tools: showerr.sh to colorize nc* outputs

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/src/nc b/src/nc
index 798862d..2b529f7 100755 (executable)
--- a/src/nc
+++ b/src/nc
@@ -30,5 +30,10 @@ esac
 ./git-gen-version.sh "$name"
 
 echo ${NITC} ${NITCOPTS} ${opts} "$@"
-${NITC} ${NITCOPTS} ${opts} "$@"
-
+k=$(mktemp nc.stderr.XXXXX)
+rm "$k"
+trap "rm -f $k; exit 1" INT TERM
+mkfifo "$k"
+${NITC} ${NITCOPTS} ${opts} "$@" 2>"$k" &
+./showerr.sh <"$k"
+rm "$k"

diff --git a/src/showerr.sh b/src/showerr.sh
new file mode 100755 (executable)
index 0000000..831acca
--- /dev/null
+++ b/src/showerr.sh
@@ -0,0 +1,92 @@
+#!/bin/sh
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Copyright 2008 Jean Privat <jean@pryen.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Usage:
+# showerr.sh [filelocation]...
+#
+# Show an colorize lines locations (with or without error messages) passed in arguments.
+# If no arguments are given, line locations a read for the standard input (one per line)
+
+red=$(printf "\033[0;31m")
+bred=$(printf "\033[1;31m")
+green=$(printf "\033[0;32m")
+yellow=$(printf "\033[0;33m")
+def=$(printf "\033[0m")
+
+colorize()
+{
+       F='\([^:]*\)'
+       D='\([0-9]*\)'
+       M='\(.*\)'
+       sed     -e "s!^$F:$D,$D--$D,$D: $M!X \1 \2 \3 \4 \5 \6!" \
+               -e "s!^$F:$D,$D--$D: $M!X \1 \2 \3 \2 \4 \5!" \
+               -e "s!^$F:$D,$D: $M!X \1 \2 \3 \2 \3 \4!" \
+               -e "s!^$F:$D: $M!X \1 \2 1 \2 eol \3!" \
+               -e "s!^$F:$D\$!X \1 \2 1 \2 eol!" |
+       while read k f l1 c1 l2 c2 m; do
+               if [ "$k" != "X" ]; then
+                       echo "$k $f $l1 $c1 $l2 $c2 $m"
+               else
+                       # Colorize and rewrite the error message
+                       m=$( echo "$m" |
+                               sed     -e "s!^\(Warning:\)\(.*\)!$green\1$def\2!" \
+                                       -e "s!^\([^:]*[Ee]rror:\)\(.*\)!$bred\1$def\2!"
+                       )
+                       echo "$yellow$f$def:$l1,$c1--$l2,$c2: $m"
+
+                       # Colorize and show the line
+                       if [ $c1 = 1 ]; then
+                               start="\(\)"
+                       else
+                               start="\(.\{$(($c1-1))\}\)"
+                       fi
+                       if [ $l1 = $l2 ]; then
+                               if [ $c2 = eol ]; then
+                                       len="\(.*\)"
+                                       red=""
+                               else
+                                       len="\(.\{$(($c2 - $c1 + 1))\}\)"
+                               fi
+                               sed -n -e "${l1}s!^$start$len\(.*\)!    \1$red\2$def\3!p" $f
+                       else
+                               if [ $c2 = 1 ]; then
+                                       start2="\(\)"
+                               else
+                                       start2="\(.\{$(($c2-1))\}\)"
+                               fi
+                               # Show only the first line
+                               sed -n -e "${l1}s!^$start\(.*\)!        \1$red\2 (...)$def!p" $f
+                               #sed -n -e "${l1}s!^$start\(.*\)!       \1$red\2!p" $f
+                               #if [ $l1 = $(($l2-2)) ]; then
+                               #       sed -n -e "$(($l1+1))s!^\(.*\)! \1!p" $f
+                               #elif [ $l1 != $(($l2-1)) ]; then
+                               #       sed -n -e "${l1}s!^\([   ]*\).*!        \1...!p" $f
+                               #fi
+                               #sed -n -e "${l2}s!^$start2\(.*\)!      \1$def\2!p" $f
+                       fi
+               fi
+       done
+}
+
+if [ "$#" = 0 ]; then
+       colorize
+else
+       for x in "$@"; do
+               echo "$x" | colorize
+       done
+fi
+