String Transforms

Example for various string transformations

Introduction

The Util.Texts.Transforms generic package provides various functions and procedures to transform strings:

• Capitalize a string,
• Transform to upper case,
• Transform to lower case,
• Escape the string using Javascript escape rules,
• Escape the string using XML escape rules

The Util.Strings.Transforms package is an instantiation of this generic package for the String and the Unbounded_String types. To use the string transformation package, add the following with clause:

with Util.Strings.Transforms;

Escape XML

The Escape_Xml function replaces XML special characters by the equivalent XML entities. The function is limited to the following characters: '<', '>', '&', '''

  S      : constant String := ...;
  Result : constant String := Util.Strings.Transforms.Escape_Xml (S);

Escape JavaScript

The Escape_Javascript function escape the special characters for Javascript. The special characters are converted to \n, \b, \t, \r, \f, \uxx. Single quotes are prefixed by .

  S      : constant String := ...;
  Result : constant String := Util.Strings.Transforms.Escape_Javascript (S);

Source

http://code.google.com/p/ada-util/source/browse/trunk/samples/escape.adb