[9b8baa1] | 1 | #!/usr/bin/perl |
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| 2 | |
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[df49c60] | 3 | package main ; |
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| 4 | |
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| 5 | use strict ; |
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| 6 | |
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[9b8baa1] | 7 | # |
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| 8 | # Perl script to beautify and enhance RTEMS automake Makefile.ams |
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| 9 | # |
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| 10 | # Reads from stdin and writes to stdout |
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| 11 | # |
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| 12 | # usage: |
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| 13 | # <path-to>/ampolish <Makefile.am >Makefile.am~ |
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| 14 | # mv Makefile.am~ Makefile.am |
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| 15 | # |
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| 16 | |
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[df49c60] | 17 | my @vars ; |
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| 18 | my @conditions = ( "" ) ; |
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| 19 | my @buffer = (); |
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| 20 | my %var_ ; |
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| 21 | |
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| 22 | define_variable( "\$(AUTOMAKE_OPTIONS)", ( "foreign", "1.4" ) ); |
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| 23 | define_variable( "\$(VPATH)", ( "\@srcdir\@" ) ); |
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| 24 | |
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| 25 | # find relative up-path to configure.in |
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| 26 | my $rtems_cfg = find_file(".","configure.in"); |
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| 27 | |
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| 28 | # find relative up-path from configure.in to VERSION |
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| 29 | my $rtems_top = find_file("$rtems_cfg","VERSION"); |
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| 30 | |
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| 31 | if ( "$rtems_top" eq "." ) { $rtems_top = "" ; } |
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| 32 | else { $rtems_top .= "/" ; } |
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| 33 | |
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| 34 | { |
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| 35 | # PASS1: |
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| 36 | # read input file and concatenate multiple lines into single lines. |
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| 37 | |
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| 38 | my @ibuf = () ; |
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| 39 | |
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| 40 | while( <STDIN> ) |
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| 41 | { # consume header |
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| 42 | last if ( /^[^#].*$/ ) ; |
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| 43 | push @ibuf, "$_" ; |
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| 44 | } |
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| 45 | |
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| 46 | push @ibuf, "§header\n" ; |
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| 47 | |
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| 48 | do |
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| 49 | { |
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| 50 | if ( /^(#.*)$/o ) |
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| 51 | { # preserve comments |
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| 52 | push @ibuf, "$_" ; |
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| 53 | } |
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| 54 | elsif ( /^(\t.*)\\[\s]*$/o ) |
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| 55 | { # multilines for scripts |
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| 56 | my $line = "$1§" ; |
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| 57 | while( <STDIN> ) |
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| 58 | { |
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| 59 | if ( /^(.*)\\[\s]*$/o ) |
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| 60 | { |
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| 61 | $line .= "$1§" ; |
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| 62 | } |
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| 63 | else |
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| 64 | { |
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| 65 | $line .= "$_" ; |
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| 66 | push @ibuf, $line ; |
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| 67 | last ; |
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| 68 | } |
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| 69 | } |
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| 70 | } |
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| 71 | elsif ( /^(.*)\\[\s]*$/o ) |
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| 72 | { # multilines |
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| 73 | my $line = "$1" ; |
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| 74 | while( <STDIN> ) |
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| 75 | { |
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| 76 | if ( /^(.*)\\[\s]*$/o ) |
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| 77 | { |
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| 78 | $line .= "$1" ; |
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| 79 | } |
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| 80 | else |
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| 81 | { |
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| 82 | $line .= "$_" ; |
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| 83 | $line =~ s%[\s]+% %g ; |
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| 84 | push @ibuf, "$line\n" ; |
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| 85 | last ; |
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| 86 | } |
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| 87 | } |
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| 88 | } |
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| 89 | else |
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| 90 | { |
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| 91 | push @ibuf, "$_" ; |
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| 92 | } |
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| 93 | } while ( <STDIN> ) ; |
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| 94 | @buffer = @ibuf ; |
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| 95 | } |
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| 96 | |
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| 97 | { |
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| 98 | # PASS2: |
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| 99 | # fix obsolete constructs |
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| 100 | my @ibuf = () ; |
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| 101 | |
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| 102 | foreach ( @buffer ) |
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| 103 | { |
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| 104 | # tr /\{\}/\(\)/ ; |
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| 105 | |
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| 106 | if ( /^(TMP|PRE)INSTALL_FILES[\s]*=(.*)$/o ) |
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| 107 | { # force "+=" |
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| 108 | push @ibuf, "$1INSTALL_FILES +=$2\n" ; |
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| 109 | } |
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| 110 | elsif ( /^(VPATH|EXTRA_DIST)[\s]*\+=(.*)$/o ) |
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| 111 | { # force "=" |
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| 112 | push @ibuf, "$1 = $2\n" ; |
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| 113 | } |
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| 114 | elsif ( /^[\s]*ACLOCAL[\s]*=[\s]*\@ACLOCAL\@.*$/o ) |
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| 115 | { # remove the line |
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| 116 | } |
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| 117 | elsif ( /^[\s]*(ACLOCAL_AMFLAGS)[\s\t]*[\+]*=[\s]*(.*)[\s]*$/o ) |
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| 118 | { # remove the line |
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| 119 | } |
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| 120 | elsif ( /^[\s]*(AM_CFLAGS)[\s\t]*[\+]*=[\s]*\$\(CFLAGS_OS_V\)[\s]*$/o ) |
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| 121 | { # remove the line |
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| 122 | } |
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| 123 | elsif ( /^[\s]*debug-am:.*$/o ) |
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| 124 | { # remove the line |
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| 125 | } |
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| 126 | elsif ( /^[\s]*all(\-am):(.*)$/o ) |
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| 127 | { # replace the line |
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| 128 | push @ibuf, "all-local:$2\n" ; |
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| 129 | } |
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| 130 | elsif ( /^[\s]*profile-am:.*$/o ) |
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| 131 | { # remove the line |
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| 132 | } |
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| 133 | elsif ( /^[\s]*include[\s\t]*\$\(RTEMS_ROOT\)\/make\/lib.cfg[\s]*$/o ) |
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| 134 | { |
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| 135 | push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/lib.am\n" ; |
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| 136 | } |
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| 137 | elsif ( /^(.*[^\s])[\s]*$/o ) |
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| 138 | { # remove trailing spaces |
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| 139 | push @ibuf, "$1\n" ; |
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| 140 | } |
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| 141 | else |
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| 142 | { |
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| 143 | push @ibuf, "$_" ; |
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| 144 | } |
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| 145 | } |
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| 146 | @buffer = @ibuf ; |
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| 147 | } |
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| 148 | |
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| 149 | # print STDERR "<tmp>\n", @buffer, "</tmp>\n" ; |
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| 150 | |
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| 151 | { |
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| 152 | my @ibuf = () ; |
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| 153 | foreach ( @buffer ) |
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| 154 | { |
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| 155 | if ( /^#(.*)$/o ) |
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| 156 | { |
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| 157 | push @ibuf, "#$1\n" ; |
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| 158 | } |
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| 159 | elsif ( /^[\s]*if[\s\t]+([a-zA-Z0-9_]+)[\s\t]*$/o ) |
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| 160 | { |
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| 161 | push @conditions, "\@" . $1 . "_TRUE\@" ; |
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| 162 | push @ibuf, "if $1\n" ; |
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| 163 | } |
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| 164 | elsif ( /^[\s]*else[\s\t]*$/o ) |
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| 165 | { |
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| 166 | @conditions[$#conditions] =~ s/_TRUE\@$/_FALSE\@/; |
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| 167 | push @ibuf, "else\n" ; |
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| 168 | } |
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| 169 | elsif ( /^[\s]*endif[\s\t]*$/o ) |
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| 170 | { |
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| 171 | pop @conditions ; |
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| 172 | push @ibuf, "endif\n" ; |
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| 173 | } |
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| 174 | elsif ( /^§.*$/o ) |
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| 175 | { |
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| 176 | push @ibuf, "$_" ; |
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| 177 | } |
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| 178 | elsif ( /^[\s]*(VPATH)[\s\t]*([\+]*)=[\s]*(.*)[\s]*$/o ) |
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| 179 | { |
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| 180 | my $lh = "\$($1)" ; |
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| 181 | my @rh = split( /:/,"$3"); |
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| 182 | if ( $#conditions > 0 ) |
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| 183 | { |
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| 184 | print STDERR "WARNING: $1 must not be set inside of conditionals!\n" |
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| 185 | } |
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| 186 | define_variable( "$lh", @rh ); |
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| 187 | |
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| 188 | } |
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| 189 | elsif ( /^[\s]*(AUTOMAKE_OPTIONS)[\s\t]*([\+]*)=[\s]*(.*)$/o ) |
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| 190 | { |
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| 191 | my $lh = "\$($1)" ; |
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| 192 | my @rh = &split_vars("$3"); |
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| 193 | |
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| 194 | if ( $#conditions > 0 ) |
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| 195 | { |
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| 196 | print STDERR "WARNING: $1 must not be set inside of conditionals!\n" |
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| 197 | } |
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| 198 | |
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| 199 | define_variable( "$lh", @rh ); |
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| 200 | } |
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| 201 | elsif ( /^[\s]*([a-zA-Z0-9_]+)[\s\t]*([\+]*)=[\s]*(.*)$/o ) |
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| 202 | { |
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| 203 | my $lh = join ('',@conditions) . "\$($1)" ; |
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| 204 | my @rh = &split_vars("$3"); |
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| 205 | my $seen = variable_seen( "$lh" ) ; |
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| 206 | |
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| 207 | if ( $#conditions > 0 ) |
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| 208 | { |
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| 209 | define_variable( "\$($1)", () ); |
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| 210 | } |
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| 211 | |
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| 212 | define_variable( "$lh", @rh ); |
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| 213 | |
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| 214 | if ( not $seen ) |
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| 215 | { |
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| 216 | push @ibuf, "§$2var_$lh\n" ; |
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| 217 | } |
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| 218 | } |
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| 219 | elsif ( /^[\s]*include[\s\t]*\$\(top_srcdir\)[\.\/]*automake\/(.*)\.am$/o ) |
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| 220 | { |
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| 221 | if ( "$1" eq "lib" ) |
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| 222 | { |
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| 223 | push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/$1.am\n" ; |
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| 224 | } |
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| 225 | elsif ( "$1" eq "local" ) |
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| 226 | { |
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| 227 | $main::seen_local = 1 ; |
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| 228 | } |
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| 229 | elsif ( "$1" eq "host" ) |
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| 230 | { |
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| 231 | $main::seen_host = 1 ; |
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| 232 | } |
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| 233 | } |
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| 234 | elsif ( /^[\s]*include[\s\t]*(.*)$/o ) |
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| 235 | { |
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| 236 | push @ibuf, "include $1\n" ; |
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| 237 | } |
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| 238 | elsif ( /^\t(.*)$/o ) |
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| 239 | { |
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| 240 | push @ibuf, "\t$1\n" ; |
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| 241 | } |
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| 242 | elsif ( /^(.*)\:(.*)$/o ) |
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| 243 | { |
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| 244 | push @ibuf, "$1:$2\n" ; |
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| 245 | } |
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| 246 | elsif ( /^[\s]*$/o ) |
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| 247 | { |
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| 248 | push @ibuf, "\n" ; |
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| 249 | } |
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| 250 | else |
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| 251 | { |
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| 252 | die "ERROR: Don't know how to handle <$_>" ; |
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| 253 | } |
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| 254 | } # for |
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| 255 | @buffer = @ibuf ; |
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| 256 | } # while |
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| 257 | |
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| 258 | die "Conditional stack corrupted" if ( $#conditions != 0 ); |
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| 259 | |
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| 260 | foreach( @vars ) |
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| 261 | { |
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| 262 | purge( \@{$var_{"$_"}} ); |
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| 263 | } |
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| 264 | |
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| 265 | # print STDERR "<tmp>\n", @buffer, "</tmp>\n" ; |
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| 266 | |
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| 267 | |
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| 268 | { |
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| 269 | my @ibuf = () ; |
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| 270 | foreach( @buffer ) |
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| 271 | { |
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| 272 | if ( /^#.*$/o ) |
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| 273 | { |
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| 274 | push @ibuf, "$_" ; |
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| 275 | } |
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| 276 | elsif( /^§header$/o ) |
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| 277 | { |
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| 278 | my $l = $var_{"\$(AUTOMAKE_OPTIONS)"} ; |
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| 279 | push @ibuf, "\nAUTOMAKE_OPTIONS = @{$l}\n" ; |
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| 280 | if ( "$rtems_cfg" eq "." ) |
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| 281 | { |
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| 282 | push @ibuf, "ACLOCAL_AMFLAGS = -I \$(RTEMS_TOPdir)/aclocal\n" ; |
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| 283 | } |
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| 284 | if ( defined( @{$var_{"\$(VPATH)"}} ) ) |
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| 285 | { |
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| 286 | if ( $#{$var_{"\$(VPATH)"}} > 0 ) |
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| 287 | { |
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| 288 | my $l = join (':',@{$var_{"\$(VPATH)"}}) ; |
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| 289 | push @ibuf, "\nVPATH = $l\n" ; |
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| 290 | } |
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| 291 | } |
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| 292 | push @ibuf, "\n" ; |
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| 293 | } |
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| 294 | elsif ( /^§(\+|)var_(.*)\$\((.*)\)$/o ) |
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| 295 | { |
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| 296 | print_var(\@ibuf, "$3 $1=", $var_{"$2\$($3)"}) ; |
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| 297 | } |
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| 298 | elsif ( /^\t.*$/o ) |
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| 299 | { |
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| 300 | &print_script(\@ibuf, "$_"); |
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| 301 | } |
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| 302 | elsif ( /^[\s]*if[\s]+([a-zA-Z0-9_]+)[\s\t]*$/o ) |
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| 303 | { |
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| 304 | push @conditions, "\@$1_TRUE\@" ; |
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| 305 | push @ibuf, "if $1\n" ; |
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| 306 | } |
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| 307 | elsif ( /^[\s]*else[\s]*$/o ) |
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| 308 | { |
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| 309 | @conditions[$#conditions] =~ s/_TRUE\@$/_FALSE\@/; |
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| 310 | push @ibuf, "else\n" ; |
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| 311 | } |
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| 312 | elsif ( /^[\s]*endif[\s]*$/o ) |
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| 313 | { |
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| 314 | pop @conditions ; |
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| 315 | push @ibuf, "endif\n" ; |
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| 316 | } |
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| 317 | else |
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| 318 | { |
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| 319 | print_line(\@ibuf,$_); |
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| 320 | } |
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| 321 | } |
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| 322 | |
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| 323 | if ( variable_seen("\$(SUBDIRS)") ) |
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| 324 | { |
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| 325 | push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/subdirs.am\n" ; |
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| 326 | } |
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| 327 | |
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| 328 | if ( defined( $main::seen_host ) ) |
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| 329 | { |
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| 330 | push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/host.am\n" ; |
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| 331 | } |
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| 332 | else |
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| 333 | { |
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| 334 | push @ibuf, "include \$(top_srcdir)/${rtems_top}automake/local.am\n" ; |
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| 335 | } |
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| 336 | |
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| 337 | @buffer = @ibuf ; |
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| 338 | } |
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| 339 | |
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| 340 | #print STDERR "<tmp>\n", @buffer, "</tmp>\n" ; |
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| 341 | |
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| 342 | { ## pretty print |
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| 343 | my $out = join ('',@buffer) ; |
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| 344 | $out =~ s/\s\#\n(\#\n)+/\n/g ; |
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| 345 | $out =~ s/\n\n\#\n\n/\n/g ; |
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| 346 | $out =~ s/\n\n[\n]*/\n\n/g ; |
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| 347 | print $out ; |
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| 348 | } |
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| 349 | |
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| 350 | exit 0; |
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[9b8baa1] | 351 | |
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| 352 | # find a relative up-path to a file $file, starting at directory $pre |
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[cadbf44a] | 353 | sub find_file($$) |
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[9b8baa1] | 354 | { |
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| 355 | my $pre = $_[0] ; |
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| 356 | my $file= $_[1] ; |
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| 357 | |
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| 358 | my $top = "." ; |
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| 359 | if (not "$pre") { $pre = "." ; } |
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| 360 | |
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[df49c60] | 361 | for ( my $str = "$pre" . "/" . "$top" ; |
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[9b8baa1] | 362 | ( -d "$str" ) ; |
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| 363 | $str = "$pre" . "/" . "$top" ) |
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| 364 | { |
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| 365 | if ( -f "${str}/${file}" ) |
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| 366 | { |
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| 367 | return $top ; |
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| 368 | } |
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| 369 | if ( "$top" eq "." ) |
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| 370 | { |
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| 371 | $top = ".." ; |
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| 372 | } |
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| 373 | else |
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| 374 | { |
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| 375 | $top .= "/.." ; |
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| 376 | } |
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| 377 | } ; |
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| 378 | die "Can't find file ${file}\n" ; |
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| 379 | } |
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| 380 | |
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[df49c60] | 381 | sub variable_seen($) |
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| 382 | { |
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| 383 | my $label = "$_[0]" ; |
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| 384 | my $res = defined $var_{"$label"}; |
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| 385 | #print STDERR "SEEN: $label ->$res<\n" ; |
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| 386 | return $res ; |
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[9b8baa1] | 387 | } |
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| 388 | |
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[df49c60] | 389 | sub define_variable($$) |
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[9b8baa1] | 390 | { |
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[df49c60] | 391 | my ($label,@value) = @_ ; |
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[9b8baa1] | 392 | |
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[df49c60] | 393 | if ( not variable_seen("$label") ) |
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[9b8baa1] | 394 | { |
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[df49c60] | 395 | #print STDERR "DEFINING: $label\n" ; |
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| 396 | push @vars, "$label" ; |
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[9b8baa1] | 397 | } |
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| 398 | |
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[df49c60] | 399 | foreach my $i ( @{value} ) |
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| 400 | { |
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| 401 | push @{$var_{"$label"}}, $i ; |
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[9b8baa1] | 402 | } |
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[df49c60] | 403 | } |
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| 404 | |
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| 405 | # Strip off duplicate entries from a list |
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| 406 | sub purge($) |
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| 407 | { |
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| 408 | my $list = $_[0] ; # Reference to list ! |
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| 409 | my (@tmp) = () ; |
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| 410 | |
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| 411 | foreach my $l ( @{$list} ) |
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[9b8baa1] | 412 | { |
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[df49c60] | 413 | my $i = 1 ; |
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| 414 | foreach my $t (@tmp) |
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[9f4868c] | 415 | { |
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[df49c60] | 416 | if ( $t eq $l ) |
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| 417 | { |
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| 418 | $i = 0 ; |
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| 419 | last ; |
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| 420 | } |
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[9f4868c] | 421 | } |
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[df49c60] | 422 | push @tmp,$l if ($i) ; |
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[9f4868c] | 423 | } |
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[df49c60] | 424 | |
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| 425 | @{$list} = @tmp ; |
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| 426 | } |
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| 427 | |
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| 428 | # |
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| 429 | # Break the right hand side of a variable assignment into separate chunks |
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| 430 | # |
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| 431 | sub split_vars($) |
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| 432 | { |
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| 433 | my $line = $_[0] ; |
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| 434 | my (@buf) = split(//,"$line") ; |
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| 435 | |
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| 436 | my $begin = 0 ; |
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| 437 | my @res = () ; |
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| 438 | |
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| 439 | my $depth = 0 ; |
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| 440 | my $state = 0 ; |
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| 441 | |
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| 442 | my $len = $#buf + 1 ; |
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| 443 | for ( my $i = 0 ; $i < $len ; $i++ ) |
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[9b8baa1] | 444 | { |
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[df49c60] | 445 | my $c = @buf[$i] ; |
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| 446 | if ( $state == 0 ) |
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| 447 | { |
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| 448 | if ( "$c" ne " " ) |
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| 449 | { # token |
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| 450 | $begin = $i ; |
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| 451 | $state++ ; |
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| 452 | } |
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| 453 | if ( "$c" eq "\$" ) |
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| 454 | { # variable |
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| 455 | $depth++ ; |
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| 456 | } |
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| 457 | } |
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| 458 | elsif ( $state == 1 ) |
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| 459 | { |
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| 460 | if ( ( "$c" eq "\)" ) or ( "$c" eq "\}" ) ) |
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| 461 | { # variable |
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| 462 | $depth-- ; |
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| 463 | } |
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| 464 | elsif ( ("$c" eq " " ) and ( $depth == 0 ) ) |
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| 465 | { |
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| 466 | push @res, substr($line,$begin,$i-$begin); |
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| 467 | $state-- ; |
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| 468 | } |
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| 469 | elsif ( "$c" eq "\$" ) |
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| 470 | { # variable |
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| 471 | $depth++ ; |
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| 472 | } |
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| 473 | } |
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| 474 | else |
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| 475 | { |
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| 476 | die "split_vars: unknown mode\n" ; |
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| 477 | } |
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[9b8baa1] | 478 | } |
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[df49c60] | 479 | |
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| 480 | if ( $state > 0 ) |
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[9b8baa1] | 481 | { |
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[df49c60] | 482 | push @res, substr($line,$begin,$len-$begin); |
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| 483 | $state = 0 |
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[9b8baa1] | 484 | } |
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[df49c60] | 485 | return @res ; |
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| 486 | } |
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| 487 | |
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| 488 | sub print_var($$$) |
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| 489 | { |
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| 490 | my ($ibuf,$line,$l) = @_ ; # $l .. reference to list |
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| 491 | |
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| 492 | foreach (@{$l}) { |
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| 493 | if ( ( length($line) + length($_) ) < 76 ) |
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| 494 | { |
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| 495 | $line .= " $_"; |
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| 496 | } |
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| 497 | else |
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| 498 | { |
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| 499 | push @{$ibuf}, "$line \\\n"; |
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| 500 | $line = " $_" ; |
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| 501 | } |
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[9b8baa1] | 502 | } |
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[df49c60] | 503 | push @{$ibuf}, "$line\n" ; |
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| 504 | } |
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[9b8baa1] | 505 | |
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[df49c60] | 506 | sub print_line($$) |
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[9b8baa1] | 507 | { |
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[df49c60] | 508 | my ($ibuf,$input) = @_ ; |
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| 509 | my @l = split( / /, $input ); |
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| 510 | my $line = shift @l ; |
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| 511 | |
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| 512 | foreach my $i (@l) { |
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| 513 | if ( ( length($line) + length($i) ) < 76 ) |
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| 514 | { |
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| 515 | $line .= " $i"; |
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| 516 | } |
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| 517 | else |
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| 518 | { |
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| 519 | push @{$ibuf}, "$line \\\n"; |
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| 520 | $line = " $i" ; |
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| 521 | } |
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| 522 | } |
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| 523 | push @{$ibuf}, "$line" ; |
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[9b8baa1] | 524 | } |
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| 525 | |
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[df49c60] | 526 | sub print_script($$) |
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| 527 | { |
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| 528 | my ($ibuf,$input) = @_ ; |
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| 529 | $input =~ s%§%\\\n%g ; |
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| 530 | push @{$ibuf}, $input ; |
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| 531 | } |
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