lib/messaging.nim
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import
terminal,
strutils,
sequtils,
unicode
import
minimline
type
TreeNode* = object
label: string
nodes: seq[TreeNode]
proc foreground(str: string, color: ForegroundColor) =
stdout.setForegroundColor(color)
stdout.write(str)
resetAttributes()
proc printGreen*(str: string) =
foreground(str, fgGreen)
proc printRed*(str: string) =
foreground(str, fgRed)
proc printYellow*(str: string) =
foreground(str, fgYellow)
proc printBlue*(str: string) =
foreground(str, fgBlue)
proc confirm*(q: string): bool =
printYellow("(!) " & q & " [y/n]: ")
var ed = initEditor()
let answer = ed.readLine().toLowerAscii[0]
if answer == 'y':
return true
return false
proc printValue*(key, value: string) =
printBlue(" -> $1: " % key)
printGreen(value)
resetAttributes()
stdout.write("\n")
proc editValue*(key: string, value = ""): string =
printBlue(" -> $1: " % key)
var ed = initEditor()
result = ed.edit(value)
proc printDeleted*(label, value: string) =
printRed("--- ")
echo label & ": " & value
proc printAdded*(label, value: string) =
printGreen("+++ ")
echo label & ": " & value
when defined(windows):
proc ch(s: string): string =
case s:
of "└":
return $(192.chr)
of "├":
return $(195.chr)
of "─":
return $(196.chr)
of "┬":
return $(194.chr)
of "│":
return $(179.chr)
else:
proc ch(s: string): string =
return s
proc newTreeNode*(label: string): TreeNode =
result.label = label
result.nodes = newSeq[TreeNode]()
proc add*(x: var TreeNode, node: TreeNode) =
x.nodes.add(node)
proc tree*(node: TreeNode, prefix = ""): string =
let splitterPart = if node.nodes.len > 0: ch("│") else: ""
let splitter = "\n" & prefix & splitterPart & ""
return prefix & [node.label].join(splitter) & "\n" & node.nodes.map(proc(x: TreeNode): string =
let ix = node.nodes.find(x)
let last = node.nodes.len-1 == ix
let more = x.nodes.len > 0
let prefixPart = if last: " " else: ch("│")
let newPrefix = prefix & prefixPart & " "
let lastPart = if last: ch("└") else: ch("├")
let morePart = if more: ch("┬") else: ch("─")
let rec = tree(x, newPrefix)
var offset = 3
var endSpace = ""
if lastPart == ch("└"):
offset = 2
endSpace = " "
return prefix & lastPart & ch("─") & morePart & endSpace & rec[prefix.len+offset .. rec.len-1]
).join("")
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