User:Proteins/quickdiffs.js: Difference between revisions

Revision as of 12:28, 4 November 2008

Latest revision as of 04:58, 28 February 2022

(16 intermediate revisions by one other user not shown)

Line 1:

//<pre>

// Summarizes the differences between two page versions in pop-up windows

// Perhaps calculate fractional change in document?

//

// To use this script, add "importScript('User:Proteins/quickdiffs.js');" to your monobook.js subpage

// under your user page, as you can see at User:Proteins/monobook.js

function quickDiffs() {

Line 38 ⟶ 42:

var diff_new_version_info; //className = "diff-ntitle"

var mw_diff_otitle1 = "";

var mw_diff_otitle2 = ""mw_diff_otitle1_child;

var mw_diff_otitle1_grandchild;

var mw_diff_otitle3 = "";

var mw_diff_otitle4mw_diff_otitle1_text = "";

var mw_diff_ntitle1 = ""mw_diff_otitle2;

var mw_diff_ntitle2 = ""mw_diff_otitle2_child;

var mw_diff_otitle2_grandchild;

var mw_diff_ntitle3 = "";

var mw_diff_ntitle4mw_diff_otitle2_text = "";

var mw_diff_otitle3;

var mw_diff_otitle3_child;

var mw_diff_otitle3_grandchild;

var mw_diff_otitle3_text = "";

var mw_diff_otitle4;

var mw_diff_otitle4_child;

var mw_diff_otitle4_grandchild;

var mw_diff_otitle4_text = "";

var mw_diff_ntitle1;

var mw_diff_ntitle1_child;

var mw_diff_ntitle1_grandchild;

var mw_diff_ntitle1_text = "";

var mw_diff_ntitle2;

var mw_diff_ntitle2_child;

var mw_diff_ntitle2_grandchild;

var mw_diff_ntitle2_text = "";

var mw_diff_ntitle3;

var mw_diff_ntitle3_child;

var mw_diff_ntitle3_grandchild;

var mw_diff_ntitle3_text = "";

var mw_diff_ntitle4;

var mw_diff_ntitle4_child;

var mw_diff_ntitle4_grandchild;

var mw_diff_ntitle4_text = "";

var num_diff_context_lines = 0;

var revisions = "";

var num_revisions = 0;

Line 184 ⟶ 217:

}

// Get header texts for older version

// Loop over the rows in the difference table

mw_diff_otitle1_text = "";

mw_diff_otitle1 = document.getElementById('mw-diff-otitle1');

if (!mw_diff_otitle1) {

window.alert("ERROR: This article has no element with id \"mw-diff-otitle1\".\n\n");

} else {

mw_diff_otitle1_child = mw_diff_otitle1.firstChild;

if (!mw_diff_otitle1_child) {

window.alert("ERROR: The \"mw-diff-otitle1\" element has no child node.\n\n");

} else {

mw_diff_otitle1_grandchild = mw_diff_otitle1_child.firstChild;

if (!mw_diff_otitle1_grandchild) {

window.alert("ERROR: The \"mw-diff-otitle1\" element has no grandchild node.\n\n");

} else {

mw_diff_otitle1_text = mw_diff_otitle1_grandchild.innerHTML;

} // closes check for grandchild node

} // closes check for child node

} // closes check for mw_diff_otitle1 node

// window.alert("The mw_diff_otitle1_text is " + mw_diff_otitle1_text + "\n");

mw_diff_otitle2_text = "";

mw_diff_otitle2 = document.getElementById('mw-diff-otitle2');

if (!mw_diff_otitle2) {

window.alert("ERROR: This article has no element with id \"mw-diff-otitle2\".\n\n");

} else {

mw_diff_otitle2_child = mw_diff_otitle2.firstChild;

if (!mw_diff_otitle2_child) {

window.alert("ERROR: The \"mw-diff-otitle2\" element has no child node.\n\n");

} else {

mw_diff_otitle2_text = mw_diff_otitle2_child.innerHTML;

} // closes check for child node

} // closes check for mw_diff_otitle2 node

// window.alert("The mw_diff_otitle2_text is " + mw_diff_otitle2_text + "\n");

mw_diff_otitle3_text = "";

mw_diff_otitle3 = document.getElementById('mw-diff-otitle3');

if (!mw_diff_otitle3) {

window.alert("ERROR: This article has no element with id \"mw-diff-otitle3\".\n\n");

} else {

mw_diff_otitle3_text = mw_diff_otitle3.innerHTML;

mw_diff_otitle3_text = mw_diff_otitle3_text.replace(/&gt;/ig, ">");

mw_diff_otitle3_text = mw_diff_otitle3_text.replace(/&lt;/ig, "<");

mw_diff_otitle3_text = mw_diff_otitle3_text.replace(/(<([^>]+)>)/ig,"");

} // closes check for mw_diff_otitle3 node

// window.alert("The mw_diff_otitle3_text is " + mw_diff_otitle3_text + "\n");

// Possibly add code for mw_diff_otitle4 here, but seems unneeded

// Get header texts for newer version

mw_diff_ntitle1_text = "";

mw_diff_ntitle1 = document.getElementById('mw-diff-ntitle1');

if (!mw_diff_ntitle1) {

window.alert("ERROR: This article has no element with id \"mw-diff-ntitle1\".\n\n");

} else {

mw_diff_ntitle1_child = mw_diff_ntitle1.firstChild;

if (!mw_diff_ntitle1_child) {

window.alert("ERROR: The \"mw-diff-ntitle1\" element has no child node.\n\n");

} else {

mw_diff_ntitle1_grandchild = mw_diff_ntitle1_child.firstChild;

if (!mw_diff_ntitle1_grandchild) {

window.alert("ERROR: The \"mw-diff-ntitle1\" element has no grandchild node.\n\n");

} else {

mw_diff_ntitle1_text = mw_diff_ntitle1_grandchild.innerHTML;

} // closes check for grandchild node

} // closes check for child node

} // closes check for mw_diff_ntitle1 node

// window.alert("The mw_diff_ntitle1_text is " + mw_diff_ntitle1_text + "\n");

mw_diff_ntitle2_text = "";

mw_diff_ntitle2 = document.getElementById('mw-diff-ntitle2');

if (!mw_diff_ntitle2) {

window.alert("ERROR: This article has no element with id \"mw-diff-ntitle2\".\n\n");

} else {

mw_diff_ntitle2_child = mw_diff_ntitle2.firstChild;

if (!mw_diff_ntitle2_child) {

window.alert("ERROR: The \"mw-diff-ntitle2\" element has no child node.\n\n");

} else {

mw_diff_ntitle2_text = mw_diff_ntitle2_child.innerHTML;

} // closes check for child node

} // closes check for mw_diff_ntitle2 node

// window.alert("The mw_diff_ntitle2_text is " + mw_diff_ntitle2_text + "\n");

mw_diff_ntitle3_text = "";

mw_diff_ntitle3 = document.getElementById('mw-diff-ntitle3');

if (!mw_diff_ntitle3) {

window.alert("ERROR: This article has no element with id \"mw-diff-ntitle3\".\n\n");

} else {

mw_diff_ntitle3_text = mw_diff_ntitle3.innerHTML;

mw_diff_ntitle3_text = mw_diff_ntitle3_text.replace(/&gt;/ig, ">");

mw_diff_ntitle3_text = mw_diff_ntitle3_text.replace(/&lt;/ig, "<");

mw_diff_ntitle3_text = mw_diff_ntitle3_text.replace(/(<([^>]+)>)/ig,"");

} // closes check for mw_diff_ntitle3 node

// window.alert("The mw_diff_ntitle3_text is " + mw_diff_ntitle3_text + "\n");

// Possibly add code for mw_diff_ntitle4 here, but seems unneeded

// Loop over the rows in the difference table

num_alert_strings = 0;

alert_string_list[0] = "NONE";

Line 238 ⟶ 368:

if (!temp_table_datum_text_node) { continue; }

if (temp_table_datum_text_node.nodeType == 3) {

num_revisions = 0; // to flag for errors

temp_table_datum_text = temp_table_datum_text_node.data;

temp_table_datum_text =if (temp_table_datum_text.replacematch(/[^0-9]*\(One/ig, "");) {

num_revisions = 2;

if (temp_table_datum_text) {

} else {

num_revisions = temp_table_datum_text;

temp_table_datum_text = temp_table_datum_text.replace(/[^0-9]*/ig, "");

num_revisions++;

if (temp_table_datum_text) {

if (num_revisions == 1) { // should never happen, but...

num_revisions = temp_table_datum_text;

revisions = "The newer version is separated from the older version by one revision.";

} else { num_revisions++;

revisions = "The newer version is separated from the older version by " + num_revisions + " revisions.";

}

}

if (num_revisions == 1) { // should never happen, but...

}

revisions = "The newer version is separated from the older version by one revision.";

} else {

revisions = "The newer version is separated from the older version by " + num_revisions + " revisions.";

}

} // closes check that the first child node is a text node

} else if (temp_table_datum.className == "diff-context") {

num_diff_context_lines++;

Line 272 ⟶ 407:

temp_added_line = temp_added_line.replace(/&nbsp;/ig, " ");

temp_added_line = temp_added_line.replace(/&#160;/ig, " ");

temp_added_line = temp_added_line.replace(/\'\'\'/ig, "");

temp_added_line = temp_added_line.replace(/\'\'/ig, "");

temp_added_line = temp_added_line.replace(/\s+/ig, " ");

} else { temp_added_line = ""; }

if (temp_added_line == prev_deleted_line) { num_diff_addedlines = 0; continue; }

if (temp_added_line.replace(/\s/ig, "").length < 1) { num_diff_addedlines = 0; continue; }

added_span_nodes = temp_table_datum.getElementsByTagName("SPAN");

if (!added_span_nodes) { num_added_spans = 0; continue; }

Line 311 ⟶ 449:

temp_deleted_line = temp_deleted_line.replace(/&nbsp;/ig, " ");

temp_deleted_line = temp_deleted_line.replace(/&#160;/ig, " ");

temp_deleted_line = temp_deleted_line.replace(/\'\'\'/ig, "");

temp_deleted_line = temp_deleted_line.replace(/\'\'/ig, "");

temp_deleted_line = temp_deleted_line.replace(/\s+/ig, " ");

} else { temp_deleted_line = ""; }

if (temp_deleted_line == prev_added_line) { num_diff_addedlines = 0; continue; }

if (temp_deleted_line.replace(/\s/ig, "").length < 1) { num_diff_deletedlines = 0; continue; }

deleted_span_nodes = temp_table_datum.getElementsByTagName("SPAN");

if (!deleted_span_nodes) { num_deleted_spans = 0; continue; }

Line 338 ⟶ 479:

} // closes loop over the data within a table row

if ((num_diff_addedlines > 0) && (temp_added_line) && (num_diff_deletedlines > 0) && (temp_deleted_line)) {

current_new_line_number++;

current_old_line_number++;

Line 391 ⟶ 532:

current_old_line_number++;

} // closes classification change as addition, deletion or replacement

prev_added_line = temp_added_line;

prev_deleted_line = temp_deleted_line;

} // closes loop over the table rows

Line 415 ⟶ 553:

if (num_additions>0) {

if (num_additions == num_changes) {

alert_string += ".\n\n");

} else if ((num_deletions == 0) || (num_replacements == 0)) {

alert_string += " and ";

Line 436 ⟶ 574:

if (num_replacements == 1) {

alert_string += "one replacement.\n\n";

} else if (num_deletionsnum_replacements > 1) {

alert_string += num_replacements + " replacements.\n\n";

}

Line 455 ⟶ 593:

addOnloadHook(function () {

mw.util.addPortletLink('p-cactions', 'javascript:quickDiffs()', 'qd', 'ca-diffquickdiff', 'Summarizes the differences between two page versions', 'b', '');

});