diff options
Diffstat (limited to 'node_modules/jsprim/lib')
-rw-r--r-- | node_modules/jsprim/lib/jsprim.js | 735 |
1 files changed, 0 insertions, 735 deletions
diff --git a/node_modules/jsprim/lib/jsprim.js b/node_modules/jsprim/lib/jsprim.js deleted file mode 100644 index f7d0d81..0000000 --- a/node_modules/jsprim/lib/jsprim.js +++ /dev/null @@ -1,735 +0,0 @@ -/* - * lib/jsprim.js: utilities for primitive JavaScript types - */ - -var mod_assert = require('assert-plus'); -var mod_util = require('util'); - -var mod_extsprintf = require('extsprintf'); -var mod_verror = require('verror'); -var mod_jsonschema = require('json-schema'); - -/* - * Public interface - */ -exports.deepCopy = deepCopy; -exports.deepEqual = deepEqual; -exports.isEmpty = isEmpty; -exports.hasKey = hasKey; -exports.forEachKey = forEachKey; -exports.pluck = pluck; -exports.flattenObject = flattenObject; -exports.flattenIter = flattenIter; -exports.validateJsonObject = validateJsonObjectJS; -exports.validateJsonObjectJS = validateJsonObjectJS; -exports.randElt = randElt; -exports.extraProperties = extraProperties; -exports.mergeObjects = mergeObjects; - -exports.startsWith = startsWith; -exports.endsWith = endsWith; - -exports.parseInteger = parseInteger; - -exports.iso8601 = iso8601; -exports.rfc1123 = rfc1123; -exports.parseDateTime = parseDateTime; - -exports.hrtimediff = hrtimeDiff; -exports.hrtimeDiff = hrtimeDiff; -exports.hrtimeAccum = hrtimeAccum; -exports.hrtimeAdd = hrtimeAdd; -exports.hrtimeNanosec = hrtimeNanosec; -exports.hrtimeMicrosec = hrtimeMicrosec; -exports.hrtimeMillisec = hrtimeMillisec; - - -/* - * Deep copy an acyclic *basic* Javascript object. This only handles basic - * scalars (strings, numbers, booleans) and arbitrarily deep arrays and objects - * containing these. This does *not* handle instances of other classes. - */ -function deepCopy(obj) -{ - var ret, key; - var marker = '__deepCopy'; - - if (obj && obj[marker]) - throw (new Error('attempted deep copy of cyclic object')); - - if (obj && obj.constructor == Object) { - ret = {}; - obj[marker] = true; - - for (key in obj) { - if (key == marker) - continue; - - ret[key] = deepCopy(obj[key]); - } - - delete (obj[marker]); - return (ret); - } - - if (obj && obj.constructor == Array) { - ret = []; - obj[marker] = true; - - for (key = 0; key < obj.length; key++) - ret.push(deepCopy(obj[key])); - - delete (obj[marker]); - return (ret); - } - - /* - * It must be a primitive type -- just return it. - */ - return (obj); -} - -function deepEqual(obj1, obj2) -{ - if (typeof (obj1) != typeof (obj2)) - return (false); - - if (obj1 === null || obj2 === null || typeof (obj1) != 'object') - return (obj1 === obj2); - - if (obj1.constructor != obj2.constructor) - return (false); - - var k; - for (k in obj1) { - if (!obj2.hasOwnProperty(k)) - return (false); - - if (!deepEqual(obj1[k], obj2[k])) - return (false); - } - - for (k in obj2) { - if (!obj1.hasOwnProperty(k)) - return (false); - } - - return (true); -} - -function isEmpty(obj) -{ - var key; - for (key in obj) - return (false); - return (true); -} - -function hasKey(obj, key) -{ - mod_assert.equal(typeof (key), 'string'); - return (Object.prototype.hasOwnProperty.call(obj, key)); -} - -function forEachKey(obj, callback) -{ - for (var key in obj) { - if (hasKey(obj, key)) { - callback(key, obj[key]); - } - } -} - -function pluck(obj, key) -{ - mod_assert.equal(typeof (key), 'string'); - return (pluckv(obj, key)); -} - -function pluckv(obj, key) -{ - if (obj === null || typeof (obj) !== 'object') - return (undefined); - - if (obj.hasOwnProperty(key)) - return (obj[key]); - - var i = key.indexOf('.'); - if (i == -1) - return (undefined); - - var key1 = key.substr(0, i); - if (!obj.hasOwnProperty(key1)) - return (undefined); - - return (pluckv(obj[key1], key.substr(i + 1))); -} - -/* - * Invoke callback(row) for each entry in the array that would be returned by - * flattenObject(data, depth). This is just like flattenObject(data, - * depth).forEach(callback), except that the intermediate array is never - * created. - */ -function flattenIter(data, depth, callback) -{ - doFlattenIter(data, depth, [], callback); -} - -function doFlattenIter(data, depth, accum, callback) -{ - var each; - var key; - - if (depth === 0) { - each = accum.slice(0); - each.push(data); - callback(each); - return; - } - - mod_assert.ok(data !== null); - mod_assert.equal(typeof (data), 'object'); - mod_assert.equal(typeof (depth), 'number'); - mod_assert.ok(depth >= 0); - - for (key in data) { - each = accum.slice(0); - each.push(key); - doFlattenIter(data[key], depth - 1, each, callback); - } -} - -function flattenObject(data, depth) -{ - if (depth === 0) - return ([ data ]); - - mod_assert.ok(data !== null); - mod_assert.equal(typeof (data), 'object'); - mod_assert.equal(typeof (depth), 'number'); - mod_assert.ok(depth >= 0); - - var rv = []; - var key; - - for (key in data) { - flattenObject(data[key], depth - 1).forEach(function (p) { - rv.push([ key ].concat(p)); - }); - } - - return (rv); -} - -function startsWith(str, prefix) -{ - return (str.substr(0, prefix.length) == prefix); -} - -function endsWith(str, suffix) -{ - return (str.substr( - str.length - suffix.length, suffix.length) == suffix); -} - -function iso8601(d) -{ - if (typeof (d) == 'number') - d = new Date(d); - mod_assert.ok(d.constructor === Date); - return (mod_extsprintf.sprintf('%4d-%02d-%02dT%02d:%02d:%02d.%03dZ', - d.getUTCFullYear(), d.getUTCMonth() + 1, d.getUTCDate(), - d.getUTCHours(), d.getUTCMinutes(), d.getUTCSeconds(), - d.getUTCMilliseconds())); -} - -var RFC1123_MONTHS = [ - 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', - 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; -var RFC1123_DAYS = [ - 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; - -function rfc1123(date) { - return (mod_extsprintf.sprintf('%s, %02d %s %04d %02d:%02d:%02d GMT', - RFC1123_DAYS[date.getUTCDay()], date.getUTCDate(), - RFC1123_MONTHS[date.getUTCMonth()], date.getUTCFullYear(), - date.getUTCHours(), date.getUTCMinutes(), - date.getUTCSeconds())); -} - -/* - * Parses a date expressed as a string, as either a number of milliseconds since - * the epoch or any string format that Date accepts, giving preference to the - * former where these two sets overlap (e.g., small numbers). - */ -function parseDateTime(str) -{ - /* - * This is irritatingly implicit, but significantly more concise than - * alternatives. The "+str" will convert a string containing only a - * number directly to a Number, or NaN for other strings. Thus, if the - * conversion succeeds, we use it (this is the milliseconds-since-epoch - * case). Otherwise, we pass the string directly to the Date - * constructor to parse. - */ - var numeric = +str; - if (!isNaN(numeric)) { - return (new Date(numeric)); - } else { - return (new Date(str)); - } -} - - -/* - * Number.*_SAFE_INTEGER isn't present before node v0.12, so we hardcode - * the ES6 definitions here, while allowing for them to someday be higher. - */ -var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991; -var MIN_SAFE_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991; - - -/* - * Default options for parseInteger(). - */ -var PI_DEFAULTS = { - base: 10, - allowSign: true, - allowPrefix: false, - allowTrailing: false, - allowImprecise: false, - trimWhitespace: false, - leadingZeroIsOctal: false -}; - -var CP_0 = 0x30; -var CP_9 = 0x39; - -var CP_A = 0x41; -var CP_B = 0x42; -var CP_O = 0x4f; -var CP_T = 0x54; -var CP_X = 0x58; -var CP_Z = 0x5a; - -var CP_a = 0x61; -var CP_b = 0x62; -var CP_o = 0x6f; -var CP_t = 0x74; -var CP_x = 0x78; -var CP_z = 0x7a; - -var PI_CONV_DEC = 0x30; -var PI_CONV_UC = 0x37; -var PI_CONV_LC = 0x57; - - -/* - * A stricter version of parseInt() that provides options for changing what - * is an acceptable string (for example, disallowing trailing characters). - */ -function parseInteger(str, uopts) -{ - mod_assert.string(str, 'str'); - mod_assert.optionalObject(uopts, 'options'); - - var baseOverride = false; - var options = PI_DEFAULTS; - - if (uopts) { - baseOverride = hasKey(uopts, 'base'); - options = mergeObjects(options, uopts); - mod_assert.number(options.base, 'options.base'); - mod_assert.ok(options.base >= 2, 'options.base >= 2'); - mod_assert.ok(options.base <= 36, 'options.base <= 36'); - mod_assert.bool(options.allowSign, 'options.allowSign'); - mod_assert.bool(options.allowPrefix, 'options.allowPrefix'); - mod_assert.bool(options.allowTrailing, - 'options.allowTrailing'); - mod_assert.bool(options.allowImprecise, - 'options.allowImprecise'); - mod_assert.bool(options.trimWhitespace, - 'options.trimWhitespace'); - mod_assert.bool(options.leadingZeroIsOctal, - 'options.leadingZeroIsOctal'); - - if (options.leadingZeroIsOctal) { - mod_assert.ok(!baseOverride, - '"base" and "leadingZeroIsOctal" are ' + - 'mutually exclusive'); - } - } - - var c; - var pbase = -1; - var base = options.base; - var start; - var mult = 1; - var value = 0; - var idx = 0; - var len = str.length; - - /* Trim any whitespace on the left side. */ - if (options.trimWhitespace) { - while (idx < len && isSpace(str.charCodeAt(idx))) { - ++idx; - } - } - - /* Check the number for a leading sign. */ - if (options.allowSign) { - if (str[idx] === '-') { - idx += 1; - mult = -1; - } else if (str[idx] === '+') { - idx += 1; - } - } - - /* Parse the base-indicating prefix if there is one. */ - if (str[idx] === '0') { - if (options.allowPrefix) { - pbase = prefixToBase(str.charCodeAt(idx + 1)); - if (pbase !== -1 && (!baseOverride || pbase === base)) { - base = pbase; - idx += 2; - } - } - - if (pbase === -1 && options.leadingZeroIsOctal) { - base = 8; - } - } - - /* Parse the actual digits. */ - for (start = idx; idx < len; ++idx) { - c = translateDigit(str.charCodeAt(idx)); - if (c !== -1 && c < base) { - value *= base; - value += c; - } else { - break; - } - } - - /* If we didn't parse any digits, we have an invalid number. */ - if (start === idx) { - return (new Error('invalid number: ' + JSON.stringify(str))); - } - - /* Trim any whitespace on the right side. */ - if (options.trimWhitespace) { - while (idx < len && isSpace(str.charCodeAt(idx))) { - ++idx; - } - } - - /* Check for trailing characters. */ - if (idx < len && !options.allowTrailing) { - return (new Error('trailing characters after number: ' + - JSON.stringify(str.slice(idx)))); - } - - /* If our value is 0, we return now, to avoid returning -0. */ - if (value === 0) { - return (0); - } - - /* Calculate our final value. */ - var result = value * mult; - - /* - * If the string represents a value that cannot be precisely represented - * by JavaScript, then we want to check that: - * - * - We never increased the value past MAX_SAFE_INTEGER - * - We don't make the result negative and below MIN_SAFE_INTEGER - * - * Because we only ever increment the value during parsing, there's no - * chance of moving past MAX_SAFE_INTEGER and then dropping below it - * again, losing precision in the process. This means that we only need - * to do our checks here, at the end. - */ - if (!options.allowImprecise && - (value > MAX_SAFE_INTEGER || result < MIN_SAFE_INTEGER)) { - return (new Error('number is outside of the supported range: ' + - JSON.stringify(str.slice(start, idx)))); - } - - return (result); -} - - -/* - * Interpret a character code as a base-36 digit. - */ -function translateDigit(d) -{ - if (d >= CP_0 && d <= CP_9) { - /* '0' to '9' -> 0 to 9 */ - return (d - PI_CONV_DEC); - } else if (d >= CP_A && d <= CP_Z) { - /* 'A' - 'Z' -> 10 to 35 */ - return (d - PI_CONV_UC); - } else if (d >= CP_a && d <= CP_z) { - /* 'a' - 'z' -> 10 to 35 */ - return (d - PI_CONV_LC); - } else { - /* Invalid character code */ - return (-1); - } -} - - -/* - * Test if a value matches the ECMAScript definition of trimmable whitespace. - */ -function isSpace(c) -{ - return (c === 0x20) || - (c >= 0x0009 && c <= 0x000d) || - (c === 0x00a0) || - (c === 0x1680) || - (c === 0x180e) || - (c >= 0x2000 && c <= 0x200a) || - (c === 0x2028) || - (c === 0x2029) || - (c === 0x202f) || - (c === 0x205f) || - (c === 0x3000) || - (c === 0xfeff); -} - - -/* - * Determine which base a character indicates (e.g., 'x' indicates hex). - */ -function prefixToBase(c) -{ - if (c === CP_b || c === CP_B) { - /* 0b/0B (binary) */ - return (2); - } else if (c === CP_o || c === CP_O) { - /* 0o/0O (octal) */ - return (8); - } else if (c === CP_t || c === CP_T) { - /* 0t/0T (decimal) */ - return (10); - } else if (c === CP_x || c === CP_X) { - /* 0x/0X (hexadecimal) */ - return (16); - } else { - /* Not a meaningful character */ - return (-1); - } -} - - -function validateJsonObjectJS(schema, input) -{ - var report = mod_jsonschema.validate(input, schema); - - if (report.errors.length === 0) - return (null); - - /* Currently, we only do anything useful with the first error. */ - var error = report.errors[0]; - - /* The failed property is given by a URI with an irrelevant prefix. */ - var propname = error['property']; - var reason = error['message'].toLowerCase(); - var i, j; - - /* - * There's at least one case where the property error message is - * confusing at best. We work around this here. - */ - if ((i = reason.indexOf('the property ')) != -1 && - (j = reason.indexOf(' is not defined in the schema and the ' + - 'schema does not allow additional properties')) != -1) { - i += 'the property '.length; - if (propname === '') - propname = reason.substr(i, j - i); - else - propname = propname + '.' + reason.substr(i, j - i); - - reason = 'unsupported property'; - } - - var rv = new mod_verror.VError('property "%s": %s', propname, reason); - rv.jsv_details = error; - return (rv); -} - -function randElt(arr) -{ - mod_assert.ok(Array.isArray(arr) && arr.length > 0, - 'randElt argument must be a non-empty array'); - - return (arr[Math.floor(Math.random() * arr.length)]); -} - -function assertHrtime(a) -{ - mod_assert.ok(a[0] >= 0 && a[1] >= 0, - 'negative numbers not allowed in hrtimes'); - mod_assert.ok(a[1] < 1e9, 'nanoseconds column overflow'); -} - -/* - * Compute the time elapsed between hrtime readings A and B, where A is later - * than B. hrtime readings come from Node's process.hrtime(). There is no - * defined way to represent negative deltas, so it's illegal to diff B from A - * where the time denoted by B is later than the time denoted by A. If this - * becomes valuable, we can define a representation and extend the - * implementation to support it. - */ -function hrtimeDiff(a, b) -{ - assertHrtime(a); - assertHrtime(b); - mod_assert.ok(a[0] > b[0] || (a[0] == b[0] && a[1] >= b[1]), - 'negative differences not allowed'); - - var rv = [ a[0] - b[0], 0 ]; - - if (a[1] >= b[1]) { - rv[1] = a[1] - b[1]; - } else { - rv[0]--; - rv[1] = 1e9 - (b[1] - a[1]); - } - - return (rv); -} - -/* - * Convert a hrtime reading from the array format returned by Node's - * process.hrtime() into a scalar number of nanoseconds. - */ -function hrtimeNanosec(a) -{ - assertHrtime(a); - - return (Math.floor(a[0] * 1e9 + a[1])); -} - -/* - * Convert a hrtime reading from the array format returned by Node's - * process.hrtime() into a scalar number of microseconds. - */ -function hrtimeMicrosec(a) -{ - assertHrtime(a); - - return (Math.floor(a[0] * 1e6 + a[1] / 1e3)); -} - -/* - * Convert a hrtime reading from the array format returned by Node's - * process.hrtime() into a scalar number of milliseconds. - */ -function hrtimeMillisec(a) -{ - assertHrtime(a); - - return (Math.floor(a[0] * 1e3 + a[1] / 1e6)); -} - -/* - * Add two hrtime readings A and B, overwriting A with the result of the - * addition. This function is useful for accumulating several hrtime intervals - * into a counter. Returns A. - */ -function hrtimeAccum(a, b) -{ - assertHrtime(a); - assertHrtime(b); - - /* - * Accumulate the nanosecond component. - */ - a[1] += b[1]; - if (a[1] >= 1e9) { - /* - * The nanosecond component overflowed, so carry to the seconds - * field. - */ - a[0]++; - a[1] -= 1e9; - } - - /* - * Accumulate the seconds component. - */ - a[0] += b[0]; - - return (a); -} - -/* - * Add two hrtime readings A and B, returning the result as a new hrtime array. - * Does not modify either input argument. - */ -function hrtimeAdd(a, b) -{ - assertHrtime(a); - - var rv = [ a[0], a[1] ]; - - return (hrtimeAccum(rv, b)); -} - - -/* - * Check an object for unexpected properties. Accepts the object to check, and - * an array of allowed property names (strings). Returns an array of key names - * that were found on the object, but did not appear in the list of allowed - * properties. If no properties were found, the returned array will be of - * zero length. - */ -function extraProperties(obj, allowed) -{ - mod_assert.ok(typeof (obj) === 'object' && obj !== null, - 'obj argument must be a non-null object'); - mod_assert.ok(Array.isArray(allowed), - 'allowed argument must be an array of strings'); - for (var i = 0; i < allowed.length; i++) { - mod_assert.ok(typeof (allowed[i]) === 'string', - 'allowed argument must be an array of strings'); - } - - return (Object.keys(obj).filter(function (key) { - return (allowed.indexOf(key) === -1); - })); -} - -/* - * Given three sets of properties "provided" (may be undefined), "overrides" - * (required), and "defaults" (may be undefined), construct an object containing - * the union of these sets with "overrides" overriding "provided", and - * "provided" overriding "defaults". None of the input objects are modified. - */ -function mergeObjects(provided, overrides, defaults) -{ - var rv, k; - - rv = {}; - if (defaults) { - for (k in defaults) - rv[k] = defaults[k]; - } - - if (provided) { - for (k in provided) - rv[k] = provided[k]; - } - - if (overrides) { - for (k in overrides) - rv[k] = overrides[k]; - } - - return (rv); -} |