summaryrefslogtreecommitdiff
path: root/src/logoot.js
diff options
context:
space:
mode:
authorAnthony Wang2023-02-15 16:22:43 -0500
committerAnthony Wang2023-02-15 16:22:43 -0500
commit091ff04c2420c8549ff581399212b4e3346864ee (patch)
tree746ad8767db3f3eab288eab4f08b74c37742777e /src/logoot.js
parentfb3c976380e704a1c129f141f0bdb7f5f4576611 (diff)
Delete all files except for demo
Diffstat (limited to 'src/logoot.js')
-rw-r--r--src/logoot.js153
1 files changed, 0 insertions, 153 deletions
diff --git a/src/logoot.js b/src/logoot.js
deleted file mode 100644
index c8c7c02..0000000
--- a/src/logoot.js
+++ /dev/null
@@ -1,153 +0,0 @@
-export default {
-
- query(property) {
- return {
- [property]: {
- $type: 'array',
- $type: ['int', 'long'],
- },
- $nor: [
- { [property]: { $gt: this.maxInt } },
- { [property]: { $lt: 0 } },
- ]
- }
- },
-
- get before() {
- return []
- },
-
- get after() {
- return [this.maxInt+1]
- },
-
- between(a, b, scale=100) {
- // Strip zeros and find common length
- const aLength = this.lengthWithoutZeros(a)
- const bLength = this.lengthWithoutZeros(b)
- const minLength = Math.min(aLength, bLength)
-
- // Initialize output
- const out = []
-
- // Find the break point where a[i] != b[i]
- let i = 0
- while (i < minLength && a[i] == b[i]) {
- out.push(a[i])
- i++
- }
-
- // Initialize upper and lower bounds for
- // sampling the last digit
- let lowerBound = 1
- let upperBound = this.maxInt
-
- if (i < minLength) {
- // If the break happened before we hit
- // the end of one of the arrays
-
- if (Math.abs(a[i] - b[i]) > 1) {
- // If a[i] and b[i] are more than one
- // away from each other, just sample
- // between them
- lowerBound = Math.min(a[i], b[i]) + 1
- upperBound = Math.max(a[i], b[i]) - 1
- } else {
- // If they are one away no integers
- // will fit in between, so add new layer
- const lesser = (a[i] < b[i])? a : b
- out.push(lesser[i])
- i++
-
- while (i < lesser.length && lesser[i] >= this.maxInt) {
- // If the lesser is at it's limit,
- // we will need to add even more layers
- out.push(lesser[i])
- i++
- }
-
- if (i < lesser.length) {
- // Sample something greater than
- // the lesser digit
- lowerBound = lesser[i] + 1
- }
- }
- } else {
- // The break happened because we hit
- // the end of one of the arrays.
-
- if (aLength == bLength) {
- // If they are entirely equal,
- // there is nothing in between
- // just return what we have
- return out
- }
-
- const longerLength = Math.max(aLength, bLength)
- const longer = (a.length == longerLength)? a : b
- while (i < longerLength && longer[i] == 0) {
- // Skip past the zeros because we can't sample
- // for digits less than zero
- out.push(0)
- i++
- }
-
- if (i < longerLength) {
- if (longer[i] == 1) {
- // If longer is at it's limit,
- // we still need to add another layer
- out.push(0)
- } else {
- upperBound = longer[i] - 1
- }
- }
- }
-
- // Create a random number in [0,1] but bias it to be small,
- // so that numbers tend to increase by a small amount.
- let random = Math.random()
- random = -Math.log(1-random)/scale
- random = Math.min(random, 1)
-
- // Finally, sample between the upper and lower bounds
- out.push(Math.floor(random * (upperBound + 1 - lowerBound)) + lowerBound)
- return out
- },
-
- compare(a, b) {
- // Strip zeros and find common length
- const aLength = this.lengthWithoutZeros(a)
- const bLength = this.lengthWithoutZeros(b)
- const minLength = Math.min(aLength, bLength)
-
- // See if there are any differences
- for (let i = 0; i < minLength; i++) {
- if (a[i] > b[i]) {
- return 1
- } else if (a[i] < b[i]) {
- return -1
- }
- }
-
- // If they are all the same up til now,
- // the longer one is bigger
- if (aLength > bLength) {
- return 1
- } else if (aLength < bLength) {
- return -1
- } else {
- return 0
- }
- },
-
-
- lengthWithoutZeros(a) {
- let length = a.length
- while (length > 0 && a[length - 1] == 0) {
- length--
- }
- return length
- },
-
- maxInt: 9007199254740991,
-}