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closure bugs fixed

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ValKmjolnir
2021-08-17 01:18:35 +08:00
parent f07e7b52df
commit b2f09ec855
4 changed files with 366 additions and 341 deletions
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test/lexer.nas
+74 -73
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@@ -2,23 +2,23 @@ import("lib.nas");
var lexer=func(file)
{
var _={ptr:0,token:[]};
var (ptr,token)=(0,[]);
var s=io.fin(file);
var len=size(s);
return
{
jmp_note:func()
{
while(_.ptr<len and chr(s[_.ptr])!='\n')
_.ptr+=1;
_.ptr+=1;
while(ptr<len and chr(s[ptr])!='\n')
ptr+=1;
ptr+=1;
},
id_gen:func()
{
var tmp="";
while(_.ptr<len)
while(ptr<len)
{
var c=s[_.ptr];
var c=s[ptr];
if(('a'[0]<=c and c<='z'[0])
or ('A'[0]<=c and c<='Z'[0])
or ('0'[0]<=c and c<='9'[0])
@@ -26,21 +26,21 @@ var lexer=func(file)
tmp~=chr(c);
else
break;
_.ptr+=1;
ptr+=1;
}
append(_.token,tmp);
append(token,tmp);
},
str_gen:func()
{
var str="";
var mark=chr(s[_.ptr]);
_.ptr+=1;
while(_.ptr<len and chr(s[_.ptr])!=mark)
var mark=chr(s[ptr]);
ptr+=1;
while(ptr<len and chr(s[ptr])!=mark)
{
if(chr(s[_.ptr])=='\\')
if(chr(s[ptr])=='\\')
{
_.ptr+=1;
var c=chr(s[_.ptr]);
ptr+=1;
var c=chr(s[ptr]);
if (c=='a' ) str~='\a';
elsif(c=='b' ) str~='\b';
elsif(c=='f' ) str~='\f';
@@ -56,116 +56,116 @@ var lexer=func(file)
else str~=c;
}
else
str~=chr(s[_.ptr]);
_.ptr+=1;
str~=chr(s[ptr]);
ptr+=1;
}
if(_.ptr>=len)
if(ptr>=len)
print("read eof when generating string.\n");
_.ptr+=1;
append(_.token,str);
ptr+=1;
append(token,str);
},
num_gen:func()
{
var number=chr(s[_.ptr]);
_.ptr+=1;
if(_.ptr<len and chr(s[_.ptr])=='x')
var number=chr(s[ptr]);
ptr+=1;
if(ptr<len and chr(s[ptr])=='x')
{
_.ptr+=1;
while(_.ptr<len and
('a'[0]<=s[_.ptr] and s[_.ptr]<='f'[0]
or '0'[0]<=s[_.ptr] and s[_.ptr]<='9'[0]))
ptr+=1;
while(ptr<len and
('a'[0]<=s[ptr] and s[ptr]<='f'[0]
or '0'[0]<=s[ptr] and s[ptr]<='9'[0]))
{
number~=chr(s[_.ptr]);
_.ptr+=1;
number~=chr(s[ptr]);
ptr+=1;
}
append(_.token,num(number));
append(token,num(number));
return;
}
elsif(_.ptr<len and chr(s[_.ptr])=='o')
elsif(ptr<len and chr(s[ptr])=='o')
{
_.ptr+=1;
while(_.ptr<len and ('0'[0]<=s[_.ptr] and s[_.ptr]<='7'[0]))
ptr+=1;
while(ptr<len and ('0'[0]<=s[ptr] and s[ptr]<='7'[0]))
{
number~=chr(s[_.ptr]);
_.ptr+=1;
number~=chr(s[ptr]);
ptr+=1;
}
append(_.token,num(number));
append(token,num(number));
return;
}
while(_.ptr<len and ('0'[0]<=s[_.ptr] and s[_.ptr]<='9'[0]))
while(ptr<len and ('0'[0]<=s[ptr] and s[ptr]<='9'[0]))
{
number~=chr(s[_.ptr]);
_.ptr+=1;
number~=chr(s[ptr]);
ptr+=1;
}
if(_.ptr<len and chr(s[_.ptr])=='.')
if(ptr<len and chr(s[ptr])=='.')
{
number~=chr(s[_.ptr]);
_.ptr+=1;
while(_.ptr<len and ('0'[0]<=s[_.ptr] and s[_.ptr]<='9'[0]))
number~=chr(s[ptr]);
ptr+=1;
while(ptr<len and ('0'[0]<=s[ptr] and s[ptr]<='9'[0]))
{
number~=chr(s[_.ptr]);
_.ptr+=1;
number~=chr(s[ptr]);
ptr+=1;
}
}
if(chr(s[_.ptr])=='e' or chr(s[_.ptr])=='E')
if(chr(s[ptr])=='e' or chr(s[ptr])=='E')
{
number~=chr(s[_.ptr]);
_.ptr+=1;
if(chr(s[_.ptr])=='-' or chr(s[_.ptr])=='+')
number~=chr(s[ptr]);
ptr+=1;
if(chr(s[ptr])=='-' or chr(s[ptr])=='+')
{
number~=chr(s[_.ptr]);
_.ptr+=1;
number~=chr(s[ptr]);
ptr+=1;
}
while(_.ptr<len and ('0'[0]<=s[_.ptr] and s[_.ptr]<='9'[0]))
while(ptr<len and ('0'[0]<=s[ptr] and s[ptr]<='9'[0]))
{
number~=chr(s[_.ptr]);
_.ptr+=1;
number~=chr(s[ptr]);
ptr+=1;
}
}
var last_c=chr(number[-1]);
if(last_c=='.' or last_c=='e' or last_c=='E' or last_c=='-' or last_c=='+')
println("error number: ",number);
append(_.token,num(number));
append(token,num(number));
},
opr_gen:func()
{
var c=chr(s[_.ptr]);
var c=chr(s[ptr]);
if(c=='+' or c=='-' or c=='~' or c=='/' or c=='*' or c=='>' or c=='<' or c=='!' or c=='=')
{
var tmp=c;
_.ptr+=1;
if(_.ptr<len and chr(s[_.ptr])=='=')
ptr+=1;
if(ptr<len and chr(s[ptr])=='=')
{
tmp~=chr(s[_.ptr]);
_.ptr+=1;
tmp~=chr(s[ptr]);
ptr+=1;
}
append(_.token,tmp);
append(token,tmp);
return;
}
elsif(c=='.')
{
if(_.ptr+2<len and chr(s[_.ptr+1])=='.' and chr(s[_.ptr+2])=='.')
if(ptr+2<len and chr(s[ptr+1])=='.' and chr(s[ptr+2])=='.')
{
append(_.token,"...");
_.ptr+=3;
append(token,"...");
ptr+=3;
}
else
{
append(_.token,".");
_.ptr+=1;
append(token,".");
ptr+=1;
}
return;
}
elsif(c!=' ' and c!='\t' and c!='\n' and c!='\r' and s[_.ptr]>0)
append(_.token,c);
_.ptr+=1;
elsif(c!=' ' and c!='\t' and c!='\n' and c!='\r' and s[ptr]>0)
append(token,c);
ptr+=1;
return;
},
main:func()
{
while(_.ptr<len)
while(ptr<len)
{
var c=s[_.ptr];
var c=s[ptr];
if(c=='#'[0])
me.jmp_note();
elsif('a'[0]<=c and c<='z'[0]
@@ -181,12 +181,13 @@ var lexer=func(file)
}
return;
},
get_token:func(){return _.token;}
get_token:func(){return token;}
};
}
var nasal_lexer=lexer("test/lexer.nas");
nasal_lexer.main();
var info="";
foreach(var tok;nasal_lexer.get_token())
print(tok,' ');
println();
info~=tok~' ';
println(info);