Execute CopyPasta Language: Difference between revisions
m
→{{header|Wren}}: Changed to Wren S/H
Childishbeat (talk | contribs) (The Execute CopyPasta page has been created.) |
m (→{{header|Wren}}: Changed to Wren S/H) |
||
| (32 intermediate revisions by 9 users not shown) | |||
Line 1:
{{draft task}}
;Task:
Line 9:
| style="text-align:center"| <code>Copy</code> || Copy the text of the following line to the clipboard
|-
| style="text-align:center"| <code>CopyFile</code> || Copy the text of the file cited in the following line to the clipboard or in the case where the next line is
|-
| style="text-align:center"| <code>Duplicate</code> || Duplicate the text in the clipboard as many times as the following line specifies
Line 15:
| style="text-align:center"| <code>Pasta!</code> || Display the clipboard and stop the program
|}
<br>
=={{header|11l}}==
{{trans|Python}}
<syntaxhighlight lang="11l">:start:
V source = File(:argv[1]).read()
V lines = source.split("\n")
V clipboard = ‘’
V loc = 0
L loc < lines.len
V command = lines[loc].trim(‘ ’)
X.try
I (command == ‘Copy’)
clipboard ‘’= lines[loc + 1]
E I (command == ‘CopyFile’)
I (lines[loc + 1] == ‘TheF*ckingCode’)
clipboard ‘’= source
E
V filetext = File(lines[loc + 1]).read()
clipboard ‘’= filetext
E I (command == ‘Duplicate’)
clipboard ‘’= clipboard * ((Int(lines[loc + 1])) - 1)
E I (command == ‘Pasta!’)
print(clipboard)
L.break
E
exit(‘unknown command '’command‘' encountered on line ’(loc + 1))
X.catch
exit(‘error while executing command '’command‘' on line ’(loc + 1))
loc += 2</syntaxhighlight>
=={{header|C++}}==
{{trans|Nanoquery}}
<syntaxhighlight lang="cpp">#include <fstream>
#include <iostream>
#include <sstream>
#include <streambuf>
#include <string>
#include <stdlib.h>
using namespace std;
// a function to handle fatal errors
void fatal_error(string errtext, char *argv[])
{
cout << "%" << errtext << endl;
cout << "usage: " << argv[0] << " [filename.cp]" << endl;
exit(1);
}
// functions to trim strings
// (http://www.martinbroadhurst.com/how-to-trim-a-stdstring.html)
string& ltrim(string& str, const string& chars = "\t\n\v\f\r ")
{
str.erase(0, str.find_first_not_of(chars));
return str;
}
string& rtrim(string& str, const string& chars = "\t\n\v\f\r ")
{
str.erase(str.find_last_not_of(chars) + 1);
return str;
}
string& trim(string& str, const string& chars = "\t\n\v\f\r ")
{
return ltrim(rtrim(str, chars), chars);
}
int main(int argc, char *argv[])
{
// get a filename from the command line and read the file in
string fname = "";
string source = "";
try
{
fname = argv[1];
ifstream t(fname);
t.seekg(0, ios::end);
source.reserve(t.tellg());
t.seekg(0, ios::beg);
source.assign((istreambuf_iterator<char>(t)), istreambuf_iterator<char>());
}
catch(const exception& e)
{
fatal_error("error while trying to read from specified file", argv);
}
// a variable to represent the 'clipboard'
string clipboard = "";
// loop over the lines that were read
int loc = 0;
string remaining = source;
string line = "";
string command = "";
stringstream ss;
while(remaining.find("\n") != string::npos)
{
// check which command is on this line
line = remaining.substr(0, remaining.find("\n"));
command = trim(line);
remaining = remaining.substr(remaining.find("\n") + 1);
try
{
if(line == "Copy")
{
line = remaining.substr(0, remaining.find("\n"));
remaining = remaining.substr(remaining.find("\n") + 1);
clipboard += line;
}
else if(line == "CopyFile")
{
line = remaining.substr(0, remaining.find("\n"));
remaining = remaining.substr(remaining.find("\n") + 1);
if(line == "TheF*ckingCode")
clipboard += source;
else
{
string filetext = "";
ifstream t(line);
t.seekg(0, ios::end);
filetext.reserve(t.tellg());
t.seekg(0, ios::beg);
filetext.assign((istreambuf_iterator<char>(t)), istreambuf_iterator<char>());
clipboard += filetext;
}
}
else if(line == "Duplicate")
{
line = remaining.substr(0, remaining.find("\n"));
remaining = remaining.substr(remaining.find("\n") + 1);
int amount = stoi(line);
string origClipboard = clipboard;
for(int i = 0; i < amount - 1; i++) {
clipboard += origClipboard;
}
}
else if(line == "Pasta!")
{
cout << clipboard << endl;
return 0;
}
else
{
ss << (loc + 1);
fatal_error("unknown command '" + command + "' encounter on line " + ss.str(), argv);
}
}
catch(const exception& e)
{
ss << (loc + 1);
fatal_error("error while executing command '" + command + "' on line " + ss.str(), argv);
}
// increment past the command and the next line
loc += 2;
}
// return in case we never hit a 'Pasta!' statement
return 0;
}</syntaxhighlight>
The following files were used for testing:
<br /><strong>prog1.cp</strong>
<pre>Copy
Rosetta Code
Duplicate
2
Pasta!</pre>
<strong>prog2.cp</strong>
<pre>CopyFile
pasta.txt
Duplicate
1
Pasta!</pre>
<strong>prog3.cp</strong>
<pre>Copy
Invalid
Duplicate
1
Goto
3
Pasta!</pre>
<strong>prog4.cp</strong>
<pre>CopyFile
TheF*ckingCode
Duplicate
2
Pasta!</pre>
<strong>pasta.txt</strong>
<pre>I'm the pasta.txt file.</pre>
{{out}}
<pre>$ ./copypasta prog1.cp
Rosetta CodeRosetta Code
$ ./copypasta prog2.cp
I'm the pasta.txt file.
$ ./copypasta prog3.cp
%unknown command '' encountered on line 5
usage: ./copypasta [filename.cp]
$ ./copypasta prog4.cp
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
$ ./copypasta doesntexist.cp
%error while trying to read from specified file
usage: ./copypasta [filename.cp]
</pre>
=={{header|Go}}==
{{libheader|Clipboard for Go}}
<br>
Here's my tentative attempt at an interpreter for CopyPasta.
I've made the following assumptions:
1. The program to be interpreted is read in from a file whose path is supplied as a command line argument.
2. Writing to the clipboard should always overwrite what (if anything) is already in the clipboard and not append to it.
3. CopyPasta is case sensitive.
4. When writing commands, leading and trailing whitespace should be ignored.
5. Blank commands should be ignored.
6. When a command consumes the following line, that line should not be reprocessed if it is a command itself.
7. The program should terminate with a suitable message if any error is encountered (i.e. no following line, file doesn't exist etc.).
8. When the program is about to end and the contents of the clipboard have (when appropriate) been printed out, the clipboard should be cleared.
<syntaxhighlight lang="go">// copypasta.go
package main
import (
"fmt"
"github.com/atotto/clipboard"
"io/ioutil"
"log"
"os"
"runtime"
"strconv"
"strings"
)
func check(err error) {
if err != nil {
clipboard.WriteAll("") // clear clipboard
log.Fatal(err)
}
}
func interpret(source string) {
source2 := source
if runtime.GOOS == "windows" {
source2 = strings.ReplaceAll(source, "\r\n", "\n")
}
lines := strings.Split(source2, "\n")
le := len(lines)
for i := 0; i < le; i++ {
lines[i] = strings.TrimSpace(lines[i]) // ignore leading & trailing whitespace
switch lines[i] {
case "Copy":
if i == le-1 {
log.Fatal("There are no lines after the Copy command.")
}
i++
err := clipboard.WriteAll(lines[i])
check(err)
case "CopyFile":
if i == le-1 {
log.Fatal("There are no lines after the CopyFile command.")
}
i++
if lines[i] == "TheF*ckingCode" {
err := clipboard.WriteAll(source)
check(err)
} else {
bytes, err := ioutil.ReadFile(lines[i])
check(err)
err = clipboard.WriteAll(string(bytes))
check(err)
}
case "Duplicate":
if i == le-1 {
log.Fatal("There are no lines after the Duplicate command.")
}
i++
times, err := strconv.Atoi(lines[i])
check(err)
if times < 0 {
log.Fatal("Can't duplicate text a negative number of times.")
}
text, err := clipboard.ReadAll()
check(err)
err = clipboard.WriteAll(strings.Repeat(text, times+1))
check(err)
case "Pasta!":
text, err := clipboard.ReadAll()
check(err)
fmt.Println(text)
return
default:
if lines[i] == "" {
continue // ignore blank lines
}
log.Fatal("Unknown command, " + lines[i])
}
}
}
func main() {
if len(os.Args) != 2 {
log.Fatal("There should be exactly one command line argument, the CopyPasta file path.")
}
bytes, err := ioutil.ReadFile(os.Args[1])
check(err)
interpret(string(bytes))
err = clipboard.WriteAll("") // clear clipboard
check(err)
}</syntaxhighlight>
{{out}}
The following files have been used for testing:
<pre>
// prog.cp
Copy
Rosetta Code
Duplicate
2
Pasta!
// prog2.cp
CopyFile
pasta.txt
Duplicate
1
Pasta!
// prog3.txt
Copy
Invalid
Duplicate
1
Goto
3
Pasta!
// pasta.txt
I'm the pasta.txt file.
</pre>
With the following results:
<pre>
$ go build copypasta.go
$ ./copypasta
There should be exactly one command line argument, the CopyPasta file path.
$ ./copypasta prog4.cp
open prog4.cp: no such file or directory
$ ./copypasta prog.cp
Rosetta CodeRosetta CodeRosetta Code
$ ./copypasta prog2.cp
I'm the pasta.txt file.
I'm the pasta.txt file.
$ ./copypasta prog3.cp
Unknown command, Goto
</pre>
=={{header|Java}}==
{{trans|Nanoquery}}
<syntaxhighlight lang="java">import java.io.File;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Arrays;
public class Copypasta
{
// a function to handle fatal errors
public static void fatal_error(String errtext)
{
StackTraceElement[] stack = Thread.currentThread().getStackTrace();
StackTraceElement main = stack[stack.length - 1];
String mainClass = main.getClassName();
System.out.println("%" + errtext);
System.out.println("usage: " + mainClass + " [filename.cp]");
System.exit(1);
}
public static void main(String[] args)
{
// get a filename from the command line and read the file in
String fname = null;
String source = null;
try
{
fname = args[0];
source = new String(Files.readAllBytes(new File(fname).toPath()));
}
catch(Exception e)
{
fatal_error("error while trying to read from specified file");
}
// convert the source to lines of code
ArrayList<String> lines = new ArrayList<String>(Arrays.asList(source.split("\n")));
// a variable to represent the 'clipboard'
String clipboard = "";
// loop over the lines that were read
int loc = 0;
while(loc < lines.size())
{
// check which command is on this line
String command = lines.get(loc).trim();
try
{
if(command.equals("Copy"))
clipboard += lines.get(loc + 1);
else if(command.equals("CopyFile"))
{
if(lines.get(loc + 1).equals("TheF*ckingCode"))
clipboard += source;
else
{
String filetext = new String(Files.readAllBytes(new File(lines.get(loc + 1)).toPath()));
clipboard += filetext;
}
}
else if(command.equals("Duplicate"))
{
String origClipboard = clipboard;
int amount = Integer.parseInt(lines.get(loc + 1)) - 1;
for(int i = 0; i < amount; i++)
clipboard += origClipboard;
}
else if(command.equals("Pasta!"))
{
System.out.println(clipboard);
System.exit(0);
}
else
fatal_error("unknown command '" + command + "' encountered on line " + new Integer(loc + 1).toString());
}
catch(Exception e)
{
fatal_error("error while executing command '" + command + "' on line " + new Integer(loc + 1).toString());
}
// increment past the command and the next line
loc += 2;
}
}
}</syntaxhighlight>
The following files were used for testing:
<br /><strong>prog1.cp</strong>
<pre>Copy
Rosetta Code
Duplicate
2
Pasta!</pre>
<strong>prog2.cp</strong>
<pre>CopyFile
pasta.txt
Duplicate
1
Pasta!</pre>
<strong>prog3.cp</strong>
<pre>Copy
Invalid
Duplicate
1
Goto
3
Pasta!</pre>
<strong>prog4.cp</strong>
<pre>CopyFile
TheF*ckingCode
Duplicate
2
Pasta!</pre>
<strong>pasta.txt</strong>
<pre>I'm the pasta.txt file.</pre>
{{out}}
<pre>$ java Copypasta prog1.cp
Rosetta CodeRosetta Code
$ java Copypasta prog2.cp
I'm the pasta.txt file.
$ java Copypasta prog3.cp
%unknown command '' encountered on line 5
usage: Copypasta [filename.cp]
$ java Copypasta prog4.cp
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
$ java Copypasta doesntexist.cp
%error while trying to read from specified file
usage: Copypasta [filename.cp]
</pre>
=={{header|Julia}}==
<syntaxhighlight lang="julia">
function interpretCopyPasta()
clipboard = String[]
if isempty(ARGS)
println("Usage: interpretcopypasta <filename>")
exit(1)
end
thecode = read(ARGS[1], String)
codelines = String.(strip.(split(thecode, "\n")))
nextline() = popfirst!(codelines)
Copy() = push!(clipboard, nextline())
function CopyFile()
txt = nextline()
push!(clipboard, txt == "TheF*ckingCode" ? thecode : read(txt, String))
end
function Duplicate()
ncopies, txt = parse(Int, nextline()), copy(clipboard)
clipboard = foldl(vcat, [txt for _ in 1:ncopies])
end
Pasta!() = (for t in clipboard, x in split(t, "\n") println(x) end; exit(0))
commands = Dict("Copy" => Copy, "CopyFile" => CopyFile,
"Duplicate" => Duplicate, "Pasta!" => Pasta!)
while !isempty(codelines)
line = nextline()
if haskey(commands, line)
commands[line]()
end
end
end
interpretCopyPasta()
</syntaxhighlight>{{out}}
If run on the following CopyPasta "code" file:
<pre>
Copy
Beginning this run.
CopyFile
TheF*ckingCode
Duplicate
2
Copy
Ending this run.
Pasta!
</pre>
The output is:
<pre>
Beginning this run.
Copy
Beginning this run.
CopyFile
TheF*ckingCode
Duplicate
2
Copy
Ending this run.
Pasta!
Beginning this run.
Copy
Beginning this run.
CopyFile
TheF*ckingCode
Duplicate
2
Copy
Ending this run.
Pasta!
Ending this run.
</pre>
=={{header|Nanoquery}}==
<syntaxhighlight lang="nanoquery">// a function to handle fatal errors
def fatal_error(errtext)
println "%" + errtext
println "usage: " + args[1] + " [filename.cp]"
exit(1)
end
// get a filename from the command line and read the file in
fname = null
source = null
try
fname = args[2]
source = new(Nanoquery.IO.File, fname).readAll()
catch
fatal_error("error while trying to read from specified file")
end
// convert the source to lines of code
lines = split(source, "\n")
// a variable to represent the 'clipboard'
clipboard = ""
// loop over the lines that were read
loc = 0
while (loc < len(lines))
// check which command is on this line
command = trim(lines[loc])
try
if (command = "Copy")
clipboard += lines[loc + 1]
else if (command = "CopyFile")
if (lines[loc + 1] = "TheF*ckingCode")
clipboard += source
else
filetext = new(Nanoquery.IO.File, lines[loc + 1]).readAll()
clipboard += filetext
end
else if (command = "Duplicate")
clipboard += clipboard * ((int(lines[loc + 1])) - 1)
else if (command = "Pasta!")
println clipboard
exit
else
fatal_error("unknown command '" + command + "' encountered on line " + (loc + 1))
end
catch
fatal_error("error while executing command '" + command + "' on line " + (loc + 1))
end
// increment past the command and the next line
loc += 2
end</syntaxhighlight>
The following files were used for testing:
<br /><strong>prog1.cp</strong>
<pre>Copy
Rosetta Code
Duplicate
2
Pasta!</pre>
<strong>prog2.cp</strong>
<pre>CopyFile
pasta.txt
Duplicate
1
Pasta!</pre>
<strong>prog3.cp</strong>
<pre>Copy
Invalid
Duplicate
1
Goto
3
Pasta!</pre>
<strong>prog4.cp</strong>
<pre>CopyFile
TheF*ckingCode
Duplicate
2
Pasta!</pre>
<strong>pasta.txt</strong>
<pre>I'm the pasta.txt file.</pre>
{{out}}
<pre>$ java -jar ../nanoquery-2.3_1845.jar -b copypasta.nq prog1.cp
Rosetta CodeRosetta Code
$ java -jar ../nanoquery-2.3_1845.jar -b copypasta.nq prog2.cp
I'm the pasta.txt file.
$ java -jar ../nanoquery-2.3_1845.jar -b copypasta.nq prog3.cp
%unknown command '' encountered on line 5
usage: copypasta.nq [filename.cp]
$ java -jar ../nanoquery-2.3_1845.jar -b copypasta.nq prog4.cp
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
$ java -jar ../nanoquery-2.3_1845.jar -b copypasta.nq doesntexist.cp
%error while trying to read from specified file
usage: copypasta.nq [filename.cp]
</pre>
=={{header|Nim}}==
<syntaxhighlight lang="nim">import os, strutils
type CopyPastaError = object of CatchableError
template raiseError(message: string, linenum = 0) =
let prefix = if linenum != 0: "Line $1: ".format(linenum) else: ""
raise newException(CopyPastaError, prefix & message)
proc copyPasta() =
## Load and execute a program.
var clipboard: string
if paramCount() != 1:
echo "usage: ", getAppFilename().lastPathPart, " filename.cp"
quit QuitFailure
let path = paramStr(1)
let code = try: path.readFile()
except IOError: raiseError("Unable to read file “$1”.".format(path))
let lines = code.splitLines()
var linenum = 1 # Starting at index one for line number.
while linenum <= lines.len:
let command = lines[linenum - 1].strip()
case command
of "Copy":
if linenum == lines.len: raiseError("missing string to copy.", linenum)
clipboard.add lines[linenum]
of "CopyFile":
if linenum == lines.len: raiseError("missing file to copy from.", linenum)
let fpath = lines[linenum]
if fpath == "TheF*ckingCode":
clipboard.add code
else:
let text = try: fpath.readFile()
except IOError: raiseError("unable to read file “$1”.".format(fpath), linenum)
clipboard.add text
of "Duplicate":
if linenum == lines.len: raiseError("missing number of repetitions.", linenum)
let n = try: lines[linenum].parseInt()
except: raiseError("wrong number of repetitions.", linenum + 1)
clipboard.add repeat(clipboard, n)
of "Pasta!":
stdout.write clipboard
break
of "": # Empty mine: skip.
inc linenum
continue
else:
raiseError("unknown command “$1”.".format(command), linenum)
inc linenum, 2
try:
copyPasta()
except CopyPastaError:
quit getCurrentExceptionMsg(), QuitFailure</syntaxhighlight>
{{out}}
<strong>File “prog1.cp”:</strong>
<pre>Copy
Rosetta Code
Duplicate
2
Pasta!</pre>
Result:
<pre>Rosetta CodeRosetta CodeRosetta Code</pre>
<strong>File “prog2.cp”:</strong>
<pre>CopyFile
pasta.txt
Duplicate
1
Pasta!</pre>
Result:
<pre>I'm the pasta.txt file.
I'm the pasta.txt file.</pre>
<strong>File “prog3.cp”:</strong>
<pre>Copy
Invalid
Duplicate
1
Goto
3
Pasta!</pre>
Result:
<pre>Line 6: unknown command “Goto”.</pre>
<strong>File “prog4.cp”:</strong>
<pre>CopyFile
TheF*ckingCode
Pasta!</pre>
Result:
<pre>CopyFile
TheF*ckingCode
Pasta!</pre>
<strong>File “prog5.cp”:</strong>
<pre>Copy
Rosetta code
Duplicate
A
Pasta!</pre>
Result:
<pre>Line 4: wrong number of repetitions.</pre>
=={{header|Perl}}==
<syntaxhighlight lang="perl">use strict;
use warnings;
use feature 'say';
use Path::Tiny;
sub CopyPasta {
my($code) = @_;
my @code = split /\n/, $code =~ s/\s*\n+\s*/\n/gr;
return "Program never ends!" unless grep { $_ eq 'Pasta!' } @code;
my @cb;
my $PC = 0;
while (1) {
if ($code[$PC] eq 'Copy') { push @cb, $code[++$PC] }
elsif ($code[$PC] eq 'CopyFile') { $PC++; push @cb, join ' ', $code[$PC] eq 'TheF*ckingCode' ? @code : path($code[$PC])->slurp }
elsif ($code[$PC] eq 'Duplicate') { @cb = (@cb) x $code[++$PC] }
elsif ($code[$PC] eq 'Pasta!') { return @cb }
else { return "Does not compute: $code[$PC]" }
$PC++;
}
}
path('pasta.txt')->spew( "I'm the pasta.txt file.");
for my $prog (
"Copy \nRosetta Code\n\tDuplicate\n2\n\nPasta!\nLa Vista",
"CopyFile\npasta.txt\nDuplicate\n1\nPasta!",
"Copy\nInvalid\n Duplicate\n1\n\nGoto\n3\nPasta!",
"CopyFile\nTheF*ckingCode\nDuplicate\n2\nPasta!",
"Copy\nRosetta Code\nDuplicate\n2\n\nPasta"
) {
say for CopyPasta($prog);
say '';
}
unlink 'pasta.txt';</syntaxhighlight>
{{out}}
<pre>Rosetta Code
Rosetta Code
I'm the pasta.txt file.
Does not compute: Goto
CopyFile TheF*ckingCode Duplicate 2 Pasta!
CopyFile TheF*ckingCode Duplicate 2 Pasta!
Program never ends!</pre>
=={{header|Phix}}==
Fakes four files so it can be run w/o any fiddly setup, but will handle (differently-named!) real files as well.<br>
If run without command-line parameters it fakes four runs.<br>
Assumes if clipboard is "hello ", Duplicate 2 should leave it as "hello hello hello ".
<!--<syntaxhighlight lang="phix">(phixonline)-->
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">constant</span> <span style="color: #000000;">prog1_cp</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"""
Copy
Rosetta Code
Duplicate
2
Pasta!
La Vista
"""</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">prog2_cp</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"""
CopyFile
pasta.txt
Duplicate
1
Pasta!
"""</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">prog3_cp</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"""
Copy
Invalid
Duplicate
1
Goto
3
Pasta!
"""</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">pasta_txt</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">"""
I'm the pasta.txt file.
"""</span><span style="color: #0000FF;">,</span>
<span style="color: #000000;">fake_files</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"prog1.cp"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"prog2.cp"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"prog3.cp"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"pasta.txt"</span><span style="color: #0000FF;">},</span>
<span style="color: #000000;">fake_texts</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span> <span style="color: #000000;">prog1_cp</span> <span style="color: #0000FF;">,</span> <span style="color: #000000;">prog2_cp</span> <span style="color: #0000FF;">,</span> <span style="color: #000000;">prog3_cp</span> <span style="color: #0000FF;">,</span> <span style="color: #000000;">pasta_txt</span> <span style="color: #0000FF;">}</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">get_file_lines</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">lines</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">k</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span><span style="color: #000000;">fake_files</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">k</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">lines</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">split</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fake_texts</span><span style="color: #0000FF;">[</span><span style="color: #000000;">k</span><span style="color: #0000FF;">],</span><span style="color: #008000;">"\n"</span><span style="color: #0000FF;">,</span><span style="color: #004600;">false</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">elsif</span> <span style="color: #7060A8;">platform</span><span style="color: #0000FF;">()=</span><span style="color: #004600;">JS</span>
<span style="color: #008080;">or</span> <span style="color: #7060A8;">get_file_type</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)!=</span><span style="color: #004600;">FILETYPE_FILE</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"file not found:%s"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">else</span>
<span style="color: #000000;">lines</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">get_text</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span><span style="color: #004600;">GT_LF_STRIPPED</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">lines</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">procedure</span> <span style="color: #000000;">interpret</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">filename</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">printf</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"\ninterpret(%s):\n"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">})</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">pgm</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">get_file_lines</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">)&{</span><span style="color: #008000;">""</span><span style="color: #0000FF;">}</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">clipboard</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span>
<span style="color: #004080;">integer</span> <span style="color: #000000;">pc</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">pc</span><span style="color: #0000FF;">>=</span><span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pgm</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"No Pasta! Sucha mistaka to maka"</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #004080;">string</span> <span style="color: #000000;">cmd</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">trim</span><span style="color: #0000FF;">(</span><span style="color: #000000;">pgm</span><span style="color: #0000FF;">[</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">]),</span> <span style="color: #000000;">arg</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">pgm</span><span style="color: #0000FF;">[</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">switch</span> <span style="color: #000000;">cmd</span> <span style="color: #008080;">do</span>
<span style="color: #008080;">case</span> <span style="color: #008000;">"Copy"</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">clipboard</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">arg</span><span style="color: #0000FF;">&</span><span style="color: #008000;">"\n"</span>
<span style="color: #008080;">case</span> <span style="color: #008000;">"CopyFile"</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">clipboard</span> <span style="color: #0000FF;">&=</span> <span style="color: #7060A8;">join</span><span style="color: #0000FF;">(</span><span style="color: #008080;">iff</span><span style="color: #0000FF;">(</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">=</span><span style="color: #008000;">"TheF*ckingCode"</span><span style="color: #0000FF;">?</span><span style="color: #000000;">pgm</span><span style="color: #0000FF;">:</span><span style="color: #000000;">get_file_lines</span><span style="color: #0000FF;">(</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">)),</span><span style="color: #008000;">"\n"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">case</span> <span style="color: #008000;">"Duplicate"</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">clipboard</span> <span style="color: #0000FF;">&=</span> <span style="color: #7060A8;">join</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #000000;">clipboard</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">to_integer</span><span style="color: #0000FF;">(</span><span style="color: #000000;">arg</span><span style="color: #0000FF;">)),</span><span style="color: #008000;">""</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">case</span> <span style="color: #008000;">"Pasta!"</span><span style="color: #0000FF;">:</span> <span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #000000;">clipboard</span><span style="color: #0000FF;">);</span> <span style="color: #008080;">return</span>
<span style="color: #008080;">case</span> <span style="color: #008000;">""</span><span style="color: #0000FF;">:</span> <span style="color: #000000;">pc</span> <span style="color: #0000FF;">-=</span> <span style="color: #000000;">1</span><span style="color: #0000FF;">;</span> <span style="color: #008080;">break</span> <span style="color: #000080;font-style:italic;">-- (skip blank lines [w/o arg])</span>
<span style="color: #008080;">else</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"unknown command: %s on line %d"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">cmd</span><span style="color: #0000FF;">,</span><span style="color: #000000;">pc</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">switch</span>
<span style="color: #000000;">pc</span> <span style="color: #0000FF;">+=</span> <span style="color: #000000;">2</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
<span style="color: #008080;">procedure</span> <span style="color: #000000;">main</span><span style="color: #0000FF;">()</span>
<span style="color: #004080;">sequence</span> <span style="color: #000000;">cl</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">command_line</span><span style="color: #0000FF;">()</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cl</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">2</span> <span style="color: #008080;">then</span>
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">4</span> <span style="color: #008080;">do</span>
<span style="color: #008080;">try</span>
<span style="color: #000000;">interpret</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">sprintf</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"prog%d.cp"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">i</span><span style="color: #0000FF;">))</span>
<span style="color: #008080;">catch</span> <span style="color: #000000;">e</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">e</span><span style="color: #0000FF;">[</span><span style="color: #004600;">E_USER</span><span style="color: #0000FF;">]</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">try</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
<span style="color: #008080;">elsif</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cl</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">3</span> <span style="color: #008080;">then</span>
<span style="color: #000000;">interpret</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cl</span><span style="color: #0000FF;">[</span><span style="color: #000000;">3</span><span style="color: #0000FF;">])</span>
<span style="color: #008080;">else</span>
<span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"usage: CopyPasta filename"</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
<span style="color: #000000;">main</span><span style="color: #0000FF;">()</span>
<!--</syntaxhighlight>-->
{{out}}
<pre>
interpret(prog1.cp):
Rosetta Code
Rosetta Code
Rosetta Code
interpret(prog2.cp):
I'm the pasta.txt file.
I'm the pasta.txt file.
interpret(prog3.cp):
"crash(unknown command: Goto on line 6)"
interpret(prog4.cp):
"crash(file not found:prog4.cp)"
</pre>
=={{header|Python}}==
{{trans|Nanoquery}}
<syntaxhighlight lang="python">import sys
# a function to handle fatal errors
def fatal_error(errtext):
print("%" + errtext)
print("usage: " + sys.argv[0] + " [filename.cp]")
sys.exit(1)
# get a filename from the command line and read the file in
fname = None
source = None
try:
fname = sys.argv[1]
source = open(fname).read()
except:
fatal_error("error while trying to read from specified file")
# convert the source to lines of code
lines = source.split("\n")
# a variable to represent the 'clipboard'
clipboard = ""
# loop over the lines that were read
loc = 0
while(loc < len(lines)):
# check which command is on this line
command = lines[loc].strip()
try:
if(command == "Copy"):
clipboard += lines[loc + 1]
elif(command == "CopyFile"):
if(lines[loc + 1] == "TheF*ckingCode"):
clipboard += source
else:
filetext = open(lines[loc+1]).read()
clipboard += filetext
elif(command == "Duplicate"):
clipboard += clipboard * ((int(lines[loc + 1])) - 1)
elif(command == "Pasta!"):
print(clipboard)
sys.exit(0)
else:
fatal_error("unknown command '" + command + "' encountered on line " + str(loc + 1))
except Exception as e:
fatal_error("error while executing command '" + command + "' on line " + str(loc + 1) + ": " + e)
# increment past the command and the next line
loc += 2
</syntaxhighlight>
The following files were used for testing:
<br /><strong>prog1.cp</strong>
<pre>Copy
Rosetta Code
Duplicate
2
Pasta!</pre>
<strong>prog2.cp</strong>
<pre>CopyFile
pasta.txt
Duplicate
1
Pasta!</pre>
<strong>prog3.cp</strong>
<pre>Copy
Invalid
Duplicate
1
Goto
3
Pasta!</pre>
<strong>prog4.cp</strong>
<pre>CopyFile
TheF*ckingCode
Duplicate
2
Pasta!</pre>
<strong>pasta.txt</strong>
<pre>I'm the pasta.txt file.</pre>
{{out}}
<pre>$ python3 copypasta.py prog1.cp
Rosetta CodeRosetta Code
$ python3 copypasta.py prog2.cp
I'm the pasta.txt file.
$ python3 copypasta.py prog3.cp
%unknown command '' encountered on line 5
usage: copypasta.nq [filename.cp]
$ python3 copypasta.py prog4.cp
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
CopyFile
TheF*ckingCode
Duplicate
2
Pasta!
$ python3 copypasta.py doesntexist.cp
%error while trying to read from specified file
usage: copypasta.nq [filename.cp]
</pre>
=={{header|Raku}}==
(formerly Perl 6)
<syntaxhighlight lang="raku" line>sub CopyPasta ($code) {
my @code = $code.split("\n")>>.trim.grep: *.so;
return "Program never ends!" unless grep { $_ eq 'Pasta!' }, @code;
my @cb;
my $PC = 0;
loop {
given @code[$PC] {
when 'Copy' { @cb.push: @code[++$PC] }
when 'CopyFile' { $PC++; @cb.push: @code[$PC] eq 'TheF*ckingCode' ?? @code !! slurp @code[$PC] }
when 'Duplicate' { @cb = (flat @cb) xx @code[++$PC] }
when 'Pasta!' { return @cb }
default { return "Does not compute: @code[$PC]" }
}
$PC++;
}
}
spurt 'pasta.txt', "I'm the pasta.txt file.";
(say $_ for .&CopyPasta; say '')
for
"Copy \nRosetta Code\n\tDuplicate\n2\n\nPasta!\nLa Vista",
"CopyFile\npasta.txt\nDuplicate\n1\nPasta!",
"Copy\nInvalid\n Duplicate\n1\n\nGoto\n3\nPasta!",
"CopyFile\nTheF*ckingCode\nDuplicate\n2\nPasta!",
"Copy\nRosetta Code\nDuplicate\n2\n\nPasta";
unlink 'pasta.txt';</syntaxhighlight>
{{out}}
<pre>Rosetta Code
Rosetta Code
I'm the pasta.txt file.
Does not compute: Goto
CopyFile TheF*ckingCode Duplicate 2 Pasta!
CopyFile TheF*ckingCode Duplicate 2 Pasta!
Program never ends!</pre>
=={{header|Wren}}==
{{trans|Go}}
<syntaxhighlight lang="wren">import "os" for Platform, Process
import "io" for File
var clipboard = "" // don't have access to real thing
var interpret = Fn.new { |source|
var source2 = source
if (Platform.isWindows) source2 = source.replace("\r\n", "\n")
var lines = source2.split("\n")
var le = lines.count
var i = 0
while (i < le) {
lines[i] = lines[i].trim() // ignore leading & trailing whitespace
if (lines[i] == "Copy") {
if (i == le - 1) Fiber.abort("There are no lines after the Copy command.")
i = i + 1
clipboard = lines[i]
} else if (lines[i] == "CopyFile") {
if (i == le - 1) Fiber.abort("There are no lines after the CopyFile command.")
i = i + 1
if (lines[i] == "TheF*ckingCode") {
clipboard = source
} else {
var s = File.read(lines[i])
clipboard = s
}
} else if (lines[i] == "Duplicate") {
if (i == le - 1) Fiber.abort("There are no lines after the Duplicate command.")
i = i + 1
var times = Num.fromString(lines[i])
if (times < 0) Fiber.abort("Can't duplicate text a negative number of times.")
var text = clipboard
clipboard = text * (times + 1)
} else if (lines[i] == "Pasta!") {
var text = clipboard
System.print(text)
return
} else {
if (lines[i] == "") {
i = i + 1
continue // ignore blank lines
}
Fiber.abort("Unknown command, %(lines[i])")
}
i = i + 1
}
}
var args = Process.arguments
if (args.count != 1) {
Fiber.abort("There should be exactly one command line argument, the CopyPasta file path.")
}
var s = File.read(args[0])
interpret.call(s)</syntaxhighlight>
{{out}}
<pre>
Similar to Go entry.
</pre>
=={{header|zkl}}==
<syntaxhighlight lang="zkl">var clipBoard=Data(), srcNm=vm.arglist[0];
pasta:=File(srcNm).read().howza(11); // zkl pastaprog.cp, stripped lines
foreach line in (pasta){
switch(line.toLower()){
case("copy"){ clipBoard.clear(next(__lineWalker),"\n") }
case("copyfile"){
n:=next(__lineWalker);
if(n=="TheF*ckingCode") clipBoard.clear(pasta);
else clipBoard.clear(File(n).read());
}
case("duplicate"){
n,t := next(__lineWalker,True), clipBoard.copy();
do(n){ t.append(clipBoard) } // noop if n<1
clipBoard=t;
}
case("pasta!"){ print(clipBoard.text); break; }
case(""){}
else{ error(__lineWalker,"Unknown command: ") }
}
}
fcn error(w,msg){
println("%s: %d: %s%s".fmt(srcNm, w.n, msg, w.value));
System.exit(1)
}
fcn next(w,wantInt=False){
try{
t:=w.next();
if(wantInt) t=t.toInt();
return(t)
}catch(TheEnd){ error(w,"Error: End of file: ") }
catch{ error(w,wantInt and "Not an int: " or "Error: ") }
}</syntaxhighlight>
Input programs:
<pre style="height:15ex">
//////////////prog.cp:
Copy
Rosetta Code
Duplicate
2
Pasta!
//////////////prog2.cp:
CopyFile
pasta.txt
Duplicate
1
Pasta!
/////////prog3.cp:
Copy
Invalid
Duplicate
1
Goto
3
Pasta!
//////////////pasta.txt:
I'm the pasta.txt file.
</pre>
{{out}}
<pre>
$ zkl copyPasta.zkl prog.cp
Rosetta Code
Rosetta Code
Rosetta Code
$ zkl copyPasta.zkl prog2.cp
I'm the pasta.txt file.
I'm the pasta.txt file.
$ zkl copyPasta.zkl prog3.cp
prog3.cp: 6: Unknown command: Goto
</pre>
| |||