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# PCALC - Recompute a column of an APPHOT/DAOPHOT database using an
# arithmetic expression.
procedure pcalc (infile, field, value)
string infile {prompt="Input apphot/daophot databases(s)"}
string field {prompt="Field to be edited"}
string value {prompt="New value or expression for field"}
struct *inlist
begin
# Local variable declarations.
file tmpin
string in, tfield, tvalue, inname
# Cache the istable parameters.
cache ("istable")
# Get the positional parameters.
in = infile
tfield = field
tvalue = value
# Expand the file list names.
tmpin = mktemp ("tmp$")
files (in, sort=no, > tmpin)
# Loop over each file in the input and output lists selecting records.
inlist = tmpin
while (fscan (inlist, inname) != EOF) {
istable (inname)
if (istable.table) {
if (defpar ("tcalc.verbose") || defpar ("tcalc.harmless")) {
tcalc (inname, tfield, tvalue, datatype="real",
colunits="", colfmt="", verbose=no, harmless=0.1)
} else {
tcalc (inname, tfield, tvalue, datatype="real",
colunits="", colfmt="")
}
} else if (istable.text) {
txcalc (inname, tfield, tvalue)
} else {
print ("Cannot run PCALC on file: " // inname)
}
}
inlist = ""
delete (tmpin, ver-, >& "dev$null")
end
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