[PATCH] examples/cgit-commit-filter: improve quoted text handling

[Eric Wong]

With an example such as:

        something before "quoted phrase" something after

The Xapian will now see:

        [ "something before", "quoted phrase", "something after" ]

whereas before it would see:

        [ "something before", "quoted", "phrase", "something after" ]

which should improve search results accuracy when looking
up commits by commit title (subject).
---
 examples/cgit-commit-filter.lua | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/cgit-commit-filter.lua b/examples/cgit-commit-filter.lua
index 8f9d3eb5..9614c944 100644
--- a/examples/cgit-commit-filter.lua
+++ b/examples/cgit-commit-filter.lua
@@ -32,7 +32,8 @@ function filter_close()
                        html(buffer)
                else
                        html('<a href="' .. u .. '?x=t&amp;q=')
-                       html_url_arg('"' .. buffer .. '"')
+                       s = string.gsub(buffer, '"', '""')
+                       html_url_arg('"' .. s .. '"')
                        html('"><tt>')
                        html_txt(buffer)
                        html('</tt></a>')
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