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Topic: Abstract syntax tree

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	Abstract Syntax Tree
		The representation of SourceCode as a tree of nodes representing constants or variables (leaves) and operators or statements (inner nodes).
		And, a "syntax tree" is often not a "pure" tree because leaves may reference the same information, such as the same function name or variable name.
		The AST is (typically) the output of a parse phase; and it is structured as a tree.
	c2.com /cgi/wiki?AbstractSyntaxTree (864 words)

	Abstract syntax tree - Wikipedia, the free encyclopedia
		In computer science, an abstract syntax tree (AST) is a finite, labeled, directed tree, where the internal nodes are labeled by operators, and the leaf nodes represent the operands of the node operators.
		The range of all possible such structures is described by the abstract syntax.
		Creating an AST in a parser for a language described by a context free grammar, as nearly all programming languages are, is straightforward.
	en.wikipedia.org /wiki/Abstract_syntax_tree (318 words)

	Abstract Syntax Tree
		The Abstract Syntax Tree is the base framework for many powerful tools of the Eclipse IDE, including refactoring, Quick Fix and Quick Assist.
		The Abstract Syntax Tree maps plain Java source code in a tree form.
		This tree is more convenient and reliable to analyse and modify programmatically than text-based source.
	www.eclipse.org /resources/resource.php?id=260 (66 words)

	Eclipse Corner Articles
		As mentioned, the Abstract Syntax Tree is the way that Eclipse looks at your source code: every Java source file is entirely represented as tree of AST nodes.
		To discover how code is represented as AST, the AST Viewer plug-in [5] is a big help: Once installed you can simply mark source code in the editor and let it be displayed in a tree form in the AST Viewer view.
		AST nodes cannot be re-parented, once connected to an AST, they cannot be attached to a different place of the tree.
	www.eclipse.org /articles/article.php?file=Article-JavaCodeManipulation_AST/index.html (3229 words)

	Abstract Syntax Tree Optimizations - GNU Project - Free Software Foundation (FSF)
		The trees, (or formally abstract syntax trees - ASTs) are generated during parsing, and are close to the source language semantics.
		With the AST for complete functions, and the additional semantic information they contain, the opportunity for new optimizations presents itself.
		The first AST inliner was top down, and exhibits problematic compiler time and memory usage at -O3.
	gcc.gnu.org /projects/ast-optimizer.html (641 words)

	Abstract Syntax Notation 1 - Computing Reference - eLook.org
		Abstract Syntax Notation 1 - Computing Reference - eLook.org
		ASN.1 defines the abstract syntax of information but does not restrict the way the information is encoded.
		Various ASN.1 encoding rules provide the transfer syntax (a concrete representation) of the data values whose abstract syntax is described in ASN.1.
	www.elook.org /computing/abstract-syntax-notation-1.htm (207 words)

	Abstract Syntax Tree
		It would be better if each new operation could be added separately, and the syntax node classes were independent of the operation that applies to them.
		, and passing it to elements of AST as it is traversed.
		The HPJava AST consists of 128 syntax nodes.
	www.hpjava.org /theses/hkl/dissertation/dissertation/node38.html (290 words)

	XML (Site not responding. Last check: 2007-10-26)
		XML syntax is fairly verbose and partially redundant.
		A newer XML schema language, described by the W3C as the successor of DTDs, is simply called XML Schema, also referred to as XML Schema Definition (XSD).
		The compact syntax aims to increase readability and writability, but since there is a well-defined way to translate compact syntax to the XML syntax and back again the advantage of using standard XML tools is not lost.
	www.freedownloadsoft.com /info/xml.html (2115 words)

	Catalogs of Java and .NET Components at TopCoder Software
		The Abstract Syntax Tree (AST) component will be used to hold a representation of a particular program.
		The parser will build an AST structure, and the validator, interpreter, compiler, etc. will use the tree as input to complete its task.
		The AST Object is then passed to the interpreter for execution.
	software.topcoder.com /catalog/c_component.jsp?comp=23128065&ver=1 (253 words)

	Abstract syntax tree
		LIDO is a specification language for abstract syntax trees.
		LIDO requires that every type be represented by an identifier.
		Thus it is not possible to use the type
	ece-www.colorado.edu /~ecen4553/Reference/abstr/straight/node21.html (133 words)

	Understanding Source Code Evolution Using Abstract Syntax Tree Matching
		We present a tool for quickly comparing the source code of different versions of a C program.
		The approach is based on partial abstract syntax tree matching, and can track simple changes to global variables, types and functions.
		We report results based on measurements of various versions of popular open source programs, including BIND, OpenSSH, Apache, Vsftpd and the Linux kernel.
	www.cs.umd.edu /~jfoster/papers/msr05.html (146 words)

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