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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/* virt-builder
* Copyright (C) 2013 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* This file handles the interface between the C/lex/yacc index file
* parser, and the OCaml world. See F<builder/index_parser.ml> for
* the OCaml type definition.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <caml/alloc.h>
#include <caml/fail.h>
#include <caml/memory.h>
#include <caml/mlvalues.h>
#include <caml/unixsupport.h>
#include "index-struct.h"
#include "index-parse.h"
extern int do_parse (struct parse_context *context, FILE *in);
extern value virt_builder_parse_index (value progv, value error_suffixv, value filenamev);
value
virt_builder_parse_index (value progv, value error_suffixv, value filenamev)
{
CAMLparam2 (progv, filenamev);
CAMLlocal5 (rv, v, sv, sv2, fv);
struct section *sections;
size_t i, nr_sections;
struct parse_context context;
FILE *in;
parse_context_init (&context);
context.progname = String_val (progv);
context.input_file = String_val (filenamev);
context.error_suffix = String_val (error_suffixv);
in = fopen (String_val (filenamev), "r");
if (in == NULL)
unix_error (errno, (char *) "fopen", filenamev);
if (do_parse (&context, in) != 0) {
fclose (in);
caml_invalid_argument ("parse error");
}
if (fclose (in) == EOF)
unix_error (errno, (char *) "fclose", filenamev);
/* Convert the parsed data to OCaml structures. */
nr_sections = 0;
for (sections = context.parsed_index; sections != NULL; sections = sections->next)
nr_sections++;
rv = caml_alloc (nr_sections, 0);
for (i = 0, sections = context.parsed_index; sections != NULL;
i++, sections = sections->next) {
struct field *fields;
size_t j, nr_fields;
nr_fields = 0;
for (fields = sections->fields; fields != NULL; fields = fields->next)
nr_fields++;
fv = caml_alloc (nr_fields, 0);
for (j = 0, fields = sections->fields; fields != NULL;
j++, fields = fields->next) {
v = caml_alloc_tuple (3);
sv = caml_copy_string (fields->key);
Store_field (v, 0, sv); /* (key, Some subkey, value) */
if (fields->subkey) {
sv2 = caml_copy_string (fields->subkey);
sv = caml_alloc (1, 0);
Store_field (sv, 0, sv2);
} else
sv = Val_int (0);
Store_field (v, 1, sv);
sv = caml_copy_string (fields->value);
Store_field (v, 2, sv);
Store_field (fv, j, v); /* assign to return array of fields */
}
v = caml_alloc_tuple (2);
sv = caml_copy_string (sections->name);
Store_field (v, 0, sv); /* (name, fields) */
Store_field (v, 1, fv);
Store_field (rv, i, v); /* assign to return array of sections */
}
/* Free parsed data. */
parse_context_free (&context);
CAMLreturn (rv);
}
|
