1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
[comment {-*- tcl -*- --- !doctools ---}]
[manpage_begin pt::peg::import::[vset PACKAGE] n [vset VERSION]]
[include ../module.inc]
[include ../keywords_import.inc]
[titledesc "PEG Import Plugin. Read [vset NAME] format"]
[require pt::peg::import::[vset PACKAGE] [opt [vset VERSION]]]
[require pt::peg::to::[vset PACKAGE]]
[description]
[include ../ref_intro.inc]
This package implements the parsing expression grammar import plugin
processing [vset NAME] markup.
[para]
It resides in the Import section of the Core Layer of Parser Tools and
is intended to be used by [package pt::peg::import], the import
manager, sitting between it and the corresponding core conversion
functionality provided by [package pt::peg::from::[vset PACKAGE]].
[para][image arch_core_iplugins][para]
[para]
While the direct use of this package with a regular interpreter is
possible, this is strongly disrecommended and requires a number of
contortions to provide the expected environment.
The proper way to use this functionality depends on the situation:
[list_begin enumerated]
[enum]
In an untrusted environment the proper access is through the package
[package pt::peg::import] and the import manager objects it
provides.
[enum]
In a trusted environment however simply use the package
[package pt::peg::from::[vset PACKAGE]] and access the core
conversion functionality directly.
[list_end]
[section API]
The API provided by this package satisfies the specification of the
Plugin API found in the [manpage {Parser Tools Import API}]
specification.
[list_begin definitions]
[call [cmd import] [arg text]]
This command takes the [vset NAME] markup encoding a parsing
expression grammar and contained in [arg text], and generates the
canonical serialization of said grammar, as specified in section
[sectref {PEG serialization format}].
The created value is then returned as the result of the command.
[list_end]
[include ../format/[vset PACKAGE].inc]
[include ../serial/pegrammar.inc]
[include ../serial/pexpression.inc]
[include ../feedback.inc]
[manpage_end]
|
