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Fix issue #9851 - only seed the random number generator on the first call to STRING(RANDOM or if given the new RANDOM_SEED argument. Add test and documentation of new argument.

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David Cole
2009-11-06 10:07:10 -05:00
parent 10762565e9
commit d6fe0438c1
3 changed files with 27 additions and 3 deletions
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5
Source/cmStringCommand.h
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@@ -89,7 +89,7 @@ public:
" string(SUBSTRING <string> <begin> <length> <output variable>)\n"
" string(STRIP <string> <output variable>)\n"
" string(RANDOM [LENGTH <length>] [ALPHABET <alphabet>]\n"
" <output variable>)\n"
" [RANDOM_SEED <seed>] <output variable>)\n"
"REGEX MATCH will match the regular expression once and store the "
"match in the output variable.\n"
"REGEX MATCHALL will match the regular expression as many times as "
@@ -115,7 +115,8 @@ public:
"RANDOM will return a random string of given length consisting of "
"characters from the given alphabet. Default length is 5 "
"characters and default alphabet is all numbers and upper and "
"lower case letters.\n"
"lower case letters. If an integer RANDOM_SEED is given, its "
"value will be used to seed the random number generator.\n"
"The following characters have special meaning in regular expressions:\n"
" ^ Matches at beginning of a line\n"
" $ Matches at end of a line\n"