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Topic: Eval

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	Eval - Wikipedia, the free encyclopedia
		In some programming languages, eval is a function which evaluates a string as though it were an expression and returns a result; in others, it executes multiple lines of code as though they had been included instead of the line including the eval.
		Eval is also sometimes used in applications needing to evaluate math expressions, such as spreadsheets.
		Perhaps the best use of eval is in bootstrapping a new language (as with Lisp), and in language tutor programs which allow users to run their own programs in a controlled environment.
	en.wikipedia.org /wiki/Eval (955 words)

	Encyclopedia topic: Eval (Site not responding. Last check: 2007-10-21)
		Eval is also sometimes used in applications needing to evaluate math expressions, such as spreadsheet (A screen-oriented interactive program enabling a user to lay out financial data on the screen) s.
		Perhaps the best use of eval is in bootstrap (A strap that is looped and sewn to the top of a boot for pulling it on) ping a new language (as with Lisp), and in language tutor programs which allow users to run their own programs in a controlled environment.
		However once the eval function had been manually compiled it was used as part of a simple input-interpret-output loop which formed the basis of the first Lisp interpreter.
	www.absoluteastronomy.com /encyclopedia/e/ev/eval.htm (836 words)

	CLHS: Function EVAL (Site not responding. Last check: 2007-10-21)
		The code resulting from the execution of eval references objects that are eql to the corresponding objects in the source code.
		To obtain the current dynamic value of a symbol, use of symbol-value is equivalent (and usually preferable) to use of eval.
		The object that results from this normal argument evaluation becomes the value of the form parameter, and is then evaluated as part of the eval form.
	www.lisp.org /HyperSpec/Body/fun_eval.html (229 words)

	Chemicals Technology - EVAL Production Expansion, Antwerp
		EVAL is used in the food packaging industry and acts as a barrier layer and oxygen scavenger used to produce multi-layer PET.
		A thin barrier layer of EVAL sandwiched between two PET layers is considered to have a gas barrier as good as that of glass bottles.
		EVAL is currently working on tests with several breweries to identify the next move.
	www.chemicals-technology.com /projects/eval (846 words)

	Kuraray - Business Overview - EVAL Company
		EVAL resin is a functional resin offering gas barrier effectiveness that is unrivaled among plastics.
		We are developing new demand, including for EVAL automotive plastic fuel tanks, which prevent leakage of harmful hydrocarbons given off by gasoline.
		Besides its use as a packaging material for such foods as processed meat and fish, EVAL film is also being developed for use in wall coverings, taking advantage of its dirt-resistant properties.
	www.kuraray.co.jp /en/business/eval.html (229 words)

	CLHS: Special Operator EVAL-WHEN (Site not responding. Last check: 2007-10-21)
		The use of eval, compile, and load is deprecated.
		eval-when normally appears as a top level form, but it is meaningful for it to appear as a non-top-level form.
		One example of the use of eval-when is that for the compiler to be able to read a file properly when it uses user-defined reader macros, it is necessary to write
	www.lisp.org /HyperSpec/Body/speope_eval-when.html (681 words)

	TinyFugue: /eval (Site not responding. Last check: 2007-10-21)
		The return value of eval() and /eval is that of the last command in text; the return value of /not is the logical negation of return value of the last command in text.
		By default, eval expands the text as if %{sub} were "full", and echoes it if %{mecho} is not "off".
		Note: calling /eval with arguments from a trigger could be dangerous.
	tf.tcp.com /~hawkeye/tf/help/commands/eval.html (216 words)

	The power of JavaScript's EVAL command: Builder AU: Web Development: Scripting
		EVAL can reduce code and eases interaction with data that is unknown at load time, but there are drawbacks to take into account.
		As EVAL allows you to dynamically create and execute JavaScript, you can use it to reduce the number of lines of code you need to use; you can also use it to create JavaScript to perform activities that would be significantly more difficult without using the command.
		However, EVAL is not always the best approach; sometimes it can be slower depending on what you are asking it to do.
	www.builderau.com.au /webdev/scripting/soa/The_power_of_JavaScript_s_EVAL_command/0,39024692,20283294,00.htm (1357 words)

	eval - catch exceptions or compile code
		The value of the expression (which is itself determined within scalar context) is first parsed, and if there weren't any errors, executed in the context of the current Perl program, so that any variable settings or subroutine and format definitions remain afterwards.
		In both forms, the value returned is the value of the last expression evaluated inside the mini-program; a return statement may be also used, just as with subroutines.
		Note that, because eval() traps otherwise-fatal errors, it is useful for determining whether a particular feature (such as socket() or symlink()) is implemented.
	www.perl.com /doc/manual/html/pod/perlfunc/eval.html (777 words)

	Help: @EVAL
		After all variables and functions have been expanded, it must be composed only of numeric strings and names of functions in Trigonometric and transcendental functions, connected by Arithmetic operators and optionally grouped with parentheses.
		@EVAL permits you to simplify expression by dropping the % percent mark in front of the names of environment variables.
		The effective precision of the result of @EVAL depends on which specific operations were performed on which values.
	www.jpsoft.com /help/f_eval.htm (796 words)

	Macro Language Dictionary : %EVAL
		Because %EVAL does not convert a value containing a period to a number, the operands are evaluated as character operands.
		When %EVAL encounters a value containing a period, it displays an error message about finding a character operand where a numeric operand is required.
		The macro TEST uses %EVAL to increment the value of the macro variable I by 1.
	www.asu.edu /it/fyi/unix/helpdocs/statistics/sas/sasdoc/sashtml/macro/z0208971.htm (512 words)

	eval - perldoc.perl.org
		The value of the expression (which is itself determined within scalar context) is first parsed, and if there weren't any errors, executed in the lexical context of the current Perl program, so that any variable settings or subroutine and format definitions remain afterwards.
		This form is typically used to delay parsing and subsequent execution of the text of EXPR until run time.
		In the second form, the code within the BLOCK is parsed only once--at the same time the code surrounding the eval itself was parsed--and executed within the context of the current Perl program.
	perldoc.perl.org /functions/eval.html (758 words)

	Siteowners - webmaster forums - Noob question...what is "eval"??? (Site not responding. Last check: 2007-10-21)
		In the 4th line of the script, what on earth is that "eval" for and when should I use it.
		I know what the script does, but I have missed somehow what the "eval" deal is. It looks kind of like a method with no object, but it has only been used twice in the entire primer (I'm on primer #25 or something like that) and the script I wrote worked fine without it (loops=tellme).
		Eval() takes the argument between the parenthesis and evaluates it.
	www.siteownersforums.com /archive/index.php/t-3647.html (275 words)

	[Fwd: Eval class] (Site not responding. Last check: 2007-10-21)
		I suggested to the hugs folks that the Eval class be remove from hugs, since that was the Haskell98 decision, and since GHC had already done it.
		I have no strong opinion on the immediate fate of Eval, but it would be nice if GHC and Hugs agreed.
		In the last beta of the new hugs, the Eval class was still there.
	www.dcs.gla.ac.uk /mail-www/glasgow-haskell-bugs/msg01316.html (221 words)

	Eval Language
		The Eval language of SteelBlue was created to facilitate numerical, string, and file manipulation that would otherwise not be possible with just the SteelBlue tags.
		A section of Eval code is either a single statement or a block of statements separated by semicolons (;).
		It should be noted that the Eval interpreter represents all numbers as strings in the environment.
	www.steelblue.com /sb/ProgrammingSteelBlue/eval.html (2934 words)

	Fabulous Adventures In Coding : Eval is Evil, Part One
		The eval method -- which takes a string containing JScript code, compiles it and runs it -- is probably the most powerful and most misused method in JScript.
		The reason we use eval instead of "new Function" is because we need to create the function in the current scope.
		Speaking of "new Function", eval's sibling so to speak, here is an interesting if somewhat extreme example of its use: I was a lead developer for an application that was a mixed thin/fat client - some of the data was maintained locally, thus accessible while offline.
	blogs.msdn.com /ericlippert/archive/2003/11/01/53329.aspx (1063 words)

	Core JavaScript Reference 1.5: 2 Top-Level Properties and Functions
		eval is a top-level function and is not associated with any object.
		The argument of the eval function is a string.
		If the argument of eval is not a string, eval returns the argument unchanged.
	www.webreference.com /javascript/reference/core_ref/toplev.html (1930 words)

	Pocket PC Freeware Downloads (Site not responding. Last check: 2007-10-21)
		Eval is a combined scientific/programmer's calculator with a novel method for entering formulas.
		To install the Pocket PC version of Eval, first establish a connection between your desktop PC and your Pocket PC, then run Eval.exe on your desktop PC and follow the on-screen instructions.
		To install the desktop version of Eval, first unzip the files to a temporary folder and follow the instructions in the readme.txt file.
	home.comcast.net /~jonsachs#StopTime2.0 (4382 words)

	[No title]
		The argument of the eval method is a string.
		If you construct an arithmetic expression as a string, you can use eval to evaluate it at a later time.
		When the second statement is executed, eval will cause these statements to be performed, and it will also evaluate the set of statements and return the value that is assigned to z.
	wp.netscape.com /eng/mozilla/3.0/handbook/javascript/ref_d-e.htm (3371 words)

	CGI freeware: EVAL (Site not responding. Last check: 2007-10-21)
		EVAL is open source software developed by the Utrecht School of Arts, initially designed to perform surveys amongst students regarding quality of courses and educational policy.
		This versatile version of EVAL may be applied in various kinds of polls and inquiries.
		EVAL is written in plain C and designed to run as CGI-executable under UNIX.
	www.hku.nl /~pieter/SOFT/CGI/EVAL.html (885 words)

	Built-In Commands - eval manual page (Site not responding. Last check: 2007-10-21)
		Eval takes one or more arguments, which together comprise a Tcl script containing one or more commands.
		Eval concatenates all its arguments in the same fashion as the concat command, passes the concatenated string to the Tcl interpreter recursively, and returns the result of that evaluation (or any error generated by it).
		Note that the list command quotes sequences of words in such a way that they are not further expanded by the eval command.
	www.tcl.tk /man/tcl8.4/TclCmd/eval.htm (166 words)

	eval man document (Site not responding. Last check: 2007-10-21)
		eval is a shell special built-in command that constructs a command by concatenating the args together, separating each with a space.
		The resulting string is then taken as input to the shell and evaluated in the current environment.
		Otherwise, it is the exit status of the command defined by the arg operands.
	www.research.att.com /~gsf/man/man1/eval.html (101 words)

	EVAL 2.0-ammec (Site not responding. Last check: 2007-10-21)
		EVAL is alleen toegankelijk voor de hieronder genoemde personen (in de groepen testgroep, MA-AMMEC 6, MA AMMEC 7, enqueteurs, admin).
		Bij problemen met EVAL (versie 2.0-ammec) kun je contact opnemen met je enquêteur (Petra Conrad).
		Een overzicht van andere EVAL gebruikers op deze server is te vinden op http://kmt.hku.nl/eval.
	kmt.hku.nl /cgi-bin/eval/ammec/nph-EVAL.cgi (87 words)

	eval (Site not responding. Last check: 2007-10-21)
		-q causes eval to run quietly and don't display any errors in the inner command.
		-f causes eval to ignore the errors inside and continue execution.
		This command may be used to rebind the to a specified window.
	www.kvirc.de /docu/cmd_eval.html (222 words)

	AI group - EVAL (Site not responding. Last check: 2007-10-21)
		The focus of the Evolutionary Computation and Artificial Life (EVAL) group is the simulated emergence and evolution of complex phenomena.
		EVAL simulations are typically based on models from the natural and physical sciences combined with the tools of artificial life (AL) and evolutionary computation (EC), such as cellular automata, genetic algorithms and genetic programming.
		Although the projects in the EVAL group are varied, we are unified by a general interest in the use of bottom-up, individual-based and evolutionary techniques in both the design of efficient systems and tools, and in the investigation of biological phenomena.
	www.idi.ntnu.no /grupper/ai/eval (276 words)

	Dynamic Languages and the EVAL Button (Site not responding. Last check: 2007-10-21)
		They make one tacit assumption which could be called "the EVAL button": the programmer puts in a program, they push a button, and a result comes out.
		Semantically, the EVAL button is the assumption that the language semantics can be summarized by "eval(P)=v".
		I would like to try to give a taste of dynamic programming environments, and I'll show you just how deeply the EVAL button assumption has pervaded various parts of computing.
	www.brics.dk /Juniorklubben/Abstracts/oct-25-04.html (165 words)

	An Eval Function for C# using JScript.NET (JavaScript)
		Once I was faced with a scenario where we needed client specific calculations applied to the results of a SQL query.
		The situation cried out for a “eval” type method where we could just plug values into a custom equation and retrieve a result.
		This eval function is really built for evaluating expressions.
	www.odetocode.com /Code/80.aspx (765 words)

	Xdebug Development List: [xdebug-dev] Bug 0000132: use of eval
		Next in thread: xdebug-dev@lists.xdebug.org: "[xdebug-dev] Bug 0000132: use of eval causes a segmentation fault"
		Maybe reply: xdebug-dev@lists.xdebug.org: "[xdebug-dev] Bug 0000132: use of eval causes a segmentation fault"
		Summary: use of eval causes a segmentation fault
	www.xdebug.org /archives/xdebug-dev/0386.html (223 words)

	Joe Marshall on Rebol 1.0
		Notice that EVAL-1 (what would correspond to EVAL in a Lisp or Scheme interpreter) takes two continuations rather than the usual one.
		One continuation is invoked in the case where `more' of the sequence needs to be processed, the other in the case that the sequence is `all used up'.
		When all continuations are off the stack, we can then do a longjmp and restart the eval.
	ll1.ai.mit.edu /marshall.html (1938 words)

	eval
		eval -- Evaluate a string as PHP code
		Among other things, this can be useful for storing code in a database text field for later execution.
		This is a $string with my $name in it.
	jamesthornton.com /php/english/function.eval.html (176 words)

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