MantisBT - CMake

View Issue Details

Project

Category

View Status

Date Submitted

Last Update

0014336

CMake

public

2013-08-03 02:18

2016-06-10 14:31

Reporter

irwin

Assigned To

Kitware Robot

Priority

normal

Severity

minor

Reproducibility

always

Status

closed

Resolution

moved

Platform

Linux

OS Version

Debian Wheezy

Product Version

CMake 2.8.11.2

Target Version

Fixed in Version

Summary

0014336: REGEX REPLACE does not give correct results for a left anchor (^) combined with careted brackets

Description

# Test code to show the issue.
set(filename "whatever")
string(REGEX REPLACE "(^[e])" "/\\1" CATALOG_filename "${filename}")
message(STATUS "filename=${filename}")
message(STATUS "CATALOG_filename=${CATALOG_filename}")
string(REGEX REPLACE "(^[^e])" "/\\1" CATALOG_filename "${filename}")
message(STATUS "filename=${filename}")
message(STATUS "CATALOG_filename=${CATALOG_filename}")

The first REGEX REPLACE gives a correct result (no match because of the anchor
so no replacement is done) while the second REGEX REPLACE produces an incorrect result (anchor ignored until the "e" is hit in whatever).

Steps To Reproduce

Run the above code using cmake -P. The results are

-- filename=whatever
-- CATALOG_filename=whatever
-- filename=whatever
-- CATALOG_filename=/w/h/a/tever

That last one should be

-- CATALOG_filename=/whatever

because the anchor should limit the match to just the first character (so long as that first character is not an "e" as in this case) so the "/" should be prepended only to the first character.

Additional Information