| 3798 | } |
| 3799 | |
| 3800 | function findSentence(cm, cur, repeat, dir) { |
| 3801 | |
| 3802 | /* |
| 3803 | Takes an index object |
| 3804 | { |
| 3805 | line: the line string, |
| 3806 | ln: line number, |
| 3807 | pos: index in line, |
| 3808 | dir: direction of traversal (-1 or 1) |
| 3809 | } |
| 3810 | and modifies the line, ln, and pos members to represent the |
| 3811 | next valid position or sets them to null if there are |
| 3812 | no more valid positions. |
| 3813 | */ |
| 3814 | function nextChar(cm, idx) { |
| 3815 | if (idx.pos + idx.dir < 0 || idx.pos + idx.dir >= idx.line.length) { |
| 3816 | idx.ln += idx.dir; |
| 3817 | if (!isLine(cm, idx.ln)) { |
| 3818 | idx.line = null; |
| 3819 | idx.ln = null; |
| 3820 | idx.pos = null; |
| 3821 | return; |
| 3822 | } |
| 3823 | idx.line = cm.getLine(idx.ln); |
| 3824 | idx.pos = (idx.dir > 0) ? 0 : idx.line.length - 1; |
| 3825 | } |
| 3826 | else { |
| 3827 | idx.pos += idx.dir; |
| 3828 | } |
| 3829 | } |
| 3830 | |
| 3831 | /* |
| 3832 | Performs one iteration of traversal in forward direction |
| 3833 | Returns an index object of the new location |
| 3834 | */ |
| 3835 | function forward(cm, ln, pos, dir) { |
| 3836 | var line = cm.getLine(ln); |
| 3837 | var stop = (line === ""); |
| 3838 | |
| 3839 | var curr = { |
| 3840 | line: line, |
| 3841 | ln: ln, |
| 3842 | pos: pos, |
| 3843 | dir: dir, |
| 3844 | } |
| 3845 | |
| 3846 | var last_valid = { |
| 3847 | ln: curr.ln, |
| 3848 | pos: curr.pos, |
| 3849 | } |
| 3850 | |
| 3851 | var skip_empty_lines = (curr.line === ""); |
| 3852 | |
| 3853 | // Move one step to skip character we start on |
| 3854 | nextChar(cm, curr); |
| 3855 | |
| 3856 | while (curr.line !== null) { |
| 3857 | last_valid.ln = curr.ln; |