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Diffstat (limited to 'Master/texmf-dist/doc/latex/hyperref/README')
| -rw-r--r-- | Master/texmf-dist/doc/latex/hyperref/README | 79 |
1 files changed, 78 insertions, 1 deletions
diff --git a/Master/texmf-dist/doc/latex/hyperref/README b/Master/texmf-dist/doc/latex/hyperref/README index b1d11d74bf1..095440a6707 100644 --- a/Master/texmf-dist/doc/latex/hyperref/README +++ b/Master/texmf-dist/doc/latex/hyperref/README @@ -1,4 +1,4 @@ -README for hyperref bundle, 2008/08/14 +README for hyperref bundle, 2008/09/11 TABLE OF CONTENTS @@ -176,6 +176,82 @@ other packages: 5 NEW FEATURES ============== +\unichar +-------- + If a Unicode character is not supported by puenc.def, it can + be given by using \unichar. It's name and syntax is inherited + from package `ucs'. However it is defined independently for + use in hyperref's \pdfstringdef (that converts arbitrary + TeX code to PDF strings or tries to do this). + + Macro \unichar takes a TeX number as argument, + examples for U+263A (WHITE SMILING FACE): + \unichar{"263A}% hexadecimal notation + \unichar{9786}% decimal notation + `"' must not be a babel shorthand character or otherwise + active. Otherwise prefix it with \string: + \unichar{\string"263A}% converts `"' to `"' with catcode 12 (other) + Users of (n)german packages or babel options may use \dq instead: + \unichar{\dq 263A}% \dq is double quote with catcode 12 (other) + +\ifpdfstringunicode +------------------- + Some features of the PDF specification needs PDF strings. + Examples are bookmarks or the entries in the information dictionary. + The PDF specification allows two encodings `PDFDocEncoding' + (8-bit encoding) and `Unicode' (UTF-16). The user can help + using \texorpdfstring to replace complicate TeX constructs + by a representation for the PDF string. However \texorpdfstring + does not distinguish the two encodings. This gap closes + \ifpdfstringunicode. It is only allowed in the second argument + of \texorpdfstring and takes two arguments, the first allows + the full range of Unicode. The second is limited to the + characters available in PDFDocEncoding. + + As example we take a macro definition for the Vietnamese + name of Han The Thanh. Correctly written it needs some + accented characters, one character even with a double accent. + Class `tugboat.cls' defines a macro for the typesetted name: + \def\Thanh{% + H\`an~% + Th\^e\llap{\raise 0.5ex\hbox{\'{}}}% + ~Th\`anh% + } + It's not entirely correct, the second accent over the `e' is not + an acute, but a hook. However standard LaTeX does not provide + such an accent. + Now we can extend the defintion to support hyperref. + The first and the last word are already supported automatically. + Characters with two or more accents are a difficult business in + LaTeX, because the NFSS2 macros of the LaTeX kernel do not support + more than one accent. Therefore also puenc.def misses support for + them. But we can provide it using \unichar. The character + in question is: + % U+1EC3 LATIN SMALL LETTER E WITH CIRCUMFLEX AND HOOK ABOVE + Thus we can put this together: + \def\Thanh{% + H\`an~% + \texorpdfstring{Th\^e\llap{\raise 0.5ex\hbox{\'{}}}}% + {\ifpdfstringunicode{Th\unichar{"1EC3}}{Th\^e}}% + ~Th\`anh% + } + For PDFDocEncoding (PD1) the variant above has dropped the + second accent. Alternatively we could provide a representation + without accents instead of wrong accents: + \def\Thanh{% + \texorpdfstring{% + H\`an~% + Th\^e\llap{\raise 0.5ex\hbox{\'{}}}}% + ~Th\`anh% + }{% + \ifpdfstringunicode{% + H\`an Th\unichar{"1EC3} Th\`anh% + }{% + Han The Thanh% + }% + }% + } + Customizing index style file with \nohyperpage ---------------------------------------------- Since version 2008/08/14 v6.78f. @@ -1268,6 +1344,7 @@ Responsible for the additions to PU encoding for Arabi is TeX Live -------- +* TL 2008: 2008/08/14 v6.78f (at time of first release) * TL 2007: 2007/02/07 v6.75r * TL 2005: 2003/11/30 v6.74m * TL 2004: 2003/11/30 v6.74m |