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-rw-r--r--tex/generic/context/luatex/luatex-preprocessor.lua326
1 files changed, 163 insertions, 163 deletions
diff --git a/tex/generic/context/luatex/luatex-preprocessor.lua b/tex/generic/context/luatex/luatex-preprocessor.lua
index 610fe4b4d..8faa0b47e 100644
--- a/tex/generic/context/luatex/luatex-preprocessor.lua
+++ b/tex/generic/context/luatex/luatex-preprocessor.lua
@@ -1,163 +1,163 @@
-if not modules then modules = { } end modules ['luatex-preprocessor'] = {
- version = 1.001,
- comment = "companion to luatex-preprocessor.tex",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
---[[ldx
-<p>This is a stripped down version of the preprocessor. In
-<l n='context'/> we have a bit more, use a different logger, and
-use a few optimizations. A few examples are shown at the end.</p>
---ldx]]
-
-local rep, sub, gmatch = string.rep, string.sub, string.gmatch
-local insert, remove = table.insert, table.remove
-local setmetatable = setmetatable
-
-local stack, top, n, hashes = { }, nil, 0, { }
-
-local function set(s)
- if top then
- n = n + 1
- if n > 9 then
- texio.write_nl("number of arguments > 9, ignoring: " .. s)
- else
- local ns = #stack
- local h = hashes[ns]
- if not h then
- h = rep("#",ns)
- hashes[ns] = h
- end
- m = h .. n
- top[s] = m
- return m
- end
- end
-end
-
-local function get(s)
- local m = top and top[s] or s
- return m
-end
-
-local function push()
- top = { }
- n = 0
- local s = stack[#stack]
- if s then
- setmetatable(top,{ __index = s })
- end
- insert(stack,top)
-end
-
-local function pop()
- top = remove(stack)
-end
-
-local leftbrace = lpeg.P("{")
-local rightbrace = lpeg.P("}")
-local escape = lpeg.P("\\")
-
-local space = lpeg.P(" ")
-local spaces = space^1
-local newline = lpeg.S("\r\n")
-local nobrace = 1 - leftbrace - rightbrace
-
-local name = lpeg.R("AZ","az")^1
-local longname = (leftbrace/"") * (nobrace^1) * (rightbrace/"")
-local variable = lpeg.P("#") * lpeg.Cs(name + longname)
-local escapedname = escape * name
-local definer = escape * (lpeg.P("def") + lpeg.P("egdx") * lpeg.P("def"))
-local anything = lpeg.P(1)
-local always = lpeg.P(true)
-
-local pushlocal = always / push
-local poplocal = always / pop
-local declaration = variable / set
-local identifier = variable / get
-
-local function matcherror(str,pos)
- texio.write_nl("runaway definition at: " .. sub(str,pos-30,pos))
-end
-
-local parser = lpeg.Cs { "converter",
- definition = pushlocal
- * definer
- * escapedname
- * (declaration + (1-leftbrace))^0
- * lpeg.V("braced")
- * poplocal,
- braced = leftbrace
- * ( lpeg.V("definition")
- + identifier
- + lpeg.V("braced")
- + nobrace
- )^0
- * (rightbrace + lpeg.Cmt(always,matcherror)),
- converter = (lpeg.V("definition") + anything)^1,
-}
-
---[[ldx
-<p>We provide a few commands.</p>
---ldx]]
-
--- local texkpse
-
-local function find_file(...)
- -- texkpse = texkpse or kpse.new("luatex","tex")
- -- return texkpse:find_file(...) or ""
- return kpse.find_file(...) or ""
-end
-
-commands = commands or { }
-
-function commands.preprocessed(str)
- return lpeg.match(parser,str)
-end
-
-function commands.inputpreprocessed(name)
- local name = find_file(name) or ""
- if name ~= "" then
- -- we could use io.loaddata as it's loaded in luatex-plain
- local f = io.open(name,'rb')
- if f then
- texio.write("("..name)
- local d = commands.preprocessed(f:read("*a"))
- if d and d ~= "" then
- texio.write("processed: " .. name)
- for s in gmatch(d,"[^\n\r]+") do
- tex.print(s) -- we do a dumb feedback
- end
- end
- f:close()
- texio.write(")")
- else
- tex.error("preprocessor error, invalid file: " .. name)
- end
- else
- tex.error("preprocessor error, unknown file: " .. name)
- end
-end
-
-function commands.preprocessfile(oldfile,newfile) -- no checking
- if oldfile and oldfile ~= newfile then
- local f = io.open(oldfile,'rb')
- if f then
- local g = io.open(newfile,'wb')
- if g then
- g:write(lpeg.match(parser,f:read("*a") or ""))
- g:close()
- end
- f:close()
- end
- end
-end
-
---~ print(preprocessed([[\def\test#oeps{test:#oeps}]]))
---~ print(preprocessed([[\def\test#oeps{test:#{oeps}}]]))
---~ print(preprocessed([[\def\test#{oeps:1}{test:#{oeps:1}}]]))
---~ print(preprocessed([[\def\test#{oeps}{test:#oeps}]]))
---~ preprocessed([[\def\test#{oeps}{test:#oeps \halign{##\cr #oeps\cr}]])
---~ print(preprocessed([[\def\test#{oeps}{test:#oeps \halign{##\cr #oeps\cr}}]]))
+if not modules then modules = { } end modules ['luatex-preprocessor'] = {
+ version = 1.001,
+ comment = "companion to luatex-preprocessor.tex",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+--[[ldx
+<p>This is a stripped down version of the preprocessor. In
+<l n='context'/> we have a bit more, use a different logger, and
+use a few optimizations. A few examples are shown at the end.</p>
+--ldx]]
+
+local rep, sub, gmatch = string.rep, string.sub, string.gmatch
+local insert, remove = table.insert, table.remove
+local setmetatable = setmetatable
+
+local stack, top, n, hashes = { }, nil, 0, { }
+
+local function set(s)
+ if top then
+ n = n + 1
+ if n > 9 then
+ texio.write_nl("number of arguments > 9, ignoring: " .. s)
+ else
+ local ns = #stack
+ local h = hashes[ns]
+ if not h then
+ h = rep("#",ns)
+ hashes[ns] = h
+ end
+ m = h .. n
+ top[s] = m
+ return m
+ end
+ end
+end
+
+local function get(s)
+ local m = top and top[s] or s
+ return m
+end
+
+local function push()
+ top = { }
+ n = 0
+ local s = stack[#stack]
+ if s then
+ setmetatable(top,{ __index = s })
+ end
+ insert(stack,top)
+end
+
+local function pop()
+ top = remove(stack)
+end
+
+local leftbrace = lpeg.P("{")
+local rightbrace = lpeg.P("}")
+local escape = lpeg.P("\\")
+
+local space = lpeg.P(" ")
+local spaces = space^1
+local newline = lpeg.S("\r\n")
+local nobrace = 1 - leftbrace - rightbrace
+
+local name = lpeg.R("AZ","az")^1
+local longname = (leftbrace/"") * (nobrace^1) * (rightbrace/"")
+local variable = lpeg.P("#") * lpeg.Cs(name + longname)
+local escapedname = escape * name
+local definer = escape * (lpeg.P("def") + lpeg.P("egdx") * lpeg.P("def"))
+local anything = lpeg.P(1)
+local always = lpeg.P(true)
+
+local pushlocal = always / push
+local poplocal = always / pop
+local declaration = variable / set
+local identifier = variable / get
+
+local function matcherror(str,pos)
+ texio.write_nl("runaway definition at: " .. sub(str,pos-30,pos))
+end
+
+local parser = lpeg.Cs { "converter",
+ definition = pushlocal
+ * definer
+ * escapedname
+ * (declaration + (1-leftbrace))^0
+ * lpeg.V("braced")
+ * poplocal,
+ braced = leftbrace
+ * ( lpeg.V("definition")
+ + identifier
+ + lpeg.V("braced")
+ + nobrace
+ )^0
+ * (rightbrace + lpeg.Cmt(always,matcherror)),
+ converter = (lpeg.V("definition") + anything)^1,
+}
+
+--[[ldx
+<p>We provide a few commands.</p>
+--ldx]]
+
+-- local texkpse
+
+local function find_file(...)
+ -- texkpse = texkpse or kpse.new("luatex","tex")
+ -- return texkpse:find_file(...) or ""
+ return kpse.find_file(...) or ""
+end
+
+commands = commands or { }
+
+function commands.preprocessed(str)
+ return lpeg.match(parser,str)
+end
+
+function commands.inputpreprocessed(name)
+ local name = find_file(name) or ""
+ if name ~= "" then
+ -- we could use io.loaddata as it's loaded in luatex-plain
+ local f = io.open(name,'rb')
+ if f then
+ texio.write("("..name)
+ local d = commands.preprocessed(f:read("*a"))
+ if d and d ~= "" then
+ texio.write("processed: " .. name)
+ for s in gmatch(d,"[^\n\r]+") do
+ tex.print(s) -- we do a dumb feedback
+ end
+ end
+ f:close()
+ texio.write(")")
+ else
+ tex.error("preprocessor error, invalid file: " .. name)
+ end
+ else
+ tex.error("preprocessor error, unknown file: " .. name)
+ end
+end
+
+function commands.preprocessfile(oldfile,newfile) -- no checking
+ if oldfile and oldfile ~= newfile then
+ local f = io.open(oldfile,'rb')
+ if f then
+ local g = io.open(newfile,'wb')
+ if g then
+ g:write(lpeg.match(parser,f:read("*a") or ""))
+ g:close()
+ end
+ f:close()
+ end
+ end
+end
+
+--~ print(preprocessed([[\def\test#oeps{test:#oeps}]]))
+--~ print(preprocessed([[\def\test#oeps{test:#{oeps}}]]))
+--~ print(preprocessed([[\def\test#{oeps:1}{test:#{oeps:1}}]]))
+--~ print(preprocessed([[\def\test#{oeps}{test:#oeps}]]))
+--~ preprocessed([[\def\test#{oeps}{test:#oeps \halign{##\cr #oeps\cr}]])
+--~ print(preprocessed([[\def\test#{oeps}{test:#oeps \halign{##\cr #oeps\cr}}]]))