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83 lines
2.8 KiB
Plaintext
83 lines
2.8 KiB
Plaintext
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This file is public domain.
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Originally written 1995, Geoffrey Tobin.
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The author has expressed the hope that any modification will retain enough content to remain useful. He would also appreciate being acknowledged as the original author in the documentation.
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This declaration added 2008/11/14 by Clea F. Rees with the permission of Geoffrey Tobin.
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``dtl.doc''
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Wed 8 March 1995
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Geoffrey Tobin
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Correspondence between DTL and DVI files.
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-----------------------------------------
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DTL variety sequences-6, version 0.6.0
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--------------------------------------
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Note: `DTL' stands for `Device-Independent Text Language', and is an
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ASCII text representation of a DVI file.
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References for DVI file structure:
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----------------------------------
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In this distribution:
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dvi.doc
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In the TeX archives:
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CTAN: dviware/driv-standard/level-0/dvistd0.tex
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"The DVI Driver Standard, Level 0",
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by The TUG DVI Driver Standards Committee (now defunct)
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chaired by Joachim Schrod.
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Appendix A, "Device-Independent File Format",
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section A.2, "Summary of DVI commands".
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DTL Commands
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------------
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variety <variety-name> Specifies name of DTL file type.
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Naturally, `variety' has no DVI equivalent.
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The other DTL commands correspond one-to-one with DVI commands, but I
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have used briefer names (except for `special') than those used in the
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DVI standards document.
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DTL : DVI
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(text) : series of set_char commands, for printable ASCII text
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\( : literal ASCII left parenthesis in (text)
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\) : literal ASCII right parenthesis in (text)
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\\ : literal ASCII backslash in (text)
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\" : literal ASCII double quote in (text)
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\XY : set_char for character with hexadecimal code XY,
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not in parentheses, but by itself for readability
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s1, s2, s2, s3 : set, with (1,2,3,4)-byte charcodes
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sr : set_rule
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p1, p2, p2, p3 : put, with (1,2,3,4)-byte charcodes
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pr : put_rule
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nop : nop (do nothing)
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bop : bop (beginning of page)
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eop : eop (end of page)
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[ : push
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] : pop
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r1, r2, r3, r4 : right, with (1,2,3,4)-byte argument
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w0, w1, w2, w3, w4 : as in DVI
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x0, x1, x2, x3, x4 : as in DVI
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d1, d2, d3, d4 : down, with (1,2,3,4)-byte argument
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y0, y1, y2, y3, y4 : as in DVI
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z0, z1, z2, z3, z4 : as in DVI
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fn : fnt_num (set current font to font number in 0 to 63)
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f1, f2, f3, f4 : fnt (set current font to (1,2,3,4)-byte font number)
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special : xxx (special commands with (1,2,3,4)-byte string length)
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fd : fnt_def (assign a number to a named font)
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pre : preamble
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post : post (begin postamble)
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post_post : post_post (end postamble)
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opcode : undefined DVI command (250 to 255)
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---------------
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EOF ``dtl.doc''
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---------------
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