mirror of
https://github.com/lightbend/config.git
synced 2025-01-15 23:01:05 +08:00
test "10.0foo" path expression, and correct the spec
The spec described parsing this as a 1-element path but the implementation parsed it as 2 elements which is probably a better behavior because it's less surprising. The simple rule is now "only quoted periods are special".
This commit is contained in:
parent
9dc6f77078
commit
0bb9d19727
15
HOCON.md
15
HOCON.md
@ -290,13 +290,20 @@ substitutions. This means that you can't nest substitutions inside
|
||||
other substitutions, and you can't have substitutions in keys.
|
||||
|
||||
When concatenating the path expression, any `.` characters outside
|
||||
quoted strings or numbers are understood as path separators, while
|
||||
inside quoted strings and numbers `.` has no special meaning. So
|
||||
quoted strings are understood as path separators, while inside
|
||||
quoted strings `.` has no special meaning. So
|
||||
`foo.bar."hello.world"` would be a path with three elements,
|
||||
looking up key `foo`, key `bar`, then key `hello.world`.
|
||||
|
||||
- `10.0foo` is a number then unquoted string `foo` so this would
|
||||
be a single-element path.
|
||||
The main tricky point is that `.` characters in numbers do count
|
||||
as a path separator. When dealing with a number as part of a path
|
||||
expression, it's essential to retain the _original_ string
|
||||
representation of the number as it appeared in the file (rather
|
||||
than converting it back to a string with a generic
|
||||
number-to-string library function).
|
||||
|
||||
- `10.0foo` is a number then unquoted string `foo` and should
|
||||
be the two-element path with `10` and `0foo` as the elements.
|
||||
- `foo10.0` is an unquoted string with a `.` in it, so this would
|
||||
be a two-element path with `foo10` and `0` as the elements.
|
||||
- `foo"10.0"` is an unquoted then a quoted string which are
|
||||
|
@ -126,6 +126,13 @@ class ConfParserTest extends TestUtils {
|
||||
assertEquals(path("a_c"), parsePath("a_c"))
|
||||
assertEquals(path("-"), parsePath("\"-\""))
|
||||
|
||||
// here 10.0 is part of an unquoted string
|
||||
assertEquals(path("foo10", "0"), parsePath("foo10.0"))
|
||||
// here 10.0 is a number that gets value-concatenated
|
||||
assertEquals(path("10", "0foo"), parsePath("10.0foo"))
|
||||
// just a number
|
||||
assertEquals(path("10", "0"), parsePath("10.0"))
|
||||
|
||||
for (invalid <- Seq("", " ", " \n \n ", "a.", ".b", "a..b", "a${b}c", "\"\".", ".\"\"")) {
|
||||
try {
|
||||
intercept[ConfigException.BadPath] {
|
||||
|
Loading…
Reference in New Issue
Block a user