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@ -144,4 +144,4 @@ Variables and functions can be added to a context both programmatically and ad a
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== Expressions syntax
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See https://cdn.paas.portale-stac.it/howto/go-pkg/expr/doc/Expr.html[Expr documentation] for a complete reference of the expression syntax and available functions.
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See #TODO link to doc/Expr.html#
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423
doc/Expr.adoc
423
doc/Expr.adoc
@ -1036,13 +1036,13 @@ Builtins are collection of function dedicated to specific domains of application
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There are currently several builtin modules. More builtin modules will be added in the future.
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.Available builtin modules
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* <<_module_base,*base*>>: Base expression tools like isNil(), int(), etc.
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* <<_module_fmt,*fmt*>>: String and console formatting functions
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* <<_module_import,*import*>>: Functions <<_import,import()>> and <<_include,include()>>
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* <<_module_iterator,*iterator*>>: Iterator helper functions
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* <<_module_math_arith,*math.arith*>>: Functions <<_add,add()>> and <<_mul,mul()>>
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* <<_module_os_file,*os.file*>>: Operating system file functions
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* <<_module_string,*string*>>: string utilities
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* *base*: Base expression tools like isNil(), int(), etc.
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* *fmt*: String and console formatting functions
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* *import*: Functions import() and include()
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* *iterator*: Iterator helper functions
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* *math.arith*: Functions add() and mul()
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* *os.file*: Operating system file functions
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* *string*: string utilities
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Builtins activation is done by using the [blue]`BUILTIN` operator. All modules except "base" must be explicitly enabled. The syntax is as follows.
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@ -1095,144 +1095,144 @@ Syntax: `isBool(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is boolean, false otherwise.
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.Examples
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`>>>` [blue]`isBool(true)` +
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[green]`true` +
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`>>>` [blue]`isBool(3==2)` +
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[green]`true`
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>>> isBool(true) +
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true +
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>>> isBool(3==2) +
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true
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===== isDict()
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Syntax: `isDict(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is dictionary, false otherwise.
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.Examples
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`>>>` [blue]`isDict({})` +
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[green]`true` +
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`>>>` [blue]`isDict({1: "one", 2: "two"})` +
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[green]`true` +
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`>>>` [blue]`isDict(1:"one")` +
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[red]`Eval Error: denominator must be integer, got string (one)`
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>>> isDict({}) +
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true +
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>>> isDict({1: "one", 2: "two"}) +
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true +
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>>> isDict(1:"one") +
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Eval Error: denominator must be integer, got string (one)
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===== isFloat()
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Syntax: `isFloat(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is float, false otherwise.
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.Examples
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`>>>` [blue]`isFloat(4.)` +
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[green]`true` +
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`>>>` [blue]`isFloat(4)` +
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[green]`false` +
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`>>>` [blue]`isFloat("2.1")` +
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[green]`false`
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>>> isFloat(4.) +
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true +
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>>> isFloat(4) +
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false +
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>>> isFloat("2.1") +
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false
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===== isFract()
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Syntax: `isFract(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is fraction, false otherwise.
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.Examples
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`>>>` [blue]`isFract(4.5)` +
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[green]`false` +
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`>>>` [blue]`isFract(4:5)` +
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[green]`true` +
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`>>>` [blue]`isFract(4)` +
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[green]**`false`** +
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`>>>` [blue]`isFract(1.(3))` +
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[green]`true`
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>>> isFract(4.5) +
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false +
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>>> isFract(4:5) +
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true +
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>>> isFract(4) +
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**false** +
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>>> isFract(1.(3)) +
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true
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===== isList()
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Syntax: `isList(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is list, false otherwise.
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.Examples
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`>>>` [blue]`isList([])` +
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[green]`true` +
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`>>>` [blue]`isList([1, "2"])` +
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[green]`true` +
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`>>>` [blue]`isList(1,2)` +
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[red]`Eval Error: isList(): too many params -- expected 1, got 2`
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>>> isList([]) +
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true +
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>>> isList([1, "2"])
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true
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>>> isList(1,2)
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Eval Error: isList(): too many params -- expected 1, got 2
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===== isNil()
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Syntax: `isNil(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is nil, false otherwise.
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.Examples
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`>>>` [blue]`isNil(nil)` +
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[green]`true` +
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`>>>` [blue]`isNil(1)` +
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[green]`false`
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>>> isNil(nil)
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true
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>>> isNil(1)
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false
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===== isRational()
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Syntax: `isRational(<expr>) -> bool` +
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Returns _true_ if the value type of _<expr>_ is fraction or int, false otherwise.
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.Examples
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`>>>` [blue]`isRational(4.5)` +
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[green]`false` +
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`>>>` [blue]`isRational(4:5)` +
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[green]`true` +
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`>>>` [blue]`isRational(4)` +
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[green]**`true`** +
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`>>>` [blue]`isRational(1.(3))` +
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[green]`true`
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>>> isRational(4.5) +
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false +
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>>> isRational(4:5) +
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true +
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>>> isRational(4) +
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**true** +
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>>> isRational(1.(3)) +
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true
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===== isString()
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Syntax: `isString(<expr>) -> bool` +
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Returns a boolean value , false otherwise.
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.Examples
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`>>>` [blue]`isString("ciao")` +
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[green]`true` +
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`>>>` [blue]`isString(2)` +
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[green]`false` +
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`>>>` [blue]`isString(2+"2")` +
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[green]`true`
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>>> isString("ciao") +
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true +
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>>> isString(2) +
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false +
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>>> isString(2+"2") +
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true
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===== bool()
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Syntax: `bool(<expr>) -> bool` +
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Returns a _boolean_ value consisent to the value of the expression.
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.Examples
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`>>>` [blue]`bool(1)` +
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[green]`true` +
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`>>>` [blue]`bool(0)` +
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[green]`false` +
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`>>>` [blue]`bool("")` +
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[green]`false` +
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`>>>` [blue]`bool([])` +
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[green]`false` +
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`>>>` [blue]`bool([1])` +
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[green]`true` +
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`>>>` [blue]`bool({})` +
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[green]`false` +
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`>>>` [blue]`bool({1: "one"})` +
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[green]`true`
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>>> bool(1)
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true
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>>> bool(0)
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false
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>>> bool("")
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false
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>>> bool([])
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false
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>>> bool([1])
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true
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>>> bool({})
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false
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>>> bool({1: "one"})
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true
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===== int()
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Syntax: `int(<expr>) -> int` +
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Returns an _integer_ value consistent with the value of the expression.
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.Examples
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`>>>` [blue]`int(2)` +
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[green]`2` +
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`>>>` [blue]`int("2")` +
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[green]`2` +
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`>>>` [blue]`int("0x1")` +
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[red]`Eval Error: strconv.Atoi: parsing "0x1": invalid syntax` +
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`>>>` [blue]`int(0b10)` +
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[green]`2` +
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`>>>` [blue]`int(0o2)` +
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[green]`2` +
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`>>>` [blue]`int(0x2)` +
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[green]`2` +
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`>>>` [blue]`int(1.8)` +
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[green]`1` +
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`>>>` [blue]`int(5:2)` +
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[green]`2` +
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`>>>` [blue]`int([])` +
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[red]`Eval Error: int(): can't convert list to int` +
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`>>>` [blue]`int(true)` +
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[green]`1` +
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`>>>` [blue]`int(false)` +
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[green]`0`
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>>> int(2) +
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2 +
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>>> int("2") +
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2 +
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>>> int("0x1") +
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Eval Error: strconv.Atoi: parsing "0x1": invalid syntax +
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>>> int(0b10) +
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2 +
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>>> int(0o2) +
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2 +
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>>> int(0x2) +
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2 +
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>>> int(1.8) +
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1 +
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>>> int(5:2) +
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2 +
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>>> int([]) +
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Eval Error: int(): can't convert list to int+
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>>> int(true) +
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1 +
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>>> int(false) +
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0
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===== dec()
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@ -1240,66 +1240,66 @@ Syntax: `dec(<expr>) -> float` +
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Returns a _float_ value consistent with the value of the expression.
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.Examples
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`>>>` [blue]`dec(2)` +
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[green]`2` +
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`>>>` [blue]`dec(2.1)` +
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[green]`2.1` +
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`>>>` [blue]`dec(2.3(1))` +
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[green]`2.311111111111111` +
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`>>>` [blue]`dec("3.14")` +
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[green]`3.14` +
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`>>>` [blue]`dec(3:4)` +
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[green]`0.75` +
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`>>>` [blue]`dec(true)` +
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[green]`1` +
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`>>>` [blue]`dec(false)` +
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[green]`0`
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>>> dec(2) +
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2 +
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>>> dec(2.1) +
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2.1 +
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>>> dec(2.3(1)) +
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2.311111111111111 +
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>>> dec("3.14") +
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3.14 +
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>>> dec(3:4) +
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0.75 +
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>>> dec(true) +
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1 +
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>>> dec(false) +
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0
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===== string()
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Syntax: `string(<expr>) -> string` +
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Returns a _string_ value consistent with the value of the expression.
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.Examples
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`>>>` [blue]`string(2)` +
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[green]`"2"` +
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`>>>` [blue]`string(0.8)` +
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[green]`"0.8"` +
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`>>>` [blue]`string([1,2])` +
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[green]`"[1, 2]"` +
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`>>>` [blue]`string({1: "one", 2: "two"})` +
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[green]`"{1: "one", 2: "two"}"` +
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`>>>` [blue]`string(2:5)` +
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[green]`"2:5"` +
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`>>>` [blue]`string(3==2)` +
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[green]`"false"`
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>>> string(2) +
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"2" +
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>>> string(0.8) +
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"0.8" +
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>>> string([1,2]) +
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"[1, 2]" +
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>>> string({1: "one", 2: "two"}) +
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"{1: "one", 2: "two"}" +
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>>> string(2:5) +
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"2:5" +
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>>> string(3==2) +
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"false"
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===== fract()
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Syntax: `fract(<expr>) -> fraction` +
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Returns a _fraction_ value consistent with the value of the expression.
|
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|
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.Examples
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`>>>` [blue]`fract(2)` +
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[green]`2:1` +
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`>>>` [blue]`fract(2.5)` +
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[green]`5:2` +
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`>>>` [blue]`fract("2.5")` +
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[green]`5:2` +
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`>>>` [blue]`fract(1.(3))` +
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[green]`4:3` +
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`>>>` [blue]`fract([2])` +
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[red]`Eval Error: fract(): can't convert list to float` +
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`>>>` [blue]`fract(false)` +
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[green]`0:1` +
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`>>>` [blue]`fract(true)` +
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[green]`1:1`
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>>> fract(2) +
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2:1 +
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>>> fract(2.5) +
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5:2 +
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>>> fract("2.5") +
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5:2 +
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>>> fract(1.(3)) +
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4:3 +
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>>> fract([2]) +
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Eval Error: fract(): can't convert list to float +
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>>> fract(false) +
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0:1 +
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>>> fract(true) +
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1:1
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===== eval()
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Syntax: `eval(<string-expr>) -> any` +
|
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Computes and returns the value of the [.underline]#string# expression.
|
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|
||||
.Examples
|
||||
`>>>` [blue]`eval( "2 + fract(1.(3))" )` +
|
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[green]`10:3`
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>>> eval( "2 + fract(1.(3))" ) +
|
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10:3
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|
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===== var()
|
||||
Syntax: +
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@ -1309,14 +1309,14 @@ Syntax: +
|
||||
This function allows you to define variables whose names must include special characters. The first form of the function allows you to define a variable with a name specified by the first parameter and assign it the value of the second parameter. The second form only returns the value of the variable with the specified name.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`var("$x", 3+9)` +
|
||||
[green]`12` +
|
||||
`>>>` [blue]`var("$x")` +
|
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[green]`12` +
|
||||
`>>>` [blue]`var("gain%", var("$x"))` +
|
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[green]`12` +
|
||||
`>>>` [blue]`var("gain%", var("$x")+1)` +
|
||||
[green]`13`
|
||||
>>> var("$x", 3+9) +
|
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12 +
|
||||
>>> var("$x") +
|
||||
12 +
|
||||
>>> var("gain%", var("$x")) +
|
||||
12 +
|
||||
>>> var("gain%", var("$x")+1) +
|
||||
13
|
||||
|
||||
==== Module "fmt"
|
||||
|
||||
@ -1346,24 +1346,22 @@ Syntax: +
|
||||
Returns the sum of the values of the parameters. The parameters can be of any numeric type for which the [blue]`+` operator is defined. The result type depends on the types of the parameters. If all parameters are of the same type, the result is of that type. If the parameters are of different types, the result is of the type that can represent all the parameter types without loss of information. For example, if the parameters are a mix of integers and floats, the result is a float. If the parameters are a mix of number types, the result has the type of the most general one.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`builtin "math.arith"` +
|
||||
[green]`1` +
|
||||
`>>>` [blue]`add(1,2,3)` +
|
||||
[green]`6` +
|
||||
`>>>` [blue]`add(1.1,2.1,3.1)` +
|
||||
[green]`6.300000000000001` +
|
||||
`>>>` [blue]`add("1","2","3")` +
|
||||
[red]`Eval Error: add(): param nr 1 (1 in 0) has wrong type string, number expected` +
|
||||
`>>>` [blue]`add(1:3, 2:3, 3:3)` +
|
||||
[green]`2:1` +
|
||||
`>>>` [blue]`add(1, "2")` +
|
||||
[red]`Eval Error: add(): param nr 2 (2 in 0) has wrong type string, number expected` +
|
||||
`>>>` [blue]`add([1,2,3])` +
|
||||
[green]`6` +
|
||||
`>>>` [blue]`iterator=$([1,2,3]); add(iterator)` +
|
||||
[green]`6` +
|
||||
`>>>` [blue]`add($([1,2,3]))` +
|
||||
[green]`6`
|
||||
>>> add(1,2,3) +
|
||||
6
|
||||
>>> add(1.1,2.1,3.1) +
|
||||
6.300000000000001 +
|
||||
>>> add("1","2","3") +
|
||||
Eval Error: add(): param nr 1 (1 in 0) has wrong type string, number expected +
|
||||
>>> add(1:3, 2:3, 3:3) +
|
||||
2:1 +
|
||||
>>> add(1, "2") +
|
||||
Eval Error: add(): param nr 2 (2 in 0) has wrong type string, number expected +
|
||||
>>> add([1,2,3]) +
|
||||
6 +
|
||||
>>> iterator=$([1,2,3]); add(iterator) +
|
||||
6 +
|
||||
>>> add($([1,2,3])) +
|
||||
6
|
||||
|
||||
===== mul()
|
||||
Syntax: +
|
||||
@ -1371,13 +1369,8 @@ Syntax: +
|
||||
`{4sp}mul(<list-of-num-expr>]) -> any` +
|
||||
`{4sp}mul(<iterator-over-num-values>) -> any`
|
||||
|
||||
Same as <<_add,add()>> but returns the product of the values of the parameters.
|
||||
Same as add() but returns the product of the values of the parameters.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`builtin "math.arith"` +
|
||||
[green]`1` +
|
||||
`>>>` [blue]`mul(2,3,4)` +
|
||||
[green]`24`
|
||||
|
||||
==== Module "os.file"
|
||||
|
||||
@ -1399,131 +1392,45 @@ Same as <<_add,add()>> but returns the product of the values of the parameters.
|
||||
==== Module "string"
|
||||
|
||||
===== strJoin()
|
||||
Syntax: +
|
||||
`{4sp}strJoin(<separator>, <item> ...) -> string`
|
||||
|
||||
Returns a string obtained by concatenating the string items (sarting from the second argument), separated by the string value of the separator.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strJoin(", ", "one", "two", "three")` +
|
||||
[green]`"one, two, three"` +
|
||||
`>>>` [blue]`strJoin(", ", ["one", "two", "three"])` +
|
||||
[green]`"one, two, three"`
|
||||
|
||||
===== strSub()
|
||||
Syntax: +
|
||||
`{4sp}strSub(<string>, <start-index>=0, <count>=-1) -> string`
|
||||
|
||||
Returns a substring of the specified string starting at the specified index and having the specified length. If the start index is negative, it is interpreted as an offset from the end of the string. If the count is negative, it means to take all characters until the end of the string.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strSub("Hello, world!", 7, 5)` +
|
||||
[green]`"world"` +
|
||||
`>>>` [blue]`strSub("Hello, world!", -6, 5)` +
|
||||
[green]`"world"` +
|
||||
`>>>` [blue]`strSub("Hello, world!", 7)` +
|
||||
[green]`"world!"` +
|
||||
`>>>` [blue]`strSub("Hello, world!", -6)` +
|
||||
[green]`"world!"`
|
||||
|
||||
===== strSplit()
|
||||
Syntax: +
|
||||
`{4sp}strSplit(<string>, <separator>="", <count>=-1) -> list`
|
||||
|
||||
Returns a list of substrings obtained by splitting the specified string using the specified separator. If the separator is an empty string, the string is split into individual characters. If the count is negative, it means to split all occurrences of the separator.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strSplit("one, two, three", ", ")` +
|
||||
[green]`["one", "two", "three"]` +
|
||||
`>>>` [blue]`strSplit("one, two, three", ", ", 2)` +
|
||||
[green]`["one", "two, three"]` +
|
||||
`>>>` [blue]`strSplit("one, two, three")` +
|
||||
[green]`["o", "n", "e", ",", " ", "t", "w", "o", ",", " ", "t", "h", "r", "e", "e"]`
|
||||
|
||||
===== strTrim()
|
||||
Syntax: +
|
||||
`{4sp}strTrim(<string>) -> string`
|
||||
|
||||
Returns a string obtained by removing leading and trailing whitespace characters from the specified string.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strTrim(" Hello, world! ")` +
|
||||
[green]`"Hello, world!"`
|
||||
|
||||
===== strStartsWith()
|
||||
Syntax: +
|
||||
`{4sp}strStartsWith(<string>, <prefix> ...) -> bool`
|
||||
|
||||
Returns a boolean indicating whether the specified string starts with any of the given prefixes.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strStartsWith("Hello, world!", "Hello")` +
|
||||
[green]`true` +
|
||||
`>>>` [blue]`strStartsWith("Hello, world!", "world")` +
|
||||
[green]`false` +
|
||||
`>>>` [blue]`strStartsWith("Hello, world!", "Hi", "He")` +
|
||||
[green]`true`
|
||||
|
||||
|
||||
===== strEndsWith()
|
||||
Syntax: +
|
||||
`{4sp}strEndsWith(<string>, <suffix> ...) -> bool`
|
||||
|
||||
Returns a boolean indicating whether the specified string ends with any of the given suffixes.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strEndsWith("Hello, world!", "world!")` +
|
||||
[green]`true` +
|
||||
`>>>` [blue]`strEndsWith("Hello, world!", "Hello")` +
|
||||
[green]`false` +
|
||||
`>>>` [blue]`strEndsWith("Hello, world!", "Hi", "world!")` +
|
||||
[green]`true`
|
||||
|
||||
|
||||
===== strUpper()
|
||||
Syntax: +
|
||||
`{4sp}strUpper(<string>) -> string`
|
||||
|
||||
Returns a string obtained by converting all characters of the specified string to uppercase.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strUpper("Hello, world!")` +
|
||||
[green]`"HELLO, WORLD!"`
|
||||
|
||||
===== strLower()
|
||||
Syntax: +
|
||||
`{4sp}strLower(<string>) -> string`
|
||||
|
||||
Returns a string obtained by converting all characters of the specified string to lowercase.
|
||||
|
||||
.Examples
|
||||
`>>>` [blue]`strLower("Hello, world!")` +
|
||||
[green]`"hello, world!"`
|
||||
|
||||
== Iterators
|
||||
Iterators are objects that can be used to traverse collections, such as lists and dictionaries. They are created by providing a _data-source_ object, the collection, in a `$(<data-source>)` expression. Once an iterator is created, it can be used to access the elements of the collection one by one.
|
||||
|
||||
In general, data-sources are objects that can be iterated over. They are defined as dictionaries having the key `next` whose value is a function that returns the next element of the collection and updates the state of the iterator. The _next_ function must return a special value, [blue]_nil_, when there are no more elements to iterate over.
|
||||
|
||||
Lists and dictionaries are implicit data-sources. The syntax for creating an iterator is as follows.
|
||||
Lists and, soon, dictionaries, are implicit data-sources. The syntax for creating an iterator is as follows.
|
||||
|
||||
.Iterator creation syntax
|
||||
====
|
||||
*_iterator_* = "**$(**" _data-source_ "**)**" +
|
||||
_data-source_ = _explicit_ | _list-spec_ | _dict-spec_ | _custom-data-source_
|
||||
|
||||
_explicit_ = _any-expr_ { "**,**" _any-expr_ }
|
||||
_explicit_ = _any-expr_ { "," _any-expr_ }
|
||||
|
||||
_list-spec_ = _list_ _range-options_ +
|
||||
_list_ = "**[**" _any-expr_ { "**,**" _any-expr_ } "**]**" +
|
||||
_range-options_ = [ "**,**" _start-index_ [ "**,**" _end-index_ [ "**,**" _step_ ]]] +
|
||||
_list_ = "**[**" _any-expr_ { "," _any-expr_ } "**]**" +
|
||||
_range-options_ = [ "," _start-index_ [ "," _end-index_ [ "," _step_ ]]] +
|
||||
_start-index_, _end-index_, _step_ = _integer-expr_
|
||||
|
||||
_dict-spec_ = _dict_ _dict-options_ +
|
||||
_dict_ = "**{**" _key-value-pair_ { "**,**" _key-value-pair_ } "**}**" +
|
||||
_key-value-pair_ = _scalar-value_ "**:**" _any-expr_ +
|
||||
_dict_ = "**{**" _key-value-pair_ { "," _key-value-pair_ } "**}**" +
|
||||
_key-value-pair_ = _scalar-value_ ":" _any-expr_ +
|
||||
_scalar-value_ = _string_ | _number_ | _boolean_ +
|
||||
_dict-options_ = [ "**,**" _sort-order_ [ "**,**" _iter-mode_ ] ] +
|
||||
_dict-options_ = [ "," _sort-order_ [ "," _iter-mode_ ] ] +
|
||||
_sort-order_ = _asc-order_ | _desc-order_ | _no-sort_ | _default-order_ +
|
||||
_asc-order_ = "**asc**" | "**a**" +
|
||||
_desc-order_ = "**desc**" | "**d**" +
|
||||
|
||||
467
doc/Expr.html
467
doc/Expr.html
@ -2698,25 +2698,25 @@ The clone modifier <code class="blue">@</code> does not make a variable a refere
|
||||
<div class="title">Available builtin modules</div>
|
||||
<ul>
|
||||
<li>
|
||||
<p><a href="#_module_base"><strong>base</strong></a>: Base expression tools like isNil(), int(), etc.</p>
|
||||
<p><strong>base</strong>: Base expression tools like isNil(), int(), etc.</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#_module_fmt"><strong>fmt</strong></a>: String and console formatting functions</p>
|
||||
<p><strong>fmt</strong>: String and console formatting functions</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#_module_import"><strong>import</strong></a>: Functions <a href="#_import">import()</a> and <a href="#_include">include()</a></p>
|
||||
<p><strong>import</strong>: Functions import() and include()</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#_module_iterator"><strong>iterator</strong></a>: Iterator helper functions</p>
|
||||
<p><strong>iterator</strong>: Iterator helper functions</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#_module_math_arith"><strong>math.arith</strong></a>: Functions <a href="#_add">add()</a> and <a href="#_mul">mul()</a></p>
|
||||
<p><strong>math.arith</strong>: Functions add() and mul()</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#_module_os_file"><strong>os.file</strong></a>: Operating system file functions</p>
|
||||
<p><strong>os.file</strong>: Operating system file functions</p>
|
||||
</li>
|
||||
<li>
|
||||
<p><a href="#_module_string"><strong>string</strong></a>: string utilities</p>
|
||||
<p><strong>string</strong>: string utilities</p>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
@ -2830,10 +2830,10 @@ Returns <em>true</em> if the value type of <em><expr></em> is boolean, fal
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isBool(true)</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isBool(3==2)</code><br>
|
||||
<code class="green">true</code></p>
|
||||
<p>>>> isBool(true)<br>
|
||||
true<br>
|
||||
>>> isBool(3==2)<br>
|
||||
true</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2844,12 +2844,12 @@ Returns <em>true</em> if the value type of <em><expr></em> is dictionary,
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isDict({})</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isDict({1: "one", 2: "two"})</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isDict(1:"one")</code><br>
|
||||
<code class="red">Eval Error: denominator must be integer, got string (one)</code></p>
|
||||
<p>>>> isDict({})<br>
|
||||
true<br>
|
||||
>>> isDict({1: "one", 2: "two"})<br>
|
||||
true<br>
|
||||
>>> isDict(1:"one")<br>
|
||||
Eval Error: denominator must be integer, got string (one)</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2860,12 +2860,12 @@ Returns <em>true</em> if the value type of <em><expr></em> is float, false
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isFloat(4.)</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isFloat(4)</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">isFloat("2.1")</code><br>
|
||||
<code class="green">false</code></p>
|
||||
<p>>>> isFloat(4.)<br>
|
||||
true<br>
|
||||
>>> isFloat(4)<br>
|
||||
false<br>
|
||||
>>> isFloat("2.1")<br>
|
||||
false</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2876,14 +2876,14 @@ Returns <em>true</em> if the value type of <em><expr></em> is fraction, fa
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isFract(4.5)</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">isFract(4:5)</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isFract(4)</code><br>
|
||||
<strong class="green"><code>false</code></strong><br>
|
||||
<code>>>></code> <code class="blue">isFract(1.(3))</code><br>
|
||||
<code class="green">true</code></p>
|
||||
<p>>>> isFract(4.5)<br>
|
||||
false<br>
|
||||
>>> isFract(4:5)<br>
|
||||
true<br>
|
||||
>>> isFract(4)<br>
|
||||
<strong>false</strong><br>
|
||||
>>> isFract(1.(3))<br>
|
||||
true</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2894,12 +2894,12 @@ Returns <em>true</em> if the value type of <em><expr></em> is list, false
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isList([])</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isList([1, "2"])</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isList(1,2)</code><br>
|
||||
<code class="red">Eval Error: isList(): too many params — expected 1, got 2</code></p>
|
||||
<p>>>> isList([])<br>
|
||||
true<br>
|
||||
>>> isList([1, "2"])
|
||||
true
|
||||
>>> isList(1,2)
|
||||
Eval Error: isList(): too many params — expected 1, got 2</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2910,10 +2910,10 @@ Returns <em>true</em> if the value type of <em><expr></em> is nil, false o
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isNil(nil)</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isNil(1)</code><br>
|
||||
<code class="green">false</code></p>
|
||||
<p>>>> isNil(nil)
|
||||
true
|
||||
>>> isNil(1)
|
||||
false</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2924,14 +2924,14 @@ Returns <em>true</em> if the value type of <em><expr></em> is fraction or
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isRational(4.5)</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">isRational(4:5)</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isRational(4)</code><br>
|
||||
<strong class="green"><code>true</code></strong><br>
|
||||
<code>>>></code> <code class="blue">isRational(1.(3))</code><br>
|
||||
<code class="green">true</code></p>
|
||||
<p>>>> isRational(4.5)<br>
|
||||
false<br>
|
||||
>>> isRational(4:5)<br>
|
||||
true<br>
|
||||
>>> isRational(4)<br>
|
||||
<strong>true</strong><br>
|
||||
>>> isRational(1.(3))<br>
|
||||
true</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2942,12 +2942,12 @@ Returns a boolean value , false otherwise.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">isString("ciao")</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">isString(2)</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">isString(2+"2")</code><br>
|
||||
<code class="green">true</code></p>
|
||||
<p>>>> isString("ciao")<br>
|
||||
true<br>
|
||||
>>> isString(2)<br>
|
||||
false<br>
|
||||
>>> isString(2+"2")<br>
|
||||
true</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2958,20 +2958,20 @@ Returns a <em>boolean</em> value consisent to the value of the expression.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">bool(1)</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">bool(0)</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">bool("")</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">bool([])</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">bool([1])</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">bool({})</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">bool({1: "one"})</code><br>
|
||||
<code class="green">true</code></p>
|
||||
<p>>>> bool(1)
|
||||
true
|
||||
>>> bool(0)
|
||||
false
|
||||
>>> bool("")
|
||||
false
|
||||
>>> bool([])
|
||||
false
|
||||
>>> bool([1])
|
||||
true
|
||||
>>> bool({})
|
||||
false
|
||||
>>> bool({1: "one"})
|
||||
true</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -2982,28 +2982,28 @@ Returns an <em>integer</em> value consistent with the value of the expression.</
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">int(2)</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">int("2")</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">int("0x1")</code><br>
|
||||
<code class="red">Eval Error: strconv.Atoi: parsing "0x1": invalid syntax</code><br>
|
||||
<code>>>></code> <code class="blue">int(0b10)</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">int(0o2)</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">int(0x2)</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">int(1.8)</code><br>
|
||||
<code class="green">1</code><br>
|
||||
<code>>>></code> <code class="blue">int(5:2)</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">int([])</code><br>
|
||||
<code class="red">Eval Error: int(): can’t convert list to int</code><br>
|
||||
<code>>>></code> <code class="blue">int(true)</code><br>
|
||||
<code class="green">1</code><br>
|
||||
<code>>>></code> <code class="blue">int(false)</code><br>
|
||||
<code class="green">0</code></p>
|
||||
<p>>>> int(2)<br>
|
||||
2<br>
|
||||
>>> int("2")<br>
|
||||
2<br>
|
||||
>>> int("0x1")<br>
|
||||
Eval Error: strconv.Atoi: parsing "0x1": invalid syntax<br>
|
||||
>>> int(0b10)<br>
|
||||
2<br>
|
||||
>>> int(0o2)<br>
|
||||
2<br>
|
||||
>>> int(0x2)<br>
|
||||
2<br>
|
||||
>>> int(1.8)<br>
|
||||
1<br>
|
||||
>>> int(5:2)<br>
|
||||
2<br>
|
||||
>>> int([])<br>
|
||||
Eval Error: int(): can’t convert list to int+
|
||||
>>> int(true)<br>
|
||||
1<br>
|
||||
>>> int(false)<br>
|
||||
0</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -3014,20 +3014,20 @@ Returns a <em>float</em> value consistent with the value of the expression.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">dec(2)</code><br>
|
||||
<code class="green">2</code><br>
|
||||
<code>>>></code> <code class="blue">dec(2.1)</code><br>
|
||||
<code class="green">2.1</code><br>
|
||||
<code>>>></code> <code class="blue">dec(2.3(1))</code><br>
|
||||
<code class="green">2.311111111111111</code><br>
|
||||
<code>>>></code> <code class="blue">dec("3.14")</code><br>
|
||||
<code class="green">3.14</code><br>
|
||||
<code>>>></code> <code class="blue">dec(3:4)</code><br>
|
||||
<code class="green">0.75</code><br>
|
||||
<code>>>></code> <code class="blue">dec(true)</code><br>
|
||||
<code class="green">1</code><br>
|
||||
<code>>>></code> <code class="blue">dec(false)</code><br>
|
||||
<code class="green">0</code></p>
|
||||
<p>>>> dec(2)<br>
|
||||
2<br>
|
||||
>>> dec(2.1)<br>
|
||||
2.1<br>
|
||||
>>> dec(2.3(1))<br>
|
||||
2.311111111111111<br>
|
||||
>>> dec("3.14")<br>
|
||||
3.14<br>
|
||||
>>> dec(3:4)<br>
|
||||
0.75<br>
|
||||
>>> dec(true)<br>
|
||||
1<br>
|
||||
>>> dec(false)<br>
|
||||
0</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -3038,18 +3038,18 @@ Returns a <em>string</em> value consistent with the value of the expression.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">string(2)</code><br>
|
||||
<code class="green">"2"</code><br>
|
||||
<code>>>></code> <code class="blue">string(0.8)</code><br>
|
||||
<code class="green">"0.8"</code><br>
|
||||
<code>>>></code> <code class="blue">string([1,2])</code><br>
|
||||
<code class="green">"[1, 2]"</code><br>
|
||||
<code>>>></code> <code class="blue">string({1: "one", 2: "two"})</code><br>
|
||||
<code class="green">"{1: "one", 2: "two"}"</code><br>
|
||||
<code>>>></code> <code class="blue">string(2:5)</code><br>
|
||||
<code class="green">"2:5"</code><br>
|
||||
<code>>>></code> <code class="blue">string(3==2)</code><br>
|
||||
<code class="green">"false"</code></p>
|
||||
<p>>>> string(2)<br>
|
||||
"2"<br>
|
||||
>>> string(0.8)<br>
|
||||
"0.8"<br>
|
||||
>>> string([1,2])<br>
|
||||
"[1, 2]"<br>
|
||||
>>> string({1: "one", 2: "two"})<br>
|
||||
"{1: "one", 2: "two"}"<br>
|
||||
>>> string(2:5)<br>
|
||||
"2:5"<br>
|
||||
>>> string(3==2)<br>
|
||||
"false"</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -3060,20 +3060,20 @@ Returns a <em>fraction</em> value consistent with the value of the expression.</
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">fract(2)</code><br>
|
||||
<code class="green">2:1</code><br>
|
||||
<code>>>></code> <code class="blue">fract(2.5)</code><br>
|
||||
<code class="green">5:2</code><br>
|
||||
<code>>>></code> <code class="blue">fract("2.5")</code><br>
|
||||
<code class="green">5:2</code><br>
|
||||
<code>>>></code> <code class="blue">fract(1.(3))</code><br>
|
||||
<code class="green">4:3</code><br>
|
||||
<code>>>></code> <code class="blue">fract([2])</code><br>
|
||||
<code class="red">Eval Error: fract(): can’t convert list to float</code><br>
|
||||
<code>>>></code> <code class="blue">fract(false)</code><br>
|
||||
<code class="green">0:1</code><br>
|
||||
<code>>>></code> <code class="blue">fract(true)</code><br>
|
||||
<code class="green">1:1</code></p>
|
||||
<p>>>> fract(2)<br>
|
||||
2:1<br>
|
||||
>>> fract(2.5)<br>
|
||||
5:2<br>
|
||||
>>> fract("2.5")<br>
|
||||
5:2<br>
|
||||
>>> fract(1.(3))<br>
|
||||
4:3<br>
|
||||
>>> fract([2])<br>
|
||||
Eval Error: fract(): can’t convert list to float<br>
|
||||
>>> fract(false)<br>
|
||||
0:1<br>
|
||||
>>> fract(true)<br>
|
||||
1:1</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -3084,8 +3084,8 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">eval( "2 + fract(1.(3))" )</code><br>
|
||||
<code class="green">10:3</code></p>
|
||||
<p>>>> eval( "2 + fract(1.(3))" )<br>
|
||||
10:3</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -3100,14 +3100,14 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">var("$x", 3+9)</code><br>
|
||||
<code class="green">12</code><br>
|
||||
<code>>>></code> <code class="blue">var("$x")</code><br>
|
||||
<code class="green">12</code><br>
|
||||
<code>>>></code> <code class="blue">var("gain%", var("$x"))</code><br>
|
||||
<code class="green">12</code><br>
|
||||
<code>>>></code> <code class="blue">var("gain%", var("$x")+1)</code><br>
|
||||
<code class="green">13</code></p>
|
||||
<p>>>> var("$x", 3+9)<br>
|
||||
12<br>
|
||||
>>> var("$x")<br>
|
||||
12<br>
|
||||
>>> var("gain%", var("$x"))<br>
|
||||
12<br>
|
||||
>>> var("gain%", var("$x")+1)<br>
|
||||
13</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
@ -3160,24 +3160,22 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">builtin "math.arith"</code><br>
|
||||
<code class="green">1</code><br>
|
||||
<code>>>></code> <code class="blue">add(1,2,3)</code><br>
|
||||
<code class="green">6</code><br>
|
||||
<code>>>></code> <code class="blue">add(1.1,2.1,3.1)</code><br>
|
||||
<code class="green">6.300000000000001</code><br>
|
||||
<code>>>></code> <code class="blue">add("1","2","3")</code><br>
|
||||
<code class="red">Eval Error: add(): param nr 1 (1 in 0) has wrong type string, number expected</code><br>
|
||||
<code>>>></code> <code class="blue">add(1:3, 2:3, 3:3)</code><br>
|
||||
<code class="green">2:1</code><br>
|
||||
<code>>>></code> <code class="blue">add(1, "2")</code><br>
|
||||
<code class="red">Eval Error: add(): param nr 2 (2 in 0) has wrong type string, number expected</code><br>
|
||||
<code>>>></code> <code class="blue">add([1,2,3])</code><br>
|
||||
<code class="green">6</code><br>
|
||||
<code>>>></code> <code class="blue">iterator=$([1,2,3]); add(iterator)</code><br>
|
||||
<code class="green">6</code><br>
|
||||
<code>>>></code> <code class="blue">add($([1,2,3]))</code><br>
|
||||
<code class="green">6</code></p>
|
||||
<p>>>> add(1,2,3)<br>
|
||||
6
|
||||
>>> add(1.1,2.1,3.1)<br>
|
||||
6.300000000000001<br>
|
||||
>>> add("1","2","3")<br>
|
||||
Eval Error: add(): param nr 1 (1 in 0) has wrong type string, number expected<br>
|
||||
>>> add(1:3, 2:3, 3:3)<br>
|
||||
2:1<br>
|
||||
>>> add(1, "2")<br>
|
||||
Eval Error: add(): param nr 2 (2 in 0) has wrong type string, number expected<br>
|
||||
>>> add([1,2,3])<br>
|
||||
6<br>
|
||||
>>> iterator=$([1,2,3]); add(iterator)<br>
|
||||
6<br>
|
||||
>>> add($([1,2,3]))<br>
|
||||
6</p>
|
||||
</div>
|
||||
</div>
|
||||
<div class="sect4">
|
||||
@ -3189,14 +3187,7 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
<code>    mul(<iterator-over-num-values>) → any</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Same as <a href="#_add">add()</a> but returns the product of the values of the parameters.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">builtin "math.arith"</code><br>
|
||||
<code class="green">1</code><br>
|
||||
<code>>>></code> <code class="blue">mul(2,3,4)</code><br>
|
||||
<code class="green">24</code></p>
|
||||
<p>Same as add() but returns the product of the values of the parameters.</p>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
@ -3235,143 +3226,35 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
<h4 id="_module_string"><a class="anchor" href="#_module_string"></a><a class="link" href="#_module_string">7.1.7. Module "string"</a></h4>
|
||||
<div class="sect4">
|
||||
<h5 id="_strjoin"><a class="anchor" href="#_strjoin"></a><a class="link" href="#_strjoin">strJoin()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strJoin(<separator>, <item> …​) → string</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a string obtained by concatenating the string items (sarting from the second argument), separated by the string value of the separator.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strJoin(", ", "one", "two", "three")</code><br>
|
||||
<code class="green">"one, two, three"</code><br>
|
||||
<code>>>></code> <code class="blue">strJoin(", ", ["one", "two", "three"])</code><br>
|
||||
<code class="green">"one, two, three"</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strsub"><a class="anchor" href="#_strsub"></a><a class="link" href="#_strsub">strSub()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strSub(<string>, <start-index>=0, <count>=-1) → string</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a substring of the specified string starting at the specified index and having the specified length. If the start index is negative, it is interpreted as an offset from the end of the string. If the count is negative, it means to take all characters until the end of the string.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strSub("Hello, world!", 7, 5)</code><br>
|
||||
<code class="green">"world"</code><br>
|
||||
<code>>>></code> <code class="blue">strSub("Hello, world!", -6, 5)</code><br>
|
||||
<code class="green">"world"</code><br>
|
||||
<code>>>></code> <code class="blue">strSub("Hello, world!", 7)</code><br>
|
||||
<code class="green">"world!"</code><br>
|
||||
<code>>>></code> <code class="blue">strSub("Hello, world!", -6)</code><br>
|
||||
<code class="green">"world!"</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strsplit"><a class="anchor" href="#_strsplit"></a><a class="link" href="#_strsplit">strSplit()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strSplit(<string>, <separator>="", <count>=-1) → list</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a list of substrings obtained by splitting the specified string using the specified separator. If the separator is an empty string, the string is split into individual characters. If the count is negative, it means to split all occurrences of the separator.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strSplit("one, two, three", ", ")</code><br>
|
||||
<code class="green">["one", "two", "three"]</code><br>
|
||||
<code>>>></code> <code class="blue">strSplit("one, two, three", ", ", 2)</code><br>
|
||||
<code class="green">["one", "two, three"]</code><br>
|
||||
<code>>>></code> <code class="blue">strSplit("one, two, three")</code><br>
|
||||
<code class="green">["o", "n", "e", ",", " ", "t", "w", "o", ",", " ", "t", "h", "r", "e", "e"]</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strtrim"><a class="anchor" href="#_strtrim"></a><a class="link" href="#_strtrim">strTrim()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strTrim(<string>) → string</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a string obtained by removing leading and trailing whitespace characters from the specified string.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strTrim(" Hello, world! ")</code><br>
|
||||
<code class="green">"Hello, world!"</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strstartswith"><a class="anchor" href="#_strstartswith"></a><a class="link" href="#_strstartswith">strStartsWith()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strStartsWith(<string>, <prefix> …​) → bool</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a boolean indicating whether the specified string starts with any of the given prefixes.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strStartsWith("Hello, world!", "Hello")</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">strStartsWith("Hello, world!", "world")</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">strStartsWith("Hello, world!", "Hi", "He")</code><br>
|
||||
<code class="green">true</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strendswith"><a class="anchor" href="#_strendswith"></a><a class="link" href="#_strendswith">strEndsWith()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strEndsWith(<string>, <suffix> …​) → bool</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a boolean indicating whether the specified string ends with any of the given suffixes.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strEndsWith("Hello, world!", "world!")</code><br>
|
||||
<code class="green">true</code><br>
|
||||
<code>>>></code> <code class="blue">strEndsWith("Hello, world!", "Hello")</code><br>
|
||||
<code class="green">false</code><br>
|
||||
<code>>>></code> <code class="blue">strEndsWith("Hello, world!", "Hi", "world!")</code><br>
|
||||
<code class="green">true</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strupper"><a class="anchor" href="#_strupper"></a><a class="link" href="#_strupper">strUpper()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strUpper(<string>) → string</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a string obtained by converting all characters of the specified string to uppercase.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strUpper("Hello, world!")</code><br>
|
||||
<code class="green">"HELLO, WORLD!"</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class="sect4">
|
||||
<h5 id="_strlower"><a class="anchor" href="#_strlower"></a><a class="link" href="#_strlower">strLower()</a></h5>
|
||||
<div class="paragraph">
|
||||
<p>Syntax:<br>
|
||||
<code>    strLower(<string>) → string</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Returns a string obtained by converting all characters of the specified string to lowercase.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<div class="title">Examples</div>
|
||||
<p><code>>>></code> <code class="blue">strLower("Hello, world!")</code><br>
|
||||
<code class="green">"hello, world!"</code></p>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
@ -3387,7 +3270,7 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
<p>In general, data-sources are objects that can be iterated over. They are defined as dictionaries having the key <code>next</code> whose value is a function that returns the next element of the collection and updates the state of the iterator. The <em>next</em> function must return a special value, <em class="blue">nil</em>, when there are no more elements to iterate over.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Lists and dictionaries are implicit data-sources. The syntax for creating an iterator is as follows.</p>
|
||||
<p>Lists and, soon, dictionaries, are implicit data-sources. The syntax for creating an iterator is as follows.</p>
|
||||
</div>
|
||||
<div class="exampleblock">
|
||||
<div class="title">Example 17. Iterator creation syntax</div>
|
||||
@ -3397,20 +3280,20 @@ Computes and returns the value of the <span class="underline">string</span> expr
|
||||
<em>data-source</em> = <em>explicit</em> | <em>list-spec</em> | <em>dict-spec</em> | <em>custom-data-source</em></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><em>explicit</em> = <em>any-expr</em> { "<strong>,</strong>" <em>any-expr</em> }</p>
|
||||
<p><em>explicit</em> = <em>any-expr</em> { "," <em>any-expr</em> }</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><em>list-spec</em> = <em>list</em> <em>range-options</em><br>
|
||||
<em>list</em> = "<strong>[</strong>" <em>any-expr</em> { "<strong>,</strong>" <em>any-expr</em> } "<strong>]</strong>"<br>
|
||||
<em>range-options</em> = [ "<strong>,</strong>" <em>start-index</em> [ "<strong>,</strong>" <em>end-index</em> [ "<strong>,</strong>" <em>step</em> ]]]<br>
|
||||
<em>list</em> = "<strong>[</strong>" <em>any-expr</em> { "," <em>any-expr</em> } "<strong>]</strong>"<br>
|
||||
<em>range-options</em> = [ "," <em>start-index</em> [ "," <em>end-index</em> [ "," <em>step</em> ]]]<br>
|
||||
<em>start-index</em>, <em>end-index</em>, <em>step</em> = <em>integer-expr</em></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p><em>dict-spec</em> = <em>dict</em> <em>dict-options</em><br>
|
||||
<em>dict</em> = "<strong>{</strong>" <em>key-value-pair</em> { "<strong>,</strong>" <em>key-value-pair</em> } "<strong>}</strong>"<br>
|
||||
<em>key-value-pair</em> = <em>scalar-value</em> "<strong>:</strong>" <em>any-expr</em><br>
|
||||
<em>dict</em> = "<strong>{</strong>" <em>key-value-pair</em> { "," <em>key-value-pair</em> } "<strong>}</strong>"<br>
|
||||
<em>key-value-pair</em> = <em>scalar-value</em> ":" <em>any-expr</em><br>
|
||||
<em>scalar-value</em> = <em>string</em> | <em>number</em> | <em>boolean</em><br>
|
||||
<em>dict-options</em> = [ "<strong>,</strong>" <em>sort-order</em> [ "<strong>,</strong>" <em>iter-mode</em> ] ]<br>
|
||||
<em>dict-options</em> = [ "," <em>sort-order</em> [ "," <em>iter-mode</em> ] ]<br>
|
||||
<em>sort-order</em> = <em>asc-order</em> | <em>desc-order</em> | <em>no-sort</em> | <em>default-order</em><br>
|
||||
<em>asc-order</em> = "<strong>asc</strong>" | "<strong>a</strong>"<br>
|
||||
<em>desc-order</em> = "<strong>desc</strong>" | "<strong>d</strong>"<br>
|
||||
@ -3478,7 +3361,7 @@ Currently, <em>default-iter</em> is the same as <em>keys-iter</em>. In the futur
|
||||
<code class="red">Eval Error: EOF</code></p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>When creating a list-type iterator expression, you can specify a range of indices and a step to iterate over a subset of the list.</p>
|
||||
<p>On a list-type iterator creation expression, it is possible to specify an index range and a step to iterate over a subset of the list.</p>
|
||||
</div>
|
||||
<div class="paragraph">
|
||||
<p>Indexing starts at 0. If the start index is not specified, it defaults to 0. If the end index is not specified, it defaults to the index of the last element of the list. If the step is not specified, it defaults to 1.</p>
|
||||
@ -3610,7 +3493,7 @@ Iterators built on custom data-sources can provide additional named operators, d
|
||||
</div>
|
||||
<div id="footer">
|
||||
<div id="footer-text">
|
||||
Last updated 2026-04-21 06:35:14 +0200
|
||||
Last updated 2026-04-19 15:03:48 +0200
|
||||
</div>
|
||||
</div>
|
||||
</body>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user