- Updated and changed a lot: strings, //-comments and {..}-comments working
- Added local function flush_whatever to handle spaces/tabs properly
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1a58b65f42
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192
pret-pas.lua
192
pret-pas.lua
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@ -64,7 +64,7 @@ local states = {
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local function flush_pas_word(word)
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if word then
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local id = known_words[word]
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local id = known_words[string.lower(word)]
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if id then
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tex.sprint(tex.ctxcatcodes, "\{\\bf ")
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tex.write(word)
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@ -75,6 +75,23 @@ local function flush_pas_word(word)
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end
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end
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local function flush_whatever(str)
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if str then
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for c in string.utfcharacters(str) do
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if c == " " then
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tex.sprint(tex.ctxcatcodes, "\\obs")
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elseif c == "\t" then
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tex.sprint(tex.ctxcatcodes, "\\obs")
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if buffers.visualizers.enabletab then
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tex.sprint(tex.ctxcatcodes,rep("\\obs ", buffers.visualizers.tablength))
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end
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else
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tex.write(c);
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end
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end
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end
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end
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local inlongcomment, incompdirec, inasm = false, false, false
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function visualizer.reset()
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@ -98,8 +115,9 @@ end
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end]]
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function visualizer.flush_line(str, nested)
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local state, word, lastc = 0, nil, nil
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local incomment = false
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local state, word = 0, nil
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local incomment, instring = false, false
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local code, comment = nil, nil
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buffers.currentcolors = colors
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--[[
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@ -115,81 +133,139 @@ function visualizer.flush_line(str, nested)
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end
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until not identifier
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]]
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--state = buffers.changestate(1, state)
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--TODO: handle inlongcomment etc.
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for c in string.utfcharacters(str) do
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if string.find(c, "^[%a_]$") then
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-- char belongs to identifier
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if word then
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word = word .. c
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else
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word = c
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end
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elseif string.find(c, "^[%d]$") then
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if word and (#word > 1) then
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-- number, that belongs to identifier
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word = word .. c
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else
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-- number
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if not incomment then
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state = buffers.changestate(3, state)
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end
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tex.write(c)
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end
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if inlongcomment then
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comment, code = string.match(str,"^(.-})(.*)$")
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if not comment then
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comment = str
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end
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state = buffers.changestate(3, state)
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tex.sprint(tex.ctxcatcodes, "\{\\bf")
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flush_whatever(comment)
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tex.sprint(tex.ctxcatcodes, "\}")
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if code then
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inlongcomment = false
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else
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if not incomment then
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state = buffers.finishstate(state)
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end
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flush_pas_word(word)
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word = nil
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if c == " " then
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--state = buffers.finishstate(state)
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tex.sprint(tex.ctxcatcodes, "\\obs")
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elseif c == "\t" then
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--state = buffers.finishstate(state)
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tex.sprint(tex.ctxcatcodes, "\\obs")
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if buffers.visualizers.enabletab then
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tex.sprint(tex.ctxcatcodes,rep("\\obs ", buffers.visualizers.tablength))
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code = ""
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end
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else
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code = str
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end
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local c = nil
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--[[
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for nextc in string.utfcharacters(code .. " ") do
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if firstrun then
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firstrun = false
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else
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print(c, nextc)
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end
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c = nextc
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end
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]]
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for nextc in string.utfcharacters(code .. " ") do
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if c then
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if instring then
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if c == "'" then
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-- string ends
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tex.write(c)
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state = buffers.finishstate(state)
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instring = false
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else
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-- inside the string
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flush_whatever(c)
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end
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elseif c == "/" then
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if lastc == "/" then
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elseif incomment then
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if inlongcomment and (c == "}") then
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-- long comment ends
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tex.write(c)
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tex.sprint(tex.ctxcatcodes, "\}")
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state = buffers.finishstate(state)
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inlongcomment = false
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incomment = false
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else
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-- inside the comment
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flush_whatever(c)
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end
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elseif string.find(c, "^[%a_]$") then
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-- char belongs to identifier
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if word then
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word = word .. c
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else
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word = c
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end
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elseif string.find(c, "^[%d]$") then
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if word and (#word > 1) then
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-- number, that belongs to identifier
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word = word .. c
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else
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-- number
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if not incomment then
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state = buffers.changestate(3, state)
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end
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tex.write(c)
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end
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else
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if not incomment then
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state = buffers.finishstate(state)
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end
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-- identifier complete, check if it's a reserved word and flush
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flush_pas_word(word)
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word = nil
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if c == " " then
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tex.sprint(tex.ctxcatcodes, "\\obs")
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elseif c == "\t" then
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tex.sprint(tex.ctxcatcodes, "\\obs")
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if buffers.visualizers.enabletab then
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tex.sprint(tex.ctxcatcodes,rep("\\obs ", buffers.visualizers.tablength))
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end
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elseif c == "'" then
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if not incomment then -- "not instring" not necessary
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-- string starts
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instring = true
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state = buffers.changestate(3, state)
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end
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tex.write(c)
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elseif (c == "/") and (nextc == "/") then
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if not incomment then
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-- one-line comment starts
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incomment = true
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state = buffers.changestate(3, state)
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tex.sprint(tex.ctxcatcodes, "\{\\bf")
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end
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tex.write("//")
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tex.write(c)
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elseif c == "{" then
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if not incomment then
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-- long comment starts
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incomment = true
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inlongcomment = true
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state = buffers.changestate(3, state)
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tex.sprint(tex.ctxcatcodes, "\{\\bf")
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end
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tex.write(c)
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-- TODO: (*, asm, {$
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else
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-- symbol
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if not incomment then
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state = buffers.changestate(1, state)
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end
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tex.write(c)
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end
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elseif c == "{" then
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if not incomment then
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-- long comment starts
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incomment = true
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inlongcomment = true
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state = buffers.changestate(3, state)
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tex.sprint(tex.ctxcatcodes, "\{\\bf")
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end
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tex.write(c)
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-- TODO: (*, asm, {$, '
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else
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-- symbol
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if not incomment then
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state = buffers.changestate(1, state)
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end
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tex.write(c)
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end
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end
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lastc = c
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c = nextc
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end
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if not incomment then
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state = buffers.finishstate(state)
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end
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-- maybe something left, check if it's a reserved word and flush
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flush_pas_word(word)
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if incomment then
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-- end the comment-line
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tex.sprint(tex.ctxcatcodes, "\}")
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end
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--word = nil
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--[[
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local code, comment = string.match(str,"^(.-)%-%-%[%[(.*)$")
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