… | |
… | |
2 | |
2 | |
3 | use Carp; |
3 | use Carp; |
4 | |
4 | |
5 | require Exporter; |
5 | require Exporter; |
6 | require DynaLoader; |
6 | require DynaLoader; |
7 | use AutoLoader; |
|
|
8 | |
7 | |
9 | $VERSION = 0.21; |
8 | $VERSION = "1.06"; |
10 | |
9 | |
11 | @ISA = qw(Exporter DynaLoader); |
10 | @ISA = qw(Exporter DynaLoader); |
12 | |
11 | |
13 | @_consts = qw( |
12 | @_consts = qw( |
14 | ACT_COPYING ACT_DECODING ACT_ENCODING ACT_IDLE ACT_SCANNING |
13 | ACT_COPYING ACT_DECODING ACT_ENCODING ACT_IDLE ACT_SCANNING |
… | |
… | |
16 | FILE_DECODED FILE_ERROR FILE_MISPART FILE_NOBEGIN FILE_NODATA |
15 | FILE_DECODED FILE_ERROR FILE_MISPART FILE_NOBEGIN FILE_NODATA |
17 | FILE_NOEND FILE_OK FILE_READ FILE_TMPFILE |
16 | FILE_NOEND FILE_OK FILE_READ FILE_TMPFILE |
18 | |
17 | |
19 | MSG_ERROR MSG_FATAL MSG_MESSAGE MSG_NOTE MSG_PANIC MSG_WARNING |
18 | MSG_ERROR MSG_FATAL MSG_MESSAGE MSG_NOTE MSG_PANIC MSG_WARNING |
20 | |
19 | |
|
|
20 | OPT_RBUF OPT_WBUF |
21 | OPT_BRACKPOL OPT_DEBUG OPT_DESPERATE OPT_DUMBNESS OPT_ENCEXT |
21 | OPT_BRACKPOL OPT_DEBUG OPT_DESPERATE OPT_DUMBNESS OPT_ENCEXT |
22 | OPT_ERRNO OPT_FAST OPT_IGNMODE OPT_IGNREPLY OPT_OVERWRITE OPT_PREAMB |
22 | OPT_ERRNO OPT_FAST OPT_IGNMODE OPT_IGNREPLY OPT_OVERWRITE OPT_PREAMB |
23 | OPT_PROGRESS OPT_SAVEPATH OPT_TINYB64 OPT_USETEXT OPT_VERBOSE |
23 | OPT_PROGRESS OPT_SAVEPATH OPT_TINYB64 OPT_USETEXT OPT_VERBOSE |
24 | OPT_VERSION OPT_REMOVE OPT_MOREMIME |
24 | OPT_VERSION OPT_REMOVE OPT_MOREMIME OPT_DOTDOT |
25 | |
25 | |
26 | RET_CANCEL RET_CONT RET_EXISTS RET_ILLVAL RET_IOERR RET_NODATA |
26 | RET_CANCEL RET_CONT RET_EXISTS RET_ILLVAL RET_IOERR RET_NODATA |
27 | RET_NOEND RET_NOMEM RET_OK RET_UNSUP |
27 | RET_NOEND RET_NOMEM RET_OK RET_UNSUP |
28 | |
28 | |
29 | B64ENCODED BH_ENCODED PT_ENCODED QP_ENCODED |
29 | B64_ENCODED BH_ENCODED PT_ENCODED QP_ENCODED |
30 | XX_ENCODED UU_ENCODED YENC_ENCODED |
30 | XX_ENCODED UU_ENCODED YENC_ENCODED |
31 | ); |
31 | ); |
32 | |
32 | |
33 | @_funcs = qw( |
33 | @_funcs = qw( |
34 | Initialize CleanUp GetOption SetOption strerror SetMsgCallback |
34 | Initialize CleanUp GetOption SetOption strerror SetMsgCallback |
… | |
… | |
68 | } |
68 | } |
69 | |
69 | |
70 | # encoding type -> string mapping |
70 | # encoding type -> string mapping |
71 | sub strencoding($) { |
71 | sub strencoding($) { |
72 | return 'uuencode' if $_[0] == &UU_ENCODED; |
72 | return 'uuencode' if $_[0] == &UU_ENCODED; |
73 | return 'base64' if $_[0] == &B64ENCODED; |
73 | return 'base64' if $_[0] == &B64_ENCODED; |
74 | return 'yenc' if $_[0] == &YENC_ENCODED; |
74 | return 'yenc' if $_[0] == &YENC_ENCODED; |
75 | return 'binhex' if $_[0] == &BH_ENCODED; |
75 | return 'binhex' if $_[0] == &BH_ENCODED; |
76 | return 'plaintext' if $_[0] == &PT_ENCODED; |
76 | return 'plaintext' if $_[0] == &PT_ENCODED; |
77 | return 'quoted-printable' if $_[0] == &QP_ENCODED; |
77 | return 'quoted-printable' if $_[0] == &QP_ENCODED; |
78 | return 'xxencode' if $_[0] == &XX_ENCODED; |
78 | return 'xxencode' if $_[0] == &XX_ENCODED; |
… | |
… | |
96 | |
96 | |
97 | Convert::UUlib - Perl interface to the uulib library (a.k.a. uudeview/uuenview). |
97 | Convert::UUlib - Perl interface to the uulib library (a.k.a. uudeview/uuenview). |
98 | |
98 | |
99 | =head1 SYNOPSIS |
99 | =head1 SYNOPSIS |
100 | |
100 | |
101 | use Convert::UUlib; |
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102 | |
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103 | =head1 DESCRIPTION |
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104 | |
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105 | Read the file uulibdoc.dvi.gz and the example-decoder source. Sorry - more |
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106 | to come once people use me ;) |
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107 | |
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108 | =head1 SMALL EXAMPLE DECODER |
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109 | |
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110 | The following code excerpt is a minimal decoder program. It reads all |
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111 | files given on the commandline and decodes any files in it. |
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112 | |
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113 | use Convert::UUlib ':all'; |
101 | use Convert::UUlib ':all'; |
114 | |
102 | |
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103 | # read all the files named on the commandline and decode them |
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104 | # into the CURRENT directory. See below for a longer example. |
115 | LoadFile($_) for @ARGV; |
105 | LoadFile $_ for @ARGV; |
116 | |
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117 | for($i=0; $uu=GetFileListItem($i); $i++) { |
106 | for (my $i = 0; my $uu = GetFileListItem $i; $i++) { |
118 | $uu->decode if $uu->state & FILE_OK; |
107 | if ($uu->state & FILE_OK) { |
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108 | $uu->decode; |
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109 | print $uu->filename, "\n"; |
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110 | } |
119 | } |
111 | } |
120 | |
112 | |
121 | =head1 LARGE EXAMPLE DECODER |
113 | =head1 DESCRIPTION |
122 | |
114 | |
123 | This is the file C<example-decoder> from the distribution, put here |
115 | Read the file doc/library.pdf from the distribution for in-depth |
124 | instead of more thorough documentation. |
116 | information about the C-library used in this interface, and the rest of |
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117 | this document and especially the non-trivial decoder program at the end. |
125 | |
118 | |
126 | # decode all the files in the directory uusrc/ and copy |
119 | =head1 EXPORTED CONSTANTS |
127 | # the resulting files to uudst/ |
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128 | |
120 | |
129 | use Convert::UUlib ':all'; |
121 | =head2 Action code constants |
130 | |
122 | |
131 | sub namefilter { |
123 | ACT_IDLE we don't do anything |
132 | my($path)=@_; |
124 | ACT_SCANNING scanning an input file |
133 | $path=~s/^.*[\/\\]//; |
125 | ACT_DECODING decoding into a temp file |
134 | $path; |
126 | ACT_COPYING copying temp to target |
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127 | ACT_ENCODING encoding a file |
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128 | |
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129 | =head2 Message severity levels |
|
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130 | |
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131 | MSG_MESSAGE just a message, nothing important |
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132 | MSG_NOTE something that should be noticed |
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133 | MSG_WARNING important msg, processing continues |
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134 | MSG_ERROR processing has been terminated |
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135 | MSG_FATAL decoder cannot process further requests |
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136 | MSG_PANIC recovery impossible, app must terminate |
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137 | |
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138 | =head2 Options |
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139 | |
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140 | OPT_VERSION version number MAJOR.MINORplPATCH (ro) |
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141 | OPT_FAST assumes only one part per file |
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142 | OPT_DUMBNESS switch off the program's intelligence |
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143 | OPT_BRACKPOL give numbers in [] higher precendence |
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144 | OPT_VERBOSE generate informative messages |
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145 | OPT_DESPERATE try to decode incomplete files |
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146 | OPT_IGNREPLY ignore RE:plies (off by default) |
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147 | OPT_OVERWRITE whether it's OK to overwrite ex. files |
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148 | OPT_SAVEPATH prefix to save-files on disk |
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149 | OPT_IGNMODE ignore the original file mode |
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150 | OPT_DEBUG print messages with FILE/LINE info |
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151 | OPT_ERRNO get last error code for RET_IOERR (ro) |
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152 | OPT_PROGRESS retrieve progress information |
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153 | OPT_USETEXT handle text messages |
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154 | OPT_PREAMB handle Mime preambles/epilogues |
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155 | OPT_TINYB64 detect short B64 outside of Mime |
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156 | OPT_ENCEXT extension for single-part encoded files |
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157 | OPT_REMOVE remove input files after decoding (dangerous) |
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158 | OPT_MOREMIME strict MIME adherence |
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159 | OPT_DOTDOT ".."-unescaping has not yet been done on input files |
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160 | OPT_RBUF set default read I/O buffer size in bytes *EXPERIMENTAL* |
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161 | OPT_WBUF set default write I/O buffer size in bytes *EXPERIMENTAL* |
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162 | |
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163 | =head2 Result/Error codes |
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164 | |
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165 | RET_OK everything went fine |
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166 | RET_IOERR I/O Error - examine errno |
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167 | RET_NOMEM not enough memory |
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168 | RET_ILLVAL illegal value for operation |
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169 | RET_NODATA decoder didn't find any data |
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170 | RET_NOEND encoded data wasn't ended properly |
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171 | RET_UNSUP unsupported function (encoding) |
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172 | RET_EXISTS file exists (decoding) |
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173 | RET_CONT continue -- special from ScanPart |
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174 | RET_CANCEL operation canceled |
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175 | |
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176 | =head2 File States |
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177 | |
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178 | This code is zero, i.e. "false": |
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179 | |
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180 | UUFILE_READ Read in, but not further processed |
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181 | |
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182 | The following state codes are or'ed together: |
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183 | |
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184 | FILE_MISPART Missing Part(s) detected |
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185 | FILE_NOBEGIN No 'begin' found |
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186 | FILE_NOEND No 'end' found |
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187 | FILE_NODATA File does not contain valid uudata |
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188 | FILE_OK All Parts found, ready to decode |
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189 | FILE_ERROR Error while decoding |
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190 | FILE_DECODED Successfully decoded |
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191 | FILE_TMPFILE Temporary decoded file exists |
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192 | |
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193 | =head2 Encoding types |
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194 | |
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195 | UU_ENCODED UUencoded data |
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196 | B64_ENCODED Mime-Base64 data |
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197 | XX_ENCODED XXencoded data |
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198 | BH_ENCODED Binhex encoded |
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199 | PT_ENCODED Plain-Text encoded (MIME) |
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200 | QP_ENCODED Quoted-Printable (MIME) |
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201 | YENC_ENCODED yEnc encoded (non-MIME) |
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202 | |
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203 | =head1 EXPORTED FUNCTIONS |
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204 | |
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205 | =head2 Initializing and cleanup |
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206 | |
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207 | Initialize is automatically called when the module is loaded and allocates |
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208 | quite a small amount of memory for todays machines ;) CleanUp releases that |
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209 | again. |
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210 | |
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211 | On my machine, a fairly complete decode with DBI backend needs about 10MB |
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212 | RSS to decode 20000 files. |
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213 | |
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214 | =over 4 |
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215 | |
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216 | =item Initialize |
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217 | |
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218 | Not normally necessary, (re-)initializes the library. |
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219 | |
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220 | =item CleanUp |
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221 | |
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222 | Not normally necessary, could be called at the end to release memory |
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223 | before starting a new decoding round. |
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224 | |
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225 | =back |
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226 | |
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227 | =head2 Setting and querying options |
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228 | |
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229 | =over 4 |
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230 | |
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231 | =item $option = GetOption OPT_xxx |
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232 | |
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233 | =item SetOption OPT_xxx, opt-value |
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234 | |
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235 | =back |
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236 | |
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237 | See the C<OPT_xxx> constants above to see which options exist. |
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238 | |
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239 | =head2 Setting various callbacks |
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240 | |
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241 | =over 4 |
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242 | |
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243 | =item SetMsgCallback [callback-function] |
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244 | |
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245 | =item SetBusyCallback [callback-function] |
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246 | |
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247 | =item SetFileCallback [callback-function] |
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248 | |
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249 | =item SetFNameFilter [callback-function] |
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250 | |
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251 | =back |
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252 | |
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253 | =head2 Call the currently selected FNameFilter |
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254 | |
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255 | =over 4 |
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256 | |
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257 | =item $file = FNameFilter $file |
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258 | |
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259 | =back |
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260 | |
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261 | =head2 Loading sourcefiles, optionally fuzzy merge and start decoding |
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262 | |
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263 | =over 4 |
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264 | |
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265 | =item ($retval, $count) = LoadFile $fname, [$id, [$delflag, [$partno]]] |
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266 | |
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267 | Load the given file and scan it for encoded contents. Optionally tag it |
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268 | with the given id, and if C<$delflag> is true, delete the file after it |
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269 | is no longer necessary. If you are certain of the part number, you can |
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270 | specify it as the last argument. |
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271 | |
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272 | A better (usually faster) way of doing this is using the C<SetFNameFilter> |
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273 | functionality. |
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274 | |
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275 | =item $retval = Smerge $pass |
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276 | |
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277 | If you are desperate, try to call C<Smerge> with increasing C<$pass> |
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278 | values, beginning at C<0>, to try to merge parts that usually would not |
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279 | have been merged. |
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280 | |
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281 | Most probably this will result in garbled files, so never do this by |
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282 | default. |
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283 | |
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284 | =item $item = GetFileListItem $item_number |
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285 | |
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286 | Return the C<$item> structure for the C<$item_number>'th found file, or |
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287 | C<undef> of no file with that number exists. |
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288 | |
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289 | The first file has number C<0>, and the series has no holes, so you can |
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290 | iterate over all files by starting with zero and incrementing until you |
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291 | hit C<undef>. |
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292 | |
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293 | =back |
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294 | |
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295 | =head2 Decoding files |
|
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296 | |
|
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297 | =over 4 |
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298 | |
|
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299 | =item $retval = $item->rename($newname) |
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300 | |
|
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301 | Change the ondisk filename where the decoded file will be saved. |
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302 | |
|
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303 | =item $retval = $item->decode_temp |
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304 | |
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305 | Decode the file into a temporary location, use C<< $item->infile >> to |
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306 | retrieve the temporary filename. |
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307 | |
|
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308 | =item $retval = $item->remove_temp |
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309 | |
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310 | Remove the temporarily decoded file again. |
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311 | |
|
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312 | =item $retval = $item->decode([$target_path]) |
|
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313 | |
|
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314 | Decode the file to it's destination, or the given target path. |
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315 | |
|
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316 | =item $retval = $item->info(callback-function) |
|
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317 | |
|
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318 | =back |
|
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319 | |
|
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320 | =head2 Querying (and setting) item attributes |
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321 | |
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322 | =over 4 |
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323 | |
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324 | =item $state = $item->state |
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325 | |
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326 | =item $mode = $item->mode([newmode]) |
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327 | |
|
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328 | =item $uudet = $item->uudet |
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329 | |
|
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330 | =item $size = $item->size |
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331 | |
|
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332 | =item $filename = $item->filename([newfilename}) |
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333 | |
|
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334 | =item $subfname = $item->subfname |
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335 | |
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336 | =item $mimeid = $item->mimeid |
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337 | |
|
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338 | =item $mimetype = $item->mimetype |
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339 | |
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340 | =item $binfile = $item->binfile |
|
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341 | |
|
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342 | =back |
|
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343 | |
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344 | =head2 Information about source parts |
|
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345 | |
|
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346 | =over 4 |
|
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347 | |
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348 | =item $parts = $item->parts |
|
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349 | |
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350 | Return information about all parts (source files) used to decode the file |
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351 | as a list of hashrefs with the following structure: |
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352 | |
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353 | { |
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354 | partno => <integer describing the part number, starting with 1>, |
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355 | # the following member sonly exist when they contain useful information |
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356 | sfname => <local pathname of the file where this part is from>, |
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357 | filename => <the ondisk filename of the decoded file>, |
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358 | subfname => <used to cluster postings, possibly the posting filename>, |
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359 | subject => <the subject of the posting/mail>, |
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360 | origin => <the possible source (From) address>, |
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361 | mimetype => <the possible mimetype of the decoded file>, |
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362 | mimeid => <the id part of the Content-Type>, |
135 | } |
363 | } |
136 | |
364 | |
137 | sub busycb { |
365 | Usually you are interested mostly the C<sfname> and possibly the C<partno> |
138 | my($action,$curfile,$partno,$numparts,$percent,$fsize)=@_; |
366 | and C<filename> members. |
139 | $_[0]=straction($action); |
|
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140 | print "busy_callback(",join(",",@_),")\n"; |
|
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141 | 0; |
|
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142 | } |
|
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143 | |
367 | |
144 | SetOption (OPT_IGNMODE, 1); |
368 | =back |
145 | SetOption (OPT_VERBOSE, 1); |
|
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146 | |
369 | |
147 | # show the three ways you can set callback functions |
|
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148 | SetFNameFilter (\&namefilter); |
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149 | |
|
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150 | SetBusyCallback ("busycb",333); |
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151 | |
|
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152 | SetMsgCallback (sub { |
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153 | my($msg,$level)=@_; |
|
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154 | print uc(strmsglevel($_[1])),": $msg\n"; |
|
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155 | }); |
|
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156 | |
|
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157 | for(<uusrc/*>) { |
|
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158 | my($retval,$count)=LoadFile ($_,$_,1); |
|
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159 | print "file($_), status(",strerror($retval),") parts($count)\n"; |
|
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160 | } |
|
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161 | |
|
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162 | SetOption (OPT_SAVEPATH, "uudst/"); |
|
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163 | |
|
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164 | $i=0; |
|
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165 | while($uu=GetFileListItem($i)) { |
|
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166 | $i++; |
|
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167 | print "file nr. $i"; |
|
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168 | print " state ",$uu->state; |
|
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169 | print " mode ",$uu->mode; |
|
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170 | print " uudet ",strencoding($uu->uudet); |
|
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171 | print " size ",$uu->size; |
|
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172 | print " filename ",$uu->filename; |
|
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173 | print " subfname ",$uu->subfname; |
|
|
174 | print " mimeid ",$uu->mimeid; |
|
|
175 | print " mimetype ",$uu->mimetype; |
|
|
176 | print "\n"; |
|
|
177 | |
|
|
178 | # print additional info about all parts |
|
|
179 | for($uu->parts) { |
|
|
180 | while(my($k,$v)=each(%$_)) { |
|
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181 | print "$k > $v, "; |
|
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182 | } |
|
|
183 | print "\n"; |
|
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184 | } |
|
|
185 | |
|
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186 | $uu->decode_temp; |
|
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187 | print " temporarily decoded to ",$uu->binfile,"\n"; |
|
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188 | $uu->remove_temp; |
|
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189 | |
|
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190 | print strerror($uu->decode); |
|
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191 | print " saved as uudst/",$uu->filename,"\n"; |
|
|
192 | } |
|
|
193 | |
|
|
194 | print "cleanup...\n"; |
|
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195 | |
|
|
196 | CleanUp(); |
|
|
197 | |
|
|
198 | =head1 Exported constants |
|
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199 | |
|
|
200 | Action code constants: |
|
|
201 | |
|
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202 | ACT_COPYING ACT_DECODING ACT_ENCODING |
|
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203 | ACT_IDLE ACT_SCANNING |
|
|
204 | |
|
|
205 | File status flags: |
|
|
206 | |
|
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207 | FILE_DECODED FILE_ERROR FILE_MISPART |
|
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208 | FILE_NOBEGIN FILE_NODATA FILE_NOEND |
|
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209 | FILE_OK FILE_READ FILE_TMPFILE |
|
|
210 | |
|
|
211 | Message severity levels: |
|
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212 | |
|
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213 | MSG_ERROR MSG_FATAL MSG_MESSAGE |
|
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214 | MSG_NOTE MSG_PANIC MSG_WARNING |
|
|
215 | |
|
|
216 | Options: |
|
|
217 | |
|
|
218 | OPT_BRACKPOL OPT_DEBUG OPT_DESPERATE OPT_DUMBNESS |
|
|
219 | OPT_ENCEXT OPT_ERRNO OPT_FAST OPT_IGNMODE |
|
|
220 | OPT_IGNREPLY OPT_OVERWRITE OPT_PREAMB OPT_PROGRESS |
|
|
221 | OPT_SAVEPATH OPT_TINYB64 OPT_USETEXT OPT_VERBOSE |
|
|
222 | OPT_VERSION OPT_REMOVE OPT_MOREMIME |
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223 | |
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224 | Error/Result codes: |
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225 | |
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226 | RET_CANCEL RET_CONT RET_EXISTS RET_ILLVAL RET_IOERR |
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227 | RET_NODATA RET_NOEND RET_NOMEM RET_OK RET_UNSUP |
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228 | |
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229 | Encoding types: |
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230 | |
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231 | B64ENCODED BH_ENCODED PT_ENCODED QP_ENCODED XX_ENCODED |
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232 | UU_ENCODED YENC_ENCODED |
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233 | |
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234 | =head1 Exported functions |
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235 | |
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236 | Initializing and cleanup (Initialize is automatically called when the |
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237 | module is loaded and allocates quite a bit of memory. CleanUp releases |
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238 | that again). |
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239 | |
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240 | Initialize; # not normally necessary |
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241 | CleanUp; # could be called at the end to release memory |
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242 | |
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243 | Setting and querying options: |
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244 | |
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245 | $option = GetOption OPT_xxx; |
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246 | SetOption OPT_xxx, opt-value; |
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247 | |
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248 | Error and action values => stringified: |
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249 | |
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250 | $msg = straction ACT_xxx; |
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251 | $msg = strerror RET_xxx; |
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252 | |
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253 | Setting various callbacks: |
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254 | |
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255 | SetMsgCallback [callback-function]; |
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256 | SetBusyCallback [callback-function]; |
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257 | SetFileCallback [callback-function]; |
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258 | SetFNameFilter [callback-function]; |
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259 | |
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260 | Call the currently selected FNameFilter: |
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261 | |
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262 | $file = FNameFilter $file; |
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263 | |
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264 | Loading sourcefiles, optionally fuzzy merge and start decoding: |
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265 | |
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266 | ($retval, $count) = LoadFile $fname, [$id, [$delflag]]; |
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267 | $retval = Smerge $pass; |
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268 | $item = GetFileListItem $item_number; |
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269 | |
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270 | The procedural interface is undocumented, use the following methods instead: |
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271 | |
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272 | $retval = $item->rename($newname); |
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273 | $retval = $item->decode_temp; |
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274 | $retval = $item->remove_temp; |
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275 | $retval = $item->decode([$target_path]); |
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276 | $retval = $item->info(callback-function); |
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277 | |
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278 | Querying (and setting) item attributes: |
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279 | |
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280 | $state = $item->state; |
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281 | $mode = $item->mode([newmode]); |
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282 | $uudet = $item->uudet; |
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283 | $size = $item->size; |
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284 | $filename = $item->filename([newfilename}); |
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285 | $subfname = $item->subfname; |
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286 | $mimeid = $item->mimeid; |
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287 | $mimetype = $item->mimetype; |
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288 | $binfile = $item->binfile; |
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289 | |
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290 | Totally undocumented and unsupported(!): |
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291 | |
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292 | $parts = $item->parts; |
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293 | |
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294 | Functions below not documented and not very well tested: |
370 | =head2 Functions below not documented and not very well tested |
295 | |
371 | |
296 | int QuickDecode () ; |
372 | QuickDecode |
297 | int EncodeMulti () ; |
373 | EncodeMulti |
298 | int EncodePartial () ; |
374 | EncodePartial |
299 | int EncodeToStream () ; |
375 | EncodeToStream |
300 | int EncodeToFile () ; |
376 | EncodeToFile |
301 | int E_PrepSingle () ; |
377 | E_PrepSingle |
302 | int E_PrepPartial () ; |
378 | E_PrepPartial |
303 | |
379 | |
304 | =head2 EXTENSION FUNCTIONS |
380 | =head2 EXTENSION FUNCTIONS |
305 | |
381 | |
306 | Functions found in this module but not documented in the uulib documentation: |
382 | Functions found in this module but not documented in the uulib documentation: |
307 | |
383 | |
308 | =over 4 |
384 | =over 4 |
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385 | |
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386 | =item $msg = straction ACT_xxx |
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387 | |
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388 | Return a human readable string representing the given action code. |
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389 | |
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390 | =item $msg = strerror RET_xxx |
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391 | |
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392 | Return a human readable string representing the given error code. |
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393 | |
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394 | =item $str = strencoding xxx_ENCODED |
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395 | |
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396 | Return the name of the encoding type as a string. |
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397 | |
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398 | =item $str = strmsglevel MSG_xxx |
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399 | |
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400 | Returns the message level as a string. |
309 | |
401 | |
310 | =item SetFileNameCallback $cb |
402 | =item SetFileNameCallback $cb |
311 | |
403 | |
312 | Sets (or queries) the FileNameCallback, which is called whenever the |
404 | Sets (or queries) the FileNameCallback, which is called whenever the |
313 | decoding library can't find a filename and wants to extract a filename |
405 | decoding library can't find a filename and wants to extract a filename |
… | |
… | |
336 | return (); |
428 | return (); |
337 | } |
429 | } |
338 | |
430 | |
339 | =back |
431 | =back |
340 | |
432 | |
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433 | =head1 LARGE EXAMPLE DECODER |
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434 | |
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435 | This is the file C<example-decoder> from the distribution, put here |
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436 | instead of more thorough documentation. |
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437 | |
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438 | # decode all the files in the directory uusrc/ and copy |
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439 | # the resulting files to uudst/ |
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440 | |
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441 | use Convert::UUlib ':all'; |
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442 | |
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443 | sub namefilter { |
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444 | my($path)=@_; |
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445 | $path=~s/^.*[\/\\]//; |
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446 | $path; |
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447 | } |
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448 | |
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449 | sub busycb { |
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450 | my ($action, $curfile, $partno, $numparts, $percent, $fsize) = @_; |
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451 | $_[0]=straction($action); |
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452 | print "busy_callback(", (join ",",@_), ")\n"; |
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453 | 0; |
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454 | } |
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455 | |
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456 | SetOption OPT_IGNMODE, 1; |
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457 | SetOption OPT_VERBOSE, 1; |
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458 | |
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459 | # show the three ways you can set callback functions. I normally |
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460 | # prefer the one with the sub inplace. |
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461 | SetFNameFilter \&namefilter; |
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462 | |
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463 | SetBusyCallback "busycb", 333; |
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464 | |
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465 | SetMsgCallback sub { |
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466 | my ($msg, $level) = @_; |
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467 | print uc strmsglevel $_[1], ": $msg\n"; |
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468 | }; |
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469 | |
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470 | # the following non-trivial FileNameCallback takes care |
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471 | # of some subject lines not detected properly by uulib: |
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472 | SetFileNameCallback sub { |
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473 | return unless $_[1]; # skip "Re:"-plies et al. |
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474 | local $_ = $_[0]; |
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475 | |
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476 | # the following rules are rather effective on some newsgroups, |
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477 | # like alt.binaries.games.anime, where non-mime, uuencoded data |
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478 | # is very common |
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479 | |
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480 | # if we find some *.rar, take it as the filename |
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481 | return $1 if /(\S{3,}\.(?:[rstuvwxyz]\d\d|rar))\s/i; |
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482 | |
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483 | # one common subject format |
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484 | return $1 if /- "(.{2,}?\..+?)" (?:yenc )?\(\d+\/\d+\)/i; |
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485 | |
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486 | # - filename.par (04/55) |
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487 | return $1 if /- "?(\S{3,}\.\S+?)"? (?:yenc )?\(\d+\/\d+\)/i; |
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488 | |
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489 | # - (xxx) No. 1 sayuri81.jpg 756565 bytes |
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490 | # - (20 files) No.17 Roseanne.jpg [2/2] |
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491 | return $1 if /No\.[ 0-9]+ (\S+\....) (?:\d+ bytes )?\[/; |
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492 | |
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493 | # otherwise just pass what we have |
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494 | return (); |
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495 | }; |
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496 | |
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497 | # now read all files in the directory uusrc/* |
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498 | for(<uusrc/*>) { |
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499 | my($retval,$count)=LoadFile ($_, $_, 1); |
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500 | print "file($_), status(", strerror $retval, ") parts($count)\n"; |
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501 | } |
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502 | |
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503 | SetOption OPT_SAVEPATH, "uudst/"; |
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504 | |
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505 | # now wade through all files and their source parts |
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506 | $i = 0; |
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507 | while ($uu = GetFileListItem($i)) { |
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508 | $i++; |
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509 | print "file nr. $i"; |
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510 | print " state ", $uu->state; |
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511 | print " mode ", $uu->mode; |
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512 | print " uudet ", strencoding $uu->uudet; |
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513 | print " size ", $uu->size; |
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514 | print " filename ", $uu->filename; |
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515 | print " subfname ", $uu->subfname; |
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516 | print " mimeid ", $uu->mimeid; |
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517 | print " mimetype ", $uu->mimetype; |
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518 | print "\n"; |
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519 | |
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520 | # print additional info about all parts |
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521 | for ($uu->parts) { |
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522 | while (my ($k, $v) = each %$_) { |
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523 | print "$k > $v, "; |
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524 | } |
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525 | print "\n"; |
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526 | } |
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527 | |
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528 | $uu->decode_temp; |
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529 | print " temporarily decoded to ", $uu->binfile, "\n"; |
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530 | $uu->remove_temp; |
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531 | |
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532 | print strerror $uu->decode; |
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533 | print " saved as uudst/", $uu->filename, "\n"; |
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534 | } |
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535 | |
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536 | print "cleanup...\n"; |
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537 | |
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538 | CleanUp(); |
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539 | |
341 | =head1 AUTHOR |
540 | =head1 AUTHOR |
342 | |
541 | |
343 | Marc Lehmann <pcg@goof.com>, the original uulib library was written by |
542 | Marc Lehmann <schmorp@schmorp.de>, the original uulib library was written |
344 | Frank Pilhofer <fp@informatik.uni-frankfurt.de>. |
543 | by Frank Pilhofer <fp@informatik.uni-frankfurt.de>, and later heavily |
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544 | bugfixed by Marc Lehmann. |
345 | |
545 | |
346 | =head1 SEE ALSO |
546 | =head1 SEE ALSO |
347 | |
547 | |
348 | perl(1), uudeview homepage at http://www.uni-frankfurt.de/~fp/uudeview/. |
548 | perl(1), uudeview homepage at http://www.uni-frankfurt.de/~fp/uudeview/. |
349 | |
549 | |