1doctools::idx::export::nroff(n)Documentation tooldsoctools::idx::export::nroff(n)
2______________________________________________________________________________
6
8 doctools::idx::export::nroff - nroff export plugin
9
11 package require Tcl 8.4
12 package require doctools::idx::export::nroff ?0.3?
14 package require doctools::text
16 package require doctools::nroff::man_macros
18 export serial configuration
20______________________________________________________________________________
22
24 This package implements the doctools keyword index export plugin for
25 the generation of nroff markup.
26 This is an internal package of doctools, for use by the higher level
28 management packages handling keyword indices, especially doc‐
29 tools::idx::export, the export manager.
30 Using it from a regular interpreter is possible, however only with con‐
32 tortions, and is not recommended. The proper way to use this function‐
33 ality is through the package doctools::idx::export and the export man‐
34 ager objects it provides.
35
37 The API provided by this package satisfies the specification of the do‐
38 cidx export plugin API version 2.
39 export serial configuration
41 This command takes the canonical serialization of a keyword in‐
42 dex, as specified in section Keyword index serialization format,
43 and contained in serial, the configuration, a dictionary, and
44 generates nroff markup encoding the index. The created string
45 is then returned as the result of the command.
46
48 The nroff export plugin recognizes the following configuration vari‐
49 ables and changes its behaviour as they specify.
50 string user
52 This standard configuration variable contains the name of the
53 user running the process which invoked the export plugin. The
54 plugin puts this information into the provenance comment at the
55 beginning of the generated document.
56 string file
58 This standard configuration variable contains the name of the
59 file the index came from. This variable may not be set or con‐
60 tain the empty string. The plugin puts this information, if de‐
61 fined, i.e. set and not the empty string, into the provenance
62 comment at the beginning of the generated document.
63 boolean inline
65 If this flag is set (default) the plugin will place the defini‐
66 tions of the man macro set directly into the output.
67 If this flag is not set, the plugin will place a reference to
69 the definitions of the man macro set into the output, but not
70 the macro definitions themselves.
71 Note that this plugin ignores the standard configuration variables for‐
73 mat, and map, and their values.
74
76 Here we specify the format used by the doctools v2 packages to serial‐
77 ize keyword indices as immutable values for transport, comparison, etc.
78 We distinguish between regular and canonical serializations. While a
80 keyword index may have more than one regular serialization only exactly
81 one of them will be canonical.
82 regular serialization
84 [1] An index serialization is a nested Tcl dictionary.
86 [2] This dictionary holds a single key, doctools::idx, and
88 its value. This value holds the contents of the index.
89 [3] The contents of the index are a Tcl dictionary holding
91 the title of the index, a label, and the keywords and
92 references. The relevant keys and their values are
93 title The value is a string containing the title of the
95 index.
96 label The value is a string containing a label for the
98 index.
99 keywords
101 The value is a Tcl dictionary, using the keywords
102 known to the index as keys. The associated values
103 are lists containing the identifiers of the refer‐
104 ences associated with that particular keyword.
105 Any reference identifier used in these lists has
107 to exist as a key in the references dictionary,
108 see the next item for its definition.
109 references
111 The value is a Tcl dictionary, using the identi‐
112 fiers for the references known to the index as
113 keys. The associated values are 2-element lists
114 containing the type and label of the reference, in
115 this order.
116 Any key here has to be associated with at least
118 one keyword, i.e. occur in at least one of the
119 reference lists which are the values in the key‐
120 words dictionary, see previous item for its defi‐
121 nition.
122 [4] The type of a reference can be one of two values,
124 manpage
126 The identifier of the reference is interpreted as
127 symbolic file name, referring to one of the docu‐
128 ments the index was made for.
129 url The identifier of the reference is interpreted as
131 an url, referring to some external location, like
132 a website, etc.
133 canonical serialization
135 The canonical serialization of a keyword index has the format as
136 specified in the previous item, and then additionally satisfies
137 the constraints below, which make it unique among all the possi‐
138 ble serializations of the keyword index.
139 [1] The keys found in all the nested Tcl dictionaries are
141 sorted in ascending dictionary order, as generated by
142 Tcl's builtin command lsort -increasing -dict.
143 [2] The references listed for each keyword of the index, if
145 any, are listed in ascending dictionary order of their
146 labels, as generated by Tcl's builtin command lsort -in‐
147 creasing -dict.
148
150 This document, and the package it describes, will undoubtedly contain
151 bugs and other problems. Please report such in the category doctools
152 of the Tcllib Trackers [http://core.tcl.tk/tcllib/reportlist]. Please
153 also report any ideas for enhancements you may have for either package
154 and/or documentation.
155 When proposing code changes, please provide unified diffs, i.e the out‐
157 put of diff -u.
158 Note further that attachments are strongly preferred over inlined
160 patches. Attachments can be made by going to the Edit form of the
161 ticket immediately after its creation, and then using the left-most
162 button in the secondary navigation bar.
163
165 doctools, export, index, nroff, serialization
166
168 Text formatter plugin
169
171 Copyright (c) 2009-2019 Andreas Kupries <andreas_kupries@users.sourceforge.net>
172tcllib 0.3 doctools::idx::export::nroff(n)