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Add boolean generator expressions

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Add generator expressions that combine and use boolean test results:

 $<0:...>         = empty string (ignores "...")
 $<1:...>         = content of "..."
 $<AND:?[,?]...>  = '1' if all '?' are '1', else '0'
 $<OR:?[,?]...>   = '0' if all '?' are '0', else '1'
 $<NOT:?>         = '0' if '?' is '1', else '1'

These will be useful to evaluate (future) boolean query expressions and
condition content on the results.  Include tests and documentation.
This commit is contained in:
Brad King
2012-08-13 09:49:53 -04:00
parent cd3bd23266
commit ebf05abda1
17 changed files with 199 additions and 1 deletions
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10
Source/cmDocumentGeneratorExpressions.h
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@@ -16,6 +16,8 @@
"Generator expressions are evaluted during build system generation " \
"to produce information specific to each build configuration. " \
"Valid expressions are:\n" \
" $<0:...> = empty string (ignores \"...\")\n" \
" $<1:...> = content of \"...\"\n" \
" $<CONFIGURATION> = configuration name\n" \
" $<TARGET_FILE:tgt> = main file (.exe, .so.1.2, .a)\n" \
" $<TARGET_LINKER_FILE:tgt> = file used to link (.a, .lib, .so)\n" \
@@ -25,6 +27,12 @@
"versions can produce the directory and file name components:\n" \
" $<TARGET_FILE_DIR:tgt>/$<TARGET_FILE_NAME:tgt>\n" \
" $<TARGET_LINKER_FILE_DIR:tgt>/$<TARGET_LINKER_FILE_NAME:tgt>\n" \
" $<TARGET_SONAME_FILE_DIR:tgt>/$<TARGET_SONAME_FILE_NAME:tgt>\n"
" $<TARGET_SONAME_FILE_DIR:tgt>/$<TARGET_SONAME_FILE_NAME:tgt>\n" \
"Boolean expressions:\n" \
" $<AND:?[,?]...> = '1' if all '?' are '1', else '0'\n" \
" $<OR:?[,?]...> = '0' if all '?' are '0', else '1'\n" \
" $<NOT:?> = '0' if '?' is '1', else '1'\n" \
"where '?' is always either '0' or '1'.\n" \
""
#endif