[73abe95] | 1 | // |
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[e06be49] | 2 | // Cforall Version 1.0.0 Copyright (C) 2017 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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[73abe95] | 6 | // |
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| 7 | // fmtLines.cc -- |
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| 8 | // |
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[e06be49] | 9 | // Author : Peter A. Buhr |
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| 10 | // Created On : Sun Sep 17 21:56:15 2017 |
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| 11 | // Last Modified By : Peter A. Buhr |
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[f8cd310] | 12 | // Last Modified On : Fri Mar 22 13:41:03 2019 |
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| 13 | // Update Count : 33 |
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[73abe95] | 14 | // |
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[e06be49] | 15 | |
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[73abe95] | 16 | #include <fstream.hfa> |
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| 17 | #include <coroutine.hfa> |
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[e06be49] | 18 | |
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| 19 | coroutine Format { |
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| 20 | char ch; // used for communication |
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| 21 | int g, b; // global because used in destructor |
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| 22 | }; |
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| 23 | |
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| 24 | void ?{}( Format & fmt ) { |
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| 25 | resume( fmt ); // start coroutine |
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| 26 | } |
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| 27 | |
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| 28 | void ^?{}( Format & fmt ) { |
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[200fcb3] | 29 | if ( fmt.g != 0 || fmt.b != 0 ) sout | nl; |
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[e06be49] | 30 | } |
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| 31 | |
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| 32 | void main( Format & fmt ) { |
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| 33 | for ( ;; ) { // for as many characters |
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| 34 | for ( fmt.g = 0; fmt.g < 5; fmt.g += 1 ) { // groups of 5 blocks |
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| 35 | for ( fmt.b = 0; fmt.b < 4; fmt.b += 1 ) { // blocks of 4 characters |
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| 36 | for ( ;; ) { // for newline characters |
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[427854b] | 37 | suspend; |
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[e06be49] | 38 | if ( fmt.ch != '\n' ) break; // ignore newline |
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| 39 | } // for |
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| 40 | sout | fmt.ch; // print character |
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| 41 | } // for |
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| 42 | sout | " "; // print block separator |
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| 43 | } // for |
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[200fcb3] | 44 | sout | nl; // print group separator |
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[e06be49] | 45 | } // for |
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| 46 | } // main |
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| 47 | |
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| 48 | void prt( Format & fmt, char ch ) { |
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| 49 | fmt.ch = ch; |
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| 50 | resume( fmt ); |
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| 51 | } // prt |
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| 52 | |
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| 53 | int main() { |
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| 54 | Format fmt; |
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| 55 | char ch; |
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| 56 | |
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| 57 | for ( ;; ) { |
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| 58 | sin | ch; // read one character |
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| 59 | if ( eof( sin ) ) break; // eof ? |
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| 60 | prt( fmt, ch ); |
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| 61 | } // for |
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| 62 | } // main |
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| 63 | |
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| 64 | // Local Variables: // |
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| 65 | // tab-width: 4 // |
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[f8cd310] | 66 | // compile-command: "cfa fmtLines.cfa" // |
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[e06be49] | 67 | // End: // |
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