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lookup-reference.js
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lookup-reference.js
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var error = require('./error');
exports.MATCH = function(lookupValue, lookupArray, matchType) {
if (!lookupValue && !lookupArray) {
return error.na;
}
if (arguments.length === 2) {
matchType = 1;
}
if (!(lookupArray instanceof Array)) {
return error.na;
}
if (matchType !== -1 && matchType !== 0 && matchType !== 1) {
return error.na;
}
var index;
var indexValue;
for (var idx = 0; idx < lookupArray.length; idx++) {
if (matchType === 1) {
if (lookupArray[idx] === lookupValue) {
return idx + 1;
} else if (lookupArray[idx] < lookupValue) {
if (!indexValue) {
index = idx + 1;
indexValue = lookupArray[idx];
} else if (lookupArray[idx] > indexValue) {
index = idx + 1;
indexValue = lookupArray[idx];
}
}
} else if (matchType === 0) {
if (typeof lookupValue === 'string') {
lookupValue = lookupValue.replace(/\?/g, '.');
if (lookupArray[idx].toLowerCase().match(lookupValue.toLowerCase())) {
return idx + 1;
}
} else {
if (lookupArray[idx] === lookupValue) {
return idx + 1;
}
}
} else if (matchType === -1) {
if (lookupArray[idx] === lookupValue) {
return idx + 1;
} else if (lookupArray[idx] > lookupValue) {
if (!indexValue) {
index = idx + 1;
indexValue = lookupArray[idx];
} else if (lookupArray[idx] < indexValue) {
index = idx + 1;
indexValue = lookupArray[idx];
}
}
}
}
return index ? index : error.na;
};