envvars

nimony/lib/std/envvars.nim

• proc getEnv(key: string; default: string): string

  Returns the value of the environment variable:idx: named key.

  If the variable does not exist, "" is returned. To distinguish whether a variable exists or it's value is just "", call existsEnv(key) proc.

  See also:

  • existsEnv proc
  • putEnv proc
  • delEnv proc
  • envPairs iterator
• proc existsEnv(key: string): bool

  Checks whether the environment variable named key exists. Returns true if it exists, false otherwise.

  See also:

  • getEnv proc
  • putEnv proc
  • delEnv proc
  • envPairs iterator
• proc putEnv(key: string; val: string)

  Sets the value of the environment variable:idx: named key to val. If an error occurs, OSError is raised.

  See also:

  • getEnv proc
  • existsEnv proc
  • delEnv proc
  • envPairs iterator
• proc delEnv(key: string)

  Deletes the environment variable:idx: named key. If an error occurs, OSError is raised.

  See also:ven

  • getEnv proc
  • existsEnv proc
  • putEnv proc
  • envPairs iterator
• iterator envPairs(): tuple[key: string, value: string]

  Iterate over all environments variables:idx:.

  In the first component of the tuple is the name of the current variable stored, in the second its value.

  See also:

  • getEnv proc
  • existsEnv proc
  • putEnv proc
  • delEnv proc