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- \' not allowed in string literals

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- \" not allowed in char literals
- replaces uses of printf with print

R=r,ken
DELTA=10  (2 added, 0 deleted, 8 changed)
OCL=14841
CL=14841
This commit is contained in:
Robert Griesemer 2008-09-04 16:59:31 -07:00
parent 2a08f29e5f
commit cae0342230
1 changed files with 10 additions and 8 deletions
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18
doc/go_spec.txt
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@ -245,7 +245,7 @@ following differences:
- Octal character escapes are always 3 digits ("\077" not "\77")
- Hexadecimal character escapes are always 2 digits ("\x07" not "\x7")
This section is precise but can be skipped on first reading. The rules are:
The rules are:
char_lit = "'" ( unicode_value | byte_value ) "'" .
unicode_value = utf8_char | little_u_value | big_u_value | escaped_char .
@ -264,6 +264,8 @@ A unicode_value takes one of four forms:
text is in UTF-8, this is the obvious translation from input
text into Unicode characters.
* The usual list of C backslash escapes: "\n", "\t", etc.
Within a character or string literal, only the corresponding quote character
is a legal escape (this is not explicitly reflected in the above syntax).
* A `little u' value, such as "\u12AB". This represents the Unicode
code point with the corresponding hexadecimal value. It always
has exactly 4 hexadecimal digits.
@ -1783,7 +1785,7 @@ or an increment or decrement statement. Therefore one may declare a loop
variable in the init statement.
for i := 0; i < 10; i++ {
printf("%d\n", i)
print(i, "\n")
}
A for statement with just a condition executes until the condition becomes
@ -1880,11 +1882,11 @@ which single communication will execute.
var c, c1, c2 *chan int;
select {
case i1 <-c1:
printf("received %d from c1\n", i1);
print("received ", i1, " from c1\n");
case c2 -< i2:
printf("sent %d to c2\n", i2);
print("sent ", i2, " to c2\n");
default:
printf("no communication\n");
print("no communication\n");
}
for { // send random sequence of bits to c
@ -1899,9 +1901,9 @@ which single communication will execute.
var f float;
select {
case i <- ca:
printf("received int %d from ca\n", i);
print("received int ", i, " from ca\n");
case f <- ca:
printf("received float %f from ca\n", f);
print("received float ", f, " from ca\n");
}
TODO: do we allow case i := <-c: ?
@ -2306,7 +2308,7 @@ Here is a complete example Go package that implements a concurrent prime sieve:
go Generate(ch); // Start Generate() as a subprocess.
for {
prime := <-ch;
printf("%d\n", prime);
print(prime, "\n");
ch1 := new(chan int);
go Filter(ch, ch1, prime);
ch = ch1