xref: /netbsd-src/tests/usr.bin/indent/lex_ident.c (revision 7d62b00eb9ad855ffcd7da46b41e23feb5476fac)
1 /* $NetBSD: lex_ident.c,v 1.5 2022/04/24 09:04:12 rillig Exp $ */
2 
3 /*
4  * Test lexing of word-like tokens, such as keywords, identifiers, numeric
5  * constants, character constants, string literals.
6  */
7 
8 /*
9  * Conceptually, backslash-newline is replaced with nothing, in a very early
10  * stage of the translation, see C11 5.1.1.2p1, item 2. Indent does not
11  * preserve these; in most cases, they are simply removed.
12  */
13 //indent input
14 in\
15 t \
16 var\
17 iable;
18 
19 int
20 	no_backslash;
21 
22 /* $ See check_size_token. */
23 /* $ The default buffer size is 200, the limit is 195. */
24 struct long_tag_name_to_overflow_the_token_buffer_4567890\
25 12345678901234567890123456789012345678901234567890\
26 12345678901234567890123456789012345678901234567890\
27 12345678901234567890123456789012345678901234567890;
28 
29 /* $ See check_size_token. */
30 /* $ The difference between limit and start got incremented to 595. */
31 struct long_tag_name_to_overflow_the_token_buffer_4567890\
32 12345678901234567890123456789012345678901234567890\
33 12345678901234567890123456789012345678901234567890\
34 12345678901234567890123456789012345678901234567890\
35 12345678901234567890123456789012345678901234567890\
36 12345678901234567890123456789012345678901234567890\
37 12345678901234567890123456789012345678901234567890\
38 12345678901234567890123456789012345678901234567890\
39 12345678901234567890123456789012345678901234567890\
40 12345678901234567890123456789012345678901234567890\
41 12345678901234567890123456789012345678901234567890\
42 12345678901234567890123456789012345678901234567890;
43 //indent end
44 
45 //indent run
46 /* $ XXX: The indentation of the backslash is one short of a tab. */
47 int	       \
48 		variable;
49 
50 int
51 		no_backslash;
52 
53 struct long_tag_name_to_overflow_the_token_buffer_4567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890;
54 
55 struct long_tag_name_to_overflow_the_token_buffer_45678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890;
56 //indent end
57 
58 
59 /* This is a syntax error; see lex_word. */
60 //indent input
61 int identifier\n;
62 //indent end
63 
64 //indent run
65 int		identifier \ n;
66 //indent end
67