Convert old pre-category layouts to new categorized layouts.

Unfortunately, this doesn't quite work the way one might like. It
is fine for manually converting one's own layouts to the new format,
but it doesn't work if you just start LyX, since the category info
is written at configuration time, not at run time, and chkconfig.ltx
does not run layout2layout.

lib/scripts/layout2layout.py

@@ -242,6 +242,12 @@ def convert(lines):
     re_QInsetLayout2 = re.compile(r'^\s*InsetLayout\s+"([^"]+)"\s*$', re.IGNORECASE)
     re_IsFlex = re.compile(r'\s*LyXType.*$', re.IGNORECASE)
     re_CopyStyle2 = re.compile(r'(\s*CopyStyle\s+)"?([^"]+)"?\s*$')
+    # for categories
+    re_Declaration = re.compile(r'^#\s*\\Declare\w+Class.*$')
+    re_ExtractCategory = re.compile(r'^(#\s*\\Declare\w+Class(?:\[[^]]*?\])?){([^(]+?)\s+\(([^)]+?)\)\s*}\s*$')
+    ConvDict = {"article": "Articles", "book" : "Books", "letter" : "Letters", "report": "Reports", \
+                "presentation" : "Presentations", "curriculum vitae" : "Curricula Vitae", "handout" : "Handouts"}
+
 
     # counters for sectioning styles (hardcoded in 1.3)
     counters = {"part"          : "\\Roman{part}",
@@ -290,8 +296,10 @@ def convert(lines):
     flexstyles = []
 
     while i < len(lines):
-        # Skip comments and empty lines
-        if re_Comment.match(lines[i]) or re_Empty.match(lines[i]):
+        # Skip comments and empty lines, but not if it's the declaration 
+        # line (we'll deal with it below)
+        if (re_Comment.match(lines[i]) or re_Empty.match(lines[i])) \
+          and not re_Declaration.match(lines[i]):
             i += 1
             continue
 
@@ -332,13 +340,22 @@ def convert(lines):
             continue
 
         if format == 39:
-          # something more substantil will be inserted here shortly
-          i += 1
-          continue
+            match = re_ExtractCategory.match(lines[i])
+            if match:
+                lpre = match.group(1)
+                lcat = match.group(2)
+                lnam = match.group(3)
+                if lcat in ConvDict:
+                    lcat = ConvDict[lcat]
+                lines[i] = lpre + "{" + lnam + "}"
+                lines.insert(i+1, "#  \\DeclareCategory{" + lcat + "}")
+                i += 1 
+            i += 1
+            continue
 
         if format == 37 or format == 38:
-          i += 1
-          continue
+            i += 1
+            continue
 
         if format == 36:
             match = re_CiteFormat.match(lines[i]);