1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
include <fset.h>
# T_TXSELECT -- Select records from an APPHOT file based on the value of
# a logical expression.
procedure t_txselect ()
int tp_in # input file descriptor
int tp_out # output file descriptor
pointer expr # pointer to the expression string
int inlist, outlist
pointer sp, infile, outfile
int clpopnu(), clplen(), access(), open(), fstati(), clgfil(), pt_xselect()
begin
# Set the standard output to flush on newline.
if (fstati (STDOUT, F_REDIR) == NO)
call fseti (STDOUT, F_FLUSHNL, YES)
# Get some memory.
call smark (sp)
call salloc (infile, SZ_FNAME, TY_CHAR)
call salloc (outfile, SZ_FNAME, TY_CHAR)
call salloc (expr, SZ_LINE, TY_CHAR)
# Get the various task parameters.
inlist = clpopnu ("textfiles")
outlist = clpopnu ("outfiles")
call clgstr ("expr", Memc[expr], SZ_LINE)
# Check that the input and output file lists have the
# same length.
if (clplen (inlist) != clplen (outlist))
call error (0,
"Input and output file lists are not the same length")
while ((clgfil (inlist, Memc[infile], SZ_FNAME) != EOF) &&
(clgfil (outlist, Memc[outfile], SZ_FNAME) != EOF)) {
# Open the input file.
if (access (Memc[infile], 0, TEXT_FILE) == YES)
tp_in = open (Memc[infile], READ_ONLY, TEXT_FILE)
else
call error (0, "The input file is a binary file.")
# Open an output text file.
tp_out = open (Memc[outfile], NEW_FILE, TEXT_FILE)
# Select the stars.
if (pt_xselect (tp_in, tp_out, Memc[expr]) <= 0) {
call eprintf ("File: %s is empty\n")
call pargstr (Memc[infile])
}
# Close up the input and output files.
call close (tp_in)
call close (tp_out)
}
call clpcls (inlist)
call clpcls (outlist)
call sfree (sp)
end
|
