1 | #!/usr/local/bin/perl |
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2 | |
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3 | use Config; |
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4 | use File::Basename qw(&basename &dirname); |
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5 | use Cwd; |
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6 | |
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7 | # List explicitly here the variables you want Configure to |
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8 | # generate. Metaconfig only looks for shell variables, so you |
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9 | # have to mention them as if they were shell variables, not |
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10 | # %Config entries. Thus you write |
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11 | # $startperl |
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12 | # to ensure Configure will look for $Config{startperl}. |
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13 | |
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14 | # This forces PL files to create target in same directory as PL file. |
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15 | # This is so that make depend always knows where to find PL derivatives. |
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16 | $origdir = cwd; |
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17 | chdir dirname($0); |
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18 | $file = basename($0, '.PL'); |
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19 | $file .= '.com' if $^O eq 'VMS'; |
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20 | |
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21 | open OUT,">$file" or die "Can't create $file: $!"; |
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22 | |
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23 | print "Extracting $file (with variable substitutions)\n"; |
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24 | |
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25 | # In this section, perl variables will be expanded during extraction. |
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26 | # You can use $Config{...} to use Configure variables. |
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27 | |
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28 | print OUT <<"!GROK!THIS!"; |
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29 | $Config{startperl} |
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30 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
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31 | if \$running_under_some_shell; |
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32 | \$startperl = "$Config{startperl}"; |
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33 | \$perlpath = "$Config{perlpath}"; |
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34 | !GROK!THIS! |
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35 | |
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36 | # In the following, perl variables are not expanded during extraction. |
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37 | |
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38 | print OUT <<'!NO!SUBS!'; |
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39 | |
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40 | # $RCSfile: s2p.PL,v $$Revision: 1.1.1.2 $$Date: 2000-04-07 20:47:59 $ |
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41 | # |
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42 | # $Log: not supported by cvs2svn $ |
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43 | |
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44 | =head1 NAME |
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45 | |
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46 | s2p - Sed to Perl translator |
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47 | |
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48 | =head1 SYNOPSIS |
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49 | |
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50 | B<s2p [options] filename> |
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51 | |
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52 | =head1 DESCRIPTION |
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53 | |
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54 | I<s2p> takes a sed script specified on the command line (or from |
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55 | standard input) and produces a comparable I<perl> script on the |
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56 | standard output. |
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57 | |
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58 | =head2 Options |
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59 | |
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60 | Options include: |
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61 | |
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62 | =over 5 |
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63 | |
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64 | =item B<-DE<lt>numberE<gt>> |
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65 | |
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66 | sets debugging flags. |
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67 | |
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68 | =item B<-n> |
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69 | |
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70 | specifies that this sed script was always invoked with a B<sed -n>. |
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71 | Otherwise a switch parser is prepended to the front of the script. |
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72 | |
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73 | =item B<-p> |
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74 | |
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75 | specifies that this sed script was never invoked with a B<sed -n>. |
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76 | Otherwise a switch parser is prepended to the front of the script. |
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77 | |
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78 | =back |
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79 | |
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80 | =head2 Considerations |
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81 | |
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82 | The perl script produced looks very sed-ish, and there may very well |
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83 | be better ways to express what you want to do in perl. For instance, |
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84 | s2p does not make any use of the split operator, but you might want |
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85 | to. |
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86 | |
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87 | The perl script you end up with may be either faster or slower than |
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88 | the original sed script. If you're only interested in speed you'll |
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89 | just have to try it both ways. Of course, if you want to do something |
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90 | sed doesn't do, you have no choice. It's often possible to speed up |
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91 | the perl script by various methods, such as deleting all references to |
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92 | $\ and chop. |
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93 | |
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94 | =head1 ENVIRONMENT |
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95 | |
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96 | s2p uses no environment variables. |
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97 | |
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98 | =head1 AUTHOR |
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99 | |
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100 | Larry Wall E<lt>F<larry@wall.org>E<gt> |
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101 | |
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102 | =head1 FILES |
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103 | |
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104 | =head1 SEE ALSO |
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105 | |
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106 | perl The perl compiler/interpreter |
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107 | |
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108 | a2p awk to perl translator |
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109 | |
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110 | =head1 DIAGNOSTICS |
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111 | |
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112 | =head1 BUGS |
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113 | |
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114 | =cut |
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115 | |
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116 | $indent = 4; |
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117 | $shiftwidth = 4; |
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118 | $l = '{'; $r = '}'; |
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119 | |
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120 | while ($ARGV[0] =~ /^-/) { |
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121 | $_ = shift; |
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122 | last if /^--/; |
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123 | if (/^-D/) { |
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124 | $debug++; |
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125 | open(BODY,'>-'); |
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126 | next; |
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127 | } |
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128 | if (/^-n/) { |
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129 | $assumen++; |
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130 | next; |
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131 | } |
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132 | if (/^-p/) { |
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133 | $assumep++; |
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134 | next; |
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135 | } |
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136 | die "I don't recognize this switch: $_\n"; |
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137 | } |
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138 | |
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139 | unless ($debug) { |
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140 | open(BODY,"+>/tmp/sperl$$") || |
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141 | &Die("Can't open temp file: $!\n"); |
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142 | } |
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143 | |
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144 | if (!$assumen && !$assumep) { |
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145 | print BODY &q(<<'EOT'); |
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146 | : while ($ARGV[0] =~ /^-/) { |
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147 | : $_ = shift; |
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148 | : last if /^--/; |
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149 | : if (/^-n/) { |
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150 | : $nflag++; |
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151 | : next; |
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152 | : } |
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153 | : die "I don't recognize this switch: $_\\n"; |
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154 | : } |
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155 | : |
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156 | EOT |
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157 | } |
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158 | |
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159 | print BODY &q(<<'EOT'); |
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160 | : #ifdef PRINTIT |
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161 | : #ifdef ASSUMEP |
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162 | : $printit++; |
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163 | : #else |
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164 | : $printit++ unless $nflag; |
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165 | : #endif |
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166 | : #endif |
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167 | : <><> |
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168 | : $\ = "\n"; # automatically add newline on print |
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169 | : <><> |
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170 | : #ifdef TOPLABEL |
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171 | : LINE: |
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172 | : while (chop($_ = <>)) { |
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173 | : #else |
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174 | : LINE: |
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175 | : while (<>) { |
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176 | : chop; |
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177 | : #endif |
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178 | EOT |
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179 | |
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180 | LINE: |
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181 | while (<>) { |
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182 | |
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183 | # Wipe out surrounding whitespace. |
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184 | |
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185 | s/[ \t]*(.*)\n$/$1/; |
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186 | |
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187 | # Perhaps it's a label/comment. |
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188 | |
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189 | if (/^:/) { |
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190 | s/^:[ \t]*//; |
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191 | $label = &make_label($_); |
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192 | if ($. == 1) { |
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193 | $toplabel = $label; |
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194 | if (/^(top|(re)?start|redo|begin(ning)|again|input)$/i) { |
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195 | $_ = <>; |
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196 | redo LINE; # Never referenced, so delete it if not a comment. |
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197 | } |
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198 | } |
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199 | $_ = "$label:"; |
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200 | if ($lastlinewaslabel++) { |
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201 | $indent += 4; |
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202 | print BODY &tab, ";\n"; |
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203 | $indent -= 4; |
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204 | } |
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205 | if ($indent >= 2) { |
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206 | $indent -= 2; |
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207 | $indmod = 2; |
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208 | } |
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209 | next; |
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210 | } else { |
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211 | $lastlinewaslabel = ''; |
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212 | } |
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213 | |
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214 | # Look for one or two address clauses |
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215 | |
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216 | $addr1 = ''; |
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217 | $addr2 = ''; |
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218 | if (s/^([0-9]+)//) { |
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219 | $addr1 = "$1"; |
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220 | $addr1 = "\$. == $addr1" unless /^,/; |
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221 | } |
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222 | elsif (s/^\$//) { |
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223 | $addr1 = 'eof()'; |
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224 | } |
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225 | elsif (s|^/||) { |
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226 | $addr1 = &fetchpat('/'); |
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227 | } |
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228 | if (s/^,//) { |
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229 | if (s/^([0-9]+)//) { |
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230 | $addr2 = "$1"; |
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231 | } elsif (s/^\$//) { |
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232 | $addr2 = "eof()"; |
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233 | } elsif (s|^/||) { |
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234 | $addr2 = &fetchpat('/'); |
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235 | } else { |
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236 | &Die("Invalid second address at line $.\n"); |
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237 | } |
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238 | if ($addr2 =~ /^\d+$/) { |
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239 | $addr1 .= "..$addr2"; |
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240 | } |
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241 | else { |
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242 | $addr1 .= "...$addr2"; |
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243 | } |
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244 | } |
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245 | |
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246 | # Now we check for metacommands {, }, and ! and worry |
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247 | # about indentation. |
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248 | |
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249 | s/^[ \t]+//; |
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250 | # a { to keep vi happy |
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251 | if ($_ eq '}') { |
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252 | $indent -= 4; |
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253 | next; |
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254 | } |
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255 | if (s/^!//) { |
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256 | $if = 'unless'; |
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257 | $else = "$r else $l\n"; |
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258 | } else { |
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259 | $if = 'if'; |
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260 | $else = ''; |
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261 | } |
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262 | if (s/^{//) { # a } to keep vi happy |
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263 | $indmod = 4; |
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264 | $redo = $_; |
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265 | $_ = ''; |
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266 | $rmaybe = ''; |
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267 | } else { |
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268 | $rmaybe = "\n$r"; |
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269 | if ($addr2 || $addr1) { |
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270 | $space = ' ' x $shiftwidth; |
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271 | } else { |
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272 | $space = ''; |
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273 | } |
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274 | $_ = &transmogrify(); |
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275 | } |
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276 | |
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277 | # See if we can optimize to modifier form. |
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278 | |
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279 | if ($addr1) { |
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280 | if ($_ !~ /[\n{}]/ && $rmaybe && !$change && |
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281 | $_ !~ / if / && $_ !~ / unless /) { |
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282 | s/;$/ $if $addr1;/; |
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283 | $_ = substr($_,$shiftwidth,1000); |
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284 | } else { |
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285 | $_ = "$if ($addr1) $l\n$change$_$rmaybe"; |
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286 | } |
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287 | $change = ''; |
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288 | next LINE; |
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289 | } |
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290 | } continue { |
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291 | @lines = split(/\n/,$_); |
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292 | for (@lines) { |
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293 | unless (s/^ *<<--//) { |
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294 | print BODY &tab; |
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295 | } |
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296 | print BODY $_, "\n"; |
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297 | } |
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298 | $indent += $indmod; |
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299 | $indmod = 0; |
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300 | if ($redo) { |
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301 | $_ = $redo; |
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302 | $redo = ''; |
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303 | redo LINE; |
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304 | } |
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305 | } |
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306 | if ($lastlinewaslabel++) { |
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307 | $indent += 4; |
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308 | print BODY &tab, ";\n"; |
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309 | $indent -= 4; |
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310 | } |
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311 | |
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312 | if ($appendseen || $tseen || !$assumen) { |
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313 | $printit++ if $dseen || (!$assumen && !$assumep); |
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314 | print BODY &q(<<'EOT'); |
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315 | : #ifdef SAWNEXT |
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316 | : } |
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317 | : continue { |
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318 | : #endif |
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319 | : #ifdef PRINTIT |
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320 | : #ifdef DSEEN |
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321 | : #ifdef ASSUMEP |
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322 | : print if $printit++; |
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323 | : #else |
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324 | : if ($printit) |
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325 | : { print; } |
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326 | : else |
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327 | : { $printit++ unless $nflag; } |
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328 | : #endif |
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329 | : #else |
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330 | : print if $printit; |
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331 | : #endif |
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332 | : #else |
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333 | : print; |
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334 | : #endif |
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335 | : #ifdef TSEEN |
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336 | : $tflag = 0; |
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337 | : #endif |
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338 | : #ifdef APPENDSEEN |
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339 | : if ($atext) { chop $atext; print $atext; $atext = ''; } |
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340 | : #endif |
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341 | EOT |
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342 | } |
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343 | |
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344 | print BODY &q(<<'EOT'); |
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345 | : } |
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346 | EOT |
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347 | |
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348 | unless ($debug) { |
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349 | |
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350 | print &q(<<"EOT"); |
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351 | : $startperl |
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352 | : eval 'exec $perlpath -S \$0 \${1+"\$@"}' |
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353 | : if \$running_under_some_shell; |
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354 | : |
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355 | EOT |
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356 | print"$opens\n" if $opens; |
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357 | seek(BODY, 0, 0) || die "Can't rewind temp file: $!\n"; |
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358 | while (<BODY>) { |
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359 | /^[ \t]*$/ && next; |
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360 | /^#ifdef (\w+)/ && ((${lc $1} || &skip), next); |
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361 | /^#else/ && (&skip, next); |
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362 | /^#endif/ && next; |
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363 | s/^<><>//; |
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364 | print; |
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365 | } |
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366 | } |
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367 | |
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368 | &Cleanup; |
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369 | exit; |
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370 | |
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371 | sub Cleanup { |
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372 | unlink "/tmp/sperl$$"; |
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373 | } |
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374 | sub Die { |
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375 | &Cleanup; |
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376 | die $_[0]; |
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377 | } |
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378 | sub tab { |
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379 | "\t" x ($indent / 8) . ' ' x ($indent % 8); |
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380 | } |
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381 | sub make_filehandle { |
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382 | local($_) = $_[0]; |
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383 | local($fname) = $_; |
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384 | if (!$seen{$fname}) { |
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385 | $_ = "FH_" . $_ if /^\d/; |
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386 | s/[^a-zA-Z0-9]/_/g; |
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387 | s/^_*//; |
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388 | $_ = "\U$_"; |
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389 | if ($fhseen{$_}) { |
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390 | for ($tmp = "a"; $fhseen{"$_$tmp"}; $a++) {} |
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391 | $_ .= $tmp; |
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392 | } |
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393 | $fhseen{$_} = 1; |
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394 | $opens .= &q(<<"EOT"); |
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395 | : open($_, '>$fname') || die "Can't create $fname: \$!"; |
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396 | EOT |
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397 | $seen{$fname} = $_; |
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398 | } |
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399 | $seen{$fname}; |
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400 | } |
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401 | |
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402 | sub make_label { |
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403 | local($label) = @_; |
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404 | $label =~ s/[^a-zA-Z0-9]/_/g; |
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405 | if ($label =~ /^[0-9_]/) { $label = 'L' . $label; } |
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406 | $label = substr($label,0,8); |
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407 | |
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408 | # Could be a reserved word, so capitalize it. |
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409 | substr($label,0,1) =~ y/a-z/A-Z/ |
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410 | if $label =~ /^[a-z]/; |
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411 | |
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412 | $label; |
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413 | } |
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414 | |
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415 | sub transmogrify { |
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416 | { # case |
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417 | if (/^d/) { |
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418 | $dseen++; |
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419 | chop($_ = &q(<<'EOT')); |
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420 | : <<--#ifdef PRINTIT |
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421 | : $printit = 0; |
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422 | : <<--#endif |
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423 | : next LINE; |
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424 | EOT |
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425 | $sawnext++; |
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426 | next; |
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427 | } |
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428 | |
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429 | if (/^n/) { |
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430 | chop($_ = &q(<<'EOT')); |
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431 | : <<--#ifdef PRINTIT |
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432 | : <<--#ifdef DSEEN |
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433 | : <<--#ifdef ASSUMEP |
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434 | : print if $printit++; |
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435 | : <<--#else |
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436 | : if ($printit) |
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437 | : { print; } |
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438 | : else |
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439 | : { $printit++ unless $nflag; } |
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440 | : <<--#endif |
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441 | : <<--#else |
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442 | : print if $printit; |
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443 | : <<--#endif |
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444 | : <<--#else |
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445 | : print; |
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446 | : <<--#endif |
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447 | : <<--#ifdef APPENDSEEN |
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448 | : if ($atext) {chop $atext; print $atext; $atext = '';} |
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449 | : <<--#endif |
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450 | : $_ = <>; |
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451 | : chop; |
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452 | : <<--#ifdef TSEEN |
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453 | : $tflag = 0; |
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454 | : <<--#endif |
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455 | EOT |
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456 | next; |
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457 | } |
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458 | |
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459 | if (/^a/) { |
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460 | $appendseen++; |
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461 | $command = $space . "\$atext .= <<'End_Of_Text';\n<<--"; |
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462 | $lastline = 0; |
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463 | while (<>) { |
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464 | s/^[ \t]*//; |
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465 | s/^[\\]//; |
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466 | unless (s|\\$||) { $lastline = 1;} |
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467 | s/^([ \t]*\n)/<><>$1/; |
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468 | $command .= $_; |
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469 | $command .= '<<--'; |
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470 | last if $lastline; |
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471 | } |
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472 | $_ = $command . "End_Of_Text"; |
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473 | last; |
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474 | } |
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475 | |
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476 | if (/^[ic]/) { |
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477 | if (/^c/) { $change = 1; } |
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478 | $addr1 = 1 if $addr1 eq ''; |
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479 | $addr1 = '$iter = (' . $addr1 . ')'; |
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480 | $command = $space . |
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481 | " if (\$iter == 1) { print <<'End_Of_Text'; }\n<<--"; |
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482 | $lastline = 0; |
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483 | while (<>) { |
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484 | s/^[ \t]*//; |
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485 | s/^[\\]//; |
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486 | unless (s/\\$//) { $lastline = 1;} |
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487 | s/'/\\'/g; |
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488 | s/^([ \t]*\n)/<><>$1/; |
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489 | $command .= $_; |
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490 | $command .= '<<--'; |
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491 | last if $lastline; |
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492 | } |
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493 | $_ = $command . "End_Of_Text"; |
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494 | if ($change) { |
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495 | $dseen++; |
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496 | $change = "$_\n"; |
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497 | chop($_ = &q(<<"EOT")); |
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498 | : <<--#ifdef PRINTIT |
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499 | : $space\$printit = 0; |
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500 | : <<--#endif |
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501 | : ${space}next LINE; |
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502 | EOT |
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503 | $sawnext++; |
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504 | } |
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505 | last; |
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506 | } |
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507 | |
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508 | if (/^s/) { |
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509 | $delim = substr($_,1,1); |
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510 | $len = length($_); |
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511 | $repl = $end = 0; |
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512 | $inbracket = 0; |
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513 | for ($i = 2; $i < $len; $i++) { |
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514 | $c = substr($_,$i,1); |
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515 | if ($c eq $delim) { |
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516 | if ($inbracket) { |
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517 | substr($_, $i, 0) = '\\'; |
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518 | $i++; |
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519 | $len++; |
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520 | } |
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521 | else { |
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522 | if ($repl) { |
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523 | $end = $i; |
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524 | last; |
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525 | } else { |
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526 | $repl = $i; |
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527 | } |
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528 | } |
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529 | } |
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530 | elsif ($c eq '\\') { |
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531 | $i++; |
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532 | if ($i >= $len) { |
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533 | $_ .= 'n'; |
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534 | $_ .= <>; |
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535 | $len = length($_); |
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536 | $_ = substr($_,0,--$len); |
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537 | } |
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538 | elsif (substr($_,$i,1) =~ /^[n]$/) { |
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539 | ; |
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540 | } |
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541 | elsif (!$repl && |
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542 | substr($_,$i,1) =~ /^[(){}\w]$/) { |
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543 | $i--; |
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544 | $len--; |
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545 | substr($_, $i, 1) = ''; |
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546 | } |
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547 | elsif (!$repl && |
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548 | substr($_,$i,1) =~ /^[<>]$/) { |
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549 | substr($_,$i,1) = 'b'; |
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550 | } |
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551 | elsif ($repl && substr($_,$i,1) =~ /^\d$/) { |
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552 | substr($_,$i-1,1) = '$'; |
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553 | } |
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554 | } |
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555 | elsif ($c eq '@') { |
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556 | substr($_, $i, 0) = '\\'; |
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557 | $i++; |
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558 | $len++; |
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559 | } |
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560 | elsif ($c eq '&' && $repl) { |
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561 | substr($_, $i, 0) = '$'; |
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562 | $i++; |
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563 | $len++; |
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564 | } |
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565 | elsif ($c eq '$' && $repl) { |
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566 | substr($_, $i, 0) = '\\'; |
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567 | $i++; |
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568 | $len++; |
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569 | } |
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570 | elsif ($c eq '[' && !$repl) { |
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571 | $i++ if substr($_,$i,1) eq '^'; |
---|
572 | $i++ if substr($_,$i,1) eq ']'; |
---|
573 | $inbracket = 1; |
---|
574 | } |
---|
575 | elsif ($c eq ']') { |
---|
576 | $inbracket = 0; |
---|
577 | } |
---|
578 | elsif ($c eq "\t") { |
---|
579 | substr($_, $i, 1) = '\\t'; |
---|
580 | $i++; |
---|
581 | $len++; |
---|
582 | } |
---|
583 | elsif (!$repl && index("()+",$c) >= 0) { |
---|
584 | substr($_, $i, 0) = '\\'; |
---|
585 | $i++; |
---|
586 | $len++; |
---|
587 | } |
---|
588 | } |
---|
589 | &Die("Malformed substitution at line $.\n") |
---|
590 | unless $end; |
---|
591 | $pat = substr($_, 0, $repl + 1); |
---|
592 | $repl = substr($_, $repl+1, $end-$repl-1); |
---|
593 | $end = substr($_, $end + 1, 1000); |
---|
594 | &simplify($pat); |
---|
595 | $subst = "$pat$repl$delim"; |
---|
596 | $cmd = ''; |
---|
597 | while ($end) { |
---|
598 | if ($end =~ s/^g//) { |
---|
599 | $subst .= 'g'; |
---|
600 | next; |
---|
601 | } |
---|
602 | if ($end =~ s/^p//) { |
---|
603 | $cmd .= ' && (print)'; |
---|
604 | next; |
---|
605 | } |
---|
606 | if ($end =~ s/^w[ \t]*//) { |
---|
607 | $fh = &make_filehandle($end); |
---|
608 | $cmd .= " && (print $fh \$_)"; |
---|
609 | $end = ''; |
---|
610 | next; |
---|
611 | } |
---|
612 | &Die("Unrecognized substitution command". |
---|
613 | "($end) at line $.\n"); |
---|
614 | } |
---|
615 | chop ($_ = &q(<<"EOT")); |
---|
616 | : <<--#ifdef TSEEN |
---|
617 | : $subst && \$tflag++$cmd; |
---|
618 | : <<--#else |
---|
619 | : $subst$cmd; |
---|
620 | : <<--#endif |
---|
621 | EOT |
---|
622 | next; |
---|
623 | } |
---|
624 | |
---|
625 | if (/^p/) { |
---|
626 | $_ = 'print;'; |
---|
627 | next; |
---|
628 | } |
---|
629 | |
---|
630 | if (/^w/) { |
---|
631 | s/^w[ \t]*//; |
---|
632 | $fh = &make_filehandle($_); |
---|
633 | $_ = "print $fh \$_;"; |
---|
634 | next; |
---|
635 | } |
---|
636 | |
---|
637 | if (/^r/) { |
---|
638 | $appendseen++; |
---|
639 | s/^r[ \t]*//; |
---|
640 | $file = $_; |
---|
641 | $_ = "\$atext .= `cat $file 2>/dev/null`;"; |
---|
642 | next; |
---|
643 | } |
---|
644 | |
---|
645 | if (/^P/) { |
---|
646 | $_ = 'print $1 if /^(.*)/;'; |
---|
647 | next; |
---|
648 | } |
---|
649 | |
---|
650 | if (/^D/) { |
---|
651 | chop($_ = &q(<<'EOT')); |
---|
652 | : s/^.*\n?//; |
---|
653 | : redo LINE if $_; |
---|
654 | : next LINE; |
---|
655 | EOT |
---|
656 | $sawnext++; |
---|
657 | next; |
---|
658 | } |
---|
659 | |
---|
660 | if (/^N/) { |
---|
661 | chop($_ = &q(<<'EOT')); |
---|
662 | : $_ .= "\n"; |
---|
663 | : $len1 = length; |
---|
664 | : $_ .= <>; |
---|
665 | : chop if $len1 < length; |
---|
666 | : <<--#ifdef TSEEN |
---|
667 | : $tflag = 0; |
---|
668 | : <<--#endif |
---|
669 | EOT |
---|
670 | next; |
---|
671 | } |
---|
672 | |
---|
673 | if (/^h/) { |
---|
674 | $_ = '$hold = $_;'; |
---|
675 | next; |
---|
676 | } |
---|
677 | |
---|
678 | if (/^H/) { |
---|
679 | $_ = '$hold .= "\n", $hold .= $_;'; |
---|
680 | next; |
---|
681 | } |
---|
682 | |
---|
683 | if (/^g/) { |
---|
684 | $_ = '$_ = $hold;'; |
---|
685 | next; |
---|
686 | } |
---|
687 | |
---|
688 | if (/^G/) { |
---|
689 | $_ = '$_ .= "\n", $_ .= $hold;'; |
---|
690 | next; |
---|
691 | } |
---|
692 | |
---|
693 | if (/^x/) { |
---|
694 | $_ = '($_, $hold) = ($hold, $_);'; |
---|
695 | next; |
---|
696 | } |
---|
697 | |
---|
698 | if (/^b$/) { |
---|
699 | $_ = 'next LINE;'; |
---|
700 | $sawnext++; |
---|
701 | next; |
---|
702 | } |
---|
703 | |
---|
704 | if (/^b/) { |
---|
705 | s/^b[ \t]*//; |
---|
706 | $lab = &make_label($_); |
---|
707 | if ($lab eq $toplabel) { |
---|
708 | $_ = 'redo LINE;'; |
---|
709 | } else { |
---|
710 | $_ = "goto $lab;"; |
---|
711 | } |
---|
712 | next; |
---|
713 | } |
---|
714 | |
---|
715 | if (/^t$/) { |
---|
716 | $_ = 'next LINE if $tflag;'; |
---|
717 | $sawnext++; |
---|
718 | $tseen++; |
---|
719 | next; |
---|
720 | } |
---|
721 | |
---|
722 | if (/^t/) { |
---|
723 | s/^t[ \t]*//; |
---|
724 | $lab = &make_label($_); |
---|
725 | $_ = q/if ($tflag) {$tflag = 0; /; |
---|
726 | if ($lab eq $toplabel) { |
---|
727 | $_ .= 'redo LINE;}'; |
---|
728 | } else { |
---|
729 | $_ .= "goto $lab;}"; |
---|
730 | } |
---|
731 | $tseen++; |
---|
732 | next; |
---|
733 | } |
---|
734 | |
---|
735 | if (/^y/) { |
---|
736 | s/abcdefghijklmnopqrstuvwxyz/a-z/g; |
---|
737 | s/ABCDEFGHIJKLMNOPQRSTUVWXYZ/A-Z/g; |
---|
738 | s/abcdef/a-f/g; |
---|
739 | s/ABCDEF/A-F/g; |
---|
740 | s/0123456789/0-9/g; |
---|
741 | s/01234567/0-7/g; |
---|
742 | $_ .= ';'; |
---|
743 | } |
---|
744 | |
---|
745 | if (/^=/) { |
---|
746 | $_ = 'print $.;'; |
---|
747 | next; |
---|
748 | } |
---|
749 | |
---|
750 | if (/^q/) { |
---|
751 | chop($_ = &q(<<'EOT')); |
---|
752 | : close(ARGV); |
---|
753 | : @ARGV = (); |
---|
754 | : next LINE; |
---|
755 | EOT |
---|
756 | $sawnext++; |
---|
757 | next; |
---|
758 | } |
---|
759 | } continue { |
---|
760 | if ($space) { |
---|
761 | s/^/$space/; |
---|
762 | s/(\n)(.)/$1$space$2/g; |
---|
763 | } |
---|
764 | last; |
---|
765 | } |
---|
766 | $_; |
---|
767 | } |
---|
768 | |
---|
769 | sub fetchpat { |
---|
770 | local($outer) = @_; |
---|
771 | local($addr) = $outer; |
---|
772 | local($inbracket); |
---|
773 | local($prefix,$delim,$ch); |
---|
774 | |
---|
775 | # Process pattern one potential delimiter at a time. |
---|
776 | |
---|
777 | DELIM: while (s#^([^\]+(|)[\\/]*)([]+(|)[\\/])##) { |
---|
778 | $prefix = $1; |
---|
779 | $delim = $2; |
---|
780 | if ($delim eq '\\') { |
---|
781 | s/(.)//; |
---|
782 | $ch = $1; |
---|
783 | $delim = '' if $ch =~ /^[(){}A-Za-mo-z]$/; |
---|
784 | $ch = 'b' if $ch =~ /^[<>]$/; |
---|
785 | $delim .= $ch; |
---|
786 | } |
---|
787 | elsif ($delim eq '[') { |
---|
788 | $inbracket = 1; |
---|
789 | s/^\^// && ($delim .= '^'); |
---|
790 | s/^]// && ($delim .= ']'); |
---|
791 | } |
---|
792 | elsif ($delim eq ']') { |
---|
793 | $inbracket = 0; |
---|
794 | } |
---|
795 | elsif ($inbracket || $delim ne $outer) { |
---|
796 | $delim = '\\' . $delim; |
---|
797 | } |
---|
798 | $addr .= $prefix; |
---|
799 | $addr .= $delim; |
---|
800 | if ($delim eq $outer && !$inbracket) { |
---|
801 | last DELIM; |
---|
802 | } |
---|
803 | } |
---|
804 | $addr =~ s/\t/\\t/g; |
---|
805 | $addr =~ s/\@/\\@/g; |
---|
806 | &simplify($addr); |
---|
807 | $addr; |
---|
808 | } |
---|
809 | |
---|
810 | sub q { |
---|
811 | local($string) = @_; |
---|
812 | local($*) = 1; |
---|
813 | $string =~ s/^:\t?//g; |
---|
814 | $string; |
---|
815 | } |
---|
816 | |
---|
817 | sub simplify { |
---|
818 | $_[0] =~ s/_a-za-z0-9/\\w/ig; |
---|
819 | $_[0] =~ s/a-z_a-z0-9/\\w/ig; |
---|
820 | $_[0] =~ s/a-za-z_0-9/\\w/ig; |
---|
821 | $_[0] =~ s/a-za-z0-9_/\\w/ig; |
---|
822 | $_[0] =~ s/_0-9a-za-z/\\w/ig; |
---|
823 | $_[0] =~ s/0-9_a-za-z/\\w/ig; |
---|
824 | $_[0] =~ s/0-9a-z_a-z/\\w/ig; |
---|
825 | $_[0] =~ s/0-9a-za-z_/\\w/ig; |
---|
826 | $_[0] =~ s/\[\\w\]/\\w/g; |
---|
827 | $_[0] =~ s/\[^\\w\]/\\W/g; |
---|
828 | $_[0] =~ s/\[0-9\]/\\d/g; |
---|
829 | $_[0] =~ s/\[^0-9\]/\\D/g; |
---|
830 | $_[0] =~ s/\\d\\d\*/\\d+/g; |
---|
831 | $_[0] =~ s/\\D\\D\*/\\D+/g; |
---|
832 | $_[0] =~ s/\\w\\w\*/\\w+/g; |
---|
833 | $_[0] =~ s/\\t\\t\*/\\t+/g; |
---|
834 | $_[0] =~ s/(\[.[^]]*\])\1\*/$1+/g; |
---|
835 | $_[0] =~ s/([\w\s!@#%^&-=,:;'"])\1\*/$1+/g; |
---|
836 | } |
---|
837 | |
---|
838 | sub skip { |
---|
839 | local($level) = 0; |
---|
840 | |
---|
841 | while(<BODY>) { |
---|
842 | /^#ifdef/ && $level++; |
---|
843 | /^#else/ && !$level && return; |
---|
844 | /^#endif/ && !$level-- && return; |
---|
845 | } |
---|
846 | |
---|
847 | die "Unterminated `#ifdef' conditional\n"; |
---|
848 | } |
---|
849 | !NO!SUBS! |
---|
850 | |
---|
851 | close OUT or die "Can't close $file: $!"; |
---|
852 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
---|
853 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |
---|
854 | chdir $origdir; |
---|