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() ");
76 print(ts.lookTok(0).toString());
77 print(ts.lookTok(1).toString());
78 print(ts.lookTok(1,true).toString());
79 // if next is not ';' -> make it so...
80 // although this var a=function(){},v,c; causes
81 if (ts.lookTok(1).data != ';' && ts.lookTok(1).data != '}' && ts.lookTok(1,true).name == "NEWLINE") {
82 ts.look(0).outData = ts.look(0).data+";";
88 // next item is a name..
89 if ((ts.lookTok(1).type == 'NAME' || ts.lookTok(1).type == 'KEYW' ) && ts.look(1,true).name == "NEWLINE") {
91 ts.look(0).outData = ts.look(0).data+"\n";
93 // method call followed by name..
94 if (ts.lookTok(1).data == "(") {
98 // although this var a=function(){},v,c; causes
100 if (ts.lookTok(1).type == 'NAME' && ts.look(1,true).name == "NEWLINE") {
102 ts.look(0).outData = ts.look(0).data+"\n";
110 // function a () { ... };
112 if (ts.look(-1).isTypeN(Script.TOKfunction) && ts.look(1).isTypeN(Script.TOKlparen)) {
114 //println("got = function() ");
117 ts.balance("lparen");
118 ts.balance("lbrace");
119 // if next is not ';' -> make it so...
120 // although this var a=function(){},v,c; causes
121 if (!ts.look(1).isData(';') && !ts.look(1).isData('}') && ts.look(1,true).isLineBreak()) {
122 ts.cur().outData = ts.cur().data+";";
132 if (ts.lookTok(1).data == '=' && ts.lookTok(2).data == '{') {
134 //println("----------*** 3 *** --------------");
137 if (!ts.balance("{") ){
139 print(">>>>>>>>>>>>>>>>>HERE>>>>>>>>>>>>");
142 throw "could not find end lbrace!!!";
144 // if next is not ';' -> make it so...
145 print(ts.lookTok(1).toString());
146 print(ts.lookTok(1,true).toString());
147 if (ts.lookTok(1).data != ';' && ts.lookTok(1).data != '}' && ts.look(1,true).name=="NEWLINE") {
148 ts.look(0).outData = ts.look(0).data +";";
156 // a = function(....) { }
163 //println("got Token: " + tok.type);
167 switch(tok.data.toUpperCase()) {
168 // things that need space appending
172 // if next item is a identifier..
173 if (ts.lookTok(1).type == "NAME" || ts.lookTok(1).data.match(/^[a-z]+$/i) ) { // as include is a keyword for us!!
174 tok.outData = tok.data + " ";
179 case "RETURN": // if next item is not a semi; (or }
180 if (ts.lookTok(1).data == ';' || ts.lookTok(1).data == '}') {
183 tok.outData = tok.data + " ";
188 case "ELSE": // if next item is not a semi; (or }
189 if (!ts.lookTok(1).name == "IF") {
193 tok.outData = tok.data + " ";
196 case "++": // if previous was a plus or next is a + add a space..
197 case "--": // if previous was a - or next is a - add a space..
199 var p = (tok.data == "--" ? '-' : '+');
201 if (ts.lookTok(1).data == p) {
202 tok.outData = tok.data + " ";
204 if (ts.lookTok(-1).data == p) {
205 tok.outData = " " + tok.data;
210 case "IN": // before and after??
213 tok.outData = " " + tok.data + " ";
216 case "VAR": // always after..
223 tok.outData = tok.data + " ";
227 case "TYPEOF": // what about typeof(
228 if (ts.lookTok(1).data != '(') {
229 tok.outData = tok.data + " ";
233 //remove semicolon before brace --
234 //if(ts.look(1).isTypeN(Script.TOKrbrace)) {
246 // NOW OUTPUT THE THING.
247 //var f = new File(minfile, File.NEW);
251 out.length = ts.slen; // prealloc.
254 var tok = ts.nextTok();
261 if (tok.type == "NAME" && tok.identifier && tok.identifier.mungedValue && tok.identifier.mungedValue.length) {
262 //f.write(tok.identifier.mungedValue);
263 out += tok.identifier.mungedValue;
267 // at this point we can apply a text translation kit...
269 if ((tok.type == 'STRN') && (tok.name== 'DOUBLE_QUOTE')) {
270 if (packer && packer.stringHandler) {
271 out += packer.stringHandler(tok);
276 out += tok.outData !== false ? tok.outData : tok.data;
278 if ((tok.outData == ';') && (out.length - outoff > 255)) {
285 // remove the last ';' !!!
286 if (out.substring(out.length-1) == ';') {
287 return out.substring(0,out.length-1);