HTML.CPP
/*++
Copyright (c) 1997 Microsoft Corporation
Module Name: html.cpp
Abstract:
This module contains simple HTML authoring functions.
--*/
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <httpext.h>
#include <stdio.h>
#include <stdarg.h>
#include "html.h"
void
WriteString(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpsz
)
{
DWORD dwBytesWritten;
dwBytesWritten = lstrlen( lpsz );
pECB->WriteClient( pECB->ConnID, (PVOID) lpsz, &dwBytesWritten, 0 );
}
void
HtmlCreatePage(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszTitle
)
{
WriteString( pECB, "<HTML>\r\n\r\n" );
if ( lpszTitle ) {
WriteString( pECB, "<HEAD><TITLE>" );
HtmlWriteText( pECB, lpszTitle );
WriteString( pECB, "</TITLE></HEAD>\r\n\r\n" );
}
WriteString( pECB, "<BODY>\r\n\r\n" );
}
void
HtmlEndPage(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</BODY>\r\n\r\n" );
WriteString( pECB, "</HTML>\r\n" );
}
void
HtmlHeading(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN int nHeading,
IN LPCSTR lpszText
)
{
HtmlBeginHeading( pECB, nHeading );
HtmlWriteText( pECB, lpszText );
HtmlEndHeading( pECB, nHeading );
}
void
HtmlBeginHeading(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN int nHeading
)
{
char szCode[16];
wsprintf( szCode, "<H%i>", nHeading );
WriteString( pECB, szCode );
}
void
HtmlEndHeading(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN int nHeading
)
{
char szCode[16];
wsprintf( szCode, "</H%i>", nHeading );
WriteString( pECB, szCode );
}
void
HtmlWriteTextLine(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpsz
)
{
HtmlWriteText( pECB, lpsz );
WriteString( pECB, "\r\n" );
}
void
HtmlWriteText(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpsz
)
{
char szBuf[1028];
int nLen;
int i;
//
// Build up enough data to make call to WriteString
// worthwhile; convert special chars too.
//
nLen = 0;
for ( i = 0; lpsz[i]; i++ ) {
if ( lpsz[i] == '<' )
lstrcpy( &szBuf[nLen], "<" );
else if ( lpsz[i] == '>' )
lstrcpy( &szBuf[nLen], ">" );
else if ( lpsz[i] == '&' )
lstrcpy( &szBuf[nLen], "&" );
else if ( lpsz[i] == '\"' )
lstrcpy( &szBuf[nLen], """ );
else {
szBuf[nLen] = lpsz[i];
szBuf[nLen + 1] = 0;
}
nLen += lstrlen( &szBuf[nLen] );
if ( nLen >= 1024 ) {
WriteString( pECB, szBuf );
nLen = 0;
}
}
if ( nLen )
WriteString( pECB, szBuf );
}
void
HtmlEndParagraph(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<P>\r\n" );
}
//
// HtmlHyperLink adds a hyptertext link. lpszDoc is the destination
// document, and lpszText is the display text.
//
// HtmlHyperLinkAndBookmark adds a hyperlink with a bookmark link.
// HtmlBookmarkLink adds only a bookmark link.
//
void
HtmlHyperLink(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszDoc,
IN LPCSTR lpszText
)
{
WriteString( pECB, "<A HREF=\"" );
HtmlWriteText( pECB, lpszDoc );
WriteString( pECB, "\">" );
HtmlWriteText( pECB, lpszText );
WriteString( pECB, "</A>\r\n" );
}
void
HtmlHyperLinkAndBookmark(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszDoc,
IN LPCSTR lpszBookmark,
IN LPCSTR lpszText
)
{
WriteString( pECB, "<A HREF=\"" );
if ( lpszDoc )
HtmlWriteText( pECB, lpszDoc );
WriteString( pECB, "#" );
HtmlWriteText( pECB, lpszBookmark );
WriteString( pECB, "\">" );
HtmlWriteText( pECB, lpszText );
WriteString( pECB, "</A>\r\n" );
}
void
HtmlBookmarkLink(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszBookmark,
IN LPCSTR lpszText
)
{
HtmlHyperLinkAndBookmark( pECB, NULL, lpszBookmark, lpszText );
}
//
// The following support list formatting.
//
void
HtmlBeginUnnumberedList(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<UL>\r\n" );
}
void
HtmlBeginListItem(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<LI>" );
}
void
HtmlEndUnnumberedList(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</UL>" );
}
void
HtmlBeginNumberedList(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<OL>" );
}
void
HtmlEndNumberedList(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</OL>" );
}
void
HtmlBeginDefinitionList(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<DL>" );
}
void
HtmlEndDefinitionList(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</DL>" );
}
void
HtmlDefinition(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszTerm,
IN LPSTR lpszDef
)
{
int nStart, nEnd, nLen;
char tcHolder;
WriteString( pECB, "<DT> " );
HtmlWriteText( pECB, lpszTerm );
WriteString( pECB, "\r\n" );
WriteString( pECB, "<DD> " );
nStart = 0;
nLen = lstrlen( lpszDef );
do {
nEnd = nStart + 70;
if ( nEnd >= nLen ) {
HtmlWriteText( pECB, &lpszDef[nStart] );
WriteString( pECB, "\r\n" );
break;
}
while ( nEnd > nStart )
if ( lpszDef[nEnd] == ' ' )
break;
if ( nEnd == nStart )
// too long!
nEnd = nStart + 70;
// write defintion segment
tcHolder = lpszDef[nEnd];
lpszDef[nEnd] = 0;
HtmlWriteText( pECB, &lpszDef[nStart] );
WriteString( pECB, "\r\n" );
lpszDef[nEnd] = tcHolder;
nStart = nEnd;
// skip excess whitespace
while ( lpszDef[nStart] == ' ' )
nStart++;
// pretty formatting
if ( nStart < nLen )
WriteString( pECB, " " );
} while ( nStart < nLen );
}
// For complex defintions
void
HtmlBeginDefinitionTerm(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<DT>" );
}
void
HtmlBeginDefinition(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<DD>" );
}
//
// Text formatting
//
void
HtmlBeginPreformattedText(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<PRE>" );
}
void
HtmlEndPreformattedText(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</PRE>" );
}
void
HtmlBeginBlockQuote(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<BLOCKQUOTE>" );
}
void
HtmlEndBlockQuote(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</BLOCKQUOTE>" );
}
void
HtmlBeginAddress(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<ADDRESS>" );
}
void
HtmlEndAddress(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</ADDRESS>" );
}
void
HtmlBeginDefine(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<DFN>" );
}
void
HtmlEndDefine(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</DFN>" );
}
void
HtmlBeginEmphasis(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<EM>" );
}
void
HtmlEndEmphasis(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</EM>" );
}
void
HtmlBeginCitation(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<CITE>" );
}
void
HtmlEndCitation(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</CITE>" );
}
void
HtmlBeginCode(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<CODE>" );
}
void
HtmlEndCode(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</CODE>" );
}
void
HtmlBeginKeyboard(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<KBD>" );
}
void
HtmlEndKeyboard(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</KBD>" );
}
void
HtmlBeginStatus(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<SAMP>" );
}
void
HtmlEndStatus(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</SAMP>" );
}
void
HtmlBeginStrong(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<STRONG>" );
}
void
HtmlEndStrong(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</STRONG>" );
}
void
HtmlBeginVariable(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<VAR>" );
}
void
HtmlEndVariable(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</VAR>" );
}
void
HtmlBold(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszText
)
{
HtmlBeginBold( pECB );
HtmlWriteText( pECB, lpszText );
HtmlEndBold( pECB );
}
void
HtmlBeginBold(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<B>" );
}
void
HtmlEndBold(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</B>" );
}
void
HtmlItalic(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszText
)
{
HtmlBeginItalic( pECB );
HtmlWriteText( pECB, lpszText );
HtmlEndItalic( pECB );
}
void
HtmlBeginItalic(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<I>" );
}
void
HtmlEndItalic(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</I>" );
}
void
HtmlFixed(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszText
)
{
HtmlBeginFixed( pECB );
HtmlWriteText( pECB, lpszText );
HtmlEndFixed( pECB );
}
void
HtmlBeginFixed(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<TT>" );
}
void
HtmlEndFixed(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "</TT>" );
}
void
HtmlLineBreak(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "<BR>\r\n" );
}
void
HtmlHorizontalRule(
IN EXTENSION_CONTROL_BLOCK * pECB
)
{
WriteString( pECB, "\r\n<HR>\r\n" );
}
void
HtmlImage(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszPicFile,
IN LPCSTR lpszAltText
)
{
WriteString( pECB, "<IMG SRC = \"" );
HtmlWriteText( pECB, lpszPicFile );
WriteString( pECB, "\"" );
if ( lpszAltText ) {
WriteString( pECB, " ALT = \"" );
HtmlWriteText( pECB, lpszAltText );
WriteString( pECB, "\"" );
}
WriteString( pECB, ">\r\n" );
}
void
HtmlPrintf(
IN EXTENSION_CONTROL_BLOCK * pECB,
IN LPCSTR lpszFormat,
...
)
{
char szBuf[8192];
va_list list;
va_start( list, lpszFormat );
vsprintf( szBuf, lpszFormat, list );
WriteString( pECB, szBuf );
va_end( list );
}