string text;
int cursor;
+ int length;
public TextStream (string text = "")
{
this.text = text;
+ this.length = text.length; // text.char_count();
this.cursor = 0;
}
- public char look(int n = 0, out bool eof)
+ public char look(int n = 0)
{
- eof = false;
-
- if (this.cursor+n < 0 || this.cursor+n >= this.text.length) {
- eof = true;
+
+ if (this.cursor+n < 0 || this.cursor+n >= this.length) {
return '\0';
}
- return this.text[this.cursor+n];
- },
-
- public char next(int n = 1, out bool eof)
+ return this.text[this.cursor+n]; // this.text.get_char(this.cursor+n);
+ }
+
+ public bool lookEOF(int n = 0)
+ {
+ if (this.cursor+n < 0 || this.cursor+n >= this.length) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * @param n - number of characters to return..
+ */
+ public string next(int n = 1)
{
- eof = false;
- if (n < 1) {
- return null;
+
+ if (n < 1) { //?? eof???
+ return "\0";
}
- var pulled = "";
- for (var i = 0; i < n; i++) {
- if (this.cursor+i < this.text.length) {
- pulled += this.text.charAt(this.cursor+i);
+ string pulled = "";
+ var i = 0;
+ while (i < n) {
+ if (this.cursor+i < this.length) {
+ var add = this.text[this.cursor+i]; //this.text.get_char(this.cursor+i).to_string();
+ pulled += add.to_string();
+ i += 1;// add.length;
} else {
- eof =true;
- return '\0';
-
+ return "";
}
}
- this.cursor += n;
+ this.cursor += pulled.length;
return pulled;
}