ESP8266 part of the f105-motor-demo project (see f105-motor-demo_stm32)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

72 lines
1.6 KiB

function bool(x) {
return (x === 1 || x === '1' || x === true || x === 'true');
}
/** html entities */
function e(x) {
return String(x)
.replace(/&/g, '&')
.replace(/"/g, '"')
.replace(/'/g, ''')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
}
/** Returns true if argument is array [] */
function isArray(obj) {
return Object.prototype.toString.call(obj) === '[object Array]';
}
/** Returns true if argument is object {} */
function isObject(obj) {
return Object.prototype.toString.call(obj) === '[object Object]';
}
/** escape a string to have no special meaning in regex */
function regexEscape(s) {
return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
}
/** Convert RSSI 0-255 to % */
function rssiPerc(rssi) {
var r = parseInt(rssi);
if (r > -50) return 100; // 100%
if (r < -100) return 0; // 0%
return Math.round(2 * (r + 100)); // approximation
}
/** Perform a substitution in the given string.
*
* Arguments - array or list of replacements.
* Arguments numeric keys will replace {0}, {1} etc.
* Named keys also work, ie. {foo: "bar"} -> replaces {foo} with bar.
*
* Braces are added to keys if missing.
*
* @returns {String} result
*/
String.prototype.format = function () {
var out = this;
var repl = arguments;
if (arguments.length == 1 && (isArray(arguments[0]) || isObject(arguments[0]))) {
repl = arguments[0];
}
for (var ph in repl) {
if (repl.hasOwnProperty(ph)) {
var ph_orig = ph;
if (!ph.match(/^\{.*\}$/)) {
ph = '{' + ph + '}';
}
// replace all occurrences
var pattern = new RegExp(regexEscape(ph), "g");
out = out.replace(pattern, repl[ph_orig]);
}
}
return out;
};