min.nim
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import streams, strutils, sequtils, json, os, algorithm, logging, noise, minpkg/packages/niftylogger, minpkg/core/baseutils, minpkg/core/env, minpkg/core/parser, minpkg/core/value, minpkg/core/scope, minpkg/core/interpreter, minpkg/core/utils import minpkg/lib/min_lang, minpkg/lib/min_stack, minpkg/lib/min_seq, minpkg/lib/min_dict, minpkg/lib/min_num, minpkg/lib/min_str, minpkg/lib/min_logic, minpkg/lib/min_time, minpkg/lib/min_sys, minpkg/lib/min_io, minpkg/lib/min_dstore, minpkg/lib/min_fs, minpkg/lib/min_http, minpkg/lib/min_net, minpkg/lib/min_crypto, minpkg/lib/min_math export env, parser, interpreter, utils, value, scope, min_lang, niftylogger const PRELUDE* = "prelude.min".slurp.strip var NIMOPTIONS* = "" var MINMODULES* = newSeq[string](0) var customPrelude {.threadvar.} : string customPrelude = "" if logging.getHandlers().len == 0: newNiftyLogger().addHandler() proc getExecs(): seq[string] = var res = newSeq[string](0) let getFiles = proc(dir: string) = for c, s in walkDir(dir, true): if (c == pcFile or c == pcLinkToFile) and not res.contains(s): res.add s getFiles(getCurrentDir()) for dir in "PATH".getEnv.split(PathSep): getFiles(dir) res.sort(system.cmp) return res proc getCompletions*(ed: Noise, word: string, symbols: seq[string]): seq[string] = if word.startsWith("'"): return symbols.mapIt("'" & $it) if word.startsWith("~"): return symbols.mapIt("~" & $it) if word.startsWith("?"): return symbols.mapIt("?" & $it) if word.startsWith("@"): return symbols.mapIt("@" & $it) if word.startsWith("#"): return symbols.mapIt("#" & $it) if word.startsWith(">"): return symbols.mapIt(">" & $it) if word.startsWith("*"): return symbols.mapIt("*" & $it) if word.startsWith("("): return symbols.mapIt("(" & $it) if word.startsWith("<"): return toSeq(MINSYMBOLS.readFile.parseJson.pairs).mapIt("<" & $it[0]) if word.startsWith("$"): return toSeq(envPairs()).mapIt("$" & $it[0]) if word.startsWith("!"): return getExecs().mapIt("!" & $it) if word.startsWith("!!"): return getExecs().mapIt("!!" & $it) if word.startsWith("!\""): return getExecs().mapIt("!\"" & $it) if word.startsWith("!!\""): return getExecs().mapIt("!!\"" & $it) if word.startsWith("&\""): return getExecs().mapIt("&\"" & $it) if word.startsWith("&"): return getExecs().mapIt("&" & $it) if word.startsWith("\""): var f = word[1..^1] if f == "": f = getCurrentDir().replace("\\", "/") return toSeq(walkDir(f, true)).mapIt("\"$1" % it.path.replace("\\", "/")) elif f.dirExists: f = f.replace("\\", "/") if f[f.len-1] != '/': f = f & "/" return toSeq(walkDir(f, true)).mapIt("\"$1$2" % [f, it.path.replace("\\", "/")]) else: var dir: string if f.contains("/") or dir.contains("\\"): dir = f.parentDir let file = f.extractFileName return toSeq(walkDir(dir, true)).filterIt(it.path.toLowerAscii.startsWith(file.toLowerAscii)).mapIt("\"$1/$2" % [dir, it.path.replace("\\", "/")]) else: dir = getCurrentDir() return toSeq(walkDir(dir, true)).filterIt(it.path.toLowerAscii.startsWith(f.toLowerAscii)).mapIt("\"$1" % [it.path.replace("\\", "/")]) return symbols proc stdLib*(i: In) = setLogFilter(logging.lvlNotice) if not MINSYMBOLS.fileExists: MINSYMBOLS.writeFile("{}") if not MINHISTORY.fileExists: MINHISTORY.writeFile("") if not MINRC.fileExists: MINRC.writeFile("") i.lang_module i.stack_module i.seq_module i.dict_module i.logic_module i.num_module i.str_module i.time_module i.sys_module i.fs_module i.dstore_module i.io_module i.crypto_module i.net_module i.math_module i.http_module if customPrelude == "": i.eval PRELUDE, "<prelude>" else: try: i.eval customPrelude.readFile, customPrelude except CatchableError: logging.warn("Unable to process custom prelude code in $1" % customPrelude) try: i.eval MINRC.readFile() except CatchableError: error "An error occurred evaluating the .minrc file." proc interpret*(i: In, s: Stream) = i.stdLib() i.open(s, i.filename) discard i.parser.getToken() try: i.interpret() except CatchableError: discard i.close() proc interpret*(i: In, s: string): MinValue = i.open(newStringStream(s), i.filename) discard i.parser.getToken() try: result = i.interpret() except CatchableError: discard i.close() proc minFile*(filename: string, op = "interpret", main = true): seq[string] {.discardable.} proc compile*(i: In, s: Stream, main = true): seq[string] = if "nim".findExe == "": logging.error "Nim compiler not found, unable to compile." quit(7) result = newSeq[string](0) i.open(s, i.filename) discard i.parser.getToken() try: MINCOMPILED = true let dotindex = i.filename.rfind(".") let nimFile = i.filename[0..dotindex-1] & ".nim" if main: logging.notice("Generating $#..." % nimFile) result = i.initCompiledFile(MINMODULES) for m in MINMODULES: let f = m.replace("\\", "/") result.add "### $#" % f logging.notice("- Including: $#" % f) result = result.concat(minFile(f, "compile", main = false)) result.add "### $# (main)" % i.filename result = result.concat(i.compileFile(main)) writeFile(nimFile, result.join("\n")) let cmd = "nim c $#$#" % [NIMOPTIONS&" ", nimFile] logging.notice("Calling Nim compiler:") logging.notice(cmd) discard execShellCmd(cmd) else: result = result.concat(i.compileFile(main)) except CatchableError: discard i.close() proc minStream(s: Stream, filename: string, op = "interpret", main = true): seq[string] {.discardable.}= var i = newMinInterpreter(filename = filename) i.pwd = filename.parentDirEx if op == "interpret": i.interpret(s) newSeq[string](0) else: i.compile(s, main) proc minStr*(buffer: string) = minStream(newStringStream(buffer), "input") proc minFile*(filename: string, op = "interpret", main = true): seq[string] {.discardable.} = var fn = filename if not filename.endsWith(".min"): fn &= ".min" var fileLines = newSeq[string](0) var contents = "" try: fileLines = fn.readFile().splitLines() except CatchableError: logging.fatal("Cannot read from file: " & fn) quit(3) if fileLines[0].len >= 2 and fileLines[0][0..1] == "#!": contents = ";;\n" & fileLines[1..fileLines.len-1].join("\n") else: contents = fileLines.join("\n") minStream(newStringStream(contents), fn, op, main) when isMainModule: import terminal, parseopt, critbits, minpkg/core/meta var REPL = false var SIMPLEREPL = false var COMPILE = false var MODULEPATH = "" var exeName = "min" var iOpt = "\n -i, --interactive Start $1 shell (with advanced prompt, default if no file specidied)\n" proc printResult(i: In, res: MinValue) = if res.isNil: return if i.stack.len > 0: let n = $i.stack.len if res.isQuotation and res.qVal.len > 1: echo " (" for item in res.qVal: echo " " & $item echo " ".repeat(n.len) & ")" elif res.isCommand: echo " [" & res.cmdVal & "]" elif res.isDictionary and res.dVal.len > 1: echo " {" for item in res.dVal.pairs: var v = "" if item.val.kind == minProcOp: v = "<native>" else: v = $item.val.val echo " " & v & " :" & $item.key if res.objType == "": echo " ".repeat(n.len) & "}" else: echo " ".repeat(n.len) & " ;" & res.objType echo " ".repeat(n.len) & "}" else: echo " $1" % [$i.stack[i.stack.len - 1]] proc minSimpleRepl*(i: var MinInterpreter) = i.stdLib() var s = newStringStream("") i.open(s, "<repl>") var line: string while true: i.push(i.newSym("prompt")) let vals = i.expect("str") let v = vals[0] let prompt = v.getString() stdout.write(prompt) stdout.flushFile() line = stdin.readLine() let r = i.interpret($line) if $line != "": i.printResult(r) proc minRepl*(i: var MinInterpreter) = i.stdLib() var s = newStringStream("") i.open(s, "<repl>") var line: string echo "$# shell v$#" % [exeName, pkgVersion] while true: let symbols = toSeq(i.scope.symbols.keys) let completionCallback = proc(ed: var Noise, text: string): int = let list = ed.getCompletions(text, symbols).filterIt(it.startsWith(text)) for item in list: ed.addCompletion(item) EDITOR.setCompletionHook(completionCallback) # evaluate prompt i.push(i.newSym("prompt")) let vals = i.expect("str") let v = vals[0] let prompt = v.getString() EDITOR.setPrompt(prompt) let res = EDITOR.readLine() if res == false: quit(0) let r = i.interpret(EDITOR.getLine()) if $line != "": i.printResult(r) proc minRepl*() = var i = newMinInterpreter(filename = "<repl>") i.minRepl() proc minSimpleRepl*() = var i = newMinInterpreter(filename = "<repl>") i.minSimpleRepl() let usage* = """ $exe v$version - a small but practical concatenative programming language (c) 2014-2021 Fabio Cevasco Usage: $exe [options] [filename] Arguments: filename A $exe file to interpret or compile Options: -a, --asset-path Specify a directory containing the asset files to include in the compiled executable (if -c is set) -c, --compile Compile the specified file -e, --evaluate Evaluate a $exe program inline -d, --dev Enable "development mode" (runtime checks) -h, --help Print this help$iOpt -j, --interactive-simple Start $exe shell (without advanced prompt) -l, --log Set log level (debug|info|notice|warn|error|fatal) Default: notice -m, --module-path Specify a directory containing the .min files to include in the compiled executable (if -c is set) -n, --passN Pass options to the nim compiler (if -c is set) -p, --prelude:<file.min> If specified, it loads <file.min> instead of the default prelude code -v, —-version Print the program version""" % [ "exe", exeName, "version", pkgVersion, "iOpt", iOpt ] var file, s: string = "" var args = newSeq[string](0) logging.setLogFilter(logging.lvlNotice) var p = initOptParser() for kind, key, val in getopt(p): case kind: of cmdArgument: args.add key if file == "": file = key of cmdLongOption, cmdShortOption: case key: of "compile", "c": COMPILE = true of "module-path", "m": MODULEPATH = val of "asset-path", "a": ASSETPATH = val of "prelude", "p": customPrelude = val of "dev", "d": DEV = true of "log", "l": if file == "": var val = val niftylogger.setLogLevel(val) of "passN", "n": NIMOPTIONS = val of "evaluate", "e": if file == "": s = val of "help", "h": if file == "": echo usage quit(0) of "version", "v": if file == "": echo pkgVersion quit(0) of "interactive", "i": if file == "": REPL = true of "interactive-simple", "j": if file == "": SIMPLEREPL = true else: discard else: discard var op = "interpret" if COMPILE: op = "compile" if MODULEPATH.len > 0: for f in walkDirRec(MODULEPATH): if f.endsWith(".min"): MINMODULES.add f elif REPL: minRepl() quit(0) if s != "": minStr(s) elif file != "": minFile file, op elif SIMPLEREPL: minSimpleRepl() quit(0) else: if isatty(stdin): minRepl() quit(0) else: minStream newFileStream(stdin), "stdin", op |