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diff --git a/Master/texmf-dist/doc/generic/tex4ht/mn34.html b/Master/texmf-dist/doc/generic/tex4ht/mn34.html index 5b8f30e6f91..90ea257ee70 100644 --- a/Master/texmf-dist/doc/generic/tex4ht/mn34.html +++ b/Master/texmf-dist/doc/generic/tex4ht/mn34.html @@ -1,50 +1,139 @@ <?xml version="1.0" encoding="iso-8859-1" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" - "xhtml1-transitional.dtd"> + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <!--http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd--> <html xmlns="http://www.w3.org/1999/xhtml" > -<head><title>bookkeeping file</title> +<head><title>Modify</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> -<meta name="generator" content="TeX4ht (http://www.cis.ohio-state.edu/~gurari/TeX4ht/mn.html)" /> -<meta name="originator" content="TeX4ht (http://www.cis.ohio-state.edu/~gurari/TeX4ht/mn.html)" /> +<meta name="generator" content="TeX4ht (https://tug.org/tex4ht/)" /> +<meta name="originator" content="TeX4ht (https://tug.org/tex4ht/)" /> <!-- xhtml,th4,index --> <meta name="src" content="mn.tex" /> -<meta name="date" content="2004-02-11 18:07:00" /> <link rel="stylesheet" type="text/css" href="mn.css" /> </head><body > <a - href="mn33.html#mn34.html" >exit</a> <h3 class="SubSectionHead"><a - name="QQ1-34-43"></a>Placement of the Bookkeeping File</h3> + href="mn31.html#mn34.html" >exit Modify</a> + <h3 class="SubSectionHead"><a + name="QQ1-34-73"></a>The Composition of tex4ht.env</h3> <a - name="index34-43001"></a> <a - name="index34-43002"></a> <a - name="index34-43003"></a> <a - name="index34-43004"></a><a - name="TEX4HTWR"></a>To cut down on the time invested to locate files, the <span class="cmtt-10">tex4ht.c </span>program maintains a bookkeeping file where it -records the addresses of the files it finds. Whenever the program needs to locate a file, it first searches the address in -the bookkeeping file. If it doesn’t find the address there, the program embarks on a search throughout the physical -directories of its platform. -<!--l. 5565--><p class="indent"> The program places the bookkeeping file at the first applicable location of the following list. -</p><!--l. 5568--><p class="indent"> -</p><ol type="1" > -<li>The pointer specified by an optional ‘<span class="cmtt-10">-l</span>’ switch provided to the invocation of the <span class="cmtt-10">tex4ht </span>program. -</li> -<li>A file named <span class="cmtt-10">tex4ht.fls </span>in the directory specified by an optional environment variable named <span class="cmtt-10">TEX4HTWR</span>. -</li> -<li>The location specified by an optional ‘<span class="cmtt-10">l</span>’ record provided in the environment file. </li> -<li>A file named <span class="cmtt-10">tex4ht.fls </span>in the work directory. </li></ol> - A given address may start with the character ‘<span class="cmtt-10">~</span>’ or the character pair ‘<span class="cmtt-10">~~</span>’. The single character ‘<span class="cmtt-10">~</span>’ is -interpreted to be the directory address of the root, provided in an environment variable named <span class="cmtt-10">HOME</span>. The -character pair ‘<span class="cmtt-10">~~</span>’ is interpreted to be a directory address provided in an environment variable named -<span class="cmtt-10">TEX4HTWR</span>. The address stored in the latter environment variable may also start with a single character -‘<span class="cmtt-10">~</span>’. -<!--l. 5595--><p class="indent"> The bookkeeping file must have writable access mode, and the directory which contains the file should have a -compatible access mode. -</p><!--l. 5599--><p class="indent"> The bookkeeping file is a dynamically constructed variant of the ls-R file of kpathsea. TeX4ht -ignores its own bookkeeping mechanism, if the program <span class="cmtt-10">tex4ht.c </span>is compiled with a raised <span class="cmtt-10">-DKPATHSEA</span> -switch. + name="index34-73001"></a>TeX4ht consults this file for system-dependent information. The file consists of a sequence of directives, where +each directive occupies a line and is identified with a distinguished character code in the first column. The following +are the possible character codes and their meaning. +<dl > + <dt>b</dt><dd> +This character identifies for <span class="cmtt-10">tex4ht </span>a comment to be placed in the ‘<span class="cmtt-10">.lg</span>’ file, before the <a + href="mn38.html#bsc" name="bsc-1">scripts</a> for creating pictures +for symbols. + </dd><dt>g</dt><dd> +<a + name="index34-73002"></a>This character identifies the extension tex4ht should associate to names of the files of pictures the +postprocessor requests (for instance, bitmap files of glyphs.). The default corresponds to a setting of the form +‘<span class="cmtt-10">g.png</span>’. +<!--l. 8142--><p class="indent" > An extension name can also be encoded into tex4ht during compilation time through the variable +<a + href="mn37.html#x-LGTYP" name="LGTYP">LGTYP</a>. +</p><!--l. 8146--><p class="indent" > Alternatively, an extension can be provided in the command line of tex4ht, in which case the character code +should be present and immediately preceded by a ‘<span class="cmtt-10">-</span>’ character. +</p> + </dd><dt>i</dt><dd> +This character identifies to <span class="cmtt-10">tex4ht </span>a directory <a + href="mn40.html#ch-i" name="ch.i">where</a> the hypertext font (.htf) files of <span class="cmtt-10">tex4ht </span>are +stored. + </dd><dt>l</dt><dd> +<a + name="index34-73003"></a>This character identifies a <a + href="mn35.html" name="mn35.html" >bookkeeping file</a> where <span class="cmtt-10">tex4ht </span>can record information about paths to files it uses. + </dd><dt>s</dt><dd> +This character identifies to <span class="cmtt-10">tex4ht </span>a <a + href="mn38.html#sc" name="sc-1">command</a> for requesting in the <span class="cmtt-10">lg </span>file the translation of dvi pictures to +bitmaps. When needed, a sequence of such commands can be placed in consecutive lines to form a block of +commands for handling the translation. + </dd><dt>t</dt><dd> +<a + name="index34-74005"></a>This character identifies to <span class="cmtt-10">tex4ht </span>the directory <a + href="mn36.html" name="mn36.html" >where</a> the font metric (.tfm) files of TeX are stored. + </dd><dt>A</dt><dd> +This character identifies to <span class="cmtt-10">t4ht </span>a <a + href="mn-upgrade.html#accscript">script</a> for changing access mode of files. + </dd><dt>C</dt><dd> +This character identifies a <a + href="mn-upgrade.html#mvscript">script</a> for satisfying requests made in the <span class="cmtt-10">lg </span>file to copy files between directories. + </dd><dt>E</dt><dd> +This character identifies a <a + href="mn-upgrade.html#mvscript">script</a> for satisfying requests made in the <span class="cmtt-10">lg </span>file to get substitutions for empty +pictures. + </dd><dt>F</dt><dd> +This character identifies to <span class="cmtt-10">t4ht </span>a <a + href="mn-upgrade.html#dv2png">script</a> for translating into other formats characters from dvi files. +<!--l. 8351--><p class="indent" > A ‘F.ext’ record marks a conditional F-subscript. It states that the following F-records will apply only to +pictures whose extension names are ‘ext’. +</p><!--l. 8355--><p class="indent" > A ‘F.’ record marks a default F-subscript. It applies to pictures whose extension names do not get dedicated +F-subscripts. +</p><!--l. 8358--><p class="indent" > The ‘F.ext’ and ‘F.’ records are not needed, in case all the pictures are to be processed by a single set of +F-records. +</p><!--l. 8361--><p class="noindent" ><span class="cmbx-10">Example</span>: +</p><div class="Verbatim"><span class="cmtt-10">F.gif</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">F-gif-script</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">F.png</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">F-png-script</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">F.</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">F-script</span><span class="cmtt-10"> </span> +<br /></div> + </dd><dt>G</dt><dd> +This character identifies to <span class="cmtt-10">t4ht </span>a <a + href="mn-upgrade.html#dv2png">script</a> for translating general dvi figures into other formats. +<!--l. 8380--><p class="indent" > A ‘G.ext’ record marks a conditional G-subscript. It states that the following G-records will apply only to +pictures whose extension names are ‘ext’. +</p><!--l. 8384--><p class="indent" > A ‘G.’ record marks a default G-subscript. It applies to pictures whose extension names do not get dedicated +G-subscripts. +</p><!--l. 8387--><p class="indent" > The ‘G.ext’ and ‘G.’ records are not needed, in case all the pictures are to be processed by a single set of +G-records. +</p><!--l. 8390--><p class="noindent" ><span class="cmbx-10">Example</span>: +</p><div class="Verbatim"><span class="cmtt-10">G.gif</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">G-gif-script</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">G.png</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">G-png-script</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">G.</span><span class="cmtt-10"> </span> +<br /><span class="cmtt-10">G-script</span><span class="cmtt-10"> </span> +<br /></div> + </dd><dt>M</dt><dd> +This character identifies a <a + href="mn-upgrade.html#mvscript">script</a> for satisfying requests made in the <span class="cmtt-10">lg </span>file to move files between directories. + </dd><dt>S</dt><dd> +This character specifies what security measures <span class="cmtt-10">t4ht </span>should take when invoking other utilities. In the absence of +this directive, all the calls to system services are ignored. On the other hand, a directive of the form ‘<span class="cmtt-10">S*</span>’ allows all +system calls. A selective access to system calls can be obtained with <span class="cmtt-10">S </span>directives, which specify the prefixes of +command names that should be allowed to go through. +<!--l. 8417--><p class="indent" > The <span class="cmtt-10">S </span>directives can be fed as switches to the command lines <span class="cmtt-10">t4ht</span>. +</p> + </dd><dt>P</dt><dd> +A variant of he <span class="cmtt-10">S </span>switch for <span class="cmtt-10">tex4ht</span>. Rarely useful. + + </dd><dt>X</dt><dd> +This character identifies to <span class="cmtt-10">t4ht </span>a script for postprocessing the files which <span class="cmtt-10">tex4ht </span>outputs. The file names are +represented by ‘<span class="cmtt-10">%%1</span>’, and their extensions by ‘<span class="cmtt-10">%%2</span>’. Such scripts, for instance, may invoke validators to check the +correctness of the files against given DTD’s and request XSL transformations. +<!--l. 8430--><p class="indent" > The command line of <span class="cmtt-10">t4ht </span>may include a flag ‘<span class="cmtt-10">-X</span>’ whose content is represented by ‘<span class="cmtt-10">%%3</span>’ in the +script. +</p><!--l. 8434--><p class="indent" > Example: <span class="cmtt-10">Xmake -f mymake name=%%1 ext=%%2 %%3</span> +</p> + </dd><dt><span class="cmbx-10">. </span>(dot)</dt><dd> +A variant of the X script applied to files whose extension names are provided after the dot. The file names are +represented by ‘<span class="cmtt-10">%%1</span>’, and the jobnames by ‘<span class="cmtt-10">%%0</span>’. +<!--l. 8440--><p class="indent" > Example: <span class="cmtt-10">.xml echo "name=%%1.xml"</span> +</p> + </dd><dt><span class="cmtt-10"><</span></dt><dd> +Tagged script segments <span class="cmtt-10"><tag>...</tag> </span>are scanned only if their names are specified within <span class="cmtt-10">-ctag </span>switches of +<span class="cmtt-10">tex4ht.c </span>and <span class="cmtt-10">t4ht.c</span>. When such switches are not supplied, a the switch <span class="cmtt-10">-cdefault </span>is implicitly +assumed. + </dd></dl> +<!--l. 8450--><p class="indent" > Lines starting with other characters are treated as comments, and empty lines may be treated as file +terminators by <span class="cmtt-10">tex4ht </span>and <span class="cmtt-10">t4ht</span>. +</p><!--l. 8456--><p class="noindent" ><span class="cmbx-10">Examples: </span><a + href="tex4ht-env-unix.txt" >Unix-oriented</a>, <a + href="tex4ht-env-win32.txt" >MS-oriented</a> </p> |