1doctools::idx::export::text(n)Documentation toolsdoctools::idx::export::text(n)
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8 doctools::idx::export::text - plain text export plugin
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11 package require Tcl 8.4
12 package require doctools::idx::export::text ?0.2?
14 package require doctools::text
16 export serial configuration
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22 This package implements the doctools keyword index export plugin for
23 the generation of plain text markup.
24 This is an internal package of doctools, for use by the higher level
26 management packages handling keyword indices, especially doc‐
27 tools::idx::export, the export manager.
28 Using it from a regular interpreter is possible, however only with con‐
30 tortions, and is not recommended. The proper way to use this function‐
31 ality is through the package doctools::idx::export and the export man‐
32 ager objects it provides.
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35 The API provided by this package satisfies the specification of the do‐
36 cidx export plugin API version 2.
37 export serial configuration
39 This command takes the canonical serialization of a keyword in‐
40 dex, as specified in section Keyword index serialization format,
41 and contained in serial, the configuration, a dictionary, and
42 generates plain text markup encoding the index. The created
43 string is then returned as the result of the command.
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46 The text export plugin recognizes the following configuration variables
47 and changes its behaviour as they specify.
48 dictionary map
50 This standard configuration variable contains a dictionary map‐
51 ping from the symbolic files names in manpage references to the
52 actual filenames and/or urls to be used in the output.
53 Url references and symbolic file names without a mapping are
55 used unchanged.
56 Note that this plugin ignores the standard configuration variables
58 user, file, and format, and their values.
59
61 Here we specify the format used by the doctools v2 packages to serial‐
62 ize keyword indices as immutable values for transport, comparison, etc.
63 We distinguish between regular and canonical serializations. While a
65 keyword index may have more than one regular serialization only exactly
66 one of them will be canonical.
67 regular serialization
69 [1] An index serialization is a nested Tcl dictionary.
71 [2] This dictionary holds a single key, doctools::idx, and
73 its value. This value holds the contents of the index.
74 [3] The contents of the index are a Tcl dictionary holding
76 the title of the index, a label, and the keywords and
77 references. The relevant keys and their values are
78 title The value is a string containing the title of the
80 index.
81 label The value is a string containing a label for the
83 index.
84 keywords
86 The value is a Tcl dictionary, using the keywords
87 known to the index as keys. The associated values
88 are lists containing the identifiers of the refer‐
89 ences associated with that particular keyword.
90 Any reference identifier used in these lists has
92 to exist as a key in the references dictionary,
93 see the next item for its definition.
94 references
96 The value is a Tcl dictionary, using the identi‐
97 fiers for the references known to the index as
98 keys. The associated values are 2-element lists
99 containing the type and label of the reference, in
100 this order.
101 Any key here has to be associated with at least
103 one keyword, i.e. occur in at least one of the
104 reference lists which are the values in the key‐
105 words dictionary, see previous item for its defi‐
106 nition.
107 [4] The type of a reference can be one of two values,
109 manpage
111 The identifier of the reference is interpreted as
112 symbolic file name, referring to one of the docu‐
113 ments the index was made for.
114 url The identifier of the reference is interpreted as
116 an url, referring to some external location, like
117 a website, etc.
118 canonical serialization
120 The canonical serialization of a keyword index has the format as
121 specified in the previous item, and then additionally satisfies
122 the constraints below, which make it unique among all the possi‐
123 ble serializations of the keyword index.
124 [1] The keys found in all the nested Tcl dictionaries are
126 sorted in ascending dictionary order, as generated by
127 Tcl's builtin command lsort -increasing -dict.
128 [2] The references listed for each keyword of the index, if
130 any, are listed in ascending dictionary order of their
131 labels, as generated by Tcl's builtin command lsort -in‐
132 creasing -dict.
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135 This document, and the package it describes, will undoubtedly contain
136 bugs and other problems. Please report such in the category doctools
137 of the Tcllib Trackers [http://core.tcl.tk/tcllib/reportlist]. Please
138 also report any ideas for enhancements you may have for either package
139 and/or documentation.
140 When proposing code changes, please provide unified diffs, i.e the out‐
142 put of diff -u.
143 Note further that attachments are strongly preferred over inlined
145 patches. Attachments can be made by going to the Edit form of the
146 ticket immediately after its creation, and then using the left-most
147 button in the secondary navigation bar.
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150 doctools, export, index, plain text, serialization
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153 Text formatter plugin
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156 Copyright (c) 2009-2019 Andreas Kupries <andreas_kupries@users.sourceforge.net>
157tcllib 0.2 doctools::idx::export::text(n)