mirror of
https://github.com/libretro/scummvm.git
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387 lines
7.3 KiB
C++
387 lines
7.3 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001/2002 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "stdafx.h"
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#include "config-file.h"
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#include "scumm.h"
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#define MAXLINELEN 256
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#define xfree(p) {if (p) free(p);}
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static char *ltrim(char *t)
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{
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for (; *t && (*t == ' '); t++);
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return t;
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}
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static char *rtrim(char *t)
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{
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int l;
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for (l = strlen(t) - 1; l; l--) {
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if (t[l] == ' ') {
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*t = 0;
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} else {
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return t;
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}
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}
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return t;
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}
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class hashconfig {
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public:
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hashconfig (const char *);
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~hashconfig ();
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bool is_domain(const char *) const;
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const char *get(const char *) const;
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const char *set(const char *, const char *);
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const char *getdomain() const;
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void flush(FILE *) const;
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void rename(const char *);
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void merge(const hashconfig *);
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private:
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char *domain;
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char **keys, **values;
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int nkeys;
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};
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hashconfig::hashconfig (const char *dom):domain(dom ? strdup(dom) : 0),
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keys(0), values(0), nkeys(0)
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{
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}
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hashconfig::~hashconfig () {
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xfree(domain);
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}
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bool hashconfig::is_domain(const char *d) const
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{
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return d && domain && !strcmp(d, domain);
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}
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const char *hashconfig::get(const char *key) const
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{
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int i;
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for (i = 0; i < nkeys; i++) {
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if (!strcmp(key, keys[i])) {
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return values[i];
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}
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}
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return 0;
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}
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const char *hashconfig::set(const char *key, const char *value)
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{
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int i;
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for (i = 0; i < nkeys; i++) {
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if (!strcmp(key, keys[i])) {
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xfree(values[i]);
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return values[i] = value ? strdup(value) : 0;
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}
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}
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nkeys++;
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keys = (char **)realloc(keys, nkeys * sizeof(char *));
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values = (char **)realloc(values, nkeys * sizeof(char *));
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keys[nkeys - 1] = strdup(key);
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return values[nkeys - 1] = value ? strdup(value) : 0;
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}
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const char *hashconfig::getdomain() const
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{
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return domain;
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}
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void hashconfig::flush(FILE *cfg_file) const
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{
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int i;
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if (!domain)
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return;
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fprintf(cfg_file, "[%s]\n", domain);
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for (i = 0; i < nkeys; i++) {
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if (values[i]) {
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fprintf(cfg_file, "%s=%s\n", keys[i], values[i]);
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}
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}
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fprintf(cfg_file, "\n");
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}
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void hashconfig::rename(const char *d)
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{
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xfree(domain);
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domain = d ? strdup(d) : 0;
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}
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void hashconfig::merge(const hashconfig *h)
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{
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int i;
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for (i = 0; i < h->nkeys; i++) {
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set(h->keys[i], h->values[i]);
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}
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}
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//<2F>The config-class itself.
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Config::Config (const char *cfg, const char *d)
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: filename(strdup(cfg)), domain(d ? strdup(d) : 0), hash(0), ndomains(0), willwrite(false)
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{
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FILE *cfg_file;
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char t[MAXLINELEN];
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if (!(cfg_file = fopen(cfg, "r"))) {
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debug(1, "Unable to open configuration file: %s.\n", filename);
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} else {
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while (!feof(cfg_file)) {
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if (!fgets(t, MAXLINELEN, cfg_file))
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continue;
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if (t[0] != '#') {
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if (t[0] == '[') {
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// It's a new domain which begins here.
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char *p = strchr(t, ']');
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if (!p) {
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debug(1, "Config file buggy: no ] at the end of the domain name.\n");
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} else {
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*p = 0;
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set_domain(t + 1);
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}
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} else {
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// It's a new key in the domain.
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if (!domain) {
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debug(1, "Config file buggy: we have a key without a domain first.\n");
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}
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char *p = strchr(t, '\n');
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if (p)
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*p = 0;
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p = strchr(t, '\r');
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if (p)
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*p = 0;
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if (!(p = strchr(t, '='))) {
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if (strlen(t))
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debug(1, "Config file buggy: there is junk: %s\n", t);
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} else {
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char *key, *value;
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*p = 0;
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key = ltrim(rtrim(t));
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value = ltrim(p + 1);
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set(key, value);
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}
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}
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}
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}
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set_domain(d);
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fclose(cfg_file);
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}
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}
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Config::~Config () {
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int i;
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xfree(filename);
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xfree(domain);
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for (i = 0; i < ndomains; i++) {
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delete hash[i];
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}
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xfree(hash);
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}
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const char *Config::get(const char *key, const char *d) const
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{
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int i;
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if (!d)
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d = domain;
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for (i = 0; i < ndomains; i++) {
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if (hash[i]->is_domain(d)) {
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return hash[i]->get(key);
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}
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}
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return 0;
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}
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const int Config::getInt(const char *key, int def, const char *d) const
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{
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const char *value = get(key, d);
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if (value)
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return atoi(value);
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return def;
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}
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const bool Config::getBool(const char *key, bool def, const char *d) const
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{
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const char *value = get(key, d);
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if (value)
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return !scumm_stricmp(value, "true");
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return def;
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}
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const char *Config::set(const char *key, const char *value, const char *d)
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{
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int i;
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if (!d)
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d = domain;
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for (i = 0; i < ndomains; i++) {
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if (hash[i]->is_domain(d)) {
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return hash[i]->set(key, value);
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}
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}
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ndomains++;
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hash = (hashconfig **)realloc(hash, ndomains * sizeof(hashconfig *));
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hash[ndomains - 1] = new hashconfig (d);
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return hash[ndomains - 1]->set(key, value);
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}
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const char *Config::set(const char *key, int value_i, const char *d)
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{
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char value[MAXLINELEN];
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sprintf(value, "%i", value_i);
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return set(key, value, d);
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}
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const char *Config::set(const char *key, bool value_b, const char *d)
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{
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const char *value = value_b ? "true" : "false";
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return set(key, value, d);
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}
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void Config::set_domain(const char *d)
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{
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int i;
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xfree(domain);
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domain = d ? strdup(d) : 0;
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for (i = 0; i < ndomains; i++) {
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if (hash[i]->is_domain(domain))
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return;
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}
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ndomains++;
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hash = (hashconfig **)realloc(hash, ndomains * sizeof(hashconfig *));
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hash[ndomains - 1] = new hashconfig (domain);
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}
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void Config::flush() const
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{
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FILE *cfg_file;
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int i;
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if (!willwrite)
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return;
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if (!(cfg_file = fopen(filename, "w"))) {
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debug(1, "Unable to write configuration file: %s.\n", filename);
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} else {
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for (i = 0; i < ndomains; i++) {
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hash[i]->flush(cfg_file);
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}
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fclose(cfg_file);
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}
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}
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void Config::rename_domain(const char *d)
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{
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int i, index = -1;
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for (i = 0; i < ndomains; i++) {
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if (hash[i]->is_domain(d)) {
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index = i;
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}
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}
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for (i = 0; i < ndomains; i++) {
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if (hash[i]->is_domain(domain)) {
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if (index >= 0) {
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hash[i]->merge(hash[index]);
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hash[index]->rename(0);
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rename_domain(d);
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} else {
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hash[i]->rename(d);
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set_domain(d);
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}
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}
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}
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}
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void Config::delete_domain(const char *d)
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{
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int i;
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for (i = 0; i < ndomains; i++) {
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if (hash[i]->is_domain(d)) {
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hash[i]->rename(0);
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}
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}
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}
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void Config::change_filename(const char *f)
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{
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xfree(filename);
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filename = f ? strdup(f) : 0;
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}
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void Config::merge_config(const Config *c)
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{
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int i, j;
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bool found;
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for (i = 0; i < c->ndomains; i++) {
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found = false;
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for (j = 0; j < ndomains; j++) {
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if (hash[j]->is_domain(c->hash[i]->getdomain())) {
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hash[j]->merge(c->hash[i]);
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found = true;
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break;
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}
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}
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if (!found) {
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ndomains++;
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hash = (hashconfig **)realloc(hash, ndomains * sizeof(hashconfig *));
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hash[ndomains - 1] = new hashconfig (domain);
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hash[ndomains - 1]->merge(c->hash[i]);
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}
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}
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}
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void Config::set_writing(bool w)
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{
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willwrite = w;
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}
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