'\"
'\" Generated from file '/usr/obj/ports/tcllib-1.10/tcllib-1.10/modules/html/html.man' by tcllib/doctools with format 'nroff'
'\"
'\" The definitions below are for supplemental macros used in Tcl/Tk
'\" manual entries.
'\"
'\" .AP type name in/out ?indent?
'\"	Start paragraph describing an argument to a library procedure.
'\"	type is type of argument (int, etc.), in/out is either "in", "out",
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'\" .AS ?type? ?name?
'\"	Give maximum sizes of arguments for setting tab stops.  Type and
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'\"	Begin code excerpt.
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'\"	options follow on successive lines, in four columns separated
'\"	by tabs.
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'\" .SE
'\"	End of list of standard options for a Tk widget.
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'\" .UL arg1 arg2
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.de SO
.SH "STANDARD OPTIONS"
.LP
.nf
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..
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.ft R
.LP
See the \\fBoptions\\fR manual entry for details on the standard options.
..
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.de OP
.LP
.nf
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Command-Line Name:	\\fB\\$1\\fR
Database Name:	\\fB\\$2\\fR
Database Class:	\\fB\\$3\\fR
.fi
.IP
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.de UL
\\$1\l'|0\(ul'\\$2
..
.TH "html" n 1.4 html "HTML Generation"
.BS
.SH NAME
html \- Procedures to generate HTML structures
.SH SYNOPSIS
package require \fBTcl  8.2\fR
.sp
package require \fBhtml  ?1.4?\fR
.sp
\fB::html::author\fR \fIauthor\fR
.sp
\fB::html::bodyTag\fR \fIargs\fR
.sp
\fB::html::cell\fR \fIparam value\fR ?\fItag\fR?
.sp
\fB::html::checkbox\fR \fIname value\fR
.sp
\fB::html::checkSet\fR \fIkey sep list\fR
.sp
\fB::html::checkValue\fR \fIname\fR ?\fIvalue\fR?
.sp
\fB::html::closeTag\fR
.sp
\fB::html::default\fR \fIkey\fR ?\fIparam\fR?
.sp
\fB::html::description\fR \fIdescription\fR
.sp
\fB::html::end\fR
.sp
\fB::html::eval\fR \fIarg\fR ?\fIargs\fR?
.sp
\fB::html::extractParam\fR \fIparam key\fR ?\fIvarName\fR?
.sp
\fB::html::font\fR \fIargs\fR
.sp
\fB::html::for\fR \fIstart test next body\fR
.sp
\fB::html::foreach\fR \fIvarlist1 list1\fR ?\fIvarlist2 list2 ...\fR? \fIbody\fR
.sp
\fB::html::formValue\fR \fIname\fR ?\fIdefvalue\fR?
.sp
\fB::html::getFormInfo\fR \fIargs\fR
.sp
\fB::html::getTitle\fR
.sp
\fB::html::h\fR \fIlevel string\fR ?\fIparam\fR?
.sp
\fB::html::h1\fR \fIstring\fR ?\fIparam\fR?
.sp
\fB::html::h2\fR \fIstring\fR ?\fIparam\fR?
.sp
\fB::html::h3\fR \fIstring\fR ?\fIparam\fR?
.sp
\fB::html::h4\fR \fIstring\fR ?\fIparam\fR?
.sp
\fB::html::h5\fR \fIstring\fR ?\fIparam\fR?
.sp
\fB::html::h6\fR \fIstring\fR ?\fIparam\fR?
.sp
\fB::html::hdrRow\fR \fIargs\fR
.sp
\fB::html::head\fR \fItitle\fR
.sp
\fB::html::headTag\fR \fIstring\fR
.sp
\fB::html::html_entities\fR \fIstring\fR
.sp
\fB::html::if\fR \fIexpr1 body1\fR ?\fBelseif\fR \fIexpr2 body2 ...\fR? ?\fBelse\fR \fIbodyN\fR?
.sp
\fB::html::init\fR ?\fIlist\fR?
.sp
\fB::html::keywords\fR \fIargs\fR
.sp
\fB::html::mailto\fR \fIemail\fR ?\fIsubject\fR?
.sp
\fB::html::meta\fR \fIargs\fR
.sp
\fB::html::minorList\fR \fIlist\fR ?\fIordered\fR?
.sp
\fB::html::minorMenu\fR \fIlist\fR ?\fIsep\fR?
.sp
\fB::html::nl2br\fR \fIstring\fR
.sp
\fB::html::openTag\fR \fItag\fR ?\fIparam\fR?
.sp
\fB::html::paramRow\fR \fIlist\fR ?\fIrparam\fR? ?\fIcparam\fR?
.sp
\fB::html::passwordInput\fR ?\fIname\fR?
.sp
\fB::html::passwordInputRow\fR \fIlabel\fR ?\fIname\fR?
.sp
\fB::html::quoteFormValue\fR \fIvalue\fR
.sp
\fB::html::radioSet\fR \fIkey sep list\fR
.sp
\fB::html::radioValue\fR \fIname value\fR
.sp
\fB::html::refresh\fR \fIseconds url\fR
.sp
\fB::html::row\fR \fIargs\fR
.sp
\fB::html::select\fR \fIname param choices\fR ?\fIcurrent\fR?
.sp
\fB::html::selectPlain\fR \fIname param choices\fR ?\fIcurrent\fR?
.sp
\fB::html::set\fR \fIvar val\fR
.sp
\fB::html::submit\fR \fIlabel\fR ?\fIname\fR?
.sp
\fB::html::tableFromArray\fR \fIarrname\fR ?\fIparam\fR? ?\fIpat\fR?
.sp
\fB::html::tableFromList\fR \fIquerylist\fR ?\fIparam\fR?
.sp
\fB::html::textarea\fR \fIname\fR ?\fIparam\fR? ?\fIcurrent\fR?
.sp
\fB::html::textInput\fR \fIname value args\fR
.sp
\fB::html::textInputRow\fR \fIlabel name value args\fR
.sp
\fB::html::varEmpty\fR \fIname\fR
.sp
\fB::html::while\fR \fItest body\fR
.sp
.BE
.SH DESCRIPTION
.PP
The package \fBhtml\fR provides commands that generate HTML.
These commands typically return an HTML string as their result. In
particular, they do not output their result to \fBstdout\fR.
.PP
The command \fB::html::init\fR should be called early to initialize
the module.  You can also use this procedure to define default values
for HTML tag parameters.
.TP
\fB::html::author\fR \fIauthor\fR
\fISide effect only\fR.  Call this before \fB::html::head\fR to
define an author for the page.  The author is noted in a comment in
the HEAD section.
.TP
\fB::html::bodyTag\fR \fIargs\fR
Generate a \fIbody\fR tag.  The tag parameters are taken from \fIargs\fR or
from the body.* attributes define with \fB::html::init\fR.
.TP
\fB::html::cell\fR \fIparam value\fR ?\fItag\fR?
Generate a \fItd\fR (or \fIth\fR) tag, a value, and a closing
\fItd\fR (or \fIth\fR) tag. The
tag parameters come from \fIparam\fR or TD.* attributes defined with
\fB::html::init\fR.  This uses \fB::html::font\fR to insert a standard
\fIfont\fR tag into the table cell. The \fItag\fR argument defaults to "td".
.TP
\fB::html::checkbox\fR \fIname value\fR
Generate a \fIcheckbox\fR form element with the specified name and value.
This uses \fB::html::checkValue\fR.
.TP
\fB::html::checkSet\fR \fIkey sep list\fR
Generate a set of \fIcheckbox\fR form elements and associated labels.  The
\fIlist\fR should contain an alternating list of labels and values.
This uses \fB::html::checkbox\fR. All the \fIcheckbox\fR buttons share the
same \fIkey\fR for their name. The \fIsep\fR is text used to separate
the elements.
.TP
\fB::html::checkValue\fR \fIname\fR ?\fIvalue\fR?
Generate the "name=\fIname\fR value=\fIvalue\fR for a \fIcheckbox\fR form
element.  If the CGI variable \fIname\fR has the value \fIvalue\fR,
then SELECTED is added to the return value. \fIvalue\fR defaults to
"1".
.TP
\fB::html::closeTag\fR
Pop a tag off the stack created by \fB::html::openTag\fR and generate
the corresponding close tag (e.g., </body>).
.TP
\fB::html::default\fR \fIkey\fR ?\fIparam\fR?
This procedure is used by \fB::html::tagParam\fR to generate the name,
value list of parameters for a tag.  The \fB::html::default\fR
procedure is used to generate default values for those items not
already in \fIparam\fR.  If the value identified by \fIkey\fR matches
a value in \fIparam\fR then this procedure returns the empty string.
Otherwise, it returns a "parameter=value" string for a form element
identified by \fIkey\fR.  The \fIkey\fR has the form "tag.parameter"
(e.g., body.bgcolor).  Use \fB::html::init\fR to register default
values. \fIparam\fR defaults to the empty string.
.TP
\fB::html::description\fR \fIdescription\fR
\fISide effect only\fR.  Call this before \fB::html::head\fR to
define a description \fImeta\fR tag for the page.  This tag is generated
later in the call to \fB::html::head\fR.
.TP
\fB::html::end\fR
Pop all open tags from the stack and generate the corresponding close
HTML tags, (e.g., </body></html>).
.TP
\fB::html::eval\fR \fIarg\fR ?\fIargs\fR?
This procedure is similar to the built-in Tcl \fBeval\fR command.  The
only difference is that it returns "" so it can be called from an HTML
template file without appending unwanted results.
.TP
\fB::html::extractParam\fR \fIparam key\fR ?\fIvarName\fR?
This is a parsing procedure that extracts the value of \fIkey\fR from
\fIparam\fR, which is a HTML-style "name=quotedvalue" list.
\fIvarName\fR is used as the name of a Tcl variable that is changed to
have the value found in the parameters.  The function returns 1 if the
parameter was found in \fIparam\fR, otherwise it returns 0.  If the
\fIvarName\fR is not specified, then \fIkey\fR is used as the variable
name.
.TP
\fB::html::font\fR \fIargs\fR
Generate a standard \fIfont\fR tag.  The parameters to the tag are taken
from \fIargs\fR and the HTML defaults defined with \fB::html::init\fR.
.TP
\fB::html::for\fR \fIstart test next body\fR
This procedure is similar to the built-in Tcl \fBfor\fR control
structure.  Rather than evaluating the body, it returns the subst'ed
\fIbody\fR. Each iteration of the loop causes another string to be
concatenated to the result value.
.TP
\fB::html::foreach\fR \fIvarlist1 list1\fR ?\fIvarlist2 list2 ...\fR? \fIbody\fR
This procedure is similar to the built-in Tcl \fBforeach\fR control
structure.  Rather than evaluating the body, it returns the subst'ed
\fIbody\fR.  Each iteration of the loop causes another string to be
concatenated to the result value.
.TP
\fB::html::formValue\fR \fIname\fR ?\fIdefvalue\fR?
Return a name and value pair, where the value is initialized from
existing CGI data, if any.  The result has this form:
.sp
.nf

  name="fred" value="freds value"

.fi
.TP
\fB::html::getFormInfo\fR \fIargs\fR
Generate hidden fields to capture form values.  If \fIargs\fR is
empty, then hidden fields are generated for all CGI values.  Otherwise
args is a list of string match patterns for form element names.
.TP
\fB::html::getTitle\fR
Return the title string, with out the surrounding \fItitle\fR tag,
set with a previous call to \fB::html::title\fR.
.TP
\fB::html::h\fR \fIlevel string\fR ?\fIparam\fR?
Generate a heading (e.g., \fIh\fBlevel\fR\fR) tag.  The \fIstring\fR is nested in the
heading, and \fIparam\fR is used for the tag parameters.
.TP
\fB::html::h1\fR \fIstring\fR ?\fIparam\fR?
Generate an \fIh1\fR tag.  See \fB::html::h\fR.
.TP
\fB::html::h2\fR \fIstring\fR ?\fIparam\fR?
Generate an \fIh2\fR tag.  See \fB::html::h\fR.
.TP
\fB::html::h3\fR \fIstring\fR ?\fIparam\fR?
Generate an \fIh3\fR tag.  See \fB::html::h\fR.
.TP
\fB::html::h4\fR \fIstring\fR ?\fIparam\fR?
Generate an \fIh4\fR tag.  See \fB::html::h\fR.
.TP
\fB::html::h5\fR \fIstring\fR ?\fIparam\fR?
Generate an \fIh5\fR tag.  See \fB::html::h\fR.
.TP
\fB::html::h6\fR \fIstring\fR ?\fIparam\fR?
Generate an \fIh6\fR tag.  See \fB::html::h\fR.
.TP
\fB::html::hdrRow\fR \fIargs\fR
Generate a table row, including \fItr\fR and \fIth\fR tags.
Each value in \fIargs\fR is place into its own table cell.
This uses \fB::html::cell\fR.
.TP
\fB::html::head\fR \fItitle\fR
Generate the \fIhead\fR section that includes the page \fItitle\fR.
If previous calls have been made to
\fB::html::author\fR,
\fB::html::keywords\fR,
\fB::html::description\fR,
or
\fB::html::meta\fR
then additional tags are inserted into the \fIhead\fR section.
This leaves an open \fIhtml\fR tag pushed on the stack with
\fB::html::openTag\fR.
.TP
\fB::html::headTag\fR \fIstring\fR
Save a tag for inclusion in the \fIhead\fR section generated by
\fB::html::head\fR.  The \fIstring\fR is everything in the tag except
the enclosing angle brackets, < >.
.TP
\fB::html::html_entities\fR \fIstring\fR
This command replaces all special characters in the \fIstring\fR with
their HTML entities and returns the modified text.
.TP
\fB::html::if\fR \fIexpr1 body1\fR ?\fBelseif\fR \fIexpr2 body2 ...\fR? ?\fBelse\fR \fIbodyN\fR?
This procedure is similar to the built-in Tcl \fBif\fR control
structure.  Rather than evaluating the body of the branch that is
taken, it returns the subst'ed \fIbody\fR.  Note that the syntax is
slightly more restrictive than that of the built-in Tcl \fBif\fR
control structure.
.TP
\fB::html::init\fR ?\fIlist\fR?
\fB::html::init\fR accepts a Tcl-style name-value list that defines
values for items with a name of the form "tag.parameter".  For
example, a default with key "body.bgcolor" defines the background
color for the \fIbody\fR tag.
.TP
\fB::html::keywords\fR \fIargs\fR
\fISide effect only\fR.  Call this before \fB::html::head\fR to
define a keyword \fImeta\fR tag for the page.  The \fImeta\fR tag
is included in the result of \fB::html::head\fR.
.TP
\fB::html::mailto\fR \fIemail\fR ?\fIsubject\fR?
Generate a hypertext link to a mailto: URL.
.TP
\fB::html::meta\fR \fIargs\fR
\fISide effect only\fR.  Call this before \fB::html::head\fR to
define a \fImeta\fR tag for the page.  The \fIargs\fR is a Tcl-style name,
value list that is used for the name= and value= parameters for the
\fImeta\fR tag.  The \fImeta\fR tag is included in the result of
\fB::html::head\fR.
.TP
\fB::html::minorList\fR \fIlist\fR ?\fIordered\fR?
Generate an ordered or unordered list of links.  The \fIlist\fR is a
Tcl-style name, value list of labels and urls for the links.
\fIordered\fR is a boolean used to choose between an ordered or
unordered list. It defaults to \fBfalse\fR.
.TP
\fB::html::minorMenu\fR \fIlist\fR ?\fIsep\fR?
Generate a series of hypertext links.  The \fIlist\fR is a Tcl-style
name, value list of labels and urls for the links.  The \fIsep\fR is
the text to put between each link. It defaults to " | ".
.TP
\fB::html::nl2br\fR \fIstring\fR
This command replaces all line-endings in the \fIstring\fR with a
\fIbr\fR tag and returns the modified text.
.TP
\fB::html::openTag\fR \fItag\fR ?\fIparam\fR?
Push \fItag\fR onto a stack and generate the opening tag for
\fItag\fR. Use \fB::html::closeTag\fR to pop the tag from the
stack. The second argument provides any tag arguments, as a
list whose elements are formatted to be in the form
"\fBkey\fR=\fBvalue\fR".
.TP
\fB::html::paramRow\fR \fIlist\fR ?\fIrparam\fR? ?\fIcparam\fR?
Generate a table row, including \fItr\fR and \fItd\fR tags. Each value in
\fIlist\fR is placed into its own table cell. This uses
\fB::html::cell\fR. The value of \fIrparam\fR is used as parameter for
the \fItr\fR tag. The value of \fIcparam\fR is passed to \fB::html::cell\fR
as parameter for the \fItd\fR tags.
.TP
\fB::html::passwordInput\fR ?\fIname\fR?
Generate an \fIinput\fR tag of type \fIpassword\fR. The \fIname\fR defaults to
"password".
.TP
\fB::html::passwordInputRow\fR \fIlabel\fR ?\fIname\fR?
Format a table row containing a label and an \fIinput\fR tag of type
\fIpassword\fR. The \fIname\fR defaults to "password".
.TP
\fB::html::quoteFormValue\fR \fIvalue\fR
Quote special characters in \fIvalue\fR by replacing them with HTML
entities for quotes, ampersand, and angle brackets.
.TP
\fB::html::radioSet\fR \fIkey sep list\fR
Generate a set of \fIinput\fR tags of type \fIradio\fR and an associated text
label.  All the radio buttons share the same \fIkey\fR for their name.
The \fIsep\fR is text used to separate the elements.  The \fIlist\fR
is a Tcl-style label, value list.
.TP
\fB::html::radioValue\fR \fIname value\fR
Generate the "name=\fIname\fR value=\fIvalue\fR for a \fIradio\fR form
element.  If the CGI variable \fIname\fR has the value \fIvalue\fR,
then SELECTED is added to the return value.
.TP
\fB::html::refresh\fR \fIseconds url\fR
Set up a refresh \fImeta\fR tag. Call this before \fB::html::head\fR and the
HEAD section will contain a \fImeta\fR tag that causes the document to
refresh in \fIseconds\fR seconds.  The \fIurl\fR is optional.  If
specified, it specifies a new page to load after the refresh interval.
.TP
\fB::html::row\fR \fIargs\fR
Generate a table row, including \fItr\fR and \fItd\fR tags.  Each value in
\fIargs\fR is place into its own table cell. This uses
\fB::html::cell\fR. Ignores any default information set up via
\fB::html::init\fR.
.TP
\fB::html::select\fR \fIname param choices\fR ?\fIcurrent\fR?
Generate a \fIselect\fR form element and nested \fIoption\fR tags. The \fIname\fR
and \fIparam\fR are used to generate the \fIselect\fR tag. The \fIchoices\fR
list is a Tcl-style name, value list.
.TP
\fB::html::selectPlain\fR \fIname param choices\fR ?\fIcurrent\fR?
Like \fB::html::select\fR except that \fIchoices\fR is a Tcl list of
values used for the \fIoption\fR tags.  The label and the value for each
\fIoption\fR are the same.
.TP
\fB::html::set\fR \fIvar val\fR
This procedure is similar to the built-in Tcl \fBset\fR command.  The
main difference is that it returns "" so it can be called from an HTML
template file without appending unwanted results.  The other
difference is that it must take two arguments.
.TP
\fB::html::submit\fR \fIlabel\fR ?\fIname\fR?
Generate an \fIinput\fR tag of type \fIsubmit\fR. \fIname\fR defaults to "submit".
.TP
\fB::html::tableFromArray\fR \fIarrname\fR ?\fIparam\fR? ?\fIpat\fR?
Generate a two-column \fItable\fR and nested rows to display a Tcl array. The
table gets a heading that matches the array name, and each generated row
contains a name, value pair. The array names are sorted (\fBlsort\fR without
special options). The argument \fIparam\fR is for the \fItable\fR tag and has
to contain a pre-formatted string. The \fIpat\fR is a \fBstring match\fR
pattern used to select the array elements to show in the table. It defaults to
\fB*\fR, i.e. the whole array is shown.
.TP
\fB::html::tableFromList\fR \fIquerylist\fR ?\fIparam\fR?
Generate a two-column \fItable\fR and nested rows to display \fIquerylist\fR,
which is a Tcl dictionary. Each generated row contains a name, value pair. The
information is shown in the same order as specified in the dictionary. The
argument \fIparam\fR is for the \fItable\fR tag  and has to contain a
pre-formatted string.
.TP
\fB::html::textarea\fR \fIname\fR ?\fIparam\fR? ?\fIcurrent\fR?
Generate a \fItextarea\fR tag wrapped around its current values.
.TP
\fB::html::textInput\fR \fIname value args\fR
Generate an \fIinput\fR form tag with type \fItext\fR.  This uses
\fB::html::formValue\fR.  The args is any additional tag attributes
you want to put into the \fIinput\fR tag.
.TP
\fB::html::textInputRow\fR \fIlabel name value args\fR
Generate an \fIinput\fR form tag with type \fItext\fR formatted into a table row
with an associated label.  The args is any additional tag attributes
you want to put into the \fIinput\fR tag.
.TP
\fB::html::varEmpty\fR \fIname\fR
This returns 1 if the named variable either does not exist or has the
empty string for its value.
.TP
\fB::html::while\fR \fItest body\fR
This procedure is similar to the built-in Tcl \fBwhile\fR control
structure.  Rather than evaluating the body, it returns the subst'ed
\fIbody\fR.  Each iteration of the loop causes another string to be
concatenated to the result value.
.PP
.SH "BUGS, IDEAS, FEEDBACK"
This document, and the package it describes, will undoubtedly contain
bugs and other problems.
Please report such in the category \fIhtml\fR of the
\fITcllib SF Trackers\fR [http://sourceforge.net/tracker/?group_id=12883].
Please also report any ideas for enhancements you may have for either
package and/or documentation.
.SH "SEE ALSO"
htmlparse, ncgi
.SH KEYWORDS
checkbox, checkbutton, form, html, radiobutton, table