How to insert tab in Write() function in VHDL

Question

Hi,I want to insert tab in write() function in VHDL.Here is a write() function definition:    procedure WRITE(L : inout LINE; VALUE : in character;	      JUSTIFIED: in SIDE := right;	      FIELD: in WIDTH := 0);Here is character definition:package standard is	type character is (		nul, soh, stx, etx, eot, enq, ack, bel,		bs,  ht,  lf,  vt,  ff,  cr,  so,  si,		dle, dc1, dc2, dc3, dc4, nak, syn, etb,		can, em,  sub, esc, fsp, gsp, rsp, usp,		' ', '!', '"', '#', '$', '%', '&', ''',		'(', ')', '*', '+', ',', '-', '.', '/',		'0', '1', '2', '3', '4', '5', '6', '7',		'8', '9', ':', ';', '', '?',I want to know which one is tabulator (tab).Thank you.Weng

Sylvain Munaut · Accepted Answer

ht

Symon · Answer

"Sylvain Munaut"  wrote in message news:or vt

Jonathan Bromley · Answer

I know what VT did on an ASR33 Teletype, but I'm not at all sure what it's supposed to dothese days ...Tabs of any kind are extremely bad news anyway,because their appearance is so strongly dependenton the editor or viewer that you use to do therendering.  I hate 'em.  Compute how many spacesyou need and insert the spaces explicitly.-- Jonathan Bromley, ConsultantDOULOS - Developing Design Know-howVHDL * Verilog * SystemC * e * Perl * Tcl/Tk * Project ServicesDoulos Ltd., 22 Market Place, Ringwood, BH24 1AW, UKThe contents of this message may contain personal views which are not the views of Doulos Ltd., unless specifically stated.

Weng Tianxiang · Answer

Hi Jonathan,This time I don't agree with your opinion.What I do is to print out all related waveforms I am interested in andusing tab is to make me easier to manually check if the waveforms areright so that a software can be used later to check the waveformswithout 1 clock after another to manually check waveforms.'ht' works for tab in VHDL.Salvain,Thank you.Weng

glen herrmannsfeldt · Answer

(snip)ht is horizontal tab, vt is vertical tab.  There are terminalsthat know what to do with one or both of those.-- glen

Jonathan Bromley · Answer

Ah - you are using tabs to create a tab-separated file forExcel or some similar software?  If so, then I'm sorry - yes -that's OK.I still think tabs are a crazy way to create human-readablelayouts, because different editors and terminals may handletabs in different ways.  It can get *very* ugly.Indeed.-- Jonathan Bromley, ConsultantDOULOS - Developing Design Know-howVHDL * Verilog * SystemC * e * Perl * Tcl/Tk * Project ServicesDoulos Ltd., 22 Market Place, Ringwood, BH24 1AW, UKThe contents of this message may contain personal views which are not the views of Doulos Ltd., unless specifically stated.

Gabor · Answer

You can see a list of all of these abbreviations at:

Symon · Answer

...but I'd recommend CSV as a better solution for that application.HTH, Syms.

glen herrmannsfeldt · Answer

(snip on TAB character)CSV is probably best as long as the fields can't containa comma.  If they do, then some will quote each string, unlessthe strings can contain quotes.  If the do, then...-- glen

How to insert tab in Write() function in VHDL

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