[tor-commits] [tor/master] Fix torrc-format documentation corner cases

[nickm@xxxxxxxxxxxxxx]

commit 9c27f56cd9537d46c8d3acebf3ef37ff43b5c03b
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Tue Sep 12 16:32:56 2017 -0400

    Fix torrc-format documentation corner cases
    
    We don't require that the final line be terminated, and we open
    windows torrc files in text mode.
    
    Closes ticket 22795.
---
 doc/torrc_format.txt | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/doc/torrc_format.txt b/doc/torrc_format.txt
index b175b9fb1..7a4a92a66 100644
--- a/doc/torrc_format.txt
+++ b/doc/torrc_format.txt
@@ -18,9 +18,10 @@ does, not what it should do.
    ; specified in RFC5234.
 
    ; A file is interpreted as every Entry in the file, in order.
-   TorrcFile = *Line
+   TorrcFile = *Line [ UnterminatedLine ]
 
-   Line = BlankLine / Entry
+   Line = BlankLine LF / Entry LF
+   UnterminatedLine = BlankLine / Entry
 
    BlankLine =  *WSP OptComment LF
    BlankLine =/ *WSP LF
@@ -69,6 +70,12 @@ does, not what it should do.
    ; Anything besides NUL and LF
    NonLF = %x01-%x09 / %x0b - %xff
 
+   ; Note that on windows, we open our configuration files in "text" mode,
+   ; which causes CRLF pairs to be interpreted as LF.  So, on windows:
+   ;         LF = [ %x0d ] %x0a
+   ; but everywhere else,
+   LF = %0x0a
+
    OCTDIG = '0' - '7'
 
    KC = Any character except an isspace() character or '#' or NUL

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