web

Web is a computer programming system created by Donald E. Knuth as the first implementation of what he called "literate programming": the idea that one could create software as works of literature, by embedding source code inside descriptive text, rather than the reverse (as is common practice in most programming languages), in an order that is convenient for exposition to human readers, rather than in the order demanded by the compiler.Web consists of two secondary programs: TANGLE, which produces compilable Pascal code from the source texts, and WEAVE, which produces nicely-formatted, printable documentation using TeX.
CWEB is a version of Web for the C programming language, while noweb is a separate literate programming tool, which is inspired by Web (as reflected in the name) and which is language agnostic.
The most significant programs written in Web are TeX and Metafont. Modern TeX distributions use another program Web2C to convert Web source to C.

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  1. P

    Spate of E168 faults

    Hi is anyone else getting call outs with 3 year old Duotecs when turning on the heating for the first time this year getting E168 fault and heating not working,, I have been to 3 in the last 2 weeks all resulting in new pcb's being fitted.. I have just had another call with exactly the same...
  2. F

    commercial flushing

    what commercial flushing chemicals are available to use and were can i get them cheers
  3. D

    British Gas CDI boiler - no heating or hot water, help!

    Hi there, I just moved to a new property and the British Gas CDI boiler seems to have stopped working - the little water dial says 0.5 (maybe this should be higher?) and the 2 lights for water tap and (what looks like) radiator are now flashing red (which I presume is meant to alert me to the...
    • Drwatson
    • Thread
    • bar boiler boilers british british gas button central heating system cold filling loop fix gas help hot hot water no heating oil pipe pressure problem radiator reset tap water water tap web worcester work
    • Replies: 15
    • Forum: Plumbing Jobs | The Job-board
  4. R

    fast track

    not been in the game for a long time ,since 1979,beening having a look around the forum,whats interesting me is the fast track courses,not the pros and cons ,think ive got that now ,,but how they came about,was it the last goverments responce to trying send send everybody to uni ,that left no...
    • rumpo
    • Thread
    • bathroom building cold courses cylinder eco fast fast track fix heating hot hot water jobs mixer pipe plumbers plumbing polish problem regulations tank track training water web work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  5. A

    149 viewers.

    hi all long time no chat. i just signed on after finishing a long job out of the country, and i cant believe there are 149 viewing, thats incredable last time i logged on about 3 weeks ago the average was about 35 viewers, is there all of a sudden a lot of work out there.
  6. T

    Engineer

    What is an engineer ? Are you a PLumber ? Are you a Gas fitter? Are you an Engineer ? And why ? What is the Engineering Council ?
    • Toddyplumb
    • Thread
    • air career city courses eco engineer gas guilds heating high industry nvq pipe plumber plumbers plumbing solar thermal training underfloor water web work worried
    • Replies: 24
    • Forum: Plumbing Jobs | The Job-board
  7. A

    Hot water cylinder spec?

    Hi Folks, I've got a leaking cylinder. It is gravity fed. Do i need the heat exchanger to be 28mm?? If yes, are they easy to get hold off? I understand screwfix cylinders are for pump fed systems only - i assume this is becuase the heat exhchangers are narrower pipe? I'm still trying to find...
    • Andrew 03
    • Thread
    • 28mm air cheap cold cold water copper cylinder difficult fed gravity hot hot water hot water cylinder insulation leaking pipe pressure problem pump replacement water web
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  8. D

    Croppie's Whiskey Shelf

    :p Just takin a look at me wee collection (just as I'm spilling a drop down me throat!) and I think I might find out who's into their whiskeys and which ones. My shelf has........ The Balvennie Doublewood 12yr old Laphroaig 10yr old Glenfiddich Rich Oak 14yr old The Glenlivet French Oak Reserve...
  9. B

    Stupid things I have done!

    I was working on a new car plant once, hanging 3/16" cast down the girder web. To fix them to the girders we where firing the old "Tornado" guns, with 3/8" studs. The gun was later banned as being to dangerous. The depth of penetration into the web was governed by the colour of the cartridge...
  10. B

    Gas sizing chart

    been to look at a gas pipe job today and the boiler will be 9m away from the meter and there is a fire and a hob .so when calculating the gas pipe the boiler lenght with elbows etc equals a lenght of 15m and there are 3 sections of pipe so the 15m must be multiplied by3 to give a max 1/4...
    • buckley plumb
    • Thread
    • 22mm 28mm appliance boiler bosch copper corgi courses gas gas pipe inside installation job pipe pipe size pipework pressure problem sizing supply tips video web worcester work
    • Replies: 15
    • Forum: Plumbing Jobs | The Job-board
  11. B

    LPG Offtake

    Hi Fellow Gas Men I have to quote for an LPG installation for a 6 burner dual fuel cooker how do I work the offtake out to determine bottle and change over size. You dont have to divulge to the public tell me where to look.:confused: Thanks
    • Bill the gasman
    • Thread
    • burner cooker corgi gas installation lpg manual public training web work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  12. G

    Looking for a small (400x300) dual fuel radiator or towel rail for drying cupboard

    Hi guys, first post here so hi all. Im most of the way through completely refurbishing my kitchen and utility room, and am not at the point of having to start plumbing it. Part of the utility room has been partioned off to make a toilet and a walk in cupboard. I was planning on using the...
    • gazzarose
    • Thread
    • boiler boilers central heating system cheap combi copper cupboard dual dual fuel electric element kitchen looking plumbing price radiator radiators rail toilet towel towel rail trade valve water web wide winter
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  13. H

    chrome panel radiator and chrome or metal style timer programmer? where get one?

    hi, 1) anyone know what manufacture do a 300 x 700 panel radiator in chrome? (not really designer flashy one :) ) has anyone ever had a paint job on one to look chrome? 2) also i am looking for a 2 channel timer/programmer colour of chrome or metal style ? if you know of one where can i...
    • heatman
    • Thread
    • chrome job metal paint panel programmer radiator radiators style timer trade web where
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  14. D

    basin mixer taps 100mm centres

    removed these taps,the owner said they where installed in 1940,i tried to repair them but unfortunately they broke i have tried to get a replacement with no luck ,has anyone any ideas
    • desrob
    • Thread
    • basin bathroom centres inside jobs leeds merchants mixer plumber replacement screw shower tap taps valves waste web work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  15. S

    gas safe sham or con

    is it just me or is everyone else getting sick and tired of being baby sat by these regulators first corgi who to be fair were not to bad but now gas safe which is just a money making scheme after all what have we paid for and god forbid you have a year out it doubles and for what ......to go on...
    • sye
    • Thread
    • advertising boiler corgi costs difficult fitting gas gas engineer gas safe gas safe register gsr hose kitchen membership problem public safe save money system training vent wall waste web work
    • Replies: 33
    • Forum: Plumbing Jobs | The Job-board
  16. B

    new radiator too short-help please

    hi can someone give me some adivce please i have just replaced my old rad{1130mm} with new one {1100} so now it is a bit too short to reach the valves---i have looked on wickes and b&q web site to see if they stock Union Valve Tails ,but they do not seem to have them--could i just use a --...
    • blurayaddict
    • Thread
    • 40mm connector copper diy head heating manual new radiator please plumbing rad valve radiator screw stock tools valve valves web
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  17. K

    service or landlords safety check without manufacturers instructions?

    Hi Guys, I'm still learning here and wondered what the book answer is to the title, and what the real world answer maybe is? thx
    • kyle
    • Thread
    • appliance boiler check gas landlords manual manufacturers ncs safe safety service training warning web without
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  18. C

    A case for Trading Standards?

    Hi The history: My friend used to have a pump on her shower, unfortunately this was deemed to be illegal as it interfered with her downstairs-neighbour's supply. Apparently it was causing some kind of back pressure, though I'm none-too-clear on this part. Anyway, the pump was removed and...
    • cappsie
    • Thread
    • boiler combi combi boiler gas head high hose job mains pipes plumber pressure pump shower shower head standards supply switch system tiles video wall water water pressure web
    • Replies: 31
    • Forum: Plumbing Jobs | The Job-board
  19. T

    Condensing Boilers

    Hi All, can anyone tell me what year Vaillant introduced condensing boilers to the UK market?? thanks T.
  20. A

    where should i learn plumbing?

    Hi, I want to learn plambing and start as a second job. Is this a good idea? I do not want to pay a fortune and end up with nowhere. Please need some advice. Where should i learn? C&G 1628 is it enough to start as a plumber? How much will it cost? I am living in barking.
    • aft75
    • Thread
    • ableskills bathroom bodies cold courses diy find flexible free hose job learn plumber plumbers plumbing pressure should skills store tiling trade training water web where work
    • Replies: 13
    • Forum: Plumbing Jobs | The Job-board

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