On 22 January 2011 19:38, Pekka Enberg <penb...@kernel.org> wrote:
> From: Ivan Maidanski <iv...@mail.ru>
>
> 2010-07-02 Ivan Maidanski <iv...@mail.ru>
>
> * java/util/regex/Pattern.java:
> (quote): Implement new 1.5 Java API method.
> ---
> ChangeLog | 5 +++++
> java/util/regex/Pattern.java | 37 ++++++++++++++++++++++++++++++++++++-
> 2 files changed, 41 insertions(+), 1 deletions(-)
>
> diff --git a/ChangeLog b/ChangeLog
> index 4d0bf6d..52b4760 100644
> --- a/ChangeLog
> +++ b/ChangeLog
> @@ -1,3 +1,8 @@
> +2010-07-02 Ivan Maidanski <iv...@mail.ru>
> +
> + * java/util/regex/Pattern.java:
> + (quote): Implement new 1.5 Java API method.
> +
> 2011-01-21 Pekka Enberg <penb...@kernel.org>
>
> * java/lang/Class.java:
> diff --git a/java/util/regex/Pattern.java b/java/util/regex/Pattern.java
> index 7d1fc84..2aae9bb 100644
> --- a/java/util/regex/Pattern.java
> +++ b/java/util/regex/Pattern.java
> @@ -1,5 +1,6 @@
> /* Pattern.java -- Compiled regular expression ready to be applied.
> - Copyright (C) 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
> + Copyright (C) 2002, 2004, 2005, 2007, 2010
> + Free Software Foundation, Inc.
>
> This file is part of GNU Classpath.
>
> @@ -37,6 +38,8 @@ exception statement from your version. */
>
> package java.util.regex;
>
> +import gnu.java.lang.CPStringBuilder;
> +
> import gnu.java.util.regex.RE;
> import gnu.java.util.regex.REException;
> import gnu.java.util.regex.RESyntax;
> @@ -260,6 +263,38 @@ public final class Pattern implements Serializable
> }
>
> /**
> + * Returns a literal pattern for the specified String.
> + *
> + * @since 1.5
> + */
> + public static String quote(String str)
> + {
> + int eInd = str.indexOf("\\E");
> + if (eInd < 0)
> + {
> + // No need to handle backslashes.
> + return "\\Q" + str + "\\E";
> + }
> +
> + CPStringBuilder sb = new CPStringBuilder(str.length() + 16);
> + sb.append("\\Q"); // start quote
> +
> + int pos = 0;
> + do
> + {
> + // A backslash is quoted by another backslash;
> + // 'E' is not needed to be quoted.
> + sb.append(str.substring(pos, eInd))
> + .append("\\E" + "\\\\" + "E" + "\\Q");
> + pos = eInd + 2;
> + } while ((eInd = str.indexOf("\\E", pos)) >= 0);
> +
> + sb.append(str.substring(pos, str.length()))
> + .append("\\E"); // end quote
> + return sb.toString();
> + }
> +
> + /**
> * Return the regular expression used to construct this object.
> * @specnote Prior to JDK 1.5 this method had a different behavior
> * @since 1.5
> --
> 1.7.1
>
>
>
The javadoc is incomplete; the parameter and return value are not documented.
Do you have some test cases for this?
--
Andrew :-)
Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)
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