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authorIgor Pashev <pashev.igor@gmail.com>2013-01-28 19:02:21 +0000
committerIgor Pashev <pashev.igor@gmail.com>2013-01-28 19:02:21 +0000
commitf627f77f23d1497c9e1f4269b5c8812d12b42f18 (patch)
tree708772d83a8355e25155cf233d5a9e38f8ad4d96 /ipl/packs/loadfuncpp/examples/carl.icn
parent6ab0c0f5bf14ed9c15370407b9ee7e0b4b089ae1 (diff)
downloadicon-f627f77f23d1497c9e1f4269b5c8812d12b42f18.tar.gz
Imported Upstream version 9.5.0upstream/9.5.0upstream
Diffstat (limited to 'ipl/packs/loadfuncpp/examples/carl.icn')
-rw-r--r--ipl/packs/loadfuncpp/examples/carl.icn50
1 files changed, 50 insertions, 0 deletions
diff --git a/ipl/packs/loadfuncpp/examples/carl.icn b/ipl/packs/loadfuncpp/examples/carl.icn
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+
+#here's cat in icon (line by line):
+
+procedure main()
+ while write(read()) #fails when eof
+end
+
+#here's writing out the command line arguments
+
+procedure main(arg) #passed a list of strings
+ every write( !arg) # ! (bang) makes a generator sequence
+end
+
+#here's finding all lines in standard input containing "frog"
+
+procedure main()
+ while line := read() do line ? #string matching subject is line
+ if find("frog") then write(line)
+end
+
+#here's finding the text on each line that contains "frog" that
+#lies before the first occurrence of "frog"
+
+procedure main()
+ while line := read() do line ? #string matching subject is line
+ write( tab(find("frog")) )
+end
+
+#here's generating the first 1000 squares
+
+procedure main()
+ every write( squares() ) \1000 #truncate generator to 1000 results
+end
+
+procedure squares()
+ n := 0
+ repeat {
+ n +:= 1
+ suspend n^2 #shoot out next element of generator sequence
+ }
+end
+
+procedure main()
+ (n := 1) | |( n +:= 1, n^2 )
+end
+
+#So that
+procedure main()
+ every write( (n := 1) | |( n +:= 1, n^2 ) ) \1000
+end