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+#!/usr/bin/env lua
+-- A compiler for Autocento of the breakfast table
+-- written in Lua (because we can, and because
+-- it's good practice for Functional Programming)
+-- ((OR WHATEVER YOU CALL IT, GAHD))
+-- vim: fdm=indent
+
+dir = "/d/Copy/writing/autocento/"
+
+function filterout (list, filter)
+    local output = {}
+    for _,v in ipairs(list) do
+        if not string.match(v, filter) then
+            -- table.insert Y U NO WORK?
+            output[#output + 1] = v
+        end
+    end
+    return output
+end
+function intable (table, item)
+    for k,v in pairs(table) do
+        if v == item then return k end
+    end
+    return false
+end
+function tabsub (table, pattern, replace)
+    local output = {}
+    for k,v in pairs(table) do
+        output[k] = v:gsub(pattern, replace)
+    end
+    return output
+end
+
+function compile (files, output_fmt, extension, template, args)
+    local errors = {}
+    if template then table.insert(args, 'template="'..template..'"') end
+    for _, file in pairs(files) do
+        local pandoc_run = {
+            'pandoc',
+            '-f markdown',
+            '-t '..output_fmt,
+            table.concat(tabsub(args, "^", "--"), ' '),
+            '-o '..file:gsub('^.*/(.-)%.%a+', '%1.'..extension),
+            file
+        }
+        print("Compiling "..file.." to ".. extension)
+        -- print(table.concat(pandoc_run, ' '))
+        os.execute(table.concat(pandoc_run, ' '))
+    end
+end
+
+function move (files, new_dir)
+    local exe = {}
+    for _,file in pairs(files) do
+        print("Moving "..file.." to "..new_dir.."/ ..")
+        table.insert(exe, 'mv '..file..' '..new_dir..'/')
+    end
+    os.execute(table.concat(exe, ' && '))
+    -- print(table.concat(exe, '; '))
+end
+
+function lozenge (files)
+    local output = 'var files=['
+    for _,file in pairs(files) do
+        output = output .. file:gsub('.*', '"%0",')
+    end
+    output = output:gsub(',$', ']')
+    return output
+end
+
+local files = filterout(arg, '^%-')
+if not files or #files == 0 then
+    print("> No file list. WUT?")
+    os.exit(1)
+end
+local args = filterout(arg, '^[^%-]')
+if not args or #args == 0 or args == {'-all'} then
+    args = {
+        '-html',
+        '-river',
+        '-lozenge',
+    }
+end
+
+if intable(args, '-html') then
+    print("Compiling HTML ... ")
+    compile(files, "html5", "html", ".template.html", {
+        "smart",
+        "mathml",
+        "section-divs",
+    })
+    -- move(tabsub(files,'^.*/(.*)%.txt','%1.html'), ".")
+end
+if intable(args, '-river') then
+    print("Compiling RIVER ... ")
+    compile(files, "lua/river.lua", "river", nil, {})
+    move(tabsub(files,'^.*/(.*)%.txt','%1.river'), "river")
+end
+if intable(args, '-lozenge') then
+    print("Updating lozenge.js with file list ... ")
+    -- TODO
+end