/usr/lib/python2.7/dist-packages/notebook/static/notebook/js/searchandreplace.js is in python-notebook 5.2.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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'jquery',
'base/js/dialog',
'base/js/i18n'
], function($, dialog, i18n){
"use strict";
/**
* escape a Regular expression to act as a pure search string.
* though it will still have the case sensitivity options and all
* the benefits
**/
function escapeRegExp(string){
return string.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}
/**
* Compute the model of the preview for the search and replace.
* It might not be perfectly accurate if matches overlap...
* Parameter:
* sre: the string that will become the Search Regular Expression
* arr: a list of string on which the match will be applied.
* isCaseSensitive: should the match be CaseSensitive
* RegExOrNot: a `RegExOrNot` object.
* replace: the replacement string for the matching `sre`
* Return: a tuple of 2 value:
* 1) array of [before match, match, replacement, after match]
* where before and after match are cut to a reasonable length after the match.
* 2) Boolean, whether the matching has been aborted because one of the element of
* arr have too many matches.
**/
var compute_preview_model = function(sre, arr, isCaseSensitive, RegExpOrNot, replace){
var html = [];
// and create an array of
// before_match, match , replacement, after_match
var aborted = false;
var replacer_reg = new RegExpOrNot(sre);
for(var r=0; r < arr.length; r++){
var current_line = arr[r];
var match_abort = getMatches(sre, current_line, isCaseSensitive, RegExpOrNot);
aborted = aborted || match_abort[1];
var matches = match_abort[0];
for(var mindex=0; mindex < matches.length ; mindex++){
var start = matches[mindex][0];
var stop = matches[mindex][1];
var initial = current_line.slice(start, stop);
var replaced = initial.replace(replacer_reg, replace);
// that might be better as a dictionary
html.push([cutBefore(current_line.slice(0, start)),
initial,
replaced,
cutAfter(current_line.slice(stop), 30-(stop-start))]);
}
}
return [html, aborted];
};
/**
* Build the preview model where things matched and their replacement values
* are wrapped in tags with correct CSS classes.
* Parameter:
* body: jQuery element into which the preview will be build
* aborted : have the model been aborted (Boolean) use to tell the user
* that the preview might not show all the replacements
* html: array of model created by compute_preview_model
* replace: Boolean: whether we are actually replacing with something or just matching.
**/
var build_preview = function(body, aborted, html, replace){
body.empty();
if(aborted){
var warnmsg = i18n.msg.sprintf(i18n.msg._("Warning: too many matches (%d). Some changes might not be shown or applied."),html.length);
body.append($('<p/>').addClass('bg-warning').text(warnmsg));
} else {
var matchmsg = i18n.msg.sprintf(i18n.msg.ngettext("%d match","%d matches",html.length),html.length);
body.append($('<p/>').text(matchmsg));
}
for(var rindex=0; rindex<html.length; rindex++){
var pre = $('<pre/>')
.append(html[rindex][0])
.append($('<span/>').addClass('match').text(html[rindex][1]));
if(replace){
pre.append($('<span/>').addClass('insert').text(html[rindex][2]));
pre.addClass('replace');
}
pre.append(html[rindex][3]);
body.append(pre);
}
};
/**
* Given a string, return only the beginning, with potentially an ellipsis
* at the end.
**/
var cutAfter = function(string, n){
n=n||10;
while(n<10){
n+=15;
}
if(string.length > n+3){
return string.slice(0, n)+'...';
}
return string;
};
/**
* Given a string, return only the end, with potentially an ellipsis
* at the beginning.
**/
var cutBefore = function(string){
if(string.length > 33){
return '...'+string.slice(-30);
}
return string;
};
/**
* Find all occurrences of `re` in `string`, match in a `caseSensitive`
* manner or not, and determine whether `re` is a RegExp or not depending of
* the type of object passed as `r`.
*
* Return a tuple
* 1) list of matches [start, stop] indexes in the string.
* 2) abort Boolean, if more that 100 matches and the matches were aborted.
**/
var getMatches = function(re, string, caseSensitive, r){
var extra = caseSensitive ? '':'i';
extra = '';
try {
re = r(re, 'g'+extra);// have to global or infinite loop
} catch (e){
return [[], false];
}
var res = [];
var match;
var escape_hatch = 0;
var abort = false;
while((match = re.exec(string)) !== null) {
res.push([match.index, match.index+match[0].length]);
escape_hatch++;
if(escape_hatch > 100){
console.warn(i18n.msg._("More than 100 matches, aborting"));
abort = true;
break;
}
}
return [res, abort];
};
// main function
/**
* Search N' Replace action handler.
**/
var snr = function(env, event) {
var isRegExpButton = $('<button/>')
.attr('type', 'button')
.attr('id', 'isreg')
.addClass("btn btn-default btn-sm")
.attr('data-toggle','button')
.css('font-weight', 'bold')
.attr('title', i18n.msg._('Use regex (JavaScript regex syntax)'))
.text('.*');
var allCellsButton = $('<button/>')
.append($('<i/>').addClass('fa fa-arrows-v'))
.attr('type', 'button')
.addClass("btn btn-default btn-sm")
.attr('data-toggle','button')
.attr('title', i18n.msg._('Replace in selected cells'));
var isCaseSensitiveButton = $('<button/>')
.attr('type', 'button')
.addClass("btn btn-default btn-sm")
.attr('data-toggle','button')
.attr('tabindex', '0')
.attr('title', i18n.msg._('Match case'))
.css('font-weight', 'bold')
.text('Aa');
var search = $("<input/>")
.addClass('form-control input-sm')
.attr('placeholder',i18n.msg._('Find'));
var findFormGroup = $('<div/>').addClass('form-group');
findFormGroup.append(
$('<div/>').addClass('input-group')
.append(
$('<div/>').addClass('input-group-btn')
.append(isCaseSensitiveButton)
.append(isRegExpButton)
.append(allCellsButton)
)
.append(search)
)
var replace = $("<input/>")
.addClass('form-control input-sm')
.attr('placeholder',i18n.msg._('Replace'));
var replaceFormGroup = $('<div/>').addClass('form-group');
replaceFormGroup.append(replace);
var body = $('<div/>').attr('id', 'replace-preview');
var form = $('<form/>').attr('id', 'find-and-replace')
form.append(findFormGroup);
form.append(replaceFormGroup);
form.append(body);
// return whether the search is case sensitive
var isCaseSensitive = function(){
var value = isCaseSensitiveButton.attr('aria-pressed') == 'true';
return value;
};
// return whether the search is RegExp based, or
// plain string matching.
var isReg = function(){
var value = isRegExpButton.attr('aria-pressed') == 'true';
return value;
};
var allCells = function(){
return (allCellsButton.attr('aria-pressed') == 'true');
};
// return a Pseudo RegExp object that acts
// either as a plain RegExp Object, or as a pure string matching.
// automatically set the flags for case sensitivity from the UI
var RegExpOrNot = function(str, flags){
if (!isCaseSensitive()){
flags = (flags || '')+'i';
}
if (isRegExpButton.attr('aria-pressed') === 'true'){
return new RegExp(str, flags);
} else {
return new RegExp(escapeRegExp(str), flags);
}
};
var onError = function(body){
body.empty();
body.append($('<p/>').text(i18n.msg._('No matches, invalid or empty regular expression')));
};
var get_cells = function(env){
if(allCells()){
return env.notebook.get_cells();
} else {
return env.notebook.get_selected_cells();
}
};
var get_all_text = function(cells) {
var arr = [];
for (var c = 0; c < cells.length; c++) {
arr = arr.concat(cells[c].code_mirror.getValue().split('\n'));
}
return arr;
};
/**
* callback triggered anytime a change is made to the
* request, case sensitivity, isregex, search or replace
* modification.
**/
var onChange = function(){
var sre = search.val();
// abort on invalid RE
if (!sre) {
return onError(body);
}
try {
new RegExpOrNot(sre);
} catch (e) {
return onError(body);
}
// might want to warn if replace is empty
var replaceValue = replace.val();
var lines = get_all_text(get_cells(env));
var _hb = compute_preview_model(sre, lines, isCaseSensitive(), RegExpOrNot, replaceValue);
var html = _hb[0];
var aborted = _hb[1];
build_preview(body, aborted, html, replaceValue);
// done on type return false not to submit form
return false;
};
var onsubmit = function(event) {
var sre = search.val();
var replaceValue = replace.val();
if (!sre) {
return false;
}
// should abort on invalid RegExp.
// need to be multi line if we want to directly replace in codemirror.
// or need to split/replace/join
var reg = RegExpOrNot(sre, 'gm');
var cells = get_cells(env);
for (var c = 0; c < cells.length; c++) {
var cell = cells[c];
var oldvalue = cell.code_mirror.getValue();
var newvalue = oldvalue.replace(reg , replaceValue);
cell.code_mirror.setValue(newvalue);
if (cell.cell_type === 'markdown') {
cell.rendered = false;
cell.render();
}
}
};
// wire-up the UI
isRegExpButton.click(function(){
search.focus();
setTimeout(function(){onChange();}, 100);
});
isCaseSensitiveButton.click(function(){
search.focus();
setTimeout(function(){onChange();}, 100);
});
allCellsButton.click(function(){
replace.focus();
setTimeout(function(){onChange();}, 100);
});
search.keypress(function (e) {
if (e.which == 13) {//enter
replace.focus();
}
});
search.on('input', onChange);
replace.on('input', onChange);
// This statement is used simply so that message extraction
// will pick up the strings. The actual setting of the text
// for the button is in dialog.js.
var button_labels = [ i18n.msg._("Replace All")];
var mod = dialog.modal({
show: false,
title: i18n.msg._("Find and Replace"),
body:form,
keyboard_manager: env.notebook.keyboard_manager,
buttons:{
'Replace All':{ class: "btn-primary",
click: function(event){onsubmit(event); return true;}
}
},
open: function(){
search.focus();
}
});
replace.keypress(function (e) {
if (e.which == 13) {//enter
onsubmit();
mod.modal('hide');
}
});
mod.modal('show');
};
var load = function(keyboard_manager){
var action_all = {
cmd: i18n.msg._('find and replace'),
help: i18n.msg._('find and replace'),
handler: function(env, event){
snr(env, event);
}
};
var act_all = keyboard_manager.actions.register(action_all, 'find-and-replace', 'jupyter-notebook');
keyboard_manager.command_shortcuts.add_shortcuts({
'f': 'jupyter-notebook:find-and-replace'
});
};
return {load:load};
});
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