source: libcfa/src/algorithms/range_iterator.cfa @ fcbb532

//
// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// range_iterator.cfa --
//
// Author           : Thierry Delisle
// Created On       : Tue Nov 30 13:06:22 2021
// Last Modified By :
// Last Modified On :
// Update Count     :
//

#include "range_iterator.hfa"

#include <stdio.h>

#include <fstream.hfa>

#include "bits/defs.hfa"

void main(RangeIter & this) libcfa_public {
        for() {
                this._start = -1;
                this._stop = -1;
                int start_len = -1, stop_len = -1;
                int ret = sscanf(this.text, "%u%n-%u%n", &this._start, &start_len, &this._stop, &stop_len);
                switch(ret) {
                case 0:
                        // Not a range, maybe a comma?
                        if(this.text[0] == ',') {
                                this.text ++;
                                continue;
                        }

                        serr | "Error: unexpected character in next range: '" | this.text |"'";
                        exit(2);
                case 1:
                        this.text += start_len;
                        // Only one value, push it!
                        this.com = this._start;
                        suspend;
                        break;
                case 2:
                        if(this._start > this._stop) {
                                serr | "Error: next range out of order '" | this.text |"'";
                                exit(2);
                        }
                        this.text += stop_len;
                        for(this.com = this._start; this.com <= this._stop; this.com++) {
                                suspend;
                        }
                        break;
                default:
                        serr | "Error reading next block: '" | this.text |"', returned" | ret;
                        exit(2);
                }

                if(this.text[0] == '\0') break;
        }
        this.com = -1;
}