1Makefile::AST(3)      User Contributed Perl Documentation     Makefile::AST(3)
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NAME

6       Makefile::AST - AST for (GNU) makefiles
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DESCRIPTION

9       The structure of this (GNU) makefile AST is designed based on GNU
10       make's data base listing output produced by "--print-data-base".
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12       This AST library provides the following classes:
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14       Makefile::AST
15           The primary class for ASTs. Provides interface for node adding and
16           querying, such as "add_implicit_rule", "apply_implicit_rules",
17           "add_explicit_rule", "apply_explicit_rules", "add_var",
18           "add_auto_var", "get_var", as well as lots of other utility
19           functions, like method "eval_var_value" for computing the ultimate
20           values of makefile variables, method "enter_pad" and "leave_pad"
21           for local variable's scoping pad.
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23       Makefile::AST::Rule::Base
24           This is the base class for the rule nodes in the AST. It has
25           properties like "normal_prereqs", "order_prereqs", "commands", and
26           "colon".
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28       Makefile::AST::Rule
29           This class represents the de-sugared form of simple rules and
30           implicite rules after application. It inherits from
31           Makefile::AST::Rule::Base, and adds new properties "target" and
32           "other_targets".
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34       Makefile::AST::Rule::Implicit
35           This class represents the implicit rule nodes in the AST. It
36           inherits from Makefile::AST::Rule::Base, and adds new properties
37           "targets", "match_anything", and "is_terminal".
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39       Makefile::AST::StemMatch
40           This class encapsulates the file pattern matching (file names
41           containing "%") and stem substitution algorithms.
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43       Makefile::AST::Variable
44           It represents the makefile variable nodes in the AST, including
45           "name", "value", "flavor", and "origin".
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47       Makefile::AST::Command
48           Used to encapsulate information regarding makefile rule commands
49           (e.g. command body, command modifiers "@", "-", "+", and etc.) as a
50           whole.
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LIMITATIONS AND TODO

53       Adding support for other flavors' makes into this AST libary should
54       make a huge amount of sense. The most interesting candiate is
55       Microsoft's NMAKE.
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SVN REPOSITORY

58       For the very latest version of this script, check out the source from
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60       http://svn.openfoundry.org/makefileparser/branches/gmake-db
61       <http://svn.openfoundry.org/makefileparser/branches/gmake-db>.
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63       There is anonymous access to all.
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AUTHOR

66       Agent Zhang "<agentzh@yahoo.cn>"
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69       Copyright (c) 2007-2008 by Agent Zhang (agentzh).
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71       This library is free software; you can redistribute it and/or modify it
72       under the same terms as Perl itself.
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SEE ALSO

75       Makefile::AST::Evaluator, Makefile::Parser::GmakeDB, makesimple,
76       pgmake-db, Makefile::DOM.
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80perl v5.12.0                      2008-03-16                  Makefile::AST(3)
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