Keep track of constant subexpressions and use it avoid building
multipart constant strings on the workspace, when the C-compiler
will happily build them for us at compile time.



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Use it for Expressions



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that cause them, rather than try to patch all the indentation
warnings they cause wherever they are used.



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Remove some debugging that snug into last commit



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the thrad workspace.

Fix multiplication.

Cleanup indentation in C-source output




git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@5134 d4fa192b-c00b-0410-8231-f00ffab90ce4

Get precedence of the implicit cast to STRING right.



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For now we assemble the string in the worker threads workspace.

I will reintroduce the optimization to pass it to VRT uncollected
where appropriate, once I get the new expression system pushed through.

Add a hacked up "regsub" function call for now, once functions gets
introduced it should be treated like any other function.

Add "true", "false" BOOL constants, REAL constants

Move the "set" statement over to the new expressions.

Fix testcases to use new string concat syntax where applicable.

"set req.url = 1;" was impossible before, now it works.


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the way we learned to do it back in the 1950'ies.

Until now, VCC has used sort of a massaged C-expression and with
the introduction of things like regexp matching and ACLs that turned
sort of ugly.

This code is classic recursive expression parsing with a couple of
twists:

1. We don't build a tree, because we are not going to optimize stuff,
   we leave that to the C compiler.

2. Instead of the tree we build a string with magic markers that
   let us get the indentation of the produced C code right anyway.

3. We do type-hinted parsing, in an attempt to produce intelligent
   error messages and sensible semantics.

This code passes all testcases with a single change:  We can now
compile "if (2 == 3)".  This is probably a good thing (?)

Beware of bugs...




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two (IPv4/6) available sockets.  In this case, writing the :0 into
the VSM will not tell varnishadm where to look.

Write the actual socket addresses, one per line instead, and have
varnishadm try them all.

Make -n mutually exclusive with -S and -T on varnishadm.



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as a socketaddr.



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	IP# <space> PORT#

Explain why.



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as a default, if the host argument does not specify a port.

Elminate most separate calls to VSS_parse()

Make it possible to specify address and port of backends in VCL using
only the .host field.



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have to kill the child:  We cannot get the CLI pipes back in sync,
even if the child process was just preoccupied with something for 
much longer than cli_timeout.

Fixes: #744



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Fixes: #758



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Usage: cd bin/varnishtest/; make -f Makefile.kristian -j20



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The embedded dot claimed obj.* was available in vcl_fetch, something
it's not.  Fix this.

Thanks to Yves Hwang for spotting this.


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Spotted by: pprocacci  (Thanks!)

Fixes: #752



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the transfer failed before we received anything.

Fixes: #749



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