dollar.exp revision 1.1 1
2 Printing dollar from literals and variables
3
4 To survive the parser, a dollar character must be doubled.
5 1 dollar literal => <\>
6 2 dollar literal => <$>
7 4 dollar literal => <$$>
8 Some hungry part of make eats all the dollars after a :U modifier.
9 1 dollar default => <>
10 2 dollar default => <>
11 4 dollar default => <>
12 This works as expected.
13 1 dollar variable => <>
14 2 dollar variable => <$>
15 4 dollar variable => <$$>
16 Some hungry part of make eats all the dollars after a :U modifier.
17 1 dollar var-default => <>
18 2 dollar var-default => <>
19 4 dollar var-default => <>
20
21 Dollar in :S pattern
22
23 S,$,word, => <$XYword>
24 S,$X,word, => <$XY>
25 S,$$X,word, => <$XY>
26 S,$$$X,word, => <$XY>
27 S,$X,replaced, => <replaced>
28 S,$$X,replaced, => <replaced>
29 S,$$$X,replaced, => <replaced>
30
31 Dollar in :C character class
32
33 The A is replaced because the $$ is reduced to a single $,
34 which is then resolved to the variable X with the value VAR_X.
35 The effective character class becomes [VAR_XY].
36 C,[$XY],<&>,g => <$<A><X><Y>>
37
38 Dollar in :C pattern
39
40 For some reason, multiple dollars are folded into one.
41 C,$,word, => <>
42 C,$$,word, => <>
43
44 Dollar in :S replacement
45
46 For some reason, multiple dollars are folded into one.
47 S,word,a$Xo, => <aVAR_Xo>
48 S,word,a$$Xo, => <aVAR_Xo>
49 S,word,a$$$Xo, => <aVAR_Xo>
50 exit status 0
51