Context

There are no global variables in the Gentee language. One of the ways to exchange data is a special associative array of strings (context). Any function can safely add key-value pairs there or get a value by key. In addition, the context has the ability to substitute other existing values from the context. For example, if the pairs "a": "String A" and "b": "String B" has been defined, then "#a# and #b#" will return "String A and String B". The functions and operators for working with the context are described below.
​Ctx( str input ) str​
​CtxGet( str key ) str​
​CtxIs( str key ) bool​
​CtxSet( str key, str val ) str​
​CtxSet( str key, bool b ) str​
​CtxSet( str key, float f ) str​
​CtxSet( str key, int i ) str​
​CtxValue( str key ) str​
Operators
Operator
Result
Description
# ident
str
The same as CtxGet(key), where ident is the context key.
## str
str
The same as Ctx(str). Specify any expression that returns a string.
ident #= str
str
The same as CtxSet(str key, str s), where ident is the context key.
ident #= bool
str
The same as CtxSet(str key, bool b), where ident is the context key.
ident #= float
str
The same as CtxSet(str key, float f), where ident is the context key.
ident #= int
str
The same as CtxSet(str key, int i), where ident is the context key.
run str {
  str s = ` #AºB#`
  AºB #= `ººº`
  b #= 71
  CD #= `#AºB# #b# == ` 
  return #CD + #b + ##s
}
// ººº 71 == 71 ººº
Functions
Ctx(str input) str
The Ctx function replaces substrings #keyname# in input string with the value of the corresponding key, if it exists.
run str {
    CtxSetBool(`qq`, true)
    CtxSetFloat(`ff`, 3.1415)
    CtxSet(`out`, "it is #qq# that PI equals #ff#")
    return Ctx("#out#. #notexist#")
}
// it is true that PI equals 3.1415. #notexist#
CtxGet(str key) str
The CtxGet function gets the value of the key key, replaces all occurrences of other keys in it, and returns the resulting string. If the specified key is missing, an empty string is returned.
func init {
   CtxSet(`a1`, `end`)
   CtxSet(`a2`, `=#a1#=`)
   CtxSet(`a3`, `+#a2#+#a1#`)
}
​
run str {
    init()
    return CtxGet(`a3`)
}
// +=end=+end
CtxIs(str key) bool
The CtxIs function returns true if there is a value with the specified key in the context. Otherwise, it returns false.
CtxSet(str key, str val) str
The CtxSet function adds a key and a value to the context. If the key already exists, it will be assigned a new value. The function returns the value of the key.
CtxSet(str key, bool b) str
The CtxSet function adds a key and a logical value b to the context. A boolean value will be converted to the string true or false. The function returns the value of the key.
CtxSet(str key, float f) str
The CtxSet function adds a key and a floating-point number f to the context. The number will be converted to a string. The function returns the value of the key.
CtxSet(str key, int i) str
The CtxSet function adds a key and an integer i to the context. The number will be converted to a string. The function returns the value of the key.
CtxValue(str key) str
The CtxValue function returns the value of the key key as is. Unlike the CtxGet function, it does not replace occurrences of other keys. If the specified key is missing, an empty string is returned.
run str {
    CtxSet(`test`, `?value`)
    CtxSet(`param`, `#test# ==`)
    return CtxValue(`param`) + CtxValue(`nop`) + CtxGet(`param`)
}
// #test# ==?value ==

Constants

Cryptography

Last modified 3yr ago

Operator	Result	Description
# ident	str	The same as CtxGet(key), where ident is the context key.
## str	str	The same as Ctx(str). Specify any expression that returns a string.
ident #= str	str	The same as CtxSet(str key, str s), where ident is the context key.
ident #= bool	str	The same as CtxSet(str key, bool b), where ident is the context key.
ident #= float	str	The same as CtxSet(str key, float f), where ident is the context key.
ident #= int	str	The same as CtxSet(str key, int i), where ident is the context key.