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Topic: COMEFROM

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	COMEFROM - Wikipedia, the free encyclopedia
		COMEFROM is roughly the opposite of GOTO in that it can take the execution state from any arbitrary point in code to a COMEFROM statement.
		Depending on the language used, multiple COMEFROMs referencing the same departure point may be invalid, be non-deterministic, be executed in some sort of defined priority, or even induce parallel or otherwise concurrent execution as seen in Threaded Intercal.
		COMEFROM was initially seen in lists of joke assembly language instructions (as 'CMFRM') and was elaborated upon in a Datamation article by R.
	en.wikipedia.org /wiki/COMEFROM (397 words)

	History of the Comefrom statement (Site not responding. Last check: 2007-11-03)
		It is very regrettable that the comefrom statement is so rarely used; indeed, the fact that it is implemented in many high-level languages would come as a surprise to many programmers.
		Essentially what happens when a COMEFROM is executed is that the address of the statement or compound statement containing the COMEFROM is entered into the comefrom table at the position for the stated label.
		This mechanism was more flexible that the comefrom statement in that although flow of control is (after the initial assignment to Dispatch) determined not by the caller but by the called, there is more freedom in specifying where control is to go.
	www.gre.ac.uk /~hj05/stuff/comefrom.htm (915 words)

	Come From
		ComeFrom has as its purpose in life exactly to state where it is coming from, although the named spot in the program is supposed to be blissfully unaware of it.
		Don't know about all the roots of ComeFrom, but it was fairly well established (as a joke, at least) by the time I encountered it around 1977 (consistent with an INTERCAL origin, if that's taken as 1972; this is frankly the first I'd heard of INTERCAL as such).
		At Dartmouth (home of BASIC), this was used in structured-programming arguments: ComeFrom was asserted to be isomorphic to GoTo, in that the one could be mechanically translated to the other (it's true for many cases, but I haven't thought about this since so take it with a grain of salt).
	c2.com /cgi/wiki?ComeFrom (1446 words)

	entrian.com - goto for Python - goto for Python
		The 'goto' and 'comefrom' keywords add flexibility to Python's control flow mechanisms, and allow Python programmers to use many common control flow idioms that were previously denied to them.
		'comefrom' is typically used as a debugging aid - its use in production code is discouraged since it can lead to surprising behaviour.
		There are some classes of goto and comefrom which would be unpythonic, and hence there are some restrictions on where jumps can go:
	www.entrian.com /goto (397 words)

	ASPN : Acme::ComeFrom 0.05 (Site not responding. Last check: 2007-11-03)
		Starting from version 0.05, the value of EXPR is evaluated each time, instead of the old 'frozen at the first check' behaviour.
		In fact, it isn't a comefrom in the normal sense at all, and doesn't have the stigma associated with other
		Instead, it installs a post-processing handler for the subroutine, so a jump is made just after the subroutine's execution.
	aspn.activestate.com /ASPN/CodeDoc/Acme-ComeFrom/ComeFrom.html (447 words)

	PHP 6 picks up GOTO and COMEFROM \| Lambda the Ultimate
		COMEFROM seems particularly dangerous, confusing, and solveable by other means.
		I think anyone who has dealt with code heavily infested with the Observer Pattern soon realises that it is merely an OO implementation of the "COMEFROM" statement.
		In the same way the Singleton pattern is merely OO lipstick on the "global variable" swine.
	lambda-the-ultimate.org /node/1392 (732 words)

	PHPDeveloper.org: SitePoint PHP Blog: PHP6 gets a COMEFROM statement
		Some have argued it flys in the face of many years good programming sense but there are valid use cases, when running performance critical operations such as parsing, where the overhead of making PHP user function calls becomes significant.
		Anyway GOTO seems to have opened the gates to some more radical language modifications and recent discussion a revolved around adding a COMEFROM statement to PHP, which led to an initial patch being applied to the PHP6 CVS branch here.
		The statement allows you to modify your code's behavior based on where it came from rather than just forwarding around bits of code from one place to the next.
	www.phpdeveloper.org /news/5083 (292 words)

	STRUCTURED PROGRAMMING CONSIDERED HARMFUL
		COMEFROM (L1, L2,...) IV -- the computed COMEFROM, where IV is an index variable whose value selects one of the labels in the list;
		COMEFROM IV, (L1, L2,..) -- which is an assigned COMEFROM (similar to FORTRAN's Assigned GOTO).
		In the case of multiple COMEFROM's referring to the same label, the last executed COMEFROM would have precedence.
	www.modell.com /Magery/SPharmful.html (1277 words)

	vga_runinbackground
		Using vga_runinbackground(VGA_GOTOBACK, void (goto)()) and vga_runinbackground(VGA_COMEFROMBACK, void (comefrom)()) with function pointers to functions void goto(void) and void comefrom(void) you can setup function to be called when your program goes to background mode and when it comes back to foreground.
		You should check and not call it when the svgalib in use returns 0.
		The goto and comefrom routines provide a way to overcome this restriction.
	www.devdaily.com /unix/man/man3/vga_runinbackground.3.shtml (851 words)

	A new member of the legion of geek ghosts - The Geek Culture Forums
		In 1968, he published GOTO Considered Harmful in CACM (according to legend, he wanted to publish a full-length paper, but decided it was more important to get this idea published quickly and made it a letter-to-the-editor).
		A tongue-in-cheek response was the proposal of the COMEFROM, which is funny on its own, but it's even funnier because one of the latest "interest items" is aspect-oriented programming, which looks like COMEFROM to me.
		But it is a more managed form of COMEFROM than the raw COMEFROM (as procedure calls are to GOTO).
	www.geekculture.com /ultimatebb/Forum15/HTML/000654.html (379 words)

	Vals Top Rail Howards
		She has made her love of horses and her desire to compete a lifelong commitment.
		Both of the Howards comefrom a long line of horse trainers, breeders and competitors.
		Machele is a fifth generation horse trainer while her husband David is a fourth generation horseman.
	www.horsereview.com /Features/Val's/vals_top_rail_howards.htm (422 words)

	asteroids
		Comets are small, fragile, irregularly shaped bodies composed of a mixture of non-volatile grains and frozen gases.
		Comets comefrom the far reaches of our solar system, in structures like the Oort cloud.
		Near Earth Object (NEO) is the term that emcompasses all the objects who's path come earth the earth's orbit.
	www.mtholyoke.edu /~sastiltn/asteroid.htm (574 words)

	Linux / manualindex / vga_runinbackground
		Also, when writing applications, check with #ifdef VGA_GOTOBACK /* code using vga_runinbackground(VGA_GOTOBACK, goto) / #else / code using no goto or comefrom function */ #endif if you are compiling with an svgalib that supports this feature, and try to rearrange your source to work without it when an svgalib version prior to 1.2.11 is used.
		More information about gpm-linux can be founded from lat- est gpm packet (by Alessandro Rubini).
		There are so far two different methods for background run- ning.
	www.linux.se /showMan.php?TITLE=vga_runinbackground&SECTION=3 (915 words)

	Planet PHP (Site not responding. Last check: 2007-11-03)
		On slightly the same topic: the php6dev blog has been doing some benchmarks to see how the new PHP6 stands up to PHP5.
		seems to have opened the gates to some more radical language modifications and recent discussion a revolved around adding a COMEFROM statement to PHP, which led to an initial patch being applied to the PHP6 CVS branch here.
		GOTO seems to have opened the gates to some more radical language modifications and recent discussion a revolved around adding a COMEFROM statement to PHP, which led to an initial patch being applied to the PHP6 CVS branch here.
	www.planet-php.net /search/php6 (1287 words)

	SitePoint Blogs » PHP6 gets a COMEFROM statement (Site not responding. Last check: 2007-11-03)
		Unfortunately, as SitePoint takes advantage of web standards that your browser seems unable to support, this site's layout will be simplified in your browser.
		I was smirking at the very mention of comefrom but laughed outloud at: “INTERCAL, a language which, for various reasons never hit mainstream”.
		When Harry Fuecks wrote about the inclusion of a COMEFROM statement on April 1 it was greeted with universal praise for being a truly excellent gag.
	www.sitepoint.com /blogs/2006/03/31/php6-gets-a-comefrom-statement (1095 words)

	PHP6 gets a COMEFROM statement - php \| architect — The PHP Magazine for PHP Professionals
		To add one or more tags to this page, simply enter them below (separate them with a comma) and hit enter or click on the "Go" button.
		Harry Fuecks has this new post that talks about adding a COMEFROM statement to PHP 6.
		This form allows you to type in a new comment.
	www.phparch.com /news/3017 (397 words)

	Art Therapy Forum (Site not responding. Last check: 2007-11-03)
		The goal is to eventaully drop the word disability arts.
		For November 2000, as an example of how sports and arts can come together, we hope to have Special Olympians who are visual artists comefrom around the world.
		Also, we hope to highlight many, many diverse community resources to show that it is community partnerships that enable ongoing art programming.
	www.sofer.com /art-therapy/forum/read.php3?id=582 (110 words)

	Sea of Noise
		We all know that GO TO is considered harmful.
		Does that mean COMEFROM should be considered harmless?
		Apparently, Lily Allen's mum (film producer Allison Owen) has great taste in music; so it's no surprise that classic British groups like Squeeze and The Specials sprang to mind when I first listened to Allen's music.
	seaofnoise.com /blosxom?_start=6 (1398 words)

	Re: [SurgeMail List] Re: How do I only allow outgoing mail to comefrom users? - Thu, 10 Jun 2004 11:11:28 +1200 (Site not responding. Last check: 2007-11-03)
		Re: [SurgeMail List] Re: How do I only allow outgoing mail to comefrom users?
		Yes check the logs, they tell you the exact reason someone is allowed to relay.
		Simple index of items from the news group
	netwinsite.com /netwin.surgemail/item_3710.htm (293 words)

	Inauguration 2001: A Citizens' Oath of Office
		If Bush is not our president, and Gore wouldn't have been either, thequestion is clear: Who can be our leader?
		At that moment, I asked the people in the crowd to turn to the personnext to them, then turn to the other side, and then to look at themselves.If our movements are to be truly popular movements, leadership will comefrom us.
		We will all, at some point and in some fashion,have to step forward to claim both the right and the obligation to lead.
	uts.cc.utexas.edu /~rjensen/freelance/citizensoath.htm (571 words)

	Circuit Cellar Ink 15 - June/July 1990 (Site not responding. Last check: 2007-11-03)
		Sure, everyone talks about a ComeFrom -- but no one codes one.
		Jim Hubert decided to stop talking and start programming, and this useful technique is the result.
		Follow this link to order a copy of INK 15
	www.dtweed.com /circuitcellar/caj00015.htm (346 words)

	Utah PHP Users Group - Everything PHP! (Site not responding. Last check: 2007-11-03)
		Saturday, 01 April 2006 @ 06:09 AM MST
		Harry Fuecks of phpPatterns and Dynamically Typed: SitePoint's PHP blog has posted some thoughts the COMEFROM statement to be included in PHP 6.
		A controversial topic, he discusses it's use and gives an example.
	uphpu.org /index.php?page=3 (894 words)

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