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I doubt it will be, and you can define your own function or just use:

var str = 'Hello planet earth, you are a great planet.';
var search = 'planet';

var lastIndex = (str.split('').reverse().join('').indexOf(search.split('').reverse().join('')) - str.length + search.length) * (-1)

Please test this, I haven't :P

Building a lexer that handles serial output is painful, because you never know when the output finishes. Imagine sending multiple commands in quick succession which return one or multiple lines, building something to properly handle that is really tricky, especially if the first commands take longer to return.
I didn't know about the Serial1.setConsole, I will take a look and see what options are available.

I don't view implementing additional options on the espruino itself as a good idea, because these just take up memory and force other users to use the same options. For example, I would be interested in a "search-through-history" feature where you press ctrl+r like on linux, start typing some text and the matching commands are shown, and I already implemented something similar in here, but most users wouldn't even be aware of that.

Take a look at how other projects do it, the most popular servers are distributed with a separate client (mysql, redis, mongodb). They implement a protocol, and you can build alternate clients for them if you need to.

Anyway, I'm totally fine with the status quo, these are just my 2c :P if the "cli-on-espruino" will not change and cannot be avoided/disabled, we'll just have to adapt to it.

(I think we should create separate threads of discussion if these go any further)

@Gordon I am aware of echo(0), but that does not help. I want to know when a command finishes, in a consistent manner. At the moment, I can only read the output, which is inconsistent when single commands return single or multiple lines, and inconsistent when a command spans over multiple lines. I saw that you got over this problem by waiting for 100ms in the Web IDE, but that's a slow hack, not a proper solution solution.

You said you wanted something easy to get started with, but not getting in the way if you want something more advanced. At the moment, the protocol only allows simple things and is getting in the way of something more advanced. I wanted to implement a more advanced cli, that's why I asked if there is a protocol other than espruino's cli.

My purpose was to have a cli which allowed command history, which sent minified commands, which only sent the commands once the code block was closed, and it should also implement internal commands such as .sendFile('path/to/file.js'). A GUI could be built on top of it, even integrated with chrome.

If that is not possible, then I guess we'll have to deal with the current behavior, and simply forward everything to espruino and wait for 100-1000 miliseconds after every command.

I tried something similar, but the terminal implementation on the espruino itself is the painful part. I was surprised to find out that the board is the one implementing the CLI and the serial connection simply sends/receives text characters.

Is it possible to use a communication protocol and bypass espruino's CLI? Or maybe configure espruino to not send the cli prefix >, nor the response prefix =. You could also view it as a consistency problem, espruino is sending \r\n at the end of intermediate lines, and \r> at the end of output, but interpreting the text is wrong and can lead to a lot of problems.

Overall, is there a way to connect to the board without using its CLI, in order to implement a (proper) cli?

I tracked it down to the slide on the edge towards the 10uF condenser. Just pressing it down a little but using a pen makes the board work. I am pointing to the disconnected slide in this photo.

I took some photos using my phone since I don't have another camera. They are high res, but the phone's sensor is rather limited. Here's the link with the pictures, there is also an archive if you want to download all of them. Warning: large sized pictures.

Keeping the RST button pressed helped debug the issue. The contact between the connector and the board needs resoldering or a complete change, looks rather tricky for my bulky soldering iron. I guess they are not as resistant as I had hoped, I only plugged/unplugged the cable a couple of times. I guess I'll speed up my USB extension cable purchase :)

If anyone is curious: applying pressure on the back of the board's connector (on the margin that sits towards the inside of the board) makes it work.

I was unaware that setTimeout supported timeouts of less than 1 ms, you have 0.07. I don't yet know whether this is an Espruino feature.

As for the eval'd strings, you can always pass a function that returns what you want to run, take a look at line 51.

I'm not sure what the default value is for time or if you want 0.1 to be the time. I believe the second param should either be 1 or 0, nothing in between. Try setting it all params explicitly, like this:

digitalPulse(C7, 1, 100)

And make sure that 100ms pass before running it again. Here is an example where I'm pulsating the led every 2 seconds, check out line 45.

The official reference lists the format as digitalPulse(pin, state, time), where:

• pin id
  
• state either 1 or 0 (for high or low)
  
• time in miliseconds
  

False alarm. I guess it worked for 1 second. Here is the dmesg output when I handled the operation described above:

[30086.430599] usb 3-1: new full-speed USB device number 6 using xhci_hcd
[30086.430724] usb 3-1: Device not responding to set address.
[30086.634859] usb 3-1: Device not responding to set address.
[30086.838994] usb 3-1: device not accepting address 6, error -71
[30101.974199] usb 3-1: new full-speed USB device number 8 using xhci_hcd
[30101.991363] usb 3-1: New USB device found, idVendor=0483, idProduct=5740
[30101.991366] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[30101.991368] usb 3-1: Product: STM32 Virtual COM Port  
[30101.991369] usb 3-1: Manufacturer: STMicroelectronics
[30101.991370] usb 3-1: SerialNumber: 48DF62573330
[30101.991480] usb 3-1: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes
[30102.072469] cdc_acm 3-1:1.0: This device cannot do calls on its own. It is not a modem.
[30102.072487] cdc_acm 3-1:1.0: ttyACM0: USB ACM device
[30102.072735] usbcore: registered new interface driver cdc_acm
[30102.072737] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[30102.146920] usb 3-1: USB disconnect, device number 8

It disconnected without me unplugging it. Now there is no output, i retried the steps above. It does not look like it's dead, it still blinks the red led after resetting, but the logs are empty. I'll explore additional options tomorrow :(

@Gordon, you suggested peek and poke, how can we tell which addresses are safer than others?

I did what cephdon suggested. Here's how it went:

1. plug in, no output in dmesg, plug out, change cable, plug in, no output.
   
2. hold RST then BTN1 pressed for ~1 sec, then plug out and release buttons
   
3. plug in, I saw the red LED light up for a split second, dmesg said Device not responding to set address again.
   
4. hold RST then BTN1 again for ~1 sec, then plug out and release buttons
   
5. plug in, I saw the red LED light up for a split second again, dmesg shown proper registration as USB ACM device
   
   

Thanks cephdon. I hope the steps I listed here help others and help debug :)

After compiling the linux version and running some tests locally, when I plugged the Espruino board in, /dev/ttyACM0 did not exist. After several retries, including RESET on Espruino, I noticed there was no output in dmesg. Changed the USB hub, still nothing.

After a PC restart, this is the message I got in dmesg, but only the first time I plug the board in:

[   70.487846] usb 3-2: new full-speed USB device number 5 using xhci_hcd
[   70.487912] usb 3-2: Device not responding to set address.
[   70.691909] usb 3-2: Device not responding to set address.
[   70.896019] usb 3-2: device not accepting address 5, error -71

Subsequent plugins do not output anything. Does this sound familiar to anyone? (i did not flash the board, other usb devices are working)

Later edit: I added usbcore.old_scheme_first=1 to grub init, same thing, no dmesg output when plugging in. The cable works, tested with my phone.

Later later edit: I tested with the Espruino board I got for a friend and it works :( So I guess mine is bricked ... somehow... no messages are output by dmesg anymore, not even after restart(s). I remember the red led flashing for a fraction of a second (very short time) when I plugged it in and I noticed it wasn't working.

Indeed the USE_LCD_SDL=1 was the problem. Thanks.

The only make targets in the Makefile are:

clean
gdb
serialflash
flash
proj

Tried each with BOARDNAME=1 RELEASE=1 ESPRUINO_1V3=1 make <target>, but no espruino script, only the binaries, so the compiler works.

Tried with LINUX=1 make, and it outputs a lot of warnings and this error

libs/graphics/lcd_sdl.c:18:21: fatal error: SDL/SDL.h: No such file or directory
# include <SDL/SDL.h>
                     ^

Tried with BOARDNAME=1 RELEASE=1 ESPRUINO_1V3=1 LINUX=1 make, and it exits with this error:

src/jsutils.c:21:19: fatal error: mconf.h: No such file or directory
 # include "mconf.h"
                   ^

Tried with LINUX=1 make -i (ignore errors), to no avail. Cleaned every time before new run.

Any hints? :)

The README says

The tests here are run automatically when you type './espruino test'. Ideally their name would represent what they tested, but this hasn't been done yet.

Yet there is no espruino executable file. Is there a way to run all the tests?

Allright I'll test against the latest dev version after work or tomorrow, and send proper pull requests if problems persist. Thanks for looking into this.

I have attached a file, if anyone wants to run the tests on their espruino. It contains a limited set of browser tests adapted to work on our devices.

I noticed that many functions are not implemented, and some uncommon behaviour is not supported (eg: [1,2,,,5]), but those are not common problems.

You will find many inconsistencies by running the tests here, but I will list the most likely to affect users:

• Unexpected if behaviour

  var asd = 1;
  if ( undefined )
  asd = 2;
  console.log('asd is:', asd); // 1 - is actually 2
  

• Math.abs(-5) === 5, Math.log(Math.E*Math.E) === 2 and Math.log(1) === 0 should return true, but return false

• no Date object

• Number.POSITIVE_INFINITY === Infinity should be true but is actually false, same for NEGATIVE_INFINITY

• (8.5).toString(16) should be 8.8 but found 8.5

• (-8.5).toString(16) should be -8.8 but found -8.5

• 09 should be 9 but found 0

• 019 should be 19 but found 1

• var i = -8; i >>>= 24 should be 255 but found 1099511627775

• Math.PI should be 3.141592653589793 but found 3.141592653590000061569

• Math.E should be 2.718281828459045 but found 2.718281828459999882596

• Math.atan2(-1, Infinity) should be negative 0 (so -0) but found NaN

• toFixed does not work although I remember @Gordon saying it was implemented

• 'abc' ? 1 : 2 should be 1 but found 2

• Trying to delete non-deletable properties eg: delete Array.prototype should return false but object is returned. delete always returns the value, so it's impossible to tell if the property was deleted or not from its return.

• Redefining a var inside the same scope does not work

  var a = 'asd';
  console.log(a); // asd
  var a;
  console.log(a); // undefined - is actually asd
  

• no unicode

  var u = "a\u1234c";
  console.log(u.charCodeAt(1)) // 4660 - is actually 117
  

• the for (x in y) works differently with {}, for example the following code behaves differently if curly braces are used to wrap {propnames.push(i);}, view the comments.

  var arr = new Array('a','b','c');
  var propnames = [];
  for (var i in arr)
  propnames.push(i);
  
  console.log(propnames.length); // 3 - is actually 1
  console.log(propnames[0]); // 0 - is actually 2
  console.log(propnames[1]); // 1 - is actually undefined
  console.log(propnames[2]); // 2 - is actually undefined
  

Other than not-yet-implemented functions and these examples, most tests in here run ok.

Later edit: I see what you mean, thanks for the clarification. I expected the setInterval integer values to be reused like the setWatch values are, and when I saw them rising to infinity I assumed something was wrong :)

The sound is muted. The sound is not coming from the speakers, but from other hardware close to the PC's CPU unit, probably an induction coil since they tend to make scratching sounds under high load. The problem is the Web IDE, I cannot keep it connected because it uses 100% cpu :)

Nice solution, Bogdan. I would improve it to allow passing params from one to another, so you would not need to use globals. This does degrade readability though:

function setupBTN1(customParams) {
  return function() {
    function test() {
      return callback();
    }
    var id = setWatch(test, BTN1, {repeat:false, edge:"rising"});
    function callback() {
      console.log('Hello! watch id was', id, 'and customParams was', customParams);
      clearWatch(id);
      setTimeout(setupBTN1(customParams + Math.random()), 1000);
    }
  };
}
setupBTN1(0)();

I created a LED dimming function (source code). It does what I expect it to do every DURATION miliseconds, with an exception. I added two console logs to highlight the problem, this is the line which does not work, clearInterval(stepInterval), logging ERROR: Unknown Interval.
All the other clearIntervals seem to be working. Here is some sample output from the script:

run to 1
clearing stepInterval number 11
ERROR: Unknown Interval
should have cleared stepInterval number 11
done 1.
done 0.99
run to 0
clearing stepInterval number 13
ERROR: Unknown Interval
should have cleared stepInterval number 13
done -0.
done 0.01
run to 1
clearing stepInterval number 15
ERROR: Unknown Interval
should have cleared stepInterval number 15
done 1.
done 0.99
run to 0
clearing stepInterval number 17
ERROR: Unknown Interval
should have cleared stepInterval number 17
done -0.
done 0.01
run to 1
clearing stepInterval number 19
ERROR: Unknown Interval
should have cleared stepInterval number 19

So the intervals keep adding up, I assume it will either run out of memory or gray dragons will come out of the espruino board.

Any hints?

Connecting via minicom works ok, it's only the IDE that causes sounds, probably due to 100% cpu.

I was using the latest (Github) version, not the Chrome store one. Probably bleeding-edge syndrome :)

I noticed that chrome hits 100% cpu usage every time the web interface is connected, goes down to 0 when it's disconnected. I guess that's the cause. You may delete this thread, I'll open an issue on github.

Chrome version 32.0.1700.107