diff options
Diffstat (limited to 'metapost')
| -rw-r--r-- | metapost/context/base/mp-tool.mp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/metapost/context/base/mp-tool.mp b/metapost/context/base/mp-tool.mp index 1f299807a..5c7353e38 100644 --- a/metapost/context/base/mp-tool.mp +++ b/metapost/context/base/mp-tool.mp @@ -21,6 +21,41 @@ if known context_tool : endinput ; fi ; boolean context_tool ; context_tool := true ; +%D New, version number testing: +%D +%D \starttyping +%D fill fullcircle scaled 2cm withcolor if mpversiongt("0.6") : red else : green fi ; +%D fill fullcircle scaled 1cm withcolor if mpversionlt(0.6) : blue else : white fi ; +%D \stoptyping + +if not known mpversion : string mpversion ; mpversion := "0.641" ; fi ; + +% vardef mpversiongt(expr s) = +% scantokens (mpversion & " > " & if numeric s : decimal s else : s fi) +% enddef ; +% vardef mpversionlt(expr s) = +% scantokens (mpversion & " < " & if numeric s : decimal s else : s fi) +% enddef ; +% vardef mpversioneq(expr s) = +% scantokens (mpversion & " = " & if numeric s : decimal s else : s fi) +% enddef ; + +%D More interesting: +%D +%D \starttyping +%D fill fullcircle scaled 4cm withcolor if mpversiongt("0.6") : red else : green fi ; +%D fill fullcircle scaled 2cm withcolor if mpversionlt(0.6) : blue else : white fi ; +%D fill fullcircle scaled 1cm withcolor if mpversioncmp(0.6,">=") : yellow else : black fi ; +%D \stoptyping + +vardef mpversioncmp(expr s, c) = + scantokens (mpversion & c & if numeric s : decimal s else : s fi) +enddef ; + +vardef mpversionlt (expr s) = mpversioncmp(s, "<") enddef ; +vardef mpversioneq (expr s) = mpversioncmp(s, "=") enddef ; +vardef mpversiongt (expr s) = mpversioncmp(s, ">") enddef ; + %D We always want \EPS\ conforming output, so we say: prologues := 2 ; % 1 = troff, 2 = tex |