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| author | bors <bors@rust-lang.org> | 2014-09-04 14:50:59 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2014-09-04 14:50:59 +0000 |
| commit | 4a5a9c56319fbbf47094fb97d1171a0ed8e89239 (patch) | |
| tree | d0b072659eb2326d7efed2308c46fca4456af17c /src/libstd | |
| parent | 8d5e64f3bc2f754bed4b5a1857dd3494c5049c50 (diff) | |
| parent | 2bc4a5e92aef51bd34a5b1a506c5edcee893d6ac (diff) | |
| download | rust-4a5a9c56319fbbf47094fb97d1171a0ed8e89239.tar.gz rust-4a5a9c56319fbbf47094fb97d1171a0ed8e89239.zip | |
auto merge of #16885 : wickerwaka/rust/fmt-center, r=alexcrichton
Use '^' to specify center alignment in format strings.
```
fmt!( "[{:^5s}]", "Hi" ) -> "[ Hi ]"
fmt!( "[{:^5s}]", "H" ) -> "[ H ]"
fmt!( "[{:^5d}]", 1i ) -> "[ 1 ]"
fmt!( "[{:^5d}]", -1i ) -> "[ -1 ]"
fmt!( "[{:^6d}]", 1i ) -> "[ 1 ]"
fmt!( "[{:^6d}]", -1i ) -> "[ -1 ]"
```
If the padding is odd then the padding on the right will be one
character longer than the padding on the left.
Diffstat (limited to 'src/libstd')
| -rw-r--r-- | src/libstd/fmt.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libstd/fmt.rs b/src/libstd/fmt.rs index 841567a9120..f69f94c4db6 100644 --- a/src/libstd/fmt.rs +++ b/src/libstd/fmt.rs @@ -333,7 +333,7 @@ argument := integer | identifier format_spec := [[fill]align][sign]['#'][0][width]['.' precision][type] fill := character -align := '<' | '>' +align := '<' | '^' | '>' sign := '+' | '-' width := count precision := count | '*' @@ -357,6 +357,7 @@ parameter. This indicates that if the value being formatted is smaller than are specified by `fill`, and the alignment can be one of two options: * `<` - the argument is left-aligned in `width` columns +* `^` - the argument is center-aligned in `width` columns * `>` - the argument is right-aligned in `width` columns ### Sign/#/0 |