[LyX/master] Support protected and thin space in simple search (#12836)

[Juergen Spitzmueller]

commit f6f936e3d049c05ad0795c32696df895d8b61313
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Mon Jul 17 16:58:04 2023 +0200

    Support protected and thin space in simple search (#12836)
---
 src/Paragraph.cpp         |    2 +-
 src/insets/InsetSpace.cpp |   14 +++++++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index 025acf1..d7fa35e 100644
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -4669,7 +4669,7 @@ int Paragraph::find(docstring const & str, bool cs, bool 
mw,
                        if (!inset->isLetter() && !inset->isChar())
                                break;
                        odocstringstream os;
-                       if (inset->lyxCode() == lyx::QUOTE_CODE) {
+                       if (inset->lyxCode() == lyx::QUOTE_CODE || 
inset->lyxCode() == lyx::SPACE_CODE) {
                                OutputParams op(0);
                                op.find_set_feature(OutputParams::SearchQuick);
                                inset->plaintext(os, op);
diff --git a/src/insets/InsetSpace.cpp b/src/insets/InsetSpace.cpp
index a5b0464..14db93f 100644
--- a/src/insets/InsetSpace.cpp
+++ b/src/insets/InsetSpace.cpp
@@ -703,7 +703,7 @@ void InsetSpace::latex(otexstream & os, OutputParams const 
& runparams) const
 
 
 int InsetSpace::plaintext(odocstringstream & os,
-        OutputParams const &, size_t) const
+        OutputParams const & rp, size_t) const
 {
        switch (params_.kind) {
        case InsetSpaceParams::HFILL:
@@ -747,7 +747,11 @@ int InsetSpace::plaintext(odocstringstream & os,
                os.put(0x2003);
                return 2;
        case InsetSpaceParams::THIN:
-               os.put(0x202f);
+               if (rp.find_effective())
+                       // simple search
+                       os << ' ';
+               else
+                       os.put(0x202f);
                return 1;
        case InsetSpaceParams::MEDIUM:
                os.put(0x200b); // ZERO WIDTH SPACE, makes the unbreakable 
medium space breakable
@@ -761,7 +765,11 @@ int InsetSpace::plaintext(odocstringstream & os,
                return 1;
        case InsetSpaceParams::PROTECTED:
        case InsetSpaceParams::CUSTOM_PROTECTED:
-               os.put(0x00a0);
+               if (rp.find_effective())
+                       // simple search
+                       os << ' ';
+               else
+                       os.put(0x00a0);
                return 1;
        case InsetSpaceParams::NEGTHIN:
        case InsetSpaceParams::NEGMEDIUM:
-- 
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