options: Move option definitions to options.lua

scripts/genoptions.lua

@@ -0,0 +1,183 @@
+if arg[1] == '--help' then
+  print('Usage: genoptions.lua src/nvim options_file')
+  os.exit(0)
+end
+
+local nvimsrcdir = arg[1]
+local options_file = arg[2]
+
+package.path = nvimsrcdir .. '/?.lua;' .. package.path
+
+local opt_fd = io.open(options_file, 'w')
+
+local w = function(s)
+  if s:match('^    %.') then
+    opt_fd:write(s .. ',\n')
+  else
+    opt_fd:write(s .. '\n')
+  end
+end
+
+local options = require('options')
+
+cstr = options.cstr
+
+local type_flags={
+  bool='P_BOOL',
+  number='P_NUM',
+  string='P_STRING',
+}
+
+local redraw_flags={
+  statuslines='P_RSTAT',
+  current_window='P_RWIN',
+  current_buffer='P_RBUF',
+  all_windows='P_RALL',
+  everything='P_RCLR',
+  curswant='P_CURSWANT',
+}
+
+local list_flags={
+  comma='P_COMMA',
+  flags='P_FLAGLIST',
+  flagscomma='P_COMMA|P_FLAGLIST',
+}
+
+local get_flags = function(o)
+  local ret = {type_flags[o.type]}
+  local add_flag = function(f)
+    ret[1] = ret[1] .. '|' .. f
+  end
+  if o.list then
+    add_flag(list_flags[o.list])
+  end
+  if o.redraw then
+    for _, r_flag in ipairs(o.redraw) do
+      add_flag(redraw_flags[r_flag])
+    end
+  end
+  for _, flag_desc in ipairs({
+    {'alloced'},
+    {'expand'},
+    {'nodefault'},
+    {'no_mkrc'},
+    {'vi_def'},
+    {'vim'},
+    {'secure'},
+    {'gettext'},
+    {'noglob'},
+    {'normal_fname_chars', 'P_NFNAME'},
+    {'pri_mkrc'},
+    {'deny_in_modelines', 'P_NO_ML'},
+    {'deny_duplicates', 'P_NODUP'},
+  }) do
+    local key_name = flag_desc[1]
+    local def_name = flag_desc[2] or ('P_' .. key_name:upper())
+    if o[key_name] then
+      add_flag(def_name)
+    end
+  end
+  return ret[1]
+end
+
+local get_cond
+get_cond = function(c, base_string)
+  local cond_string = base_string or '#if '
+  if type(c) == 'table' then
+    cond_string = cond_string .. get_cond(c[1], '')
+    for i, subc in ipairs(c) do
+      if i > 1 then
+        cond_string = cond_string .. ' && ' .. get_cond(subc, '')
+      end
+    end
+  elseif c:sub(1, 1) == '!' then
+    cond_string = cond_string .. '!defined(' .. c:sub(2) .. ')'
+  else
+    cond_string = cond_string .. 'defined(' .. c .. ')'
+  end
+  return cond_string
+end
+
+value_dumpers = {
+  ['function']=function(v) return v() end,
+  string=cstr,
+  boolean=function(v) return v and 'true' or 'false' end,
+  number=function(v) return ('%iL'):format(v) end,
+  ['nil']=function(v) return '0L' end,
+}
+
+local get_value = function(v)
+  return '(char_u *) ' .. value_dumpers[type(v)](v)
+end
+
+local get_defaults = function(d)
+  return '{' .. get_value(d.vi) .. ', ' .. get_value(d.vim) .. '}'
+end
+
+local defines = {}
+
+local dump_option = function(i, o)
+  w('  [' .. ('%u'):format(i - 1) .. ']={')
+  w('    .fullname=' .. cstr(o.full_name))
+  if o.abbreviation then
+    w('    .shortname=' .. cstr(o.abbreviation))
+  end
+  w('    .flags=' .. get_flags(o))
+  if o.enable_if then
+    w(get_cond(o.enable_if))
+  end
+  if o.varname then
+    w('    .var=(char_u *)&' .. o.varname)
+  elseif #o.scope == 1 and o.scope[1] == 'window' then
+    w('    .var=VAR_WIN')
+  end
+  if o.enable_if then
+    w('#endif')
+  end
+  if #o.scope == 1 and o.scope[1] == 'global' then
+    w('    .indir=PV_NONE')
+  else
+    assert (#o.scope == 1 or #o.scope == 2)
+    assert (#o.scope == 1 or o.scope[1] == 'global')
+    local min_scope = o.scope[#o.scope]
+    local varname = o.pv_name or o.varname or (
+      'p_' .. (o.abbreviation or o.full_name))
+    local pv_name = (
+      'OPT_' .. min_scope:sub(1, 3):upper() .. '(' .. (
+        min_scope:sub(1, 1):upper() .. 'V_' .. varname:sub(3):upper()
+      ) .. ')'
+    )
+    if #o.scope == 2 then
+      pv_name = 'OPT_BOTH(' .. pv_name .. ')'
+    end
+    defines['PV_' .. varname:sub(3):upper()] = pv_name
+    w('    .indir=' .. pv_name)
+  end
+  if o.defaults then
+    if o.defaults.condition then
+      w(get_cond(o.defaults.condition))
+    end
+    w('    .def_val=' .. get_defaults(o.defaults.if_true))
+    if o.defaults.condition then
+      if o.defaults.if_false then
+        w('#else')
+        w('    .def_val=' .. get_defaults(o.defaults.if_false))
+      end
+      w('#endif')
+    end
+  end
+  w('  },')
+end
+
+w('static vimoption_T options[] = {')
+for i, o in ipairs(options.options) do
+  dump_option(i, o)
+end
+w('  [' .. ('%u'):format(#options.options) .. ']={.fullname=NULL}')
+w('};')
+w('')
+
+for k, v in pairs(defines) do
+  w('#define ' .. k .. ' ' .. v)
+end
+opt_fd:close()

src/nvim/CMakeLists.txt

@@ -20,10 +20,13 @@ set(GENERATED_EX_CMDS_ENUM ${GENERATED_INCLUDES_DIR}/ex_cmds_enum.generated.h)
 set(GENERATED_EX_CMDS_DEFS ${GENERATED_DIR}/ex_cmds_defs.generated.h)
 set(GENERATED_EVENTS_ENUM ${GENERATED_INCLUDES_DIR}/auevents_enum.generated.h)
 set(GENERATED_EVENTS_NAMES_MAP ${GENERATED_DIR}/auevents_name_map.generated.h)
+set(GENERATED_OPTIONS ${GENERATED_DIR}/options.generated.h)
 set(EX_CMDS_GENERATOR ${PROJECT_SOURCE_DIR}/scripts/genex_cmds.lua)
 set(EVENTS_GENERATOR ${PROJECT_SOURCE_DIR}/scripts/gen_events.lua)
+set(OPTIONS_GENERATOR ${PROJECT_SOURCE_DIR}/scripts/genoptions.lua)
 set(EVENTS_LIST_FILE ${PROJECT_SOURCE_DIR}/src/nvim/auevents.lua)
 set(EX_CMDS_DEFS_FILE ${PROJECT_SOURCE_DIR}/src/nvim/ex_cmds.lua)
+set(OPTIONS_LIST_FILE ${PROJECT_SOURCE_DIR}/src/nvim/options.lua)
 
 include_directories(${GENERATED_DIR})
 include_directories(${GENERATED_INCLUDES_DIR})
@@ -155,6 +158,7 @@ list(APPEND NEOVIM_GENERATED_SOURCES
   "${GENERATED_EX_CMDS_DEFS}"
   "${GENERATED_EVENTS_ENUM}"
   "${GENERATED_EVENTS_NAMES_MAP}"
+  "${GENERATED_OPTIONS}"
 )
 
 add_custom_command(OUTPUT ${GENERATED_EX_CMDS_ENUM} ${GENERATED_EX_CMDS_DEFS}
@@ -169,6 +173,12 @@ add_custom_command(OUTPUT ${GENERATED_EVENTS_ENUM} ${GENERATED_EVENTS_NAMES_MAP}
   DEPENDS ${EVENTS_GENERATOR} ${EVENTS_LIST_FILE}
 )
 
+add_custom_command(OUTPUT ${GENERATED_OPTIONS}
+  COMMAND ${LUA_PRG} ${OPTIONS_GENERATOR}
+                     ${PROJECT_SOURCE_DIR}/src/nvim ${GENERATED_OPTIONS}
+  DEPENDS ${OPTIONS_GENERATOR} ${OPTIONS_LIST_FILE}
+)
+
 # Our dependencies come first.
 
 if (LibIntl_FOUND)