1 // <script type="text/javascript">
4 * pack a javascript file, and return a shorter version!
6 * a bit picky at present with ; and crlf reading...
7 * @arg ts {TokenStream}
11 CompressWhite = function (ts, packer)
15 //var str = File.read(fn);
23 if (tok.type == "WHIT") {
28 // just spaces, not \n!
29 //if (tok.data.indexOf("\n") < 0) {
35 if (tok.data == "}") {
37 if (ts.lookTok(1).type == 'NAME' && ts.look(1,true).name == "NEWLINE") {
39 ts.look(0).outData = ts.look(0).data+"\n";
45 // add semi-colon's where linebreaks are used... - not foolproof yet.!
46 if (tok.type == "NAME") {
47 //var tokident = ts.look(-1).data + tok.data + ts.look(1).data + ts.look(2).data;
48 // a = new function() {}
49 if (ts.lookTok(1).data == '=' && ts.lookTok(2).name == 'NEW' &&
50 ts.lookTok(3).name == 'FUNCTION') {
58 // if next is not ';' -> make it so...
60 if (ts.lookTok(1).data != ';' && ts.lookTok(1).data != '}' && ts.lookTok(1,true).name == "NEWLINE") {
61 ts.look(0).outData = ts.cur().data +";";
67 // a = function() { ...
69 if (ts.lookTok(1).data == '=' && ts.lookTok(2).name == "FUNCTION") {
71 //println("got = function() ");
74 if (!ts.balance("(") ){
76 print(">>>>>>>>>>>>>>>>>HERE>>>>>>>>>>>>");
79 throw "could not find end lbrace!!!";
81 ts.dump(cu, ts.cursor+2);
83 if (!ts.balance("{") ){
85 print(">>>>>>>>>>>>>>>>>HERE>>>>>>>>>>>>");
88 throw "could not find end lbrace!!!";
90 print('FN: '+ts.tokens[cu].toString());
91 print('F1: '+ts.lookTok(1).toString());
92 print('F2: '+ts.look(1,true).toString());
94 // if next is not ';' -> make it so...
95 // although this var a=function(){},v,c; causes
96 if (ts.lookTok(1).data != ';' && ts.lookTok(1).data != '}' && ts.look(1,true).name == "NEWLINE") {
98 ts.look(0).outData = ts.look(0).data+";";
99 print("ADDING SEMI: " + ts.look(0).toString());
100 //ts.dump(cu, ts.cursor+2);
103 ts.dump(cu, ts.cursor+2);
108 // next item is a name..
109 if ((ts.lookTok(1).type == 'NAME' || ts.lookTok(1).type == 'KEYW' ) && ts.look(1,true).name == "NEWLINE") {
110 // preserve linebraek
111 ts.look(0).outData = ts.look(0).data+"\n";
113 // method call followed by name..
114 if (ts.lookTok(1).data == "(") {
118 // although this var a=function(){},v,c; causes
120 if (ts.lookTok(1).type == 'NAME' && ts.look(1,true).name == "NEWLINE") {
122 ts.look(0).outData = ts.look(0).data+"\n";
130 // function a () { ... };
132 if (ts.look(-1).isTypeN(Script.TOKfunction) && ts.look(1).isTypeN(Script.TOKlparen)) {
134 //println("got = function() ");
137 ts.balance("lparen");
138 ts.balance("lbrace");
139 // if next is not ';' -> make it so...
140 // although this var a=function(){},v,c; causes
141 if (!ts.look(1).isData(';') && !ts.look(1).isData('}') && ts.look(1,true).isLineBreak()) {
142 ts.cur().outData = ts.cur().data+";";
152 if (ts.lookTok(1).data == '=' && ts.lookTok(2).data == '{') {
154 //println("----------*** 3 *** --------------");
157 if (!ts.balance("{") ){
159 print(">>>>>>>>>>>>>>>>>HERE>>>>>>>>>>>>");
162 throw "could not find end lbrace!!!";
164 // if next is not ';' -> make it so...
166 if (ts.lookTok(1).data != ';' && ts.lookTok(1).data != '}' && ts.look(1,true).name=="NEWLINE") {
167 ts.look(0).outData = ts.look(0).data +";";
175 // a = function(....) { }
182 //println("got Token: " + tok.type);
186 switch(tok.data.toUpperCase()) {
187 // things that need space appending
191 // if next item is a identifier..
192 if (ts.lookTok(1).type == "NAME" || ts.lookTok(1).data.match(/^[a-z]+$/i) ) { // as include is a keyword for us!!
193 tok.outData = tok.data + " ";
198 case "RETURN": // if next item is not a semi; (or }
199 if (ts.lookTok(1).data == ';' || ts.lookTok(1).data == '}') {
202 tok.outData = tok.data + " ";
207 case "ELSE": // if next item is not a semi; (or }
208 if (!ts.lookTok(1).name == "IF") {
212 tok.outData = tok.data + " ";
215 case "++": // if previous was a plus or next is a + add a space..
216 case "--": // if previous was a - or next is a - add a space..
218 var p = (tok.data == "--" ? '-' : '+');
220 if (ts.lookTok(1).data == p) {
221 tok.outData = tok.data + " ";
223 if (ts.lookTok(-1).data == p) {
224 tok.outData = " " + tok.data;
229 case "IN": // before and after??
232 tok.outData = " " + tok.data + " ";
235 case "VAR": // always after..
242 tok.outData = tok.data + " ";
246 case "TYPEOF": // what about typeof(
247 if (ts.lookTok(1).data != '(') {
248 tok.outData = tok.data + " ";
252 //remove semicolon before brace --
253 //if(ts.look(1).isTypeN(Script.TOKrbrace)) {
265 // NOW OUTPUT THE THING.
266 //var f = new File(minfile, File.NEW);
270 out.length = ts.slen; // prealloc.
273 var tok = ts.nextTok();
280 if (tok.type == "NAME" && tok.identifier && tok.identifier.mungedValue && tok.identifier.mungedValue.length) {
281 //f.write(tok.identifier.mungedValue);
282 out += tok.identifier.mungedValue;
286 // at this point we can apply a text translation kit...
288 if ((tok.type == 'STRN') && (tok.name== 'DOUBLE_QUOTE')) {
289 if (packer && packer.stringHandler) {
290 out += packer.stringHandler(tok);
295 out += tok.outData !== false ? tok.outData : tok.data;
297 if ((tok.outData == ';') && (out.length - outoff > 255)) {
304 // remove the last ';' !!!
305 if (out.substring(out.length-1) == ';') {
306 return out.substring(0,out.length-1);