lib/min_io.nim
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import
strutils,
logging
import
../packages/nimline/nimline,
../packages/nim-sgregex/sgregex,
../core/parser,
../core/value,
../core/interpreter,
../core/utils
# I/O
proc io_module*(i: In) =
let def = i.define()
def.symbol("newline") do (i: In):
echo ""
def.symbol("puts") do (i: In):
let a = i.peek
echo $$a
def.symbol("puts!") do (i: In):
echo $$i.pop
def.symbol("notice") do (i: In):
let a = i.peek
notice $$a
def.symbol("info") do (i: In):
let a = i.peek
info $$a
def.symbol("error") do (i: In):
let a = i.peek
error $$a
def.symbol("warn") do (i: In):
let a = i.peek
warn $$a
def.symbol("debug") do (i: In):
let a = i.peek
debug $$a
def.symbol("fatal") do (i: In):
let a = i.peek
fatal $$a
quit(100)
def.symbol("column-print") do (i: In):
let vals = i.expect("int", "quot")
let n = vals[0]
let q = vals[1]
var c = 0
for s in q.qVal:
c.inc
stdout.write $$s & spaces(max(0, 15 - ($$s).len))
if c mod n.intVal == 0:
echo ""
echo ""
def.symbol("gets") do (i: In) {.gcsafe.}:
var ed = initEditor()
i.push ed.readLine().newVal
def.symbol("getchr") do (i: In):
i.push getchr().newVal
def.symbol("putchr") do (i: In):
let ch = i.expect("string")
if ch[0].getString.len != 1:
raiseInvalid("Symbol putch requires a string containing a single character.")
putchr(ch[0].getString[0].cint)
def.symbol("password") do (i: In) {.gcsafe.}:
var ed = initEditor()
i.push ed.password("Enter Password: ").newVal
def.symbol("ask") do (i: In) {.gcsafe.}:
var ed = initEditor()
let vals = i.expect("string")
let s = vals[0]
i.push ed.readLine(s.getString & ": ").newVal
def.symbol("confirm") do (i: In) {.gcsafe.}:
var ed = initEditor()
let vals = i.expect("string")
let s = vals[0]
proc confirm(): bool =
let answer = ed.readLine(s.getString & " [yes/no]: ")
if answer.match("^y(es)?$", "i"):
return true
elif answer.match("^no?$", "i"):
return false
else:
stdout.write "Invalid answer. Please enter 'yes' or 'no': "
return confirm()
i.push confirm().newVal
def.symbol("choose") do (i: In) {.gcsafe.}:
var ed = initEditor()
let vals = i.expect("'sym", "quot")
let s = vals[0]
var q = vals[1]
if q.qVal.len <= 0:
raiseInvalid("No choices to display")
stdout.writeLine(s.getString)
proc choose(): int =
var c = 0
for item in q.qVal:
if not item.isQuotation or not item.qVal.len == 2 or not item.qVal[0].isString or not item.qVal[1].isQuotation:
raiseInvalid("Each item of the quotation must be a quotation containing a string and a quotation")
c.inc
echo "$1 - $2" % [$c, item.qVal[0].getString]
let answer = ed.readLine("Enter your choice ($1 - $2): " % ["1", $c])
var choice: int
try:
choice = answer.parseInt
except:
choice = 0
if choice <= 0 or choice > c:
echo "Invalid choice."
return choose()
else:
return choice
let choice = choose()
i.dequote(q.qVal[choice-1].qVal[1])
def.symbol("print") do (i: In):
let a = i.peek
a.print
def.symbol("print!") do (i: In):
i.pop.print
def.symbol("fread") do (i: In):
let vals = i.expect("string")
let a = vals[0]
i.push newVal(a.strVal.readFile)
def.symbol("fwrite") do (i: In):
let vals = i.expect("string", "string")
let a = vals[0]
let b = vals[1]
a.strVal.writeFile(b.strVal)
def.symbol("fappend") do (i: In):
let vals = i.expect("string", "string")
let a = vals[0]
let b = vals[1]
var f:File
discard f.open(a.strVal, fmAppend)
f.write(b.strVal)
f.close()
def.finalize("io")
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