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Text File | 1990-04-11 | 7KB | 190 lines

****************************************************************** *** VECTOR.PRG ** ** (C) Copyright 1990, Sub Rosa Publishing Inc. ** A demonstration program provided to SR-Info and VP-Info users. ** This program may be copied freely. If it is used in commercial code, ** please credit the source, Sub Rosa Publishing Inc. ** * VECTOR.prg demonstration of correct use of data files put * into use with macros, combined with referencing * its fields by vector referencing. Note: a data * file must be placed into use (normally with the * COMPILE keyword) before the USE macro command. * Also uses screen-switching techniques for fun. * (Author: Sidney L. Bursten) ****************************************************************** * Data file: MATRIX.DBF * Number of records: 0 * File number: #1 * Field Name Type Width Dec * 1 FLD1 C 1 * 2 FLD2 C 1 * 3 FLD3 C 1 * 4 FLD4 C 1 * 5 FLD5 C 1 * 6 FLD6 C 1 * 7 FLD7 C 1 * 8 FLD8 C 1 * 9 FLD9 C 1 * 10 FLD10 C 1 * 11 FLD11 C 1 * 12 FLD12 C 1 * 13 FLD13 C 1 * 14 FLD14 C 1 * 15 FLD15 C 1 * 16 FLD16 C 1 * 17 FLD17 C 1 * 18 FLD18 C 1 * 19 FLD19 C 1 * 20 FLD20 C 1 * 21 FLD21 C 1 * 22 FLD22 C 1 * 23 FLD23 C 1 * 24 FLD24 C 1 * 25 FLD25 C 1 * 26 FLD26 C 1 * 27 FLD27 C 1 * 28 FLD28 C 1 * 29 FLD29 C 1 * 30 FLD30 C 1 * 31 FLD31 C 1 * 32 FLD32 C 1 * 33 FLD33 C 1 * 34 FLD34 C 1 * 35 FLD35 C 1 * 36 FLD36 C 1 * 37 FLD37 C 1 * 38 FLD38 C 1 * 39 FLD39 C 1 * 40 FLD40 C 1 * 41 FLD41 C 1 * 42 FLD42 C 1 * 43 FLD43 C 1 * 44 FLD44 C 1 * 45 FLD45 C 1 * 46 FLD46 C 1 * 47 FLD47 C 1 * 48 FLD48 C 1 * 49 FLD49 C 1 * 50 FLD50 C 1 * 51 FLD51 C 1 * 52 FLD52 C 1 * 53 FLD53 C 1 * 54 FLD54 C 1 * 55 FLD55 C 1 * 56 FLD56 C 1 * 57 FLD57 C 1 * 58 FLD58 C 1 * 59 FLD59 C 1 * 60 FLD60 C 1 * 61 FLD61 C 1 * 62 FLD62 C 1 * 63 FLD63 C 1 * 64 FLD64 C 1 * 65 FLD65 C 1 * 66 FLD66 C 1 * 67 FLD67 C 1 * 68 FLD68 C 1 * 69 FLD69 C 1 * 70 FLD70 C 1 * 71 FLD71 C 1 * 72 FLD72 C 1 * 73 FLD73 C 1 * 74 FLD74 C 1 * 75 FLD75 C 1 * 76 FLD76 C 1 * 77 FLD77 C 1 * 78 FLD78 C 1 * 79 FLD79 C 1 * 80 FLD80 C 1 * 81 FLD81 C 1 * 82 FLD82 C 1 * 83 FLD83 C 1 * 84 FLD84 C 1 * 85 FLD85 C 1 * 86 FLD86 C 1 * 87 FLD87 C 1 * 88 FLD88 C 1 * 89 FLD89 C 1 * 90 FLD90 C 1 * 91 FLD91 C 1 * 92 FLD92 C 1 * 93 FLD93 C 1 * 94 FLD94 C 1 * 95 FLD95 C 1 * 96 FLD96 C 1 * 97 FLD97 C 1 * 98 FLD98 C 1 * 99 FLD99 C 1 * 100 FLD100 C 1 * 101 FLD101 C 1 * 102 FLD102 C 1 * 103 FLD103 C 1 * 104 FLD104 C 1 * 105 FLD105 C 1 * 106 FLD106 C 1 * 107 FLD107 C 1 * 108 FLD108 C 1 * 109 FLD109 C 1 * 110 FLD110 C 1 * 111 FLD111 C 1 * 112 FLD112 C 1 * 113 FLD113 C 1 * 114 FLD114 C 1 * 115 FLD115 C 1 * 116 FLD116 C 1 * 117 FLD117 C 1 * 118 FLD118 C 1 * 119 FLD119 C 1 * 120 FLD120 C 1 * 121 FLD121 C 1 * 122 FLD122 C 1 * 123 FLD123 C 1 * 124 FLD124 C 1 * 125 FLD125 C 1 * 126 FLD126 C 1 * 127 FLD127 C 1 * 128 FLD128 C 1 * ** Record Length ** 129 * CLS TEXT VECTOR.prg demonstration of correct use of data files put into use with macros, combined with referencing its fields by vector referencing. Note: a data file must be placed into use (normally with the COMPILE keyword) before the USE macro command. Also uses screen-switching techniques for fun. ENDTEXT ? DIR *.dbf blanks=replace(blank(11),' ','.') USE matrix compile CURSOR 22,0 ACCEPT "Enter file name... " to fil_nam CLS USE &fil_nam SCREEN 1,2 SCREEN 2 DO WHILE .not. eof CURSOR 0,20 ?? 'Record',ltrim(str(#,8)),'of',ltrim(str(dbf(recs),8)),'records' REPEAT dbf(fld) times varying fnum fld_name=insert(blanks,trim(fld(name,fnum)),1) ? fld_name,matrix[fnum] IF fnum=dbf(fld) .or. row()>20 @ 24,40 say 'Press spacebar to continue...' SCREEN 2,1 SCREEN 1 CURSOR 24,75 ok=inkey() SCREEN 2 CLS ENDIF ENDREPEAT SKIP ENDDO SCREEN 1 @ 24,0 CURSOR 23,0