preproc: allow non-identifier character in environment variables
Allow non-identifier characters in the name of environment variables,
by surrounding them with string quotes (subject to ordinary
string-quoting rules.)
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git a/doc/changes.src b/doc/changes.src
index 43a4997..e27fade 100644
--- a/doc/changes.src
+++ b/doc/changes.src
@@ -9,7 +9,8 @@
\S{cl-2.09} Version 2.09
-\b \c{%ifenv}, \c{%elifenv}, \c{%ifnenv}, and \c{%elifnenv} directives introduced.
+\b \c{%ifenv}, \c{%elifenv}, \c{%ifnenv}, and \c{%elifnenv} directives
+ introduced. See \k{ifenv}.
\b Fixed NULL dereference if environment variable is missed.
@@ -19,7 +20,8 @@
\b Fix for encoding the LFS, LGS and LSS in 64-bit mode.
-\b Fixes for compatibility with OpenWatcom compiler and DOS 8.3 file format limitation.
+\b Fixes for compatibility with OpenWatcom compiler and DOS 8.3 file
+ format limitation.
\b Macros parameters range expansion introduced. See \k{mlmacrange}.
@@ -29,14 +31,17 @@
\b Short intersegment jumps are permitted now.
-\b An alignment more then 64 bytes are allowed for \c{win32}, \c{win64} output formats.
+\b An alignment more then 64 bytes are allowed for \c{win32},
+ \c{win64} output formats.
\b \c{SECTALIGN} directive introduced. In most cases invisible to user.
-\b \c{nojmp} option introduced in \c{smartalign} package. See \k{pkg_smartalign}.
+\b \c{nojmp} option introduced in \c{smartalign} package. See
+ \k{pkg_smartalign}.
-\b Short aliases \c{win}, \c{elf} and \c{macho} for output formats are introduced.
- Each stands for \c{win32}, \c{elf32} and \c{macho32} accordingly.
+\b Short aliases \c{win}, \c{elf} and \c{macho} for output formats are
+ introduced. Each stands for \c{win32}, \c{elf32} and \c{macho32}
+ accordingly.
\b Faster handling of missing directives implemented.
@@ -53,6 +58,10 @@
\b Make \c{-Ox} the default optimization level. For the legacy
behavior, specify \c{-O0} explicitly. See \k{opt-O}.
+\b Environment variables read with \c{%!} or tested with \c{%ifenv}
+ can now contain non-identifier characters if surrounded by quotes.
+ See \k{getenv}.
+
\S{cl-2.08.02} Version 2.08.02