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agg_pipeline.pegjs
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{
// remove commas and flatten
// this works with our ("," expression*) ","? idiom
function cleanAndFlatten(arr) {
var o = arr.map(part => clean(part))
.map(arr => arr[0])
return o
}
// remove commas
function clean(arr) {
var o = arr.filter(word => word !== ',')
return o
}
// array will always have elements of the form [ "key", ":", "value" ]
function objOfArray(arr) {
var ret = {}
for(let tup of arr) {
ret[tup[0]] = tup[2]
}
return ret
}
function toBool(e) {
if (e === '0') {
return 0
} else if(e === 'false') {
return false
} else if (e === '1') {
return 1
} else if (e === 'true') {
return true
}
return e
}
// make sure that $project is either all inclusive or all exclusive
// we perform this on the initial array before changing to an object
// because it's easier for me to just use filter
function checkExclusivity(arr) {
var exclusive = arr.filter(el => el[0] !== '_id' && !el[2])
var inclusive = arr.filter(el => el[2])
if(exclusive.length > 0 && inclusive.length > 0) {
error("Bad projection specification, cannot exclude fields other than '_id' in an inclusion projection: " + JSON.stringify(objOfArray(arr)), location())
}
return arr
}
// check that the list of required operators is present
function checkRequiredOperators(arr, reqs) {
var matches = arr.filter(el => reqs.includes(el[0]))
if(matches.length !== reqs.length) {
error("Missing required fields");
}
return arr
}
// check that a fieldPath starts with '$'
function checkIsFieldPath(s) {
if (s.charAt(0) !== '$') {
error("Field paths must begin with '$', field path was: " + s, location())
}
return s
}
// check that the field does not start with '$' or .
function checkIsNotFieldPath(s) {
if (s.charAt(0) !== '$' && s.charAt(0) !== '.') {
return s;
}
error("Field cannot begin with '$' or '.', field was: " + s, location())
}
function cleanBackSlashes(ch) {
if (ch instanceof Array) {
return ch.join("")
}
return ch
}
function checkNotOperator(s) {
if (s.charAt(0) === '$') {
error("Field must not begin with '$' or '.', field path was: " + s, location())
}
if(s.charAt(0) === '.') {
error("Field must not begin with '$' or '.', field path was: " + s, location())
}
return s;
}
}
// We can have just one stage in an aggregation, or we can have an actual pipeline (array)
start = st:stage
{
return st
}
/ pipeline
pipeline = "[" st:stage stArr:("," stage)* ","? "]"
{
return [st].concat(cleanAndFlatten(stArr))
}
// this is a dummy rule just so we don't need to write this same
// action for every stage
stage = sts:stage_syntax {
var obj = {}
obj[sts[1]] = sts[3]
return obj
}
stage_syntax "AggregationStage" =
"{" addFields ":" addFields_document "}"
/ "{" bucket ":" bucket_document "}"
/ "{" bucketAuto ":" bucketAuto_document "}"
/ "{" collStats ":" collStats_document "}"
/ "{" count ":" string "}"
/ "{" currentOp ":" currentOp_document "}"
/ "{" facet ":" facet_document "}"
/ "{" geoNear ":" geoNear_document "}"
/ "{" graphLookup ":" graphLookup_document "}"
/ "{" group ":" group_document "}"
/ "{" indexStats ":" indexStats_document "}"
/ "{" limit ":" positive_integer "}"
/ "{" listLocalSessions ":" listLocalSessions_document "}"
/ "{" listSessions ":" listLocalSessions_document "}"
/ "{" lookup ":" lookup_document "}"
/ "{" match ":" match_document "}"
/ "{" merge ":" merge_document "}"
/ "{" out ":" string "}"
/ "{" project ":" project_document "}"
/ "{" redact ":" redact_document "}"
/ "{" replaceRoot ":" replaceRoot_document "}"
/ "{" sample ":" sample_document "}"
/ "{" searchBeta ":" search_beta_document "}"
/ "{" skip ":" positive_integer "}"
/ "{" sort ":" sort_document "}"
/ "{" sortByCount ":" sortByCount_document "}"
/ "{" unwind ":" unwind_document "}"
addFields "$addFields" = '"$addFields"' { return '$addFields' } / "'$addFields'" { return '$addFields' } / "$addFields"
addFields_item = f:field ":" agg_expression
addFields_document = "{" a:addFields_item aArr:("," addFields_item)* ","? "}"
{
return objOfArray([a].concat(cleanAndFlatten(aArr)))
}
bucket "$bucket" = "$bucket" / "'$bucket'" { return '$bucket' } / '"$bucket"' { return '$bucket' }
groupBy "groupBy" = "groupBy" / "'groupBy'" { return 'groupBy' } / '"groupBy"' { return 'groupBy' }
boundaries "boundaries" = "boundaries" / "'boundaries'" { return 'boundaries' } / '"boundaries"' { return 'boundaries' }
default "default" = "default" / "'default'" { return 'default' } / '"default"' { return 'default' }
output "output" = "output" / "'output'" { return 'output' } / '"output"' { return 'output' }
output_item = f:field ":" "{" a:accumulator ":" e:agg_expression "}"
{
var obj = {}
obj[a] = e
return [f, ":", obj]
}
output_doc = "{" g:output_item gArr:("," output_item)* ","? "}"
{
return objOfArray([g].concat(cleanAndFlatten(gArr)))
}
bucket_item = groupBy ":" agg_expression
/ boundaries ":" a:agg_array
/ default ":" l:literal
/ output ":" output_doc
bucket_document ="{" g:bucket_item gArr:("," bucket_item)* ","? "}"
{
return objOfArray(checkRequiredOperators([g].concat(cleanAndFlatten(gArr)), ['groupBy', 'boundaries']))
}
bucketAuto "$bucketAuto" = "$bucketAuto" / "'$bucketAuto'" { return '$bucketAuto' } / '"$bucketAuto"' { return '$bucketAuto' }
buckets "buckets" = "buckets" / "'buckets'" { return 'buckets' } / '"buckets"' { return 'buckets' }
granularity "granularity" = "granularity" / "'granularity'" { return 'granularity' } / '"granularity"' { return 'granularity' }
bucketAuto_item = groupBy ":" agg_expression
/ output ":" output_doc
/ buckets ":" number
/ granularity ":" string
bucketAuto_document ="{" g:bucketAuto_item gArr:("," bucketAuto_item)* ","? "}"
{
return objOfArray(checkRequiredOperators([g].concat(cleanAndFlatten(gArr)), ['groupBy', 'buckets']))
}
collStats "$collStats" = "$collStats" / "'$collStats'" { return '$collStats' } / '"$collStats"' { return '$collStats' }
latencyStats "latencyStats" = "latencyStats" / "'latencyStats'" { return 'latencyStats' } / '"latencyStats"' { return 'latencyStats' }
storageStats "storageStats" = "storageStats" / "'storageStats'" { return 'storageStats' } / '"storageStats"' { return 'storageStats' }
histograms "histograms" = "histograms" / "'histograms'" { return 'histograms' } / '"histograms"' { return 'histograms' }
collStats_item = lt:latencyStats ":" "{" h:histograms ":" b:boolean "}"
{
var obj = {}
obj[h] = b
return [lt, ":", obj]
}
/ s:storageStats ":" "{" "}"
{
return [s, ":", {}]
}
/ c:( "count" / "'count'" { return 'count' } / '"count"' { return 'count' } ) ":" "{" "}"
{
return [c, ":", {}]
}
collStats_document = "{" "}"
{
return {}
}
/ "{" ci:collStats_item cArr:("," collStats_item)* ","? "}"
{
return objOfArray([ci].concat(cleanAndFlatten(cArr)))
}
count "$count" = '"$count"' { return '$count' } / "'$count'" { return '$count' } / "$count"
currentOp "$currentOp" = '"$currentOp"' { return '$currentOp' } / "'$currentOp'" { return '$currentOp' } / "$currentOp"
allUsers "allUsers" = "allUsers" / "'allUsers'" { return 'allUsers' } / '"allUsers"' { return 'allUsers' }
idleConnections "idleConnections" = "idleConnections" / "'idleConnections'" { return 'idleConnections' } / '"idleConnections"' { return 'idleConnections' }
currentOp_item = au:allUsers ":" b:boolean
{
return [au, ":", b]
}
/ ic:idleConnections ":" b:boolean
{
return [ic, ":", b]
}
currentOp_document = "{" "}"
{
return {}
}
/ "{" ci:currentOp_item cArr:("," currentOp_item)* ","? "}"
{
return objOfArray([ci].concat(cleanAndFlatten(cArr)))
}
facet "$facet" = "$facet" / "'$facet'" { return '$facet' } / '"$facet"' { return '$facet' }
facet_item = f:field ":" pipeline
facet_document = "{" a:facet_item aArr:("," facet_item)* ","? "}"
{
return objOfArray([a].concat(cleanAndFlatten(aArr)))
}
geoNear "$geoNear" = "$geoNear" / "'$geoNear'" { return '$geoNear' } / '"$geoNear"' { return '$geoNear' }
distanceField "distanceField" = "distanceField" / "'distanceField'" { return 'distanceField' } / '"distanceField"' { return 'distanceField' }
spherical "spherical" = "spherical" / "'spherical'" { return 'spherical' } / '"spherical"' { return 'spherical' }
geoKey "key" = "key" / "'key'" { return 'key' } / '"key"' { return 'key' }
geoLimit "limit" = "limit" / "'limit'" { return 'limit' } / '"limit"' { return 'limit' }
num "num" = "num" / "'num'" { return 'num' } / '"num"' { return 'num' }
query "query" = "query" / "'query'" { return 'query' } / '"query"' { return 'query' }
distanceMultiplier "distanceMultiplier" = "distanceMultiplier" / "'distanceMultiplier'" { return 'distanceMultiplier' } / '"distanceMultiplier"' { return 'distanceMultiplier' }
uniqueDocs "uniqueDocs" = "uniqueDocs" / "'uniqueDocs'" { return 'uniqueDocs' } / '"uniqueDocs"' { return 'uniqueDocs' }
includeLocs "includeLocs" = "includeLocs" / "'includeLocs'" { return 'includeLocs' } / '"includeLocs"' { return 'includeLocs' }
maxDistance "maxDistance" = "maxDistance" / "'maxDistance'" { return 'maxDistance' } / '"maxDistance"' { return 'maxDistance' }
minDistance "minDistance" = "minDistance" / "'minDistance'" { return 'minDistance' } / '"minDistance"' { return 'minDistance' }
type "type" = "type" / "'type'" { return 'type' } / '"type"' { return 'type' }
coordinates "coordinates" = "coordinates" / "'coordinates'" { return 'coordinates' } / '"coordinates"' { return 'coordinates' }
point "Point" = "'Point'" { return 'Point' } / '"Point"' { return 'Point' }
legacy_coordinates = "[" n1:number "," n2:number "]"
{ return [n1, n2] }
near_item = geoJSON_document / legacy_coordinates
geoJSON_item = t:type ":" point
/ c:coordinates ":" "[" n1:number "," n2:number "]"
{ return [c, ":", [n1, n2]] }
geoJSON_document = "{" j1:geoJSON_item "," j2:geoJSON_item "}"
{
return objOfArray(checkRequiredOperators([j1, j2], ['type', 'coordinates']))
}
geoNear_item = gn:near ":" gni:near_item
/ gdf:distanceField ":" s:string
/ gs:spherical ":" b:boolean
/ gk:geoKey ":" s:string
/ gl:geoLimit ":" i:positive_integer
/ gn:num ":" i:positive_integer
/ gmd:maxDistance ":" n:number
/ gq:query ":" m:query_expression
/ gdm:distanceMultiplier ":" n:number
/ gu:uniqueDocs ":" b:boolean
/ gi:includeLocs ":" s:string
/ gnd:minDistance ":" n:number
geoNear_document ="{" g:geoNear_item gArr:("," geoNear_item)* ","? "}"
{
return objOfArray(checkRequiredOperators([g].concat(cleanAndFlatten(gArr)), ['near', 'distanceField']))
}
graphLookup "$graphLookup" = '"$graphLookup"' { return '$graphLookup' } / "'$graphLookup'" { return '$graphLookup' } / "$graphLookup"
startWith "startWith" = '"startWith"' { return 'startWith' } / "'startWith'" { return 'startWith' } / "startWith"
connectFromField "connectFromField" = '"connectFromField"' { return 'connectFromField' } / "'connectFromField'" { return 'connectFromField' } / "connectFromField"
connectToField "connectToField" = '"connectToField"' { return 'connectToField' } / "'connectToField'" { return 'connectToField' } / "connectToField"
maxDepth "maxDepth" = '"maxDepth"' { return 'maxDepth' } / "'maxDepth'" { return 'maxDepth' } / "maxDepth"
depthField "depthField" = '"depthField"' { return 'depthField' } / "'depthField'" { return 'depthField' } / "depthField"
restrictSearchWithMatch "restrictSearchWithMatch" = '"restrictSearchWithMatch"' { return 'restrictSearchWithMatch' } / "'restrictSearchWithMatch'" { return 'restrictSearchWithMatch' } / "restrictSearchWithMatch"
connectToField_item = s:string / a:array
graphLookup_item = from ":" s:string
/ startWith ":" agg_expression
/ connectFromField ":" s:string
/ connectToField ":" connectToField_item
/ as ":" s:string
/ maxDepth ":" positive_integer
/ depthField ":" s:string
/ restrictSearchWithMatch ":" query_object
graphLookup_document = "{" g:graphLookup_item gArr:("," graphLookup_item)* ","? "}"
{
return objOfArray(checkRequiredOperators([g].concat(cleanAndFlatten(gArr)), ['from', 'startWith', 'connectFromField', 'connectToField', 'as']))
}
group "$group" = '"$group"' { return '$group' } / "'$group'" { return '$group' } / "$group"
group_item = id ":" agg_expression
/ f:field ":" "{" a:accumulator ":" e:agg_expression "}"
{
var obj = {}
obj[a] = e
return [f, ":", obj]
}
group_document = "{" g:group_item gArr:("," group_item)* ","? "}"
{
return objOfArray(checkRequiredOperators([g].concat(cleanAndFlatten(gArr)), ['_id']))
}
indexStats "$indexStats" = '"$indexStats"' { return '$indexStats' } / "'$indexStats'" { return '$indexStats' } / "$indexStats"
indexStats_document = "{""}"
{
return {}
}
limit "$limit" = '"$limit"' { return '$limit' } / "'$limit'" { return '$limit' } / "$limit"
listSessions "$listSessions" = '"$listSessions"' { return '$listSessions' } / "'$listSessions'" { return '$listSessions' } / "$listSessions"
listLocalSessions "$listLocalSessions" = '"$listLocalSessions"' { return '$listLocalSessions' } / "'$listLocalSessions'" { return '$listLocalSessions' } / "$listLocalSessions"
users "users" = '"users"' { return 'users' } / "'users'" { return 'users' } / "users"
user "user" = '"user"' { return 'user' } / "'user'" { return 'user' } / "user"
db "db" = '"db"' { return 'db' } / "'db'" { return 'db' } / "db"
users_item = u:user ":" s:string
/ d:db ":" s:string
users_document = "{" u1:users_item "," u2:users_item "}"
{
return objOfArray(checkRequiredOperators([u1, u2], ['user', 'db']))
}
users_array = "[" s:users_document sArr:("," users_document)* ","? "]"
{
return [s].concat(cleanAndFlatten(sArr))
}
listLocalSessions_document = "{" "}"
{
return {}
}
/ "{" a:allUsers ":" "true" "}"
{
const obj = {};
obj[a] = true;
return obj
}
/ "{" f:users ":" u:users_array "}"
{
const obj = {};
obj[f] = u;
return obj
}
lookup "$lookup" = '"$lookup"' { return '$lookup' } / "'$lookup'" { return '$lookup' } / "$lookup"
from "from" = '"from"' { return 'from' }
/ "'from'" { return 'from' }
/ "from"
localField "localField" = '"localField"' { return 'localField' }
/ "'localField'" { return 'localField' }
/ "localField"
foreignField "foreignField" = '"foreignField"' { return 'foreignField' }
/ "'foreignField'" { return 'foreignField' }
/ "foreignField"
as "as" = '"as"' { return 'as' }
/ "'as'" { return 'as' }
/ "as"
let_kw "let" = '"let"' { return 'let' }
/ "'let'" { return 'let' }
/ "let"
pipeline_kw "pipeline" = '"pipeline"' { return 'pipeline' }
/ "'pipeline'" { return 'pipeline' }
/ "pipeline"
lookup_item = from ":" string // TODO: perhaps check this is a valid collection
/ localField ":" string // For some reason this doesn't need a $
/ foreignField ":" string
/ as ":" string
/ let_kw ":" object
/ pipeline_kw ":" pipeline
lookup_document = "{" l:lookup_item lArr:("," lookup_item)* ","? "}"
{
return objOfArray([l].concat(cleanAndFlatten(lArr)))
}
search "$search" = '"$search"' { return '$search' }
/ "'$search'" { return '$search' }
/ "$search"
search_string "search" = '"search"' { return 'search' }
/ "'search'" { return 'search' }
/ "search"
index "index" = '"index"' { return 'index' }
/ "'index'" { return 'index' }
/ "index"
highlight "highlight" = '"highlight"' { return 'highlight' }
/ "'highlight'" { return 'highlight' }
/ "highlight"
compound "compound" = '"compound"' { return 'compound' }
/ "'compound'" { return 'compound' }
/ "compound"
span "span" = '"span"' { return 'span' }
/ "'span'" { return 'span' }
/ "span"
term "term" = '"term"' { return 'term' }
/ "'term'" { return 'term' }
/ "term"
exists_string "exists" = '"exists"' { return 'exists' }
/ "'exists'" { return 'exists' }
/ "exists"
search_beta_item = index ":" string
/ search_string ":" object
/ highlight ":" object
/ compound ":" object
/ span ":" object
/ term ":" object
/ exists_string ":" object
search_beta_document = "{" s:search_beta_item sArr:("," search_beta_item)* ","? "}"
{
return objOfArray([s].concat(cleanAndFlatten(sArr)))
}
searchBeta "$searchBeta" = '"$searchBeta"' { return '$searchBeta' }
/ "'$searchBeta'" { return '$searchBeta' }
/ "$searchBeta"
into "into" = '"into"' { return 'into' }
/ "'into'" { return 'into' }
/ "into"
on "on" = '"on"' { return 'on' }
/ "'on'" { return 'on' }
/ "on"
whenMatched "whenMatched" = '"whenMatched"' { return 'whenMatched' }
/ "'whenMatched'" { return 'whenMatched' }
/ "whenMatched"
whenNotMatched "whenNotMatched" = '"whenNotMatched"' { return 'whenNotMatched' }
/ "'whenNotMatched'" { return 'whenNotMatched' }
/ "whenNotMatched"
when_matched_item = object / string / pipeline
on_item = object / string / array
into_item = string / object
merge_item = into ":" into_item
/ on ":" on_item
/ let_kw ":" object
/ whenMatched ":" when_matched_item
/ whenNotMatched ":" string
merge_document = "{" m:merge_item mArr:("," merge_item)* ","? "}"
{
return objOfArray([m].concat(cleanAndFlatten(mArr)))
}
/ string
merge "$merge" = '"$merge"' { return '$merge' }
/ "'$merge'" { return '$merge' }
/ "$merge"
language "$language" = '"$language"' { return '$language' }
/ "'$language'" { return '$language' }
/ "$language"
case_sensitive "$caseSensitive" = '"$caseSensitive"' { return '$caseSensitive' }
/ "'$caseSensitive'" { return '$caseSensitive' }
/ "$caseSensitive"
diacritic_sensitive "$diacriticSensitive" = '"$diacriticSensitive"' { return '$diacriticSensitive' }
/ "'$diacriticSensitive'" { return '$diacriticSensitive' }
/ "$diacriticSensitive"
text_item = search ":" string
/ language ":" string
/ case_sensitive ":" boolean
/ diacritic_sensitive ":" boolean
text_document = "{" t:text_item tArr:("," text_item)* ","? "}"
{
return objOfArray([t].concat(cleanAndFlatten(tArr)))
}
// Match accepts only query operator syntax and document literals.
match "$match" = '"$match"' { return '$match' } / "'$match'" { return '$match' } / "$match"
match_item = and ":" query_array
/ or ":" query_array
/ expr ":" query_expression
/ text ":" text_document
/ comment ":" string_with_esc
/ field ":" query_expression
match_document = "{" "}"
{
return {}
}
/ "{" s:match_item sArr:("," match_item)* ","? "}"
{
return objOfArray([s].concat(cleanAndFlatten(sArr)))
}
out "out" = '"$out"' { return '$out' } / "'$out'" { return '$out' } / "$out"
project "$project"= '"$project"' { return '$project' } / "'$project'" { return '$project' } / "$project"
project_item = i:id ":" e:("0" / "false" / "1" / "true") { return [i, ':', toBool(e)] }
/ f:field ":" e:("0" / "false" / "1" / "true" / agg_expression) { return [f, ':', toBool(e)] }
// Project actually must have at least one item
project_document = "{" s:project_item sArr:("," project_item)* ","? "}"
{
return objOfArray(checkExclusivity([s].concat(cleanAndFlatten(sArr))))
}
redact "$redact" = '"$redact"' { return '$redact' } / "'$redact'" { return '$redact' } / "$redact"
KEEP "$$KEEP" = '"$$KEEP"' { return '$$KEEP' } / "'$$KEEP'" { return '$$KEEP' }
PRUNE "$$PRUNE" = '"$$PRUNE"' { return '$$PRUNE' } / "'$$PRUNE'" { return '$$PRUNE' }
DESCEND "$$DESCEND" = '"$$DESCEND"' { return '$$DESCEND' } / "'$$DESCEND'" { return '$$DESCEND' }
redact_document = agg_object / KEEP / PRUNE / DESCEND
replaceRoot "$replaceRoot" = '"$replaceRoot"' { return '$replaceRoot' } / "'$replaceRoot'" { return '$replaceRoot' } / "$replaceRoot"
newRoot "newRoot" = "newRoot" / "'newRoot'" { return 'newRoot' } / '"newRoot"' { return 'newRoot' }
replaceRoot_document ="{" n:newRoot ":" o:(agg_object / string) "}"
{
var obj = {}
obj[n] = o
return obj
}
sample "$sample" = '"$sample"' { return '$sample' } / "'$sample'" { return '$sample' } / "$sample"
size "size" = "size" / "'size'" { return 'size' } / '"size"' { return 'size' }
sample_document ="{" s:size ":" i:positive_integer"}"
{
var obj = {}
obj[s] = i
return obj
}
skip "$skip" = '"$skip"' { return '$skip' } / "'$skip'" { return '$skip' } / "$skip"
sort "$sort" = '"$sort"' { return '$sort' } / "'$sort'" { return '$sort' } / "$sort"
textScore "textScore" = "'textScore'" { return 'textScore' } / '"textScore"' { return 'textScore' }
sort_item = f:field ":" "-1" { return [f, ":", -1] }
/ f:field ":" "1" { return [f, ":", 1] }
/ f:field ":" "{" m:meta ":" t:textScore "}"
{
var obj = {}
obj[m] = t
return [f, ":", obj]
}
sort_document = "{" s:sort_item sArr:("," sort_item)* ","? "}"
{
return objOfArray([s].concat(cleanAndFlatten(sArr)))
}
sortByCount "$sortByCount" = '"$sortByCount"' { return '$sortByCount' } / "'$sortByCount'" { return '$sortByCount' } / "$sortByCount"
sbc_object_item = agg_operator ":" agg_expression
sbc_object "AggObject" = "{" oi:sbc_object_item oiArr:("," sbc_object_item)* ","? "}"
{
return objOfArray([oi].concat(cleanAndFlatten(oiArr)))
}
sortByCount_document = s:string { return checkIsFieldPath(s) } / sbc_object
unwind "$unwind"= '"$unwind"' { return '$unwind' } / "'$unwind'" { return '$unwind' } / "$unwind"
path 'path'
= '"path"' { return 'path' }
/ "'path'" { return 'path' }
/ "path"
includeArrayIndex 'includeArrayIndex'
= '"includeArrayIndex"' { return 'includeArrayIndex' }
/ "'includeArrayIndex'" { return 'includeArrayIndex' }
/ "includeArrayIndex"
preserveNullAndEmptyArrays 'preserveNullAndEmptyArrays'
= '"preserveNullAndEmptyArrays"' { return 'preserveNullAndEmptyArrays' }
/ "'preserveNullAndEmptyArrays'" { return 'preserveNullAndEmptyArrays' }
/ "preserveNullAndEmptyArrays"
unwind_item = p:path ":" s:string { return [p, ':', checkIsFieldPath(s)] }
/ ia:includeArrayIndex ":" s:string { return [ia, ':', checkIsNotFieldPath(s)] }
/ preserveNullAndEmptyArrays ":" boolean
unwind_document = s:string
{ return checkIsFieldPath(s) }
/ "{" u:unwind_item uArr:("," unwind_item)* ","? "}"
{
return objOfArray([u].concat(cleanAndFlatten(uArr)))
}
/////////////////
// EXPRESSIONS //
/////////////////
accumulator "AccumulatorOperator" = sum
/ avg
/ first
/ last
/ max
/ min
/ push
/ addToSet
/ stdDevPop
/ stdDevSamp
/ conv_op
/ str_op
/ mergeObjects
sum "$sum" = "$sum" / "'$sum'" { return '$sum' } / '"$sum"' { return '$sum' }
avg "$avg" = "$avg" / "'$avg'" { return '$avg' } / '"$avg"' { return '$avg' }
first "$first" = "$first" / "'$first'" { return '$first' } / '"$first"' { return '$first' }
last "$last" = "$last" / "'$last'" { return '$last' } / '"$last"' { return '$last' }
max "$max" = (!"$maxDistance" "$max") / (!"'$maxDistance'" "'$max'") { return '$max' } / (!'"$maxDistance"' '"$max"') { return '$max' }
min "$min" = (!"$minute" !"$minDistance" "$min") / (!"'$minute'" !"'$minDistance'" "'$min'") { return '$min' } / (!'"$minute"' !'"$minDistance"' '"$min"') { return '$min' }
push "$push" = "$push" / "'$push'" { return '$push' } / '"$push"' { return '$push' }
addToSet "$addToSet" = "$addToSet" / "'$addToSet'" { return '$addToSet' } / '"$addToSet"' { return '$addToSet' }
stdDevPop "$stdDevPop" = "$stdDevPop" / "'$stdDevPop'" { return '$stdDevPop' } / '"$stdDevPop"' { return '$stdDevPop' }
stdDevSamp "$stdDevSamp" = "$stdDevSamp" / "'$stdDevSamp'" { return '$stdDevSamp'} / '"$stdDevSamp"'{ return '$stdDevSamp'}
query_operator "QueryOperator" = comp_op
/ log_op
/ element_op
/ eval_op
/ geo_op
/ array_op
/ bit_op
/ comment
/ project_op
/ field
/ conv_op
/ str_op
str_op = ltrim / rtrim / trim
conv_op = convert / toBool / toDate / toDecimal / toDouble / toInt / toLong / toObjectId / toString / objectToArray
comp_op = eq / gte / gt / in / lte / lt / ne / nin / cond
log_op = and / not / nor / or
element_op = exists / typeOp
eval_op = expr / jsonSchema / mod / regex / text / where
geo_op = geoIntersects / geoWithin / nearSphere / nearOp / minDistanceOp / maxDistanceOp / geometry
array_op = all / elemMatch / sizeOp
bit_op = bitsAllClear / bitsAllSet / bitsAnyClear / bitsAnySet
project_op = elemMatch / meta / slice
convert "$convert" = "$convert" / "'$convert'" { return '$convert' } / '"$convert"' { return '$convert'}
toBool "$toBool" = "$toBool" / "'$toBool'" { return '$toBool' } / '"$toBool"' { return '$toBool' }
toDate "$toDate" = "$toDate" / "'$toDate'" { return '$toDate' } / '"$toDate"' { return '$toDate' }
toDecimal "$toDecimal" = "$toDecimal" / "'$toDecimal'" { return '$toDecimal' } / '"$toDecimal"' { return '$toDecimal' }
toDouble "$toDouble" = "$toDouble" / "'$toDouble'" { return '$toDouble' } / '"$toDouble"' { return '$toDouble' }
toInt "$toInt" = "$toInt" / "'$toInt'" { return '$toInt' } / '"$toInt"' { return '$toInt' }
toLong "$toLong" = "$toLong" / "'$toLong'" { return '$toLong' } / '"$toLong"' { return '$toLong' }
toObjectId "$toObjectId" = "$toObjectId" / "'$toObjectId'" { return '$toObjectId' } / '"$toObjectId"' { return '$toObjectId' }
toString "$toString" = "$toString" / "'$toString'" { return '$toString' } / '"$toString"' { return '$toString' }
lte "$lte" = "$lte" / "'$lte'" { return '$lte' } / '"$lte"' { return '$lte' }
gte "$gte" = "$gte" / "'$gte'" { return '$gte' } / '"$gte"' { return '$gte' }
eq "$eq" = "$eq" / "'$eq'" { return '$eq' } / '"$eq"' { return '$eq' }
gt "$gt" = "$gt" / "'$gt'" { return '$gt' } / '"$gt"' { return '$gt' }
in "$in" = (!"$index" "$in") / (!"'$index" "'$in'") { return '$in' } / (!'"$index' '"$in"') { return '$in' }
lt "$lt" = "$lt" / "'$lt'" { return '$lt' } / '"$lt"' { return '$lt' }
nin "$nin" = "$nin" / "'$nin'" { return '$nin' } / '"$nin"' { return '$nin' }
and "$and" = "$and" / "'$and'" { return '$and' } / '"$and"' { return '$and' }
or "$or" = "$or" / "'$or'" { return '$or' } / '"$or"' { return '$or' }
not "$not" = "$not" / "'$not'" { return '$not' } / '"$not"' { return '$not' }
nor "$nor" = "$nor" / "'$nor'" { return '$nor' } / '"$nor"' { return '$nor' }
exists "$exists" = "$exists" / "'$exists'" { return '$exists' } / '"$exists"' { return '$exists' }
typeOp "$type" = "$type" / "'$type'" { return '$type' } / '"$type"' { return '$type' }
expr "$expr" = "$expr" / "'$expr'" { return '$expr' } / '"$expr"' { return '$expr' }
mod "$mod" = "$mod" / "'$mod'" { return '$mod' } / '"$mod"' { return '$mod' }
regex "$regex" = "$regex" / "'$regex'" { return '$regex' } / '"$regex"' { return '$regex' }
text "$text" = "$text" / "'$text'" { return '$text' } / '"$text"' { return '$text' }
where "$where" = "$where" / "'$where'" { return '$where' } / '"$where"' { return '$where' }
all "$all" = (!"$allElementsTrue" "$all") / (!"'$allElementsTrue" "'$all'") { return '$all' } / (!'"$allElementsTrue' '"$all"') { return '$all' }
meta "$meta" = "$meta" / "'$meta'" { return '$meta' } / '"$meta"' { return '$meta' }
slice "$slice" = "$slice" / "'$slice'" { return '$slice' } / '"$slice"' { return '$slice' }
comment "$comment" = "$comment" / "'$comment'" { return '$comment' } / '"$comment"' { return '$comment' }
jsonSchema "$jsonSchema" = "$jsonSchema" / "'$jsonSchema'" { return '$jsonSchema' } / '"$jsonSchema"' { return '$jsonSchema' }
elemMatch "$elemMatch" = "$elemMatch" / "'$elemMatch'" { return '$elemMatch' } / '"$elemMatch"' { return '$elemMatch' }
geoIntersects "$geoIntersects" = "$geoIntersects" / "'$geoIntersects'" { return '$geoIntersects' } / '"$geoIntersects"' { return '$geoIntersects' }
geoWithin "$geoWithin" = "$geoWithin" / "'$geoWithin'" { return '$geoWithin' } / '"$geoWithin"' { return '$geoWithin' }
geometry "$geometry" = "$geometry" / "'$geometry'" { return '$geometry' } / '"$geometry"' { return '$geometry' }
minDistanceOp "$minDistance" = "$minDistance" / "'$minDistance'" { return '$minDistance' } / '"$minDistance"' { return '$minDistance' }
maxDistanceOp "$maxDistance" = "$maxDistance" / "'$maxDistance'" { return '$maxDistance' } / '"$maxDistance"' { return '$maxDistance' }
bitsAllSet "$bitsAllSet" = "$bitsAllSet" / "'$bitsAllSet'" { return '$bitsAllSet' } / '"$bitsAllSet"' { return '$bitsAllSet' }
bitsAnySet "$bitsAnySet" = "$bitsAnySet" / "'$bitsAnySet'" { return '$bitsAnySet' } / '"$bitsAnySet"' { return '$bitsAnySet' }
bitsAllClear "$bitsAllClear" = "$bitsAllClear" / "'$bitsAllClear'" { return '$bitsAllClear' } / '"$bitsAllClear"' { return '$bitsAllClear' }
bitsAnyClear "$bitsAnyClear" = "$bitsAnyClear" / "'$bitsAnyClear'" { return '$bitsAnyClear' } / '"$bitsAnyClear"' { return '$bitsAnyClear' }
/* Mess */
nearSphere "$nearSphere" = "$nearSphere" / "'$nearSphere'" { return '$nearSphere' } / '"$nearSphere"' { return '$nearSphere' }
nearOp "$near" = (!"$nearSphere" "$near") / (!"nearSphere" "'$near'") { return '$near' } / (!'"$nearSphere"' '"$near"') { return '$near' }
ne "$ne" = (!"$near" "$ne") / (!"'$near" "'$ne'") { return '$ne' } / (!'"$near' '"$ne"') { return '$ne' }
near "near" = !"$near" !"$nearSphere" n:"near" { return n } / !"'$near'" !"'$nearSphere'" "'near'" { return 'near' } / !'"$near"' !'"$nearSphere"' '"near"' { return 'near' }
sizeOp "$size" = "$size" / "'$size'" { return '$size' } / '"$size"' { return '$size' }
agg_operator "AggregationOperator" = accumulator
/ and / eq / gte / gt / lte / lt / in / meta / mod / ne / not / or
/ sizeOp / slice / typeOp / abs / add / allElementsTrue / anyElementTrue
/ arrayElemAt / arrayToObject / ceil / cmp / concatArrays / concat / cond
/ dateFromParts / dateFromString / dateToString / dateToParts
/ dayOfMonth / dayOfWeek / dayOfYear / divide / exp / filter
/ floor / hour / ifNull / indexOfBytes / indexOfCP / indexOfArray
/ isArray / isoDayOfWeek / isoWeekYear / isoWeek / let / literalOp
/ ln / log10 / log / map / mergeObjects / millisecond / minute
/ month / multiply / objectToArray / pow / range / reduce
/ reverseArray / second / setDifference / setEquals / setIntersection
/ setIsSubset / setUnion / split / sqrt / strcasecmp / strLenBytes
/ strLenCP / substrBytes / substrCP / substr / subtract / switch
/ toLower / toUpper / trunc / week / year / zip / accumulator
/ ltrim / rtrim / trim
ltrim "$ltrim" = "$ltrim" / "'$ltrim'" { return '$ltrim' } / '"$ltrim"' { return '$ltrim' }
rtrim "$rtrim" = "$rtrim" / "'$rtrim'" { return '$rtrim' } / '"$rtrim"' { return '$rtrim' }
trim "$trim" = "$trim" / "'$trim'" { return '$trim' } / '"$trim"' { return '$trim' }
abs "$abs" = "$abs" / "'$abs'" { return '$abs' } / '"$abs"' { return '$abs' }
add "$add" = (!"$addToField" !"addToSet" "$add") / (!"'$addTofield'" !"'$addToSet'" "'$add'") { return '$add' } / (!'"$addToField"' !'"$addToSet"' '"$add"') { return '$add' }
allElementsTrue "$allElementsTrue" = "$allElementsTrue" / "'$allElementsTrue'" { return '$allElementsTrue' } / '"$allElementsTrue"' { return '$allElementsTrue' }
anyElementTrue "$anyElementTrue" = "$anyElementTrue" / "'$anyElementTrue'" { return '$anyElementTrue' } / '"$anyElementTrue"' { return '$anyElementTrue' }
arrayElemAt "$arrayElemAt" = "$arrayElemAt" / "'$arrayElemAt'" { return '$arrayElemAt' } / '"$arrayElemAt"' { return '$arrayElemAt' }
arrayToObject "$arrayToObject" = "$arrayToObject" / "'$arrayToObject'" { return '$arrayToObject' } / '"$arrayToObject"' { return '$arrayToObject' }
ceil "$ceil" = "$ceil" / "'$ceil'" { return '$ceil' } / '"$ceil"' { return '$ceil' }
cmp "$cmp" = "$cmp" / "'$cmp'" { return '$cmp' } / '"$cmp"' { return '$cmp' }
concatArrays "$concatArrays" = "$concatArrays" / "'$concatArrays'" { return '$concatArrays' } / '"$concatArrays"' { return '$concatArrays' }
concat "$concat" = (!"$concatArrays" "$concat") / (!"'$concatArrays'" "'$concat'") { return '$concat' } / (!'"$concatArrays"' '"$concat"') { return '$concat' }
cond "$cond" = "$cond" / "'$cond'" { return '$cond' } / '"$cond"' { return '$cond' }
dateFromParts "$dateFromParts" = "$dateFromParts" / "'$dateFromParts'" { return '$dateFromParts' } / '"$dateFromParts"' { return '$dateFromParts' }
dateFromString "$dateFromString" = "$dateFromString" / "'$dateFromString'" { return '$dateFromString' } / '"$dateFromString"' { return '$dateFromString' }
dateToString "$dateToString" = "$dateToString" / "'$dateToString'" { return '$dateToString' } / '"$dateToString"' { return '$dateToString' }
dateToParts "$dateToParts" = "$dateToParts" / "'$dateToParts'" { return '$dateToParts' } / '"$dateToParts"' { return '$dateToParts' }
dayOfMonth "$dayOfMonth" = "$dayOfMonth" / "'$dayOfMonth'" { return '$dayOfMonth' } / '"$dayOfMonth"' { return '$dayOfMonth' }
dayOfWeek "$dayOfWeek" = "$dayOfWeek" / "'$dayOfWeek'" { return '$dayOfWeek' } / '"$dayOfWeek"' { return '$dayOfWeek' }
dayOfYear "$dayOfYear" = "$dayOfYear" / "'$dayOfYear'" { return '$dayOfYear' } / '"$dayOfYear"' { return '$dayOfYear' }
divide "$divide" = "$divide" / "'$divide'" { return '$divide' } / '"$divide"' { return '$divide' }
exp "$exp" = (!"$expr" "$exp") / (!"'$expr'" "'$exp'") { return '$exp' } / (!'"$expr"' '"$exp"') { return '$exp' }
filter "$filter" = "$filter" / "'$filter'" { return '$filter' } / '"$filter"' { return '$filter' }
floor "$floor" = "$floor" / "'$floor'" { return '$floor' } / '"$floor"' { return '$floor' }
hour "$hour" = "$hour" / "'$hour'" { return '$hour' } / '"$hour"' { return '$hour' }
ifNull "$ifNull" = "$ifNull" / "'$ifNull'" { return '$ifNull' } / '"$ifNull"' { return '$ifNull' }
indexOfArray "$indexOfArray" = "$indexOfArray" / "'$indexOfArray'" { return '$indexOfArray' } / '"$indexOfArray"' { return '$indexOfArray' }
indexOfBytes "$indexOfBytes" = "$indexOfBytes" / "'$indexOfBytes'" { return '$indexOfBytes' } / '"$indexOfBytes"' { return '$indexOfBytes' }
indexOfCP "$indexOfCP" = "$indexOfCP" / "'$indexOfCP'" { return '$indexOfCP' } / '"$indexOfCP"' { return '$indexOfCP' }
isArray "$isArray" = "$isArray" / "'$isArray'" { return '$isArray' } / '"$isArray"' { return '$isArray' }
isoDayOfWeek "$isoDayOfWeek" = "$isoDayOfWeek" / "'$isoDayOfWeek'" { return '$isoDayOfWeek' } / '"$isoDayOfWeek"' { return '$isoDayOfWeek' }
isoWeekYear "$isoWeekYear" = "$isoWeekYear" / "'$isoWeekYear'" { return '$isoWeekYear' } / '"$isoWeekYear"' { return '$isoWeekYear' }
isoWeek "$isoWeek" = (!"isoWeekYear" "$isoWeek") / (!"'isoWeekYear'" "'$isoWeek'") { return '$isoWeek' } / (!'"$isoWeekYear"' '"$isoWeek"') { return '$isoWeek' }
let "$let" = "$let" / "'$let'" { return '$let' } / '"$let"' { return '$let' }
literalOp "$literal" = "$literal" / "'$literal'" { return '$literal' } / '"$literal"' { return '$literal' }
ln "$ln" = "$ln" / "'$ln'" { return '$ln' } / '"$ln"' { return '$ln' }
log10 "$log10" = "$log10" / "'$log10'" { return '$log10' } / '"$log10"' { return '$log10' }
log "$log" = (!"$log10" "$log") / (!"'$log10'" "'$log'") { return '$log' } / (!'"$log10"' '"$log"') { return '$log' }
map "$map" = "$map" / "'$map'" { return '$map' } / '"$map"' { return '$map' }
mergeObjects "$mergeObjects" = "$mergeObjects" / "'$mergeObjects'" { return '$mergeObjects' } / '"$mergeObjects"' { return '$mergeObjects' }
millisecond "$millisecond" = "$millisecond" / "'$millisecond'" { return '$millisecond' } / '"$millisecond"' { return '$millisecond' }
minute "$minute" = "$minute" / "'$minute'" { return '$minute' } / '"$minute"' { return '$minute' }
month "$month" = "$month" / "'$month'" { return '$month' } / '"$month"' { return '$month' }
multiply "$multiply" = "$multiply" / "'$multiply'" { return '$multiply' } / '"$multiply"' { return '$multiply' }
objectToArray "$objectToArray" = "$objectToArray" / "'$objectToArray'" { return '$objectToArray' } / '"$objectToArray"' { return '$objectToArray' }
pow "$pow" = "$pow" / "'$pow'" { return '$pow' } / '"$pow"' { return '$pow' }
range "$range" = "$range" / "'$range'" { return '$range' } / '"$range"' { return '$range' }
reduce "$reduce" = "$reduce" / "'$reduce'" { return '$reduce' } / '"$reduce"' { return '$reduce' }
reverseArray "$reverseArray" = "$reverseArray" / "'$reverseArray'" { return '$reverseArray' } / '"$reverseArray"' { return '$reverseArray' }
second "$second" = "$second" / "'$second'" { return '$second' } / '"$second"' { return '$second' }
setDifference "$setDifference" = "$setDifference" / "'$setDifference'" { return '$setDifference' } / '"$setDifference"' { return '$setDifference' }
setEquals "$setEquals" = "$setEquals" / "'$setEquals'" { return '$setEquals' } / '"$setEquals"' { return '$setEquals' }
setIntersection "$setIntersection" = "$setIntersection" / "'$setIntersection'" { return '$setIntersection' } / '"$setIntersection"' { return '$setIntersection' }
setIsSubset "$setIsSubset" = "$setIsSubset" / "'$setIsSubset'" { return '$setIsSubset' } / '"$setIsSubset"' { return '$setIsSubset' }
setUnion "$setUnion" = "$setUnion" / "'$setUnion'" { return '$setUnion' } / '"$setUnion"' { return '$setUnion' }
split "$split" = "$split" / "'$split'" { return '$split' } / '"$split"' { return '$split' }
sqrt "$sqrt" = "$sqrt" / "'$sqrt'" { return '$sqrt' } / '"$sqrt"' { return '$sqrt' }
strcasecmp "$strcasecmp" = "$strcasecmp" / "'$strcasecmp'" { return '$strcasecmp' } / '"$strcasecmp"' { return '$strcasecmp' }
strLenBytes "$strLenBytes" = "$strLenBytes" / "'$strLenBytes'" { return '$strLenBytes' } / '"$strLenBytes"' { return '$strLenBytes' }
strLenCP "$strLenCP" = "$strLenCP" / "'$strLenCP'" { return '$strLenCP' } / '"$strLenCP"' { return '$strLenCP' }
substrBytes "$substrBytes" = "$substrBytes" / "'$substrBytes'" { return '$substrBytes' } / '"$substrBytes"' { return '$substrBytes' }
substrCP "$substrCP" = "$substrCP" / "'$substrCP'" { return '$substrCP' } / '"$substrCP"' { return '$substrCP' }
substr "$substr" = "$substr" / "'$substr'" { return '$substr' } / '"$substr"' { return '$substr' }
subtract "$subtract" = "$subtract" / "'$subtract'" { return '$subtract' } / '"$subtract"' { return '$subtract' }
switch "$switch" = "$switch" / "'$switch'" { return '$switch' } / '"$switch"' { return '$switch' }
toLower "$toLower" = "$toLower" / "'$toLower'" { return '$toLower' } / '"$toLower"' { return '$toLower' }
toUpper "$toUpper" = "$toUpper" / "'$toUpper'" { return '$toUpper' } / '"$toUpper"' { return '$toUpper' }
trunc "$trunc" = "$trunc" / "'$trunc'" { return '$trunc' } / '"$trunc"' { return '$trunc' }
week "$week" = "$week" / "'$week'" { return '$week' } / '"$week"' { return '$week' }
year "$year" = "$year" / "'$year'" { return '$year' } / '"$year"' { return '$year' }
zip "$zip" = "$zip" / "'$zip'" { return '$zip' } / '"$zip"' { return '$zip' }
// A few contexts allow only id. Note that a context requiring id must come before field
// in alternatives because field will also match id. PEGs process alternatives in left to right
// order, unlike context-free grammars, so this works.
id "_id" = '_id' / "'_id'" { return '_id' } / '"_id"' { return '_id' }
// (though these could just be checked in AST) let/map/functions/etc
expression = bson_types / number / string / boolean / null / array / object / regex_literal
// Expression that can include query operators
query_expression = query_object / query_array / expression / agg_array
// Expression that can include aggregation operators
agg_expression = agg_object / agg_array / expression
// This is odd, but there's no other good way to allow for the optional trailing comma
/* Document literals */
array "Array" = "[""]"
{ return [] }
/ "[" e:expression eArr:("," expression)* ","? "]"
{ return [e].concat(cleanAndFlatten(eArr)) }
object "Object" = "{""}"
{ return {} }
/ "{" oi:object_item oiArr:("," object_item)* ","? "}"
{
return objOfArray([oi].concat(cleanAndFlatten(oiArr)))
}
object_item = f:field ":" e:expression
/* Any query expression */
query_object_item = query_operator ":" query_expression
query_array "QueryArrayExpr" = "[""]"
{ return [] }
/ "[" e:query_expression eArr:("," query_expression)* ","? "]"
{
return [e].concat(cleanAndFlatten(eArr))
}
/ "[" e:expression eArr:("," expression)* ","? "]"
{
return [e].concat(cleanAndFlatten(eArr))
}
query_object "QueryObjectExpr" = "{""}"
{ return {} }
/ "{" oi:query_object_item oiArr:("," query_object_item)* ","? "}"
{
return objOfArray([oi].concat(cleanAndFlatten(oiArr)))
}
/ "{" oi:object_item oiArr:("," object_item)* ","? "}"
{
return objOfArray([oi].concat(cleanAndFlatten(oiArr)))
}
/* Any aggregation expression */
agg_field = agg_operator / field
agg_object_item = agg_field ":" agg_expression
agg_array "AggregationArrayExpr" = "[""]"
{ return [] }
/ "[" e:agg_expression eArr:("," agg_expression)* ","? "]"
{
return [e].concat(cleanAndFlatten(eArr))
}
/ "[" e:expression eArr:("," expression)* ","? "]"
{
return [e].concat(cleanAndFlatten(eArr))
}
agg_object "AggregationObjectExpr" = "{""}"
{ return {} }
/ "{" oi:agg_object_item oiArr:("," agg_object_item)* ","? "}"
{
return objOfArray([oi].concat(cleanAndFlatten(oiArr)))
}
/ "{" oi:object_item oiArr:("," object_item)* ","? "}"
{
return objOfArray([oi].concat(cleanAndFlatten(oiArr)))
}
// Any non standard character needs to be in quotes for a fieldname
field "Field Name"
= _ f:[_A-Za-z0-9] s:([_A-Za-z0-9 \\ .]*) { return f + s.join("") }
/ string_with_esc
///////////////////
// EXTENDED JSON //
///////////////////
// https://github.com/pegjs/pegjs/issues/517
bson_types = code
/ oid
/ binary
/ bindata
/ dbref
/ timestamp
/ numberlong
/ numberdecimal
/ numberint
/ maxkey
/ minkey
/ date
/ uuid
/ isodate
/ regexp
/ undefined
code "Code" = "Code" s:anything { return 'Code(' + s + ')' }
oid "ObjectId" = "ObjectId(" e:objectid_value ")" { return 'ObjectId(' + e + ')' }
binary "Binary" = "Binary(" e:binary_value ")" { return 'Binary(' + e + ')' }
bindata "BinData" = "BinData(" e:bindata_value ")" { return 'BinData(' + e + ')' }
dbref "DBRef" = "DBRef" e:anything { return 'DBRef(' + e + ')' }
timestamp "Timestamp" = "Timestamp(" e:timestamp_value ")" { return 'Timestamp(' + e + ')' }
numberlong "NumberLong" = "NumberLong(" e:integer_value ")" { return 'NumberLong(' + e + ')' }
numberdecimal "NumberDecimal" = "NumberDecimal(" e:decimal_value ")" { return 'NumberDecimal(' + e + ')' }
numberint "NumberInt" = "NumberInt(" e:integer_value ")" { return 'NumberInt(' + e + ')' }
maxkey "MaxKey" = "MaxKey()" { return 'MaxKey()' }
minkey "MinKey" = "MinKey()" { return 'MinKey()' }
date "Date" = "Date(" e:string ")" { return 'Date(' + e + ')' }
uuid "UUID" = "UUID(" e:string ")" { return 'UUID(' + e + ')' }
isodate "ISODate" = "ISODate(" e:string ")" { return 'ISODate(' + e + ')' }
regexp "RegExp" = "RegExp" e:anything { return 'RegExp(' + e + ')' }
undefined "Undefined" = "Undefined()" { return 'Undefined()' }
//////////////
// LITERALS //
//////////////
decimal_value
= number
/ "'" number "'"
/ '"' number '"'
integer_value
= integer
/ "'" integer "'"
/ '"' integer '"'
timestamp_value
= timestamp_arg "," timestamp_arg
/ ""
timestamp_arg
= integer
/ numberlong
/ numberint
objectid_value
= string_with_esc
binary_value
= string_with_esc "," integer_value
bindata_value
= integer_value "," string_with_esc
regexp_value
= string_with_esc ", " string_with_esc
/ string_with_esc
string_with_esc
= '"' chars:DoubleStringCharacter* '"' { return checkNotOperator(chars.join('')); }
/ "'" chars:SingleStringCharacter* "'" { return checkNotOperator(chars.join('')); }
DoubleStringCharacter
= !('"' / "\\") char:. { return char; }
/ "\\" sequence:EscapeSequence { return sequence; }
SingleStringCharacter
= !("'" / "\\") char:. { return char; }
/ "\\" sequence:EscapeSequence { return sequence; }
EscapeSequence
= "'"
/ '"'
/ "\\"
/ "b" { return "\b"; }
/ "f" { return "\f"; }
/ "n" { return "\n"; }
/ "r" { return "\r"; }
/ "t" { return "\t"; }
/ "v" { return "\x0B"; }
string "String"
= '"' chars:DoubleStringCharacter* '"' { return chars.join(''); }
/ "'" chars:SingleStringCharacter* "'" { return chars.join(''); }
anything
= "(" text:TextUntilTerminator ")" { return text.join(""); }
TextUntilTerminator
= x:(&HaveTerminatorAhead .)* { return x.map(y => y[1]) }
HaveTerminatorAhead
= . (!")" .)* ")"
// Float must come before integer or integer will be matched when floats occur
number "Number" = sign:"-"? digits:[0-9]+ '.' fraction:[0-9]* { return parseFloat(digits.join("") + '.' + fraction.join("")) * (sign === '-' ? -1 : 1) }
/ integer
/ nan
/ infinity
nan "NaN" = "NaN"
infinity "Infinity" = "Infinity" / "-Infinity"
integer "Integer" = positive_integer / "-" i:positive_integer { return -1 * i }
positive_integer "Positive Integer"
= digits:[0-9]+ { return parseInt(digits.join(""), 10) }
boolean "Boolean"
= "true" { return true} / "false" { return false}
null = "null" { return null}
regex_literal "Regex Literal"