---
name: "Pprintast"
section: "3o"
platform: "linux"
package: "ocaml"
version: "5.5.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Pprintast"
---

# Pprintast(3o)

Pretty-printers for Parsetree

## NAME

Pprintast - Pretty-printers for Parsetree

## Module

Module   Pprintast

## Documentation

Module **Pprintast**\
  :  **sig end**

Pretty-printers for  **Parsetree**

Warning: this module is unstable and part of **Compiler\_libs** .

*type space\_formatter* =  **(unit, Format.formatter, unit) format**

*val longident* :  **Format.formatter -\> Longident.t -\> unit**

*val constr* :  **Format.formatter -\> Longident.t -\> unit**

*val expression* :  **Format.formatter -\> Parsetree.expression -\> unit**

*val string\_of\_expression* :  **Parsetree.expression -\> string**

*val pattern* :  **Format.formatter -\> Parsetree.pattern -\> unit**

*val core\_type* :  **Format.formatter -\> Parsetree.core\_type -\> unit**

*val signature* :  **Format.formatter -\> Parsetree.signature -\> unit**

*val structure* :  **Format.formatter -\> Parsetree.structure -\> unit**

*val string\_of\_structure* :  **Parsetree.structure -\> string**

*val module\_expr* :  **Format.formatter -\> Parsetree.module\_expr -\> unit**

*val toplevel\_phrase* :  **Format.formatter -\> Parsetree.toplevel\_phrase -\> unit**

*val top\_phrase* :  **Format.formatter -\> Parsetree.toplevel\_phrase -\> unit**

*val class\_field* :  **Format.formatter -\> Parsetree.class\_field -\> unit**

*val class\_type\_field* :  **Format.formatter -\> Parsetree.class\_type\_field -\> unit**

*val class\_expr* :  **Format.formatter -\> Parsetree.class\_expr -\> unit**

*val class\_type* :  **Format.formatter -\> Parsetree.class\_type -\> unit**

*val module\_type* :  **Format.formatter -\> Parsetree.module\_type -\> unit**

*val structure\_item* :  **Format.formatter -\> Parsetree.structure\_item -\> unit**

*val signature\_item* :  **Format.formatter -\> Parsetree.signature\_item -\> unit**

*val binding* :  **Format.formatter -\> Parsetree.value\_binding -\> unit**

*val payload* :  **Format.formatter -\> Parsetree.payload -\> unit**

*val tyvar\_of\_name* :  **string -\> string**

Turn a type variable name into a valid identifier, taking care of the special treatment required for the single quote character in second position, or for keywords by escaping them with \\#. No-op on "\_".

*val tyvar* :  **Format.formatter -\> string -\> unit**

Print a type variable name as a valid identifier, taking care of the special treatment required for the single quote character in second position, or for keywords by escaping them with \\#. No-op on "\_".

*module Doc :* **sig end**

**Format\_doc** functions for error messages