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conf: use the tokenizer library

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This commit is contained in:
Max Kellermann
2009-07-19 15:11:37 +02:00
parent 1745e68795
commit 16ff44ad30
2 changed files with 93 additions and 73 deletions
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150
src/conf.c
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@@ -19,7 +19,7 @@
#include "conf.h"
#include "utils.h"
#include "buffer2array.h"
#include "tokenizer.h"
#include "path.h"
#include <glib.h>
@@ -36,10 +36,6 @@
#define MAX_STRING_SIZE MPD_PATH_MAX+80
#define CONF_COMMENT '#'
#define CONF_BLOCK_BEGIN "{"
#define CONF_BLOCK_END "}"
#define CONF_LINE_TOKEN_MAX 3
struct config_entry {
const char *const name;
@@ -250,60 +246,59 @@ config_read_block(FILE *fp, int *count, char *string)
{
struct config_param *ret = config_new_param(NULL, *count);
int i;
int numberOfArgs;
int argsMinusComment;
while (true) {
char *line;
const char *name, *value;
GError *error = NULL;
while (fgets(string, MAX_STRING_SIZE, fp)) {
char *array[CONF_LINE_TOKEN_MAX] = { NULL };
line = fgets(string, MAX_STRING_SIZE, fp);
if (line == NULL)
g_error("Expected '}' before end-of-file");
(*count)++;
numberOfArgs = buffer2array(string, array, CONF_LINE_TOKEN_MAX);
for (i = 0; i < numberOfArgs; i++) {
if (array[i][0] == CONF_COMMENT)
break;
}
argsMinusComment = i;
if (0 == argsMinusComment) {
line = g_strchug(line);
if (*line == 0 || *line == CONF_COMMENT)
continue;
if (*line == '}') {
/* end of this block; return from the function
(and from this "while" loop) */
line = g_strchug(line + 1);
if (*line != 0 && *line != CONF_COMMENT)
g_error("line %i: Unknown tokens after '}'",
*count);
return ret;
}
if (1 == argsMinusComment &&
0 == strcmp(array[0], CONF_BLOCK_END)) {
break;
/* parse name and value */
name = tokenizer_next_word(&line, &error);
if (name == NULL) {
assert(*line != 0);
g_error("line %i: %s", *count, error->message);
}
if (2 != argsMinusComment) {
g_error("improperly formatted config file at line %i:"
" %s\n", *count, string);
value = tokenizer_next_string(&line, &error);
if (value == NULL) {
if (*line == 0)
g_error("line %i: Value missing", *count);
else
g_error("line %i: %s", *count, error->message);
}
if (0 == strcmp(array[0], CONF_BLOCK_BEGIN) ||
0 == strcmp(array[1], CONF_BLOCK_BEGIN) ||
0 == strcmp(array[0], CONF_BLOCK_END) ||
0 == strcmp(array[1], CONF_BLOCK_END)) {
g_error("improperly formatted config file at line %i: %s "
"in block beginning at line %i\n",
*count, string, ret->line);
}
if (*line != 0 && *line != CONF_COMMENT)
g_error("line %i: Unknown tokens after value", *count);
config_add_block_param(ret, array[0], array[1], *count);
config_add_block_param(ret, name, value, *count);
}
return ret;
}
void config_read_file(const char *file)
{
FILE *fp;
char string[MAX_STRING_SIZE + 1];
int i;
int numberOfArgs;
int argsMinusComment;
int count = 0;
struct config_entry *entry;
struct config_param *param;
@@ -316,48 +311,73 @@ void config_read_file(const char *file)
}
while (fgets(string, MAX_STRING_SIZE, fp)) {
char *array[CONF_LINE_TOKEN_MAX] = { NULL };
char *line;
const char *name, *value;
GError *error = NULL;
count++;
numberOfArgs = buffer2array(string, array, CONF_LINE_TOKEN_MAX);
for (i = 0; i < numberOfArgs; i++) {
if (array[i][0] == CONF_COMMENT)
break;
}
argsMinusComment = i;
if (0 == argsMinusComment) {
line = g_strchug(string);
if (*line == 0 || *line == CONF_COMMENT)
continue;
/* the first token in each line is the name, followed
by either the value or '{' */
name = tokenizer_next_word(&line, &error);
if (name == NULL) {
assert(*line != 0);
g_error("line %i: %s", count, error->message);
}
if (2 != argsMinusComment) {
g_error("improperly formatted config file at line %i:"
" %s\n", count, string);
}
/* get the definition of that option, and check the
"repeatable" flag */
entry = config_entry_get(array[0]);
entry = config_entry_get(name);
if (entry == NULL)
g_error("unrecognized parameter in config file at "
"line %i: %s\n", count, string);
"line %i: %s\n", count, name);
if (entry->params != NULL && !entry->repeatable) {
param = entry->params->data;
g_error("config parameter \"%s\" is first defined on "
"line %i and redefined on line %i\n",
array[0], param->line, count);
name, param->line, count);
}
/* now parse the block or the value */
if (entry->block) {
if (0 != strcmp(array[1], CONF_BLOCK_BEGIN)) {
g_error("improperly formatted config file at "
"line %i: %s\n", count, string);
}
/* it's a block, call config_read_block() */
if (*line != '{')
g_error("line %i: '{' expected", count);
line = g_strchug(line + 1);
if (*line != 0 && *line != CONF_COMMENT)
g_error("line %i: Unknown tokens after '{'",
count);
param = config_read_block(fp, &count, string);
} else
param = config_new_param(array[1], count);
} else {
/* a string value */
value = tokenizer_next_string(&line, &error);
if (value == NULL) {
if (*line == 0)
g_error("line %i: Value missing",
count);
else
g_error("line %i: %s", count,
error->message);
}
if (*line != 0 && *line != CONF_COMMENT)
g_error("line %i: Unknown tokens after value",
count);
param = config_new_param(value, count);
}
entry->params = g_slist_append(entry->params, param);
}