C++ class for reading and writing XML structures. No need for a C++ code parser or special pre compiler. Specify a schema entirly in native C++. The schema is verified when XML is read and exceptions are thrown when the XML to be parse is invalid.
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#!/bin/bash -e
# template for bash scripts
# internal use only
append_msg() {
if test $# -ne 0; then
echo -en ":\e[0m \e[1m$*"
fi
echo -e "\e[0m"
}
# write a notice
notice() {
if test $# -eq 0; then
return
fi
echo -e "\e[1m$*\e[0m" 1>&3
}
# write error message
error() {
echo -en "\e[1;31merror" 1>&2
append_msg $* 1>&2
}
# write a warning message
warning() {
echo -en "\e[1;33mwarning" 1>&2
append_msg $* 1>&2
}
# write a success message
success() {
echo -en "\e[1;32msuccess" 1>&2
append_msg $* 1>&2
}
# commandline parameter evaluation
files=${0%/*}/configure.ac
short=0
while test $# -gt 0; do
case "$1" in
(--short|-s) short=1;;
(--help|-h) less <<EOF
SYNOPSIS
$0 [OPTIONS] <files>
OPTIONS
--help, -h show this help
--short, -s short graph with no external dependencies
<files> list of zero or more configure.ac files
(default: ${files})
DESCRIPTION
Evaluates dependencies of all the given configure.ac file. By
default takes the local configure.ac. Outputs a graphwiz dot file
with the dependencies. Solid lines are required dependencies, dotted
lines are optional dependencies.
EXAMPLE
Evaluate all dependencies between all local subversion and git
projects, if they are in the path ~/svn and ~/git:
$0 ~/svn/*/configure.ac ~/git/*/configure.ac
EOF
exit;;
(*) files=$*; break;;
esac
if test $# -eq 0; then
error "missing parameter, try $0 --help"; exit 1
fi
shift;
done
# run a command, print the result and abort in case of error
# option: --no-check: ignore the result, continue in case of error
run() {
check=1
while test $# -gt 0; do
case "$1" in
(--no-check) check=0;;
(*) break;;
esac
shift;
done
echo -en "\e[1m-> running:\e[0m $* ..."
result=$($* 2>&1)
res=$?
if test $res -ne 0; then
if test $check -eq 1; then
error "failed with return code: $res"
if test -n "$result"; then
echo "$result"
fi
exit 1
else
warning "ignored return code: $res"
fi
else
success
fi
}
# error handler
function traperror() {
set +x
local err=($1) # error status
local line="$2" # LINENO
local linecallfunc="$3"
local command="$4"
local funcstack="$5"
for e in ${err[@]}; do
if test -n "$e" -a "$e" != "0"; then
error "line $line - command '$command' exited with status: $e (${err[@]})"
if [ "${funcstack}" != "main" -o "$linecallfunc" != "0" ]; then
echo -n " ... error at ${funcstack} "
if [ "$linecallfunc" != "" ]; then
echo -n "called at line $linecallfunc"
fi
echo
fi
exit $e
fi
done
success
exit 0
}
# catch errors
trap 'traperror "$? ${PIPESTATUS[@]}" $LINENO $BASH_LINENO "$BASH_COMMAND" "${FUNCNAME[@]}" "${FUNCTION}"' ERR SIGINT INT TERM EXIT
##########################################################################################
filter() {
if test $short -eq 1; then
all=$(cat)
allowed=$(sed -n '/"\(.*\)" \[style=solid\];/{s//\1/;H};${x;s/\n//;s/\n/\\|/gp}' <<<"${all}")
sed -n '/"\('"${allowed}"'\)" -> "\('"${allowed}"'\)"/p' <<<"${all}"
else
cat
fi
}
echo "digraph G {"
if test $short -eq 0; then
echo "node [style=dashed];"
fi
(
for file in $files; do
if ! test -e $file; then
error "file $file not found"; exit 1
fi
sed -n '
/^ *m4_define(x_package_name, */ {s//"/;s/ *).*/"/;h;s/.*/& [style=solid];/p}
/^ *AX_REQUIRE_QT/ {s/.*/"qt" -> /;G;s/\n//;s/.*/&;/p}
/^ *AX_PKG_REQUIRE(\[\?\([^],)]\+\)\]\?, \[\?\([^],)]\+\)\]\?.*/ {s//"\2" -> /;G;s/\n//;s/.*/&;/p}
/^ *AX_PKG_REQUIRE(\[\?\([^],)]\+\)\]\?.*/ {s//"\1" -> /;G;s/\n//;s/.*/&;/p}
/^ *AX_CHECK_QT/ {s/.*/"qt" -> /;G;s/\n//;s/.*/& [style=dashed];/p}
/^ *AX_PKG_CHECK(\[\?\([^],)]\+\)\]\?, \[\?\([^],)]\+\)\]\?.*/ {s//"\2" -> /;G;s/\n//;s/.*/& [style=dotted];/p}
/^ *AX_PKG_CHECK(\[\?\([^],)]\+\)\]\?.*/ {s//"\1" -> /;G;s/\n//;s/.*/& [style=dotted];/p}
' $file
done
) | filter
echo "}"