bool XMLReader::IsNameToken(const UnicodeString & token)
{
// Nmtoken ::= (NameChar)+
size_t n = token.size();
if (n == 0) return false;
for (size_t i = 0; i < n; ++i) {
if (! IsNameChar(token[i])) return false;
}
return true;
}
void MeasureTokenLength()
{
if(IsNameChar(*m_pNext))
{
for(m_len = 1; IsNameChar(m_pNext[m_len]) || IsDigit(m_pNext[m_len]); m_len++)
{
}
m_type = name;
}
else if(IsDigit(*m_pNext) || *m_pNext == '.')
{
int exps = 0;
int decimals = 0;
if(*m_pNext == '.')
decimals++;
for(m_len = 1; m_pNext[m_len] != '\0'; m_len++)
{
if(IsDigit(m_pNext[m_len]))
continue;
if(m_pNext[m_len] == '.' && decimals == 0 && exps == 0)
{
decimals++;
continue;
}
if(m_pNext[m_len] == 'e' && IsDigit(m_pNext[m_len + 1]) && exps == 0)
{
exps++;
continue;
}
break;
}
m_type = number;
}
else
{
m_len = 1;
m_type = symbol;
}
}
bool XMLReader::IsName(const UnicodeString & name)
{
// Name ::= (Letter | '_' | ':') (NameChar)*
size_t n = name.size();
if (n == 0) return false;
UnicodeChar c = name[0];
if ((c == UnicodeChar('_')) || (c == UnicodeChar(':')) || IsLetter(c)) {
for (size_t i = 1; i < n; ++i) {
if (! IsNameChar(name[i])) return false;
}
}
return true;
}
bool XMLReader::ParseName(Name & name)
{
// Name ::= (Letter | '_' | ':') (NameChar)*
UnicodeString temp;
UnicodeChar c = ReadChar();
if ((c == UnicodeChar('_')) || (c == UnicodeChar(':')) || IsLetter(c)) {
temp += c;
while (IsNameChar(PeekChar())) temp += ReadChar();
name.SetName(temp);
return true;
}
return false;
}
FarString FarXMLScanner::NextName()
{
if (!IsNameStart (*fBufPos))
{
if (fErrorSink)
fErrorSink->ReportError (fCurLine, GetCurColumn(), "name");
return FarString();
}
int nameLength = 1;
while (IsNameChar (fBufPos [nameLength]))
nameLength++;
FarString result (fBufPos, nameLength);
fBufPos += nameLength;
return result;
}
parseritem * myscanner::getitem(){
UNCH work[100], strch, *tch, s[2];
unsigned workpos;
#define EXPECTELE 1
#define EXPECTVAR 2
#define EXPECTNOTHING 0
int specchar = EXPECTNOTHING;
while (1) {
switch (State) {
case FILEEOF:
return new myitem(ENDOFFILE, (*elup)[ENDOFFILE], 0);
case PASTEND:
break;
case FINDSTART:
while ((GivenLine[pos] == 0) || (GivenLine[pos] == COMMENTID)) {
if (NULL == (GivenLine = pfile->Data())){
State = FILEEOF;
return new myitem(ENDOFFILE, (*elup)[ENDOFFILE], 0);
}
pos = 0;
}
case SKIPBLANKS:
if ((GivenLine[pos] != ' ')&&(GivenLine[pos] != '\t')) State = WHATISIT;
else pos++;
specchar = EXPECTNOTHING;
break;
case WHATISIT:
if ((GivenLine[pos] == 0) || (GivenLine[pos] == COMMENTID)) {
State = FINDSTART;
if (NULL == (GivenLine = pfile->Data()))
State = FILEEOF;
pos = 0;
return new myitem(STATEMENTEND, (*elup)[STATEMENTEND], pfile->LineNo()-1);
}
else if (GivenLine[pos] == ANNOUNCEELE) {
strch = GivenLine[pos++];
specchar = EXPECTELE;
State = MUSTBEALPHA;
}
else if (GivenLine[pos] == ANNOUNCEVAR) {
strch = GivenLine[pos++];
specchar = EXPECTVAR;
State = MUSTBEALPHA;
}
else if ((isalpha(GivenLine[pos]))||(GivenLine[pos]=='\\')) {
State = COLLECTALPHA;
workpos = 0;
}
else if ((GivenLine[pos] == '"')||(GivenLine[pos] == '\'')){
State = COLLECTSTRING;
workpos = 0;
strch = GivenLine[pos++];
}
else if (NULL != (tch = ustrchr(singlesstr, GivenLine[pos]))){
State = SKIPBLANKS;
work[1] = 0; work[0] = GivenLine[pos++];
return new myitem(SINGLESOFFSET + (tch - singlesstr), work, pfile->LineNo());
}
else if ((GivenLine[pos]>='0')&&(GivenLine[pos]<='9') ) {
State = COLLECTNUMBER;
workpos = 0;
}
else {
/*RES OLD MSG 587
File %0: Unrecognized character "%1" found in line %2.
*/
ResFile->MsgData(epmfilename);
ResFile->MsgData((unsigned short)GivenLine[pos]);
ResFile->MsgData(pfile->LineNo());
ResFile->PutResError(/*RES REM INS*/ 587);
s[1] = 0; s[0] = GivenLine[pos];
return new myitem(9999, s, pfile->LineNo());
}
break;
case MUSTBEALPHA:
if ((isalpha(GivenLine[pos]))||(GivenLine[pos]=='\\')) {
State = COLLECTALPHA;
workpos = 0;
}
else {
/*RES OLD MSG 599
File %0: A name does not follow "%1" on in line %2.
*/
ResFile->MsgData(epmfilename);
ResFile->MsgData(strch);
ResFile->MsgData(pfile->LineNo());
ResFile->PutResError(/*RES REM INS*/ 599);
s[1] = 0; s[0] = strch;
return new myitem(9999, s, pfile->LineNo());
}
break;
case COLLECTALPHA:
if (IsNameChar(GivenLine[pos]))work[workpos++] = toupper(GivenLine[pos++]);
else if (GivenLine[pos] == '\\'){
if (GivenLine[pos+1] != 0)pos++;
work[workpos++] = GivenLine[pos++];
}
else {
work[workpos] = 0;
State = CHECKALPHA;
}
break;
case CHECKALPHA:
etd *fndetd;
// basevalue *fndid;
int rslt;
varname *vn;
State = SKIPBLANKS;
if (specchar == EXPECTELE){
if ((fndetd = IsElementName(work)) != NULL)
return new etditem(ELEMENTNAME, work, pfile->LineNo(), fndetd);
/*RES OLD MSG 600
File %0: "%1" is not an element name, on line %2.
*/
ResFile->MsgData(epmfilename);
ResFile->MsgData(work);
ResFile->MsgData(pfile->LineNo());
ResFile->PutResError(/*RES REM INS*/ 600);
return new myitem(9999, work, pfile->LineNo());
}
else if (specchar == EXPECTVAR){
if ((vn = IsVarName(globalvars,work)) != NULL)
return new varitem(VARIABLENAME, work, pfile->LineNo(), vn);
/*RES OLD MSG 601
File %0: "%1" is not a global variable or TACTid name, on line %2.
*/
ResFile->MsgData(epmfilename);
ResFile->MsgData(work);
ResFile->MsgData(pfile->LineNo());
ResFile->PutResError(/*RES REM INS*/ 601);
return new myitem(9999, work, pfile->LineNo());
}
if (0 != (rslt = slup->Lookup(work)))
return new myitem(STRINGSSTART + rslt, work, pfile->LineNo());
else
if ((fndetd = IsElementName(work)) != NULL)
return new etditem(ELEMENTNAME, work, pfile->LineNo(), fndetd);
if ((vn = IsVarName(localvars,work)) != NULL)
return new varitem(VARIABLENAME, work, pfile->LineNo(), vn);
if ((vn = IsVarName(globalvars,work)) != NULL)
return new varitem(VARIABLENAME, work, pfile->LineNo(), vn);
else
return new myitem(UNDECLAREDNAME, work, pfile->LineNo());
case COLLECTSTRING:
if ((GivenLine[pos] == COMMENTID)|(GivenLine[pos] == 0)) {
/*RES OLD MSG 584
File %0: A string without a closing character was found on line %1
*/
ResFile->MsgData(epmfilename);
ResFile->MsgData(pfile->LineNo());
ResFile->PutResError(/*RES REM INS*/ 584);
return new myitem(9999, work, pfile->LineNo());
}
if (GivenLine[pos] == strch)
{
pos++;
State = SKIPBLANKS;
work[workpos] = 0;
return new myitem(STRING, work, pfile->LineNo());
}
else work[workpos++] = GivenLine[pos++];
break;
case COLLECTNUMBER:
if ((GivenLine[pos]>='0')&&(GivenLine[pos]<='9') ) work[workpos++] = GivenLine[pos++];
else {
State = SKIPBLANKS;
work[workpos] = 0;
return new myitem(NUMBER, work, pfile->LineNo());
}
break;
}
}
};
// skip all html tag or attribute characters
static void SkipName(const char*& s, const char *end)
{
while ((s < end) && IsNameChar(*s)) {
s++;
}
}
static bool IsValidTagStart(char c)
{
return c == '/' || c == '!' || c == '?' || IsNameChar(c);
}
