comparison forum/Themes/default/spellcheck.js @ 76:e3e11437ecea website

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+// These are variables the popup is going to want to access...
+var spell_formname, spell_fieldname;
+
+// Spell check the specified field in the specified form.
+function spellCheck(formName, fieldName)
+{
+	// Grab the (hidden) spell checking form.
+	var spellform = document.forms.spell_form;
+
+	// Register the name of the editing form for future reference.
+	spell_formname = formName;
+	spell_fieldname = fieldName;
+
+	// This should match a word (most of the time).
+	var regexpWordMatch = /(?:<[^>]+>)|(?:\[[^ ][^\]]*\])|(?:&[^; ]+;)|(?:[^0-9\s\]\[{};:"\\|,<.>\/?`~!@#$%^&*()_+=]+)/g;
+
+	// These characters can appear within words.
+	var aWordCharacters = ['-', '\''];
+
+	var aWords = new Array(), aResult = new Array();
+	var sText = document.forms[formName][fieldName].value
+	var bInCode = false;
+	var iOffset1, iOffset2;
+
+	// Loop through all words.
+	while ((aResult = regexpWordMatch.exec(sText)) && typeof(aResult) != 'undefined')
+	{
+		iOffset1 = 0;
+		iOffset2 = aResult[0].length - 1;
+
+		// Strip the dashes and hyphens from the begin of the word.
+		while (in_array(aResult[0].charAt(iOffset1), aWordCharacters) && iOffset1 < iOffset2)
+			iOffset1++;
+
+		// Strip the dashes and hyphens from the end of the word.
+		while (in_array(aResult[0].charAt(iOffset2), aWordCharacters) && iOffset1 < iOffset2)
+			iOffset2--;
+
+		// I guess there's only dashes and hyphens in this word...
+		if (iOffset1 == iOffset2)
+			continue;
+
+		// Ignore code blocks.
+		if (aResult[0].substr(0, 5).toLowerCase() == '[code')
+			bInCode = true;
+
+		// Glad we're out of that code block!
+		else if (bInCode && aResult[0].substr(0, 7).toLowerCase() == '[/code]')
+			bInCode = false;
+
+		// Now let's get to business.
+		else if (!bInCode && !in_array(aResult[0].charAt(0), ['[', '<']) && aResult[0].toUpperCase() != aResult[0])
+			aWords[aWords.length] = aResult[0].substr(iOffset1, iOffset2 - iOffset1 + 1) + '|' + (iOffset1 + sText.substr(0, aResult.index).length) + '|' + (iOffset2 + sText.substr(0, aResult.index).length);
+	}
+
+	// Open the window...
+	openSpellWin(640, 480);
+
+	// Pass the data to a form...
+	spellform.spellstring.value = aWords.join('\n');
+
+	//  and go!
+	spellform.submit();
+
+	return true;
+}
+
+// Private functions -------------------------------
+
+// Globals...
+var wordindex = -1, offsetindex = 0;
+var ignoredWords = [];
+
+// A "misspelled word" object.
+function misp(word, start, end, suggestions)
+{
+	// The word, start index, end index, and array of suggestions.
+	this.word = word;
+	this.start = start;
+	this.end = end;
+	this.suggestions = suggestions;
+}
+
+// Replace the word in the misps array at the "wordindex" index.  The
+// misps array is generated by a PHP script after the string to be spell
+// checked is evaluated with pspell.
+function replaceWord()
+{
+	var strstart = "";
+	var strend;
+
+	// If this isn't the beginning of the string then get all of the string
+	// that is before the word we are replacing.
+	if (misps[wordindex].start != 0)
+		strstart = mispstr.slice(0, misps[wordindex].start + offsetindex);
+
+	// Get the end of the string after the word we are replacing.
+	strend = mispstr.slice(misps[wordindex].end + 1 + offsetindex);
+
+	// Rebuild the string with the new word.
+	mispstr = strstart + document.forms.spellingForm.changeto.value + strend;
+
+	// Update offsetindex to compensate for replacing a word with a word
+	// of a different length.
+	offsetindex += document.forms.spellingForm.changeto.value.length - misps[wordindex].word.length;
+
+	// Update the word so future replaceAll calls don't change it.
+	misps[wordindex].word = document.forms.spellingForm.changeto.value;
+
+	nextWord(false);
+}
+
+// Replaces all instances of currently selected word with contents chosen by user.
+// Note: currently only replaces words after highlighted word.  I think we can re-index
+// all words at replacement or ignore time to have it wrap to the beginning if we want
+// to.
+function replaceAll()
+{
+	var strend;
+	var idx;
+	var origword;
+	var localoffsetindex = offsetindex;
+
+	origword = misps[wordindex].word;
+
+	// Re-index everything past the current word.
+	for (idx = wordindex; idx < misps.length; idx++)
+	{
+		misps[idx].start += localoffsetindex;
+		misps[idx].end += localoffsetindex;
+	}
+
+	localoffsetindex = 0;
+
+	for (idx = 0; idx < misps.length; idx++)
+	{
+		if (misps[idx].word == origword)
+		{
+			var strstart = "";
+			if (misps[idx].start != 0)
+				strstart = mispstr.slice(0, misps[idx].start + localoffsetindex);
+
+			// Get the end of the string after the word we are replacing.
+			strend = mispstr.slice(misps[idx].end + 1 + localoffsetindex);
+
+			// Rebuild the string with the new word.
+			mispstr = strstart + document.forms.spellingForm.changeto.value + strend;
+
+			// Update offsetindex to compensate for replacing a word with a word
+			// of a different length.
+			localoffsetindex += document.forms.spellingForm.changeto.value.length - misps[idx].word.length;
+		}
+
+		// We have to re-index everything after replacements.
+		misps[idx].start += localoffsetindex;
+		misps[idx].end += localoffsetindex;
+	}
+
+	// Add the word to the ignore array.
+	ignoredWords[origword] = true;
+
+	// Reset offsetindex since we re-indexed.
+	offsetindex = 0;
+
+	nextWord(false);
+}
+
+// Highlight the word that was selected using the nextWord function.
+function highlightWord()
+{
+	var strstart = "";
+	var strend;
+
+	// If this isn't the beginning of the string then get all of the string
+	// that is before the word we are replacing.
+	if (misps[wordindex].start != 0)
+		strstart = mispstr.slice(0, misps[wordindex].start + offsetindex);
+
+	// Get the end of the string after the word we are replacing.
+	strend = mispstr.slice(misps[wordindex].end + 1 + offsetindex);
+
+	// Rebuild the string with a span wrapped around the misspelled word
+	// so we can highlight it in the div the user is viewing the string in.
+	var divptr, newValue;
+	divptr = document.getElementById("spellview");
+
+	newValue = htmlspecialchars(strstart) + '<span class="highlight" id="h1">' + misps[wordindex].word + '</span>' + htmlspecialchars(strend);
+	setInnerHTML(divptr, newValue.replace(/_\|_/g, '<br />'));
+
+	// We could use scrollIntoView, but it's just not that great anyway.
+	var spellview_height = typeof(document.getElementById("spellview").currentStyle) != "undefined" ? parseInt(document.getElementById("spellview").currentStyle.height) : document.getElementById("spellview").offsetHeight;
+	var word_position = document.getElementById("h1").offsetTop;
+	var current_position = document.getElementById("spellview").scrollTop;
+
+	// The spellview is not tall enough!  Scroll down!
+	if (spellview_height <= (word_position + current_position))
+		document.getElementById("spellview").scrollTop = word_position + current_position - spellview_height + 32;
+}
+
+// Display the next misspelled word to the user and populate the suggested spellings box.
+function nextWord(ignoreall)
+{
+	// Push ignored word onto ignoredWords array.
+	if (ignoreall)
+		ignoredWords[misps[wordindex].word] = true;
+
+	// Update the index of all words we have processed...
+	// This must be done to accomodate the replaceAll function.
+	if (wordindex >= 0)
+	{
+		misps[wordindex].start += offsetindex;
+		misps[wordindex].end += offsetindex;
+	}
+
+	// Increment the counter for the array of misspelled words.
+	wordindex++;
+
+	// Draw it and quit if there are no more misspelled words to evaluate.
+	if (misps.length <= wordindex)
+	{
+		var divptr;
+		divptr = document.getElementById("spellview");
+		setInnerHTML(divptr, htmlspecialchars(mispstr).replace(/_\|_/g, "<br />"));
+
+		while (document.forms.spellingForm.suggestions.options.length > 0)
+			document.forms.spellingForm.suggestions.options[0] = null;
+
+		alert(txt['done']);
+		document.forms.spellingForm.change.disabled = true;
+		document.forms.spellingForm.changeall.disabled = true;
+		document.forms.spellingForm.ignore.disabled = true;
+		document.forms.spellingForm.ignoreall.disabled = true;
+
+		// Put line feeds back...
+		mispstr = mispstr.replace(/_\|_/g, "\n");
+
+		// Get a handle to the field we need to re-populate.
+		window.opener.document.forms[spell_formname][spell_fieldname].value = mispstr;
+		window.opener.document.forms[spell_formname][spell_fieldname].focus();
+		window.close();
+		return true;
+	}
+
+	// Check to see if word is supposed to be ignored.
+	if (typeof(ignoredWords[misps[wordindex].word]) != "undefined")
+	{
+		nextWord(false);
+		return false;
+	}
+
+	// Clear out the suggestions box!
+	while (document.forms.spellingForm.suggestions.options.length > 0)
+		document.forms.spellingForm.suggestions.options[0] = null;
+
+	// Re-populate the suggestions box if there are any suggested spellings for the word.
+	if (misps[wordindex].suggestions.length)
+	{
+		for (var sugidx = 0; sugidx < misps[wordindex].suggestions.length; sugidx++)
+		{
+			var newopt = new Option(misps[wordindex].suggestions[sugidx], misps[wordindex].suggestions[sugidx]);
+			document.forms.spellingForm.suggestions.options[sugidx] = newopt;
+
+			if (sugidx == 0)
+			{
+				newopt.selected = true;
+				document.forms.spellingForm.changeto.value = newopt.value;
+				document.forms.spellingForm.changeto.select();
+			}
+		}
+	}
+
+	if (document.forms.spellingForm.suggestions.options.length == 0)
+		document.forms.spellingForm.changeto.value = "";
+
+	highlightWord();
+
+	return false;
+}
+
+function htmlspecialchars(thetext)
+{
+	thetext = thetext.replace(/\</g, "&lt;");
+	thetext = thetext.replace(/\>/g, "&gt;");
+	thetext = thetext.replace(/\n/g, "<br />");
+	thetext = thetext.replace(/\ \ /g, " &nbsp;");
+
+	return thetext;
+}
+
+function openSpellWin(width, height)
+{
+	window.open("", "spellWindow", "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=" + width + ",height=" + height);
+}