X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/36f6233fd79390ad5af8a1532eac60a0ae57c825..f938afb8ab4cb091d12e0ef0311eaea14b774798:/platforma/static/js/lib/codemirror/stringstream.js diff --git a/platforma/static/js/lib/codemirror/stringstream.js b/platforma/static/js/lib/codemirror/stringstream.js deleted file mode 100644 index 8c1c0422..00000000 --- a/platforma/static/js/lib/codemirror/stringstream.js +++ /dev/null @@ -1,140 +0,0 @@ -/* String streams are the things fed to parsers (which can feed them - * to a tokenizer if they want). They provide peek and next methods - * for looking at the current character (next 'consumes' this - * character, peek does not), and a get method for retrieving all the - * text that was consumed since the last time get was called. - * - * An easy mistake to make is to let a StopIteration exception finish - * the token stream while there are still characters pending in the - * string stream (hitting the end of the buffer while parsing a - * token). To make it easier to detect such errors, the stringstreams - * throw an exception when this happens. - */ - -// Make a stringstream stream out of an iterator that returns strings. -// This is applied to the result of traverseDOM (see codemirror.js), -// and the resulting stream is fed to the parser. -window.stringStream = function(source){ - // String that's currently being iterated over. - var current = ""; - // Position in that string. - var pos = 0; - // Accumulator for strings that have been iterated over but not - // get()-ed yet. - var accum = ""; - // Make sure there are more characters ready, or throw - // StopIteration. - function ensureChars() { - while (pos == current.length) { - accum += current; - current = ""; // In case source.next() throws - pos = 0; - try {current = source.next();} - catch (e) { - if (e != StopIteration) throw e; - else return false; - } - } - return true; - } - - return { - // Return the next character in the stream. - peek: function() { - if (!ensureChars()) return null; - return current.charAt(pos); - }, - // Get the next character, throw StopIteration if at end, check - // for unused content. - next: function() { - if (!ensureChars()) { - if (accum.length > 0) - throw "End of stringstream reached without emptying buffer ('" + accum + "')."; - else - throw StopIteration; - } - return current.charAt(pos++); - }, - // Return the characters iterated over since the last call to - // .get(). - get: function() { - var temp = accum; - accum = ""; - if (pos > 0){ - temp += current.slice(0, pos); - current = current.slice(pos); - pos = 0; - } - return temp; - }, - // Push a string back into the stream. - push: function(str) { - current = current.slice(0, pos) + str + current.slice(pos); - }, - lookAhead: function(str, consume, skipSpaces, caseInsensitive) { - function cased(str) {return caseInsensitive ? str.toLowerCase() : str;} - str = cased(str); - var found = false; - - var _accum = accum, _pos = pos; - if (skipSpaces) this.nextWhileMatches(/[\s\u00a0]/); - - while (true) { - var end = pos + str.length, left = current.length - pos; - if (end <= current.length) { - found = str == cased(current.slice(pos, end)); - pos = end; - break; - } - else if (str.slice(0, left) == cased(current.slice(pos))) { - accum += current; current = ""; - try {current = source.next();} - catch (e) {break;} - pos = 0; - str = str.slice(left); - } - else { - break; - } - } - - if (!(found && consume)) { - current = accum.slice(_accum.length) + current; - pos = _pos; - accum = _accum; - } - - return found; - }, - - // Utils built on top of the above - more: function() { - return this.peek() !== null; - }, - applies: function(test) { - var next = this.peek(); - return (next !== null && test(next)); - }, - nextWhile: function(test) { - var next; - while ((next = this.peek()) !== null && test(next)) - this.next(); - }, - matches: function(re) { - var next = this.peek(); - return (next !== null && re.test(next)); - }, - nextWhileMatches: function(re) { - var next; - while ((next = this.peek()) !== null && re.test(next)) - this.next(); - }, - equals: function(ch) { - return ch === this.peek(); - }, - endOfLine: function() { - var next = this.peek(); - return next == null || next == "\n"; - } - }; -};