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Support mangling toplevel names

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Close #127
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Mihai Bazon
2013-03-13 09:44:06 +02:00
parent e4b078cff7
commit 9b1a40dfc3
2 changed files with 18 additions and 10 deletions
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README.md
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@@ -141,12 +141,19 @@ input files from the command line.
## Mangler options
To enable the mangler you need to pass `--mangle` (`-m`). Optionally you
can pass `-m sort=true` (we'll possibly have other flags in the future) in order
to assign shorter names to most frequently used variables. This saves a few
hundred bytes on jQuery before gzip, but the output is _bigger_ after gzip
(and seems to happen for other libraries I tried it on) therefore it's not
enabled by default.
To enable the mangler you need to pass `--mangle` (`-m`). The following
(comma-separated) options are supported:
- `sort` — to assign shorter names to most frequently used variables. This
saves a few hundred bytes on jQuery before gzip, but the output is
_bigger_ after gzip (and seems to happen for other libraries I tried it
on) therefore it's not enabled by default.
- `toplevel` — mangle names declared in the toplevel scope (disabled by
default).
- `eval` — mangle names visible in scopes where `eval` or `when` are used
(disabled by default).
When mangling is enabled but you want to prevent certain names from being
mangled, you can declare those names with `--reserved` (`-r`) — pass a