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<?xml version="1.0" encoding="iso-8859-2"?>
<reference id="ref.readline">
<title>GNU Readline</title>
<titleabbrev>Readline</titleabbrev>
<partintro>
<simpara>
<function>readline</function> funkce implementuj rozhran ke GNU
Readline knihovn. Tyto funkce poskytuj editovateln pkazov dky.
Pkladem me bt zpsob, jakm vm Bash umouje vkldat znaky nebo
listovat histori pkaz pomoc klves pro pohyb kurzoru. Z interaktivn
povahy tto knihovny vyplv, e nen pli uiten pro psan webovch
aplikac, ale me bt uiten pi psan skript, kter se maj spoutt
z pkazov dky.
</simpara>
<simpara>
Domovskou strnkou GNU Readline projektu je
<ulink url="&url.readline;">&url.readline;</ulink>. Udruje jej Chet Ramey,
kter je tak autorem Bashe.
</simpara>
</partintro>
<refentry id="function.readline">
<refnamediv>
<refname>readline</refname>
<refpurpose>Pest dek</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>string</type><methodname>readline</methodname>
<methodparam choice="opt"><type>string</type><parameter>prompt</parameter></methodparam>
</methodsynopsis>
<para>
Tato funkce vrt jeden dek od uivatele. Mete specifikovat etzec,
kter se m uivateli zobrazit jako vzva. Z vrcenho dku je odstranna
sekvence konce dku. Do historie tento dek muste pidat sami pomoc
<function>readline_add_history</function>.
</para>
<example>
<title><function>readline</function></title>
<programlisting role="php">
//ziska 3 prikazy uzivatele
for ($i=0; $i < 3; $i++) {
$line = readline ("Command: ");
readline_add_history ($line);
}
//vypise historii
print_r (readline_list_history());
//vypise promenne
print_r (readline_info());
</programlisting>
</example>
</refsect1>
</refentry>
<refentry id="function.readline-add-history">
<refnamediv>
<refname>readline_add_history</refname>
<refpurpose>Pidat dek do historie</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>void</type><methodname>readline_add_history</methodname>
<methodparam><type>string</type><parameter>line</parameter></methodparam>
</methodsynopsis>
<para>Tato funkce pid dek do historie pkazov dky.</para>
</refsect1>
</refentry>
<refentry id="function.readline-clear-history">
<refnamediv>
<refname>readline_clear_history</refname>
<refpurpose>Smazat historii</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>boolean</type><methodname>readline_clear_history</methodname>
<methodparam><type>void</type><parameter/></methodparam>
</methodsynopsis>
<para>Tato funkce smae celou historii pkazov dky.</para>
</refsect1>
</refentry>
<refentry id="function.readline-completion-function">
<refnamediv>
<refname>readline_completion_function</refname>
<refpurpose>Zaregistrovat dokonujc funkci</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>boolean</type><methodname>readline_completion_function</methodname>
<methodparam><type>string</type><parameter>line</parameter></methodparam>
</methodsynopsis>
<para>
Tato funkce zaregistruje dokonujc funkci. Muste zadat nzev existujc
funkce, kter pijm sten pkaz a vrac pole monch protjk.
Toto je stejn funkcionalita jakou dostanete, pokud v Bashi zmknete klvesu
tab.
</para>
</refsect1>
</refentry>
<refentry id="function.readline-info">
<refnamediv>
<refname>readline_info</refname>
<refpurpose>Zjistit/nastavit rzn intern promnn readline</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>mixed</type><methodname>readline_info</methodname>
<methodparam choice="opt"><type>string</type><parameter>varname</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>newvalue</parameter></methodparam>
</methodsynopsis>
<para>
Pi voln bez argument tato funkce vrt pole hodnot pro vechna nastaven,
kter readline pouv. Prvky jsou indexovny podle nsledujcch hodnot:
done, end, erase_empty_line, library_version, line_buffer, mark,
pending_input, point, prompt, readline_name a terminal_name.
</para>
<para>
Pi voln s jednm argumentem vrt hodnotu tohoto nastaven. Pi voln se
dvma argumenty se nastaven zmen na danou hodnotu.
</para>
</refsect1>
</refentry>
<refentry id="function.readline-list-history">
<refnamediv>
<refname>readline_list_history</refname>
<refpurpose>Vypsat historii</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>array</type><methodname>readline_list_history</methodname>
<methodparam><type>void</type><parameter/></methodparam>
</methodsynopsis>
<para>
Tato funkce vrt pole cel historie pkazov dky. Prvky jsou indexovny
integery, ponaje nulou.
</para>
</refsect1>
</refentry>
<refentry id="function.readline-read-history">
<refnamediv>
<refname>readline_read_history</refname>
<refpurpose>Vrtit historii</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>boolean</type><methodname>readline_read_history</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>Tato funkce pete historii pkazov dky ze souboru.</para>
</refsect1>
</refentry>
<refentry id="function.readline-write-history">
<refnamediv>
<refname>readline_write_history</refname>
<refpurpose>Zapsat historii</refpurpose>
</refnamediv>
<refsect1>
<title>Popis</title>
<methodsynopsis>
<type>boolean</type><methodname>readline_write_history</methodname>
<methodparam><type>string</type><parameter>filename</parameter></methodparam>
</methodsynopsis>
<para>Tato funkce zape historii pkazov dky do souboru.</para>
</refsect1>
</refentry>
</reference>
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