From d186797cf6d084ad8c198475757aaa6a33ddbcc7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johel=20Ernesto=20Guerrero=20Pe=C3=B1a?=
 <johelegp@gmail.com>
Date: Sat, 28 Aug 2021 10:49:28 -0400
Subject: Help: Fix regex in example of cmake-packages(7)

This change makes it work as intended as opposed to make the condition always true.
This can be confirmed by running the following script:
```
[johel@sundown tmp]$ cat x.cmake
function(f)
  set(valid_inputs abc 123)
  foreach(input ${ARGV})
    if(";${valid_inputs};" MATCHES input)
      message("old valid: ${input}")
    endif()
    if(";${valid_inputs};" MATCHES ";${input};")
      message("new valid: ${input}")
    endif()
  endforeach()
endfunction()

f("0;z;123;12;abc;ab;13;ac")

set(_supported_components Plot Table)
set(ClimbingStats_FIND_COMPONENTS Plot Table P T)

foreach(_comp ${ClimbingStats_FIND_COMPONENTS})
  if(NOT ";${_supported_components};" MATCHES _comp)
    message("old invalid: set(ClimbingStats_NOT_FOUND_MESSAGE \"Unsupported component: ${_comp}\")")
  endif()
  if(NOT ";${_supported_components};" MATCHES ";${_comp};")
    message("new invalid: set(ClimbingStats_NOT_FOUND_MESSAGE \"Unsupported component: ${_comp}\")")
  endif()
endforeach()
[johel@sundown tmp]$ cmake -P x.cmake
new valid: 123
new valid: abc
old invalid: set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: Plot")
old invalid: set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: Table")
old invalid: set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: P")
new invalid: set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: P")
old invalid: set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: T")
new invalid: set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: T")
```
---
 Help/manual/cmake-packages.7.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Help/manual/cmake-packages.7.rst b/Help/manual/cmake-packages.7.rst
index 5262105..5c109ff 100644
--- a/Help/manual/cmake-packages.7.rst
+++ b/Help/manual/cmake-packages.7.rst
@@ -449,7 +449,7 @@ be true. This can be tested with logic in the package configuration file:
   set(_supported_components Plot Table)
 
   foreach(_comp ${ClimbingStats_FIND_COMPONENTS})
-    if (NOT ";${_supported_components};" MATCHES _comp)
+    if (NOT ";${_supported_components};" MATCHES ";${_comp};")
       set(ClimbingStats_FOUND False)
       set(ClimbingStats_NOT_FOUND_MESSAGE "Unsupported component: ${_comp}")
     endif()
-- 
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