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authorSergey Poznyakoff <gray@gnu.org.ua>2011-05-23 13:26:08 (GMT)
committer Sergey Poznyakoff <gray@gnu.org.ua>2011-05-23 13:26:08 (GMT)
commita32a9570602c9af7290e7664fb9f489aff040cdb (patch) (side-by-side diff)
treec63c8735804ddcc128da9cc24b611532309de5b1 /build-aux
parent6e8ad128fe65ae8803e3e92c383256ae6afca02e (diff)
downloadgrecs-a32a9570602c9af7290e7664fb9f489aff040cdb.tar.gz
grecs-a32a9570602c9af7290e7664fb9f489aff040cdb.tar.bz2
Minor fixes
* build-aux/yyrename: Improve argument checking. Reword the description.
Diffstat (limited to 'build-aux') (more/less context) (ignore whitespace changes)
-rwxr-xr-xbuild-aux/yyrename15
1 files changed, 10 insertions, 5 deletions
diff --git a/build-aux/yyrename b/build-aux/yyrename
index 6964fb5..077aec3 100755
--- a/build-aux/yyrename
+++ b/build-aux/yyrename
@@ -15,26 +15,26 @@
# You should have received a copy of the GNU General Public License
# along with Grecs. If not, see <http://www.gnu.org/licenses/>.
-# Usage: yyrename [-f OUTFILE [OUTFILE...]] COMMAND INFILE
+# Usage: yyrename [-f "OUTFILE [OUTFILE...]"] COMMAND INFILE
# Makefile.am:
# LEXCOMPILE = yyrename -f $(LEX_OUTPUT_ROOT).c \
# '$(LEX) $(LFLAGS) $(AM_LFLAGS)'
# YACCCOMPILE = yyrename '$(YACC) $(YFLAGS) $(AM_YFLAGS)'
#
# This script runs COMMAND with INFILE as its argument and scans
-# OUTFILEs for identifiers starting with 'yy'. These identifiers
-# are renamed by replacing 'yy' with the selected prefix.
+# OUTFILEs for identifiers starting with 'yy'. It then renames these
+# identifiers by replacing 'yy' with the selected prefix.
#
# The prefix is looked up in the file yytrans, located in the INFILE's
# directory. If this file does not exist, the prefix is constructed
# by concatenating the string 'grecs_' and the ``root name''. The root
-# name is build by removing '-lex.l' or '-gram.y' from the base name.
+# name is built by removing '-lex.l' or '-gram.y' from the base name.
# If the latter does not end in any of these, the root name
# is constructed by removing the suffix from the base name.
#
# The yytrans file is a line-oriented lookup table. Empty lines are
# ignored, usual UNIX comment lines are honored. The remaining lines
-# must consist of two words separated by any amount of whitespace.
+# shall consist of two words separated by any amount of whitespace.
# The first word is a look-up key, the second one provides a translation
# (yy replacement) for that key.
#
@@ -55,6 +55,11 @@ case $1 in
shift
esac
+if test $# -ne 2; then
+ echo >&2 "usage: yyrename [-f "OUTFILE [OUTFILE...]"] COMMAND INFILE"
+ exit 1
+fi
+
base=`expr "$2" : '.*/\(.*\)\.[ly]'`
dir=`dirname "$2"`
case $2 in

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