123 lines
8.9 KiB
HTML
123 lines
8.9 KiB
HTML
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<!DOCTYPE html>
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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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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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copy of the license is included in the section entitled "GNU Free
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Documentation License." -->
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<title>Character Case Mapping (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="Internationalization.html" rel="up" title="Internationalization">
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<link href="Number-Input-and-Output.html" rel="next" title="Number Input and Output">
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<link href="Text-Collation.html" rel="prev" title="Text Collation">
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</head>
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<body lang="en">
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<div class="subsection-level-extent" id="Character-Case-Mapping">
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<div class="nav-panel">
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<p>
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Next: <a href="Number-Input-and-Output.html" accesskey="n" rel="next">Number Input and Output</a>, Previous: <a href="Text-Collation.html" accesskey="p" rel="prev">Text Collation</a>, Up: <a href="Internationalization.html" accesskey="u" rel="up">Support for Internationalization</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="subsection" id="Character-Case-Mapping-1"><span>6.25.3 Character Case Mapping<a class="copiable-link" href="#Character-Case-Mapping-1"> ¶</a></span></h4>
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<p>The procedures below provide support for “character case mapping”,
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i.e., to convert characters or strings to their upper-case or
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lower-case equivalent. Note that SRFI-13 provides procedures that
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look similar (see <a class="pxref" href="Alphabetic-Case-Mapping.html">Alphabetic Case Mapping</a>). However, the SRFI-13
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procedures are locale-independent. Therefore, they do not take into
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account specificities of the customs in use in a particular language
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or region of the world. For instance, while most languages using the
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Latin alphabet map lower-case letter “i” to upper-case letter “I”,
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Turkish maps lower-case “i” to “Latin capital letter I with dot
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above”. The following procedures allow programmers to provide
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idiomatic character mapping.
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</p>
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<dl class="first-deffn">
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<dt class="deffn" id="index-char_002dlocale_002ddowncase"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">char-locale-downcase</strong> <var class="def-var-arguments">chr [locale]</var><a class="copiable-link" href="#index-char_002dlocale_002ddowncase"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-scm_005fchar_005flocale_005fupcase"><span class="category-def">C Function: </span><span><strong class="def-name">scm_char_locale_upcase</strong> <var class="def-var-arguments">(chr, locale)</var><a class="copiable-link" href="#index-scm_005fchar_005flocale_005fupcase"> ¶</a></span></dt>
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<dd><p>Return the lowercase character that corresponds to <var class="var">chr</var> according
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to either <var class="var">locale</var> or the current locale.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-char_002dlocale_002dupcase"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">char-locale-upcase</strong> <var class="def-var-arguments">chr [locale]</var><a class="copiable-link" href="#index-char_002dlocale_002dupcase"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-scm_005fchar_005flocale_005fdowncase"><span class="category-def">C Function: </span><span><strong class="def-name">scm_char_locale_downcase</strong> <var class="def-var-arguments">(chr, locale)</var><a class="copiable-link" href="#index-scm_005fchar_005flocale_005fdowncase"> ¶</a></span></dt>
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<dd><p>Return the uppercase character that corresponds to <var class="var">chr</var> according
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to either <var class="var">locale</var> or the current locale.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-char_002dlocale_002dtitlecase"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">char-locale-titlecase</strong> <var class="def-var-arguments">chr [locale]</var><a class="copiable-link" href="#index-char_002dlocale_002dtitlecase"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-scm_005fchar_005flocale_005ftitlecase"><span class="category-def">C Function: </span><span><strong class="def-name">scm_char_locale_titlecase</strong> <var class="def-var-arguments">(chr, locale)</var><a class="copiable-link" href="#index-scm_005fchar_005flocale_005ftitlecase"> ¶</a></span></dt>
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<dd><p>Return the titlecase character that corresponds to <var class="var">chr</var> according
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to either <var class="var">locale</var> or the current locale.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-string_002dlocale_002dupcase"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">string-locale-upcase</strong> <var class="def-var-arguments">str [locale]</var><a class="copiable-link" href="#index-string_002dlocale_002dupcase"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-scm_005fstring_005flocale_005fupcase"><span class="category-def">C Function: </span><span><strong class="def-name">scm_string_locale_upcase</strong> <var class="def-var-arguments">(str, locale)</var><a class="copiable-link" href="#index-scm_005fstring_005flocale_005fupcase"> ¶</a></span></dt>
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<dd><p>Return a new string that is the uppercase version of <var class="var">str</var>
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according to either <var class="var">locale</var> or the current locale.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-string_002dlocale_002ddowncase"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">string-locale-downcase</strong> <var class="def-var-arguments">str [locale]</var><a class="copiable-link" href="#index-string_002dlocale_002ddowncase"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-scm_005fstring_005flocale_005fdowncase"><span class="category-def">C Function: </span><span><strong class="def-name">scm_string_locale_downcase</strong> <var class="def-var-arguments">(str, locale)</var><a class="copiable-link" href="#index-scm_005fstring_005flocale_005fdowncase"> ¶</a></span></dt>
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<dd><p>Return a new string that is the down-case version of <var class="var">str</var>
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according to either <var class="var">locale</var> or the current locale.
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</p></dd></dl>
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<dl class="first-deffn">
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<dt class="deffn" id="index-string_002dlocale_002dtitlecase"><span class="category-def">Scheme Procedure: </span><span><strong class="def-name">string-locale-titlecase</strong> <var class="def-var-arguments">str [locale]</var><a class="copiable-link" href="#index-string_002dlocale_002dtitlecase"> ¶</a></span></dt>
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<dt class="deffnx def-cmd-deffn" id="index-scm_005fstring_005flocale_005ftitlecase"><span class="category-def">C Function: </span><span><strong class="def-name">scm_string_locale_titlecase</strong> <var class="def-var-arguments">(str, locale)</var><a class="copiable-link" href="#index-scm_005fstring_005flocale_005ftitlecase"> ¶</a></span></dt>
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<dd><p>Return a new string that is the titlecase version of <var class="var">str</var>
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according to either <var class="var">locale</var> or the current locale.
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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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Next: <a href="Number-Input-and-Output.html">Number Input and Output</a>, Previous: <a href="Text-Collation.html">Text Collation</a>, Up: <a href="Internationalization.html">Support for Internationalization</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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</body>
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</html>
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