Documentation - Modules
The compress module supports dynamic compression of Spyce output, and can save
bandwidth in addition to static compaction. The different forms
of compression supported are described below.
The example below shows the compression module in use.
- spaces( [ boolean ] ):
Controls dynamic space compression.
Dynamic space compression will eliminate consecutive whitespaces (spaces,
newlines and tabs) in the output stream, each time it is flushed. The optional
boolean parameter defaults to true.
- gzip( [ level ] ):
Applies gzip compression to the Spyce
output stream, but only if the browser can support gzip content encoding. Note
that this function will fail if the output stream has already been flushed,
and should generally only be used with buffered output streams. The optional
level parameter specifies the compression level, between 1 and 9
inclusive. A value of zero disables compression. If level is omitted, the
default gzip compression level is used. This function will automatically check
the request's Accept-Encoding header, and set the response's
[[.import name=compress args="gzip=1, spaces=1"]]
response.write(' Space compression will remove these spaces.<br>')
response.write(' gzip compression will highly compress this:<br>')
for i in range(1000):
Run this code
Note that the compression functions need not be called at the beginning of the
input, but before the output stream is flushed. Also, to really see what is
going on, you should telnet to your web server, and provide something like the
GET /spyce/examples/compress.spy HTTP/1.1