-function filtertable(query, action) {
- var rows = document.getElementsByTagName('TBODY')[0].rows;
+function filtercell(el, set, action) {
+ switch (action) {
+ case 'focus':
+ el.classList[set ? 'add' : 'remove'](action);
+ break;
+ case 'target':
+ if (set) el.classList.toggle(action);
+ break;
+ case 'remove':
+ if (set) el.style.display = 'none';
+ break;
+ case 'add':
+ if (set) el.style.display = '';
+ break;
+ case 'toggle':
+ if (set) el.style.display = el.style.display == 'none' ? '' : 'none';
+ break;
+ case 'filter':
+ el.style.display = set ? '' : 'none';
+ if (!Element.prototype.hasOwnProperty('classList')) return;
+ // continue
+ default: // reset
+ el.classList.remove('focus');
+ el.classList.remove('target');
+ }
+}
+
+function filterrows(table, match, action) {
+ var rows = table.tBodies[0].rows;
for (var i = 0; i < rows.length; i++) {
- var keep = query.match(/^[A-Z0-9 ]{2,}$/) ? rows[i].cells[0].title.match(query, 'i')
- : rows[i].cells[1].textContent.match(query, query.match(/[A-Z]/) ? '' : 'i');
- switch (action) {
- case 'focus':
- rows[i].classList[keep ? 'add' : 'remove'](action);
- break;
- case 'target':
- if (keep) rows[i].classList.toggle(action);
- break;
- case 'filter':
- rows[i].style.display = keep ? '' : 'none';
- // continue
- default: // reset
- rows[i].classList.remove('focus');
- rows[i].classList.remove('target');
+ filtercell(rows[i], match(rows[i]), action);
+ }
+}
+
+function filtertable(query, action) {
+ var table = document.getElementsByTagName('TABLE')[0];
+
+ if (!action) {
+ var match = /^([-+?=]?)(.*)/.exec(query);
+ switch (match[1]) {
+ case '+': action = 'add'; break;
+ case '-': action = 'remove'; break;
+ case '?': action = 'toggle'; break;
+ case '=': action = 'filter'; break;
}
+ query = match[2];
+ }
+
+ if (/^[A-Z0-9 ]{2,}$/.test(query)) {
+ // category title if all uppercase
+ var match = function(row) {
+ return row.cells[0].title.match(query, 'i');
+ };
+ }
+ else {
+ // title text (case-insensitive unless caps in input)
+ var match = function(row) {
+ return row.cells[1].textContent.match(query, /[A-Z]/.test(query) ? '' : 'i');
+ };
}
+ filterrows(table, match, action || 'filter');
}
function newelement(tagname, attrlist, childlist) {
target.parentNode.insertBefore(newelement(
'form', {
id: 'search',
- class: 'aside',
- onsubmit: "filtertable(this.q.value, 'filter'); this.q.value = ''; return false",
+ 'class': 'aside',
+ onsubmit: "filtertable(this.q.value); this.q.value = ''; return false",
},
[
newelement('input', {