Check input device is a terminal: Difference between revisions

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Revision as of 22:55, 10 April 2023 (view source) Christophoro S (talk \| contribs) (Dialects of BASIC moved to the BASIC section.) ← Older edit		Latest revision as of 10:47, 17 November 2023 (view source) PureFox (talk \| contribs) m (→‎{{header\|Wren}}: Changed to Wren S/H)
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Line 67: </syntaxhighlight> ==={{header\|FutureBasic}}===▼ <syntaxhighlight lang="futurebasic">▼ include "NSLog.incl"▼ BeginCCode▼ if (isatty(fileno(stdin)))▼ NSLog( @"stdin is connected to a terminal" );▼ else▼ NSLog( @"stdin is NOT connected to a terminal" );▼ EndC▼ HandleEvents▼ </syntaxhighlight>▼ {{output}}▼ <pre>▼ stdin is NOT connected to a terminal▼ </pre>▼ =={{header\|C}}== Line 189 ⟶ 172: C:\test < in.txt Input doesn't come from tty.</pre> =={{header\|Forth}}== {{works with\|gforth\|0.7.3}} In Gforth, the word "source-id" is used to determine the program source. If you got a program file "source.f": <syntaxhighlight lang="Forth"> : ?tty source-id if ." not " then ." from terminal" ; ?tty bye ▲</syntaxhighlight> Then, <syntaxhighlight lang="bash">gforth source.f</syntaxhighlight> in the shell will display: {{out}}<pre>not from terminal</pre> Then, <syntaxhighlight lang="bash">gforth -e ': ?tty source-id if ." not " then ." from terminal" ; ?tty bye'</syntaxhighlight> will display: {{out}}<pre>not from terminal</pre> At Gforth prompt, <syntaxhighlight lang="bash">: ?tty source-id if ." not " then ." from terminal" ; ?tty bye</syntaxhighlight> will display: {{out}}<pre>from terminal</pre> ▲==={{header\|FutureBasic}}=== ▲<syntaxhighlight lang="futurebasic"> ▲include "NSLog.incl" ▲BeginCCode ▲ if (isatty(fileno(stdin))) ▲ NSLog( @"stdin is connected to a terminal" ); ▲ else ▲ NSLog( @"stdin is NOT connected to a terminal" ); ▲EndC ▲HandleEvents </syntaxhighlight> ▲{{output}} ▲<pre> ▲stdin is NOT connected to a terminal ▲</pre> =={{header\|Go}}== Line 491 ⟶ 514: if [ -t 0 ] then echo "Input is ~~NOT~~ a terminal"▼ ~~then~~ else echo "Input is NOT a terminal" ~~else~~ ▲ echo "Input is NOT a terminal" fi</syntaxhighlight> =={{header\|Wren}}== <syntaxhighlight lang="~~ecmascript~~wren">import "io" for Stdin System.print("Input device is a terminal? %(Stdin.isTerminal ? "Yes" : "No")")</syntaxhighlight> Line 505 ⟶ 527: Input device is a terminal? Yes </pre> =={{header\|zkl}}== On Unix, check to see if stdin's st_mode is a character device.