NAME¶
doctools::idx::export::html - HTML export plugin
SYNOPSIS¶
package require
Tcl 8.4
package require
doctools::idx::export::html ?0.2?
package require
doctools::text
package require
doctools::html
package require
doctools::html::cssdefaults
export serial configuration
DESCRIPTION¶
This package implements the doctools keyword index export plugin for the
generation of HTML markup.
This is an internal package of doctools, for use by the higher level management
packages handling keyword indices, especially
doctools::idx::export,
the export manager.
Using it from a regular interpreter is possible, however only with contortions,
and is not recommended. The proper way to use this functionality is through
the package
doctools::idx::export and the export manager objects it
provides.
API¶
The API provided by this package satisfies the specification of the docidx
export plugin API version 2.
- export serial configuration
- This command takes the canonical serialization of a keyword index, as
specified in section Keyword index serialization format, and
contained in serial, the configuration, a dictionary, and
generates HTML markup encoding the index. The created string is then
returned as the result of the command.
CONFIGURATION¶
The html export plugin recognizes the following configuration variables and
changes its behaviour as they specify.
- string user
- This standard configuration variable contains the name of the user running
the process which invoked the export plugin. The plugin puts this
information into the provenance comment at the beginning of the generated
document.
- string file
- This standard configuration variable contains the name of the file the
index came from. This variable may not be set or contain the empty string.
The plugin puts this information, if defined, i.e. set and not the empty
string, into the provenance comment at the beginning of the generated
document.
- dictionary map
- This standard configuration variable contains a dictionary mapping from
the symbolic files names in manpage references to the actual filenames
and/or urls to be used in the output.
Url references and symbolic file names without a mapping are used
unchanged.
- boolean newlines
- If this flag is set the plugin will break the generated html code across
lines, with each markup command on a separate line.
If this flag is not set (the default), the whole document will be written on
a single line, with minimum spacing between all elements.
- boolean indented
- If this flag is set the plugin will indent the markup commands according
to the structure of indices. To make this work this also implies that
newlines is set.
If this flag is not set (the default), the output is formatted as per the
value of newlines, and no indenting is done.
- string meta
- This variable is meant to hold a fragment of HTML (default: empty). The
fragment it contains will be inserted into the generated output in the
<head> section of the document, just after the <title>
tag.
- string header
- This variable is meant to hold a fragment of HTML (default: empty). The
fragment it contains will be inserted into the generated output just after
the <h1> title tag in the body of the document, in the class.header
<div>'ision.
- string footer
- This variable is meant to hold a fragment of HTML (default: empty). The
fragment it contains will be inserted into the generated output just
before the </body> tag, in the class.footer <div>'ision.
- dictionary kwid
- The value of this variable (default: empty) maps keywords to the
identifiers to use as their anchor names. Each keyword FOO not
found in the dictionary uses KW-FOO as anchor, i.e. itself
prefixed with the string KW-.
- string sepline
- The value of this variable is the string to use for the separator comments
inserted into the output when the outpout is broken across lines and/or
indented. The default string consists of 60 dashes.
- integer kwidth
- This variable holds the size of the keyword column in the main table
generated by the plugin, in percent of the total width of the table. This
is an integer number in the range of 1 to 99. Choosing a value outside of
that range causes the generator to switch back to the defauly setting, 35
percent.
- string dot
- This variable contains a HTML fragment inserted between the entries of the
navigation bar, and the references associated with each keyword. The
default is the HTML entity · i.e. the bullet character, also
known as the "Greek middle dot", i.e. the unicode character
00B7.
- string class.main
- This variable contains the class name for the main <div>'ivision of
the generated document. The default is doctools.
- string class.header
- This variable contains the class name for the header <div>'ision of
the generated document. The default is idx-header. This division
contains the document title, the user specified header, if any, a
visible separator line, and the navigation bar for quick access to each
keyword section.
- string class.title
- This variable contains the class name for the <h1> tag enclosing the
document title. The default is idx-title.
- string class.navsep
- This variable contains the class name for the <hr> separators in the
header and footer sections of the generated document. The default is
idx-navsep.
- string class.navbar
- This variable contains the class name for the navigation <div>'ision
enclosing the navigation bar of the generated document. The default is
idx-kwnav.
- string class.contents
- This variable contains the class name for the <table> holding the
keywords and their references in the generated document. The default is
idx-contents.
- string class.leader
- This variable contains the class name for the anchor names the plugin
inserts into the keyword table when switching from one section to the next
(Each section holds all keywords with a particular first character). The
default is idx-leader.
- string class.row0
- This variable contains the class name used to label the even rows
(<tr>) of the keyword table. The default is idx-even.
- string class.row1
- This variable contains the class name used to label the odd rows
(<tr>) of the keyword table. The default is idx-odd.
- string class.keyword
- This variable contains the class name used to label the keyword
cells/column (<td>) in the keyword table of the document. The
default is idx-keyword.
- string class.refs
- This variable contains the class name used to label the reference
cells/column (<td>) in the keyword table of the document. The
default is idx-refs.
- string class.footer
- This variable contains the class name for the footer <div>'ision of
the generated document. The default is idx-footer. This division
contains a browser-visible separator line and the user specified
footer, if any.
Note that this plugin ignores the standard configuration variable
format, and its value.
Here we specify the format used by the doctools v2 packages to serialize keyword
indices as immutable values for transport, comparison, etc.
We distinguish between
regular and
canonical serializations. While
a keyword index may have more than one regular serialization only exactly one
of them will be
canonical.
- regular serialization
- [1]
- An index serialization is a nested Tcl dictionary.
- [2]
- This dictionary holds a single key, doctools::idx, and its value.
This value holds the contents of the index.
- [3]
- The contents of the index are a Tcl dictionary holding the title of the
index, a label, and the keywords and references. The relevant keys and
their values are
- title
- The value is a string containing the title of the index.
- label
- The value is a string containing a label for the index.
- keywords
- The value is a Tcl dictionary, using the keywords known to the index as
keys. The associated values are lists containing the identifiers of the
references associated with that particular keyword.
Any reference identifier used in these lists has to exist as a key in the
references dictionary, see the next item for its definition.
- references
- The value is a Tcl dictionary, using the identifiers for the references
known to the index as keys. The associated values are 2-element lists
containing the type and label of the reference, in this order.
Any key here has to be associated with at least one keyword, i.e. occur in
at least one of the reference lists which are the values in the
keywords dictionary, see previous item for its definition.
- [4]
- The type of a reference can be one of two values,
- manpage
- The identifier of the reference is interpreted as symbolic file name,
refering to one of the documents the index was made for.
- url
- The identifier of the reference is interpreted as an url, refering to some
external location, like a website, etc.
- canonical serialization
- The canonical serialization of a keyword index has the format as specified
in the previous item, and then additionally satisfies the constraints
below, which make it unique among all the possible serializations of the
keyword index.
- [1]
- The keys found in all the nested Tcl dictionaries are sorted in ascending
dictionary order, as generated by Tcl's builtin command lsort
-increasing -dict.
- [2]
- The references listed for each keyword of the index, if any, are listed in
ascending dictionary order of their labels, as generated by Tcl's
builtin command lsort -increasing -dict.
BUGS, IDEAS, FEEDBACK¶
This document, and the package it describes, will undoubtedly contain bugs and
other problems. Please report such in the category
doctools of the
Tcllib Trackers [
http://core.tcl.tk/tcllib/reportlist]. Please also
report any ideas for enhancements you may have for either package and/or
documentation.
KEYWORDS¶
HTML, doctools, export, index, serialization
CATEGORY¶
Text formatter plugin
COPYRIGHT¶
Copyright (c) 2009 Andreas Kupries <andreas_kupries@users.sourceforge.net>