improve log and add color attrs for curses

1 files changed, 181 insertions, 0 deletions

diff --git a/xmake/core/ui/curses.lua b/xmake/core/ui/curses.lua
new file mode 100644
index 000000000..dc3ea0d06
--- /dev/null
+++ b/xmake/core/ui/curses.lua
@@ -0,0 +1,181 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you under the Apache License, Version 2.0 (the
+-- "License"); you may not use this file except in compliance
+-- with the License.  You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+-- 
+-- Copyright (C) 2015 - 2017, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        curses.lua
+--
+
+--[[ Console User Interface (cui) ]-----------------------------------------
+Author: Tiago Dionizio ([email protected])
+$Id: core.lua 18 2007-06-21 20:43:52Z tngd $
+--------------------------------------------------------------------------]]
+
+-- define module: curses
+local curses = curses or {}
+
+-- load modules
+local os  = require("base/os")
+local log = require("ui/log")
+
+-- get color from the given name
+function curses.color(name)
+        if name == 'black' then     return curses.COLOR_BLACK
+    elseif name == 'red' then       return curses.COLOR_RED
+    elseif name == 'green' then     return curses.COLOR_GREEN
+    elseif name == 'yellow' then    return curses.COLOR_YELLOW
+    elseif name == 'blue' then      return curses.COLOR_BLUE
+    elseif name == 'magenta' then   return curses.COLOR_MAGENTA
+    elseif name == 'cyan' then      return curses.COLOR_CYAN
+    elseif name == 'white' then     return curses.COLOR_WHITE
+    else                            return curses.COLOR_BLACK
+    end
+end
+
+-- get attr from the given name
+function curses.attr(name)
+        if name == 'normal' then    return curses.A_NORMAL
+    elseif name == 'standout' then  return curses.A_STANDOUT
+    elseif name == 'underline' then return curses.A_UNDERLINE
+    elseif name == 'reverse' then   return curses.A_REVERSE
+    elseif name == 'blink' then     return curses.A_BLINK
+    elseif name == 'dim' then       return curses.A_DIM
+    elseif name == 'bold' then      return curses.A_BOLD
+    elseif name == 'protect' then   return curses.A_PROTECT
+    elseif name == 'invis' then     return curses.A_INVIS
+    elseif name == 'alt' then       return curses.A_ALTCHARSET
+    else                            return curses.A_NORMAL
+    end
+end
+
+-- get acs character from the given name
+function curses.acs(name)
+        if char == 'block' then     return curses.ACS_BLOCK
+    elseif char == 'board' then     return curses.ACS_BOARD
+    elseif char == 'btee' then      return curses.ACS_BTEE
+    elseif char == 'bullet' then    return curses.ACS_BULLET
+    elseif char == 'ckboard' then   return curses.ACS_CKBOARD
+    elseif char == 'darrow' then    return curses.ACS_DARROW
+    elseif char == 'degree' then    return curses.ACS_DEGREE
+    elseif char == 'diamond' then   return curses.ACS_DIAMOND
+    elseif char == 'gequal' then    return curses.ACS_GEQUAL
+    elseif char == 'hline' then     return curses.ACS_HLINE
+    elseif char == 'lantern' then   return curses.ACS_LANTERN
+    elseif char == 'larrow' then    return curses.ACS_LARROW
+    elseif char == 'lequal' then    return curses.ACS_LEQUAL
+    elseif char == 'llcorner' then  return curses.ACS_LLCORNER
+    elseif char == 'lrcorner' then  return curses.ACS_LRCORNER
+    elseif char == 'ltee' then      return curses.ACS_LTEE
+    elseif char == 'nequal' then    return curses.ACS_NEQUAL
+    elseif char == 'pi' then        return curses.ACS_PI
+    elseif char == 'plminus' then   return curses.ACS_PLMINUS
+    elseif char == 'plus' then      return curses.ACS_PLUS
+    elseif char == 'rarrow' then    return curses.ACS_RARROW
+    elseif char == 'rtee' then      return curses.ACS_RTEE
+    elseif char == 's1' then        return curses.ACS_S1
+    elseif char == 's3' then        return curses.ACS_S3
+    elseif char == 's7' then        return curses.ACS_S7
+    elseif char == 's9' then        return curses.ACS_S9
+    elseif char == 'sterling' then  return curses.ACS_STERLING
+    elseif char == 'ttee' then      return curses.ACS_TTEE
+    elseif char == 'uarrow' then    return curses.ACS_UARROW
+    elseif char == 'ulcorner' then  return curses.ACS_ULCORNER
+    elseif char == 'urcorner' then  return curses.ACS_URCORNER
+    elseif char == 'vline' then     return curses.ACS_VLINE
+    elseif type(char) == 'string' and #char == 1 then
+        return char
+    else
+        return ' '
+    end
+end
+
+-- calculate attr from the attributes list
+--
+-- local attr = curses.calc_attr("yellow")
+-- local attr = curses.calc_attr{ curses.color_pair("yellow", "green"), 'bold' }
+--
+function curses.calc_attr(attrs)
+
+    -- curses.calc_attr(curses.A_BOLD)
+    local atype = type(attrs)
+    if atype == 'number' then
+        return attrs
+    -- curses.calc_attr("bold")
+    elseif atype == 'string' then
+        return curses.attr(attrs)
+    -- curses.calc_attr{ curses.color_pair("yellow", "green"), 'bold' }
+    elseif atype == 'table' then
+        local v = 0
+        local set = {}
+        for _, a in pairs(attrs) do --TODO ipairs?
+            if not set[a] and a then
+                set[a] = true
+                if type(a) == 'number' then
+                    v = v + a
+                else
+                    v = v + curses.attr(a)
+                end
+            end
+        end
+        return v
+    else
+        return 0
+    end
+end
+
+-- get attr from the color pair
+function curses.color_pair(fg, bg)
+
+    -- get foreground and backround color
+    fg = curses.color(fg)
+    bg = curses.color(bg)
+
+    -- attempt to get color from the cache first
+    local key = fg .. ':' .. bg
+    local colors = curses._COLORS or {}
+    if colors[key] then
+        return colors[key]
+    end
+
+    -- no colors?
+    if not curses.has_colors() then
+        return 0 
+    end
+
+    -- update the colors count
+    curses._NCOLORS = (curses._NCOLORS or 0) + 1
+
+    -- init the color pair
+    if not curses.init_pair(curses._NCOLORS, fg, bg) then
+        os.raise("failed to initialize color pair (%d, %s, %s)", curses._NCOLORS, fg, bg)
+    end
+
+    -- get the color attr
+    local attr = curses.color_pair(curses._NCOLORS)
+
+    -- save to cache
+    colors[key] = attr
+    curses._COLORS = colors
+
+    -- ok
+    return attr
+end
+
+-- return module: curses
+return curses