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snes9x/conffile.cpp
OV2 851839cdea faster config file saving
2010-09-30 23:43:05 +02:00

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/***********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2002 - 2004 Matthew Kendora
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com)
(c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
Nach (n-a-c-h@users.sourceforge.net),
zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
(c) Copyright 2009 - 2010 BearOso,
OV2
BS-X C emulator code
(c) Copyright 2005 - 2006 Dreamer Nom,
zones
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
Nach,
zsKnight (zsknight@zsnes.com)
C4 C++ code
(c) Copyright 2003 - 2006 Brad Jorsch,
Nach
DSP-1 emulator code
(c) Copyright 1998 - 2006 _Demo_,
Andreas Naive (andreasnaive@gmail.com),
Gary Henderson,
Ivar (ivar@snes9x.com),
John Weidman,
Kris Bleakley,
Matthew Kendora,
Nach,
neviksti (neviksti@hotmail.com)
DSP-2 emulator code
(c) Copyright 2003 John Weidman,
Kris Bleakley,
Lord Nightmare (lord_nightmare@users.sourceforge.net),
Matthew Kendora,
neviksti
DSP-3 emulator code
(c) Copyright 2003 - 2006 John Weidman,
Kris Bleakley,
Lancer,
z80 gaiden
DSP-4 emulator code
(c) Copyright 2004 - 2006 Dreamer Nom,
John Weidman,
Kris Bleakley,
Nach,
z80 gaiden
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight,
pagefault (pagefault@zsnes.com),
Kris Bleakley
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code used in 1.39-1.51
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
SPC7110 and RTC C++ emulator code used in 1.52+
(c) Copyright 2009 byuu,
neviksti
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive,
John Weidman
S-RTC C emulator code
(c) Copyright 2001 - 2006 byuu,
John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather,
John Weidman,
Kris Bleakley,
Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 _Demo_,
pagefault,
zsKnight
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar,
Gary Henderson,
John Weidman
Sound emulator code used in 1.5-1.51
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
Sound emulator code used in 1.52+
(c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
2xSaI filter
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
HQ2x, HQ3x, HQ4x filters
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
NTSC filter
(c) Copyright 2006 - 2007 Shay Green
GTK+ GUI code
(c) Copyright 2004 - 2010 BearOso
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
(c) Copyright 2009 - 2010 OV2
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2010 zones
Specific ports contains the works of other authors. See headers in
individual files.
Snes9x homepage: http://www.snes9x.com/
Permission to use, copy, modify and/or distribute Snes9x in both binary
and source form, for non-commercial purposes, is hereby granted without
fee, providing that this license information and copyright notice appear
with all copies and any derived work.
This software is provided 'as-is', without any express or implied
warranty. In no event shall the authors be held liable for any damages
arising from the use of this software or it's derivatives.
Snes9x is freeware for PERSONAL USE only. Commercial users should
seek permission of the copyright holders first. Commercial use includes,
but is not limited to, charging money for Snes9x or software derived from
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
using Snes9x as a promotion for your commercial product.
The copyright holders request that bug fixes and improvements to the code
should be forwarded to them so everyone can benefit from the modifications
in future versions.
Super NES and Super Nintendo Entertainment System are trademarks of
Nintendo Co., Limited and its subsidiary companies.
***********************************************************************************/
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <string>
#include "conffile.h"
#ifdef __WIN32__
#define snprintf _snprintf // needs ANSI compliant name
#endif
#define SORT_SECTIONS_BY_SIZE // output
using namespace std;
bool ConfigFile::defaultAutoAdd = false;
bool ConfigFile::niceAlignment = false;
bool ConfigFile::showComments = true;
bool ConfigFile::alphaSort = true;
bool ConfigFile::timeSort = false;
static ConfigFile* curConfigFile = NULL; // for section_then_key_less
ConfigFile::ConfigFile(void) {
Clear();
}
void ConfigFile::Clear(void){
data.clear();
sectionSizes.ClearSections();
linectr = 0;
}
bool ConfigFile::LoadFile(const char *filename){
STREAM s;
bool ret=false;
const char *n, *n2;
if((s=OPEN_STREAM(filename, "r"))){
n=filename;
n2=strrchr(n, '/'); if(n2!=NULL) n=n2+1;
n2=strrchr(n, '\\'); if(n2!=NULL) n=n2+1;
LoadFile(new fReader(s), n);
CLOSE_STREAM(s);
ret = true;
} else {
fprintf(stderr, "Couldn't open conffile ");
perror(filename);
}
return ret;
}
void ConfigFile::LoadFile(Reader *r, const char *name){
curConfigFile = this;
string l, key, val;
string section;
string comment;
int i, line, line2;
bool eof;
line=line2=0;
section.clear();
do {
line=line2++;
l=r->getline(eof);
ConfigEntry::trim(l);
if(l.size()==0) continue;
if(l[0]=='#' || l[0]==';'){
// comment
continue;
}
if(l[0]=='['){
if(*l.rbegin()!=']'){
if(name) fprintf(stderr, "%s:", name);
fprintf(stderr, "[%d]: Ignoring invalid section header\n", line);
continue;
}
section.assign(l, 1, l.size()-2);
continue;
}
while(*l.rbegin()=='\\'){
l.erase(l.size()-1);
line2++;
val=r->getline(eof);
if(eof){
fprintf(stderr, "Unexpected EOF reading config file");
if(name) fprintf(stderr, " '%s'", name);
fprintf(stderr, "\n");
return;
}
ConfigEntry::trim(val);
l+=val;
}
i=l.find('=');
if(i<0){
if(name) fprintf(stderr, "%s:", name);
fprintf(stderr, "[%d]: Ignoring invalid entry\n", line);
continue;
}
key=l.substr(0,i); ConfigEntry::trim(key);
val=l.substr(i+1); comment = ConfigEntry::trimCommented(val);
if(val[0]=='"' && *val.rbegin()=='"') val=val.substr(1, val.size()-2);
ConfigEntry e(line, section, key, val);
e.comment = comment;
if(data.erase(e))
sectionSizes.DecreaseSectionSize(e.section);
data.insert(e);
sectionSizes.IncreaseSectionSize(e.section);
} while(!eof);
curConfigFile = NULL;
}
bool ConfigFile::SaveTo(const char *filename){
string section;
FILE *fp;
if((fp=fopen(filename, "w"))==NULL){
fprintf(stderr, "Couldn't write conffile ");
perror(filename);
return false;
}
curConfigFile = this;
section.clear();
set<ConfigEntry, ConfigEntry::line_less> tmp;
fprintf(fp, "# Config file output by snes9x\n");
time_t t=time(NULL);
fprintf(fp, "# %s", ctime(&t));
#ifdef SORT_SECTIONS_BY_SIZE
std::set<ConfigEntry, ConfigEntry::section_then_key_less> data2;
for(set<ConfigEntry, ConfigEntry::key_less>::iterator k=data.begin(); k!=data.end(); k++){
ConfigEntry e (k->line, k->section, k->key, k->val); e.comment = k->comment;
data2.insert(e);
}
#else
#define data2 data
#define section_then_key_less key_less
#endif
for(set<ConfigEntry, ConfigEntry::section_then_key_less>::iterator j=data2.begin(); ; j++){
if(j==data2.end() || j->section!=section){
if(!tmp.empty()){
fprintf(fp, "\n[%s]\n", section.c_str());
unsigned int maxKeyLen=0, maxValLen=0; int maxLeftDiv=0; int maxRightDiv=-1;
if(niceAlignment){
for(set<ConfigEntry, ConfigEntry::line_less>::iterator i=tmp.begin(); i!=tmp.end(); i++){
int len3 = i->key.find_last_of(':');
maxRightDiv = MAX(maxRightDiv, len3);
len3 = i->key.length() - len3;
maxLeftDiv = MAX(maxLeftDiv, len3);
maxKeyLen = MAX(maxKeyLen, i->key.length()+3);
if(showComments){
string o=i->val; ConfigEntry::trim(o);
unsigned int len = o.length();
for(signed int j=len-1;j>=0;j--) if(o.at(j)=='#') len++;
if(o!=i->val) len+=2;
maxValLen = MAX(maxValLen, len);
}
}
if(maxValLen>48) maxValLen=48; // limit spacing
}
for(set<ConfigEntry, ConfigEntry::line_less>::iterator i=tmp.begin(); i!=tmp.end(); i++){
string o=i->val; ConfigEntry::trim(o);
if(o!=i->val) o="\""+i->val+"\"";
int off=0, len3=0;
for(;;){
int k=o.find('#',off);
if(k>=0){
o.insert(k,1,'#'); // re-double any comment characters
off=k+2;
if(off<(int)o.length()) continue;
}
break;
}
if(niceAlignment){
len3=i->key.find_last_of(':');
int len3sub=0;
if(len3 < maxRightDiv){
for(int j=len3;j<maxRightDiv;j++) fputc(' ',fp);
len3sub=maxRightDiv-len3;
len3 = maxRightDiv;
}
len3+=maxLeftDiv-i->key.length();
for(unsigned int j=i->key.length()+len3+3;j<maxKeyLen;j++) fputc(' ',fp);
fprintf(fp, "%s", i->key.c_str());
for(int j=0;j<len3-len3sub;j++) fputc(' ',fp);
fprintf(fp, " = %s", o.c_str());
} else
fprintf(fp, "%s = %s", i->key.c_str(), o.c_str());
if(showComments && !i->comment.empty()){
if(niceAlignment) for(unsigned int j=o.length();j<maxValLen;j++) fputc(' ',fp);
fprintf(fp, " # %s", i->comment.c_str());
}
fprintf(fp, "\n");
}
}
if(j==data2.end()) break;
section=j->section;
tmp.clear();
}
tmp.insert(*j);
}
curConfigFile = NULL;
#undef data2
#undef section_then_key_less
if(ferror(fp))
{
fp = fp;
}
fclose(fp);
return true;
}
/***********************************************/
string ConfigFile::Get(const char *key){
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
i=data.find(ConfigEntry(key));
i->used=true;
return i->val;
}
bool ConfigFile::Has(const char *key){
return data.find(ConfigEntry(key))!=data.end();
}
// exists and isn't completely empty (any side-effects are intentional)
bool ConfigFile::Exists(const char *key){
const char* val = GetString(key, NULL);
return val && *val;
}
string ConfigFile::GetString(const char *key, string def){
if(!Exists(key))
return def;
return Get(key);
}
char *ConfigFile::GetString(const char *key, char *out, uint32 outlen){
if(!Exists(key)) return NULL;
ZeroMemory(out, outlen);
string o=Get(key);
if(outlen>0){
outlen--;
if(o.size()<outlen) outlen=o.size();
memcpy(out, o.data(), outlen);
}
return out;
}
const char *ConfigFile::GetString(const char *key, const char *def){
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
i=data.find(ConfigEntry(key));
if(i==data.end())
{
if(defaultAutoAdd) SetString(key,""); //SetString(key, def?def:"");
return def;
}
i->used=true;
// This should be OK, until this key gets removed
const std::string &iVal = i->val;
return iVal.c_str();
}
char *ConfigFile::GetStringDup(const char *key, const char *def){
const char *c=GetString(key, def);
if(c==NULL) return NULL;
return strdup(c);
}
bool ConfigFile::SetString(const char *key, string val, const char *comment){
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
bool ret=false;
ConfigEntry e(key, val);
if(comment && *comment) e.comment = comment;
e.used=true;
i=data.find(e);
if(i!=data.end()){
e.line=i->line;
data.erase(e);
sectionSizes.DecreaseSectionSize(e.section);
ret=true;
}
if((i==data.end() && (!alphaSort || timeSort)) || (!alphaSort && timeSort))
e.line = linectr++;
data.insert(e);
sectionSizes.IncreaseSectionSize(e.section);
return ret;
}
int32 ConfigFile::GetInt(const char *key, int32 def, bool *bad){
if(bad) *bad=false;
if(!Exists(key))
return def;
char *c;
int32 i;
string o=Get(key);
i=strtol(o.c_str(), &c, 10);
if(c!=NULL && *c!='\0'){
i=def;
if(bad) *bad=true;
}
return i;
}
bool ConfigFile::SetInt(const char *key, int32 val, const char *comment){
char buf[20];
snprintf(buf, sizeof(buf), "%d", (int)val);
return SetString(key, buf, comment);
}
uint32 ConfigFile::GetUInt(const char *key, uint32 def, int base, bool *bad){
if(bad) *bad=false;
if(!Exists(key))
return def;
if(base!=8 && base!=10 && base!=16) base=0;
char *c;
uint32 i;
string o=Get(key);
i=strtol(o.c_str(), &c, base);
if(c!=NULL && *c!='\0'){
i=def;
if(bad) *bad=true;
}
return i;
}
bool ConfigFile::SetUInt(const char *key, uint32 val, int base, const char *comment){
char buf[20];
switch(base){
case 10:
default:
snprintf(buf, sizeof(buf), "%u", (unsigned int)val);
break;
case 8:
snprintf(buf, sizeof(buf), "%#o", (unsigned int)val);
break;
case 16:
snprintf(buf, sizeof(buf), "%#x", (unsigned int)val);
break;
}
return SetString(key, buf, comment);
}
bool ConfigFile::GetBool(const char *key, bool def, bool *bad){
if(bad) *bad=false;
if(!Exists(key))
return def;
string o=Get(key);
const char *c=o.c_str();
if(!strcasecmp(c, "true") || !strcasecmp(c, "1") || !strcasecmp(c, "yes") || !strcasecmp(c, "on")) return true;
if(!strcasecmp(c, "false") || !strcasecmp(c, "0") || !strcasecmp(c, "no") || !strcasecmp(c, "off")) return false;
if(bad) *bad=true;
return def;
}
bool ConfigFile::SetBool(const char *key, bool val, const char *true_val, const char *false_val, const char *comment){
return SetString(key, val?true_val:false_val, comment);
}
const char* ConfigFile::GetComment(const char *key)
{
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
i=data.find(ConfigEntry(key));
if(i==data.end())
return NULL;
// This should be OK, until this key gets removed
const std::string &iCom = i->comment;
return iCom.c_str();
}
bool ConfigFile::DeleteKey(const char *key){
ConfigEntry e = ConfigEntry(key);
if(data.erase(e)) {
sectionSizes.DecreaseSectionSize(e.section);
return true;
}
return false;
}
/***********************************************/
bool ConfigFile::DeleteSection(const char *section){
set<ConfigEntry, ConfigEntry::key_less>::iterator s, e;
for(s=data.begin(); s!=data.end() && s->section!=section; s++) ;
if(s==data.end()) return false;
for(e=s; e!=data.end() && e->section==section; e++) ;
data.erase(s, e);
sectionSizes.DeleteSection(section);
return true;
}
ConfigFile::secvec_t ConfigFile::GetSection(const char *section){
secvec_t v;
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
v.clear();
for(i=data.begin(); i!=data.end(); i++){
if(i->section!=section) continue;
v.push_back(std::pair<string,string>(i->key, i->val));
}
return v;
}
int ConfigFile::GetSectionSize(const std::string section){
return sectionSizes.GetSectionSize(section);
}
// Clears all key-value pairs that didn't receive a "Get" or "Exists" command
void ConfigFile::ClearUnused()
{
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
again:
for(i=data.begin(); i!=data.end(); i++){
if(!i->used){
data.erase(i);
goto again;
}
}
}
void ConfigFile::ClearLines()
{
set<ConfigEntry, ConfigEntry::key_less>::iterator i;
for(i=data.begin(); i!=data.end(); i++){
*(const_cast<int*>(&i->line)) = -1;
}
}
bool ConfigFile::ConfigEntry::section_then_key_less::operator()(const ConfigEntry &a, const ConfigEntry &b) {
if(curConfigFile && a.section!=b.section){
const int sva = curConfigFile->GetSectionSize(a.section);
const int svb = curConfigFile->GetSectionSize(b.section);
if(sva<svb) return true;
if(sva>svb) return false;
return a.section<b.section;
}
return a.key<b.key;
}
void ConfigFile::SetDefaultAutoAdd(bool autoAdd)
{
defaultAutoAdd = autoAdd;
}
void ConfigFile::SetNiceAlignment(bool align)
{
niceAlignment = align;
}
void ConfigFile::SetShowComments(bool show)
{
showComments = show;
}
void ConfigFile::SetAlphaSort(bool sort)
{
alphaSort = sort;
}
void ConfigFile::SetTimeSort(bool sort)
{
timeSort = sort;
}
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