glib/update-pcre/update.sh

   1 #! /bin/sh
   2
   3 IN="../update-pcre"
   4 PCRE=$1
   5
   6 if [ "x$PCRE" = x -o "x$PCRE" = x--help -o "x$PCRE" = x-h ]; then
   7     cat >&2 << EOF
   8
   9 $0 PCRE-DIR
  10
  11   Updates the local PCRE copy with a different version of the library,
  12   contained in the directory PCRE-DIR.
  13
  14   This will delete the content of the local pcre directory, copy the
  15   necessary files from PCRE-DIR, and generate other needed files, such
  16   as Makefile.am
  17 EOF
  18     exit
  19 fi
  20
  21 if [ ! -f gregex.h ]; then
  22     echo "This script should be executed from the directory containing gregex.c." 2> /dev/null
  23     exit 1
  24 fi
  25
  26 if [ ! -f $PCRE/Makefile.in -o ! -f $PCRE/pcre_compile.c ]; then
  27     echo "'$PCRE' does not contain a valid PCRE version." 2> /dev/null
  28     exit 1
  29 fi
  30
  31
  32 echo "Deleting old PCRE library"
  33 mv pcre/.svn tmp-pcre-svn
  34 rm -R pcre 2> /dev/null
  35 mkdir pcre
  36 cd pcre
  37
  38 # pcre_chartables.c is generated by dfatables.
  39 # We do not want to compile and execute dfatables.c every time, because
  40 # this could be a problem (e.g. when cross-compiling), so now generate
  41 # the file and then distribuite it with GRegex.
  42 echo "Generating pcre_chartables.c"
  43 cp -R $PCRE tmp-build
  44 cd tmp-build
  45 ./configure --enable-utf8 --enable-unicode-properties --disable-cpp > /dev/null
  46 make pcre_chartables.c > /dev/null
  47 cat > ../pcre_chartables.c << \EOF
  48 /* This file is autogenerated by ../update-pcre/update.sh during
  49  * the update of the local copy of PCRE.
  50  */
  51 EOF
  52 cat pcre_chartables.c >> ../pcre_chartables.c
  53 cd ..
  54 rm -R tmp-build
  55
  56 # Compiled C files.
  57 echo "Generating makefiles"
  58 all_files=`awk '/^OBJ = /, /^\\s*$/ \
  59             { \
  60                 sub("^OBJ = ", ""); \
  61                 sub(".@OBJEXT@[[:blank:]]*\\\\\\\\", ""); \
  62                 sub("\\\\$\\\\(POSIX_OBJ\\\\)", ""); \
  63                 print; \
  64             }' \
  65             $PCRE/Makefile.in`
  66
  67 # Headers.
  68 included_files="pcre.h pcre_internal.h ucp.h ucpinternal.h"
  69
  70 # Generate Makefile.am.
  71 cat $IN/Makefile.am-1 > Makefile.am
  72 for name in $all_files; do
  73     echo "      $name.c \\" >> Makefile.am
  74     if [ $name != pcre_chartables ]; then
  75         # pcre_chartables.c is a generated file.
  76         cp $PCRE/$name.c .
  77     fi
  78 done
  79 for f in $included_files; do
  80     echo "      $f \\" >> Makefile.am
  81     cp $PCRE/$f .
  82 done
  83 cat $IN/Makefile.am-2 >> Makefile.am
  84
  85 echo "Patching PCRE"
  86
  87 # Copy the license.
  88 cp $PCRE/COPYING .
  89
  90 # Use glib for memory allocation.
  91 patch > /dev/null < $IN/memory.patch
  92
  93 # Copy the modified version of pcre_valid_utf8.c.
  94 cp $IN/pcre_valid_utf8.c .
  95
  96 # Copy the modified version of pcre_ucp_searchfuncs.c that uses glib
  97 # for Unicode properties.
  98 cp $IN/pcre_ucp_searchfuncs.c .
  99 patch > /dev/null < $IN/ucp.patch
 100
 101 # Remove the digitab array in pcre_compile.c.
 102 patch > /dev/null < $IN/digitab.patch
 103 sed -i -e 's/(digitab\[\(.*\)\] & ctype_digit)/g_ascii_isdigit(\1)/' pcre_compile.c
 104 sed -i -e 's/(digitab\[\(.*\)\] & ctype_xdigit)/g_ascii_isxdigit(\1)/' pcre_compile.c
 105
 106 # Reduce the number of relocations.
 107 python $IN/make_utt.py
 108 patch > /dev/null < $IN/utt.patch
 109 patch > /dev/null < $IN/table-reduction.patch
 110
 111 # Copy back the old SVN directory.
 112 mv ../tmp-pcre-svn .svn
 113
 114
 115 cat << EOF
 116
 117 Update completed. You now should check that everything is working.
 118 Remember to update the regex syntax doc with the new features
 119 (docs/reference/glib/regex-syntax.sgml) and to run the tests.
 120 EOF
 121