[LyX/master] More exceptions to percent encoding

[Juergen Spitzmueller]

commit 3c83f01f1b8b76b63a8f4892bb7635817ed1e12c
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Sun Mar 10 16:37:31 2019 +0100

    More exceptions to percent encoding
    
    See #11511
---
 src/insets/InsetHyperlink.cpp |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/insets/InsetHyperlink.cpp b/src/insets/InsetHyperlink.cpp
index 07185a4..a500f7b 100644
--- a/src/insets/InsetHyperlink.cpp
+++ b/src/insets/InsetHyperlink.cpp
@@ -133,8 +133,9 @@ void InsetHyperlink::latex(otexstream & os,
        if (!url.empty()) {
                // Use URI/URL-style percent-encoded string (hexadecimal).
                // We exclude some characters that must not be transformed
-               // in hrefs (% # / : ? = &) or that we need to treat manually 
(\).
-               url = to_percent_encoding(url, from_ascii("%#\\/:?=&"));
+               // in hrefs: % # / : ? = & ! * ' ( ) ; @ + $ , [ ]
+               // or that we need to treat manually: \.
+               url = to_percent_encoding(url, 
from_ascii("%#\\/:?=&!*'();@+$,[]"));
                // We handle \ manually since \\ is valid
                for (size_t i = 0, pos;
                        (pos = url.find('\\', i)) != string::npos;