199 lines
15 KiB
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199 lines
15 KiB
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<!-- This manual documents Guile version 3.0.10.
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Copyright (C) 1996-1997, 2000-2005, 2009-2023 Free Software Foundation,
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Inc.
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Copyright (C) 2021 Maxime Devos
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Copyright (C) 2024 Tomas Volf
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Permission is granted to copy, distribute and/or modify this document
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any later version published by the Free Software Foundation; with no
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Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
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copy of the license is included in the section entitled "GNU Free
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<title>Standard Character Sets (Guile Reference Manual)</title>
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Character-Sets.html" rel="up" title="Character Sets">
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<body lang="en">
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<div class="subsubsection-level-extent" id="Standard-Character-Sets">
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<div class="nav-panel">
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<p>
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Previous: <a href="Character_002dSet-Algebra.html" accesskey="p" rel="prev">Character-Set Algebra</a>, Up: <a href="Character-Sets.html" accesskey="u" rel="up">Character Sets</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<h4 class="subsubsection" id="Standard-Character-Sets-1"><span>6.6.4.6 Standard Character Sets<a class="copiable-link" href="#Standard-Character-Sets-1"> ¶</a></span></h4>
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<p>In order to make the use of the character set data type and procedures
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useful, several predefined character set variables exist.
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</p>
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<a class="index-entry-id" id="index-codeset"></a>
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<a class="index-entry-id" id="index-charset"></a>
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<a class="index-entry-id" id="index-locale"></a>
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<p>These character sets are locale independent and are not recomputed
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upon a <code class="code">setlocale</code> call. They contain characters from the whole
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range of Unicode code points. For instance, <code class="code">char-set:letter</code>
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contains about 100,000 characters.
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</p>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003alower_002dcase"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:lower-case</strong><a class="copiable-link" href="#index-char_002dset_003alower_002dcase"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005flower_005fcase"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_lower_case</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005flower_005fcase"> ¶</a></span></dt>
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<dd><p>All lower-case characters.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aupper_002dcase"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:upper-case</strong><a class="copiable-link" href="#index-char_002dset_003aupper_002dcase"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fupper_005fcase"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_upper_case</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fupper_005fcase"> ¶</a></span></dt>
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<dd><p>All upper-case characters.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003atitle_002dcase"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:title-case</strong><a class="copiable-link" href="#index-char_002dset_003atitle_002dcase"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005ftitle_005fcase"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_title_case</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005ftitle_005fcase"> ¶</a></span></dt>
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<dd><p>All single characters that function as if they were an upper-case
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letter followed by a lower-case letter.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aletter"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:letter</strong><a class="copiable-link" href="#index-char_002dset_003aletter"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fletter"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_letter</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fletter"> ¶</a></span></dt>
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<dd><p>All letters. This includes <code class="code">char-set:lower-case</code>,
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<code class="code">char-set:upper-case</code>, <code class="code">char-set:title-case</code>, and many
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letters that have no case at all. For example, Chinese and Japanese
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characters typically have no concept of case.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003adigit"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:digit</strong><a class="copiable-link" href="#index-char_002dset_003adigit"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fdigit"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_digit</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fdigit"> ¶</a></span></dt>
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<dd><p>All digits.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aletter_002bdigit"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:letter+digit</strong><a class="copiable-link" href="#index-char_002dset_003aletter_002bdigit"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fletter_005fand_005fdigit"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_letter_and_digit</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fletter_005fand_005fdigit"> ¶</a></span></dt>
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<dd><p>The union of <code class="code">char-set:letter</code> and <code class="code">char-set:digit</code>.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003agraphic"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:graphic</strong><a class="copiable-link" href="#index-char_002dset_003agraphic"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fgraphic"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_graphic</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fgraphic"> ¶</a></span></dt>
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<dd><p>All characters which would put ink on the paper.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aprinting"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:printing</strong><a class="copiable-link" href="#index-char_002dset_003aprinting"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fprinting"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_printing</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fprinting"> ¶</a></span></dt>
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<dd><p>The union of <code class="code">char-set:graphic</code> and <code class="code">char-set:whitespace</code>.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003awhitespace"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:whitespace</strong><a class="copiable-link" href="#index-char_002dset_003awhitespace"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fwhitespace"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_whitespace</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fwhitespace"> ¶</a></span></dt>
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<dd><p>All whitespace characters.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003ablank"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:blank</strong><a class="copiable-link" href="#index-char_002dset_003ablank"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fblank"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_blank</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fblank"> ¶</a></span></dt>
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<dd><p>All horizontal whitespace characters, which notably includes
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<code class="code">#\space</code> and <code class="code">#\tab</code>.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aiso_002dcontrol"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:iso-control</strong><a class="copiable-link" href="#index-char_002dset_003aiso_002dcontrol"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fiso_005fcontrol"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_iso_control</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fiso_005fcontrol"> ¶</a></span></dt>
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<dd><p>The ISO control characters are the C0 control characters (U+0000 to
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U+001F), delete (U+007F), and the C1 control characters (U+0080 to
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U+009F).
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003apunctuation"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:punctuation</strong><a class="copiable-link" href="#index-char_002dset_003apunctuation"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fpunctuation"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_punctuation</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fpunctuation"> ¶</a></span></dt>
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<dd><p>All punctuation characters, such as the characters
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<code class="code">!"#%&'()*,-./:;?@[\\]_{}</code>
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003asymbol"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:symbol</strong><a class="copiable-link" href="#index-char_002dset_003asymbol"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fsymbol"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_symbol</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fsymbol"> ¶</a></span></dt>
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<dd><p>All symbol characters, such as the characters <code class="code">$+<=>^`|~</code>.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003ahex_002ddigit"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:hex-digit</strong><a class="copiable-link" href="#index-char_002dset_003ahex_002ddigit"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fhex_005fdigit"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_hex_digit</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fhex_005fdigit"> ¶</a></span></dt>
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<dd><p>The hexadecimal digits <code class="code">0123456789abcdefABCDEF</code>.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aascii"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:ascii</strong><a class="copiable-link" href="#index-char_002dset_003aascii"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fascii"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_ascii</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fascii"> ¶</a></span></dt>
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<dd><p>All ASCII characters.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003aempty"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:empty</strong><a class="copiable-link" href="#index-char_002dset_003aempty"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fempty"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_empty</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fempty"> ¶</a></span></dt>
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<dd><p>The empty character set.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003adesignated"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:designated</strong><a class="copiable-link" href="#index-char_002dset_003adesignated"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005fdesignated"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_designated</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005fdesignated"> ¶</a></span></dt>
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<dd><p>This character set contains all designated code points. This includes
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all the code points to which Unicode has assigned a character or other
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meaning.
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</p></dd></dl>
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<dl class="first-defvr">
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<dt class="defvr" id="index-char_002dset_003afull"><span class="category-def">Scheme Variable: </span><span><strong class="def-name">char-set:full</strong><a class="copiable-link" href="#index-char_002dset_003afull"> ¶</a></span></dt>
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<dt class="defvrx def-cmd-defvr" id="index-scm_005fchar_005fset_005ffull"><span class="category-def">C Variable: </span><span><strong class="def-name">scm_char_set_full</strong><a class="copiable-link" href="#index-scm_005fchar_005fset_005ffull"> ¶</a></span></dt>
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<dd><p>This character set contains all possible code points. This includes
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both designated and reserved code points.
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</p></dd></dl>
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</div>
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<hr>
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<div class="nav-panel">
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<p>
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Previous: <a href="Character_002dSet-Algebra.html">Character-Set Algebra</a>, Up: <a href="Character-Sets.html">Character Sets</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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</html>
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