125 lines
3.3 KiB
Bash
125 lines
3.3 KiB
Bash
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#! /bin/sh
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set -e
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IN="../update-pcre"
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PCRE=$1
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if [ "x$PCRE" = x ] || [ "x$PCRE" = x--help ] || [ "x$PCRE" = x-h ]; then
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cat >&2 << EOF
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$0 PCRE-DIR
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Updates the local PCRE copy with a different version of the library,
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contained in the directory PCRE-DIR.
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This will delete the content of the local pcre directory, copy the
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necessary files from PCRE-DIR, and generate other needed files, such
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as Makefile.am
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EOF
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exit
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fi
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if [ ! -f gregex.h ]; then
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echo "This script should be executed from the directory containing gregex.c." 2> /dev/null
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exit 1
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fi
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if [ ! -f "${PCRE}/Makefile.in" ] || [ ! -f "${PCRE}/pcre_compile.c" ]; then
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echo "'${PCRE}' does not contain a valid PCRE version." 2> /dev/null
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exit 1
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fi
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echo "Deleting old PCRE library"
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mv pcre/.svn tmp-pcre-svn
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rm -R pcre 2> /dev/null
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mkdir pcre
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cd pcre
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# pcre_chartables.c is generated by dfatables.
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# We do not want to compile and execute dfatables.c every time, because
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# this could be a problem (e.g. when cross-compiling), so now generate
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# the file and then distribute it with GRegex.
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echo "Generating pcre_chartables.c"
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cp -R "${PCRE}" tmp-build
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(
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cd tmp-build || exit 1
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./configure --enable-utf8 --enable-unicode-properties --disable-cpp > /dev/null
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make pcre_chartables.c > /dev/null
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cat > ../pcre_chartables.c << \EOF
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/* This file is autogenerated by ../update-pcre/update.sh during
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* the update of the local copy of PCRE.
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*/
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EOF
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cat pcre_chartables.c >> ../pcre_chartables.c
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)
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rm -R tmp-build
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# Compiled C files.
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echo "Generating makefiles"
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all_files=$(awk '/^OBJ = /, /^\\s*$/ ' \
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'{' \
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'sub("^OBJ = ", "");' \
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'sub(".@OBJEXT@[[:blank:]]*\\\\\\\\", "");' \
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'sub("\\\\$\\\\(POSIX_OBJ\\\\)", "");' \
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'print;' \
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'}' \
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"${PCRE}/Makefile.in")
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# Headers.
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included_files="pcre.h pcre_internal.h ucp.h ucpinternal.h"
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# Generate Makefile.am.
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cat $IN/Makefile.am-1 > Makefile.am
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for name in $all_files; do
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echo " $name.c \\" >> Makefile.am
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if [ "${name}" != pcre_chartables ]; then
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# pcre_chartables.c is a generated file.
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cp "${PCRE}/${name}.c" .
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fi
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done
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for f in $included_files; do
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echo " $f \\" >> Makefile.am
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cp "${PCRE}/${f}" .
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done
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cat $IN/Makefile.am-2 >> Makefile.am
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echo "Patching PCRE"
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# Copy the license.
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cp "${PCRE}/COPYING" .
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# Use glib for memory allocation.
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patch > /dev/null < $IN/memory.patch
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# Copy the modified version of pcre_valid_utf8.c.
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cp $IN/pcre_valid_utf8.c .
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# Copy the modified version of pcre_ucp_searchfuncs.c that uses glib
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# for Unicode properties.
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cp $IN/pcre_ucp_searchfuncs.c .
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patch > /dev/null < $IN/ucp.patch
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# Remove the digitab array in pcre_compile.c.
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patch > /dev/null < $IN/digitab.patch
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sed -i -e 's/(digitab\[\(.*\)\] & ctype_digit)/g_ascii_isdigit(\1)/' pcre_compile.c
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sed -i -e 's/(digitab\[\(.*\)\] & ctype_xdigit)/g_ascii_isxdigit(\1)/' pcre_compile.c
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# Reduce the number of relocations.
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python $IN/make_utt.py
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patch > /dev/null < $IN/utt.patch
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patch > /dev/null < $IN/table-reduction.patch
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# Copy back the old SVN directory.
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mv ../tmp-pcre-svn .svn
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cat << EOF
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Update completed. You now should check that everything is working.
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Remember to update the regex syntax doc with the new features
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(docs/reference/glib/regex-syntax.sgml) and to run the tests.
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EOF
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