False.Genesis 1e5b463434 * implemented in-runtime script modification. every script is now stored as list #DEFSCRIPT::SCRIPTS::scriptname
* added little helper func "createdef"
* fixed crash if "listscript" was passed a name of a nonexisting script
* removed obsoelete file: TypeStorage.cpp, it was excluded from build since added.
2007-10-30 18:14:19 +00:00

1167 lines
34 KiB
C++

#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <iostream>
#include <fstream>
#include <sstream>
#include <stdarg.h>
#include "VarSet.h"
#include "DefScript.h"
using namespace DefScriptTools;
#define SN_ONLOAD "?onload?"
#define SCRIPT_NAMESPACE "DEFSCRIPT::SCRIPT::"
enum DefScriptBlockType
{
BLOCK_IF,
BLOCK_LOOP
};
// --- SECTION FOR SCRIPT PACKAGES ---
DefScriptPackage::DefScriptPackage()
{
SetLog(printf);
SetDebugLog(printf);
SetErrorLog(printf);
hLogfile.open("DefScriptLog.txt",std::ios_base::out);
hLogfile << "DefScript engine execution log, compilation date: " __DATE__ " " __TIME__ "\n\n" ;
_eventmgr=new DefScript_DynamicEventMgr(this);
_InitFunctions();
# ifdef USING_DEFSCRIPT_EXTENSIONS
_InitDefScriptInterface();
# endif
}
DefScriptPackage::~DefScriptPackage()
{
if(_eventmgr)
delete _eventmgr;
Clear();
hLogfile.close();
}
void DefScriptPackage::Log(const char* fmt,...)
{
va_list ap;
va_start(ap, fmt);
(*_slog)(fmt,ap);
va_end(ap);
}
void DefScriptPackage::DebugLog(const char* fmt,...)
{
va_list ap;
va_start(ap, fmt);
(*_sdebuglog)(fmt,ap);
va_end(ap);
}
void DefScriptPackage::ErrorLog(const char* fmt,...)
{
va_list ap;
va_start(ap, fmt);
(*_serrorlog)(fmt,ap);
va_end(ap);
}
void DefScriptPackage::SetParentMethod(void *p)
{
parentMethod = p;
}
void DefScriptPackage::Clear(void)
{
for(std::map<std::string,DefScript*>::iterator i = Script.begin(); i != Script.end(); i++)
{
lists.Unlink(SCRIPT_NAMESPACE + i->first); // remove name from the list storage
delete i->second; // delete each script
}
Script.empty();
}
void DefScriptPackage::_InitFunctions(void)
{
AddFunc("out",&DefScriptPackage::func_out);
AddFunc("set",&DefScriptPackage::func_set,false);
AddFunc("default",&DefScriptPackage::func_default,false);
AddFunc("unset",&DefScriptPackage::func_unset);
AddFunc("shdn",&DefScriptPackage::func_shdn,false);
AddFunc("loaddef",&DefScriptPackage::func_loaddef);
AddFunc("reloaddef",&DefScriptPackage::func_reloaddef);
AddFunc("createdef",&DefScriptPackage::func_createdef);
AddFunc("unloaddef",&DefScriptPackage::func_unloaddef);
AddFunc("setscriptpermission",&DefScriptPackage::func_setscriptpermission);
AddFunc("toint",&DefScriptPackage::func_toint);
AddFunc("add",&DefScriptPackage::func_add);
AddFunc("sub",&DefScriptPackage::func_sub);
AddFunc("mul",&DefScriptPackage::func_mul);
AddFunc("div",&DefScriptPackage::func_div);
AddFunc("mod",&DefScriptPackage::func_mod);
AddFunc("pow",&DefScriptPackage::func_pow);
AddFunc("bitor",&DefScriptPackage::func_bitor);
AddFunc("bitand",&DefScriptPackage::func_bitand);
AddFunc("bitxor",&DefScriptPackage::func_bitxor);
AddFunc("addevent",&DefScriptPackage::func_addevent);
AddFunc("removeevent",&DefScriptPackage::func_removeevent);
AddFunc("abs",&DefScriptPackage::func_abs);
AddFunc("greater",&DefScriptPackage::func_bigger);
AddFunc("greater_eq",&DefScriptPackage::func_bigger_eq);
AddFunc("bigger",&DefScriptPackage::func_bigger);
AddFunc("bigger_eq",&DefScriptPackage::func_bigger_eq);
AddFunc("equal",&DefScriptPackage::func_equal);
AddFunc("isset",&DefScriptPackage::func_isset);
AddFunc("not",&DefScriptPackage::func_not);
AddFunc("smaller",&DefScriptPackage::func_smaller);
AddFunc("smaller_eq",&DefScriptPackage::func_smaller_eq);
AddFunc("strlen",&DefScriptPackage::func_strlen);
AddFunc("tohex",&DefScriptPackage::func_tohex);
AddFunc("and",&DefScriptPackage::func_and);
AddFunc("or",&DefScriptPackage::func_or);
AddFunc("xor",&DefScriptPackage::func_xor);
AddFunc("substr",&DefScriptPackage::func_substr);
AddFunc("uppercase",&DefScriptPackage::func_uppercase);
AddFunc("lowercase",&DefScriptPackage::func_lowercase);
AddFunc("random",&DefScriptPackage::func_random);
AddFunc("fileexists",&DefScriptPackage::func_fileexists);
AddFunc("strfind",&DefScriptPackage::func_strfind);
AddFunc("funcexists",&DefScriptPackage::func_funcexists);
AddFunc("scriptexists",&DefScriptPackage::func_scriptexists);
// list functions
AddFunc("lpushback",&DefScriptPackage::func_lpushback);
AddFunc("lappend",&DefScriptPackage::func_lpushback); // alias for lpushback
AddFunc("lpushfront",&DefScriptPackage::func_lpushfront);
AddFunc("lpopback",&DefScriptPackage::func_lpopback);
AddFunc("lpopfront",&DefScriptPackage::func_lpopfront);
AddFunc("ldelete",&DefScriptPackage::func_ldelete);
AddFunc("lexists",&DefScriptPackage::func_lexists);
AddFunc("llen",&DefScriptPackage::func_llen);
AddFunc("linsert",&DefScriptPackage::func_linsert);
AddFunc("lsplit",&DefScriptPackage::func_lsplit);
AddFunc("lcsplit",&DefScriptPackage::func_lcsplit);
AddFunc("ljoin",&DefScriptPackage::func_ljoin);
AddFunc("lindex",&DefScriptPackage::func_lindex);
AddFunc("lclean",&DefScriptPackage::func_lclean);
AddFunc("lmclean",&DefScriptPackage::func_lmclean);
AddFunc("lerase",&DefScriptPackage::func_lerase);
AddFunc("lsort",&DefScriptPackage::func_lsort);
// ByteBuffer functions
AddFunc("bbinit",&DefScriptPackage::func_bbinit);
AddFunc("bbdelete",&DefScriptPackage::func_bbdelete);
AddFunc("bbappend",&DefScriptPackage::func_bbappend);
AddFunc("bbread",&DefScriptPackage::func_bbread);
AddFunc("bbhexlike",&DefScriptPackage::func_bbhexlike);
AddFunc("bbtextlike",&DefScriptPackage::func_bbtextlike);
AddFunc("bbsetrpos",&DefScriptPackage::func_bbsetrpos);
AddFunc("bbsetwpos",&DefScriptPackage::func_bbsetwpos);
AddFunc("bbsize",&DefScriptPackage::func_bbsize);
}
void DefScriptPackage::AddFunc(std::string n,DefReturnResult (DefScriptPackage::*f)(CmdSet& Set), bool esc)
{
DefScriptFunctionEntry e(n,f,esc);
AddFunc(e);
}
void DefScriptPackage::AddFunc(DefScriptFunctionEntry e)
{
if( (!e.name.empty()) && (!HasFunc(e.name)) )
_functable.push_back(e);
}
bool DefScriptPackage::HasFunc(std::string n)
{
for(DefScriptFunctionTable::iterator i=_functable.begin();i!=_functable.end();i++)
if(i->name==n)
return true;
return false;
}
void DefScriptPackage::DelFunc(std::string n)
{
for(DefScriptFunctionTable::iterator i=_functable.begin();i!=_functable.end();i++)
if(i->name==n)
{
_functable.erase(i);
break;
}
}
void DefScriptPackage::SetPath(std::string p){
scPath=p;
}
DefScript *DefScriptPackage::GetScript(std::string scname){
return ScriptExists(scname) ? Script[scname] : NULL;
}
unsigned int DefScriptPackage::GetScripts(void){
return Script.size();
}
DefScript_DynamicEventMgr *DefScriptPackage::GetEventMgr(void)
{
return _eventmgr;
}
bool DefScriptPackage::ScriptExists(std::string name)
{
for (std::map<std::string,DefScript*>::iterator i = Script.begin();i != Script.end();i++)
if(i->first == name && i->second != NULL)
return true;
return false;
}
void DefScriptPackage::DeleteScript(std::string sn)
{
lists.Unlink(SCRIPT_NAMESPACE + sn); // remove name from the list storage
if(ScriptExists(sn))
{
delete GetScript(sn); // delete the script itself
Script.erase(sn); // remove reference
}
}
bool DefScriptPackage::LoadByName(std::string name){
return LoadScriptFromFile((scPath+name).append(".def"));
}
bool DefScriptPackage::LoadScriptFromFile(std::string fn){
if(fn.empty())
return false;
std::string label, value, line, sn;
std::fstream f;
bool load_debug=false,load_notify=false,cantload=false;
char z;
unsigned int absline=0;
DefScript *curScript = NULL;
f.open(fn.c_str(),std::ios_base::in);
if(!f.is_open())
return false;
std::deque<unsigned int> Blocks;
// auto-assign the scriptname as the plain filename without extension. can be changed while loading
unsigned int slashpos = fn.find_last_of("\\/");
if(slashpos == std::string::npos)
slashpos = 0;
unsigned int ppos = fn.find_last_of(".");
if(ppos == std::string::npos)
ppos = fn.length();
sn = stringToLower(fn.substr(slashpos+1,(ppos-slashpos-1)));
_UpdateOrCreateScriptByName(sn);
curScript=Script[sn];
DeleteScript(SN_ONLOAD);
while(!f.eof())
{
line.clear();
while (true)
{
f.get(z);
if(z=='\n' || f.eof())
break;
line+=z;
}
absline++;
if(line.empty())
continue; // line is empty, proceed with next line
while( !line.empty() && (line.at(0)==' ' || line.at(0)=='\t') )
line.erase(0,1);
if(line.empty())
continue;
if(line.at(0)=='/' && line.at(1)=='/')
continue; // line is comment, proceed with next line
if(line.at(0)=='#')
{
line.erase(0,1); // remove #
label=line.substr(0,line.find('=',0));
value=line.substr(line.find('=',0)+1,line.length());
if(label=="permission")
{
scriptPermissionMap[sn] = atoi(value.c_str());
}
else if(label=="script")
{
if(!curScript->GetLines()) // delete script if unused
DeleteScript(curScript->GetName());
sn = stringToLower(value);
_UpdateOrCreateScriptByName(sn);
_DEFSC_DEBUG(printf("DefScript: now loading '%s'\n",sn.c_str()));
curScript=Script[sn];
}
else if(line=="debug")
{
if(curScript)
curScript->SetDebug(true);
}
else if(line=="onload")
{
_UpdateOrCreateScriptByName(SN_ONLOAD);
curScript=Script[SN_ONLOAD];
}
else if(line=="endonload" || line=="/onload")
{
RunScript(SN_ONLOAD,NULL,sn);
DeleteScript(SN_ONLOAD);
curScript=Script[sn];
}
else if(strcmp(line.c_str(),"tag")==0 || strcmp(line.c_str(),"mark")==0)
{
curScript->AddLine("#" + line);
}
//...
continue; // line was an option, not script content
}
// help with loading lines where a space or tab have accidently been put after the cmd
std::string tline=stringToLower(line);
if(memcmp(tline.c_str(),"else ",5)==0 || memcmp(tline.c_str(),"else\t",5)==0) tline="else";
else if(memcmp(tline.c_str(),"endif ",6)==0 || memcmp(tline.c_str(),"endif\t",5)==0) tline="endif";
else if(memcmp(tline.c_str(),"loop ",5)==0 || memcmp(tline.c_str(),"loop\t",5)==0) tline="loop";
else if(memcmp(tline.c_str(),"endloop ",8)==0 || memcmp(tline.c_str(),"endloop\t",8)==0) tline="endloop";
if(tline=="else" || tline=="endif" || tline=="loop" || tline=="endloop")
line=tline;
// check for correct block match
if(memcmp(tline.c_str(),"if ",3)==0) // need to check lowercased line! (IF may be uppercased)
Blocks.push_back(BLOCK_IF);
else if(line=="else")
{
if(Blocks.empty() || Blocks.back()!=BLOCK_IF)
{
cantload=true;
break;
}
}
else if(line=="endif")
{
if(Blocks.empty() || Blocks.back()!=BLOCK_IF)
{
cantload=true;
break;
}
Blocks.pop_back();
}
else if(line=="loop")
Blocks.push_back(BLOCK_LOOP);
else if(line=="endloop")
{
if(Blocks.empty() || Blocks.back()!=BLOCK_LOOP)
{
cantload=true;
break;
}
Blocks.pop_back();
}
// check for correct bracket match
unsigned int bopen=0;
bool mismatch=false;
for(unsigned int bpos=0;bpos<line.length();bpos++)
{
if(line[bpos]=='{')
bopen++;
else if(line[bpos]=='}')
{
if(bpos)
bopen--;
else
{
mismatch=true;
break;
}
}
else if(line[bpos]=='\\')
{
bpos++;
continue;
}
}
if(mismatch || bopen) // no bracket must be left open now
{
printf("DefScript [%s:%u]: Bracket mismatch at line '%s'\n",sn.c_str(),absline,line.c_str());
continue; // continue with next line without adding the current line to script
}
curScript->AddLine(line);
}
f.close();
if(cantload || Blocks.size())
{
printf("DefScript: Error loading file '%s'. block mismatch?\n",fn.c_str());
DeleteScript(sn);
return false;
}
// ...
return true;
}
// --- SECTION FOR THE INDIVIDUAL SCRIPTS IN A PACKAGE ---
DefScript::DefScript(DefScriptPackage *p)
{
_parent=p;
scriptname="{NONAME}";
debugmode=false;
}
DefScript::~DefScript()
{
Clear();
}
void DefScript::Clear(void)
{
Line.clear();
}
void DefScript::SetDebug(bool d)
{
debugmode=d;
}
bool DefScript::GetDebug(void)
{
return debugmode;
}
void DefScript::SetName(std::string name)
{
scriptname=name;
}
std::string DefScript::GetName(void)
{
return scriptname;
}
unsigned int DefScript::GetLines(void)
{
return Line.size();
}
std::string DefScript::GetLine(unsigned int id)
{
return Line[id];
}
bool DefScript::AddLine(std::string l){
if(l.empty())
return false;
Line.push_back(l);
return true;
}
// --- SECTION FOR COMMAND SETS ---
CmdSet::CmdSet()
{
}
CmdSet::~CmdSet()
{
}
void CmdSet::Clear()
{
arg.clear();
cmd="";
defaultarg="";
caller="";
myname="";
}
// --- FUNCTIONS TO PARSE AND EXECUTE A SCRIPT --- PARENT: DefScriptPackage!
// the referred pSet is the parent from which RunScript() has been called
bool DefScriptPackage::BoolRunScript(std::string name, CmdSet *pSet)
{
DefReturnResult r = RunScript(name,pSet);
return r.ok;
}
// the referred pSet is the parent from which RunScript() has been called
DefReturnResult DefScriptPackage::RunScript(std::string name, CmdSet *pSet,std::string override_name)
{
DefReturnResult r;
if( (!ScriptExists(name)) && (!HasFunc(name)) )
{
r.ok=false; // doesnt exist
r.ret="";
return r;
}
DefScript *sc = GetScript(name);
if(!sc)
{
r.ok=false;
r.ret="";
return r;
}
if(!override_name.empty())
name=override_name;
CmdSet temp;
if(!pSet)
{
pSet = &temp;
}
pSet->caller=pSet->myname;
pSet->myname=name;
std::deque<Def_Block> Blocks;
CmdSet mySet;
std::string line;
for(unsigned int i=0;i<sc->GetLines();i++)
{
line=sc->GetLine(i);
if(line.empty() || line[0] == '#') // skip markers and preload statements if not removed before
continue;
if(line=="else")
{
if(!Blocks.size())
{
printf("DEBUG: else-block without any block?! [%s:%u]\n",name.c_str(),i);
r.ok=false;
break;
}
Def_Block b=Blocks.back();
if(b.type==BLOCK_IF && b.istrue)
{
unsigned int other_ifs=0;
for(i=b.startline+1;;i++)
{
if(memcmp(sc->GetLine(i).c_str(),"if ",3)==0)
other_ifs++;
else if(sc->GetLine(i)=="endif")
{
if(!other_ifs)
break;
other_ifs--;
}
}
i--; // next line read will be "endif", decide then what to do
}
continue;
}
else if(line=="endif")
{
if(!Blocks.size())
{
printf("DEBUG: endif without any block [%s:%u]\n",name.c_str(),i);
r.ok=false;
break;
}
if(Blocks.back().type!=BLOCK_IF)
{
printf("DEBUG: endif: closed block is not an if block! [%s:%u]\n",name.c_str(),i);
r.ok=false;
break;
}
Blocks.pop_back();
continue;
}
else if(line=="loop")
{
Def_Block b;
b.startline=i;
b.type=BLOCK_LOOP;
b.istrue=true;
Blocks.push_back(b);
continue;
}
else if(line=="endloop")
{
if(!Blocks.size())
{
printf("DEBUG: endloop without any block [%s:%u]\n",name.c_str(),i);
r.ok=false;
break;
}
if(Blocks.back().type!=BLOCK_LOOP)
{
printf("DEBUG: endloop: closed block is not a loop block! [%s:%u]\n",name.c_str(),i);
r.ok=false;
break;
}
i=Blocks.back().startline; // next line executed will be the line after "loop"
continue;
}
//_DEFSC_DEBUG(printf("DefScript before: \"%s\"\n",line.c_str()));
DefXChgResult final=ReplaceVars(line,pSet,0,true);
//_DEFSC_DEBUG(printf("DefScript parsed: \"%s\"\n",final.str.c_str()));
mySet.Clear();
SplitLine(mySet,final.str);
if(mySet.cmd=="if")
{
Def_Block b;
b.startline=i;
b.type=BLOCK_IF;
b.istrue=isTrue(mySet.defaultarg);
Blocks.push_back(b);
if(!b.istrue)
{
unsigned int other_ifs=0;
for(i=b.startline+1;;i++)
{
if(!memcmp(sc->GetLine(i).c_str(),"if ",3))
other_ifs++;
if(sc->GetLine(i)=="else" || sc->GetLine(i)=="endif")
{
if(!other_ifs)
break;
if(sc->GetLine(i)=="endif")
other_ifs--;
}
}
i--; // next line read will be either "else" or "endif", decide then what to do
}
continue; // and read line after "else"
}
else if(mySet.cmd=="exitloop")
{
// skip some ifs if they are present
while(Blocks.back().type!=BLOCK_LOOP)
Blocks.pop_back();
Blocks.pop_back();
unsigned int other_loops=0;
while(true)
{
if(sc->GetLine(i)=="loop")
other_loops++;
if(sc->GetLine(i)=="endloop")
{
if(!other_loops)
break;
other_loops--;
}
i++; // go until next endloop
}
// next line read will be the line after "endloop"
continue;
}
mySet.myname=name;
mySet.caller=pSet?pSet->myname:"";
r=Interpret(mySet);
if(r.mustreturn)
{
r.mustreturn=false;
break;
}
}
return r;
}
DefReturnResult DefScriptPackage::RunSingleLine(std::string line)
{
DefXChgResult final=ReplaceVars(line,NULL,0,true);
CmdSet Set;
SplitLine(Set,final.str);
return Interpret(Set);
}
DefReturnResult DefScriptPackage::RunSingleLineFromScript(std::string line, DefScript *pScript)
{
CmdSet Set;
Set.myname=pScript->GetName();
DefXChgResult final=ReplaceVars(line,&Set,0,true);
SplitLine(Set,final.str);
return Interpret(Set);
}
void DefScriptPackage::SplitLine(CmdSet& Set,std::string line)
{
unsigned int i=0;
unsigned int bracketsOpen=0,curParam=0;
bool cmdDefined=false;
std::string tempLine;
// extract cmd+params and txt
for(i=0;i<line.length();i++){
if(line[i]=='{')
bracketsOpen++;
else if(line[i]=='}')
bracketsOpen--;
else if( line[i]==',' && !bracketsOpen)
{
if(!cmdDefined){
Set.cmd=tempLine;
cmdDefined=true;
} else {
Set.arg[curParam]=tempLine;
curParam++;
}
tempLine.clear();
}
else if( line[i]==' ' && !bracketsOpen)
{
if(!cmdDefined){
Set.cmd=tempLine;
cmdDefined=true;
} else {
Set.arg[curParam]=tempLine;
}
Set.defaultarg=line.substr(i+1,line.length()-i);
break;
}
else if(line[i]=='\\')
{
i++;
continue;
}
else
{
tempLine+=line[i];
}
}
if(!cmdDefined)
Set.cmd=tempLine;
if(cmdDefined && !Set.cmd.empty() && Set.defaultarg.empty())
Set.arg[curParam]=tempLine;
Set.cmd = DefScriptTools::stringToLower(Set.cmd); // lowercase cmd
Set.cmd = UnescapeString(Set.cmd); // always unescape the cmd!
RemoveBrackets(Set); // TODO: call this somewhere else as soon as IF and LOOP statements are implemented!
}
std::string DefScriptPackage::RemoveBracketsFromString(std::string t)
{
if(t.empty())
return t;
if(t.at(0)=='{' && t.at(t.length()-1)=='}')
{
t.erase(t.length()-1,1);
t.erase(0,1);
}
unsigned int ob=0,bo=0;
bool isVar=false;
for(unsigned int i=0; i<t.length(); i++)
{
if(t[i]=='{')
{
if(i>0 && (t[i-1]=='$' || t[i-1]=='?') )
isVar=true;
if(!bo)
ob=i;
bo++;
}
else if(t[i]=='}')
{
bo--;
if(!bo)
{
if(!isVar)
{
unsigned int blen=i-ob+1;
std::string subStr=t.substr(ob,blen);
std::string retStr=RemoveBracketsFromString(subStr);
t.erase(ob,blen);
t.insert(ob,retStr);
i=ob-1;
}
isVar=false;
}
}
else if(t[i]=='\\')
{
i++;
continue;
}
}
return t;
}
void DefScriptPackage::RemoveBrackets(CmdSet& Set)
{
Set.defaultarg=RemoveBracketsFromString(Set.defaultarg);
Set.cmd=RemoveBracketsFromString(Set.cmd);
for(_CmdSetArgMap::iterator i=Set.arg.begin(); i!=Set.arg.end(); i++)
{
i->second=RemoveBracketsFromString(i->second);
}
}
void DefScriptPackage::UnescapeSet(CmdSet& Set)
{
Set.defaultarg=UnescapeString(Set.defaultarg);
//Set.cmd=UnescapeString(Set.cmd); // this is done already in SplitLine() !
for(_CmdSetArgMap::iterator i=Set.arg.begin(); i!=Set.arg.end(); i++)
{
i->second=UnescapeString(i->second);
}
}
DefXChgResult DefScriptPackage::ReplaceVars(std::string str, CmdSet *pSet, unsigned char VarType, bool run_embedded)
{
unsigned int
openingBracket=0, // defines the position from where the recursive call is started
closingBracket=0, // the closing bracket
bracketsOpen=0, // amount of brackets opened
bLen=0; // the lenth of the string in brackets, e.g. ${abc} == 3
unsigned char
nextVar=DEFSCRIPT_NONE; // '$' or '?'
bool
hasChanged=false, // additional helper. once true, xchg.result will be true later also
hasVar=false, // true if openingBracket (= the first bracket) was preceded by '$' or '?'
escaped=false;
std::string subStr;
DefXChgResult xchg;
for(unsigned int i=0;i<str.length();i++)
{
if(escaped)
{
escaped=false;
continue;
}
else if(str[i]=='{')
{
if(!bracketsOpen)
openingBracket=i; // var starts with $, normal bracket with {
if(i>0 && str[i-1]=='$')
{
hasVar=true;
if(!bracketsOpen)
nextVar=DEFSCRIPT_VAR;
}
if(i>0 && str[i-1]=='?')
{
hasVar=true;
if(!bracketsOpen)
nextVar=DEFSCRIPT_FUNC;
}
bracketsOpen++;
}
else if(str[i]=='}')
{
if(bracketsOpen)
bracketsOpen--;
if(!bracketsOpen)
{
closingBracket=i;
if(nextVar==DEFSCRIPT_NONE && VarType==DEFSCRIPT_VAR && !hasVar) // remove brackets in var names, like ${var{ia}ble}
{
str.erase(closingBracket,1);
str.erase(openingBracket,1);
i=openingBracket; // jump to the pos where the opening bracket was
continue;
}
else
{
bLen=closingBracket-openingBracket-1;
subStr=str.substr(openingBracket+1,bLen);
//printf("SUBSTR: \"%s\"\n",subStr.c_str());
xchg=ReplaceVars(subStr,pSet,nextVar,run_embedded);
if( nextVar==DEFSCRIPT_NONE && hasVar && xchg.changed )
{
str.erase(openingBracket+1,subStr.length());
str.insert(openingBracket+1,xchg.str);
hasVar=false;
i-=(subStr.length()+1);
hasChanged=true;
}
else if( nextVar!=DEFSCRIPT_NONE && hasVar && xchg.changed )
{
str.erase(openingBracket-1,bLen+3); // remove ${...} (+3 because of '${}')
i-=(bLen+2); // adjust position
str.insert(i,xchg.str);
if(str[i]=='\\') // workaround, since i will be increased 1 too high
escaped=true;
hasVar=false;
nextVar=DEFSCRIPT_NONE;
}
}
}
} // end if '}'
else if(str[i]=='\\') // if escape char \ found, skip parsing next char
{
i++;
continue;
}
} // end for
if(!bracketsOpen && VarType!=DEFSCRIPT_NONE)
{
// fix for empty var: ${}
if(str.empty())
{
xchg.str="";
xchg.changed=true;
return xchg;
}
if(VarType==DEFSCRIPT_VAR)
{
std::string vname=_NormalizeVarName(str, (pSet==NULL) ? "" : pSet->myname);
if(vname[0]=='@')
{
std::stringstream vns;
std::string subs=vname.substr(1,str.length()-1);
unsigned int vn=atoi( subs.c_str() );
vns << vn;
if(pSet && vns.str()==subs) // resolve arg macros @0 - @4294967295
str=pSet->arg[vn];
else if(pSet && subs=="def")
str=pSet->defaultarg;
else if(pSet && subs=="myname")
str=pSet->myname;
else if(pSet && subs=="cmd")
str=pSet->cmd;
else if(pSet && subs=="caller")
str=pSet->caller;
else if(subs=="n")
str="\n";
else if(variables.Exists(vname))
str=variables.Get(vname);
else
{
// TODO: call custom macro table
//...
str.clear();
}
xchg.changed=true;
}
else
{
if(variables.Exists(vname))
{
str=variables.Get(vname);
xchg.changed=true;
}
}
}
else if(VarType==DEFSCRIPT_FUNC)
{
if(run_embedded)
{
DefReturnResult res;
if(pSet)
res=RunSingleLineFromScript(str,GetScript(pSet->myname));
else
res=RunSingleLine(str);
str=res.ret; // returns empty string on invalid function!!
xchg.result.ok=res.ok;
xchg.changed=true;
//xchg.result.err += res.err;
}
else // if not allowed to run scripts via ?{...}
{
str=""; // just replace with 0
xchg.changed=true; // yes we have changed something
xchg.result.ok=true; // change ok, insert our (empty) return value
}
}
}
xchg.str = str;
if(hasChanged)
xchg.changed=true;
return xchg;
}
std::string DefScriptPackage::_NormalizeVarName(std::string vn_in, std::string sn){
if(vn_in.empty())
return vn_in;
std::string vn=vn_in;
bool global=false;
if(sn.empty())
global = true;
while(true)
{
if(vn.at(0)=='#')
global = true;
if(vn.at(0)=='#' || vn.at(0)==':')
vn.erase(0,1);
else
break;
}
if( (!global) && (vn.at(0)!='@') )
vn=sn+"::"+vn;
return vn;
}
DefReturnResult DefScriptPackage::Interpret(CmdSet& Set)
{
// TODO: remove this debug block again as soon as the interpreter bugs are fixed.
hLogfile << "PARENT: '" << Set.caller << "'\n";
hLogfile << "cmd = '" << Set.cmd << "'\n";
unsigned int ctr=0;
for(_CmdSetArgMap::iterator i=Set.arg.begin(); i!=Set.arg.end(); i++)
hLogfile << "arg[" << ctr++ << "] = '" << i->second << "'\n";
hLogfile << "defaultarg = '" << Set.defaultarg << "'\n\n";
DefReturnResult result;
// first search if the script is defined in the internal functions
for(unsigned int i=0;i<_functable.size();i++)
{
if(Set.cmd==_functable[i].name)
{
if(_functable[i].escape) // if we are going to use a C++ function, unescape the whole set, if supposed to do so.
UnescapeSet(Set); // it will not have any bad side effects, we leave the func within this block!
result=(this->*(_functable[i].func))(Set);
if(_functable[i].escape)
result.ret = EscapeString(result.ret); // and since we are returning a string into the engine, escape it again, if set.
return result;
}
}
if(Set.cmd=="return")
{
result.mustreturn=true;
result.ret=Set.defaultarg;
return result;
}
// if nothing has been found its maybe an external script file to run
result=RunScript(Set.cmd, &Set);
if((!result.ok) /*&& Script[Set.cmd]->GetDebug()*/)
std::cout << "Could not execute script command '" << Set.cmd << "'\n";
return result;
}
void DefScriptPackage::_UpdateOrCreateScriptByName(std::string sn)
{
if(GetScript(sn))
DeleteScript(sn);
DefScript *newscript = new DefScript(this);
newscript->SetName(sn); // necessary that the script knows its own name
Script[sn] = newscript;
lists.Assign(SCRIPT_NAMESPACE + sn, &(newscript->Line));
}
std::string DefScriptPackage::SecureString(std::string s)
{
std::string out;
for(unsigned int i = 0; i < s.length(); i++)
{
if(s[i] == '{')
out += '[';
else if(s[i] == '}')
out += ']';
else
out += s[i];
}
return out;
}
// escapes whole string, which can no longer be parsed & interpreted
std::string DefScriptPackage::EscapeString(std::string s)
{
std::string out;
out.reserve(s.length()+8);
for(unsigned int i = 0; i < s.length(); i++)
{
switch(s[i])
{
case '{':
case '}':
case '\\':
out += '\\';
out += s[i];
break;
case '\n':
out += "\\n";
break;
case '\t':
out += "\\t";
break;
default:
out += s[i];
}
}
return out;
}
// converts a string into a printable form, with all escape sequences resolved
std::string DefScriptPackage::UnescapeString(std::string s)
{
std::string out;
out.reserve(s.length());
for(unsigned int i = 0; i < s.length(); i++)
{
if(s[i] == '\\' && i+1 < s.length())
{
switch(s[i+1])
{ // if any of these are found, append to output string and skip this byte
case '{':
case '}':
case '\\':
out += s[++i];
break;
case 'n':
out += '\n';
i++;
break;
case 't':
out += '\t';
i++;
break;
case 'x':
if(i+4 <= s.length())
{
std::string xd = s.substr(i+2,2);
char c = (char)strtoul(s.substr(i+2,2).c_str(),NULL,16);
out += c;
i += 3;
}
}
}
else
{
out += s[i];
}
}
return out;
}
std::string DefScriptPackage::GetUnescapedVar(std::string n)
{
return UnescapeString(variables.Get(n));
}