---
name: "textutil_string"
section: "3tcl"
platform: "linux"
package: "tcllib"
version: "2.0+dfsg-4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/textutil_string"
---

# textutil\_string(3tcl)

Procedures to manipulate texts and strings.

```

```

## NAME

textutil::string - Procedures to manipulate texts and strings.

## SYNOPSIS

package require **Tcl 8.5 9**

package require **textutil::string ?0.9?**

**::textutil::string::chop** *string*

**::textutil::string::tail** *string*

**::textutil::string::cap** *string*

**::textutil::string::capEachWord** *string*

**::textutil::string::uncap** *string*

**::textutil::string::longestCommonPrefixList** *list*

**::textutil::string::longestCommonPrefix** ?*string*...?

```

```

## DESCRIPTION

The package **textutil::string** provides miscellaneous string manipulation commands.

The complete set of procedures is described below.

- **::textutil::string::chop** *string*

  A convenience command. Removes the last character of *string* and returns the shortened string.

- **::textutil::string::tail** *string*

  A convenience command. Removes the first character of *string* and returns the shortened string.

- **::textutil::string::cap** *string*

  Capitalizes the first character of *string* and returns the modified string.

- **::textutil::string::capEachWord** *string*

  Capitalizes the first character of word of the *string* and returns the modified string. Words quoted with either backslash or dollar-sign are left untouched.

- **::textutil::string::uncap** *string*

  The complementary operation to **::textutil::string::cap**. Forces the first character of *string* to lower case and returns the modified string.

- **::textutil::string::longestCommonPrefixList** *list*

  - **::textutil::string::longestCommonPrefix** ?*string*...?

  Computes the longest common prefix for either the *string*s given to the command, or the strings specified in the single *list*, and returns it as the result of the command.

  If no strings were specified the result is the empty string.  If only one string was specified, the string itself is returned, as it is its own longest common prefix.

## BUGS, IDEAS, FEEDBACK

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category *textutil* of the *Tcllib Trackers* \[http://core.tcl.tk/tcllib/reportlist\]. 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.

## SEE ALSO

[regexp(3tcl)](/regexp/3tcl.md), [split(3tcl)](/split/3tcl.md), [string(3tcl)](/string/3tcl.md)

## KEYWORDS

capitalize, chop, common prefix, formatting, prefix, string, uncapitalize

## CATEGORY

Text processing