| 1 | #! /usr/bin/perl -w |
| 2 | |
| 3 | # Script to find the command line options in the Exim spec, and turn them |
| 4 | # into a man page, because people like that. |
| 5 | |
| 6 | |
| 7 | ################################################## |
| 8 | # De-markup one line # |
| 9 | ################################################## |
| 10 | |
| 11 | sub process { |
| 12 | my($x) = $_[0]; |
| 13 | |
| 14 | # Hide SGCAL escapes |
| 15 | |
| 16 | $x =~ s/\@\@/&&a/g; # @@ |
| 17 | $x =~ s/\@\\/&&b/g; # @\ |
| 18 | $x =~ s/\@</&&l/g; # @< |
| 19 | $x =~ s/\@>/&&g/g; # @> |
| 20 | $x =~ s/\@\{/&&c/g; # @{ |
| 21 | $x =~ s/\@\}/&&d/g; # @} |
| 22 | $x =~ s/\@#/&&s/g; # @# |
| 23 | $x =~ s/\@(.)/$1/g; # all other @s |
| 24 | |
| 25 | # Convert SGCAL markup |
| 26 | |
| 27 | $x =~ s/#/ /g; # turn # into a space |
| 28 | $x =~ s/\$~//g; # turn $~ into nothing |
| 29 | $x =~ s/__/_/g; # turn __ into _ |
| 30 | $x =~ s/\$sc\{([^\}]*?)\}/$1/g; # turn $sc{xxx} into xxx |
| 31 | $x =~ s/\$st\{([^\}]*?)\}/$1/g; # turn $st{xxx} into xxx |
| 32 | $x =~ s/\$si\{([^\}]*?)\}/$1/g; # turn $si{xxx} into xxx |
| 33 | $x =~ s/\$tt\{([^\}]*?)\}/$1/g; # turn $tt{xxx} into xxx |
| 34 | $x =~ s/\$it\{([^\}]*?)\}/$1/g; # turn $it{xxx} into xxx |
| 35 | $x =~ s/\$bf\{([^\}]*?)\}/$1/g; # turn $bf{xxx} into xxx |
| 36 | $x =~ s/\$rm\{([^\}]*?)\}/$1/g; # turn $rm{xxx} into xxx |
| 37 | $x =~ s/\$cb\{([^\}]*?)\}/$1/g; # turn $cb{xxx} into xxx |
| 38 | |
| 39 | |
| 40 | $x =~ s/\\\\([^\\]*?)\\\\/\U$1/g; # turn \\xxx\\ into XXX |
| 41 | $x =~ s/\\\(([^)]*?)\)\\/$1/g; # turn \(xxx)\ into xxx |
| 42 | $x =~ s/\\\"([^\"]*?)\"\\/$1/g; # turn \"xxx"\ into xxx |
| 43 | $x =~ s/\\\%([^\%]*?)\%\\/"$1"/g; # turn \%xxx%\ into "xxx" |
| 44 | |
| 45 | $x =~ s/\\\?([^?]*?)\?\\/$1/g; # turn \?URL?\ into URL |
| 46 | $x =~ s/<<([^>]*?)>>/<$1>/g; # turn <<xxx>> into <xxx> |
| 47 | $x =~ s/\\\$([^\$]*?)\$\\/\$$1/g; # turn \$xxx$\ into $xxx |
| 48 | $x =~ s/\\\-([^\\]*?)\-\\/\-$1/g; # turn \-xxx-\ into -xxx |
| 49 | $x =~ s/\\\*\*([^*]*?)\*\*\\/$1/g; # turn \**xxx**\ into xxx |
| 50 | $x =~ s/\[\(([\w\/]*)\)\]//g; # remove inline HTML |
| 51 | |
| 52 | $x =~ s/\\\*([^*]*?)\*\\/$1/g; # turn \*xxx*\ into xxx |
| 53 | $x =~ s/\\([^\\]*?)\\/"$1"/g; # turn \xxx\ into "xxx" |
| 54 | $x =~ s/\$\*\$/\*/g; # turn $*$ into * |
| 55 | $x =~ s/\$t\b//g; # turn $t into nothing |
| 56 | |
| 57 | $x =~ s/::([^:]+)::/$1:/g; # turn ::xxx:: into xxx: |
| 58 | |
| 59 | # Put back escaped SGCAL specials |
| 60 | |
| 61 | $x =~ s/&&a/\@/g; # @@ => @ |
| 62 | $x =~ s/&&b/\\/g; # @\ => \ |
| 63 | $x =~ s/&&l/</g; # @< => < |
| 64 | $x =~ s/&&g/>/g; # @> => > |
| 65 | $x =~ s/&&c/\@{/g; # @{ => @{ |
| 66 | # $x =~ s/&&rc/{/g; # |
| 67 | # $x =~ s/&&rd/}/g; # |
| 68 | $x =~ s/&&d/\@}/g; # @} => @} |
| 69 | $x =~ s/&&s/#/g; # @# |
| 70 | |
| 71 | # Remove any null flags ($$) |
| 72 | |
| 73 | $x =~ s/\$\$//g; |
| 74 | |
| 75 | $x; |
| 76 | } |
| 77 | |
| 78 | |
| 79 | ################################################## |
| 80 | # De-reference a paragraph # |
| 81 | ################################################## |
| 82 | |
| 83 | # Remove sentences or parenthetical comments that contain references. |
| 84 | |
| 85 | sub deref { |
| 86 | my($t) = $_[0]; |
| 87 | |
| 88 | $t =~ s/^(\n*)[^.()]+~~[^.]+\.\s*/$1/; |
| 89 | $t =~ s/\s?\.[^.()]+~~[^.]+\././g; |
| 90 | $t =~ s/\s?\([^~).]+~~[^)]+\)//g; |
| 91 | |
| 92 | $t; |
| 93 | } |
| 94 | |
| 95 | |
| 96 | ################################################## |
| 97 | # Quote what needs quoting # |
| 98 | ################################################## |
| 99 | |
| 100 | # This is for anything that must be quoted in the final output, independent |
| 101 | # of whether it is in "asis" text or not. |
| 102 | |
| 103 | sub mustquote { |
| 104 | my($t) = $_[0]; |
| 105 | $t =~ s/(?<!\\)-/\\-/g; |
| 106 | |
| 107 | $t; |
| 108 | } |
| 109 | |
| 110 | |
| 111 | |
| 112 | ################################################## |
| 113 | # Main Program # |
| 114 | ################################################## |
| 115 | |
| 116 | open(IN, "spec.src") || die "Can't open spec.src\n"; |
| 117 | open(OUT, ">exim.8" ) || die "Can't open exim.8\n"; |
| 118 | |
| 119 | print OUT <<End; |
| 120 | .TH EXIM 8 |
| 121 | .SH NAME |
| 122 | exim \\- a Mail Transfer Agent |
| 123 | .SH SYNOPSIS |
| 124 | .B exim [options] arguments ... |
| 125 | .br |
| 126 | .B mailq [options] arguments ... |
| 127 | .br |
| 128 | .B rsmtp [options] arguments ... |
| 129 | .br |
| 130 | .B rmail [options] arguments ... |
| 131 | .br |
| 132 | .B runq [options] arguments ... |
| 133 | .br |
| 134 | .B newaliases [options] arguments ... |
| 135 | |
| 136 | .SH DESCRIPTION |
| 137 | Exim is a mail transfer agent (MTA) developed at the University of Cambridge. |
| 138 | It is a large program with very many facilities. For a full specification, see |
| 139 | the reference manual. This man page contains only a description of the command |
| 140 | line options. It has been automatically generated from the reference manual |
| 141 | source, which is why the formatting is poor in some places. |
| 142 | |
| 143 | .SH SETTING OPTIONS BY PROGRAM NAME |
| 144 | .TP 10 |
| 145 | \\fBmailq\\fR |
| 146 | Behave as if the option \\-bp were present before any other options. The \\-bp |
| 147 | option requests a listing of the contents of the mail queue on the standard |
| 148 | output. |
| 149 | .TP |
| 150 | \\fBrsmtp\\fR |
| 151 | Behaves as if the option \\-bS were present before any other options, for |
| 152 | compatibility with Smail. The \\-bS option is used for reading in a number of |
| 153 | messages in batched SMTP format. |
| 154 | .TP |
| 155 | \\fBrmail\\fR |
| 156 | Behave as if the \\-i and \\-oee options were present before any other options, |
| 157 | for compatibility with Smail. The name \\fBrmail\\fR is used as an interface by |
| 158 | some UUCP systems. The \\-i option specifies that a dot on a line by itself |
| 159 | does not terminate a non\\-SMTP message; \\-oee requests that errors detected in |
| 160 | non\\-SMTP messages be reported by emailing the sender. |
| 161 | .TP |
| 162 | \\fBrunq\\fR |
| 163 | Behave as if the option \\-q were present before any other options, for |
| 164 | compatibility with Smail. The \\-q option causes a single queue runner process |
| 165 | to be started. It processes the queue once, then exits. |
| 166 | .TP |
| 167 | \\fBnewaliases\\fR |
| 168 | Behave as if the option \\-bi were present before any other options, for |
| 169 | compatibility with Sendmail. This option is used for rebuilding Sendmail's |
| 170 | alias file. Exim does not have the concept of a single alias file, but can be |
| 171 | configured to run a specified command if called with the \\-bi option. |
| 172 | |
| 173 | |
| 174 | .SH OPTIONS |
| 175 | .TP 10 |
| 176 | End |
| 177 | |
| 178 | while (<IN>) { last if /^\.startoptions/; } |
| 179 | die "Can't find start of options\n" if ! defined $_; |
| 180 | |
| 181 | # Find the start of the first option |
| 182 | |
| 183 | while (<IN>) { last if /^\.option/; } |
| 184 | die "Can't find start of first option\n" if ! defined $_; |
| 185 | |
| 186 | # Loop for each individual option |
| 187 | |
| 188 | while (/^\.option (.*)/) |
| 189 | { |
| 190 | $nlpending = 0; |
| 191 | $itemtext = ""; |
| 192 | |
| 193 | printf OUT ("\\fB\\-%s\\fR\n", &mustquote(&process($1))); |
| 194 | |
| 195 | # Process the data for the option |
| 196 | |
| 197 | while (<IN>) |
| 198 | { |
| 199 | last if /^\.(?:option|endoptions)/; |
| 200 | next if /^\.index/; |
| 201 | next if /^\.em\s*$/; |
| 202 | next if /^\.nem\s*$/; |
| 203 | |
| 204 | if (/^\.display(?:\s+flow)?(?:\s+rm)?\s*$/) |
| 205 | { |
| 206 | print OUT &mustquote(&deref($itemtext)); |
| 207 | $itemtext = ""; |
| 208 | print OUT "\n"; |
| 209 | while (($_ = <IN>) !~ /^\.endd/) |
| 210 | { |
| 211 | print OUT " ", &mustquote(&deref(&process($_))) if ! /^\./; |
| 212 | } |
| 213 | $nlpending = 1; |
| 214 | } |
| 215 | |
| 216 | elsif (/^\.display asis\s*$/) |
| 217 | { |
| 218 | print OUT &mustquote(&deref($itemtext)); |
| 219 | $itemtext = ""; |
| 220 | print OUT "\n"; |
| 221 | while (($_ = <IN>) !~ /^\.endd/) |
| 222 | { |
| 223 | print OUT &mustquote(" $_"); |
| 224 | } |
| 225 | $nlpending = 1; |
| 226 | } |
| 227 | |
| 228 | elsif (/^\s*$/) |
| 229 | { |
| 230 | print OUT &mustquote(&deref($itemtext)); |
| 231 | $itemtext = ""; |
| 232 | $nlpending++; |
| 233 | } |
| 234 | |
| 235 | else |
| 236 | { |
| 237 | while ($nlpending > 0) |
| 238 | { |
| 239 | $itemtext .= "\n"; |
| 240 | $nlpending--; |
| 241 | } |
| 242 | $itemtext .= &process($_); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | print OUT &mustquote(&deref($itemtext)); |
| 247 | print OUT ".TP\n"; |
| 248 | } |
| 249 | |
| 250 | # End of g2man |