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Handle carriage return characters ("\r") in HTML notebook output.

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This commit is contained in:
Michael Droettboom 2012-04-25 13:16:33 -04:00
parent 0b6aa846e1
commit 50fa35b1cc
3 changed files with 23 additions and 10 deletions
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13
IPython/frontend/html/notebook/static/js/codecell.js
View File

@ -623,7 +623,8 @@ var IPython = (function (IPython) {
if (json.stream == undefined){
json.stream = 'stdout';
}
if (!utils.fixConsole(json.text)){
var text = utils.fixConsole(json.text);
if (!text){
// fixConsole gives nothing (empty string, \r, etc.)
// so don't append any elements, which might add undesirable space
return;
@ -636,15 +637,16 @@ var IPython = (function (IPython) {
// latest output was in the same stream,
// so append directly into its pre tag
// escape ANSI & HTML specials:
var text = utils.fixConsole(json.text);
this.element.find('div.'+subclass).last().find('pre').append(text);
pre = this.element.find('div.'+subclass).last().find('pre');
text = utils.fixCarriageReturn(pre.text() + text);
pre.text(text);
return;
}
}
// If we got here, attach a new div
var toinsert = this.create_output_area();
this.append_text(json.text, toinsert, "output_stream "+subclass);
this.append_text(text, toinsert, "output_stream "+subclass);
this.element.find('div.output').append(toinsert);
};
@ -702,6 +704,7 @@ var IPython = (function (IPython) {
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_text");
// escape ANSI & HTML specials in plaintext:
data = utils.fixConsole(data);
data = utils.fixCarriageReturn(data);
if (extra_class){
toinsert.addClass(extra_class);
}

4
IPython/frontend/html/notebook/static/js/pager.js
View File

@ -89,9 +89,9 @@ var IPython = (function (IPython) {
Pager.prototype.append_text = function (text) {
var toinsert = $("<div/>").addClass("output_area output_stream");
toinsert.append($('<pre/>').html(utils.fixConsole(text)));
toinsert.append($('<pre/>').html(utils.fixCarriageReturn(utils.fixConsole(text))));
this.pager_element.append(toinsert);
};
};
IPython.Pager = Pager;

16
IPython/frontend/html/notebook/static/js/utils.js
View File

@ -47,7 +47,7 @@ IPython.utils = (function (IPython) {
"37":"ansigrey", "01":"ansibold"
};
// Transform ANI color escape codes into HTML <span> tags with css
// 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) {
@ -58,7 +58,6 @@ IPython.utils = (function (IPython) {
var opener = "";
var closer = "";
// \r does nothing, so shouldn't be included
txt = txt.replace('\r', '');
while (re.test(txt)) {
var cmds = txt.match(re)[1].split(";");
closer = opened?"</span>":"";
@ -74,6 +73,16 @@ IPython.utils = (function (IPython) {
return txt;
}
// Remove chunks that should be overridden by the effect carriage
// return characters
function fixCarriageReturn(txt) {
tmp = txt;
do {
txt = tmp;
tmp = txt.replace(/^.*\r/gm, '');
} while (tmp.length < txt.length);
return txt;
}
grow = function(element) {
// Grow the cell by hand. This is used upon reloading from JSON, when the
@ -95,7 +104,8 @@ IPython.utils = (function (IPython) {
return {
uuid : uuid,
fixConsole : fixConsole,
grow : grow
grow : grow,
fixCarriageReturn : fixCarriageReturn
};
}(IPython));