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agomez |
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#include "commentstream.h" |
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#include "errorhandler.h" |
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#include "global.h" |
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istream& operator >> (istream& istr, Whitespace& ws) {
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int c;
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while (istr.peek() == ' ' || istr.peek() == '\t' || istr.peek() == '\r' || istr.peek() == '\n')
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c = istr.get();
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return istr;
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}
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CommentStream& ws(CommentStream& ins) {
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ins.killComments();
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return ins;
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}
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void CommentStream::killComments() {
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if (istrptr->eof())
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return;
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Whitespace ws;
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*istrptr >> ws;
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if (istrptr->eof())
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return;
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char c;
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while (istrptr->peek() == chrComment) {
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while (istrptr->peek() != '\n' && !(istrptr->eof()))
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istrptr->get(c);
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*istrptr >> ws;
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}
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}
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char CommentStream::peek() {
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if (istrptr->peek() == chrComment) {
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this->killComments();
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return '\n';
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} else if (istrptr->peek() == '\r') {
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char tmp;
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istrptr->get(tmp); //JMB get the carriage return and discard it
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} else if (istrptr->peek() == '\\') {
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//attempting to read backslash will do nasty things to the input stream
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handle.logFileMessage(LOGFAIL, "backslash is an invalid character");
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} else if ((istrptr->peek() == '\'') || (istrptr->peek() == '\"')) {
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//attempting to read quote will do nasty things to the input stream
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handle.logFileMessage(LOGFAIL, "quote is an invalid character");
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}
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//JMB GCC 4.3 has a stricter implemenation of the C++ standard
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//so we need to cast this to a char to avoid generating warnings
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return (char)istrptr->peek();
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}
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CommentStream& CommentStream::get(char& c) {
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if (istrptr->peek() == chrComment) {
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this->killComments();
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c = '\n';
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} else if (istrptr->peek() == '\r') {
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char tmp;
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istrptr->get(tmp); //JMB throw away carriage return ...
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istrptr->get(c); //JMB ... to be left with end of line
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} else
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istrptr->get(c);
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return *this;
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}
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CommentStream& CommentStream::getLine(char* text, int length) {
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int i = 0;
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while ((i < length - 2) && (istrptr->peek() != chrComment)
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&& (istrptr->peek() != '\n') && (istrptr->peek() != '\r'))
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text[i++] = (char)istrptr->get();
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if ((istrptr->peek() == '\n') || (istrptr->peek() == '\r'))
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text[i++] = (char)istrptr->get();
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text[i] = '\0';
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return *this;
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}
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CommentStream& CommentStream::operator >> (int& a) {
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this->killComments();
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(*istrptr) >> a;
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return *this;
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}
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CommentStream& CommentStream::operator >> (double& a) {
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this->killComments();
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(*istrptr) >> a;
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return *this;
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}
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CommentStream& CommentStream::operator >> (char* a) {
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this->killComments();
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string s;
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(*istrptr) >> s;
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s.copy(a, string::npos);
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a[s.length()] = '\0';
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return *this;
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}
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CommentStream& CommentStream::operator >> (__commentmanip func) {
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(*func)(*this);
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return *this;
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}
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