Created
June 17, 2012 23:12
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set of underscore.js mixins, including, most importantly, a function to parse the link header for paging (a la the Github API). ParseLinkHeader is the javascript version of Github's PageLinks Java method => http://bit.ly/L71lRb
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_.mixin({ | |
capitalize: function(string) { | |
return string.charAt(0).toUpperCase() + string.substring(1).toLowerCase(); | |
}, | |
startsWith: function(string, start) { | |
return string.slice(0, start.length) == start; | |
}, | |
endsWith: function(string, end) { | |
return string.slice(-end.length) == end; | |
}, | |
parseLinkHeader: function(string) { | |
paging = {}; | |
if (string !== null) { | |
var links = string.split(','); | |
for (var i = 0, len = links.length; i < len; i++) { | |
var segments = links[i].split(';'); | |
if (segments.length < 2) | |
continue; | |
var linkPart = segments[0].trim(); | |
if (!this.startsWith(linkPart, "<") || !this.endsWith(linkPart, ">")) | |
continue; | |
linkPart = linkPart.substring(1, linkPart.length - 1); | |
for (var j = 0, seg_len = segments.length; j < seg_len; j++) { | |
var rel = segments[j].trim().split("="); | |
if (rel.length < 2) | |
continue; | |
var relValue = rel[1]; | |
if (this.startsWith(relValue, "\"") && this.endsWith(relValue, "\"")) | |
relValue = relValue.substring(1, relValue.length - 1); | |
if (relValue == 'first') | |
paging.first = linkPart; | |
else if (relValue == 'last') | |
paging.last = linkPart; | |
else if (relValue == 'next') | |
paging.next = linkPart; | |
else if (relValue == 'prev') | |
paging.prev = linkPart; | |
} | |
} | |
} | |
return paging; | |
} | |
}); |
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