1doctools::idx(n) Documentation tools doctools::idx(n)
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6
8 doctools::idx - docidx - Processing indices
9
11 package require Tcl 8.2
12 package require doctools::idx ?1?
14 ::doctools::idx::new objectName ?-option value ...?
16 ::doctools::idx::help
18 ::doctools::idx::search path
20 objectName method ?arg arg ...?
22 objectName configure
24 objectName configure option
26 objectName configure -option value...
28 objectName cget -option
30 objectName destroy
32 objectName format text
34 objectName map symbolic actual
36 objectName parameters
38 objectName search path
40 objectName setparam name value
42 objectName warnings
44_________________________________________________________________
46
48 This package provides a class for the creation of objects able to
49 process and convert text written in the docidx markup language into any
50 output format X for which a formatting engine is available.
51 A reader interested in the markup language itself should start with the
53 docidx language introduction and proceed from there to the formal spec‐
54 ifications, i.e. the docidx language syntax and the docidx language
55 command reference.
56 If on the other hand the reader wishes to write her own formatting
58 engine for some format, i.e. is a plugin writer then reading and under‐
59 standing the docidx plugin API reference is an absolute necessity, as
60 that document specifies the interaction between this package and its
61 plugins, i.e. the formatting engines, in detail.
62
64 PACKAGE COMMANDS
65 ::doctools::idx::new objectName ?-option value ...?
66 This command creates a new docidx object with an associated Tcl
67 command whose name is objectName. This object command is
68 explained in full detail in the sections OBJECT COMMAND and
69 OBJECT METHODS. The object command will be created under the
70 current namespace if the objectName is not fully qualified, and
71 in the specified namespace otherwise.
72 The options and their values coming after the name of the object
74 are used to set the initial configuration of the object.
75 ::doctools::idx::help
77 This is a convenience command for applications wishing to pro‐
78 vide their user with a short description of the available for‐
79 matting commands and their meanings. It returns a string con‐
80 taining a standard help text.
81 ::doctools::idx::search path
83 Whenever an object created by this the package has to map the
84 name of a format to the file containing the code for its format‐
85 ting engine it will search for the file in a number of directo‐
86 ries stored in a list. See section FORMAT MAPPING for more
87 explanations.
88 This list not only contains three default directories which are
90 declared by the package itself, but is also extensible user of
91 the package. This command is the means to do so. When given a
92 path to an existing and readable directory it will prepend that
93 directory to the list of directories to search. This means that
94 the path added last is later searched through first.
95 An error will be thrown if the path either does not exist, is
97 not a directory, or is not readable.
98 OBJECT COMMAND
100 All commands created by ::doctools::idx::new have the following general
101 form and may be used to invoke various operations on their docidx con‐
102 verter object.
103 objectName method ?arg arg ...?
105 The method method and its arg'uments determine the exact behav‐
106 ior of the command. See section OBJECT METHODS for the detailed
107 specifications.
108 OBJECT METHODS
110 objectName configure
111 The method returns a list of all known options and their current
112 values when called without any arguments.
113 objectName configure option
115 The method behaves like the method cget when called with a sin‐
116 gle argument and returns the value of the option specified by
117 said argument.
118 objectName configure -option value...
120 The method reconfigures the specified options of the object,
121 setting them to the associated values, when called with an even
122 number of arguments, at least two.
123 The legal options are described in the section OBJECT CONFIGURA‐
125 TION.
126 objectName cget -option
128 This method expects a legal configuration option as argument and
129 will return the current value of that option for the object the
130 method was invoked for.
131 The legal configuration options are described in section OBJECT
133 CONFIGURATION.
134 objectName destroy
136 This method destroys the object it is invoked for.
137 objectName format text
139 This method runs the text through the configured formatting
140 engine and returns the generated string as its result. An error
141 will be thrown if no -format was configured for the object.
142 The method assumes that the text is in docidx format as speci‐
144 fied in the companion document docidx_fmt. Errors will be thrown
145 otherwise.
146 objectName map symbolic actual
148 This methods add one entry to the per-object mapping from sym‐
149 bolic filenames to the actual uris. The object just stores this
150 mapping and makes it available to the configured formatting
151 engine through the command dt_fmap. This command is described
152 in more detail in the docidx plugin API reference which speci‐
153 fies the interaction between the objects created by this package
154 and index formatting engines.
155 objectName parameters
157 This method returns a list containing the names of all engine
158 parameters provided by the configured formatting engine. It will
159 return an empty list if the object is not yet configured for a
160 specific format.
161 objectName search path
163 This method extends the per-object list of paths searched for
164 index formatting engines. See also the command ::doc‐
165 tools::idx::search on how to extend the per-package list of
166 paths. Note that the path entered last will be searched first.
167 For more details see section FORMAT MAPPING.
168 objectName setparam name value
170 This method sets the named engine parameter to the specified
171 value. It will throw an error if the object is either not yet
172 configured for a specific format, or if the formatting engine
173 for the configured format does not provide a parameter with the
174 given name. The list of parameters provided by the configured
175 formatting engine can be retrieved through the method parame‐
176 ters.
177 objectName warnings
179 This method returns a list containing all the warnings which
180 were generated by the configured formatting engine during the
181 last invocation of the method format.
182 OBJECT CONFIGURATION
184 All docidx objects understand the following configuration options:
185 -file file
187 The argument of this option is stored in the object and made
188 available to the configured formatting engine through the com‐
189 mand dt_file. This command is described in more detail in the
190 companion document docidx_api which specifies the API between
191 the object and formatting engines.
192 The default value of this option is the empty string.
194 The configured formatting engine should interpret the value as
196 the name of the file containing the document which is currently
197 processed.
198 -format text
200 The argument of this option specifies the format to generate and
201 by implication the formatting engine to use when converting text
202 via the method format. Its default value is the empty string.
203 The method format cannot be used if this option is not set to a
204 valid value at least once.
205 The package will immediately try to map the given name to a file
207 containing the code for a formatting engine generating that for‐
208 mat. An error will be thrown if this mapping fails. In that case
209 a previously configured format is left untouched.
210 The section FORMAT MAPPING explains in detail how the package
212 and object will look for engine implementations.
213 FORMAT MAPPING
215 The package and object will perform the following algorithm when trying
216 to map a format name foo to a file containing an implementation of a
217 formatting engine for foo:
218 [1] If foo is the name of an existing file then this file is
220 directly taken as the implementation.
221 [2] If not, the list of per-object search paths is searched. For
223 each directory in the list the package checks if that directory
224 contains a file "idx.foo". If yes, then that file is taken as
225 the implementation.
226 Note that this list of paths is initially empty and can be
228 extended through the object method search.
229 [3] If not, the list of package paths is searched. For each direc‐
231 tory in the list the package checks if that directory contains a
232 file "idx.foo". If yes, then that file is taken as the implemen‐
233 tation.
234 This list of paths can be extended through the command ::doc‐
236 tools::idx::search. It contains initially one path, the subdi‐
237 rectory "mpformats" of the directory the package itself is
238 located in. In other words, if the package implementation
239 "docidx.tcl" is installed in the directory
240 "/usr/local/lib/tcllib/doctools" then it will by default search
241 the directory "/usr/local/lib/tcllib/doctools/mpformats" for
242 format implementations.
243 [4] The mapping fails.
245
247 The package provides predefined formatting engines for the following
248 formats. Some of the formatting engines support engine parameters.
249 These will be explicitly highlighted.
250 html This engine generates HTML markup, for processing by web
252 browsers and the like. This engine supports three parameters:
253 footer The value for this parameter has to be valid selfcon‐
255 tained HTML markup for the body section of a HTML docu‐
256 ment. The default value is the empty string. The value is
257 inserted into the generated output just before the
258 </body> tag, closing the body of the generated HTML.
259 This can be used to insert boilerplate footer markup into
261 the generated document.
262 header The value for this parameter has to be valid selfcon‐
264 tained HTML markup for the body section of a HTML docu‐
265 ment. The default value is the empty string. The value is
266 inserted into the generated output just after the <body>
267 tag, starting the body of the generated HTML.
268 This can be used to insert boilerplate header markup into
270 the generated document.
271 meta The value for this parameter has to be valid selfcon‐
273 tained HTML markup for the header section of a HTML docu‐
274 ment. The default value is the empty string. The value is
275 inserted into the generated output just after the <head>
276 tag, starting the header section of the generated HTML.
277 This can be used to insert boilerplate meta data markup
279 into the generated document, like references to a
280 stylesheet, standard meta keywords, etc.
281 latex This engine generates output suitable for the latex text proces‐
284 sor coming out of the TeX world.
285 list This engine retrieves version, section and title of the manpage
287 from the document. As such it can be used to generate a direc‐
288 tory listing for a set of manpages.
289 nroff This engine generates nroff output, for processing by nroff, or
291 groff. The result will be standard man pages as they are known
292 in the unix world.
293 null This engine generates no outout at all. This can be used if one
295 just wants to validate some input.
296 tmml This engine generates TMML markup as specified by Joe English.
298 The Tcl Manpage Markup Language is a derivate of XML.
299 wiki This engine generates Wiki markup as understood by Jean Claude
301 Wippler's wikit application.
302
304 This document, and the package it describes, will undoubtedly contain
305 bugs and other problems. Please report such in the category doctools
306 of the Tcllib SF Trackers [http://source‐
307 forge.net/tracker/?group_id=12883]. Please also report any ideas for
308 enhancements you may have for either package and/or documentation.
309
311 docidx_intro, docidx_lang_cmdref, docidx_lang_intro, docidx_lang_syn‐
312 tax, docidx_plugin_apiref
313
315 HTML, TMML, conversion, docidx, documentation, index, keyword index,
316 latex, manpage, markup, nroff, wiki
317
319 Copyright (c) 2003-2008 Andreas Kupries <andreas_kupries@users.sourceforge.net>
320doctools 1 doctools::idx(n)