sptr<Node> Parser::ParseWith()
{
sptr<StmntNode> root(new StmntNode(currToken));
NextToken(); // Skip with
sptr<Node> subroot(new VarListNode(ParseVar(), "Var list"));
while(MatchSkip(COMMA, -1))
subroot->PushChild(ParseVar());
root->PushChild(subroot);
Expect(DO, -1);
root->PushChild(ParseStatement());
return root;
}
sptr<Node> Parser::ParseAssign(sptr<VarNode> ident)
{
sptr<AssignNode> root(new AssignNode(ParseVar(ident), currToken));
Expect(ASSIGN, -1);
root->PushChild(ParseExp());
return root;
}
bool cVarParser::ParseCondExp(const string& input)
{
int condEndPos = input.find("?");
string cond(input.begin(), input.begin() + condEndPos);
int condNeqPos = cond.find("!=");
int condEqPos = cond.find("==");
if (condEqPos == -1 && condNeqPos == -1)
{
cond += "!=";
condNeqPos = cond.find("!=");
}
if (condEqPos >= 0 || condNeqPos >= 0)
{
if (!ParseEquality(cond))
{
LogFile.eSysLog("error parsing '%s'", input.c_str());
return false;
}
condOp = (condEqPos >= 0)?condEq:condNeq;
}
else
{
LogFile.eSysLog("error parsing '%s'", input.c_str());
return false;
}
string truefalse(input.begin() + condEndPos + 1, input.end());
int elsePos = truefalse.find(":");
if (elsePos >= 0)
{
string truePart(truefalse.begin(), truefalse.begin() + elsePos);
string falsePart(truefalse.begin() + elsePos + 1, truefalse.end());
if (ParseVar(truePart) && ParseVar(falsePart))
{
condvarTrue = Strip(truePart);
condvarFalse = Strip(falsePart);
type = cVarParser::condition;
return true;
}
}
LogFile.eSysLog("error parsing '%s'", input.c_str());
condEqLeft = condEqRight = "";
return false;
}
bool CArea::GetValueFromVo(string VO)
{
if (!ParseTypeMode(VO)) return false;
if (!ParseDataType(VO)) return false;
if (!ParseAxis(VO)) return false;
if (!ParseVar(VO)) return false;
if (!ParseDefLine(VO)) return false;
if (!ParseWeight(VO)) return false;
if (!ParseOutput(VO)) return false;
return true;
}
sptr<ExprNode> Parser::ParsePrimary()
{
sptr<ExprNode> primary = nullptr;
if (Match(INTEGER, REAL, HEX, CHARACTER, STRING, -1))
{
primary = sptr<ConstNode>(new ConstNode(currToken));
NextToken();
}
else if (Match(IDENT, -1))
{
sptr<VarNode> ident = ParseIdent();
primary = Match(OPENBRAC, -1) ? ParseVar(ParseFuncCall(ident)) : ParseVar(ident);
}
else if (Match(OPENBRAC, -1))
{
NextToken();
primary = ParseExp();
if (Match(CLOSEBRAC)) NextToken();
else throw ParserException("Enclosed bracket error");
}
return primary;
}
char *ParseVar(char *Buff, const char **Line, ListNode *LocalVars, int Flags)
{
char *VarName=NULL, *OutStr=NULL, *Tempstr=NULL;
const char *ptr, *vptr;
OutStr=Buff;
ptr=*Line;
if (*ptr=='(') ptr++;
while ((*ptr !=')') && (*ptr !='\0'))
{
if (*ptr=='$')
{
ptr++;
Tempstr=ParseVar(Tempstr,&ptr,LocalVars,Flags);
VarName=CatStr(VarName,Tempstr);
}
else VarName=AddCharToStr(VarName,*ptr);
ptr++;
}
*Line=ptr; //very important! Otherwise the calling process will not
//know we have consumed some of the text!
//Now lookup var/format/append to output
if (! (Flags & SUBS_CASE_VARNAMES)) strlwr(VarName);
vptr=GetVar(LocalVars,VarName);
if (Flags & SUBS_QUOTE_VARS) OutStr=CatStr(OutStr,"'");
if (Flags & SUBS_STRIP_VARS_WHITESPACE)
{
Tempstr=CopyStr(Tempstr,vptr);
StripTrailingWhitespace(Tempstr);
StripLeadingWhitespace(Tempstr);
OutStr=CatStr(OutStr,Tempstr);
}
else OutStr=CatStr(OutStr, vptr);
if (Flags & SUBS_QUOTE_VARS) OutStr=CatStr(OutStr,"'");
DestroyString(VarName);
DestroyString(Tempstr);
return(OutStr);
}
bool cVarParser::ParseAssign(const string& input)
{
int assignPos = input.find("=");
if (assignPos >= 0)
{
string var(input.begin(), input.begin() + assignPos);
if (ParseVar(var))
{
varName = Strip(var);
string assign(input.begin() + assignPos + 1, input.end());
return ParseExp(assign);
}
}
LogFile.eSysLog("error parsing '%s'", input.c_str());
return false;
}
char *SubstituteVarsInString(char *Buffer, const char *Fmt, ListNode *Vars, int Flags)
{
char *ReturnStr=NULL, *VarName=NULL, *Tempstr=NULL;
const char *FmtPtr;
int count, VarIsPointer=FALSE;
ListNode *Curr;
int len=0, i;
ReturnStr=CopyStr(Buffer,"");
if (! Fmt) return(ReturnStr);
FmtPtr=Fmt;
while (*FmtPtr !=0)
{
switch (*FmtPtr)
{
case '\\':
FmtPtr++;
switch (*FmtPtr)
{
case 't':
ReturnStr=AddCharToStr(ReturnStr,' ');
len=StrLen(ReturnStr);
while ((len % 4) !=0)
{
ReturnStr=AddCharToStr(ReturnStr,' ');
len++;
}
break;
case 'r':
ReturnStr=AddCharToStr(ReturnStr,'\r');
len++;
break;
case 'n':
ReturnStr=AddCharToStr(ReturnStr,'\n');
len++;
break;
default:
ReturnStr=AddCharToStr(ReturnStr,*FmtPtr);
len++;
}
break;
case '$':
FmtPtr++;
/*
if (*FmtPtr=='$')
{
VarIsPointer=TRUE;
FmtPtr++;
}
if (*FmtPtr=='(') FmtPtr++;
*/
ReturnStr=ParseVar(ReturnStr, &FmtPtr, Vars, Flags);
break;
case '"':
FmtPtr++;
while (*FmtPtr && (*FmtPtr !='"'))
{
ReturnStr=AddCharToStr(ReturnStr,*FmtPtr);
len++;
FmtPtr++;
}
break;
default:
ReturnStr=AddCharToStr(ReturnStr,*FmtPtr);
len++;
}
FmtPtr++;
}
DestroyString(Tempstr);
DestroyString(VarName);
return(ReturnStr);
}
