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-rw-r--r--src/nodejs/alternative/parser.js1174
-rw-r--r--src/nodejs/alternative/testgrammar28
2 files changed, 1202 insertions, 0 deletions
diff --git a/src/nodejs/alternative/parser.js b/src/nodejs/alternative/parser.js
new file mode 100644
index 0000000..d388471
--- /dev/null
+++ b/src/nodejs/alternative/parser.js
@@ -0,0 +1,1174 @@
+exports.parser = parser = (function(){
+ /* Generated by PEG.js (http://pegjs.majda.cz/). */
+
+ var result = {
+ /*
+ * Parses the input with a generated parser. If the parsing is successfull,
+ * returns a value explicitly or implicitly specified by the grammar from
+ * which the parser was generated (see |PEG.buildParser|). If the parsing is
+ * unsuccessful, throws |PEG.grammarParser.SyntaxError| describing the error.
+ */
+ parse: function(input) {
+ var pos = 0;
+ var rightmostMatchFailuresPos = 0;
+ var rightmostMatchFailuresExpected = [];
+ var cache = {};
+
+ function padLeft(input, padding, length) {
+ var result = input;
+
+ var padLength = length - input.length;
+ for (var i = 0; i < padLength; i++) {
+ result = padding + result;
+ }
+
+ return result;
+ }
+
+ function escape(ch) {
+ var charCode = ch.charCodeAt(0);
+
+ if (charCode <= 0xFF) {
+ var escapeChar = 'x';
+ var length = 2;
+ } else {
+ var escapeChar = 'u';
+ var length = 4;
+ }
+
+ return '\\' + escapeChar + padLeft(charCode.toString(16).toUpperCase(), '0', length);
+ }
+
+ function quoteString(s) {
+ /*
+ * ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a
+ * string literal except for the closing quote character, backslash,
+ * carriage return, line separator, paragraph separator, and line feed.
+ * Any character may appear in the form of an escape sequence.
+ */
+ return '"' + s
+ .replace(/\\/g, '\\\\') // backslash
+ .replace(/"/g, '\\"') // closing quote character
+ .replace(/\r/g, '\\r') // carriage return
+ .replace(/\u2028/g, '\\u2028') // line separator
+ .replace(/\u2029/g, '\\u2029') // paragraph separator
+ .replace(/\n/g, '\\n') // line feed
+ .replace(/[\x80-\uFFFF]/g, escape) // non-ASCII characters
+ + '"';
+ }
+
+ function arrayContains(array, value) {
+ /*
+ * Stupid IE does not have Array.prototype.indexOf, otherwise this
+ * function would be a one-liner.
+ */
+ var length = array.length;
+ for (var i = 0; i < length; i++) {
+ if (array[i] === value) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ function matchFailed(failure) {
+ if (pos < rightmostMatchFailuresPos) {
+ return;
+ }
+
+ if (pos > rightmostMatchFailuresPos) {
+ rightmostMatchFailuresPos = pos;
+ rightmostMatchFailuresExpected = [];
+ }
+
+ if (!arrayContains(rightmostMatchFailuresExpected, failure)) {
+ rightmostMatchFailuresExpected.push(failure);
+ }
+ }
+
+ function parse_url(context) {
+ var cacheKey = "url" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var savedPos1 = pos;
+ var result9 = parse_object(context);
+ if (result9 !== null) {
+ var result10 = parse_predicate(context);
+ if (result10 !== null) {
+ var result11 = parse_predicate(context);
+ if (result11 !== null) {
+ var result8 = [result9, result10, result11];
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ var result7 = result8 !== null
+ ? (function(object, p1, p2) { var result = {object:object}; if(p1.tags != undefined) {result.tags= p1.tags} else if(p1.bbox != undefined) {result.bbox=p1.bbox;} if(p2.tags != undefined) {result.tags= p2.tags} else if(p2.bbox != undefined) {result.bbox=p2.bbox;} return result;})(result8[0], result8[1], result8[2])
+ : null;
+ if (result7 !== null) {
+ var result0 = result7;
+ } else {
+ var savedPos0 = pos;
+ var result5 = parse_object(context);
+ if (result5 !== null) {
+ var result6 = parse_predicate(context);
+ if (result6 !== null) {
+ var result4 = [result5, result6];
+ } else {
+ var result4 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result4 = null;
+ pos = savedPos0;
+ }
+ var result3 = result4 !== null
+ ? (function(object, p) {var result={}; result.object=object; if(p.tags != undefined) {result.tags=p.tags} else {result.bbox=p.bbox} return result})(result4[0], result4[1])
+ : null;
+ if (result3 !== null) {
+ var result0 = result3;
+ } else {
+ var result2 = parse_object(context);
+ var result1 = result2 !== null
+ ? (function(object) { return {object:object}})(result2)
+ : null;
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_object(context) {
+ var cacheKey = "object" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ if (input.substr(pos, 4) === "node") {
+ var result8 = "node";
+ pos += 4;
+ } else {
+ var result8 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("node"));
+ }
+ }
+ var result7 = result8 !== null
+ ? (function(v) {return v})(result8)
+ : null;
+ if (result7 !== null) {
+ var result0 = result7;
+ } else {
+ if (input.substr(pos, 3) === "way") {
+ var result6 = "way";
+ pos += 3;
+ } else {
+ var result6 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("way"));
+ }
+ }
+ var result5 = result6 !== null
+ ? (function(v) {return v})(result6)
+ : null;
+ if (result5 !== null) {
+ var result0 = result5;
+ } else {
+ if (input.substr(pos, 8) === "relation") {
+ var result4 = "relation";
+ pos += 8;
+ } else {
+ var result4 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("relation"));
+ }
+ }
+ var result3 = result4 !== null
+ ? (function(v) {return v})(result4)
+ : null;
+ if (result3 !== null) {
+ var result0 = result3;
+ } else {
+ if (input.substr(pos, 1) === "*") {
+ var result2 = "*";
+ pos += 1;
+ } else {
+ var result2 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("*"));
+ }
+ }
+ var result1 = result2 !== null
+ ? (function(v) {return v})(result2)
+ : null;
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ };
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_predicate(context) {
+ var cacheKey = "predicate" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var result4 = parse_bboxpredicate(context);
+ if (result4 !== null) {
+ var result0 = result4;
+ } else {
+ var result3 = parse_tagpredicate(context);
+ var result2 = result3 !== null
+ ? (function(v) {return {tags:v}})(result3)
+ : null;
+ if (result2 !== null) {
+ var result0 = result2;
+ } else {
+ var result1 = parse_childpredicate(context);
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_tagpredicate(context) {
+ var cacheKey = "tagpredicate" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var savedPos0 = pos;
+ if (input.substr(pos, 1) === "[") {
+ var result2 = "[";
+ pos += 1;
+ } else {
+ var result2 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("["));
+ }
+ }
+ if (result2 !== null) {
+ var result3 = parse_keys(context);
+ if (result3 !== null) {
+ if (input.substr(pos, 1) === "=") {
+ var result4 = "=";
+ pos += 1;
+ } else {
+ var result4 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("="));
+ }
+ }
+ if (result4 !== null) {
+ var result5 = parse_values(context);
+ if (result5 !== null) {
+ if (input.substr(pos, 1) === "]") {
+ var result6 = "]";
+ pos += 1;
+ } else {
+ var result6 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("]"));
+ }
+ }
+ if (result6 !== null) {
+ var result1 = [result2, result3, result4, result5, result6];
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ var result0 = result1 !== null
+ ? (function(keys, values) {return {keys:keys, values:values}})(result1[1], result1[3])
+ : null;
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_childpredicate(context) {
+ var cacheKey = "childpredicate" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ if (input.substr(pos, 7) === "not(nd)") {
+ var result0 = "not(nd)";
+ pos += 7;
+ } else {
+ var result0 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("not(nd)"));
+ }
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_bboxpredicate(context) {
+ var cacheKey = "bboxpredicate" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var savedPos0 = pos;
+ if (input.substr(pos, 6) === "[bbox=") {
+ var result2 = "[bbox=";
+ pos += 6;
+ } else {
+ var result2 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("[bbox="));
+ }
+ }
+ if (result2 !== null) {
+ var result3 = parse_float(context);
+ if (result3 !== null) {
+ if (input.substr(pos, 1) === ",") {
+ var result4 = ",";
+ pos += 1;
+ } else {
+ var result4 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString(","));
+ }
+ }
+ if (result4 !== null) {
+ var result5 = parse_float(context);
+ if (result5 !== null) {
+ if (input.substr(pos, 1) === ",") {
+ var result6 = ",";
+ pos += 1;
+ } else {
+ var result6 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString(","));
+ }
+ }
+ if (result6 !== null) {
+ var result7 = parse_float(context);
+ if (result7 !== null) {
+ if (input.substr(pos, 1) === ",") {
+ var result8 = ",";
+ pos += 1;
+ } else {
+ var result8 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString(","));
+ }
+ }
+ if (result8 !== null) {
+ var result9 = parse_float(context);
+ if (result9 !== null) {
+ if (input.substr(pos, 1) === "]") {
+ var result10 = "]";
+ pos += 1;
+ } else {
+ var result10 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("]"));
+ }
+ }
+ if (result10 !== null) {
+ var result1 = [result2, result3, result4, result5, result6, result7, result8, result9, result10];
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result1 = null;
+ pos = savedPos0;
+ }
+ var result0 = result1 !== null
+ ? (function(left, top, right, bottom) { return {bbox:{left:left,top:top,right:right,bottom:bottom}}})(result1[1], result1[3], result1[5], result1[7])
+ : null;
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_keys(context) {
+ var cacheKey = "keys" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var savedPos0 = pos;
+ var result5 = parse_key(context);
+ if (result5 !== null) {
+ var savedPos1 = pos;
+ if (input.substr(pos, 1) === "|") {
+ var result8 = "|";
+ pos += 1;
+ } else {
+ var result8 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("|"));
+ }
+ }
+ if (result8 !== null) {
+ var result9 = parse_keys(context);
+ if (result9 !== null) {
+ var result7 = [result8, result9];
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ if (result7 !== null) {
+ var result6 = [];
+ while (result7 !== null) {
+ result6.push(result7);
+ var savedPos1 = pos;
+ if (input.substr(pos, 1) === "|") {
+ var result8 = "|";
+ pos += 1;
+ } else {
+ var result8 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("|"));
+ }
+ }
+ if (result8 !== null) {
+ var result9 = parse_keys(context);
+ if (result9 !== null) {
+ var result7 = [result8, result9];
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ }
+ } else {
+ var result6 = null;
+ }
+ if (result6 !== null) {
+ var result4 = [result5, result6];
+ } else {
+ var result4 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result4 = null;
+ pos = savedPos0;
+ }
+ var result3 = result4 !== null
+ ? (function(key, keys) { var result = new Array(); result.push(key); return result.concat(keys[0][1])})(result4[0], result4[1])
+ : null;
+ if (result3 !== null) {
+ var result0 = result3;
+ } else {
+ var result2 = parse_key(context);
+ var result1 = result2 !== null
+ ? (function(key) { var result = new Array(); result.push(key); return result})(result2)
+ : null;
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_values(context) {
+ var cacheKey = "values" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var savedPos0 = pos;
+ var result5 = parse_value(context);
+ if (result5 !== null) {
+ var savedPos1 = pos;
+ if (input.substr(pos, 1) === "|") {
+ var result8 = "|";
+ pos += 1;
+ } else {
+ var result8 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("|"));
+ }
+ }
+ if (result8 !== null) {
+ var result9 = parse_values(context);
+ if (result9 !== null) {
+ var result7 = [result8, result9];
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ if (result7 !== null) {
+ var result6 = [];
+ while (result7 !== null) {
+ result6.push(result7);
+ var savedPos1 = pos;
+ if (input.substr(pos, 1) === "|") {
+ var result8 = "|";
+ pos += 1;
+ } else {
+ var result8 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("|"));
+ }
+ }
+ if (result8 !== null) {
+ var result9 = parse_values(context);
+ if (result9 !== null) {
+ var result7 = [result8, result9];
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result7 = null;
+ pos = savedPos1;
+ }
+ }
+ } else {
+ var result6 = null;
+ }
+ if (result6 !== null) {
+ var result4 = [result5, result6];
+ } else {
+ var result4 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result4 = null;
+ pos = savedPos0;
+ }
+ var result3 = result4 !== null
+ ? (function(value, values) { var result = new Array(); result.push(value); return result.concat(values[0][1])})(result4[0], result4[1])
+ : null;
+ if (result3 !== null) {
+ var result0 = result3;
+ } else {
+ var result2 = parse_value(context);
+ var result1 = result2 !== null
+ ? (function(value) { var result = new Array(); result.push(value); return result})(result2)
+ : null;
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_key(context) {
+ var cacheKey = "key" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var result2 = parse_letter(context);
+ if (result2 !== null) {
+ var result1 = [];
+ while (result2 !== null) {
+ result1.push(result2);
+ var result2 = parse_letter(context);
+ }
+ } else {
+ var result1 = null;
+ }
+ var result0 = result1 !== null
+ ? (function(key) {return key.join("")})(result1)
+ : null;
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_value(context) {
+ var cacheKey = "value" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var result2 = parse_letter(context);
+ if (result2 !== null) {
+ var result1 = [];
+ while (result2 !== null) {
+ result1.push(result2);
+ var result2 = parse_letter(context);
+ }
+ } else {
+ var result1 = null;
+ }
+ var result0 = result1 !== null
+ ? (function(value) {return value.join("")})(result1)
+ : null;
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_letter(context) {
+ var cacheKey = "letter" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ if (input.substr(pos, 2) === "\\*") {
+ var result11 = "\\*";
+ pos += 2;
+ } else {
+ var result11 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("\\*"));
+ }
+ }
+ var result10 = result11 !== null
+ ? (function() {return "*"})()
+ : null;
+ if (result10 !== null) {
+ var result0 = result10;
+ } else {
+ if (input.substr(pos, 2) === "\\[") {
+ var result9 = "\\[";
+ pos += 2;
+ } else {
+ var result9 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("\\["));
+ }
+ }
+ var result8 = result9 !== null
+ ? (function() {return "["})()
+ : null;
+ if (result8 !== null) {
+ var result0 = result8;
+ } else {
+ if (input.substr(pos, 2) === "\\]") {
+ var result7 = "\\]";
+ pos += 2;
+ } else {
+ var result7 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("\\]"));
+ }
+ }
+ var result6 = result7 !== null
+ ? (function() {return "]" })()
+ : null;
+ if (result6 !== null) {
+ var result0 = result6;
+ } else {
+ if (input.substr(pos, 2) === "\\\\") {
+ var result5 = "\\\\";
+ pos += 2;
+ } else {
+ var result5 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("\\\\"));
+ }
+ }
+ var result4 = result5 !== null
+ ? (function() {return "\\"})()
+ : null;
+ if (result4 !== null) {
+ var result0 = result4;
+ } else {
+ if (input.substr(pos, 2) === "\\|") {
+ var result3 = "\\|";
+ pos += 2;
+ } else {
+ var result3 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("\\|"));
+ }
+ }
+ var result2 = result3 !== null
+ ? (function() {return "|" })()
+ : null;
+ if (result2 !== null) {
+ var result0 = result2;
+ } else {
+ if (input.substr(pos).match(/^[^*|=\\\][]/) !== null) {
+ var result1 = input.charAt(pos);
+ pos++;
+ } else {
+ var result1 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[^*|=\\\\\\][]");
+ }
+ }
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ };
+ };
+ };
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function parse_float(context) {
+ var cacheKey = "float" + '@' + pos;
+ var cachedResult = cache[cacheKey];
+ if (cachedResult) {
+ pos = cachedResult.nextPos;
+ return cachedResult.result;
+ }
+
+
+ var savedPos1 = pos;
+ if (input.substr(pos, 1) === "-") {
+ var result15 = "-";
+ pos += 1;
+ } else {
+ var result15 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("-"));
+ }
+ }
+ var result9 = result15 !== null ? result15 : '';
+ if (result9 !== null) {
+ if (input.substr(pos).match(/^[0-9]/) !== null) {
+ var result14 = input.charAt(pos);
+ pos++;
+ } else {
+ var result14 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[0-9]");
+ }
+ }
+ if (result14 !== null) {
+ var result10 = [];
+ while (result14 !== null) {
+ result10.push(result14);
+ if (input.substr(pos).match(/^[0-9]/) !== null) {
+ var result14 = input.charAt(pos);
+ pos++;
+ } else {
+ var result14 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[0-9]");
+ }
+ }
+ }
+ } else {
+ var result10 = null;
+ }
+ if (result10 !== null) {
+ if (input.substr(pos, 1) === ".") {
+ var result11 = ".";
+ pos += 1;
+ } else {
+ var result11 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("."));
+ }
+ }
+ if (result11 !== null) {
+ if (input.substr(pos).match(/^[0-9]/) !== null) {
+ var result13 = input.charAt(pos);
+ pos++;
+ } else {
+ var result13 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[0-9]");
+ }
+ }
+ if (result13 !== null) {
+ var result12 = [];
+ while (result13 !== null) {
+ result12.push(result13);
+ if (input.substr(pos).match(/^[0-9]/) !== null) {
+ var result13 = input.charAt(pos);
+ pos++;
+ } else {
+ var result13 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[0-9]");
+ }
+ }
+ }
+ } else {
+ var result12 = null;
+ }
+ if (result12 !== null) {
+ var result8 = [result9, result10, result11, result12];
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ } else {
+ var result8 = null;
+ pos = savedPos1;
+ }
+ var result7 = result8 !== null
+ ? (function(m, digits, digits2) { result = parseInt(digits.join(""))+parseFloat("0."+digits2.join("")); if(m == "-") {result=result*-1}; return result})(result8[0], result8[1], result8[3])
+ : null;
+ if (result7 !== null) {
+ var result0 = result7;
+ } else {
+ var savedPos0 = pos;
+ if (input.substr(pos, 1) === "-") {
+ var result6 = "-";
+ pos += 1;
+ } else {
+ var result6 = null;
+ if (context.reportMatchFailures) {
+ matchFailed(quoteString("-"));
+ }
+ }
+ var result3 = result6 !== null ? result6 : '';
+ if (result3 !== null) {
+ if (input.substr(pos).match(/^[0-9]/) !== null) {
+ var result5 = input.charAt(pos);
+ pos++;
+ } else {
+ var result5 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[0-9]");
+ }
+ }
+ if (result5 !== null) {
+ var result4 = [];
+ while (result5 !== null) {
+ result4.push(result5);
+ if (input.substr(pos).match(/^[0-9]/) !== null) {
+ var result5 = input.charAt(pos);
+ pos++;
+ } else {
+ var result5 = null;
+ if (context.reportMatchFailures) {
+ matchFailed("[0-9]");
+ }
+ }
+ }
+ } else {
+ var result4 = null;
+ }
+ if (result4 !== null) {
+ var result2 = [result3, result4];
+ } else {
+ var result2 = null;
+ pos = savedPos0;
+ }
+ } else {
+ var result2 = null;
+ pos = savedPos0;
+ }
+ var result1 = result2 !== null
+ ? (function(m, digits) { result = parseInt(digits.join("")); if(m == "-") {result = result*-1}; return result})(result2[0], result2[1])
+ : null;
+ if (result1 !== null) {
+ var result0 = result1;
+ } else {
+ var result0 = null;;
+ };
+ }
+
+
+
+ cache[cacheKey] = {
+ nextPos: pos,
+ result: result0
+ };
+ return result0;
+ }
+
+ function buildErrorMessage() {
+ function buildExpected(failuresExpected) {
+ switch (failuresExpected.length) {
+ case 0:
+ return 'end of input';
+ case 1:
+ return failuresExpected[0];
+ default:
+ failuresExpected.sort();
+ return failuresExpected.slice(0, failuresExpected.length - 1).join(', ')
+ + ' or '
+ + failuresExpected[failuresExpected.length - 1];
+ }
+ }
+
+ var expected = buildExpected(rightmostMatchFailuresExpected);
+ var actualPos = Math.max(pos, rightmostMatchFailuresPos);
+ var actual = actualPos < input.length
+ ? quoteString(input.charAt(actualPos))
+ : 'end of input';
+
+ return 'Expected ' + expected + ' but ' + actual + ' found.';
+ }
+
+ function computeErrorPosition() {
+ /*
+ * The first idea was to use |String.split| to break the input up to the
+ * error position along newlines and derive the line and column from
+ * there. However IE's |split| implementation is so broken that it was
+ * enough to prevent it.
+ */
+
+ var line = 1;
+ var column = 1;
+ var seenCR = false;
+
+ for (var i = 0; i < rightmostMatchFailuresPos; i++) {
+ var ch = input.charAt(i);
+ if (ch === '\n') {
+ if (!seenCR) { line++; }
+ column = 1;
+ seenCR = false;
+ } else if (ch === '\r' | ch === '\u2028' || ch === '\u2029') {
+ line++;
+ column = 1;
+ seenCR = true;
+ } else {
+ column++;
+ seenCR = false;
+ }
+ }
+
+ return { line: line, column: column };
+ }
+
+
+
+ var result = parse_url({ reportMatchFailures: true });
+
+ /*
+ * The parser is now in one of the following three states:
+ *
+ * 1. The parser successfully parsed the whole input.
+ *
+ * - |result !== null|
+ * - |pos === input.length|
+ * - |rightmostMatchFailuresExpected| may or may not contain something
+ *
+ * 2. The parser successfully parsed only a part of the input.
+ *
+ * - |result !== null|
+ * - |pos < input.length|
+ * - |rightmostMatchFailuresExpected| may or may not contain something
+ *
+ * 3. The parser did not successfully parse any part of the input.
+ *
+ * - |result === null|
+ * - |pos === 0|
+ * - |rightmostMatchFailuresExpected| contains at least one failure
+ *
+ * All code following this comment (including called functions) must
+ * handle these states.
+ */
+ if (result === null || pos !== input.length) {
+ var errorPosition = computeErrorPosition();
+ throw new this.SyntaxError(
+ buildErrorMessage(),
+ errorPosition.line,
+ errorPosition.column
+ );
+ }
+
+ return result;
+ },
+
+ /* Returns the parser source code. */
+ toSource: function() { return this._source; }
+ };
+
+ /* Thrown when a parser encounters a syntax error. */
+
+ result.SyntaxError = function(message, line, column) {
+ this.name = 'SyntaxError';
+ this.message = message;
+ this.line = line;
+ this.column = column;
+ };
+
+ result.SyntaxError.prototype = Error.prototype;
+
+ return result;
+})();
diff --git a/src/nodejs/alternative/testgrammar b/src/nodejs/alternative/testgrammar
new file mode 100644
index 0000000..0e43013
--- /dev/null
+++ b/src/nodejs/alternative/testgrammar
@@ -0,0 +1,28 @@
+/*
+ * Classic example grammar, which recognizes simple arithmetic expressions like
+ * "2*(3+4)". The parser generated from this grammar then computes their value.
+ */
+
+url = object:object p1:predicate p2:predicate { var result = {object:object}; if(p1.tags != undefined) {result.tags= p1.tags} else if(p1.bbox != undefined) {result.bbox=p1.bbox;} if(p2.tags != undefined) {result.tags= p2.tags} else if(p2.bbox != undefined) {result.bbox=p2.bbox;} return result;}/ object:object p:predicate {var result={}; result.object=object; if(p.tags != undefined) {result.tags=p.tags} else {result.bbox=p.bbox} return result} / object:object { return {object:object}}
+
+object = v:"node" {return v} / v:"way" {return v} / v:"relation" {return v} / v:"*" {return v}
+
+
+
+predicate = bboxpredicate / v:tagpredicate {return {tags:v}}/ childpredicate
+
+tagpredicate = "["keys:keys"="values:values"]" {return {keys:keys, values:values}}
+
+childpredicate = "not(nd)"
+bboxpredicate = "[bbox=" left:float "," top:float","right:float","bottom:float"]" { return {bbox:{left:left,top:top,right:right,bottom:bottom}}}
+
+keys = key:key keys:("|" keys)+ { var result = new Array(); result.push(key); return result.concat(keys[0][1])} / key:key { var result = new Array(); result.push(key); return result}
+
+values = value:value values:("|" values)+ { var result = new Array(); result.push(value); return result.concat(values[0][1])} / value:value { var result = new Array(); result.push(value); return result}
+
+key = key:letter+ {return key.join("")}
+value = value:letter+ {return value.join("")}
+letter = "\\*" {return "*"} / "\\[" {return "["} / "\\]" {return "]" } / "\\\\" {return "\\"} / "\\|" {return "|" } / [^*|=\\\][]
+
+//add negative values
+float = m:"-"?digits:[0-9]+"."digits2:[0-9]+ { result = parseInt(digits.join(""))+parseFloat("0."+digits2.join("")); if(m == "-") {result=result*-1}; return result} / m:"-"?digits:[0-9]+ { result = parseInt(digits.join("")); if(m == "-") {result = result*-1}; return result}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 17:08:03 +0000