Function findStartLine

tools/pythonauto/static/codemirrorepl/codemirrorepl.js:1975–1988

(n)

        // smallest indentation, which tends to need the least context to
        // parse correctly.
        function findStartLine(n) {
            var minindent, minline;
            for (var search = n, lim = n - 40; search > lim; --search) {
                if (search == 0) return 0;
                var line = getLine(search-1);
                if (line.stateAfter) return search;
                var indented = line.indentation(options.tabSize);
                if (minline == null || minindent > indented) {
                    minline = search - 1;
                    minindent = indented;
                }
            }
            return minline;
        }
        function getStateBefore(n) {
            var start = findStartLine(n), state = start && getLine(start-1).stateAfter;
            if (!state) state = startState(mode);