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include "cqdef.h"
include "cq.h"
# CQ_GNRECORD -- Get next record from the results descriptor.
int procedure cq_gnrecord (res, buf, maxch, recptr)
pointer res #I the results descriptor
char buf[ARB] #O the output record buffer
int maxch #I the maximum buffer size
int recptr #U the current record pointer
int nchars
int getline()
begin
# The record is outside the record data range.
if (recptr < 0)
return (BOF)
if (recptr >= CQ_RNRECS(res))
return (EOF)
# Use file mechanism to extract record. Could also use buffer pointer
# and offsets
switch (CQ_RTYPE(res)) {
# Don't worry about maxch at the moment. Just assume that the
# buffer is at least SZ_LINE long. Can use recsize to return
# a buffer, SZ_LINE is the default. May need to use getlline
# in future.
case CQ_STEXT, CQ_BTEXT:
call seek (CQ_RFD(res), Meml[CQ_RINDEX(res)+recptr])
nchars = getline (CQ_RFD(res), buf)
recptr = recptr + 1
return (nchars)
default:
return (EOF)
}
end
# CQ_GRECORD -- Get a specified record from the results descriptor.
int procedure cq_grecord (res, buf, maxch, recptr)
pointer res #I the results descriptor
char buf[ARB] #O the output record buffer
int maxch #I the maximum buffer size
int recptr #I the record to be extracted
int nchars
int getline()
begin
# Check for out-of-bounds record requests.
if (recptr < 1)
return (BOF)
if (recptr > CQ_RNRECS(res))
return (EOF)
# Use file mechanism to extract record. Could also use buffer pointer
# and offsets
switch (CQ_RTYPE(res)) {
# Don't worry about maxch at the moment. Just assume that the
# buffer is at least SZ_LINE long. Can use recsize to return
# a buffer, SZ_LINE is the default. May need to use getlline
# in future.
case CQ_STEXT, CQ_BTEXT:
call seek (CQ_RFD(res), Meml[CQ_RINDEX(res)+recptr-1])
nchars = getline (CQ_RFD(res), buf)
return (nchars)
default:
return (EOF)
}
end
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