move config parser to a convenience library
Create a new directory for convenience librariers that can be shared between compositor components and clients. Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
This commit is contained in:
Pekka Paalanen
@@ -0,0 +1,3 @@
|
||||
noinst_LTLIBRARIES = libconfigparser.la
|
||||
libconfigparser_la_SOURCES = configparser.c \
|
||||
configparser.h
|
||||
@@ -0,0 +1,172 @@
|
||||
/*
|
||||
* Copyright © 2011 Intel Corporation
|
||||
*
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <assert.h>
|
||||
|
||||
#include "configparser.h"
|
||||
|
||||
static int
|
||||
handle_key(const struct config_key *key, const char *value)
|
||||
{
|
||||
char *end, *s;
|
||||
int i, len;
|
||||
|
||||
switch (key->type) {
|
||||
case CONFIG_KEY_INTEGER:
|
||||
i = strtol(value, &end, 0);
|
||||
if (*end != '\n') {
|
||||
fprintf(stderr, "invalid integer: %s\n", value);
|
||||
return -1;
|
||||
}
|
||||
*(int *)key->data = i;
|
||||
return 0;
|
||||
|
||||
case CONFIG_KEY_STRING:
|
||||
len = strlen(value);
|
||||
s = malloc(len);
|
||||
if (s == NULL)
|
||||
return -1;
|
||||
memcpy(s, value, len - 1);
|
||||
s[len - 1] = '\0';
|
||||
*(char **)key->data = s;
|
||||
return 0;
|
||||
|
||||
case CONFIG_KEY_BOOL:
|
||||
if (strcmp(value, "false\n") == 0)
|
||||
*(int *)key->data = 0;
|
||||
else if (strcmp(value, "true\n") == 0)
|
||||
*(int *)key->data = 1;
|
||||
else {
|
||||
fprintf(stderr, "invalid bool: %s\n", value);
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
|
||||
default:
|
||||
assert(0);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
parse_config_file(const char *path,
|
||||
const struct config_section *sections, int num_sections,
|
||||
void *data)
|
||||
{
|
||||
FILE *fp;
|
||||
char line[512], *p;
|
||||
const struct config_section *current = NULL;
|
||||
int i;
|
||||
|
||||
fp = fopen(path, "r");
|
||||
if (fp == NULL) {
|
||||
fprintf(stderr, "couldn't open %s\n", path);
|
||||
return -1;
|
||||
}
|
||||
|
||||
while (fgets(line, sizeof line, fp)) {
|
||||
if (line[0] == '#' || line[0] == '\n') {
|
||||
continue;
|
||||
} if (line[0] == '[') {
|
||||
p = strchr(&line[1], ']');
|
||||
if (!p || p[1] != '\n') {
|
||||
fprintf(stderr, "malformed "
|
||||
"section header: %s\n", line);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
if (current && current->done)
|
||||
current->done(data);
|
||||
p[0] = '\0';
|
||||
for (i = 0; i < num_sections; i++) {
|
||||
if (strcmp(sections[i].name, &line[1]) == 0) {
|
||||
current = §ions[i];
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (i == num_sections)
|
||||
current = NULL;
|
||||
} else if (p = strchr(line, '='), p != NULL) {
|
||||
if (current == NULL)
|
||||
continue;
|
||||
p[0] = '\0';
|
||||
for (i = 0; i < current->num_keys; i++) {
|
||||
if (strcmp(current->keys[i].name, line) == 0) {
|
||||
if (handle_key(¤t->keys[i], &p[1]) < 0) {
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
fprintf(stderr, "malformed config line: %s\n", line);
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
if (current && current->done)
|
||||
current->done(data);
|
||||
|
||||
fclose(fp);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
char *
|
||||
config_file_path(const char *name)
|
||||
{
|
||||
const char dotconf[] = "/.config/";
|
||||
const char *config_dir;
|
||||
const char *home_dir;
|
||||
char *path;
|
||||
size_t size;
|
||||
|
||||
config_dir = getenv("XDG_CONFIG_HOME");
|
||||
if (!config_dir) {
|
||||
home_dir = getenv("HOME");
|
||||
if (!home_dir) {
|
||||
fprintf(stderr, "HOME is not set, using cwd.\n");
|
||||
return strdup(name);
|
||||
}
|
||||
|
||||
size = strlen(home_dir) + sizeof dotconf + strlen(name);
|
||||
path = malloc(size);
|
||||
if (!path)
|
||||
return NULL;
|
||||
|
||||
snprintf(path, size, "%s%s%s", home_dir, dotconf, name);
|
||||
return path;
|
||||
}
|
||||
|
||||
size = strlen(config_dir) + 1 + strlen(name) + 1;
|
||||
path = malloc(size);
|
||||
if (!path)
|
||||
return NULL;
|
||||
|
||||
snprintf(path, size, "%s/%s", config_dir, name);
|
||||
return path;
|
||||
}
|
||||
@@ -0,0 +1,54 @@
|
||||
/*
|
||||
* Copyright © 2008 Kristian Høgsberg
|
||||
*
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef CONFIGPARSER_H
|
||||
#define CONFIGPARSER_H
|
||||
|
||||
enum {
|
||||
CONFIG_KEY_INTEGER,
|
||||
CONFIG_KEY_STRING,
|
||||
CONFIG_KEY_BOOL
|
||||
};
|
||||
|
||||
struct config_key {
|
||||
const char *name;
|
||||
int type;
|
||||
void *data;
|
||||
};
|
||||
|
||||
struct config_section {
|
||||
const char *name;
|
||||
const struct config_key *keys;
|
||||
int num_keys;
|
||||
void (*done)(void *data);
|
||||
};
|
||||
|
||||
int
|
||||
parse_config_file(const char *path,
|
||||
const struct config_section *sections, int num_sections,
|
||||
void *data);
|
||||
|
||||
char *
|
||||
config_file_path(const char *name);
|
||||
|
||||
#endif /* CONFIGPARSER_H */
|
||||
|
||||
Reference in New Issue
Block a user