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<!doctype html> <title>CodeMirror: D mode</title> <meta charset="utf-8"/> <link rel=stylesheet href="../../doc/docs.css"> <link rel="stylesheet" href="../../lib/codemirror.css"> <script src="../../lib/codemirror.js"></script> <script src="../../addon/edit/matchbrackets.js"></script> <script src="d.js"></script> <style>.CodeMirror {border: 2px inset #dee;}</style> <div id=nav> <a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a> <ul> <li><a href="../../index.html">Home</a> <li><a href="../../doc/manual.html">Manual</a> <li><a href="https://github.com/codemirror/codemirror">Code</a> </ul> <ul> <li><a href="../index.html">Language modes</a> <li><a class=active href="#">D</a> </ul> </div> <article> <h2>D mode</h2> <form><textarea id="code" name="code"> /* D demo code // copied from phobos/sd/metastrings.d */ // Written in the D programming language. /** Templates with which to do compile-time manipulation of strings. Macros: WIKI = Phobos/StdMetastrings Copyright: Copyright Digital Mars 2007 - 2009. License: <a href="http://www.boost.org/LICENSE_1_0.txt">Boost License 1.0</a>. Authors: jQuery(WEB digitalmars.com, Walter Bright), Don Clugston Source: jQuery(PHOBOSSRC std/_metastrings.d) */ /* Copyright Digital Mars 2007 - 2009. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) */ module std.metastrings; /** Formats constants into a string at compile time. Analogous to jQuery(XREF string,format). Parameters: A = tuple of constants, which can be strings, characters, or integral values. Formats: * The formats supported are %s for strings, and %% * for the % character. Example: --- import std.metastrings; import std.stdio; void main() { string s = Format!("Arg %s = %s", "foo", 27); writefln(s); // "Arg foo = 27" } * --- */ template Format(A...) { static if (A.length == 0) enum Format = ""; else static if (is(typeof(A[0]) : const(char)[])) enum Format = FormatString!(A[0], A[1..$]); else enum Format = toStringNow!(A[0]) ~ Format!(A[1..$]); } template FormatString(const(char)[] F, A...) { static if (F.length == 0) enum FormatString = Format!(A); else static if (F.length == 1) enum FormatString = F[0] ~ Format!(A); else static if (F[0..2] == "%s") enum FormatString = toStringNow!(A[0]) ~ FormatString!(F[2..$],A[1..$]); else static if (F[0..2] == "%%") enum FormatString = "%" ~ FormatString!(F[2..$],A); else { static assert(F[0] != '%', "unrecognized format %" ~ F[1]); enum FormatString = F[0] ~ FormatString!(F[1..$],A); } } unittest { auto s = Format!("hel%slo", "world", -138, 'c', true); assert(s == "helworldlo-138ctrue", "[" ~ s ~ "]"); } /** * Convert constant argument to a string. */ template toStringNow(ulong v) { static if (v < 10) enum toStringNow = "" ~ cast(char)(v + '0'); else enum toStringNow = toStringNow!(v / 10) ~ toStringNow!(v % 10); } unittest { static assert(toStringNow!(1uL << 62) == "4611686018427387904"); } /// ditto template toStringNow(long v) { static if (v < 0) enum toStringNow = "-" ~ toStringNow!(cast(ulong) -v); else enum toStringNow = toStringNow!(cast(ulong) v); } unittest { static assert(toStringNow!(0x100000000) == "4294967296"); static assert(toStringNow!(-138L) == "-138"); } /// ditto template toStringNow(uint U) { enum toStringNow = toStringNow!(cast(ulong)U); } /// ditto template toStringNow(int I) { enum toStringNow = toStringNow!(cast(long)I); } /// ditto template toStringNow(bool B) { enum toStringNow = B ? "true" : "false"; } /// ditto template toStringNow(string S) { enum toStringNow = S; } /// ditto template toStringNow(char C) { enum toStringNow = "" ~ C; } /******** * Parse unsigned integer literal from the start of string s. * returns: * .value = the integer literal as a string, * .rest = the string following the integer literal * Otherwise: * .value = null, * .rest = s */ template parseUinteger(const(char)[] s) { static if (s.length == 0) { enum value = ""; enum rest = ""; } else static if (s[0] >= '0' && s[0] <= '9') { enum value = s[0] ~ parseUinteger!(s[1..$]).value; enum rest = parseUinteger!(s[1..$]).rest; } else { enum value = ""; enum rest = s; } } /******** Parse integer literal optionally preceded by jQuery(D '-') from the start of string jQuery(D s). Returns: .value = the integer literal as a string, .rest = the string following the integer literal Otherwise: .value = null, .rest = s */ template parseInteger(const(char)[] s) { static if (s.length == 0) { enum value = ""; enum rest = ""; } else static if (s[0] >= '0' && s[0] <= '9') { enum value = s[0] ~ parseUinteger!(s[1..$]).value; enum rest = parseUinteger!(s[1..$]).rest; } else static if (s.length >= 2 && s[0] == '-' && s[1] >= '0' && s[1] <= '9') { enum value = s[0..2] ~ parseUinteger!(s[2..$]).value; enum rest = parseUinteger!(s[2..$]).rest; } else { enum value = ""; enum rest = s; } } unittest { assert(parseUinteger!("1234abc").value == "1234"); assert(parseUinteger!("1234abc").rest == "abc"); assert(parseInteger!("-1234abc").value == "-1234"); assert(parseInteger!("-1234abc").rest == "abc"); } /** Deprecated aliases held for backward compatibility. */ deprecated alias toStringNow ToString; /// Ditto deprecated alias parseUinteger ParseUinteger; /// Ditto deprecated alias parseUinteger ParseInteger; </textarea></form> <script> var editor = CodeMirror.fromTextArea(document.getElementById("code"), { lineNumbers: true, matchBrackets: true, indentUnit: 4, mode: "text/x-d" }); </script> <p>Simple mode that handle D-Syntax (<a href="http://www.dlang.org">DLang Homepage</a>).</p> <p><strong>MIME types defined:</strong> <code>text/x-d</code> .</p> </article>
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