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local gsub, match, gmatch = string.gsub, string.match, string.gmatch
local insert = table.insert
local add_pattern = interpreter.add_pattern
-- CLASS 1: things that prevent other things, thanks to protection.
interpreter.default_class = 1
-- "> foo ..." as the first line of a paragraph signals a description
-- of foo.
local function describe (buffer, num)
if num == 1 then
local line = buffer[num]
line = line .. " "
line = gsub(line, "^> ", "")
line = gsub(line, "{<(.-)>}", "\\hskip1pt\\hbox{\\barg{%1}}")
line = gsub(line, "^(.-)%s+", "\\describe{%1}{")
line = gsub(line, "%[<(.-)>%]", "\\hskip1pt\\hbox{\\oarg{%1}}")
line = gsub(line, "<(.-)>", "\\hskip1pt\\hbox{\\arg{%1}}")
line = gsub(line, "\\hfil", "", 1)
line = gsub(line, "%s*$", "}", 1)
buffer[num] = line
interpreter.protect(num)
else
return 2
end
end
add_pattern{pattern = "^[\\>]", call = describe}
-- Verbatim material is marked by a 10-space indent.
local function verbatim (buffer)
for n, l in ipairs(buffer) do
buffer[n] = gsub(l, "%s%s%s%s%s%s%s%s%s%s","", 1)
end
insert(buffer, 1, [[\verbatim]])
if gsub(buffer[#buffer],
interpreter.paragraph, "") == "" then
buffer[#buffer] = [[\verbatim/]]
else
insert(buffer, [[\verbatim/]])
end
interpreter.protect()
end
add_pattern{pattern = "^%s%s%s%s%s%s%s%s%s%s", call = verbatim}
-- CLASS 2: protecting control sequences, so they're verbatim.
interpreter.default_class = 2
add_pattern {
pattern = "(\\[%a@]+)",
replace = '"%1"'}
-- CLASS 3: things that precede other things.
interpreter.default_class = 3
-- Tables.
local function table (buffer)
buffer[1] = "PROTECT\\tablePROTECT"
if buffer[#buffer] == "" then
buffer[#buffer-1] = "PROTECT\\table/PROTECT"
else
buffer[#buffer] = "PROTECT\\table/PROTECT"
end
local cells = 0
for i, l in ipairs(buffer) do
if match(l, "^%-%-%-") then
l = "%"
else
l = gsub(l, "^|", "")
l = gsub(l, "|%s*$", "PROTECT\\crPROTECT")
local c = 0
l = gsub(l, "|", function () c = c + 1 return "&" end)
cells = c > cells and c or cells
end
buffer[i] = l
end
for i, l in ipairs(buffer) do
if match(l, "\\cr") then
local c = 0
for tab in gmatch(l, "&") do
c = c + 1
end
for x = 1, cells - c do
buffer[i] = gsub(l, "\\cr", "\\span\\cr")
end
end
end
end
add_pattern{pattern = "^%-%-%-", call = table}
-- Sections.
local function make_header(buffer, num, _, pattern)
if num + 1 == #buffer then
local l = buffer[1]
l = gsub(l, "^%s*", "")
l = "\\" .. pattern.type .. "{" .. l
if match(l, ":([%S]+)%s*$") then
l = gsub(l, "%s*:([%a_]+)%s*$", "}PROTECT[%1]PROTECT")
else
l = l .. "}"
end
buffer[1] = l
buffer[num] = ""
end
end
add_pattern {pattern = "^%s*===", call = make_header, type = "section"}
add_pattern {pattern = "^%s*~~~", call = make_header, type = "subsection"}
add_pattern {pattern = "^%s%s%s*%-%-%s+(.-)%s+%-%-",
call = function (buffer, line, _, pattern)
buffer[line] = gsub(buffer[line], pattern.pattern, "\\paragraph{%1}")
buffer[line] = gsub(buffer[line], "%s*:(%S+)", "PROTECT[%1]PROTECT")
end}
-- CLASS 4: things with no order of preference.
interpreter.default_class = 4
add_pattern {pattern = "%*(.-)%*", replace = "\\emph{%1}"}
add_pattern {pattern = "%*%*(.-)%*%*", replace = "\\bold{%1}"}
add_pattern {pattern = "%?([a-zA-Z]+)", replace = "\\attr{%1}"}
add_pattern {pattern = "!([a-zA-Z]+)", replace = "\\param{%1}"}
add_pattern {pattern = "=([a-zA-Z]+)", replace = "\\value{%1}"}
add_pattern {pattern = "|(.-)|", replace = "\\gateaction{%1}"}
add_pattern {pattern = "<(.-)>", replace = "\\arg{%1}"}
add_pattern {pattern = "{<(.-)>}", replace = "\\barg{%1}", offset = 7}
add_pattern {pattern = "%[<(.-)>%]", replace = "\\oarg{%1}", offset = 7}
add_pattern {pattern = "TeX", replace = "\\TeX{}", offset = 2}
add_pattern {pattern = "(texapi)(.?)", offset = 7,
replace = function (a, b)
a = "\\emph{texapi}"
if b == "'" then
a = a .. "\\kern.2em'"
else
a = a .. b
end
return a
end}
-- Links.
add_pattern {pattern = "%s*%[see%s+([%a_]+)%]",
call = function (buffer, line, index, pattern)
local l = buffer[line]
local pre, post = l:sub(1, index-1), l:sub(index)
local text
if pre:match("{.-}$") then
pre, text = match(pre, "(.*){(.-)}$")
else
pre, text = match(pre, "(.-)(%a+)$")
end
post = gsub(post, pattern.pattern, "\\jumplink{PROTECT%1PROTECT}{" .. text .. "}", 1)
buffer[line] = pre .. post
end}
add_pattern {pattern = ":([%a_]+)", replace = "\\anchor{PROTECT%1PROTECT}"}
-- CLASS 0: the broom wagon
interpreter.default_class = 0
interpreter.protector('"')
add_pattern {pattern = '"(.-)"', replace = "\\verb`%1`", class = 0}
interpreter.protector("PROTECT")
add_pattern {pattern = "PROTECT(.-)PROTECT", replace = "%1", class = 0}
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