Unrecognized escape in character string results in crash (Windows only)

[stepelu]

Executing via Rserve the command:

try(eval(parse(text="setwd('Z:\sp\Dropbox\Prj\scilua\head')")),silent=TRUE)

results in a crash of Rserve(_d).exe due to the erroneous string escape:

C:\Users\sp\Documents\R\win-library\3.1\Rserve\libs\x64>Rserve_d.exe
Rserve 1.7-3 () (C)Copyright 2002-2013 Simon Urbanek
$Id$

Loading config file Rserv.cfg
Failed to find config file Rserv.cfg
Rserve: Ok, ready to answer queries.
 - create_server(port = 6311, socket = <NULL>, mode = 0, flags = 0x4000)
INFO: adding server 0000000000509A00 (total 1 servers)
INFO: accepted connection for server 0000000000509A00, calling connected
connection accepted.
sending ID string.

header read result: 16
DUMP [16]: 03 00 00 00 4f 00 00 00 00 00 00 00 00 00 00 00  |....O...........
loading buffer (awaiting 79 bytes)
parsing parameters (buf=0000000000519EA0, len=79)
DUMP [79]: 04 4b 00 00 74 72 79 28 65 76 61 6c 28 70 61 72 73 65 28 74 65 78 74 3d 22 73 65 74 77 64 28 27 5a 3a 5c 73 70 5c 44 72 6f 70 62 6f 78 5c 50 72 6a 5c 73 63 69 6c 75 61 5
c 68 65 61 64 27 29 22 29 29 2c 73 69 6c 65 6e 74 3d 54 52 55 45 29  |.K..try(eval(parse(text="setwd('Z:\sp\Dropbox\Prj\scilua\head')")),silent=TRUE)
PAR[0]: 0000004f (PAR_LEN=75, PAR_TYPE=4, large=no, c=0000000000519EA0, ptr=0000000000519EA4)
CMD=00000003, pars=1
parseString("try(eval(parse(text="setwd('Z:\sp\Dropbox\Prj\scilua\head')")),silent=TRUE)")
Error: '\s' is an unrecognized escape in character string starting ""setwd('Z:\s"

C:\Users\sp\Documents\R\win-library\3.1\Rserve\libs\x64>

On Linux and OSX Rserve shows the error but survives.

[s-u]

See FAQ How can I prevent exit on error?

http://rforge.net/Rserve/faq.html#exit