4 * base class for parsing segments of token array..
7 * We want to make parsing the whole thing easy..
9 * so we do various tricks:
12 * a) white space collased
15 * { } - collapse into first element.
16 ( ) - collapse into first element.
17 [ ] - collapse into first element.
18 * c) items = , seperation within the above..
20 * usage: x = new Collapse(token_array)
29 public class Collapse : TokenStream {
32 public Collapse(Gee.ArrayList<Token> tokens)
38 ar = this.collapse(this.tokens);
46 // put spaces into prefix of tokens..
50 var ar = new Gee.ArrayList<Token>()
51 var pref = new Gee.ArrayList<Token>();
55 for (var i = 0; i < this.tokens.size; i ++) {
56 var tok = this.tokens[i];
57 if (tok.is("COMM") || tok.is("WHIT")) {
66 pref = new Gee.ArrayList<Token>(); // reset pref..
80 Gee.ArrayList<Token> collapse(ar)
83 var st = new TokenStream(ar);
84 var ret = new Gee.ArrayList<Token>();
87 var tok = st.look(1,true);
89 // Seed.print(TokenStream.toString(ret));
92 // console.log(tok.data);
105 ret.push(st.next(1));
114 var start = st.cursor;
116 var add = st.balance(tok.data);
119 //console.dump(start + '...' + st.cursor);
120 //console.dump(st.tokens);
124 // add.shift(); << case sensitive ... really...
127 //Seed.print(JSON.stringify(add, null,4));
131 var toks = add ? this.collapse(add) : [];
137 if (tok.data != '{') {
138 // paramters or array elements..
139 tok.items = this.toItems(toks, [',']);
141 // check for types.. it could be a list of statements.. or object
143 var ost = new TokenStream(toks);
144 //console.dump(ost.look(2,true) );
145 if (ost.look(2,true) && ost.look(2,true).data == ":") {
146 tok.props = this.toProps(toks);
148 // list of statemetns..
149 tok.items = this.toItems(toks,[ ';', '{'] );;
161 //Seed.print(" ADD : " + add.length + " ITEMS: " + tok.items.length);
168 ret.push(st.next(1));
174 Seed.print("OOPS" + tok.type);
189 toItems : function(ar,sep)
194 for (var i = 0; i < ar.length; i ++) {
195 if (sep.indexOf(ar[i].data) < 0) {
200 if ((ar[i].data != ';') && g.length && (g[0].name == "VAR")) {;
217 toProps : function(ar)
222 var g = { key : '', val: [] }
227 for (var i = 0; i < ar.length; i ++) {
236 state =2; // should be ':'
240 if (ar[i].data != ',') {
244 g = { key : '', val: [] }
250 // last.. - if g.val.length is 0 then it's a trailing ','...
251 // we should really throw a syntax error in that case..
252 if (k.length && g.val.length) {