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lib-cov | ||
*.seed | ||
*.log | ||
*.csv | ||
*.dat | ||
*.out | ||
*.pid | ||
*.gz | ||
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pids | ||
logs | ||
results | ||
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npm-debug.log | ||
node_modules/* | ||
*.DS_Store |
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The MIT License (MIT) | ||
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Copyright (c) 2010 Henrik Muehe | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy | ||
of this software and associated documentation files (the "Software"), to deal | ||
in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
copies of the Software, and to permit persons to whom the Software is | ||
furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in | ||
all copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
THE SOFTWARE. |
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bibtex-parser | ||
============= | ||
A pure JavaScript BibTeX parser. Based on the following implementation by Henrik Muehe: | ||
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* https://code.google.com/p/bibtex-js/ | ||
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## Example | ||
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```javascript | ||
var bibliography = "@inproceedings{Lysenko:2010:GMC:1839778.1839781,\ | ||
author = {Lysenko, Mikola and Nelaturi, Saigopal and Shapiro, Vadim},\ | ||
title = {Group morphology with convolution algebras},\ | ||
booktitle = {Proceedings of the 14th ACM Symposium on Solid and Physical Modeling},\ | ||
series = {SPM '10},\ | ||
year = {2010},\ | ||
isbn = {978-1-60558-984-8},\ | ||
location = {Haifa, Israel},\ | ||
pages = {11--22},\ | ||
numpages = {12},\ | ||
url = {http://doi.acm.org/10.1145/1839778.1839781},\ | ||
doi = {10.1145/1839778.1839781},\ | ||
acmid = {1839781},\ | ||
publisher = {ACM},\ | ||
address = {New York, NY, USA},\ | ||
}" | ||
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var parse = require("bibtex-parser") | ||
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console.log(parse(bibliography)) | ||
``` | ||
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## Install | ||
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npm install bibtex-parser | ||
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## API | ||
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```javascript | ||
var parse = require("bibtex-parser") | ||
``` | ||
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### `parse(input)` | ||
Parses a string as a bibtex file. The result is an object whose properties are the entries of the bibtex file, and whose values are objects with contents of the bibtex file. | ||
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* `input` is a string representing a bibtex file | ||
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**Returns** A parsed bibtex file as a JSON object | ||
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## Credits | ||
(c) 2010 Henrik Muehe. MIT License | ||
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CommonJS port maintained by Mikola Lysenko |
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// Original work by Henrik Muehe (c) 2010 | ||
// | ||
// CommonJS port by Mikola Lysenko 2013 | ||
// | ||
// | ||
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// Issues: | ||
// no comment handling within strings | ||
// no string concatenation | ||
// no variable values yet | ||
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// Grammar implemented here: | ||
// bibtex -> (string | preamble | comment | entry)*; | ||
// string -> '@STRING' '{' key_equals_value '}'; | ||
// preamble -> '@PREAMBLE' '{' value '}'; | ||
// comment -> '@COMMENT' '{' value '}'; | ||
// entry -> '@' key '{' key ',' key_value_list '}'; | ||
// key_value_list -> key_equals_value (',' key_equals_value)*; | ||
// key_equals_value -> key '=' value; | ||
// value -> value_quotes | value_braces | key; | ||
// value_quotes -> '"' .*? '"'; // not quite | ||
// value_braces -> '{' .*? '"'; // not quite | ||
function BibtexParser() { | ||
this.pos = 0; | ||
this.input = ""; | ||
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this.entries = {}; | ||
this.strings = { | ||
JAN: "January", | ||
FEB: "February", | ||
MAR: "March", | ||
APR: "April", | ||
MAY: "May", | ||
JUN: "June", | ||
JUL: "July", | ||
AUG: "August", | ||
SEP: "September", | ||
OCT: "October", | ||
NOV: "November", | ||
DEC: "December" | ||
}; | ||
this.currentKey = ""; | ||
this.currentEntry = ""; | ||
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this.setInput = function(t) { | ||
this.input = t; | ||
} | ||
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this.getEntries = function() { | ||
return this.entries; | ||
} | ||
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this.isWhitespace = function(s) { | ||
return (s == ' ' || s == '\r' || s == '\t' || s == '\n'); | ||
} | ||
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this.match = function(s) { | ||
this.skipWhitespace(); | ||
if (this.input.substring(this.pos, this.pos+s.length) == s) { | ||
this.pos += s.length; | ||
} else { | ||
throw "Token mismatch, expected " + s + ", found " + this.input.substring(this.pos); | ||
} | ||
this.skipWhitespace(); | ||
} | ||
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this.tryMatch = function(s) { | ||
this.skipWhitespace(); | ||
if (this.input.substring(this.pos, this.pos+s.length) == s) { | ||
return true; | ||
} else { | ||
return false; | ||
} | ||
this.skipWhitespace(); | ||
} | ||
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this.skipWhitespace = function() { | ||
while (this.isWhitespace(this.input[this.pos])) { | ||
this.pos++; | ||
} | ||
if (this.input[this.pos] == "%") { | ||
while(this.input[this.pos] != "\n") { | ||
this.pos++; | ||
} | ||
this.skipWhitespace(); | ||
} | ||
} | ||
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this.value_braces = function() { | ||
var bracecount = 0; | ||
this.match("{"); | ||
var start = this.pos; | ||
while(true) { | ||
if (this.input[this.pos] == '}' && this.input[this.pos-1] != '\\') { | ||
if (bracecount > 0) { | ||
bracecount--; | ||
} else { | ||
var end = this.pos; | ||
this.match("}"); | ||
return this.input.substring(start, end); | ||
} | ||
} else if (this.input[this.pos] == '{') { | ||
bracecount++; | ||
} else if (this.pos == this.input.length-1) { | ||
throw "Unterminated value"; | ||
} | ||
this.pos++; | ||
} | ||
} | ||
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this.value_quotes = function() { | ||
this.match('"'); | ||
var start = this.pos; | ||
while(true) { | ||
if (this.input[this.pos] == '"' && this.input[this.pos-1] != '\\') { | ||
var end = this.pos; | ||
this.match('"'); | ||
return this.input.substring(start, end); | ||
} else if (this.pos == this.input.length-1) { | ||
throw "Unterminated value:" + this.input.substring(start); | ||
} | ||
this.pos++; | ||
} | ||
} | ||
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this.single_value = function() { | ||
var start = this.pos; | ||
if (this.tryMatch("{")) { | ||
return this.value_braces(); | ||
} else if (this.tryMatch('"')) { | ||
return this.value_quotes(); | ||
} else { | ||
var k = this.key(); | ||
if (this.strings[k.toUpperCase()]) { | ||
return this.strings[k]; | ||
} else if (k.match("^[0-9]+$")) { | ||
return k; | ||
} else { | ||
throw "Value expected:" + this.input.substring(start); | ||
} | ||
} | ||
} | ||
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this.value = function() { | ||
var values = []; | ||
values.push(this.single_value()); | ||
while (this.tryMatch("#")) { | ||
this.match("#"); | ||
values.push(this.single_value()); | ||
} | ||
return values.join(""); | ||
} | ||
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this.key = function() { | ||
var start = this.pos; | ||
while(true) { | ||
if (this.pos == this.input.length) { | ||
throw "Runaway key"; | ||
} | ||
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if (this.input[this.pos].match("[a-zA-Z0-9_:\\./-]")) { | ||
this.pos++ | ||
} else { | ||
return this.input.substring(start, this.pos).toUpperCase(); | ||
} | ||
} | ||
} | ||
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this.key_equals_value = function() { | ||
var key = this.key(); | ||
if (this.tryMatch("=")) { | ||
this.match("="); | ||
var val = this.value(); | ||
return [ key, val ]; | ||
} else { | ||
throw "... = value expected, equals sign missing:" + this.input.substring(this.pos); | ||
} | ||
} | ||
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this.key_value_list = function() { | ||
var kv = this.key_equals_value(); | ||
this.entries[this.currentEntry][kv[0]] = kv[1]; | ||
while (this.tryMatch(",")) { | ||
this.match(","); | ||
// fixes problems with commas at the end of a list | ||
if (this.tryMatch("}")) { | ||
break; | ||
} | ||
kv = this.key_equals_value(); | ||
this.entries[this.currentEntry][kv[0]] = kv[1]; | ||
} | ||
} | ||
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this.entry_body = function(d) { | ||
this.currentEntry = this.key(); | ||
this.entries[this.currentEntry] = { entryType: d.substring(1) }; | ||
this.match(","); | ||
this.key_value_list(); | ||
} | ||
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this.directive = function () { | ||
this.match("@"); | ||
return "@"+this.key(); | ||
} | ||
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this.string = function () { | ||
var kv = this.key_equals_value(); | ||
this.strings[kv[0].toUpperCase()] = kv[1]; | ||
} | ||
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this.preamble = function() { | ||
this.value(); | ||
} | ||
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this.comment = function() { | ||
this.value(); // this is wrong | ||
} | ||
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this.entry = function(d) { | ||
this.entry_body(d); | ||
} | ||
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this.bibtex = function() { | ||
while(this.tryMatch("@")) { | ||
var d = this.directive().toUpperCase(); | ||
this.match("{"); | ||
if (d == "@STRING") { | ||
this.string(); | ||
} else if (d == "@PREAMBLE") { | ||
this.preamble(); | ||
} else if (d == "@COMMENT") { | ||
this.comment(); | ||
} else { | ||
this.entry(d); | ||
} | ||
this.match("}"); | ||
} | ||
} | ||
} | ||
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//Runs the parser | ||
function doParse(input) { | ||
var b = new BibtexParser() | ||
b.setInput(input) | ||
b.bibtex() | ||
return b.entries | ||
} | ||
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module.exports = doParse |
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@inproceedings{Lysenko:2010:GMC:1839778.1839781, | ||
author = {Lysenko, Mikola and Nelaturi, Saigopal and Shapiro, Vadim}, | ||
title = {Group morphology with convolution algebras}, | ||
booktitle = {Proceedings of the 14th ACM Symposium on Solid and Physical Modeling}, | ||
series = {SPM '10}, | ||
year = {2010}, | ||
isbn = {978-1-60558-984-8}, | ||
location = {Haifa, Israel}, | ||
pages = {11--22}, | ||
numpages = {12}, | ||
url = {http://doi.acm.org/10.1145/1839778.1839781}, | ||
doi = {10.1145/1839778.1839781}, | ||
acmid = {1839781}, | ||
publisher = {ACM}, | ||
address = {New York, NY, USA}, | ||
} |
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"use strict" | ||
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var bib = require("fs").readFileSync(__dirname + "/test.bib").toString() | ||
var parse = require("../parse-bibtex.js") | ||
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require("tape")("parse-bibtex", function(t) { | ||
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var parsed = parse(bib) | ||
console.log(parsed) | ||
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t.end() | ||
}) |