Input loop: Difference between revisions
Content added Content deleted
m (Put Commodore BASIC in alphabetical order for the examples listed under BASIC.) |
(Opening command channel needs to be taken out of loop to avoid "?File Already Open" errors. Also initialize F$ each time, as null input results in F$ retaining last used value.) |
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<lang CommodoreBASICv2> |
<lang CommodoreBASICv2> |
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10 rem input loop - rosetta code |
10 rem input loop - rosetta code |
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11 rem open command channel, clear screen, switch to lower case |
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12 open 15,8,15 |
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15 print chr$(147);chr$(14);f$="" |
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20 input "Enter filename";f$ |
20 input "Enter filename";f$ |
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25 if f$="" then end |
25 if f$="" then end |
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30 |
30 open 5,8,5,f$+",s,r" |
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40 gosub 1000 |
40 gosub 1000 |
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50 if er=62 then print "That file is not found... Try again.":goto 20 |
50 if er=62 then print "That file is not found... Try again.":close 5:goto 20 |
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60 if er<>0 then print "There was an unexpected error.":gosub 1100 |
60 if er<>0 then print "There was an unexpected error.":close 5:gosub 1100 |
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70 get#5,a$ |
70 get#5,a$ |
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1120 return |
1120 return |
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</lang> |
</lang> |
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==={{header|IS-BASIC}}=== |
==={{header|IS-BASIC}}=== |
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