117 lines
3.3 KiB
D
117 lines
3.3 KiB
D
// Copyright Brian Schott (Hackerpilot) 2012.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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module dscanner.highlighter;
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import std.stdio;
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import std.array;
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import dparse.lexer;
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// http://ethanschoonover.com/solarized
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void highlight(R)(ref R tokens, string fileName, string themeName)
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{
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immutable(Theme)* theme = getTheme(themeName);
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stdout.writeln(q"[
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>]");
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stdout.writeln("<title>", fileName, "</title>");
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stdout.writeln(q"[</head>
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<body>
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<style type="text/css">]");
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stdout.writefln("
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html { background-color: %s; color: %s; }
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.kwrd { color: %s; font-weight: bold; }
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.com { color: %s; font-style: italic; }
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.num { color: %s; font-weight: bold; }
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.str { color: %s; font-style: italic; }
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.op { color: %s; font-weight: bold; }
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.type { color: %s; font-weight: bold; }
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.cons { color: %s; font-weight: bold; }
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</style>
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<pre>", theme.bg, theme.fg, theme.kwrd, theme.com, theme.num, theme.str,
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theme.op, theme.type, theme.cons);
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while (!tokens.empty)
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{
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auto t = tokens.front;
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tokens.popFront();
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if (isBasicType(t.type))
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writeSpan("type", str(t.type));
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else if (isKeyword(t.type))
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writeSpan("kwrd", str(t.type));
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else if (t.type == tok!"comment")
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writeSpan("com", t.text);
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else if (isStringLiteral(t.type) || t.type == tok!"characterLiteral")
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writeSpan("str", t.text);
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else if (isNumberLiteral(t.type))
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writeSpan("num", t.text);
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else if (isOperator(t.type))
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writeSpan("op", str(t.type));
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else if (t.type == tok!"specialTokenSequence" || t.type == tok!"scriptLine")
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writeSpan("cons", t.text.replace("<", "<"));
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else
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{
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version (Windows)
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{
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// Stupid Windows automatically does a LF → CRLF, so
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// CRLF → CRCRLF, which is obviously wrong.
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// Strip out the CR characters here to avoid this.
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stdout.write(t.text.replace("<", "<").replace("\r", ""));
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}
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else
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stdout.write(t.text.replace("<", "<"));
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}
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}
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stdout.writeln("</pre>\n</body></html>");
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}
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void writeSpan(string cssClass, string value)
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{
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version (Windows)
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stdout.write(`<span class="`, cssClass, `">`, value.replace("&",
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"&").replace("<", "<").replace("\r", ""), `</span>`);
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else
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stdout.write(`<span class="`, cssClass, `">`, value.replace("&",
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"&").replace("<", "<"), `</span>`);
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}
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struct Theme
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{
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string bg;
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string fg;
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string kwrd;
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string com;
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string num;
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string str;
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string op;
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string type;
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string cons;
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}
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immutable(Theme)* getTheme(string themeName)
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{
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immutable Theme[string] themes = [
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"solarized": Theme("#fdf6e3", "#002b36", "#b58900", "#93a1a1", "#dc322f", "#2aa198", "#586e75",
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"#268bd2", "#859900"),
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"solarized-dark": Theme("#002b36", "#fdf6e3", "#b58900", "#586e75", "#dc322f", "#2aa198",
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"#93a1a1", "#268bd2", "#859900"),
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"gruvbox": Theme("#fbf1c7", "#282828", "#b57614", "#a89984", "#9d0006", "#427b58",
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"#504945", "#076678", "#79740e"),
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"gruvbox-dark": Theme("#282828", "#fbf1c7", "#d79921", "#7c6f64",
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"#cc241d", "#689d6a", "#a89984", "#458588", "#98971a")
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];
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immutable(Theme)* theme = themeName in themes;
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// Default theme
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if (theme is null)
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theme = &themes["solarized"];
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return theme;
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}
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