| 12 |
|
# to the desired routines |
| 13 |
|
# usegroupchecker(groupchecker) : Set a groupchecker |
| 14 |
|
# parse() : Parse the file |
| 15 |
– |
# checkparam($name,$par) : Exit with an error message if parameter |
| 16 |
– |
# is undefined in tag $name |
| 15 |
|
# line() : return the current line number of the parse |
| 16 |
< |
|
| 17 |
< |
package Switcher; |
| 16 |
> |
# tagstartline() : return the line number on which the current |
| 17 |
> |
# tag was opened |
| 18 |
> |
# stream(filehandle) : stream output to the filehandle if not handled |
| 19 |
> |
# in any other way |
| 20 |
> |
package ActiveDoc::Switcher; |
| 21 |
|
require 5.001; |
| 22 |
|
use Carp; |
| 23 |
|
|
| 27 |
|
my $objectname=shift; |
| 28 |
|
my $groupchecker=shift; |
| 29 |
|
|
| 30 |
< |
my $self = {}; |
| 30 |
> |
$self = {}; |
| 31 |
|
$self->{allw}=$objectname; |
| 32 |
|
bless $self, $class; |
| 33 |
|
$self->_initialise($file); |
| 34 |
|
return $self; |
| 35 |
|
} |
| 36 |
|
|
| 37 |
+ |
sub stream { |
| 38 |
+ |
my $self=shift; |
| 39 |
+ |
|
| 40 |
+ |
$self->{stream}=shift; |
| 41 |
+ |
} |
| 42 |
+ |
|
| 43 |
+ |
sub streamexclude { |
| 44 |
+ |
my $self=shift; |
| 45 |
+ |
my $tag=shift; |
| 46 |
+ |
|
| 47 |
+ |
$tag=~tr/A-Z/a-z/; |
| 48 |
+ |
$self->{streamexclude}{$tag}=1; |
| 49 |
+ |
} |
| 50 |
+ |
|
| 51 |
|
sub _initialise (hash1) { |
| 52 |
|
my $self=shift; |
| 53 |
|
$self->{filename}=shift; |
| 59 |
|
|
| 60 |
|
# Add a default TagContainer |
| 61 |
|
use ActiveDoc::TagContainer; |
| 62 |
< |
$self->{tagcontainer}=TagContainer->new(); |
| 62 |
> |
$self->{tagcontainer}=ActiveDoc::TagContainer->new(); |
| 63 |
|
|
| 64 |
|
} |
| 65 |
|
|
| 80 |
|
sub parse { |
| 81 |
|
my $self=shift; |
| 82 |
|
my $char; |
| 83 |
+ |
my $buf; |
| 84 |
|
$self->{linecount}=0; |
| 85 |
|
$self->_resetvars(); |
| 86 |
+ |
$self->{streamstore}=""; |
| 87 |
+ |
$self->{streamtmp}=""; |
| 88 |
|
|
| 89 |
|
# Open the file |
| 90 |
|
use FileHandle; |
| 91 |
< |
my $filehandle=FileHandle->new(); |
| 92 |
< |
open( $filehandle , "$self->{filename}" ) |
| 93 |
< |
or carp "Switcher: Cannot open $self->{filename} $! \n"; |
| 91 |
> |
local $filehandle; |
| 92 |
> |
$filehandle=FileHandle->new(); |
| 93 |
> |
$filehandle->open("<".$self->{filename}) |
| 94 |
> |
or return 1; |
| 95 |
> |
# The buffering seems all messed up - best not to use it |
| 96 |
> |
$filehandle->setvbuf($buf, _IONBF, 3000); |
| 97 |
|
|
| 98 |
|
# Start file processing |
| 99 |
< |
while ( <$filehandle> ) { |
| 99 |
> |
while ( ($_=<$filehandle>) ) { |
| 100 |
|
$self->{linecount}++; |
| 101 |
|
$self->{currentline}=$_; |
| 102 |
|
$self->{stringpos}=0; |
| 104 |
|
$self->_checkchar($char); |
| 105 |
|
} # end char while |
| 106 |
|
} # End String while loop |
| 107 |
< |
close $filehandle; |
| 108 |
< |
} |
| 109 |
< |
|
| 110 |
< |
sub checkparam($name, $key) { |
| 111 |
< |
my $self=shift; |
| 91 |
< |
my $name=shift; |
| 92 |
< |
my $key=shift; |
| 93 |
< |
|
| 94 |
< |
if ( ! defined $self->{tagvar}{$key} ) { |
| 95 |
< |
print "Switcher: Badly formed $name tag -". |
| 96 |
< |
" undefined $key parameter\n"; |
| 97 |
< |
exit 1; |
| 98 |
< |
} |
| 107 |
> |
undef $filehandle; |
| 108 |
> |
# make sure we close the last buffer |
| 109 |
> |
$self->_calltag($self->{textcontext}, $self->{textcontext}, |
| 110 |
> |
$self->_getstore()); |
| 111 |
> |
#$self->_printstream(); |
| 112 |
|
} |
| 113 |
|
|
| 114 |
|
# |
| 118 |
|
my $self=shift; |
| 119 |
|
return $self->{linecount}; |
| 120 |
|
} |
| 121 |
+ |
|
| 122 |
+ |
# return the line the current tag was opened |
| 123 |
+ |
sub tagstartline { |
| 124 |
+ |
my $self=shift; |
| 125 |
+ |
$self->{tagstart}; |
| 126 |
+ |
} |
| 127 |
|
# --------------- Utility routines ---------------------------- |
| 128 |
|
|
| 129 |
|
# |
| 146 |
|
my $char=shift; |
| 147 |
|
my $string; |
| 148 |
|
|
| 149 |
+ |
|
| 150 |
|
# ---- In a tag |
| 151 |
|
if ( $self->{tagcontext}=~/tag/ ) { |
| 152 |
|
if ( ! $self->_quotetest($char) ) { |
| 171 |
|
my $self=shift; |
| 172 |
|
my $char; |
| 173 |
|
$char=substr($self->{currentline},$self->{stringpos}++,1); |
| 174 |
< |
# print "Debug : Fetching character $char\n"; |
| 174 |
> |
#print "Debug : Fetching character $char\n"; |
| 175 |
> |
|
| 176 |
> |
# Keep a record for any stream processes |
| 177 |
> |
$self->{streamstore}=$self->{streamstore}.$char; |
| 178 |
> |
|
| 179 |
|
return $char; |
| 180 |
|
} |
| 181 |
|
|
| 183 |
|
my $self=shift; |
| 184 |
|
my $char; |
| 185 |
|
|
| 186 |
+ |
# Keep a record of where the tag started |
| 187 |
+ |
$self->{tagstart}=$self->line(); |
| 188 |
+ |
|
| 189 |
|
# Close the last text segment |
| 190 |
+ |
$self->{streamtmp}=$self->_popstream(); |
| 191 |
|
$self->_calltag($self->{textcontext}, $self->{textcontext}, |
| 192 |
|
$self->_getstore()); |
| 193 |
|
$self->_resetstore(); |
| 215 |
|
$self->_closelabel(); |
| 216 |
|
|
| 217 |
|
# -- Call the associated tag function if appropriate |
| 218 |
< |
$tagroutine=$self->{tagname}."_".$self->{tagcontext}; |
| 219 |
< |
$self->_calltag($tagroutine, $self->{tagname}, |
| 218 |
> |
if ( defined $self->{tagname} ) { |
| 219 |
> |
$tagroutine=$self->{tagname}."_".$self->{tagcontext}; |
| 220 |
> |
$self->_calltag($tagroutine, $self->{tagname}, |
| 221 |
|
$self->{tagvar}); |
| 222 |
< |
#print "\nDebug : Closing Tag $tagroutine\n"; |
| 222 |
> |
#print "\nDebug : Closing Tag $tagroutine\n"; |
| 223 |
|
|
| 224 |
< |
# -- Now make sure the text context is set for calling routines to |
| 225 |
< |
# -- deal with text portions outside of tags |
| 226 |
< |
if ( $self->{tagcontext} eq "starttag" ) { |
| 227 |
< |
push @{$self->{textstack}} , $self->{textcontext}; |
| 228 |
< |
$self->{textcontext}=$self->{tagname}; |
| 229 |
< |
} |
| 230 |
< |
else { |
| 224 |
> |
# -- Now make sure the text context is set for calling routines to |
| 225 |
> |
# -- deal with text portions outside of tags |
| 226 |
> |
if ( ($self->{tagcontext} eq "starttag") ) { |
| 227 |
> |
if ( $self->{tagcontainer}->definescontext($self->{tagname}) ) { |
| 228 |
> |
push @{$self->{textstack}} , $self->{textcontext}; |
| 229 |
> |
$self->{textcontext}=$self->{tagname}; |
| 230 |
> |
} |
| 231 |
> |
} |
| 232 |
> |
else { |
| 233 |
|
if ( $#{$self->{textstack}} > -1 ) { |
| 234 |
< |
if ( $self->{textcontext} eq $self->{tagname} ) { |
| 235 |
< |
$self->{textcontext}=pop @{$self->{textstack}}; |
| 236 |
< |
} |
| 234 |
> |
if ( $self->{textcontext} eq $self->{tagname} ) { |
| 235 |
> |
if ( $self->{tagcontainer}->definescontext($self->{tagname}) ) { |
| 236 |
> |
# -- watch out for valid tags we ignore in this parse |
| 237 |
> |
$self->{textcontext}=pop @{$self->{textstack}}; |
| 238 |
> |
} |
| 239 |
> |
} |
| 240 |
|
else { #The tag we are closing is not the last one so |
| 241 |
|
# we keep our current context. |
| 242 |
|
$self->_removefromstack($self->{tagname},$self->{textstack}); |
| 244 |
|
|
| 245 |
|
} |
| 246 |
|
else { # more close tags than open ones |
| 247 |
+ |
if ( $self->{tagcontainer}->definescontext($self->{tagname}) ) { |
| 248 |
|
print "Warning : Unmatched </...> tag on line ". |
| 249 |
|
$self->line()."\n"; |
| 250 |
+ |
} |
| 251 |
|
} |
| 252 |
+ |
} |
| 253 |
|
} |
| 254 |
|
# Reset context back to text |
| 255 |
|
$self->{tagcontext}="text"; |
| 260 |
|
my $tagroutine=shift; |
| 261 |
|
my @args=@_; |
| 262 |
|
my $rt; |
| 263 |
+ |
my $found=0; |
| 264 |
|
|
| 265 |
|
if ( $self->{groupchecker}->status() || |
| 266 |
|
( $self->{tagcontainer}->inquiregroup($tagroutine)) ) { |
| 267 |
< |
$rt=$self->{tagcontainer}->getroutine($tagroutine); |
| 267 |
> |
($rt,$obj)=$self->{tagcontainer}->getroutine($tagroutine); |
| 268 |
|
if ( $rt ne "" ) { |
| 269 |
+ |
if ( ! defined $obj ) { |
| 270 |
|
&{$rt}( $self->{allw},@_); |
| 271 |
+ |
} |
| 272 |
+ |
else { |
| 273 |
+ |
&{$rt}( $obj,@_); |
| 274 |
+ |
} |
| 275 |
+ |
$found=1; |
| 276 |
|
} |
| 277 |
|
} |
| 278 |
+ |
|
| 279 |
+ |
# stream function |
| 280 |
+ |
if ( ! exists $self->{streamexclude}{$tagroutine} ) { |
| 281 |
+ |
$self->_printstream(); |
| 282 |
+ |
} |
| 283 |
+ |
$self->_clearstream(); |
| 284 |
+ |
} |
| 285 |
+ |
|
| 286 |
+ |
sub _clearstream { |
| 287 |
+ |
my $self=shift; |
| 288 |
+ |
$self->{streamstore}=(($self->{streamtmp} ne "")?$self->{streamtmp}:""); |
| 289 |
+ |
$self->{streamtmp}=""; |
| 290 |
+ |
} |
| 291 |
+ |
|
| 292 |
+ |
sub _popstream { |
| 293 |
+ |
my $self=shift; |
| 294 |
+ |
$self->{streamstore}=~s/(.*)(.)$/$1/; |
| 295 |
+ |
return $2; |
| 296 |
+ |
} |
| 297 |
+ |
|
| 298 |
+ |
sub _printstream { |
| 299 |
+ |
|
| 300 |
+ |
my $self=shift; |
| 301 |
+ |
|
| 302 |
+ |
# Stream output functionality |
| 303 |
+ |
if ( defined $self->{stream} ) { |
| 304 |
+ |
print {$self->{stream}} "$self->{streamstore}"; |
| 305 |
+ |
} |
| 306 |
|
} |
| 307 |
|
|
| 308 |
|
sub _removefromstack { |
| 377 |
|
sub _resetlabels { |
| 378 |
|
my $self=shift; |
| 379 |
|
undef $self->{tagvar}; |
| 380 |
+ |
undef $self->{tagname}; |
| 381 |
|
} |
| 382 |
|
|
| 383 |
|
sub _closelabel { |
| 385 |
|
|
| 386 |
|
# Do we have a label name? |
| 387 |
|
if ( $self->{lastlabel} ne "" ) { |
| 388 |
< |
$self->{tagvar}{$self->{lastlabel}}=$self->_getstore(); |
| 388 |
> |
(my $label=$self->{lastlabel})=~tr[A-Z][a-z]; |
| 389 |
> |
$self->{tagvar}{$label}=$self->_getstore(); |
| 390 |
|
$self->{lastlabel}=""; |
| 391 |
|
} |
| 392 |
|
elsif ( $self->_getstore() ne "") { |
| 393 |
< |
#Then it must be the tag name |
| 394 |
< |
($self->{tagname}=$self->_getstore())=~tr/A-Z/a-z/; |
| 393 |
> |
# Then it must be the tag name |
| 394 |
> |
if ( ! defined $self->{tagname} ) { |
| 395 |
> |
($self->{tagname}=$self->_getstore())=~tr/A-Z/a-z/; |
| 396 |
> |
} |
| 397 |
> |
else { |
| 398 |
> |
die ">Tag syntax error in $self->{tagname} on line ". |
| 399 |
> |
$self->line()." of file \n$self->{filename}"; |
| 400 |
> |
} |
| 401 |
|
} |
| 402 |
|
$self->_resetstore(); |
| 403 |
|
} |
