Hana 9e216da9ef go.mod: add go.mod and move pygments to third_party
After go1.16, go will use module mode by default,
even when the repository is checked out under GOPATH
or in a one-off directory. Add go.mod, go.sum to keep
this repo buildable without opting out of the module
mode.

> go mod init github.com/mmcgrana/gobyexample
> go mod tidy
> go mod vendor

In module mode, the 'vendor' directory is special
and its contents will be actively maintained by the
go command. pygments aren't the dependency the go will
know about, so it will delete the contents from vendor
directory. Move it to `third_party` directory now.

And, vendor the blackfriday package.

Note: the tutorial contents are not affected by the
change in go1.16 because all the examples in this
tutorial ask users to run the go command with the
explicit list of files to be compiled (e.g.
`go run hello-world.go` or `go build command-line-arguments.go`).
When the source list is provided, the go command does
not have to compute the build list and whether it's
running in GOPATH mode or module mode becomes irrelevant.
2021-02-15 16:45:26 -05:00

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# Example of a Riverbed TrafficScript (*.rts) file.
http.setHeader( "Host", "secure.mysite.com" );
$body = http.getBody( ); # get the POST data
$single = 'Hello \
world';
$double = "Hello \
world";
$pi = 3.14157;
$message = "The URL path is " . http.GetPath();
$four = 2 + 2;
# Sets $ratio to "75%" (for example)
$ratio = ( $a / ($a + $b) * 100 ) . "%";
$contentLength = http.getHeader( "Content-Length" );
if( $contentLength > 1024 * 1024 ) {
log.warn( "Large request body: ".$contentLength );
}
4 + 7.5 * $a
-$b / $c - 1
7 % 3 # Returns 1
"foo" && !0 # true
( 1 < 2 ) && ( 3 < 4 ) # true
$a || $b # true if $a or $b is true
0x1234 & 255 # 0x34
1|2|4 #7
1^3 #2
~1 & 0xffff # 65534
1 << 2 # 4
2 >> 1 # 1
$foo *= 5 # Product equals ($foo = $foo * 5)
$foo /= 2 # Quotient equals ($foo = $foo / 5)
$foo %= 2 # Modulo equals ($foo = $foo % 5)
$foo <<= 2 # Bit-shift left equals ($foo = $foo << 2)
$foo >>= 2 # Bit-shift right equals ($foo = $foo >> 2)
$foo &= 2 # Bitwise AND equals ($foo = $foo & 2)
$foo |= 2 # Bitwise OR equals ($foo = $foo | 2)
$foo ^= 2 # Bitwise XOR equals ($foo = $foo ^ 2)
$int = 10;
$double = 2.71828;
string.len( $double ); # casts to string, returns 7
# Convert $string to a number, and add 4:
$r = $string + 4; # $r is 14
if( string.startsWith( $path, "/secure" ) ) {
pool.use( "secure pool" );
} else {
pool.use( "non-secure pool" );
}
for( $count = 0; $count < 10; $count++ ) {
log.info( "In loop, count = " . $count );
}
i$count = 0;
while( $count < 10 ) {
log.info( "In loop, count = " . $count );
$count = $count + 1;
}
$count = 0;
do {
log.info( "In loop, count = " . $count );
$count = $count + 1;
} while( $count < 10 );
$mime = http.getResponseHeader( "Content-Type" );
if( !string.startsWith( $mime, "text/html" )) break;
$array = [ "Alex", "Matt", "Oliver", "Laurence" ];
$someone = $array[0];
$arraylen = array.length($array);
log.info("My array has " . $arraylen . " elements.\n");
for ( $i = 0; $i < $arraylen; $i++ ){
log.info ( "Element #" . $i . " " . $array[$i]);
}
$hash = [ "orange" => "fruit",
"apple" => "fruit",
"cabbage" => "vegetable",
"pear" => "fruit" ];
foreach ( $key in hash.keys($hash)){
log.info("Key: " . $key . "; Value: " . $hash[$key] .
";"); }
# Declare a subroutine to calculate factorials
sub factorial( $n ) {
if( $n == 0 ) return 1;
return $n*factorial( $n-1 );
}
# Put entries into the array
$c = 0;
while( $c <= 10 ) {
$msg = "Did you know that ". $c ."! is ". factorial( $c )
."?" ;
data.set( "myarray".$c, $msg );
$c++; }
# Look up several entries. Note: the 1000th entry is empty
$msg = "";
$msg .= "Index 1000: ".data.get( "myarray1000" )."\n";
# delete the entire array (but no other data stored by data.set)
data.reset( "myarray" );
http.sendResponse( "200 OK", "text/plain", $msg, "" );
sub headbug(){
# Prints each header to the event log.
$headers = http.listHeaderNames();
foreach ($header in $headers){
log.info( $header . ": " . http.getheader($header));
} }
import foo;
foo.headbug();
# Sets the regex string as ^192\.168\. ; the two examples
# below have the same effect
$regex = "^(192)\\.168\\.";
$regex = '^192\.168\.';
if ( string.regexMatch( $ip, $regex ) ) {
# IP is on 192.168.* network
}