[review] [gdb/contrib] Add -c option to words.sh script

["Tom de Vries (Code Review)" <gerrit@gnutoolchain-gerrit.osci.io>]

Change URL: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/654
......................................................................

[gdb/contrib] Add -c option to words.sh script

The words.sh script in its current form extracts c comments from files, which
it then transforms into a list of words.

To use the script on the documentation (as I did for commit 6b92c0d3533
"[gdb/doc] Fix typos"), I needed to disable the "extract c comments" part.

Add an option -c that enables extracting c comments, and is off by default.

gdb/ChangeLog:

2019-11-15  Tom de Vries  <tdevries@suse.de>

	* contrib/words.sh: Add -c option.

Change-Id: Ifa34d435b3c41b3ff845dc07ae4b0d9f02d92a2d
---
M gdb/contrib/words.sh
1 file changed, 16 insertions(+), 5 deletions(-)



diff --git a/gdb/contrib/words.sh b/gdb/contrib/words.sh
index 8c4fdd0..e48b82e 100755
--- a/gdb/contrib/words.sh
+++ b/gdb/contrib/words.sh
@@ -24,7 +24,8 @@
 #
 # For:
 # ...
-# $ ./gdb/contrib/words.sh $(find gdb -type f -name "*.c" -o -name "*.h")
+# $ files=$(find gdb -type f -name "*.c" -o -name "*.h")
+# $ ./gdb/contrib/words.sh -c $files
 # ...
 # it generates a list of ~15000 words prefixed with frequency.
 #
@@ -36,7 +37,8 @@
 #
 # And for:
 # ...
-# $ ./gdb/contrib/words.sh -f 1 $(find gdb -type f -name "*.c" -o -name "*.h")
+# $ files=$(find gdb -type f -name "*.c" -o -name "*.h")
+# $ ./gdb/contrib/words.sh -c -f 1 $files
 # ...
 # it generates a list of ~5000 words with frequency 1.
 #
@@ -45,8 +47,13 @@
 
 minfreq=
 maxfreq=
+c=false
 while [ $# -gt 0 ]; do
     case "$1" in
+	-c)
+	    c=true
+	    shift
+	    ;;
 	--freq|-f)
 	    minfreq=$2
 	    maxfreq=$2
@@ -111,9 +118,13 @@
 # Stabilize sort.
 export LC_ALL=C
 
-awk \
-    -f "$awkfile" \
-    -- "$@" \
+if $c; then
+    awk \
+	-f "$awkfile" \
+	-- "$@"
+else
+    cat "$@"
+fi \
     | sed \
 	  -e 's/[%^$~#{}`&=@,. \t\/_()|<>\+\*-]/\n/g' \
 	  -e 's/\[/\n/g' \

-- 
Gerrit-Project: binutils-gdb
Gerrit-Branch: master
Gerrit-Change-Id: Ifa34d435b3c41b3ff845dc07ae4b0d9f02d92a2d
Gerrit-Change-Number: 654
Gerrit-PatchSet: 1
Gerrit-Owner: Tom de Vries <tdevries@suse.de>
Gerrit-MessageType: newchange