|
|
//----------------------------------------------------------------------------
|
|
|
// Copyright (C) 2008-2012 The IPython Development Team
|
|
|
//
|
|
|
// Distributed under the terms of the BSD License. The full license is in
|
|
|
// the file COPYING, distributed as part of this software.
|
|
|
//----------------------------------------------------------------------------
|
|
|
|
|
|
//============================================================================
|
|
|
// Utilities
|
|
|
//============================================================================
|
|
|
|
|
|
IPython.namespace('IPython.utils');
|
|
|
|
|
|
IPython.utils = (function (IPython) {
|
|
|
|
|
|
//============================================================================
|
|
|
// Cross-browser RegEx Split
|
|
|
//============================================================================
|
|
|
|
|
|
// This code has been MODIFIED from the code licensed below to not replace the
|
|
|
// default browser split. The license is reproduced here.
|
|
|
|
|
|
// see http://blog.stevenlevithan.com/archives/cross-browser-split for more info:
|
|
|
/*!
|
|
|
* Cross-Browser Split 1.1.1
|
|
|
* Copyright 2007-2012 Steven Levithan <stevenlevithan.com>
|
|
|
* Available under the MIT License
|
|
|
* ECMAScript compliant, uniform cross-browser split method
|
|
|
*/
|
|
|
|
|
|
/**
|
|
|
* Splits a string into an array of strings using a regex or string
|
|
|
* separator. Matches of the separator are not included in the result array.
|
|
|
* However, if `separator` is a regex that contains capturing groups,
|
|
|
* backreferences are spliced into the result each time `separator` is
|
|
|
* matched. Fixes browser bugs compared to the native
|
|
|
* `String.prototype.split` and can be used reliably cross-browser.
|
|
|
* @param {String} str String to split.
|
|
|
* @param {RegExp|String} separator Regex or string to use for separating
|
|
|
* the string.
|
|
|
* @param {Number} [limit] Maximum number of items to include in the result
|
|
|
* array.
|
|
|
* @returns {Array} Array of substrings.
|
|
|
* @example
|
|
|
*
|
|
|
* // Basic use
|
|
|
* regex_split('a b c d', ' ');
|
|
|
* // -> ['a', 'b', 'c', 'd']
|
|
|
*
|
|
|
* // With limit
|
|
|
* regex_split('a b c d', ' ', 2);
|
|
|
* // -> ['a', 'b']
|
|
|
*
|
|
|
* // Backreferences in result array
|
|
|
* regex_split('..word1 word2..', /([a-z]+)(\d+)/i);
|
|
|
* // -> ['..', 'word', '1', ' ', 'word', '2', '..']
|
|
|
*/
|
|
|
var regex_split = function (str, separator, limit) {
|
|
|
// If `separator` is not a regex, use `split`
|
|
|
if (Object.prototype.toString.call(separator) !== "[object RegExp]") {
|
|
|
return split.call(str, separator, limit);
|
|
|
}
|
|
|
var output = [],
|
|
|
flags = (separator.ignoreCase ? "i" : "") +
|
|
|
(separator.multiline ? "m" : "") +
|
|
|
(separator.extended ? "x" : "") + // Proposed for ES6
|
|
|
(separator.sticky ? "y" : ""), // Firefox 3+
|
|
|
lastLastIndex = 0,
|
|
|
// Make `global` and avoid `lastIndex` issues by working with a copy
|
|
|
separator = new RegExp(separator.source, flags + "g"),
|
|
|
separator2, match, lastIndex, lastLength;
|
|
|
str += ""; // Type-convert
|
|
|
|
|
|
var compliantExecNpcg = typeof(/()??/.exec("")[1]) === "undefined"
|
|
|
if (!compliantExecNpcg) {
|
|
|
// Doesn't need flags gy, but they don't hurt
|
|
|
separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags);
|
|
|
}
|
|
|
/* Values for `limit`, per the spec:
|
|
|
* If undefined: 4294967295 // Math.pow(2, 32) - 1
|
|
|
* If 0, Infinity, or NaN: 0
|
|
|
* If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
|
|
|
* If negative number: 4294967296 - Math.floor(Math.abs(limit))
|
|
|
* If other: Type-convert, then use the above rules
|
|
|
*/
|
|
|
limit = typeof(limit) === "undefined" ?
|
|
|
-1 >>> 0 : // Math.pow(2, 32) - 1
|
|
|
limit >>> 0; // ToUint32(limit)
|
|
|
while (match = separator.exec(str)) {
|
|
|
// `separator.lastIndex` is not reliable cross-browser
|
|
|
lastIndex = match.index + match[0].length;
|
|
|
if (lastIndex > lastLastIndex) {
|
|
|
output.push(str.slice(lastLastIndex, match.index));
|
|
|
// Fix browsers whose `exec` methods don't consistently return `undefined` for
|
|
|
// nonparticipating capturing groups
|
|
|
if (!compliantExecNpcg && match.length > 1) {
|
|
|
match[0].replace(separator2, function () {
|
|
|
for (var i = 1; i < arguments.length - 2; i++) {
|
|
|
if (typeof(arguments[i]) === "undefined") {
|
|
|
match[i] = undefined;
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
if (match.length > 1 && match.index < str.length) {
|
|
|
Array.prototype.push.apply(output, match.slice(1));
|
|
|
}
|
|
|
lastLength = match[0].length;
|
|
|
lastLastIndex = lastIndex;
|
|
|
if (output.length >= limit) {
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
if (separator.lastIndex === match.index) {
|
|
|
separator.lastIndex++; // Avoid an infinite loop
|
|
|
}
|
|
|
}
|
|
|
if (lastLastIndex === str.length) {
|
|
|
if (lastLength || !separator.test("")) {
|
|
|
output.push("");
|
|
|
}
|
|
|
} else {
|
|
|
output.push(str.slice(lastLastIndex));
|
|
|
}
|
|
|
return output.length > limit ? output.slice(0, limit) : output;
|
|
|
};
|
|
|
|
|
|
//============================================================================
|
|
|
// End contributed Cross-browser RegEx Split
|
|
|
//============================================================================
|
|
|
|
|
|
|
|
|
var uuid = function () {
|
|
|
// http://www.ietf.org/rfc/rfc4122.txt
|
|
|
var s = [];
|
|
|
var hexDigits = "0123456789ABCDEF";
|
|
|
for (var i = 0; i < 32; i++) {
|
|
|
s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
|
|
|
}
|
|
|
s[12] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
|
|
|
s[16] = hexDigits.substr((s[16] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
|
|
|
|
|
|
var uuid = s.join("");
|
|
|
return uuid;
|
|
|
};
|
|
|
|
|
|
|
|
|
//Fix raw text to parse correctly in crazy XML
|
|
|
function xmlencode(string) {
|
|
|
return string.replace(/\&/g,'&'+'amp;')
|
|
|
.replace(/</g,'&'+'lt;')
|
|
|
.replace(/>/g,'&'+'gt;')
|
|
|
.replace(/\'/g,'&'+'apos;')
|
|
|
.replace(/\"/g,'&'+'quot;')
|
|
|
.replace(/`/g,'&'+'#96;');
|
|
|
}
|
|
|
|
|
|
|
|
|
//Map from terminal commands to CSS classes
|
|
|
var ansi_colormap = {
|
|
|
"01":"ansibold",
|
|
|
"30":"ansiblack",
|
|
|
"31":"ansired",
|
|
|
"32":"ansigreen",
|
|
|
"33":"ansiyellow",
|
|
|
"34":"ansiblue",
|
|
|
"35":"ansipurple",
|
|
|
"36":"ansicyan",
|
|
|
"37":"ansigrey"
|
|
|
};
|
|
|
|
|
|
function ansispan(str) {
|
|
|
// ansispan function adapted from github.com/mmalecki/ansispan (MIT License)
|
|
|
Object.keys(ansi_colormap).forEach(function(ansi) {
|
|
|
var span = '<span class="' + ansi_colormap[ansi] + '">';
|
|
|
|
|
|
//
|
|
|
// `\033[Xm` == `\033[0;Xm` sets foreground color to `X`.
|
|
|
//
|
|
|
str = str.replace(
|
|
|
new RegExp('\033\\[([01];)?' + ansi + 'm', 'g'), span
|
|
|
);
|
|
|
});
|
|
|
|
|
|
str = str.replace(/\033\[([01]|39|22)?m/g, '</span>');
|
|
|
return str;
|
|
|
};
|
|
|
|
|
|
// Transform ANSI color escape codes into HTML <span> tags with css
|
|
|
// classes listed in the above ansi_colormap object. The actual color used
|
|
|
// are set in the css file.
|
|
|
function fixConsole(txt) {
|
|
|
txt = xmlencode(txt);
|
|
|
var re = /\033\[([\dA-Fa-f;]*?)m/;
|
|
|
var opened = false;
|
|
|
var cmds = [];
|
|
|
var opener = "";
|
|
|
var closer = "";
|
|
|
|
|
|
// Strip all ANSI codes that are not color related. Matches
|
|
|
// all ANSI codes that do not end with "m".
|
|
|
var ignored_re = /(?=(\033\[[\d;=]*[a-ln-zA-Z]{1}))\1(?!m)/g;
|
|
|
txt = txt.replace(ignored_re, "");
|
|
|
|
|
|
// color ansi codes
|
|
|
txt = ansispan(txt);
|
|
|
return txt;
|
|
|
}
|
|
|
|
|
|
// Remove chunks that should be overridden by the effect of
|
|
|
// carriage return characters
|
|
|
function fixCarriageReturn(txt) {
|
|
|
var tmp = txt;
|
|
|
do {
|
|
|
txt = tmp;
|
|
|
tmp = txt.replace(/\r+\n/gm, '\n'); // \r followed by \n --> newline
|
|
|
tmp = tmp.replace(/^.*\r+/gm, ''); // Other \r --> clear line
|
|
|
} while (tmp.length < txt.length);
|
|
|
return txt;
|
|
|
}
|
|
|
|
|
|
// Locate any URLs and convert them to a anchor tag
|
|
|
function autoLinkUrls(txt) {
|
|
|
return txt.replace(/(^|\s)(https?|ftp)(:[^'">\s]+)/gi,
|
|
|
"$1<a target=\"_blank\" href=\"$2$3\">$2$3</a>");
|
|
|
}
|
|
|
|
|
|
// some keycodes that seem to be platform/browser independent
|
|
|
var keycodes = {
|
|
|
BACKSPACE: 8,
|
|
|
TAB : 9,
|
|
|
ENTER : 13,
|
|
|
SHIFT : 16,
|
|
|
CTRL : 17,
|
|
|
CONTROL : 17,
|
|
|
ALT : 18,
|
|
|
CAPS_LOCK: 20,
|
|
|
ESC : 27,
|
|
|
SPACE : 32,
|
|
|
PGUP : 33,
|
|
|
PGDOWN : 34,
|
|
|
END : 35,
|
|
|
HOME : 36,
|
|
|
LEFT_ARROW: 37,
|
|
|
LEFTARROW: 37,
|
|
|
LEFT : 37,
|
|
|
UP_ARROW : 38,
|
|
|
UPARROW : 38,
|
|
|
UP : 38,
|
|
|
RIGHT_ARROW:39,
|
|
|
RIGHTARROW:39,
|
|
|
RIGHT : 39,
|
|
|
DOWN_ARROW: 40,
|
|
|
DOWNARROW: 40,
|
|
|
DOWN : 40,
|
|
|
LEFT_SUPER : 91,
|
|
|
RIGHT_SUPER : 92,
|
|
|
COMMAND : 93,
|
|
|
};
|
|
|
|
|
|
|
|
|
var is_typing = function (event) {
|
|
|
// return whether a key event is probably typing (used for setting the dirty flag)
|
|
|
var key = event.which;
|
|
|
if ( key < 46 ) {
|
|
|
if (
|
|
|
( key == keycodes.BACKSPACE ) ||
|
|
|
( key == keycodes.TAB ) ||
|
|
|
( key == keycodes.ENTER )
|
|
|
) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
} else {
|
|
|
if (
|
|
|
( key == keycodes.LEFT_SUPER ) ||
|
|
|
( key == keycodes.RIGHT_SUPER ) ||
|
|
|
( key == keycodes.COMMAND )
|
|
|
) {
|
|
|
return false;
|
|
|
} else {
|
|
|
return true;
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
var points_to_pixels = function (points) {
|
|
|
// A reasonably good way of converting between points and pixels.
|
|
|
var test = $('<div style="display: none; width: 10000pt; padding:0; border:0;"></div>');
|
|
|
$(body).append(test);
|
|
|
var pixel_per_point = test.width()/10000;
|
|
|
test.remove();
|
|
|
return Math.floor(points*pixel_per_point);
|
|
|
};
|
|
|
|
|
|
// http://stackoverflow.com/questions/2400935/browser-detection-in-javascript
|
|
|
browser = (function() {
|
|
|
var N= navigator.appName, ua= navigator.userAgent, tem;
|
|
|
var M= ua.match(/(opera|chrome|safari|firefox|msie)\/?\s*(\.?\d+(\.\d+)*)/i);
|
|
|
if (M && (tem= ua.match(/version\/([\.\d]+)/i))!= null) M[2]= tem[1];
|
|
|
M= M? [M[1], M[2]]: [N, navigator.appVersion,'-?'];
|
|
|
return M;
|
|
|
})();
|
|
|
|
|
|
|
|
|
return {
|
|
|
regex_split : regex_split,
|
|
|
uuid : uuid,
|
|
|
fixConsole : fixConsole,
|
|
|
keycodes : keycodes,
|
|
|
fixCarriageReturn : fixCarriageReturn,
|
|
|
autoLinkUrls : autoLinkUrls,
|
|
|
is_typing : is_typing,
|
|
|
points_to_pixels : points_to_pixels,
|
|
|
browser : browser
|
|
|
};
|
|
|
|
|
|
}(IPython));
|
|
|
|
|
|
|
