diff options
Diffstat (limited to 'metapost')
| -rw-r--r-- | metapost/context/base/mp-spec.mp | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/metapost/context/base/mp-spec.mp b/metapost/context/base/mp-spec.mp index 9fe3c724f..9965199f2 100644 --- a/metapost/context/base/mp-spec.mp +++ b/metapost/context/base/mp-spec.mp @@ -48,12 +48,31 @@ boolean _inline_specials_ ; _inline_specials_ := false ; string _global_specials_ ; _global_specials_ := "" ; string _local_specials_ ; _local_specials_ := "" ; +% vardef add_special_signal = % write the version number +% if (length _global_specials_>0) or (length _local_specials_ >0) : +% special ("%%MetaPostSpecials: 1.0 " & decimal _special_signal_ ) ; +% fi ; +% enddef ; +% +% After some reported problems at the \CONTEXT\ mailing list, +% Taco's came up with: + +% TH: \quotation {Ok, got it. There is a bug in mp-spec.mp (inside metafun). +% Because of a wrapping number, it fails to recognize the fact that there +% are embedded specials at all.} The corrected definition is: + vardef add_special_signal = % write the version number - if (length _global_specials_>0) or (length _local_specials_ >0) : + if (length _global_specials_ <> 0) or (length _local_specials_ <> 0) : special ("%%MetaPostSpecials: 1.0 " & decimal _special_signal_ ) ; fi ; enddef ; +% \quotation {It now tests for \quote {not equal to zero} instead of +% \quote {larger than zero}: because of all the included files, the +% string \type {_local_specials_} becomes longer than the maximum number +% \quote {length} can return, so it returns -32768 instead, and that is +% of course less than zero.} + vardef add_extra_specials = scantokens _global_specials_ ; scantokens _local_specials_ ; |