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# page_util_quote(n) 1.0 tcllib "Parser generator tools"

## Name

page_util_quote - page character quoting utilities

## Synopsis

- package require page::util::quote ?0.1?
- package require snit

- ::page::util::quote::unquote char
- ::page::util::quote::quote'tcl char
- ::page::util::quote::quote'tclstr char
- ::page::util::quote::quote'tclcom char

## Description

This package provides a few utility commands to convert characters into various forms.

## API

::page::util::quote::unquote char

  A character, as stored in an abstract syntax tree by a PEG processor (See the packages grammar::peg::interpreter, grammar::me, and their relations), i.e. in some quoted form, is converted into the equivalent Tcl character. The character is returned as the result of the command.

::page::util::quote::quote'tcl char

  This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser, will regenerate the character in question and is 7bit ASCII. The string is returned as the result of this command.

::page::util::quote::quote'tclstr char

  This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser and will generate a human readable representation of the character in question. The string is returned as the result of this command.

  The string does not use any unprintable characters. It may use backslash-quoting. High UTF characters are quoted to avoid problems with the still prevalent ascii terminals. It is assumed that the string will be used in a double-quoted environment.

::page::util::quote::quote'tclcom char

  This command takes a Tcl character (internal representation) and converts it into a string which is accepted by the Tcl parser when used within a Tcl comment. The string is returned as the result of this command.

## Bugs, Ideas, Feedback

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category page of the Tcllib Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

When proposing code changes, please provide unified diffs, i.e the output of diff -u.

Note further that attachments are strongly preferred over inlined patches. Attachments can be made by going to the Edit form of the ticket immediately after its creation, and then using the left-most button in the secondary navigation bar.

## Keywords

page, parser generator, quoting, text processing

## Category

Page Parser Generator

## Copyright

Copyright © 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net>