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discard """
output: '''Section: common
Param: Floats1
Section: local
Param: Str
Param: Bool
Param: Floats2'''
cmd: '''nim c --gc:arc $file'''
"""
# bug #15325
import tables
import strutils
const defaultSection = "***"
type
Config* = ref object
table: OrderedTableRef[string, OrderedTable[string, string]]
# ----------------------------------------------------------------------------------------------------------------------
proc newConfig*(): Config =
result = new(Config)
result.table = newOrderedTable[string, OrderedTable[string, string]]()
# ----------------------------------------------------------------------------------------------------------------------
proc add*(self: Config, param, value, section: string) {.nosinks.} =
let s = if section == "": defaultSection else: section
if not self.table.contains(s):
self.table[s] = initOrderedTable[string, string]()
self.table[s][param] = value
# ----------------------------------------------------------------------------------------------------------------------
proc sections*(self: Config): seq[string] =
for i in self.table.keys:
let s = if i == defaultSection: "" else: i
result.add(s)
# ----------------------------------------------------------------------------------------------------------------------
proc params*(self: Config, section: string): seq[string] =
let s = if section == "": defaultSection else: section
if self.table.contains(s):
for i in self.table[s].keys:
result.add(i)
# ----------------------------------------------------------------------------------------------------------------------
proc extract*(str, start, finish: string): string =
let startPos = str.find(start)
if startPos < 0:
return ""
let endPos = str.find(finish, startPos)
if endPos < 0:
return ""
return str[startPos + start.len() ..< endPos]
# ----------------------------------------------------------------------------------------------------------------------
proc loadString*(self: Config, text: string): tuple[valid: bool, errorInLine: int] {.discardable.} =
self.table.clear()
var data = ""
data = text
var
actualSection = ""
lineCount = 0
for i in splitLines(data):
lineCount += 1
var line = strip(i)
if line.len() == 0:
continue
if line[0] == '#' or line[0] == ';':
continue
if line[0] == '[':
let section = strip(extract(line, "[", "]"))
if section.len() != 0:
actualSection = section
else:
self.table.clear()
return (false, lineCount)
else:
let equal = find(line, '=')
if equal <= 0:
self.table.clear()
return (false, lineCount)
else:
let
param = strip(line[0 .. equal - 1])
value = strip(line[equal + 1 .. ^1])
if param.len() == 0:
self.table.clear()
return (false, lineCount)
else:
self.add(param, value, actualSection)
return (true, 0)
# ----------------------------------------------------------------------------------------------------------------------
when isMainModule:
var cfg = newConfig()
cfg.loadString("[common]\nFloats1 = 1,2,3\n[local]\nStr = \"String...\"\nBool = true\nFloats2 = 4, 5, 6\n")
for s in cfg.sections():
echo "Section: " & s
for p in cfg.params(s):
echo " Param: " & p
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