(function (mod){ 
if (typeof exports == "object" && typeof module == "object") return mod(exports); 
if (typeof define == "function" && define.amd) return define(["exports"] , mod); 
mod(tern.comment || (tern.comment = { 
}
)); 
} 
)(function (exports){ 
function isSpace(ch){ 
return (ch < 14 && ch > 8) || ch === 32 || ch === 160; 
} 
function onOwnLine(text, pos){ 
for (; pos > 0; --pos){ 
var ch = text.charCodeAt(pos - 1); 
if (ch == 10) break ; 
if (!isSpace(ch)) return false ; 
} 
return true ; 
} 
exports.commentsBefore = function (text, pos){ 
var found = null , emptyLines = 0, topIsLineComment; 
out: while (pos > 0){ 
var prev = text.charCodeAt(pos - 1); 
if (prev == 10) { 
for (var scan = --pos, sawNonWS = false ; 
scan > 0; --scan){ 
prev = text.charCodeAt(scan - 1); 
if (prev == 47 && text.charCodeAt(scan - 2) == 47) { 
if (!onOwnLine(text, scan - 2)) break out; 
var content = text.slice(scan, pos); 
if (!emptyLines && topIsLineComment) found[0] = content + "\n" + found[0]; 
 else (found || (found = [] )).unshift(content); 
topIsLineComment = true ; 
emptyLines = 0; 
pos = scan - 2; 
break ; 
} 
 else if (prev == 10) { 
if (!sawNonWS && ++emptyLines > 1) break out; 
break ; 
} 
 else if (!sawNonWS && !isSpace(prev)) { 
sawNonWS = true ; 
} 
} 
} 
 else if (prev == 47 && text.charCodeAt(pos - 2) == 42) { 
for (var scan = pos - 2; 
scan > 1; --scan){ 
if (text.charCodeAt(scan - 1) == 42 && text.charCodeAt(scan - 2) == 47) { 
if (!onOwnLine(text, scan - 2)) break out; 
(found || (found = [] )).unshift(text.slice(scan, pos - 2)); 
topIsLineComment = false ; 
emptyLines = 0; 
break ; 
} 
} 
pos = scan - 2; 
} 
 else if (isSpace(prev)) { 
--pos; 
} 
 else { 
break ; 
} 
} 
return found; 
} 
; 
exports.commentAfter = function (text, pos){ 
while (pos < _AN_Read_length("length", text)){ 
var next = text.charCodeAt(pos); 
if (next == 47) { 
var after = text.charCodeAt(pos + 1), end; 
if (after == 47) end = text.indexOf("\n", pos + 2); 
 else if (after == 42) end = text.indexOf("*/", pos + 2); 
 else return ; 
return text.slice(pos + 2, end < 0? _AN_Read_length("length", text): end); 
} 
 else if (isSpace(next)) { 
++pos; 
} 
} 
} 
; 
exports.ensureCommentsBefore = function (text, node){ 
if (node.hasOwnProperty("commentsBefore")) return node.commentsBefore; 
return node.commentsBefore = exports.commentsBefore(text, node.start); 
} 
; 
} 
);