minim.nim
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import streams, critbits, parseopt2, strutils, os, json, sequtils import core/linedit, core/consts, core/parser, core/interpreter, core/utils import lib/min_lang, lib/min_num, lib/min_str, lib/min_logic, lib/min_time, lib/min_io, lib/min_sys, lib/min_crypto, lib/min_fs var REPL = false var DEBUGGING = false const PRELUDE* = "prelude.min".slurp.strip let usage* = " MiNiM v" & version & " - a tiny concatenative programming language" & """ (c) 2014-2016 Fabio Cevasco Usage: minim [options] [filename] Arguments: filename A minim file to interpret (default: STDIN). Options: -e, --evaluate Evaluate a minim program inline -h, --help Print this help -v, --version Print the program version -i, --interactive Start MiNiM Shell""" 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) return res proc getCompletions(ed: LineEditor, symbols: seq[string]): seq[string] = var words = ed.lineText.split(" ") var word: string if words.len == 0: word = ed.lineText else: word = words[words.len-1] if word.startsWith("'"): return symbols.mapIt("'" & $it) elif 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(MINIMSYMBOLS.readFile.parseJson.pairs).mapIt(">" & $it[0]) if word.startsWith("$"): return toSeq(envPairs()).mapIt("$" & $it[0]) if word.startsWith("!"): return getExecs().mapIt("!" & $it[0]) if word.startsWith("&"): return getExecs().mapIt("&" & $it[0]) 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.startsWith(file)).mapIt("\"$1/$2\"" % [dir, it.path.replace("\\", "/")]) else: dir = getCurrentDir() return toSeq(walkDir(dir, true)).filterIt(it.path.startsWith(f)).mapIt("\"$1\"" % [it.path.replace("\\", "/")]) return symbols proc stdLib(i: In) = i.lang_module i.io_module i.logic_module i.num_module i.str_module i.sys_module i.time_module i.fs_module i.crypto_module i.eval PRELUDE if not MINIMSYMBOLS.fileExists: MINIMSYMBOLS.writeFile("{}") if not MINIMHISTORY.fileExists: MINIMHISTORY.writeFile("") if not MINIMRC.fileExists: MINIMRC.writeFile("") i.eval MINIMRC.readFile() proc minimStream(s: Stream, filename: string, debugging = false) = var i = newMinInterpreter(debugging) i.pwd = filename.parentDir i.stdLib() i.open(s, filename) discard i.parser.getToken() i.interpret() i.close() proc minimString*(buffer: string, debugging = false) = minimStream(newStringStream(buffer), "input", debugging) proc minimFile*(filename: string, debugging = false) = var stream = newFileStream(filename, fmRead) if stream == nil: stderr.writeLine("Error - Cannot read from file: "& filename) stderr.flushFile() minimStream(stream, filename, debugging) proc minimFile*(file: File, filename="stdin", debugging = false) = var stream = newFileStream(stdin) if stream == nil: stderr.writeLine("Error - Cannot read from "& filename) stderr.flushFile() minimStream(stream, filename, debugging) proc minimRepl*(i: var MinInterpreter) = i.stdLib() var s = newStringStream("") i.open(s, "") var line: string echo "MiNiM Shell v$1" % version echo "-> Type 'exit' or 'quit' to exit." var ed = initEditor(historyFile = MINIMHISTORY) KEYMAP["ctrl+s"] = proc (ed: var LineEditor) = echo "hello" when defined(windows): discard execShellCmd("cls") else: discard execShellCmd("clear") while true: let symbols = toSeq(i.scope.symbols.keys) completionCallback = proc(ed: LineEditor): seq[string] {.locks: 0.}= return ed.getCompletions(symbols) line = ed.readLine(": ") i.parser.buf = $i.parser.buf & $line i.parser.bufLen = i.parser.buf.len discard i.parser.getToken() try: i.interpret() except: warn getCurrentExceptionMsg() finally: if i.stack.len > 0: let last = i.stack[i.stack.len - 1] let n = $i.stack.len if last.isQuotation and last.qVal.len > 1: echo "{$1} -> (" % n for item in last.qVal: echo " " & $item echo " ".repeat(n.len) & " )" else: echo "{$1} -> $2" % [$i.stack.len, $i.stack[i.stack.len - 1]] else: echo "{0} --" proc minimRepl*(debugging = false) = var i = newMinInterpreter(debugging) i.minimRepl ### var file, s: string = "" for kind, key, val in getopt(): case kind: of cmdArgument: file = key of cmdLongOption, cmdShortOption: case key: of "debug", "d": DEBUGGING = true of "evaluate", "e": s = val of "help", "h": echo usage quit(0) of "version", "v": echo version quit(0) of "interactive", "i": REPL = true else: discard else: discard if s != "": minimString(s, DEBUGGING) elif file != "": minimFile file, DEBUGGING elif REPL: minimRepl DEBUGGING quit(0) else: minimFile stdin, "stdin", DEBUGGING |