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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <ctotok.h>
include <ctype.h>
include "../lib/ids.h"
# RANGE -- set the scaling (range) registers
procedure range()
char token[SZ_LINE]
int tok, i, nchar, ip
short color[IDS_MAXGCOLOR+1]
short rdata[4] # extra space for cvmove EOD
int count, ctoi()
include "cv.com"
begin
# In principle, we should be able to accept input for color group
# followed by range value(s) or "vice versa" or for a series of
# color/range pairs. We try for most of that.
color[1] = IDS_EOD
rdata[1] = ERR
count = 1
# anything but TOK_NEWLINE
tok = TOK_NUMBER
repeat {
if (tok == TOK_NEWLINE) {
call eprintf ("Insufficient range specification\n")
return
}
call gargtok (tok, token, SZ_LINE)
call strlwr (token)
if (token[1] == 'c') {
call cv_color (token[2], color)
if (color[1] == ERR)
return
} else if (tok == TOK_NUMBER) {
ip = 1
nchar = ctoi (token, ip, i)
if (i < 1) {
call eprintf ("bad range specification: %d\n")
call pargi (i)
return
}
if ( count <= 3) {
rdata[count] = i
count = count + 1
}
}
} until ( (rdata[1] != ERR) && (tok == TOK_NEWLINE ))
rdata[count] = IDS_EOD # mark end
call cvrange ( color, rdata)
end
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