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| author | Andreas Rottmann <a.rottmann@gmx.at> | 2009-09-14 12:32:44 +0200 |
|---|---|---|
| committer | Andreas Rottmann <a.rottmann@gmx.at> | 2009-09-14 12:32:44 +0200 |
| commit | fa095a4504cbe668e4244547e2c141597bea4ecf (patch) | |
| tree | 06135820a286ffec47804e75fbf8a147e92acd2e /doc/libunistring_9.html | |
Imported Upstream version 0.9.1upstream/0.9.1
Diffstat (limited to 'doc/libunistring_9.html')
| -rw-r--r-- | doc/libunistring_9.html | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/doc/libunistring_9.html b/doc/libunistring_9.html new file mode 100644 index 00000000..0586e0f2 --- /dev/null +++ b/doc/libunistring_9.html @@ -0,0 +1,141 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd"> +<html> +<!-- Created on July, 1 2009 by texi2html 1.78a --> +<!-- +Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author) + Karl Berry <karl@freefriends.org> + Olaf Bachmann <obachman@mathematik.uni-kl.de> + and many others. +Maintained by: Many creative people. +Send bugs and suggestions to <texi2html-bug@nongnu.org> + +--> +<head> +<title>GNU libunistring: 9. Display width <uniwidth.h></title> + +<meta name="description" content="GNU libunistring: 9. Display width <uniwidth.h>"> +<meta name="keywords" content="GNU libunistring: 9. Display width <uniwidth.h>"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="texi2html 1.78a"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +pre.display {font-family: serif} +pre.format {font-family: serif} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: serif; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: serif; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.roman {font-family:serif; font-weight:normal;} +span.sansserif {font-family:sans-serif; font-weight:normal;} +ul.toc {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> + +<table cellpadding="1" cellspacing="1" border="0"> +<tr><td valign="middle" align="left">[<a href="libunistring_8.html#SEC20" title="Beginning of this chapter or previous chapter"> << </a>]</td> +<td valign="middle" align="left">[<a href="libunistring_10.html#SEC38" title="Next chapter"> >> </a>]</td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Top" title="Cover (top) of document">Top</a>]</td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Contents" title="Table of contents">Contents</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_18.html#SEC71" title="Index">Index</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_abt.html#SEC_About" title="About (help)"> ? </a>]</td> +</tr></table> + +<hr size="2"> +<a name="uniwidth_002eh"></a> +<a name="SEC37"></a> +<h1 class="chapter"> <a href="libunistring.html#TOC37">9. Display width <code><uniwidth.h></code></a> </h1> + +<p>This include file declares functions that return the display width, measured +in columns, of characters or strings, when output to a device that uses +non-proportional fonts. +</p> +<a name="IDX604"></a> +<p>Note that for some rarely used characters the actual fonts or terminal +emulators can use a different width. There is no mechanism for communicating +the display width of characters across a Unix pseudo-terminal (tty). Also, +there are scripts with complex rendering, like the Indic scripts. For these +scripts, there is no such concept as non-proportional fonts. Therefore +the results of these functions usually work fine on most scripts and on +most characters but can fail to represent the actual display width. +</p> +<p>These functions are locale dependent. The <var>encoding</var> argument identifies +the encoding (e.g. <code>"ISO-8859-2"</code> for Polish). +</p> +<a name="IDX605"></a> +<a name="IDX606"></a> +<a name="IDX607"></a> +<dl> +<dt><u>Function:</u> int <b>uc_width</b><i> (ucs4_t <var>uc</var>, const char *<var>encoding</var>)</i> +<a name="IDX608"></a> +</dt> +<dd><p>Determines and returns the number of column positions required for <var>uc</var>. +Returns -1 if <var>uc</var> is a control character that has an influence on the +column position when output. +</p></dd></dl> + +<dl> +<dt><u>Function:</u> int <b>u8_width</b><i> (const uint8_t *<var>s</var>, size_t <var>n</var>, const char *<var>encoding</var>)</i> +<a name="IDX609"></a> +</dt> +<dt><u>Function:</u> int <b>u16_width</b><i> (const uint16_t *<var>s</var>, size_t <var>n</var>, const char *<var>encoding</var>)</i> +<a name="IDX610"></a> +</dt> +<dt><u>Function:</u> int <b>u32_width</b><i> (const uint32_t *<var>s</var>, size_t <var>n</var>, const char *<var>encoding</var>)</i> +<a name="IDX611"></a> +</dt> +<dd><p>Determines and returns the number of column positions required for first +<var>n</var> units (or fewer if <var>s</var> ends before this) in <var>s</var>. This +function ignores control characters in the string. +</p></dd></dl> + +<dl> +<dt><u>Function:</u> int <b>u8_strwidth</b><i> (const uint8_t *<var>s</var>, const char *<var>encoding</var>)</i> +<a name="IDX612"></a> +</dt> +<dt><u>Function:</u> int <b>u16_strwidth</b><i> (const uint16_t *<var>s</var>, const char *<var>encoding</var>)</i> +<a name="IDX613"></a> +</dt> +<dt><u>Function:</u> int <b>u32_strwidth</b><i> (const uint32_t *<var>s</var>, const char *<var>encoding</var>)</i> +<a name="IDX614"></a> +</dt> +<dd><p>Determines and returns the number of column positions required for <var>s</var>. +This function ignores control characters in the string. +</p></dd></dl> +<hr size="6"> +<table cellpadding="1" cellspacing="1" border="0"> +<tr><td valign="middle" align="left">[<a href="libunistring_8.html#SEC20" title="Beginning of this chapter or previous chapter"> << </a>]</td> +<td valign="middle" align="left">[<a href="libunistring_10.html#SEC38" title="Next chapter"> >> </a>]</td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left"> </td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Top" title="Cover (top) of document">Top</a>]</td> +<td valign="middle" align="left">[<a href="libunistring.html#SEC_Contents" title="Table of contents">Contents</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_18.html#SEC71" title="Index">Index</a>]</td> +<td valign="middle" align="left">[<a href="libunistring_abt.html#SEC_About" title="About (help)"> ? </a>]</td> +</tr></table> +<p> + <font size="-1"> + This document was generated by <em>Bruno Haible</em> on <em>July, 1 2009</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.78a</em></a>. + </font> + <br> + +</p> +</body> +</html> |