1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
var example_based=[];
/*
-- cat lincat fun lin fun cat cat
environ :: ([(CId, CId)],[(CId, Expr)],[((CId, CId), [CId])]) -> Environ
*/
function exb_state(g,ci) {
var conc=g.concretes[ci]
function show_list(show1,xs) {
return "["+map(show1,xs).join(",")+"]";
}
function show_fun(fun) {
var t=fun.type
var res=t[t.length-1]
var args=t.slice(0,length-1);
return "(("+fun.name+","+res+"),["+args.join(",")+"])"
}
function show_lincat(lincat) {
return "("+lincat.cat+","+lincat.type+")"
}
function show_lin(lin) {
return "("+lin.fun+","+(lin.eb_lin||"?")+")"
}
function show_funs(funs) { return show_list(show_fun,funs) }
function show_lincats(lincats) { return show_list(show_lincat,lincats); }
function show_lins(lins) { return show_list(show_lin,lins) }
return "("+show_lincats(conc.lincats)
+","+show_lins(conc.lins)
+","+show_funs(g.abstract.funs)+")"
}
function exb_call(g,ci,command,args,cont) {
var url=window.exb_url || "exb/exb.fcgi";
var q=encodeArgs(args);
var cmd="?command="+command+"&state="+encodeURIComponent(exb_state(g,ci))+q;
http_get_json(url+cmd,cont)
}
function ask_possibilities(g,ci) {
var conc=g.concretes[ci];
function show_poss(poss) {
//debug("possibilities: "+JSON.stringify(poss))
var exready={}
for(var i in poss[0]) exready[poss[0][i]]=true;
var testable={}
for(var i in poss[1]) testable[poss[1][i]]=true;
example_based[ci]={exready:exready,testable:testable}
conc.example_based=true;
if(!conc.example_lang) conc.example_lang=g.concretes[0].langcode;
reload_grammar(g);
}
var exci=conc_index(g,conc.example_lang);
if(!conc.example_lang || !exci)
conc.example_lang=g.concretes[ci==0 ? 1 : 0].langcode;
var exci=conc_index(g,conc.example_lang);
exb_call(g,ci,"possibilities",{example_state:exb_state(g,exci)},show_poss)
}
var parser = { Eng: "ParseEngAbs.pgf",
Swe: "ParseSwe.pgf"
}
function exb_extra(g,ci) {
var conc=g.concretes[ci];
function stop_exb() {
conc.example_based=false;
reload_grammar(g);
}
function exblangmenu() {
function opt(conc) {
return option(concname(conc.langcode),conc.langcode);
}
function skip_target(c) { return c.langcode!=conc.langcode; }
var m =node("select",{},map(opt,filter(skip_target,g.concretes)));
if(conc.example_lang) m.value=conc.example_lang;
m.onchange=function() { conc.example_lang=m.value; save_grammar(g); }
return m
}
function ask_poss() { ask_possibilities(g,ci) }
if(navigator.onLine && g.concretes.length>1 && conc.example_based && !example_based[ci]) ask_poss();
var sb=button("Start",ask_poss)
if(parser[conc.langcode] && g.concretes.length>1)
return indent([wrap("small",text("Example-based editing: ")),
conc.example_based
? node("span",{},
[button("Stop",stop_exb),
wrap("small",text(" Example language: ")),
exblangmenu()
])
: sb])
else {
sb.disabled=true;
var why= g.concretes.length>1
? " ("+concname(conc.langcode)+" is not supported yet)"
: " (Add another language to take examples from first.)"
return indent([unimportant("Example-based editing: "), sb,
unimportant(why)])
}
}
function fun_lincat(g,conc,fun) {
var t=function_type(g,fun);
var abscat=t[t.length-1]
return cat_lincat(conc,abscat)
}
function exb_linbuttons(g,ci,f) {
var conc=g.concretes[ci];
var fun=f.fun;
var eb=example_based[ci];
var exb_output;
function fill_example(maybetree) {
var tree=maybetree.Just
if(tree) {
if(f.template)
conc.lins.push({fun:f.fun,args:f.args,
lin:tree[0],eb_lin:tree[1]});
else {
f.lin=tree[0];
f.eb_lin=tree[1];
}
ask_possibilities(g,ci)
}
else exb_output.innerHTML="Bug: no tree found"
}
function show_example(example){
exb_output.innerHTML="";
var s=prompt(example[1]);
if(s) {
var cat=fun_lincat(g,conc,fun)
exb_output.innerHTML="...";
//server.parse({from:"ParseEng",cat:cat,input:s},fill_example)
exb_call(g,ci,"abstract_example",
{cat:cat,input:s,
parser:parser[conc.langcode],
params:"["+f.args.join(",")+"]",
"abstract":example[0]},
fill_example)
}
}
function by_example() {
var dir=local.get("dir")
if(dir) {
if(exb_output) {
exb_output.innerHTML="...";
exb_call(g,ci,"provide_example",
{lang:g.basename+conc.example_lang,
parser:parser[conc.langcode],
fun:fun,
grammar:dir+"/"+g.basename+".pgf"},
show_example)
}
}
else exb_output.innerHTML="Compile the grammar first!"
}
function show_test(txt) {
exb_output.innerHTML="";
exb_output.appendChild(text(txt))
}
function test_it(b) {
if(exb_output) {
exb_output.innerHTML="...";
exb_call(g,ci,"test_function",
{fun:fun,parser:parser[conc.langcode]},
show_test)
}
}
var buttons=[];
if(conc.example_based && eb) {
if(f.template) {
var byex=button("By example",by_example);
if(!(eb.exready[fun] && fun_lincat(g,conc,fun)))
byex.disabled=true
buttons.push(byex)
}
else {
var b=button("Test it",test_it);
if(!eb.testable[fun] || !f.eb_lin) b.disabled=true;
buttons.push(b)
}
var exb_output=node("span",{"class":"exb_output"},[]);
buttons.push(exb_output)
}
return node("span",{"class":"exb_linbuttons"},buttons)
}
|
