Objects/stringobject/strformat

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for PyObject being working with std/strformat

Types

FormatPyObjectError = object of CatchableError
inner Source   Edit   
PyStrFmt = distinct bool
Source   Edit  

Procs

proc formatValue[O: PyObject](s: var string; obj: O; specS: static[string]) {.
    ...raises: [FormatPyObjectError].}
remember to wrap around handleFormatExc Source   Edit   
proc formatValue[O: PyObject](s: var string; obj: O; specS: string) {.
    ...raises: [FormatPyObjectError].}
remember to wrap around handleFormatExc Source   Edit  

Templates

template `&`(fun: typedesc[PyStrFmt]; str: string{lit}): PyStrObject

Example:

proc f: PyObject =
  let msg: PyStrObject = PyStrFmt&"hello {86}"
  return msg
discard f()
Source   Edit   
template `&`(fun; str: string{lit}): PyObject

PyUnicode_FromFormat <- newPyStr&"xxx {v:spec} xxx"

XXX: we use & to cheat LSP to work (for syntax highlight)

Example:

let a = newPyAscii"e"
discard newPyStr&"abc {a}"
Source   Edit   
template handleFormatExc(body)
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template handleFormatExc(handle, body)
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template newPyStrF(str: string{lit}): PyStrObject
unstable. only used within function that returns PyObject Source   Edit  

Made with Nim. Generated: 2026-01-30 17:46:41 UTC