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include <ctype.h>
include "cqdef.h"
include "cq.h"
# CQ_SETRECORD -- Set the the current record. What action this procedure takes
# depends on the input data type. In the case of text files this task
# sets the current record pointer and figures where in the record each
# column begins. For blocked text files the foffsets determine where each
# record begins.
int procedure cq_setrecord (res, recptr)
pointer res #I the results descriptor
int recptr #U the current record pointer
pointer buf
begin
# The record is outside the record data range.
if (recptr <= 0) {
CQ_RECPTR(res) = 0
CQ_FNFIELDS(res) = 0
call aclri (Memi[CQ_FINDICES(res)], CQ_MAX_NFIELDS + 1)
return (BOF)
}
if (recptr > CQ_RNRECS(res))
return (EOF)
CQ_RECPTR(res) = recptr
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
buf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
call cq_find_fields (Memc[buf], Memi[CQ_FINDICES(res)],
CQ_MAX_NFIELDS, CQ_FNFIELDS(res))
case CQ_BTEXT:
;
default:
}
return (recptr)
end
# CQ_GVALC -- Fetch a record field as a string value.
int procedure cq_gvalc (res, recptr, field, str, maxch)
pointer res #I the results descriptor
int recptr #I the current record pointer
char field[ARB] #I the record field name.
char str[ARB] #O the output string parameter
int maxch #I the maximum number of characters
pointer fbuf
int fnum, fip, fsize
int cq_fnumber(), cq_setrecord()
begin
# The record is outside the record data range.
str[1] = EOS
if (recptr <= 0 || recptr > CQ_RNRECS(res))
return (0)
# Find the field number.
fnum = cq_fnumber (res, field)
if (fnum <= 0)
return (0)
# Set the current record if necessary.
if (recptr != CQ_RECPTR(res)) {
if (cq_setrecord (res, recptr) != recptr)
return (0)
}
# Extract the requested field as a string. If the data is in binary
# internally this will require formatting a string. If the data is
# text this requires extracting the appropriate piece of text.
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fnum = Memi[CQ_FOFFSETS(res)+fnum-1]
fip = Memi[CQ_FINDICES(res)+fnum-1]
fsize = min (maxch, Memi[CQ_FINDICES(res)+fnum] -
Memi[CQ_FINDICES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], str, fsize)
case CQ_BTEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fip = Memi[CQ_FOFFSETS(res)+fnum-1]
fsize = min (maxch, Memi[CQ_FSIZES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], str, fsize)
default:
fsize = 0
}
return (fsize)
end
# CQ_GVALD -- Return a double precision field value
int procedure cq_gvald (res, recptr, field, dval)
pointer res #I the results descriptor
int recptr #I the current record pointer
char field[ARB] #I the record field name.
double dval #O the output double value
pointer fbuf, sp, line
int fnum, fip, fsize, nchars
int cq_fnumber(), ctod(), cq_setrecord()
begin
dval = INDEFD
# The record is outside the record data range.
if (recptr <= 0 || recptr > CQ_RNRECS(res))
return (0)
# Find the field number.
fnum = cq_fnumber (res, field)
if (fnum <= 0)
return (0)
# Set the current record if necessary.
if (recptr != CQ_RECPTR(res)) {
if (cq_setrecord (res, recptr) != recptr)
return (0)
}
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Extract the requested field as a double precision value. If the data
# is in binary internally this may imply a type conversion. If the data
# is text this requires decoding the string value.
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fnum = Memi[CQ_FOFFSETS(res)+fnum-1]
fip = Memi[CQ_FINDICES(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FINDICES(res)+fnum] -
Memi[CQ_FINDICES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctod (Memc[line], fip, dval)
case CQ_BTEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fip = Memi[CQ_FOFFSETS(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FSIZES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctod (Memc[line], fip, dval)
default:
nchars = 0
}
call sfree (sp)
return (nchars)
end
# CQ_GVALR -- Return a real precision field value.
int procedure cq_gvalr (res, recptr, field, rval)
pointer res #I the results descriptor
int recptr #I the current record pointer
char field[ARB] #I the record field name.
real rval #O the output real value
pointer fbuf, sp, line
int fnum, fip, fsize, nchars
int cq_fnumber(), ctor(), cq_setrecord()
begin
rval = INDEFR
# The record is outside the record data range.
if (recptr <= 0 || recptr > CQ_RNRECS(res))
return (0)
# Find the field number.
fnum = cq_fnumber (res, field)
if (fnum <= 0)
return (0)
# Set the current record if necessary.
if (recptr != CQ_RECPTR(res)) {
if (cq_setrecord (res, recptr) != recptr)
return (0)
}
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Extract the requested field as a double precision value. If the data
# is in binary internally this may imply a type conversion. If the data
# is text this requires decoding the string value.
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fnum = Memi[CQ_FOFFSETS(res)+fnum-1]
fip = Memi[CQ_FINDICES(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FINDICES(res)+fnum] -
Memi[CQ_FINDICES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctor (Memc[line], fip, rval)
case CQ_BTEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fip = Memi[CQ_FOFFSETS(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FSIZES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctor (Memc[line], fip, rval)
default:
nchars = 0
}
call sfree (sp)
return (nchars)
end
# CQ_GVALL -- Return a long integer field value.
int procedure cq_gvall (res, recptr, field, lval)
pointer res #I the results descriptor
int recptr #I the current record pointer
char field[ARB] #I the record field name.
long lval #I the output long value
pointer fbuf, sp, line
int fnum, fip, fsize, nchars
int cq_fnumber(), ctol(), cq_setrecord()
begin
lval = INDEFL
# The record is outside the record data range.
if (recptr <= 0 || recptr > CQ_RNRECS(res))
return (0)
# Find the field number.
fnum = cq_fnumber (res, field)
if (fnum <= 0)
return (0)
# Set the current record if necessary.
if (recptr != CQ_RECPTR(res)) {
if (cq_setrecord (res, recptr) != recptr)
return(0)
}
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Extract the requested field as a double precision value. If the data
# is in binary internally this may imply a type conversion. If the data
# is text this requires decoding the string value.
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fnum = Memi[CQ_FOFFSETS(res)+fnum-1]
fip = Memi[CQ_FINDICES(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FINDICES(res)+fnum] -
Memi[CQ_FINDICES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctol (Memc[line], fip, lval)
case CQ_BTEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fip = Memi[CQ_FOFFSETS(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FSIZES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctol (Memc[line], fip, lval)
default:
nchars = 0
}
call sfree (sp)
return (nchars)
end
# CQ_GVALI -- Return an integer field value
int procedure cq_gvali (res, recptr, field, ival)
pointer res #I the results descriptor
int recptr #I the current record pointer
char field[ARB] #I the record field name.
int ival #I the output int value
pointer fbuf, sp, line
int fnum, fip, fsize, nchars
int cq_fnumber(), ctoi(), cq_setrecord()
begin
ival = INDEFI
# The record is outside the record data range.
if (recptr <= 0 || recptr > CQ_RNRECS(res))
return (0)
# Find the field number.
fnum = cq_fnumber (res, field)
if (fnum <= 0)
return (0)
# Set the current record if necessary.
if (recptr != CQ_RECPTR(res)) {
if (cq_setrecord (res, recptr) != recptr)
return (0)
}
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Extract the requested field as a double precision value. If the data
# is in binary internally this may imply a type conversion. If the data
# is text this requires decoding the string value.
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fnum = Memi[CQ_FOFFSETS(res)+fnum-1]
fip = Memi[CQ_FINDICES(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FINDICES(res)+fnum] -
Memi[CQ_FINDICES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctoi (Memc[line], fip, ival)
case CQ_BTEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fip = Memi[CQ_FOFFSETS(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FSIZES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctoi (Memc[line], fip, ival)
default:
nchars = 0
}
call sfree (sp)
return (nchars)
end
# CQ_GVALS -- Return a short integer field value
int procedure cq_gvals (res, recptr, field, sval)
pointer res #I the results descriptor
int recptr #I the current record pointer
char field[ARB] #I the record field name.
short sval #O the output short value
pointer fbuf, sp, line
int fnum, fip, fsize, nchars, ival
int cq_fnumber(), ctoi(), cq_setrecord()
begin
sval = INDEFS
# The record is outside the record data range.
if (recptr <= 0 || recptr > CQ_RNRECS(res))
return (0)
# Find the field number.
fnum = cq_fnumber (res, field)
if (fnum <= 0)
return (0)
# Set the current record if necessary.
if (recptr != CQ_RECPTR(res)) {
if (cq_setrecord (res, recptr) != recptr)
return (0)
}
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Extract the requested field as a double precision value. If the data
# is in binary internally this may imply a type conversion. If the data
# is text this requires decoding the string value.
switch (CQ_RTYPE(res)) {
case CQ_STEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fnum = Memi[CQ_FOFFSETS(res)+fnum-1]
fip = Memi[CQ_FINDICES(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FINDICES(res)+fnum] -
Memi[CQ_FINDICES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctoi (Memc[line], fip, ival)
if (nchars > 0)
sval = ival
case CQ_BTEXT:
fbuf = CQ_RBUF(res) + Memi[CQ_RINDEX(res)+recptr-1] - 1
fip = Memi[CQ_FOFFSETS(res)+fnum-1]
fsize = min (SZ_LINE, Memi[CQ_FSIZES(res)+fnum-1])
call strcpy (Memc[fbuf+fip-1], Memc[line], fsize)
fip = 1
nchars = ctoi (Memc[line], fip, ival)
if (nchars > 0)
sval = ival
default:
nchars = 0
}
call sfree (sp)
return (nchars)
end
# CQ_FIND_FIELDS -- This procedure finds the starting column for each field
# in the input line. These column numbers are returned in the array
# field_pos; the number of fields is also returned.
procedure cq_find_fields (linebuf, field_pos, max_fields, nfields)
char linebuf[ARB] #I the input buffer
int field_pos[max_fields] #O the output field positions
int max_fields #I the maximum number of fields
int nfields #O the computed number of fields
bool in_field
int ip, field_num
begin
field_num = 1
field_pos[1] = 1
in_field = false
for (ip=1; linebuf[ip] != '\n' && linebuf[ip] != EOS; ip=ip+1) {
if (! IS_WHITE(linebuf[ip]))
in_field = true
else if (in_field) {
in_field = false
field_num = field_num + 1
field_pos[field_num] = ip
}
}
field_pos[field_num+1] = ip
nfields = field_num
end
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