annotate fir/rdcommon.c @ 407:183e81c8f6c0

hr-bits: sid-count program written
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 22 Jul 2024 10:00:58 +0000
parents 9b3e5be96bab
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
376
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 * This C file is not a compilation unit in itself, but is the common piece
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * (a set of static variables and functions) included in the librftab modules
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * responsible for reading different kinds of ASCII tables.
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 */
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 #define MAX_FIELDS_PER_LINE 64
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 static char *filename;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 static FILE *rdfile;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 static unsigned lineno;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 static char linebuf[256], *line_fields[MAX_FIELDS_PER_LINE];
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 static unsigned line_nfields, line_field_ptr;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 static int
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 read_line()
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 char *cp;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 if (!fgets(linebuf, sizeof linebuf, rdfile))
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 return(0);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 lineno++;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 cp = linebuf;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 for (line_nfields = 0; ; ) {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 while (isspace(*cp))
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 cp++;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 if (*cp == '\0' || *cp == '#')
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 break;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 if (line_nfields >= MAX_FIELDS_PER_LINE) {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 fprintf(stderr,
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 "%s line %d: too many fields on one line\n",
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 filename, lineno);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 return(-1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 line_fields[line_nfields++] = cp;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 while (*cp && !isspace(*cp))
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 cp++;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 if (*cp)
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 *cp++ = '\0';
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 return(1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 static
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 get_field(retp)
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 char **retp;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 int rc;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 if (line_field_ptr < line_nfields) {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 *retp = line_fields[line_field_ptr++];
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 return(1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 do {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 rc = read_line();
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 if (rc <= 0)
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 return(rc);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 } while (!line_nfields);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 *retp = line_fields[0];
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 line_field_ptr = 1;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 return(1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 }