| [dfa4360] | 1 | // | 
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|  | 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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|  | 6 | // | 
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|  | 7 | // fmtLines.cfa -- format characters into blocks of 4 and groups of 5 blocks per line | 
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|  | 8 | // | 
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|  | 9 | // Author           : Thierry Delisle | 
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|  | 10 | // Created On       : Thu Mar  5 16:09:08 2020 | 
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|  | 11 | // Last Modified By : | 
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|  | 12 | // Last Modified On : | 
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|  | 13 | // Update Count     : | 
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|  | 14 | // | 
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|  | 15 |  | 
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|  | 16 | #include <fstream.hfa> | 
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|  | 17 |  | 
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|  | 18 | generator Format { | 
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|  | 19 | char ch;                                                                                        // used for communication | 
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|  | 20 | int g, b;                                                                                       // global because used in destructor | 
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|  | 21 | }; | 
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|  | 22 |  | 
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|  | 23 | void main( Format & fmt ) with( fmt ) { | 
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|  | 24 | for () {                                                                                        // for as many characters | 
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|  | 25 | for ( g = 0; g < 5; g += 1 ) {                                  // groups of 5 blocks | 
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|  | 26 | for ( b = 0; b < 4; b += 1 ) {                          // blocks of 4 characters | 
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|  | 27 | for () {                                                                // for newline characters | 
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|  | 28 | suspend; | 
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|  | 29 | if ( ch != '\n' ) break;                              // ignore newline | 
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|  | 30 | } // for | 
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|  | 31 | sout | ch;                                                              // print character | 
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|  | 32 | } // for | 
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|  | 33 | sout | "  ";                                                            // print block separator | 
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|  | 34 | } // for | 
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|  | 35 | sout | nl;                                                                              // print group separator | 
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|  | 36 | } // for | 
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|  | 37 | } // main | 
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|  | 38 |  | 
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|  | 39 | void ?{}( Format & fmt ) { | 
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|  | 40 | resume( fmt );                                                                          // prime (start) coroutine | 
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|  | 41 | } | 
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|  | 42 |  | 
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|  | 43 | void ^?{}( Format & fmt ) with( fmt ) { | 
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|  | 44 | if ( g != 0 || b != 0 ) sout | nl; | 
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|  | 45 | } | 
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|  | 46 |  | 
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|  | 47 | void format( Format & fmt ) { | 
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|  | 48 | resume( fmt ); | 
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|  | 49 | } // format | 
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|  | 50 |  | 
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|  | 51 | int main() { | 
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|  | 52 | Format fmt; | 
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|  | 53 | sout | nlOff;                                                                           // turn off auto newline | 
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|  | 54 |  | 
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|  | 55 | eof: for () {                                                                                 // read until end of file | 
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|  | 56 | sin | fmt.ch;                                                                   // read one character | 
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|  | 57 | if ( eof( sin ) ) break eof;                                          // eof ? | 
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|  | 58 | format( fmt );                                                                  // push character for formatting | 
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|  | 59 | } // for | 
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|  | 60 | } // main | 
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|  | 61 |  | 
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|  | 62 | // Local Variables: // | 
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|  | 63 | // tab-width: 4 // | 
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|  | 64 | // compile-command: "cfa fmtLines.cfa" // | 
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|  | 65 | // End: // | 
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