[LyX/2.3.x] Speed up convert_literalparam. Part of #11200.

[Richard Kimberly Heck]

commit 7bc7b8f422db07ecb39322e65d583da75ffbf05d
Author: Richard Kimberly Heck <rikih...@lyx.org>
Date:   Sat Jul 21 22:49:49 2018 -0400

    Speed up convert_literalparam. Part of #11200.
    
    (cherry picked from commit 4549f46a431021d6667451ab83965eca12d58f58)
---
 lib/lyx2lyx/lyx_2_3.py |   41 +++++++++++++++++++++++------------------
 status.23x             |    5 +++++
 2 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/lib/lyx2lyx/lyx_2_3.py b/lib/lyx2lyx/lyx_2_3.py
index 9a39568..d6b3170 100644
--- a/lib/lyx2lyx/lyx_2_3.py
+++ b/lib/lyx2lyx/lyx_2_3.py
@@ -1551,24 +1551,29 @@ command_insets = ["bibitem", "citation", "href", 
"index_print", "nomenclature"]
 def convert_literalparam(document):
     " Add param literal "
 
-    for inset in command_insets:
-        i = 0
-        while True:
-            i = find_token(document.body, '\\begin_inset CommandInset %s' % 
inset, i)
-            if i == -1:
-                break
-            j = find_end_of_inset(document.body, i)
-            if j == -1:
-                document.warning("Malformed LyX document: Can't find end of %s 
inset at line %d" % (inset, i))
-                i += 1
-                continue
-            while i < j and document.body[i].strip() != '':
-                i += 1
-            # href is already fully latexified. Here we can switch off literal.
-            if inset == "href":
-                document.body.insert(i, "literal \"false\"")
-            else:
-                document.body.insert(i, "literal \"true\"")
+    pos = len("\\begin_inset CommandInset ")
+    i = 0
+    while True:
+        i = find_token(document.body, '\\begin_inset CommandInset', i)
+        if i == -1:
+            break
+        inset = document.body[i][pos:].strip()
+        if not inset in command_insets:
+            i += 1
+            continue
+        j = find_end_of_inset(document.body, i)
+        if j == -1:
+            document.warning("Malformed LyX document: Can't find end of %s 
inset at line %d" % (inset, i))
+            i += 1
+            continue
+        while i < j and document.body[i].strip() != '':
+            i += 1
+        # href is already fully latexified. Here we can switch off literal.
+        if inset == "href":
+            document.body.insert(i, "literal \"false\"")
+        else:
+            document.body.insert(i, "literal \"true\"")
+        i = j + 1
 
 
 
diff --git a/status.23x b/status.23x
index ba917af..36335ab 100644
--- a/status.23x
+++ b/status.23x
@@ -63,6 +63,11 @@ What's new
 
 
 
+* LYX2LYX
+
+- Speed up some lyx2lyx conversions (bug 11200).
+
+
 * TEX2LYX