           "[13.1.1.4]: link text not meaningful (click here)."                       }, /* Access */
  { METADATA_MISSING,                              "[13.2.1.1]: Metadata missing."                                            }, /* Access */
  { METADATA_MISSING_REDIRECT_AUTOREFRESH,         "[13.2.1.3]: Metadata missing (redirect/auto-refresh)."                    }, /* Access */
  { SKIPOVER_ASCII_ART,                            "[13.10.1.1]: skip over ascii art."                                        }, /* Access */

#endif /* SUPPORT_ACCESSIBILITY_CHECKS */

  /* must be last */
  { 0,                                             NULL                                                                       }
};

static ctmbstr GetFormatFromCode(uint code)
{
    uint i;

    for (i = 0; msgFormat[i].fmt; ++i)
        if (msgFormat[i].code == code)
            return msgFormat[i].fmt;

    return NULL;
}

/*
  Documentation of configuration options
*/

/* Cross references */
static const TidyOptionId TidyXmlDeclLinks[] =
  { TidyCharEncoding, TidyOutCharEncoding, TidyUnknownOption };
static const TidyOptionId TidyJoinClassesLinks[] =
  { TidyJoinStyles, TidyDuplicateAttrs, TidyUnknownOption };
static const TidyOptionId TidyJoinStylesLinks[] =
  { TidyJoinClasses, TidyDuplicateAttrs, TidyUnknownOption };
static const TidyOptionId TidyDuplicateAttrsLinks[] =
  { TidyJoinClasses, TidyJoinStyles, TidyUnknownOption };
static const TidyOptionId TidyIndentContentLinks[] =
  { TidyIndentSpaces, TidyUnknownOption };
static const TidyOptionId TidyIndentSpacesLinks[] =
  { TidyIndentContent, TidyUnknownOption };
static const TidyOptionId TidyWrapAttValsLinks[] =
  { TidyWrapScriptlets, TidyUnknownOption };
static const TidyOptionId TidyWrapScriptletsLinks[] =
  { TidyWrapAttVals, TidyUnknownOption };
static const TidyOptionId TidyCharEncodingLinks[] =
  { TidyInCharEncoding, TidyOutCharEncoding, TidyUnknownOption };
static const TidyOptionId TidyInCharEncodingLinks[] =
  { TidyCharEncoding, TidyUnknownOption };
static const TidyOptionId TidyOutCharEncodingLinks[] =
  { TidyCharEncoding, TidyUnknownOption };
static const TidyOptionId TidyErrFileLinks[] =
  { TidyOutFile, TidyUnknownOption };
static const TidyOptionId TidyOutFileLinks[] =
  { TidyErrFile, TidyUnknownOption };
static const TidyOptionId TidyBlockTagsLinks[] =
  { TidyEmptyTags, TidyInlineTags, TidyPreTags, TidyUnknownOption };
static const TidyOptionId TidyEmptyTagsLinks[] =
  { TidyBlockTags, TidyInlineTags, TidyPreTags, TidyUnknownOption };
static const TidyOptionId TidyInlineTagsLinks[] =
  { TidyBlockTags, TidyEmptyTags, TidyPreTags, TidyUnknownOption };
static const TidyOptionId TidyPreTagsLinks[] =
  { TidyBlockTags, TidyEmptyTags, TidyInlineTags, TidyUnknownOption };
static const TidyOptionId TidyMergeDivsLinks[] =
  { TidyMakeClean, TidyMergeSpans, TidyUnknownOption };
static const TidyOptionId TidyMergeSpansLinks[] =
  { TidyMakeClean, TidyMergeDivs, TidyUnknownOption };
static const TidyOptionId TidyAsciiCharsLinks[] =
  { TidyMakeClean, TidyUnknownOption };
static const TidyOptionId TidyNumEntitiesLinks[] =
  { TidyDoctype, TidyPreserveEntities, TidyUnknownOption };
static const TidyOptionId TidyDropFontTagsLinks[] =
  { TidyMakeClean, TidyUnknownOption };
static const TidyOptionId TidyMakeCleanTagsLinks[] =
  { TidyDropFontTags, TidyUnknownOption };

/* Documentation of options */
static const TidyOptionDoc option_docs[] =
{
  {TidyXmlDecl,
   "This option specifies if Tidy should add the XML declaration when "
   "outputting XML or XHTML. Note that if the input already includes an "
   "&lt;?xml ... ?&gt; declaration then this option will be ignored. "
   "If the encoding for the output is different from \"ascii\", one of the "
   "utf encodings or \"raw\", the declaration is always added as required by "
   "the XML standard. "
   , TidyXmlDeclLinks
  },
  {TidyXmlSpace,
   "This option specifies if Tidy should add xml:space=\"preserve\" to "
   "elements such as &lt;PRE&gt;, &lt;STYLE&gt; and &lt;SCRIPT&gt; when "
   "generating XML. This is needed if the whitespace in such elements is to "
   "be parsed appropriately without having access to the DTD. "
  },
  {TidyAltText,
   "This option specifies the default \"alt=\" text Tidy uses for "
   "&lt;IMG&gt; attributes. This feature is dangerous as it suppresses "
   "further accessibility warnings. You are responsible for making your "
   "documents accessible to people who can not see the images! "
  },
  {TidyXmlPIs,
   "This option specifies if Tidy should change the parsing of processing "
   "instructions to require ?&gt; as the terminator rather than &gt;. This "
   "option is automatically set if the input is in XML. "
  },
  {TidyMakeBare,
   "This option specifies if Tidy should strip Microsoft specific HTML "
   "from Word 2000 documents, and output spaces rather than non-breaking "
   "spaces where they exist in the input. "
  },
  {TidyCSSPrefix,
   "This option specifies the prefix that Tidy uses for styles rules. By "
   "default, \"c\" will be used. "
  },
  {TidyMakeClean,
   "This option specifies if Tidy "
   "should strip out surplus presentational tags and attributes replacing "
   "them by style rules and structural markup as appropriate. It works well "
   "on the HTML saved by Microsoft Office products. "
   , TidyMakeCleanTagsLinks
  },
  {TidyDoctype,
   "This option specifies the DOCTYPE declaration generated by Tidy. If set "
   "to \"omit\" the output won't contain a DOCTYPE declaration. If set to "
   "\"auto\" (the default) Tidy will use an educated guess based upon the "
   "contents of the document. If set to \"strict\", Tidy will set the DOCTYPE "
   "to the strict DTD. If set to \"loose\", the DOCTYPE is set to the loose "
   "(transitional) DTD. Alternatively, you can supply a string for the formal "
   "public identifier (FPI).<br />"
   "<br />"
   "For example: <br />"
   "doctype: \"-//ACME//DTD HTML 3.14159//EN\"<br />"
   "<br />"
   "If you specify the FPI for an XHTML document, Tidy will set the "
   "system identifier to an empty string. For an HTML document, Tidy adds a "
   "system identifier only if one was already present in order to preserve "
   "the processing mode of some browsers. Tidy leaves the DOCTYPE for "
   "generic XML documents unchanged. <code>--doctype omit</code> implies "
   "<code>--numeric-entities yes</code>. This option does not offer a "
   "validation of the document conformance. "
  },
  {TidyDropEmptyParas,
   "This option specifies if Tidy should discard empty paragraphs. "
  },
  {TidyDropFontTags,
   "This option specifies if Tidy should discard &lt;FONT&gt; and "
   "&lt;CENTER&gt; tags without creating the corresponding style rules. This "
   "option can be set independently of the clean option. "
   , TidyDropFontTagsLinks
  },
  {TidyDropPropAttrs,
   "This option specifies if Tidy should strip out proprietary attributes, "
   "such as MS data binding attributes. "
  },
  {TidyEncloseBlockText,
   "This option specifies if Tidy should insert a &lt;P&gt; element to "
   "enclose any text it finds in any element that allows mixed content for "
   "HTML transitional but not HTML strict. "
  },
  {TidyEncloseBodyText,
   "This option specifies if Tidy should enclose any text it finds in the "
   "body element within a &lt;P&gt; element. This is useful when you want to "
   "take existing HTML and use it with a style sheet. "
  },
  {TidyEscapeCdata,
   "This option specifies if Tidy should convert &lt;![CDATA[]]&gt; "
   "sections to normal text. "
  },
  {TidyFixComments,
   "This option specifies if Tidy should replace unexpected hyphens with "
   "\"=\" characters when it comes across adjacent hyphens. The default is "
   "yes. This option is provided for users of Cold Fusion which uses the "
   "comment syntax: &lt;!--- ---&gt; "
  },
  {TidyFixUri,
   "This option specifies if Tidy should check attribute values that carry "
   "URIs for illegal characters and if such are found, escape them as HTML 4 "
   "recommends. "
  },
  {TidyHideComments,
   "This option specifies if Tidy should print out comments. "
  },
  {TidyHideEndTags,
   "This option specifies if Tidy should omit optional end-tags when "
   "generating the pretty printed markup. This option is ignored if you are "
   "outputting to XML. "
  },
  {TidyIndentCdata,
   "This option specifies if Tidy should indent &lt;![CDATA[]]&gt; sections. "
  },
  {TidyXmlTags,
   "This option specifies if Tidy should use the XML parser rather than the "
   "error correcting HTML parser. "
  },
  {TidyJoinClasses,
   "This option specifies if Tidy should combine class names to generate "
   "a single new class name, if multiple class assignments are detected on "
   "an element. "
   , TidyJoinClassesLinks
  },
  {TidyJoinStyles,
   "This option specifies if Tidy should combine styles to generate a single "
   "new style, if multiple style values are detected on an element. "
   , TidyJoinStylesLinks
  },
  {TidyLogicalEmphasis,
   "This option specifies if Tidy should replace any occurrence of &lt;I&gt; "
   "by &lt;EM&gt; and any occurrence of &lt;B&gt; by &lt;STRONG&gt;. In both "
   "cases, the attributes are preserved unchanged. This option can be set "
   "independently of the clean and drop-font-tags options. "
  },
  {TidyLowerLiterals,
   "This option specifies if Tidy should convert the value of an attribute "
   "that takes a list of predefined values to lower case. This is required "
   "for XHTML documents. "
  },
  {TidyMergeDivs,
   "Can be used to modify behavior of -c (--clean yes) option. "
   "This option specifies if Tidy should merge nested &lt;div&gt; such as "
   "\"&lt;div&gt;&lt;div&gt;...&lt;/div&gt;&lt;/div&gt;\". If set to "
   "\"auto\", the attributes of the inner &lt;div&gt; are moved to the "
   "outer one. As well, nested &lt;div&gt; with ID attributes are not "
   "merged. If set to \"yes\", the attributes of the inner &lt;div&gt; "
   "are discarded with the exception of \"class\" and \"style\". "
   ,TidyMergeDivsLinks
  },
  {TidyMergeSpans,
   "Can be used to modify behavior of -c (--clean yes) option. "
   "This option specifies if Tidy should merge nested &lt;span&gt; such as "
   "\"&lt;span&gt;&lt;span&gt;...&lt;/span&gt;&lt;/span&gt;\". The algorithm "
   "is identical to the one used by --merge-divs. "
   ,TidyMergeSpansLinks
  },
#if SUPPORT_ASIAN_ENCODINGS
  {TidyNCR,
   "This option specifies if Tidy should allow numeric character references. "
  },
#endif
  {TidyBlockTags,
   "This option specifies new block-level tags. This option takes a space or "
   "comma separated list of tag names. Unless you declare new tags, Tidy will "
   "refuse to generate a tidied file if the input includes previously unknown "
   "tags. Note you can't change the content model for elements such as "
   "&lt;TABLE&gt;, &lt;UL&gt;, &lt;OL&gt; and &lt;DL&gt;. This option is "
   "ignored in XML mode. "
   ,TidyBlockTagsLinks
  },
  {TidyEmptyTags,
   "This option specifies new empty inline tags. This option takes a space "
   "or comma separated list of tag names. Unless you declare new tags, Tidy "
   "will refuse to generate a tidied file if the input includes previously "
   "unknown tags. Remember to also declare empty tags as either inline or "
   "blocklevel. This option is ignored in XML mode. "
   ,TidyEmptyTagsLinks
  },
  {TidyInlineTags,
   "This option specifies new non-empty inline tags. This option takes a "
   "space or comma separated list of tag names. Unless you declare new tags, "
   "Tidy will refuse to generate a tidied file if the input includes "
   "previously unknown tags. This option is ignored in XML mode. "
   ,TidyInlineTagsLinks
  },
  { TidyPreTags,
    "This option specifies "
    "new tags that are to be processed in exactly the same way as HTML's "
    "&lt;PRE&gt; element. This option takes a space or comma separated list "
    "of tag names. Unless you declare new tags, Tidy will refuse to generate "
    "a tidied file if the input includes previously unknown tags. Note you "
    "can not as yet add new CDATA elements (similar to &lt;SCRIPT&gt;). "
    "This option is ignored in XML mode. "
    ,TidyPreTagsLinks
  },
  {TidyNumEntities,
   "This option specifies if Tidy should output entities other than the "
   "built-in HTML entities (&amp;amp;, &amp;lt;, &amp;gt; and &amp;quot;) in "
   "the numeric rather than the named entity form. Only entities compatible "
   "with the DOCTYPE declaration generated are used. Entities that can be "
   "represented in the output encoding are translated correspondingly. "
    ,TidyNumEntitiesLinks
  },
  {TidyHtmlOut,
   "This option specifies if Tidy should generate pretty printed output, "
   "writing it as HTML. "
  },
  {TidyXhtmlOut,
   "This option specifies if Tidy should generate pretty printed output, "
   "writing it as extensible HTML. "
   "This option causes Tidy to set the DOCTYPE and default namespace as "
   "appropriate to XHTML. If a DOCTYPE or namespace is given they will "
   "checked for consistency with the content of the document. In the case of "
   "an inconsistency, the corrected values will appear in the output. For "
   "XHTML, entities can be written as named or numeric entities according to "
   "the setting of the \"numeric-entities\" option. The original case of tags "
   "and attributes will be preserved, regardless of other options. "
  },
  {TidyXmlOut,
   "This option specifies if Tidy should pretty print output, writing it as "
   "well-formed XML. Any entities not defined in XML 1.0 will be written as "
   "numeric entities to allow them to be parsed by a XML parser. The original "
   "case of tags and attributes will be preserved, regardless of other "
   "options. "
  },
  {TidyQuoteAmpersand,
   "This option specifies if Tidy should output unadorned &amp; characters as "
   "&amp;amp;. "
  },
  {TidyQuoteMarks,
   "This option specifies if Tidy should output &quot; characters as "
   "&amp;quot; as is preferred by some editing environments. The apostrophe "
   "character ' is written out as &amp;#39; since many web browsers don't yet "
   "support &amp;apos;. "
  },
  {TidyQuoteNbsp,
   "This option specifies if Tidy should output non-breaking space characters "
   "as entities, rather than as the Unicode character value 160 (decimal). "
  },
  {TidyDuplicateAttrs,
   "This option specifies if Tidy should keep the first or last attribute, if "
   "an attribute is repeated, e.g. has two align attributes. "
   , TidyDuplicateAttrsLinks
  },
  {TidySortAttributes,
   "This option specifies that tidy should sort attributes within an element "
   "using the specified sort algorithm. If set to \"alpha\", the algorithm is "
   "an ascending alphabetic sort. "
  },
  {TidyReplaceColor,
   "This option specifies if Tidy should replace numeric values in color "
   "attributes by HTML/XHTML color names where defined, e.g. replace "
   "\"#ffffff\" with \"white\". "
  },
  {TidyBodyOnly,
   "This option specifies if Tidy should print only the contents of the "
   "body tag as an HTML fragment. If set to \"auto\", this is performed only "
   "if the body tag has been inferred. Useful for incorporating "
   "existing whole pages as a portion of another page. "
   "This option has no effect if XML output is requested. "
  },
  {TidyUpperCaseAttrs,
   "This option specifies if Tidy should output attribute names in upper "
   "case. The default is no, which results in lower case attribute names, "
   "except for XML input, where the original case is preserved. "
  },
  {TidyUpperCaseTags,
   "This option specifies if Tidy should output tag names in upper case. "
   "The default is no, which results in lower case tag names, except for XML "
   "input, where the original case is preserved. "
  },
  {TidyWord2000,
   "This option specifies if Tidy should go to great pains to strip out all "
   "the surplus stuff Microsoft Word 2000 inserts when you save Word "
   "documents as \"Web pages\". Doesn't handle embedded images or VML. "
   "You should consider using Word's \"Save As: Web Page, Filtered\". "
  },
  {TidyAccessibilityCheckLevel,
   "This option specifies what level of accessibility checking, if any, "
   "that Tidy should do. Level 0 is equivalent to Tidy Classic's "
   "accessibility checking. "
   "For more information on Tidy's accessibility checking, visit the "
   "<a href=\"http://www.aprompt.ca/Tidy/accessibilitychecks.html\" "
   ">Adaptive Technology Resource Centre at the University of Toronto</a>. "
  },
  {TidyShowErrors,
   "This option specifies the number Tidy uses to determine if further errors "
   "should be shown. If set to 0, then no errors are shown. "
  },
  {TidyShowWarnings,
   "This option specifies if Tidy should suppress warnings. This can be "
   "useful when a few errors are hidden in a flurry of warnings. "
  },
  {TidyBreakBeforeBR,
   "This option specifies if Tidy should output a line break before each "
   "&lt;BR&gt; element. "
  },
  {TidyIndentContent,
   "This option specifies if Tidy should indent block-level tags. If set to "
   "\"auto\", this option causes Tidy to decide whether or not to indent the "
   "content of tags such as TITLE, H1-H6, LI, TD, TD, or P depending on "
   "whether or not the content includes a block-level element. You are "
   "advised to avoid setting indent to yes as this can expose layout bugs in "
   "some browsers. "
   ,TidyIndentContentLinks
  },
  {TidyIndentAttributes,
   "This option specifies if Tidy should begin each attribute on a new line. "
  },
  {TidyIndentSpaces,
   "This option specifies the number of spaces Tidy uses to indent content, "
   "when indentation is enabled. "
   ,TidyIndentSpacesLinks
  },
  {TidyLiteralAttribs,
   "This option specifies if Tidy should ensure that whitespace characters "
   "within attribute values are passed through unchanged. "
  },
  {TidyShowMarkup,
   "This option specifies if Tidy should generate a pretty printed version "
   "of the markup. Note that Tidy won't generate a pretty printed version if "
   "it finds significant errors (see force-output). "
  },
#if SUPPORT_ASIAN_ENCODINGS
  {TidyPunctWrap,
   "This option specifies if Tidy should line wrap after some Unicode or "
   "Chinese punctuation characters. "
  },
#endif
  {TidyBurstSlides,
   "Currently not used. Tidy Classic only. "
  },
  {TidyTabSize,
   "This option specifies the number of columns that Tidy uses between "
   "successive tab stops. It is used to map tabs to spaces when reading the "
   "input. Tidy never outputs tabs. "
  },
  {TidyVertSpace,
   "This option specifies if Tidy should add some empty lines for "
   "readability. "
  },
  {TidyWrapLen,
   "This option specifies the right margin Tidy uses for line wrapping. Tidy "
   "tries to wrap lines so that they do not exceed this length. Set wrap to "
   "zero if you want to disable line wrapping. "
  },
  {TidyWrapAsp,
   "This option specifies if Tidy should line wrap text contained within ASP "
   "pseudo elements, which look like: &lt;% ... %&gt;. "
  },
  {TidyWrapAttVals,
   "This option specifies if Tidy should line wrap attribute values, for "
   "easier editing. This option can be set independently of "
   "wrap-script-literals. "
   ,TidyWrapAttValsLinks
  },
  {TidyWrapJste,
   "This option specifies if Tidy should line wrap text contained within "
   "JSTE pseudo elements, which look like: &lt;# ... #&gt;. "
  },
  {TidyWrapPhp,
   "This option specifies if Tidy should line wrap text contained within PHP "
   "pseudo elements, which look like: &lt;?php ... ?&gt;. "
  },
  {TidyWrapScriptlets,
   "This option specifies if Tidy should line wrap string literals that "
   "appear in script attributes. Tidy wraps long script string literals by "
   "inserting a backslash character before the line break. "
   ,TidyWrapScriptletsLinks
  },
  {TidyWrapSection,
   "This option specifies if Tidy should line wrap text contained within "
   "&lt;![ ... ]&gt; section tags. "
  },
  {TidyAsciiChars,
   "Can be used to modify behavior of -c (--clean yes) option.  If set "
   "to \"yes\" when using -c, &amp;emdash;, &amp;rdquo;, and other named "
   "character entities are downgraded to their closest ascii equivalents. "
   ,TidyAsciiCharsLinks
  },
  {TidyCharEncoding,
   "This option specifies the character encoding Tidy uses for both the input "
   "and output. For ascii, Tidy will accept Latin-1 (ISO-8859-1) character "
   "values, but will use entities for all characters whose value &gt; 127. "
   "For raw, Tidy will output values above 127 without translating them into "
   "entities. For latin1, characters above 255 will be written as entities. "
   "For utf8, Tidy assumes that both input and output is encoded as UTF-8. "
   "You can use iso2022 for files encoded using the ISO-2022 family of "
   "encodings e.g. ISO-2022-JP. For mac and win1252, Tidy will accept vendor "
   "specific character values, but will use entities for all characters whose "
   "value &gt; 127. "
   "For unsupported encodings, use an external utility to convert to and from "
   "UTF-8. "
   ,TidyCharEncodingLinks
  },
  {TidyInCharEncoding,
   "This option specifies the character encoding Tidy uses for the input. See "
   "char-encoding for more info. "
   ,TidyInCharEncodingLinks
  },
#if SUPPORT_ASIAN_ENCODINGS
  {TidyLanguage,
   "Currently not used, but this option specifies the language Tidy uses "
   "(for instance \"en\"). "
  },
#endif
#if SUPPORT_UTF16_ENCODINGS
  {TidyOutputBOM,
   "This option specifies if Tidy should write a Unicode Byte Order Mark "
   "character (BOM; also known as Zero Width No-Break Space; has value of "
   "U+FEFF) to the beginning of the output; only for UTF-8 and UTF-16 output "
   "encodings. If set to \"auto\", this option causes Tidy to write a BOM to "
   "the output only if a BOM was present at the beginning of the input. A BOM "
   "is always written for XML/XHTML output using UTF-16 output encodings. "
  },
#endif
  {TidyOutCharEncoding,
   "This option specifies the character encoding Tidy uses for the output. "
   "See char-encoding for more info. May only be different from "
   "input-encoding for Latin encodings (ascii, latin0, latin1, mac, win1252, "
   "ibm858). "
   ,TidyOutCharEncodingLinks
  },
  {TidyNewline,
   "The default is appropriate to the current platform: CRLF on PC-DOS, "
   "MS-Windows and OS/2, CR on Classic Mac OS, and LF everywhere else "
   "(Unix and Linux). "
  },
  {TidyErrFile,
   "This option specifies the error file Tidy uses for errors and warnings. "
   "Normally errors and warnings are output to \"stderr\". "
   ,TidyErrFileLinks
  },
  {TidyFixBackslash,
   "This option specifies if Tidy should replace backslash characters "
   "\"<code>\\</code>\" in URLs by forward slashes \"<code>/</code>\". "
  },
  {TidyForceOutput,
   "This option specifies if Tidy should produce output even if errors are "
   "encountered. Use this option with care - if Tidy reports an error, this "
   "means Tidy was not able to, or is not sure how to, fix the error, so the "
   "resulting output may not reflect your intention. "
  },
  {TidyEmacs,
   "This option specifies if Tidy should change the format for reporting "
   "errors and warnings to a format that is more easily parsed by GNU Emacs. "
  },
  {TidyEmacsFile,
   "Used internally. "
  },
  {TidyKeepFileTimes,
   "This option specifies if Tidy should keep the original modification time "
   "of files that Tidy modifies in place. The default is no. Setting the "
   "option to yes allows you to tidy files without causing these files to be "
   "uploaded to a web server when using a tool such as SiteCopy. Note this "
   "feature is not supported on some platforms. "
  },
  {TidyOutFile,
   "This option specifies the output file Tidy uses for markup. Normally "
   "markup is written to \"stdout\". "
   ,TidyOutFileLinks
  },
  {TidyQuiet,
   "This option specifies if Tidy should output the summary of the numbers "
   "of errors and warnings, or the welcome or informational messages. "
  },
  {TidySlideStyle,
   "Currently not used.  Tidy Classic only. "
  },
  {TidyMark,
   "This option specifies if Tidy should add a meta element to the document "
   "head to indicate that the document has been tidied. Tidy won't add a meta "
   "element if one is already present. "
  },
  {TidyWriteBack,
   "This option specifies if Tidy should write back the tidied markup to the "
   "same file it read from. You are advised to keep copies of important files "
   "before tidying them, as on rare occasions the result may not be what you "
   "expect. "
  },
  {TidyDecorateInferredUL,
   "This option specifies if Tidy should decorate inferred UL elements with "
   "some CSS markup to avoid indentation to the right. "
  },
  {TidyPreserveEntities,
   "This option specifies if Tidy should preserve the well-formed entitites "
   "as found in the input. "
  },
  {N_TIDY_OPTIONS,
   NULL
  }
};

const TidyOptionDoc* TY_(OptGetDocDesc)( TidyOptionId optId )
{
    uint i = 0;

    while( option_docs[i].opt != N_TIDY_OPTIONS )
    {
        if ( option_docs[i].opt == optId )
            return &option_docs[i];
        ++i;
    }
    return NULL;
}


static char* LevelPrefix( TidyReportLevel level, char* buf, size_t count )
{
  *buf = 0;
  switch ( level )
  {
  case TidyInfo:
    TY_(tmbstrncpy)( buf, "Info: ", count );
    break;
  case TidyWarning:
    TY_(tmbstrncpy)( buf, "Warning: ", count );
    break;
  case TidyConfig:
    TY_(tmbstrncpy)( buf, "Config: ", count );
    break;
  case TidyAccess:
    TY_(tmbstrncpy)( buf, "Access: ", count );
    break;
  case TidyError:
    TY_(tmbstrncpy)( buf, "Error: ", count );
    break;
  case TidyBadDocument:
    TY_(tmbstrncpy)( buf, "Document: ", count );
    break;
  case TidyFatal:
    TY_(tmbstrncpy)( buf, "panic: ", count );
    break;
  }
  return buf + TY_(tmbstrlen)( buf );
}

/* Updates document message counts and
** compares counts to options to see if message
** display should go forward.
*/
static Bool UpdateCount( TidyDocImpl* doc, TidyReportLevel level )
{
  /* keep quiet after <ShowErrors> errors */
  Bool go = ( doc->errors < cfg(doc, TidyShowErrors) );

  switch ( level )
  {
  case TidyInfo:
    doc->infoMessages++;
    break;
  case TidyWarning:
    doc->warnings++;
    go = go && cfgBool( doc, TidyShowWarnings );
    break;
  case TidyConfig:
    doc->optionErrors++;
    break;
  case TidyAccess:
    doc->accessErrors++;
    break;
  case TidyError:
    doc->errors++;
    break;
  case TidyBadDocument:
    doc->docErrors++;
    break;
  case TidyFatal:
    /* Ack! */;
    break;
  }

  return go;
}

static char* ReportPosition(TidyDocImpl* doc, int line, int col, char* buf, size_t count)
{
    *buf = 0;

    /* Change formatting to be parsable by GNU Emacs */
    if ( cfgBool(doc, TidyEmacs) && cfgStr(doc, TidyEmacsFile) )
        TY_(tmbsnprintf)(buf, count, "%s:%d:%d: ", 
                         cfgStr(doc, TidyEmacsFile), line, col);
    else /* traditional format */
        TY_(tmbsnprintf)(buf, count, "line %d column %d - ", line, col);
    return buf + TY_(tmbstrlen)( buf );
}

/* General message writing routine.
** Each message is a single warning, error, etc.
** 
** This routine will keep track of counts and,
** if the caller has set a filter, it will be 
** called.  The new preferred way of handling
** Tidy diagnostics output is either a) define
** a new output sink or b) install a message
** filter routine.
*/

static void messagePos( TidyDocImpl* doc, TidyReportLevel level,
                        int line, int col, ctmbstr msg, va_list args )
#ifdef __GNUC__
__attribute__((format(printf, 5, 0)))
#endif
;
static void messagePos( TidyDocImpl* doc, TidyReportLevel level,
                        int line, int col, ctmbstr msg, va_list args )
{
    enum { sizeMessageBuf=2048 };
    char *messageBuf = TidyDocAlloc(doc,sizeMessageBuf);
    Bool go = UpdateCount( doc, level );

    if ( go )
    {
        TY_(tmbvsnprintf)(messageBuf, sizeMessageBuf, msg, args);
        if ( doc->mssgFilt )
        {
            TidyDoc tdoc = tidyImplToDoc( doc );
            go = doc->mssgFilt( tdoc, level, line, col, messageBuf );
        }
    }

    if ( go )
    {
        enum { sizeBuf=1024 };
        char *buf = TidyDocAlloc(doc,sizeBuf);
        const char *cp;
        if ( line > 0 && col > 0 )
        {
            ReportPosition(doc, line, col, buf, sizeBuf);
            for ( cp = buf; *cp; ++cp )
                TY_(WriteChar)( *cp, doc->errout );
        }

        LevelPrefix( level, buf, sizeBuf );
        for ( cp = buf; *cp; ++cp )
            TY_(WriteChar)( *cp, doc->errout );

        for ( cp = messageBuf; *cp; ++cp )
            TY_(WriteChar)( *cp, doc->errout );
        TY_(WriteChar)( '\n', doc->errout );
        TidyDocFree(doc, buf);
    }
    TidyDocFree(doc, messageBuf);
}

/* Reports error at current Lexer line/column. */ 
static
void message( TidyDocImpl* doc, TidyReportLevel level, ctmbstr msg, ... )
#ifdef __GNUC__
__attribute__((format(printf, 3, 4)))
#endif
;

/* Reports error at node line/column. */ 
static
void messageNode( TidyDocImpl* doc, TidyReportLevel level,
                  Node* node, ctmbstr msg, ... )
#ifdef __GNUC__
__attribute__((format(printf, 4, 5)))
#endif
;

/* Reports error at given line/column. */ 
static
void messageLexer( TidyDocImpl* doc, TidyReportLevel level, 
                   ctmbstr msg, ... )
#ifdef __GNUC__
__attribute__((format(printf, 3, 4)))
#endif
;

/* For general reporting.  Emits nothing if --quiet yes */
static
void tidy_out( TidyDocImpl* doc, ctmbstr msg, ... )
#ifdef __GNUC__
__attribute__((format(printf, 2, 3)))
#endif
;


void message( TidyDocImpl* doc, TidyReportLevel level, ctmbstr msg, ... )
{
    va_list args;
    va_start( args, msg );
    messagePos( doc, level, 0, 0, msg, args );
    va_end( args );
}


void messageLexer( TidyDocImpl* doc, TidyReportLevel level, ctmbstr msg, ... )
{
    int line = ( doc->lexer ? doc->lexer->lines : 0 );
    int col  = ( doc->lexer ? doc->lexer->columns : 0 );

    va_list args;
    va_start( args, msg );
    messagePos( doc, level, line, col, msg, args );
    va_end( args );
}

void messageNode( TidyDocImpl* doc, TidyReportLevel level, Node* node,
                  ctmbstr msg, ... )
{
    int line = ( node ? node->line :
                 ( doc->lexer ? doc->lexer->lines : 0 ) );
    int col  = ( node ? node->column :
                 ( doc->lexer ? doc->lexer->columns : 0 ) );

    va_list args;
    va_start( args, msg );
    messagePos( doc, level, line, col, msg, args );
    va_end( args );
}

void tidy_out( TidyDocImpl* doc, ctmbstr msg, ... )
{
    if ( !cfgBool(doc, TidyQuiet) )
    {
        ctmbstr cp;
        enum { sizeBuf=2048 };
        char *buf = TidyDocAlloc(doc,sizeBuf);

        va_list args;
        va_start( args, msg );
        TY_(tmbvsnprintf)(buf, sizeBuf, msg, args);
        va_end( args );

        for ( cp=buf; *cp; ++cp )
          TY_(WriteChar)( *cp, doc->errout );
        TidyDocFree(doc, buf);
    }
}

#if 0
void ShowVersion( TidyDocImpl* doc )
{
    ctmbstr platform = "", helper = "";

#ifdef PLATFORM_NAME
    platform = PLATFORM_NAME;
    helper = " for ";
#endif

    tidy_out( doc, "\nHTML Tidy%s%s (release date: %s; built on %s, at %s)\n"
                   "See http://tidy.sourceforge.net/ for details.\n",
              helper, platform, TY_(release_date), __DATE__, __TIME__ );
}
#endif

void TY_(FileError)( TidyDocImpl* doc, ctmbstr file, TidyReportLevel level )
{
    message( doc, level, "Can't open \"%s\"\n", file );
}

static char* TagToString(Node* tag, char* buf, size_t count)
{
    *buf = 0;
    if (tag)
    {
        if (TY_(nodeIsElement)(tag))
            TY_(tmbsnprintf)(buf, count, "<%s>", tag->element);
        else if (tag->type == EndTag)
            TY_(tmbsnprintf)(buf, count, "</%s>", tag->element);
        else if (tag->type == DocTypeTag)
            TY_(tmbsnprintf)(buf, count, "<!DOCTYPE>");
        else if (tag->type == TextNode)
            TY_(tmbsnprintf)(buf, count, "plain text");
        else if (tag->type == XmlDecl)
            TY_(tmbsnprintf)(buf, count, "XML declaration");
        else if (tag->element)
            TY_(tmbsnprintf)(buf, count, "%s", tag->element);
    }
    return buf + TY_(tmbstrlen)(buf);
}

/* lexer is not defined when this is called */
void TY_(ReportUnknownOption)( TidyDocImpl* doc, ctmbstr option )
{
    assert( option != NULL );
    message( doc, TidyConfig, "unknown option: %s", option );
}

/* lexer is not defined when this is called */
void TY_(ReportBadArgument)( TidyDocImpl* doc, ctmbstr option )
{
    assert( option != NULL );
    message( doc, TidyConfig,
             "missing or malformed argument for option: %s", option );
}

static void NtoS(int n, tmbstr str)
{
    tmbchar buf[40];
    int i;

    for (i = 0;; ++i)
    {
        buf[i] = (tmbchar)( (n % 10) + '0' );

        n = n / 10;

        if (n == 0)
            break;
    }

    n = i;

    while (i >= 0)
    {
        str[n-i] = buf[i];
        --i;
    }

    str[n+1] = '\0';
}

void TY_(ReportEncodingWarning)(TidyDocImpl* doc, uint code, uint encoding)
{
    switch(code)
    {
    case ENCODING_MISMATCH:
        messageLexer(doc, TidyWarning, GetFormatFromCode(code), 
                     TY_(CharEncodingName)(doc->docIn->encoding),
                     TY_(CharEncodingName)(encoding));
        doc->badChars |= BC_ENCODING_MISMATCH;
        break;
    }
}

void TY_(ReportEncodingError)(TidyDocImpl* doc, uint code, uint c, Bool discarded)
{
    char buf[ 32 ] = {'\0'};

    ctmbstr action = discarded ? "discarding" : "replacing";
    ctmbstr fmt = GetFormatFromCode(code);

    /* An encoding mismatch is currently treated as a non-fatal error */
    switch (code)
    {
    case VENDOR_SPECIFIC_CHARS:
        NtoS(c, buf);
        doc->badChars |= BC_VENDOR_SPECIFIC_CHARS;
        break;

    case INVALID_SGML_CHARS:
        NtoS(c, buf);
        doc->badChars |= BC_INVALID_SGML_CHARS;
        break;

    case INVALID_UTF8:
        TY_(tmbsnprintf)(buf, sizeof(buf), "U+%04X", c);
        doc->badChars |= BC_INVALID_UTF8;
        break;

#if SUPPORT_UTF16_ENCODINGS
    case INVALID_UTF16:
        TY_(tmbsnprintf)(buf, sizeof(buf), "U+%04X", c);
        doc->badChars |= BC_INVALID_UTF16;
        break;
#endif

    case INVALID_NCR:
        NtoS(c, buf);
        doc->badChars |= BC_INVALID_NCR;
        break;
    }

    if (fmt)
        messageLexer( doc, TidyWarning, fmt, action, buf );
}

void TY_(ReportEntityError)( TidyDocImpl* doc, uint code, ctmbstr entity,
                             int ARG_UNUSED(c) )
{
    ctmbstr entityname = ( entity ? entity : "NULL" );
    ctmbstr fmt = GetFormatFromCode(code);

    if (fmt)
        messageLexer( doc, TidyWarning, fmt, entityname );
}

void TY_(ReportAttrError)(TidyDocImpl* doc, Node *node, AttVal *av, uint code)
{
    char const *name = "NULL", *value = "NULL";
    char tagdesc[64];
    ctmbstr fmt = GetFormatFromCode(code);

    assert( fmt != NULL );

    TagToString(node, tagdesc, sizeof(tagdesc));

    if (av)
    {
        if (av->attribute)
            name = av->attribute;
        if (av->value)
            value = av->value;
    }

    switch (code)
    {
    case UNKNOWN_ATTRIBUTE:
    case INSERTING_ATTRIBUTE:
    case MISSING_ATTR_VALUE:
    case XML_ATTRIBUTE_VALUE:
    case PROPRIETARY_ATTRIBUTE:
    case JOINING_ATTRIBUTE:
        messageNode(doc, TidyWarning, node, fmt, tagdesc, name);
        break;

    case BAD_ATTRIBUTE_VALUE:
    case BAD_ATTRIBUTE_VALUE_REPLACED:
    case INVALID_ATTRIBUTE:
        messageNode(doc, TidyWarning, node, fmt, tagdesc, name, value);
        break;

    case UNEXPECTED_QUOTEMARK:
    case MISSING_QUOTEMARK:
    case ID_NAME_MISMATCH:
    case BACKSLASH_IN_URI:
    case FIXED_BACKSLASH:
    case ILLEGAL_URI_REFERENCE:
    case ESCAPED_ILLEGAL_URI:
    case NEWLINE_IN_URI:
    case WHITE_IN_URI:
    case UNEXPECTED_GT:
    case INVALID_XML_ID:
    case UNEXPECTED_EQUALSIGN:
        messageNode(doc, TidyWarning, node, fmt, tagdesc);
        break;

    case XML_ID_SYNTAX:
    case PROPRIETARY_ATTR_VALUE:
    case ANCHOR_NOT_UNIQUE:
    case ATTR_VALUE_NOT_LCASE:
        messageNode(doc, TidyWarning, node, fmt, tagdesc, value);
        break;


    case MISSING_IMAGEMAP:
        messageNode(doc, TidyWarning, node, fmt, tagdesc);
        doc->badAccess |= BA_MISSING_IMAGE_MAP;
        break;

    case REPEATED_ATTRIBUTE:
        messageNode(doc, TidyWarning, node, fmt, tagdesc, value, name);
        break;

    case UNEXPECTED_END_OF_FILE_ATTR:
        /* on end of file adjust reported position to end of input */
        doc->lexer->lines   = doc->docIn->curline;
        doc->lexer->columns = doc->docIn->curcol;
        messageLexer(doc, TidyWarning, fmt, tagdesc);
        break;
    }
}

void TY_(ReportMissingAttr)( TidyDocImpl* doc, Node* node, ctmbstr name )
{
    char tagdesc[ 64 ];
    ctmbstr fmt = GetFormatFromCode(MISSING_ATTRIBUTE);

    assert( fmt != NULL );
    TagToString(node, tagdesc, sizeof(tagdesc));
    messageNode( doc, TidyWarning, node, fmt, tagdesc, name );
}

#if SUPPORT_ACCESSIBILITY_CHECKS

/*********************************************************
* Accessibility
*
* DisplayHTMLTableAlgorithm()
*
* If the table does contain 2 or more logical levels of 
* row or column headers, the HTML 4 table algorithm 
* to show the author how the headers are currently associated 
* with the cells.
*********************************************************/
 
void TY_(DisplayHTMLTableAlgorithm)( TidyDocImpl* doc )
{
    tidy_out(doc, " \n");
    tidy_out(doc, "      - First, search left from the cell's position to find row header cells.\n");
    tidy_out(doc, "      - Then search upwards to find column header cells.\n");
    tidy_out(doc, "      - The search in a given direction stops when the edge of the table is\n");
    tidy_out(doc, "        reached or when a data cell is found after a header cell.\n"); 
    tidy_out(doc, "      - Row headers are inserted into the list in the order they appear in\n");
    tidy_out(doc, "        the table. \n");
    tidy_out(doc, "      - For left-to-right tables, headers are inserted from left to right.\n");
    tidy_out(doc, "      - Column headers are inserted after row headers, in \n");
    tidy_out(doc, "        the order they appear in the table, from top to bottom. \n");
    tidy_out(doc, "      - If a header cell has the headers attribute set, then the headers \n");
    tidy_out(doc, "        referenced by this attribute are inserted into the list and the \n");
    tidy_out(doc, "        search stops for the current direction.\n");
    tidy_out(doc, "        TD cells that set the axis attribute are also treated as header cells.\n");
    tidy_out(doc, " \n");
}

void TY_(ReportAccessWarning)( TidyDocImpl* doc, Node* node, uint code )
{
    ctmbstr fmt = GetFormatFromCode(code);
    doc->badAccess |= BA_WAI;
    messageNode( doc, TidyAccess, node, fmt );
}

void TY_(ReportAccessError)( TidyDocImpl* doc, Node* node, uint code )
{
    ctmbstr fmt = GetFormatFromCode(code);
    doc->badAccess |= BA_WAI;
    messageNode( doc, TidyAccess, node, fmt );
}

#endif /* SUPPORT_ACCESSIBILITY_CHECKS */

void TY_(ReportWarning)(TidyDocImpl* doc, Node *element, Node *node, uint code)
{
    Node* rpt = (element ? element : node);
    ctmbstr fmt = GetFormatFromCode(code);
    char nodedesc[256] = { 0 };
    char elemdesc[256] = { 0 };

    assert( fmt != NULL );

    TagToString(node, nodedesc, sizeof(nodedesc));

    switch (code)
    {
    case NESTED_QUOTATION:
        messageNode(doc, TidyWarning, rpt, fmt);
        break;

    case OBSOLETE_ELEMENT:
        TagToString(element, elemdesc, sizeof(elemdesc));
        messageNode(doc, TidyWarning, rpt, fmt, elemdesc, nodedesc);
        break;

    case NESTED_EMPHASIS:
        messageNode(doc, TidyWarning, rpt, fmt, nodedesc);
        break;
    case COERCE_TO_ENDTAG_WARN:
        messageNode(doc, TidyWarning, rpt, fmt, node->element, node->element);
        break;
    }
}

void TY_(ReportNotice)(TidyDocImpl* doc, Node *element, Node *node, uint code)
{
    Node* rpt = ( element ? element : node );
    ctmbstr fmt = GetFormatFromCode(code);
    char nodedesc[256] = { 0 };
    char elemdesc[256] = { 0 };

    assert( fmt != NULL );

    TagToString(node, nodedesc, sizeof(nodedesc));

    switch (code)
    {
    case TRIM_EMPTY_ELEMENT:
        TagToString(element, elemdesc, sizeof(nodedesc));
        messageNode(doc, TidyWarning, element, fmt, elemdesc);
        break;

    case REPLACING_ELEMENT:
        TagToString(element, elemdesc, sizeof(elemdesc));
        messageNode(doc, TidyWarning, rpt, fmt, elemdesc, nodedesc);
        break;
    }
}

void TY_(ReportError)(TidyDocImpl* doc, Node *element, Node *node, uint code)
{
    char nodedesc[ 256 ] = {0};
    char elemdesc[ 256 ] = {0};
    Node* rpt = ( element ? element : node );
    ctmbstr fmt = GetFormatFromCode(code);

    assert( fmt != NULL );

    TagToString(node, nodedesc, sizeof(nodedesc));

    switch ( code )
    {
    case MISSING_STARTTAG:
    case UNEXPECTED_ENDTAG:
    case TOO_MANY_ELEMENTS:
    case INSERTING_TAG:
        messageNode(doc, TidyWarning, node, fmt, node->element);
        break;

    case USING_BR_INPLACE_OF:
    case CANT_BE_NESTED:
    case PROPRIETARY_ELEMENT:
    case UNESCAPED_ELEMENT:
    case NOFRAMES_CONTENT:
        messageNode(doc, TidyWarning, node, fmt, nodedesc);
        break;

    case MISSING_TITLE_ELEMENT:
    case INCONSISTENT_VERSION:
    case MALFORMED_DOCTYPE:
    case CONTENT_AFTER_BODY:
    case MALFORMED_COMMENT:
    case BAD_COMMENT_CHARS:
    case BAD_XML_COMMENT:
    case BAD_CDATA_CONTENT:
    case INCONSISTENT_NAMESPACE:
    case DOCTYPE_AFTER_TAGS:
    case DTYPE_NOT_UPPER_CASE:
        messageNode(doc, TidyWarning, rpt, fmt);
        break;

    case COERCE_TO_ENDTAG:
    case NON_MATCHING_ENDTAG:
        messageNode(doc, TidyWarning, rpt, fmt, node->element, node->element);
        break;

    case UNEXPECTED_ENDTAG_IN:
    case TOO_MANY_ELEMENTS_IN:
        messageNode(doc, TidyWarning, node, fmt, node->element, element->element);
        if (cfgBool( doc, TidyShowWarnings ))
            messageNode(doc, TidyInfo, node, GetFormatFromCode(PREVIOUS_LOCATION),
                        element->element);
        break;

    case ENCODING_IO_CONFLICT:
    case MISSING_DOCTYPE:
    case SPACE_PRECEDING_XMLDECL:
        messageNode(doc, TidyWarning, node, fmt);
        break;

    case TRIM_EMPTY_ELEMENT:
    case ILLEGAL_NESTING:
    case UNEXPECTED_END_OF_FILE:
    case ELEMENT_NOT_EMPTY:
        TagToString(element, elemdesc, sizeof(elemdesc));
        messageNode(doc, TidyWarning, element, fmt, elemdesc);
        break;


    case MISSING_ENDTAG_FOR:
        messageNode(doc, TidyWarning, rpt, fmt, element->element);
        break;

    case MISSING_ENDTAG_BEFORE:
        messageNode(doc, TidyWarning, rpt, fmt, element->element, nodedesc);
        break;

    case DISCARDING_UNEXPECTED:
        /* Force error if in a bad form */
        messageNode(doc, doc->badForm ? TidyError : TidyWarning, node, fmt, nodedesc);
        break;

    case TAG_NOT_ALLOWED_IN:
        messageNode(doc, TidyWarning, node, fmt, nodedesc, element->element);
        if (cfgBool( doc, TidyShowWarnings ))
            messageNode(doc, TidyInfo, element,
                        GetFormatFromCode(PREVIOUS_LOCATION), element->element);
        break;

    case REPLACING_UNEX_ELEMENT:
        TagToString(element, elemdesc, sizeof(elemdesc));
        messageNode(doc, TidyWarning, rpt, fmt, elemdesc, nodedesc);
        break;
    }
}

void TY_(ReportFatal)( TidyDocImpl* doc, Node *element, Node *node, uint code)
{
    char nodedesc[ 256 ] = {0};
    Node* rpt = ( element ? element : node );
    ctmbstr fmt = GetFormatFromCode(code);

    switch ( code )
    {
    case SUSPECTED_MISSING_QUOTE:
    case DUPLICATE_FRAMESET:
        messageNode(doc, TidyError, rpt, fmt);
        break;

    case UNKNOWN_ELEMENT:
        TagToString(node, nodedesc, sizeof(nodedesc));
        messageNode( doc, TidyError, node, fmt, nodedesc );
        break;

    case UNEXPECTED_ENDTAG_IN:
        messageNode(doc, TidyError, node, fmt, node->element, element->element);
        break;

    case UNEXPECTED_ENDTAG:  /* generated by XML docs */
        messageNode(doc, TidyError, node, fmt, node->element);
        break;
    }
}

void TY_(ErrorSummary)( TidyDocImpl* doc )
{
    ctmbstr encnam = "specified";
    int charenc = cfg( doc, TidyCharEncoding ); 
    if ( charenc == WIN1252 ) 
        encnam = "Windows-1252";
    else if ( charenc == MACROMAN )
        encnam = "MacRoman";
    else if ( charenc == IBM858 )
        encnam = "ibm858";
    else if ( charenc == LATIN0 )
        encnam = "latin0";

    /* adjust badAccess to that it is 0 if frames are ok */
    if ( doc->badAccess & (BA_USING_FRAMES | BA_USING_NOFRAMES) )
    {
        if (!((doc->badAccess & BA_USING_FRAMES) && !(doc->badAccess & BA_USING_NOFRAMES)))
            doc->badAccess &= ~(BA_USING_FRAMES | BA_USING_NOFRAMES);
    }

    if (doc->badChars)
    {
#if 0
        if ( doc->badChars & WINDOWS_CHARS )
        {
            tidy_out(doc, "Characters codes for the Microsoft Windows fonts in the range\n");
            tidy_out(doc, "128 - 159 may not be recognized on other platforms. You are\n");
            tidy_out(doc, "instead recommended to use named entities, e.g. &trade; rather\n");
            tidy_out(doc, "than Windows character code 153 (0x2122 in Unicode). Note that\n");
            tidy_out(doc, "as of February 1998 few browsers support the new entities.\n\n");
        }
#endif
        if (doc->badChars & BC_VENDOR_SPECIFIC_CHARS)
        {

            tidy_out(doc, "It is unlikely that vendor-specific, system-dependent encodings\n");
            tidy_out(doc, "work widely enough on the World Wide Web; you should avoid using the \n");
            tidy_out(doc, "%s", encnam );
            tidy_out(doc, " character encoding, instead you are recommended to\n" );
            tidy_out(doc, "use named entities, e.g. &trade;.\n\n");
        }
        if ((doc->badChars & BC_INVALID_SGML_CHARS) || (doc->badChars & BC_INVALID_NCR))
        {
            tidy_out(doc, "Character codes 128 to 159 (U+0080 to U+009F) are not allowed in HTML;\n");
            tidy_out(doc, "even if they were, they would likely be unprintable control characters.\n");
            tidy_out(doc, "Tidy assumed you wanted to refer to a character with the same byte value in the \n");
            tidy_out(doc, "%s", encnam );
            tidy_out(doc, " encoding and replaced that reference with the Unicode equivalent.\n\n" );
        }
        if (doc->badChars & BC_INVALID_UTF8)
        {
            tidy_out(doc, "Character codes for UTF-8 must be in the range: U+0000 to U+10FFFF.\n");
            tidy_out(doc, "The definition of UTF-8 in Annex D of ISO/IEC 10646-1:2000 also\n");
            tidy_out(doc, "allows for the use of five- and six-byte sequences to encode\n");
            tidy_out(doc, "characters that are outside the range of the Unicode character set;\n");
            tidy_out(doc, "those five- and six-byte sequences are illegal for the use of\n");
            tidy_out(doc, "UTF-8 as a transformation of Unicode characters. ISO/IEC 10646\n");
            tidy_out(doc, "does not allow mapping of unpaired surrogates, nor U+FFFE and U+FFFF\n");
            tidy_out(doc, "(but it does allow other noncharacters). For more information please refer to\n");
            tidy_out(doc, "http://www.unicode.org/unicode and http://www.cl.cam.ac.uk/~mgk25/unicode.html\n\n");
        }

#if SUPPORT_UTF16_ENCODINGS

      if (doc->badChars & BC_INVALID_UTF16)
      {
        tidy_out(doc, "Character codes for UTF-16 must be in the range: U+0000 to U+10FFFF.\n");
        tidy_out(doc, "The definition of UTF-16 in Annex C of ISO/IEC 10646-1:2000 does not allow the\n");
        tidy_out(doc, "mapping of unpaired surrogates. For more information please refer to\n");
        tidy_out(doc, "http://www.unicode.org/unicode and http://www.cl.cam.ac.uk/~mgk25/unicode.html\n\n");
      }

#endif

      if (doc->badChars & BC_INVALID_URI)
      {
        tidy_out(doc, "URIs must be properly escaped, they must not contain unescaped\n");
        tidy_out(doc, "characters below U+0021 including the space character and not\n");
        tidy_out(doc, "above U+007E. Tidy escapes the URI for you as recommended by\n");
        tidy_out(doc, "HTML 4.01 section B.2.1 and XML 1.0 section 4.2.2. Some user agents\n");
        tidy_out(doc, "use another algorithm to escape such URIs and some server-sided\n");
        tidy_out(doc, "scripts depend on that. If you want to depend on that, you must\n");
        tidy_out(doc, "escape the URI by your own. For more information please refer to\n");
        tidy_out(doc, "http://www.w3.org/International/O-URL-and-ident.html\n\n");
      }
    }

    if (doc->badForm)
    {
        tidy_out(doc, "You may need to move one or both of the <form> and </form>\n");
        tidy_out(doc, "tags. HTML elements should be properly nested and form elements\n");
        tidy_out(doc, "are no exception. For instance you should not place the <form>\n");
        tidy_out(doc, "in one table cell and the </form> in another. If the <form> is\n");
        tidy_out(doc, "placed before a table, the </form> cannot be placed inside the\n");
        tidy_out(doc, "table! Note that one form can't be nested inside another!\n\n");
    }
    
    if (doc->badAccess)
    {
        /* Tidy "classic" accessibility tests */
        if ( cfg(doc, TidyAccessibilityCheckLevel) == 0 )
        {
            if (doc->badAccess & BA_MISSING_SUMMARY)
            {
                tidy_out(doc, "The table summary attribute should be used to describe\n");
                tidy_out(doc, "the table structure. It is very helpful for people using\n");
                tidy_out(doc, "non-visual browsers. The scope and headers attributes for\n");
                tidy_out(doc, "table cells are useful for specifying which headers apply\n");
                tidy_out(doc, "to each table cell, enabling non-visual browsers to provide\n");
                tidy_out(doc, "a meaningful context for each cell.\n\n");
            }

            if (doc->badAccess & BA_MISSING_IMAGE_ALT)
            {
                tidy_out(doc, "The alt attribute should be used to give a short description\n");
                tidy_out(doc, "of an image; longer descriptions should be given with the\n");
                tidy_out(doc, "longdesc attribute which takes a URL linked to the description.\n");
                tidy_out(doc, "These measures are needed for people using non-graphical browsers.\n\n");
            }

            if (doc->badAccess & BA_MISSING_IMAGE_MAP)
            {
                tidy_out(doc, "Use client-side image maps in preference to server-side image\n");
                tidy_out(doc, "maps as the latter are inaccessible to people using non-\n");
                tidy_out(doc, "graphical browsers. In addition, client-side maps are easier\n");
                tidy_out(doc, "to set up and provide immediate feedback to users.\n\n");
            }

            if (doc->badAccess & BA_MISSING_LINK_ALT)
            {
                tidy_out(doc, "For hypertext links defined using a client-side image map, you\n");
                tidy_out(doc, "need to use the alt attribute to provide a textual description\n");
                tidy_out(doc, "of the link for people using non-graphical browsers.\n\n");
            }

            if ((doc->badAccess & BA_USING_FRAMES) && !(doc->badAccess & BA_USING_NOFRAMES))
            {
                tidy_out(doc, "Pages designed using frames presents problems for\n");
                tidy_out(doc, "people who are either blind or using a browser that\n");
                tidy_out(doc, "doesn't support frames. A frames-based page should always\n");
                tidy_out(doc, "include an alternative layout inside a NOFRAMES element.\n\n");
            }

        }

        tidy_out(doc, "For further advice on how to make your pages accessible\n");
        tidy_out(doc, "see %s", ACCESS_URL );
        if ( cfg(doc, TidyAccessibilityCheckLevel) > 0 )
            tidy_out(doc, " and %s", ATRC_ACCESS_URL );
        tidy_out(doc, ".\n" );
        tidy_out(doc, ". You may also want to try\n" );
        tidy_out(doc, "\"http://www.cast.org/bobby/\" which is a free Web-based\n");
        tidy_out(doc, "service for checking URLs for accessibility.\n\n");
    }

    if (doc->badLayout)
    {
        if (doc->badLayout & USING_LAYER)
        {
            tidy_out(doc, "The Cascading Style Sheets (CSS) Positioning mechanism\n");
            tidy_out(doc, "is recommended in preference to the proprietary <LAYER>\n");
            tidy_out(doc, "element due to limited vendor support for LAYER.\n\n");
        }

        if (doc->badLayout & USING_SPACER)
        {
            tidy_out(doc, "You are recommended to use CSS for controlling white\n");
            tidy_out(doc, "space (e.g. for indentation, margins and line spacing).\n");
            tidy_out(doc, "The proprietary <SPACER> element has limited vendor support.\n\n");
        }

        if (doc->badLayout & USING_FONT)
        {
            tidy_out(doc, "You are recommended to use CSS to specify the font and\n");
            tidy_out(doc, "properties such as its size and color. This will reduce\n");
            tidy_out(doc, "the size of HTML files and make them easier to maintain\n");
            tidy_out(doc, "compared with using <FONT> elements.\n\n");
        }

        if (doc->badLayout & USING_NOBR)
        {
            tidy_out(doc, "You are recommended to use CSS to control line wrapping.\n");
            tidy_out(doc, "Use \"white-space: nowrap\" to inhibit wrapping in place\n");
            tidy_out(doc, "of inserting <NOBR>...</NOBR> into the markup.\n\n");
        }

        if (doc->badLayout & USING_BODY)
        {
            tidy_out(doc, "You are recommended to use CSS to specify page and link colors\n");
        }
    }
}

#if 0
void TY_(UnknownOption)( TidyDocImpl* doc, char c )
{
    message( doc, TidyConfig,
             "unrecognized option -%c use -help to list options\n", c );
}

void TY_(UnknownFile)( TidyDocImpl* doc, ctmbstr program, ctmbstr file )
{
    message( doc, TidyConfig, 
             "%s: can't open file \"%s\"\n", program, file );
}
#endif

void TY_(NeedsAuthorIntervention)( TidyDocImpl* doc )
{
    tidy_out(doc, "This document has errors that must be fixed before\n");
    tidy_out(doc, "using HTML Tidy to generate a tidied up version.\n\n");
}

void TY_(GeneralInfo)( TidyDocImpl* doc )
{
    tidy_out(doc, "To learn more about HTML Tidy see http://tidy.sourceforge.net\n");
    tidy_out(doc, "Please fill bug reports and queries using the \"tracker\" on the Tidy web site.\n");
    tidy_out(doc, "Additionally, questions can be sent to html-tidy@w3.org\n");
    tidy_out(doc, "HTML and CSS specifications are available from http://www.w3.org/\n");
    tidy_out(doc, "Lobby your company to join W3C, see http://www.w3.org/Consortium\n");
}

#if SUPPORT_ACCESSIBILITY_CHECKS

void TY_(AccessibilityHelloMessage)( TidyDocImpl* doc )
{
    tidy_out( doc, "\n" );
    tidy_out( doc, "Accessibility Checks: Version 0.1\n" );
    tidy_out( doc, "\n" );
}

#endif /* SUPPORT_ACCESSIBILITY_CHECKS */

#if 0
void TY_(HelloMessage)( TidyDocImpl* doc, ctmbstr date, ctmbstr filename )
{
    tmbchar buf[ 2048 ];
    ctmbstr platform = "", helper = "";
    ctmbstr msgfmt = "\nHTML Tidy for %s (vers %s; built on %s, at %s)\n"
                  "Parsing \"%s\"\n";

#ifdef PLATFORM_NAME
    platform = PLATFORM_NAME;
    helper = " for ";
#endif
    
    if ( TY_(tmbstrcmp)(filename, "stdin") == 0 )
    {
        /* Filename will be ignored at end of varargs */
        msgfmt = "\nHTML Tidy for %s (vers %s; built on %s, at %s)\n"
                 "Parsing console input (stdin)\n";
    }
    
    TY_(tmbsnprintf)(buf, sizeof(buf), msgfmt, helper, platform, 
                     date, __DATE__, __TIME__, filename);
    tidy_out( doc, buf );
}
#endif

void TY_(ReportMarkupVersion)( TidyDocImpl* doc )
{
    if (doc->givenDoctype)
    {
        /* todo: deal with non-ASCII characters in FPI */
        message(doc, TidyInfo, "Doctype given is \"%s\"", doc->givenDoctype);
    }

    if ( ! cfgBool(doc, TidyXmlTags) )
    {
        Bool isXhtml = doc->lexer->isvoyager;
        uint apparentVers;
        ctmbstr vers;

        apparentVers = TY_(ApparentVersion)( doc );

        vers = TY_(HTMLVersionNameFromCode)( apparentVers, isXhtml );

        if (!vers)
            vers = "HTML Proprietary";

        message( doc, TidyInfo, "Document content looks like %s", vers );

        /* Warn about missing sytem identifier (SI) in emitted doctype */
        if ( TY_(WarnMissingSIInEmittedDocType)( doc ) )
            message( doc, TidyInfo, "No system identifier in emitted doctype" );
    }
}

void TY_(ReportNumWarnings)( TidyDocImpl* doc )
{
    if ( doc->warnings > 0 || doc->errors > 0 )
    {
        tidy_out( doc, "%u %s, %u %s were found!",
                  doc->warnings, doc->warnings == 1 ? "warning" : "warnings",
                  doc->errors, doc->errors == 1 ? "error" : "errors" );

        if ( doc->errors > cfg(doc, TidyShowErrors) ||
             !cfgBool(doc, TidyShowWarnings) )
            tidy_out( doc, " Not all warnings/errors were shown.\n\n" );
        else
            tidy_out( doc, "\n\n" );
    }
    else
        tidy_out( doc, "No warnings or errors were found.\n\n" );
}

/*
 * local variables:
 * mode: c
 * indent-tabs-mode: nil
 * c-basic-offset: 4
 * eval: (c-set-offset 'substatement-open 0)
 * end:
 */