[LyX/master] Make max_key_size limit adjustable

[Juergen Spitzmueller]

commit 53654b430ee33f460181917a92408d360f8d93b9
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sat Jan 7 17:46:18 2017 +0100

    Make max_key_size limit adjustable
    
    This _must_ be increased for xhtml output of fullcite, else we get
    fragmentary html code.
    
    I am aware of the reason for this size limit (#8944) and have carefully
    checked that this is not affected.
---
 src/BiblioInfo.cpp |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/BiblioInfo.cpp b/src/BiblioInfo.cpp
index 51d4744..025679f 100644
--- a/src/BiblioInfo.cpp
+++ b/src/BiblioInfo.cpp
@@ -512,9 +512,10 @@ docstring BibTeXInfo::expandFormat(docstring const & 
format,
        static int const max_passes = 5000;
        // the use of overly large keys can lead to performance problems, due
        // to eventual attempts to convert LaTeX macros to unicode. See bug
-       // #8944. This is perhaps not the best solution, but it will have to
-       // do for now.
-       static size_t const max_keysize = 128;
+       // #8944. By default, the size is limited to 128 (in CiteItem), but
+       // for specific purposes (such as XHTML export), it needs to be enlarged
+       // This is perhaps not the best solution, but it will have to do for 
now.
+       size_t const max_keysize = ci.max_key_size;
        odocstringstream ret; // return value
        string key;
        bool scanning_key = false;