[dfa4360] | 1 | // |
---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo |
---|
| 3 | // |
---|
| 4 | // The contents of this file are covered under the licence agreement in the |
---|
| 5 | // file "LICENCE" distributed with Cforall. |
---|
| 6 | // |
---|
| 7 | // fmtLines.cc -- |
---|
| 8 | // |
---|
| 9 | // Author : Peter A. Buhr |
---|
| 10 | // Created On : Sun Sep 17 21:56:15 2017 |
---|
| 11 | // Last Modified By : Peter A. Buhr |
---|
| 12 | // Last Modified On : Fri Mar 22 13:41:03 2019 |
---|
| 13 | // Update Count : 33 |
---|
| 14 | // |
---|
| 15 | |
---|
| 16 | #include <fstream.hfa> |
---|
| 17 | #include <coroutine.hfa> |
---|
| 18 | |
---|
| 19 | coroutine Format { |
---|
| 20 | char ch; // used for communication |
---|
| 21 | int g, b; // global because used in destructor |
---|
| 22 | }; |
---|
| 23 | |
---|
| 24 | void ?{}( Format & fmt ) { |
---|
| 25 | resume( fmt ); // start coroutine |
---|
| 26 | } |
---|
| 27 | |
---|
| 28 | void ^?{}( Format & fmt ) { |
---|
| 29 | if ( fmt.g != 0 || fmt.b != 0 ) sout | nl; |
---|
| 30 | } |
---|
| 31 | |
---|
| 32 | void main( Format & fmt ) { |
---|
| 33 | for ( ;; ) { // for as many characters |
---|
| 34 | for ( fmt.g = 0; fmt.g < 5; fmt.g += 1 ) { // groups of 5 blocks |
---|
| 35 | for ( fmt.b = 0; fmt.b < 4; fmt.b += 1 ) { // blocks of 4 characters |
---|
| 36 | for ( ;; ) { // for newline characters |
---|
| 37 | suspend; |
---|
| 38 | if ( fmt.ch != '\n' ) break; // ignore newline |
---|
| 39 | } // for |
---|
| 40 | sout | fmt.ch; // print character |
---|
| 41 | } // for |
---|
| 42 | sout | " "; // print block separator |
---|
| 43 | } // for |
---|
| 44 | sout | nl; // print group separator |
---|
| 45 | } // for |
---|
| 46 | } // main |
---|
| 47 | |
---|
| 48 | void prt( Format & fmt, char ch ) { |
---|
| 49 | fmt.ch = ch; |
---|
| 50 | resume( fmt ); |
---|
| 51 | } // prt |
---|
| 52 | |
---|
| 53 | int main() { |
---|
| 54 | Format fmt; |
---|
| 55 | char ch; |
---|
| 56 | |
---|
| 57 | for ( ;; ) { |
---|
| 58 | sin | ch; // read one character |
---|
| 59 | if ( eof( sin ) ) break; // eof ? |
---|
| 60 | prt( fmt, ch ); |
---|
| 61 | } // for |
---|
| 62 | } // main |
---|
| 63 | |
---|
| 64 | // Local Variables: // |
---|
| 65 | // tab-width: 4 // |
---|
| 66 | // compile-command: "cfa fmtLines.cfa" // |
---|
| 67 | // End: // |
---|