/usr/share/gnudatalanguage/astrolib/tbprint.pro is in gdl-astrolib 2018.02.16+dfsg-1.
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num_header_lines=num_header_lines,nval_per_line=nval_per_line
;+
; NAME:
; TBPRINT
; PURPOSE:
; Procedure to print specified columns & rows of a FITS binary table
;
; CALLING SEQUENCE:
; TBPRINT, h, tab, columns, [ rows, TEXTOUT =, FMT=, NUM_HEADER= ]
; or
; TBPRINT,tb_str, tab, columns, [ rows, TEXTOUT =, FMT=, NUM_HEADER = ]
;
; INPUTS:
; h - FITS header for table, string array
; or
; tb_str - IDL structure extracted from FITS header by TBINFO, useful
; when TBPRINT is called many times with the same header
; tab - table array
; columns - string giving column names, or vector giving
; column numbers (beginning with 1). If string
; supplied then column names should be separated by comma's.
; If set to '*' then all columns are printed in table format
; (1 row per line, binary tables only).
; rows - (optional) vector of row numbers to print. If
; not supplied or set to scalar, -1, then all rows
; are printed.
;
; OUTPUTS:
; None
; OPTIONAL INPUT KEYWORDS:
; FMT = Format string for print display. If not supplied, then any
; formats in the TDISP keyword fields of the table will be
; used, otherwise IDL default formats.
; NUM_HEADER_LINES - Number of lines to display the column headers
; default = 1). By setting NUM_HEADER_LINES to an integer larger
; than 1, one can avoid truncation of the column header labels.
; In addition, setting NUM_HEADER_LINES will display commented
; lines indicating a FORMAT for reading the data, and a
; suggested call to readfmt.pro.
; NVAL_PER_LINE - The maximum number of values displayed from a multivalued
; column when printing in table format. Default = 6
; TEXTOUT - scalar number (0-7) or string (file name) determining
; output device (see TEXTOPEN). Default is TEXTOUT=1, output
; to the user's terminal
; SYSTEM VARIABLES:
; Uses nonstandard system variables !TEXTOUT and !TEXTOPEN
; Set !TEXTOUT = 3 to direct output to a disk file. The system
; variable is overriden by the value of the keyword TEXTOUT
;
; EXAMPLES:
; tab = readfits('test.fits',htab,/ext) ;Read first extension into vars
; tbprint,h,tab,'STAR ID,RA,DEC' ;print id,ra,dec for all stars
; tbprint,h,tab,[2,3,4],indgen(100) ;print columns 2-4 for
; first 100 stars
; tbprint,h,tab,text="stars.dat" ;Convert entire FITS table to
; ;an ASCII file named 'stars.dat'
;
; PROCEDURES USED:
; GETTOK(), STRNUMBER(), TEXTOPEN, TEXTCLOSE, TBINFO
;
; RESTRICTIONS:
; (1) Program does not check whether output length exceeds output
; device capacity (e.g. 80 or 132).
; (2) Column heading may be truncated to fit in space defined by
; the FORMAT specified for the column. Use NUM_HEADER_LINES
; to avoid truncation.
; (3) Program does not check for null values
; (4) Does not work with variable length columns
; (5) Will only the display the first value of fields with multiple values
; (unless there is one row each with the same number of mulitple values)
; If printing in table format (column='*') then up to 6 values
; can be printed per line.
;
; HISTORY:
; version 1 D. Lindler Feb. 1987
; Accept undefined values of rows,columns W. Landsman August 1997
; Use new structure returned by TBINFO W. Landsman August 1997
; Made formatting more robust W. Landsman March 2000
; Use STRSPLIT to parse string column listing W. Landsman July 2002
; Wasn't always printing last row W. Landsman Feb. 2003
; Better formatting (space between columns) W. Landsman Oct. 2005
; Use case-insensitive match with TTYPE, use STRJOIN W.L. June 2006
; Fixed check for multiple values W.L. August 2006
; Fixed bad index value in August 2006 fix W.L Aug 15 2006
; Free-up pointers after calling TBINFO W.L. Mar 2007
; Add table format capability W.L. Mar 2010
; Add NUM_HEADER_LINE keyword P. Broos Apr 2010
;-
On_error,2
compile_opt idl2
if N_params() LT 2 then begin
print,'Syntax - TBPRINT, h, tab, [ columns, rows, device, '
print,' TEXTOUT= ,FMT=, NUM_HEADER_LINES= '
return
endif
; set default parameters
if N_elements(columns) EQ 0 then columns = -1
if N_elements(rows) EQ 0 then rows= -1
if ~keyword_set(textout) then textout = 1
if N_elements(nval_per_line) EQ 0 then $
nval_per_line = 6 ;Number of values that can be displayed in 'table' format
nbytes = [1,2,4,4,8,8,1,0,16]
fmt_def = ['','I4','I8','I12','G13.6','G16.8','','A','','','','']
; make sure rows is a vector
sz = size(tab)
nrows = sz[2]
r = long(rows)
if r[0] eq -1 then r = lindgen(nrows) ;default
n = N_elements(r)
dotable = n EQ 1 ;Print in table format?
; Did user supply a FITS header, or a structure (output of tbinfo)?
case size(hdr_or_tbstr,/type) of
7: tbinfo,hdr_or_tbstr,tb_str
8: tb_str = hdr_or_tbstr
else: message,'ERROR - Invalid FITS header or structure supplied'
endcase
tfields = N_elements(tb_str.ttype)
; if columns is a string, change it to string array
if size(columns,/tname) eq 'STRING' then begin
if columns[0] EQ '*' then begin
colnum = indgen(tfields) + 1
numcol = tfields
dotable = 1
endif else begin
colnames = strsplit(columns,',',/extract)
numcol = N_elements(colnames)
colnum = intarr(numcol)
field = strupcase(colnames)
for i = 0,numcol-1 do begin
colnum[i] = where(strupcase(tb_str.ttype) EQ field[i],nfound) + 1
if nfound EQ 0 then $
message,'Field '+ field[i] + ' not found in header'
endfor
endelse
endif else begin ;user supplied vector
colnum = fix(columns) ;make sure it is integer
if colnum[0] eq -1 then colnum = indgen(tfields) + 1
numcol = N_elements(colnum) ;number of elements
endelse
if ~keyword_set(fmt) then form = tb_str.tdisp[colnum-1] else begin
if N_elements(fmt) EQ 1 && (numcol GT 1) then begin
temp = strupcase(strtrim(fmt,2))
if strmid(temp,0,1) EQ '(' then $
temp = strmid(temp,1,strlen(temp)-2)
form = strarr(numcol)
ifmt = 0
while strtrim(temp,2) NE '' do begin
tstform = gettok(temp,',')
ndup = 1
vtype = strmid(tstform,0,1)
if strnumber(vtype,val) then begin
ndup = val
tstform = strmid(tstform,1,100)
endif
if strpos(tstform,'X') LT 0 then begin
form[ifmt:ifmt+ndup-1]=tstform
ifmt += ndup
endif
endwhile
endif else form = fmt
endelse
default = where(form EQ '',Ndef)
if Ndef GT 0 then form[default] = fmt_def[ tb_str.idltype[colnum[default]-1] ]
form = strtrim(form,2)
row_format = strjoin(form,',1x,')
num = where(tb_str.idltype[colnum-1] NE 7, Nnumeric)
if Nnumeric GT 0 then minnumval = min(tb_str.numval[colnum[num]-1]) $
else minnumval = 1
if (minnumval GT 1) then begin
if rows[0] NE -1 then nrow1 = N_elements(rows)-1 else begin
rows = lindgen(minnumval)
nrow1 = minnumval-1
endelse
endif
textopen,'TBPRINT', TEXTOUT = textout
field = tb_str.ttype[colnum-1]
fieldlen = strlen(field)
;Print in table format?
dotable = dotable || (n EQ 1) && (minnumval LE nval_per_line)
if dotable then begin
maxlen = max(fieldlen)
for j = 0, n-1 do begin
printf,!TEXTUNIT,'ROW: ',r[j]
for i = 0, numcol-1 do begin
val = tbget(tb_str,tab,colnum[i],r[j])
nval = N_elements(val)
if nval GT 1 then begin ;Print up to 5 values
val = strcompress(strjoin(val[0:(nval-1)< (nval_per_line-1)],' '))
if nval GT nval_per_line then val = val + '...'
endif
printf,!TEXTUNIT, colnum[i],') ', field[i],strtrim(string(val,/pr),2),$
f='(i3,A,A-' + strtrim(maxlen+2,2) + ',A)'
endfor
printf,!TEXTUNIT, ' '
endfor
endif else begin
varname = 'v' + strtrim(sindgen(numcol)+1,2)
len = lonarr(numcol)
varstr = varname + '[0]'
xform = '(' + form + ')'
for i = 0,numcol-1 do begin
result = execute(varname[i] + '= tbget(tb_str,tab,colnum[i],r)' )
result = execute('len[i] = strlen(string(' + varstr[i] + ',f=xform[i]))')
endfor
if keyword_set(num_header_lines) then begin
;; Build a multi-line header showing the column names left-justified.
header = strarr(num_header_lines+1)
; The printed data columns are separated by a space, so the column widths are actually (len+1).
column_width = len + 1
for ii=0,numcol-1 do begin
header_ind = ii MOD num_header_lines
; Pad the start of the header lines as needed.
if ((ii GT 0) && (ii LT num_header_lines)) then header[header_ind] += string(replicate(32B, total(column_width[0:ii-1], /INT)))
if ((ii+num_header_lines) LT numcol) then begin
; The space we have to print this label is the width of the next num_header_lines columns, minus one space for the '|' separator..
; Put the label at the LEFT end of this space.
label_length = total(column_width[ii : ii+num_header_lines-1], /INT) - 1
label_format_code = string(label_length, F='(%"|%%-%ds")')
endif else begin
; We're at the end of the header line, so print this last label without truncation.
label_format_code = '|%s'
endelse
header[header_ind] += string(field[ii], F='(%"'+label_format_code+'")')
endfor ; ii
printf,!TEXTUNIT, "# FORMAT='" + row_format + "'"
printf,!TEXTUNIT, 3+num_header_lines+1, strjoin(field,','), F='(%"# readfmt, ''table.txt'', SKIPLINE=%d, FORMAT, %s")'
printf,!TEXTUNIT, "#"
header[num_header_lines] = string(replicate(byte('-'), max(strlen(header))))
strput, header, '#', 0
forprint, TEXTOUT=5, header, /NoComment
endif else begin
;; Build a single-line header showing the column names centered on the columns.
field = strtrim(tb_str.ttype[colnum-1],2)
fieldlen = strlen(field)
for i=0,numcol-1 do begin
if fieldlen[i] LT len[i] then begin
space = len[i] - fieldlen[i]
if space EQ 1 then field[i] = field[i]+ ' ' else begin
pad = string(replicate(32b,space/2))
field[i] = pad + field[i] + pad
if space mod 2 EQ 1 then field[i] = field[i] + ' '
endelse
endif else field[i] = strmid(field[i],0,len[i])
endfor
printf,!TEXTUNIT,field
endelse
if size(hdr_or_tbstr,/TYPE) NE 8 then begin
ptr_free, tb_str.tscal
ptr_free, tb_str.tzero
endif
; If there are multiple values then only print the first value....
if minnumval EQ 1 then begin
index = replicate('[i]',numcol)
g = where( tb_str.numval[colnum-1] GT 1,Ng)
if Ng GT 0 then index[g] = '[0,i]'
vstring = strjoin(varname + index,',')
endif else vstring = strjoin(varname + '[i]',',')
row_format = '(' + row_format + ')'
if minnumval EQ 1 then $
result = execute('for i=0,n-1 do printf,!TEXTUNIT,' + $
vstring + ',f=row_format') else $
result = execute('for i=rows[0],rows[nrow1] do printf,!TEXTUNIT,' + $
vstring + ',f=fmt')
endelse
textclose, TEXTOUT = textout
return
end
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