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parser.js
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parser.js
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module.exports = (function() {
"use strict";
/*
* Generated by PEG.js 0.9.0.
*
* http://pegjs.org/
*/
function peg$subclass(child, parent) {
function ctor() { this.constructor = child; }
ctor.prototype = parent.prototype;
child.prototype = new ctor();
}
function peg$SyntaxError(message, expected, found, location) {
this.message = message;
this.expected = expected;
this.found = found;
this.location = location;
this.name = "SyntaxError";
if (typeof Error.captureStackTrace === "function") {
Error.captureStackTrace(this, peg$SyntaxError);
}
}
peg$subclass(peg$SyntaxError, Error);
function peg$parse(input) {
var options = arguments.length > 1 ? arguments[1] : {},
parser = this,
peg$FAILED = {},
peg$startRuleIndices = { start: 0 },
peg$startRuleIndex = 0,
peg$consts = [
function(x) { return x },
"in bbox",
{ type: "literal", value: "in bbox", description: "\"in bbox\"" },
"IN BBOX",
{ type: "literal", value: "IN BBOX", description: "\"IN BBOX\"" },
function(x) { return { bounds:"bbox", query:x } },
"in",
{ type: "literal", value: "in", description: "\"in\"" },
"IN",
{ type: "literal", value: "IN", description: "\"IN\"" },
function(x, y) { return { bounds:"area", query:x, area:y } },
"around",
{ type: "literal", value: "around", description: "\"around\"" },
"AROUND",
{ type: "literal", value: "AROUND", description: "\"AROUND\"" },
function(x, y) { return { bounds:"around", query:x, area:y } },
"global",
{ type: "literal", value: "global", description: "\"global\"" },
"GLOBAL",
{ type: "literal", value: "GLOBAL", description: "\"GLOBAL\"" },
function(x) { return { bounds:"global", query:x } },
"or",
{ type: "literal", value: "or", description: "\"or\"" },
"OR",
{ type: "literal", value: "OR", description: "\"OR\"" },
"||",
{ type: "literal", value: "||", description: "\"||\"" },
"|",
{ type: "literal", value: "|", description: "\"|\"" },
function(x, y) { return { logical:"or", queries:[x,y] } },
"and",
{ type: "literal", value: "and", description: "\"and\"" },
"AND",
{ type: "literal", value: "AND", description: "\"AND\"" },
"&&",
{ type: "literal", value: "&&", description: "\"&&\"" },
"&",
{ type: "literal", value: "&", description: "\"&\"" },
function(x, y) { return { logical:"and", queries:[x,y] } },
"(",
{ type: "literal", value: "(", description: "\"(\"" },
")",
{ type: "literal", value: ")", description: "\")\"" },
function(x) { return x; },
"=",
{ type: "literal", value: "=", description: "\"=\"" },
"==",
{ type: "literal", value: "==", description: "\"==\"" },
function(x, y) { return { query:"eq", key:x, val:y } },
"!=",
{ type: "literal", value: "!=", description: "\"!=\"" },
"<>",
{ type: "literal", value: "<>", description: "\"<>\"" },
function(x, y) { return { query:"neq", key:x, val:y } },
"*",
{ type: "literal", value: "*", description: "\"*\"" },
function(x) { return { query:"key", key:x } },
"is",
{ type: "literal", value: "is", description: "\"is\"" },
"not",
{ type: "literal", value: "not", description: "\"not\"" },
"null",
{ type: "literal", value: "null", description: "\"null\"" },
"IS",
{ type: "literal", value: "IS", description: "\"IS\"" },
"NOT",
{ type: "literal", value: "NOT", description: "\"NOT\"" },
"NULL",
{ type: "literal", value: "NULL", description: "\"NULL\"" },
function(x) { return { query:"nokey", key:x } },
"~=",
{ type: "literal", value: "~=", description: "\"~=\"" },
"~",
{ type: "literal", value: "~", description: "\"~\"" },
"=~",
{ type: "literal", value: "=~", description: "\"=~\"" },
function(x, y) { return { query:"like", key:x, val:y.regex?y:{regex:y} } },
"like",
{ type: "literal", value: "like", description: "\"like\"" },
"LIKE",
{ type: "literal", value: "LIKE", description: "\"LIKE\"" },
function(x, y) { return { query:"likelike", key:x, val:y.regex?y:{regex:y} } },
"!~",
{ type: "literal", value: "!~", description: "\"!~\"" },
function(x, y) { return { query:"notlike", key:x, val:y.regex?y:{regex:y} } },
":",
{ type: "literal", value: ":", description: "\":\"" },
function(x, y) { return { query:"substr", key:x, val:y } },
"type",
{ type: "literal", value: "type", description: "\"type\"" },
function(x) { return { query:"type", type:x } },
"user",
{ type: "literal", value: "user", description: "\"user\"" },
"uid",
{ type: "literal", value: "uid", description: "\"uid\"" },
"newer",
{ type: "literal", value: "newer", description: "\"newer\"" },
"id",
{ type: "literal", value: "id", description: "\"id\"" },
function(x, y) { return { query:"meta", meta:x, val:y } },
function(x) { return { query:"free form", free:x } },
{ type: "other", description: "Key" },
/^[a-zA-Z0-9_:\-]/,
{ type: "class", value: "[a-zA-Z0-9_:-]", description: "[a-zA-Z0-9_:-]" },
function(s) { return s.join(''); },
"\"",
{ type: "literal", value: "\"", description: "\"\\\"\"" },
"'",
{ type: "literal", value: "'", description: "\"'\"" },
function(parts) {
return parts[1];
},
{ type: "other", description: "string" },
/^[^'" ()~=!*\/:<>&|[\]{}#+@$%?\^.,]/,
{ type: "class", value: "[^'\" ()~=!*/:<>&|[\\]{}#+@$%?^.,]", description: "[^'\" ()~=!*/:<>&|[\\]{}#+@$%?^.,]" },
function(chars) { return chars.join(""); },
"\\",
{ type: "literal", value: "\\", description: "\"\\\\\"" },
{ type: "any", description: "any character" },
function(char_) { return char_; },
function(sequence) { return sequence; },
/^['"\\bfnrtv]/,
{ type: "class", value: "['\"\\\\bfnrtv]", description: "['\"\\\\bfnrtv]" },
function(char_) {
return char_
.replace("b", "\b")
.replace("f", "\f")
.replace("n", "\n")
.replace("r", "\r")
.replace("t", "\t")
.replace("v", "\x0B") // IE does not recognize "\v".
},
"/",
{ type: "literal", value: "/", description: "\"/\"" },
"i",
{ type: "literal", value: "i", description: "\"i\"" },
"",
function(parts) {
return { regex: parts[1], modifier: parts[3] };
},
"\\/",
{ type: "literal", value: "\\/", description: "\"\\\\/\"" },
function() { return "/"; },
{ type: "other", description: "whitespace" },
/^[ \t\n\r]/,
{ type: "class", value: "[ \\t\\n\\r]", description: "[ \\t\\n\\r]" }
],
peg$bytecode = [
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peg$decode("%$;50#*;5&/' 8!:\x91!! )"),
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peg$decode("<$;<0#*;<&=.\" 7\xA3"),
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],
peg$currPos = 0,
peg$savedPos = 0,
peg$posDetailsCache = [{ line: 1, column: 1, seenCR: false }],
peg$maxFailPos = 0,
peg$maxFailExpected = [],
peg$silentFails = 0,
peg$result;
if ("startRule" in options) {
if (!(options.startRule in peg$startRuleIndices)) {
throw new Error("Can't start parsing from rule \"" + options.startRule + "\".");
}
peg$startRuleIndex = peg$startRuleIndices[options.startRule];
}
function text() {
return input.substring(peg$savedPos, peg$currPos);
}
function location() {
return peg$computeLocation(peg$savedPos, peg$currPos);
}
function expected(description) {
throw peg$buildException(
null,
[{ type: "other", description: description }],
input.substring(peg$savedPos, peg$currPos),
peg$computeLocation(peg$savedPos, peg$currPos)
);
}
function error(message) {
throw peg$buildException(
message,
null,
input.substring(peg$savedPos, peg$currPos),
peg$computeLocation(peg$savedPos, peg$currPos)
);
}
function peg$computePosDetails(pos) {
var details = peg$posDetailsCache[pos],
p, ch;
if (details) {
return details;
} else {
p = pos - 1;
while (!peg$posDetailsCache[p]) {
p--;
}
details = peg$posDetailsCache[p];
details = {
line: details.line,
column: details.column,
seenCR: details.seenCR
};
while (p < pos) {
ch = input.charAt(p);
if (ch === "\n") {
if (!details.seenCR) { details.line++; }
details.column = 1;
details.seenCR = false;
} else if (ch === "\r" || ch === "\u2028" || ch === "\u2029") {
details.line++;
details.column = 1;
details.seenCR = true;
} else {
details.column++;
details.seenCR = false;
}
p++;
}
peg$posDetailsCache[pos] = details;
return details;
}
}
function peg$computeLocation(startPos, endPos) {
var startPosDetails = peg$computePosDetails(startPos),
endPosDetails = peg$computePosDetails(endPos);
return {
start: {
offset: startPos,
line: startPosDetails.line,
column: startPosDetails.column
},
end: {
offset: endPos,
line: endPosDetails.line,
column: endPosDetails.column
}
};
}
function peg$fail(expected) {
if (peg$currPos < peg$maxFailPos) { return; }
if (peg$currPos > peg$maxFailPos) {
peg$maxFailPos = peg$currPos;
peg$maxFailExpected = [];
}
peg$maxFailExpected.push(expected);
}
function peg$buildException(message, expected, found, location) {
function cleanupExpected(expected) {
var i = 1;
expected.sort(function(a, b) {
if (a.description < b.description) {
return -1;
} else if (a.description > b.description) {
return 1;
} else {
return 0;
}
});
while (i < expected.length) {
if (expected[i - 1] === expected[i]) {
expected.splice(i, 1);
} else {
i++;
}
}
}
function buildMessage(expected, found) {
function stringEscape(s) {
function hex(ch) { return ch.charCodeAt(0).toString(16).toUpperCase(); }
return s
.replace(/\\/g, '\\\\')
.replace(/"/g, '\\"')
.replace(/\x08/g, '\\b')
.replace(/\t/g, '\\t')
.replace(/\n/g, '\\n')
.replace(/\f/g, '\\f')
.replace(/\r/g, '\\r')
.replace(/[\x00-\x07\x0B\x0E\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
.replace(/[\x10-\x1F\x80-\xFF]/g, function(ch) { return '\\x' + hex(ch); })
.replace(/[\u0100-\u0FFF]/g, function(ch) { return '\\u0' + hex(ch); })
.replace(/[\u1000-\uFFFF]/g, function(ch) { return '\\u' + hex(ch); });
}
var expectedDescs = new Array(expected.length),
expectedDesc, foundDesc, i;
for (i = 0; i < expected.length; i++) {
expectedDescs[i] = expected[i].description;
}
expectedDesc = expected.length > 1
? expectedDescs.slice(0, -1).join(", ")
+ " or "
+ expectedDescs[expected.length - 1]
: expectedDescs[0];
foundDesc = found ? "\"" + stringEscape(found) + "\"" : "end of input";
return "Expected " + expectedDesc + " but " + foundDesc + " found.";
}
if (expected !== null) {
cleanupExpected(expected);
}
return new peg$SyntaxError(
message !== null ? message : buildMessage(expected, found),
expected,
found,
location
);
}
function peg$decode(s) {
var bc = new Array(s.length), i;
for (i = 0; i < s.length; i++) {
bc[i] = s.charCodeAt(i) - 32;
}
return bc;
}
function peg$parseRule(index) {
var bc = peg$bytecode[index],
ip = 0,
ips = [],
end = bc.length,
ends = [],
stack = [],
params, i;
while (true) {
while (ip < end) {
switch (bc[ip]) {
case 0:
stack.push(peg$consts[bc[ip + 1]]);
ip += 2;
break;
case 1:
stack.push(void 0);
ip++;
break;
case 2:
stack.push(null);
ip++;
break;
case 3:
stack.push(peg$FAILED);
ip++;
break;
case 4:
stack.push([]);
ip++;
break;
case 5:
stack.push(peg$currPos);
ip++;
break;
case 6:
stack.pop();
ip++;
break;
case 7:
peg$currPos = stack.pop();
ip++;
break;
case 8:
stack.length -= bc[ip + 1];
ip += 2;
break;
case 9:
stack.splice(-2, 1);
ip++;
break;
case 10:
stack[stack.length - 2].push(stack.pop());
ip++;
break;
case 11:
stack.push(stack.splice(stack.length - bc[ip + 1], bc[ip + 1]));
ip += 2;
break;
case 12:
stack.push(input.substring(stack.pop(), peg$currPos));
ip++;
break;
case 13:
ends.push(end);
ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
if (stack[stack.length - 1]) {
end = ip + 3 + bc[ip + 1];
ip += 3;
} else {
end = ip + 3 + bc[ip + 1] + bc[ip + 2];
ip += 3 + bc[ip + 1];
}
break;
case 14:
ends.push(end);
ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
if (stack[stack.length - 1] === peg$FAILED) {
end = ip + 3 + bc[ip + 1];
ip += 3;
} else {
end = ip + 3 + bc[ip + 1] + bc[ip + 2];
ip += 3 + bc[ip + 1];
}
break;
case 15:
ends.push(end);
ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
if (stack[stack.length - 1] !== peg$FAILED) {
end = ip + 3 + bc[ip + 1];
ip += 3;
} else {
end = ip + 3 + bc[ip + 1] + bc[ip + 2];
ip += 3 + bc[ip + 1];
}
break;
case 16:
if (stack[stack.length - 1] !== peg$FAILED) {
ends.push(end);
ips.push(ip);
end = ip + 2 + bc[ip + 1];
ip += 2;
} else {
ip += 2 + bc[ip + 1];
}
break;
case 17:
ends.push(end);
ips.push(ip + 3 + bc[ip + 1] + bc[ip + 2]);
if (input.length > peg$currPos) {
end = ip + 3 + bc[ip + 1];
ip += 3;
} else {
end = ip + 3 + bc[ip + 1] + bc[ip + 2];
ip += 3 + bc[ip + 1];
}
break;
case 18:
ends.push(end);
ips.push(ip + 4 + bc[ip + 2] + bc[ip + 3]);
if (input.substr(peg$currPos, peg$consts[bc[ip + 1]].length) === peg$consts[bc[ip + 1]]) {
end = ip + 4 + bc[ip + 2];
ip += 4;
} else {
end = ip + 4 + bc[ip + 2] + bc[ip + 3];
ip += 4 + bc[ip + 2];
}
break;
case 19:
ends.push(end);
ips.push(ip + 4 + bc[ip + 2] + bc[ip + 3]);
if (input.substr(peg$currPos, peg$consts[bc[ip + 1]].length).toLowerCase() === peg$consts[bc[ip + 1]]) {
end = ip + 4 + bc[ip + 2];
ip += 4;
} else {
end = ip + 4 + bc[ip + 2] + bc[ip + 3];
ip += 4 + bc[ip + 2];
}
break;
case 20:
ends.push(end);
ips.push(ip + 4 + bc[ip + 2] + bc[ip + 3]);
if (peg$consts[bc[ip + 1]].test(input.charAt(peg$currPos))) {
end = ip + 4 + bc[ip + 2];
ip += 4;
} else {
end = ip + 4 + bc[ip + 2] + bc[ip + 3];
ip += 4 + bc[ip + 2];
}
break;
case 21:
stack.push(input.substr(peg$currPos, bc[ip + 1]));
peg$currPos += bc[ip + 1];
ip += 2;
break;
case 22:
stack.push(peg$consts[bc[ip + 1]]);
peg$currPos += peg$consts[bc[ip + 1]].length;
ip += 2;
break;
case 23:
stack.push(peg$FAILED);
if (peg$silentFails === 0) {
peg$fail(peg$consts[bc[ip + 1]]);
}
ip += 2;
break;
case 24:
peg$savedPos = stack[stack.length - 1 - bc[ip + 1]];
ip += 2;
break;
case 25:
peg$savedPos = peg$currPos;
ip++;
break;
case 26:
params = bc.slice(ip + 4, ip + 4 + bc[ip + 3]);
for (i = 0; i < bc[ip + 3]; i++) {
params[i] = stack[stack.length - 1 - params[i]];
}
stack.splice(
stack.length - bc[ip + 2],
bc[ip + 2],
peg$consts[bc[ip + 1]].apply(null, params)
);
ip += 4 + bc[ip + 3];
break;
case 27:
stack.push(peg$parseRule(bc[ip + 1]));
ip += 2;
break;
case 28:
peg$silentFails++;
ip++;
break;
case 29:
peg$silentFails--;
ip++;
break;
default:
throw new Error("Invalid opcode: " + bc[ip] + ".");
}
}
if (ends.length > 0) {
end = ends.pop();
ip = ips.pop();
} else {
break;
}
}
return stack[0];
}
peg$result = peg$parseRule(peg$startRuleIndex);
if (peg$result !== peg$FAILED && peg$currPos === input.length) {
return peg$result;
} else {
if (peg$result !== peg$FAILED && peg$currPos < input.length) {
peg$fail({ type: "end", description: "end of input" });
}
throw peg$buildException(
null,
peg$maxFailExpected,
peg$maxFailPos < input.length ? input.charAt(peg$maxFailPos) : null,
peg$maxFailPos < input.length
? peg$computeLocation(peg$maxFailPos, peg$maxFailPos + 1)
: peg$computeLocation(peg$maxFailPos, peg$maxFailPos)
);
}
}
return {
SyntaxError: peg$SyntaxError,
parse: peg$parse
};
})();