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swad_HTML.c
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// swad_HTML.c: tables, divs
/*
SWAD (Shared Workspace At a Distance),
is a web platform developed at the University of Granada (Spain),
and used to support university teaching.
This file is part of SWAD core.
Copyright (C) 1999-2025 Antonio Cañas Vargas
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/********************************* Headers ***********************************/
/*****************************************************************************/
#define _GNU_SOURCE // For vasprintf
#include <stdarg.h> // For va_start, va_end
#include <stdio.h> // For vasprintf
#include <stdlib.h> // For free
#include "swad_alert.h"
#include "swad_error.h"
#include "swad_global.h"
#include "swad_HTML.h"
/*****************************************************************************/
/**************************** Private constants ******************************/
/*****************************************************************************/
static const char *ClassAlign[HTM_NUM_HEAD_ALIGN] =
{
[HTM_HEAD_LEFT ] = "LT",
[HTM_HEAD_CENTER] = "CT",
[HTM_HEAD_RIGHT ] = "RT",
};
/*****************************************************************************/
/************************* Private global variables **************************/
/*****************************************************************************/
static unsigned HTM_TABLE_NestingLevel = 0;
static unsigned HTM_TR_NestingLevel = 0;
static unsigned HTM_TH_NestingLevel = 0;
static unsigned HTM_TD_NestingLevel = 0;
static unsigned HTM_DIV_NestingLevel = 0;
static unsigned HTM_SPAN_NestingLevel = 0;
static unsigned HTM_OL_NestingLevel = 0;
static unsigned HTM_UL_NestingLevel = 0;
static unsigned HTM_LI_NestingLevel = 0;
static unsigned HTM_DL_NestingLevel = 0;
static unsigned HTM_DT_NestingLevel = 0;
static unsigned HTM_DD_NestingLevel = 0;
static unsigned HTM_A_NestingLevel = 0;
static unsigned HTM_SCRIPT_NestingLevel = 0;
static unsigned HTM_FIELDSET_NestingLevel = 0;
static unsigned HTM_LABEL_NestingLevel = 0;
static unsigned HTM_BUTTON_NestingLevel = 0;
static unsigned HTM_TEXTAREA_NestingLevel = 0;
static unsigned HTM_SELECT_NestingLevel = 0;
static unsigned HTM_OPTGROUP_NestingLevel = 0;
static unsigned HTM_STRONG_NestingLevel = 0;
static unsigned HTM_EM_NestingLevel = 0;
static unsigned HTM_U_NestingLevel = 0;
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
static void HTM_PutAttributes (HTM_Attributes_t Attributes,
const char *FuncsOnChange); // if not null ==> must include ending ";"
/*****************************************************************************/
/******************************* Begin/end title *****************************/
/*****************************************************************************/
void HTM_TITLE_Begin (void)
{
HTM_Txt ("<title>");
}
void HTM_TITLE_End (void)
{
HTM_Txt ("</title>\n");
}
/*****************************************************************************/
/******************************* Begin/end table *****************************/
/*****************************************************************************/
void HTM_TABLE_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Class;
HTM_Txt ("<table");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Class,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print HTML *****/
HTM_TxtF (" class=\"%s\"",Class);
free (Class);
}
HTM_Txt (">");
HTM_TABLE_NestingLevel++;
}
void HTM_TABLE_BeginPadding (unsigned CellPadding)
{
HTM_Txt ("<table");
if (CellPadding)
HTM_TxtF (" class=\"CELLS_PAD_%u\"",
CellPadding); // CellPadding must be 0, 1, 2, 5 or 10
HTM_Txt (">");
HTM_TABLE_NestingLevel++;
}
void HTM_TABLE_BeginCenterPadding (unsigned CellPadding)
{
if (CellPadding)
{
HTM_TxtF ("<table class=\"FRAME_TBL_CENTER CELLS_PAD_%u\">",
CellPadding); // CellPadding must be 0, 1, 2, 5 or 10
HTM_TABLE_NestingLevel++;
}
else
HTM_TABLE_BeginCenter ();
}
void HTM_TABLE_BeginCenter (void)
{
HTM_Txt ("<table class=\"FRAME_TBL_CENTER\">");
HTM_TABLE_NestingLevel++;
}
void HTM_TABLE_BeginWidePadding (unsigned CellPadding)
{
if (CellPadding)
{
HTM_TxtF ("<table class=\"FRAME_TBL_WIDE CELLS_PAD_%u\">",
CellPadding); // CellPadding must be 0, 1, 2, 5 or 10
HTM_TABLE_NestingLevel++;
}
else
HTM_TABLE_BeginWide ();
}
void HTM_TABLE_BeginWide (void)
{
HTM_Txt ("<table class=\"FRAME_TBL_WIDE\">");
HTM_TABLE_NestingLevel++;
}
void HTM_TABLE_BeginWideMarginPadding (unsigned CellPadding)
{
if (CellPadding)
HTM_TxtF ("<table class=\"FRAME_TBL_WIDE_MARGIN CELLS_PAD_%u\">",
CellPadding); // CellPadding must be 0, 1, 2, 5, 10, 20
else
HTM_Txt ("<table class=\"FRAME_TBL_WIDE_MARGIN\">");
HTM_TABLE_NestingLevel++;
}
void HTM_TABLE_End (void)
{
if (HTM_TABLE_NestingLevel == 0) // No TABLE open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened TABLE.");
HTM_Txt ("</table>");
HTM_TABLE_NestingLevel--;
}
/*****************************************************************************/
/********************************* Table body ********************************/
/*****************************************************************************/
void HTM_TBODY_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<tbody");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
}
void HTM_TBODY_End (void)
{
HTM_Txt ("</tbody>");
}
/*****************************************************************************/
/**************************** Begin/end table row ****************************/
/*****************************************************************************/
void HTM_TR_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<tr");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_TR_NestingLevel++;
}
void HTM_TR_End (void)
{
if (HTM_TR_NestingLevel == 0) // No TR open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened TR.");
HTM_Txt ("</tr>");
HTM_TR_NestingLevel--;
}
/*****************************************************************************/
/***************************** Table heading cells ***************************/
/*****************************************************************************/
void HTM_TH (const char *Title,HTM_HeadAlign HeadAlign)
{
HTM_TH_Span (Title,HeadAlign,1,1,NULL);
}
void HTM_TH_Begin (HTM_HeadAlign HeadAlign)
{
HTM_TH_Span_Begin (HeadAlign,1,1,NULL);
}
void HTM_TH_Span (const char *Title,HTM_HeadAlign HeadAlign,
unsigned RowSpan,unsigned ColSpan,
const char *ClassFmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr = NULL;
if (ClassFmt)
if (ClassFmt[0])
{
va_start (ap,ClassFmt);
NumBytesPrinted = vasprintf (&Attr,ClassFmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
}
if (RowSpan > 1 && ColSpan > 1)
{
if (Attr)
HTM_TxtF ("<th rowspan=\"%u\" colspan=\"%u\" class=\"TIT_TBL_%s %s %s\">",
RowSpan,ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th rowspan=\"%u\" colspan=\"%u\" class=\"TIT_TBL_%s %s\">",
RowSpan,ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign]);
}
else if (RowSpan > 1)
{
if (Attr)
HTM_TxtF ("<th rowspan=\"%u\" class=\"TIT_TBL_%s %s %s\">",
RowSpan,
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th rowspan=\"%u\" class=\"TIT_TBL_%s %s\">",
RowSpan,
The_GetSuffix (),ClassAlign[HeadAlign]);
}
else if (ColSpan > 1)
{
if (Attr)
HTM_TxtF ("<th colspan=\"%u\" class=\"TIT_TBL_%s %s %s\">",
ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th colspan=\"%u\" class=\"TIT_TBL_%s %s\">",
ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign]);
}
else
{
if (Attr)
HTM_TxtF ("<th class=\"TIT_TBL_%s %s %s\">",
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th class=\"TIT_TBL_%s %s\">",
The_GetSuffix (),ClassAlign[HeadAlign]);
}
if (ClassFmt)
if (ClassFmt[0])
free (Attr);
HTM_Txt (Title);
HTM_Txt ("</th>");
}
void HTM_TH_Span_Begin (HTM_HeadAlign HeadAlign,
unsigned RowSpan,unsigned ColSpan,
const char *ClassFmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr = NULL;
if (ClassFmt)
if (ClassFmt[0])
{
va_start (ap,ClassFmt);
NumBytesPrinted = vasprintf (&Attr,ClassFmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
}
if (RowSpan > 1 && ColSpan > 1)
{
if (Attr)
HTM_TxtF ("<th rowspan=\"%u\" colspan=\"%u\" class=\"TIT_TBL_%s %s %s\">",
RowSpan,ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th rowspan=\"%u\" colspan=\"%u\" class=\"TIT_TBL_%s %s\">",
RowSpan,ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign]);
}
else if (RowSpan > 1)
{
if (Attr)
HTM_TxtF ("<th rowspan=\"%u\" class=\"TIT_TBL_%s %s %s\">",
RowSpan,
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th rowspan=\"%u\" class=\"TIT_TBL_%s %s\">",
RowSpan,
The_GetSuffix (),ClassAlign[HeadAlign]);
}
else if (ColSpan > 1)
{
if (Attr)
HTM_TxtF ("<th colspan=\"%u\" class=\"TIT_TBL_%s %s %s\">",
ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th colspan=\"%u\" class=\"TIT_TBL_%s %s\">",
ColSpan,
The_GetSuffix (),ClassAlign[HeadAlign]);
}
else
{
if (Attr)
HTM_TxtF ("<th class=\"TIT_TBL_%s %s %s\">",
The_GetSuffix (),ClassAlign[HeadAlign],Attr);
else
HTM_TxtF ("<th class=\"TIT_TBL_%s %s\">",
The_GetSuffix (),ClassAlign[HeadAlign]);
}
if (ClassFmt)
if (ClassFmt[0])
free (Attr);
HTM_TH_NestingLevel++;
}
void HTM_TH_End (void)
{
if (HTM_TH_NestingLevel == 0) // No TH open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened TR.");
HTM_Txt ("</th>");
HTM_TH_NestingLevel--;
}
void HTM_TH_Empty (unsigned NumColumns)
{
unsigned NumCol;
for (NumCol = 0;
NumCol < NumColumns;
NumCol++)
HTM_Txt ("<th></th>");
}
/*****************************************************************************/
/********************************* Table cells *******************************/
/*****************************************************************************/
void HTM_TD_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<td");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_TD_NestingLevel++;
}
void HTM_TD_End (void)
{
if (HTM_TD_NestingLevel == 0) // No TD open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened TD.");
HTM_Txt ("</td>");
HTM_TD_NestingLevel--;
}
void HTM_TD_Empty (unsigned NumColumns)
{
unsigned NumCol;
for (NumCol = 0;
NumCol < NumColumns;
NumCol++)
{
HTM_TD_Begin (NULL);
HTM_TD_End ();
}
}
void HTM_TD_ColouredEmpty (unsigned NumColumns)
{
unsigned NumCol;
for (NumCol = 0;
NumCol < NumColumns;
NumCol++)
{
HTM_TD_Begin ("class=\"%s\"",The_GetColorRows ());
HTM_TD_End ();
}
}
/*****************************************************************************/
/************************************ Divs ***********************************/
/*****************************************************************************/
void HTM_DIV_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<div");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_DIV_NestingLevel++;
}
void HTM_DIV_End (void)
{
if (HTM_DIV_NestingLevel == 0) // No DIV open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened DIV.");
HTM_Txt ("</div>");
HTM_DIV_NestingLevel--;
}
/*****************************************************************************/
/******************************** Main zone **********************************/
/*****************************************************************************/
void HTM_MAIN_Begin (const char *Class)
{
HTM_TxtF ("<main class=\"%s\">",Class);
}
void HTM_MAIN_End (void)
{
HTM_Txt ("</main>");
}
/*****************************************************************************/
/********************************* Articles **********************************/
/*****************************************************************************/
void HTM_ARTICLE_Begin (const char *ArticleId)
{
HTM_TxtF ("<article id=\"%s\">",ArticleId);
}
void HTM_ARTICLE_End (void)
{
HTM_Txt ("</article>");
}
/*****************************************************************************/
/********************************* Sections **********************************/
/*****************************************************************************/
void HTM_SECTION_Begin (const char *SectionId)
{
HTM_TxtF ("<section id=\"%s\">",SectionId);
}
void HTM_SECTION_End (void)
{
HTM_Txt ("</section>");
}
/*****************************************************************************/
/*********************************** Spans ***********************************/
/*****************************************************************************/
void HTM_SPAN_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<span");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_SPAN_NestingLevel++;
}
void HTM_SPAN_End (void)
{
if (HTM_SPAN_NestingLevel == 0) // No SPAN open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened SPAN.");
HTM_Txt ("</span>");
HTM_SPAN_NestingLevel--;
}
/*****************************************************************************/
/*********************************** Lists ***********************************/
/*****************************************************************************/
void HTM_OL_Begin (void)
{
HTM_Txt ("<ol>");
HTM_OL_NestingLevel++;
}
void HTM_OL_End (void)
{
if (HTM_OL_NestingLevel == 0) // No OL open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened OL.");
HTM_Txt ("</ol>");
HTM_OL_NestingLevel--;
}
void HTM_UL_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<ul");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_UL_NestingLevel++;
}
void HTM_UL_End (void)
{
if (HTM_UL_NestingLevel == 0) // No UL open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened UL.");
HTM_Txt ("</ul>");
HTM_UL_NestingLevel--;
}
/*****************************************************************************/
/******************************** List items *********************************/
/*****************************************************************************/
void HTM_LI_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<li");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_LI_NestingLevel++;
}
void HTM_LI_End (void)
{
if (HTM_LI_NestingLevel == 0) // No LI open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened LI.");
HTM_Txt ("</li>");
HTM_LI_NestingLevel--;
}
/*****************************************************************************/
/****************************** Definition lists *****************************/
/*****************************************************************************/
void HTM_DL_Begin (void)
{
HTM_Txt ("<dl>");
HTM_DL_NestingLevel++;
}
void HTM_DL_End (void)
{
if (HTM_DL_NestingLevel == 0) // No DL open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened DL.");
HTM_Txt ("</dl>");
HTM_DL_NestingLevel--;
}
void HTM_DT_Begin (void)
{
HTM_Txt ("<dt>");
HTM_DT_NestingLevel++;
}
void HTM_DT_End (void)
{
if (HTM_DL_NestingLevel == 0) // No DT open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened DT.");
HTM_Txt ("</dt>");
HTM_DT_NestingLevel--;
}
void HTM_DD_Begin (void)
{
HTM_Txt ("<dd>");
HTM_DD_NestingLevel++;
}
void HTM_DD_End (void)
{
if (HTM_DD_NestingLevel == 0) // No DD open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened DD.");
HTM_Txt ("</dd>");
HTM_DD_NestingLevel--;
}
/*****************************************************************************/
/********************************** Anchors **********************************/
/*****************************************************************************/
void HTM_A_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<a");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_A_NestingLevel++;
}
void HTM_A_End (void)
{
if (HTM_A_NestingLevel == 0) // No A open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened A.");
HTM_Txt ("</a>");
HTM_A_NestingLevel--;
}
/*****************************************************************************/
/*********************************** Scripts *********************************/
/*****************************************************************************/
void HTM_SCRIPT_Begin (const char *URL,const char *CharSet)
{
HTM_Txt ("<script type=\"text/javascript\"");
if (URL)
if (URL[0])
HTM_TxtF (" src=\"%s\"",URL);
if (CharSet)
if (CharSet[0])
HTM_TxtF (" charset=\"%s\"",CharSet);
HTM_Txt (">\n");
HTM_SCRIPT_NestingLevel++;
}
void HTM_SCRIPT_End (void)
{
if (HTM_SCRIPT_NestingLevel == 0) // No SCRIPT open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened SCRIPT.");
HTM_Txt ("</script>\n");
HTM_SCRIPT_NestingLevel--;
}
/*****************************************************************************/
/********************************* Parameters ********************************/
/*****************************************************************************/
void HTM_PARAM (const char *Name,const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Value;
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Value,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print HTML *****/
HTM_TxtF ("\n<param name=\"%s\" value=\"%s\">",Name,Value);
free (Value);
}
}
/*****************************************************************************/
/********************************* Fieldsets *********************************/
/*****************************************************************************/
void HTM_FIELDSET_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<fieldset");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_FIELDSET_NestingLevel++;
}
void HTM_FIELDSET_End (void)
{
if (HTM_FIELDSET_NestingLevel == 0) // No FIELDSET open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened FIELDSET.");
HTM_Txt ("</fieldset>");
HTM_FIELDSET_NestingLevel--;
}
void HTM_LEGEND (const char *Txt)
{
HTM_Txt ("<legend>");
HTM_Txt (Txt);
HTM_Txt ("</legend>");
}
/*****************************************************************************/
/*********************************** Labels **********************************/
/*****************************************************************************/
void HTM_LABEL_Begin (const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;
HTM_Txt ("<label");
if (fmt)
if (fmt[0])
{
va_start (ap,fmt);
NumBytesPrinted = vasprintf (&Attr,fmt,ap);
va_end (ap);
if (NumBytesPrinted < 0) // -1 if no memory or any other error
Err_NotEnoughMemoryExit ();
/***** Print attributes *****/
HTM_SPTxt (Attr);
free (Attr);
}
HTM_Txt (">");
HTM_LABEL_NestingLevel++;
}
void HTM_LABEL_End (void)
{
if (HTM_LABEL_NestingLevel == 0) // No LABEL open
Ale_ShowAlert (Ale_ERROR,"Trying to close unopened LABEL.");
HTM_Txt ("</label>");
HTM_LABEL_NestingLevel--;
}
/*****************************************************************************/
/************************* Input text, email, url ****************************/
/*****************************************************************************/
void HTM_INPUT_TEXT (const char *Name,unsigned MaxLength,const char *Value,
HTM_Attributes_t Attributes,const char *fmt,...)
{
va_list ap;
int NumBytesPrinted;
char *Attr;