// Copyright Brian Schott (Hackerpilot) 2012.
// 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 dscanner.highlighter;
import std.stdio;
import std.array;
import dparse.lexer;
// http://ethanschoonover.com/solarized
void highlight(R)(ref R tokens, string fileName, string themeName)
{
immutable(Theme)* theme = getTheme(themeName);
stdout.writeln(q"[
]");
stdout.writeln("", fileName, "");
stdout.writeln(q"[
", theme.bg, theme.fg, theme.kwrd, theme.com, theme.num, theme.str,
theme.op, theme.type, theme.cons);
while (!tokens.empty)
{
auto t = tokens.front;
tokens.popFront();
if (isBasicType(t.type))
writeSpan("type", str(t.type));
else if (isKeyword(t.type))
writeSpan("kwrd", str(t.type));
else if (t.type == tok!"comment")
writeSpan("com", t.text);
else if (isStringLiteral(t.type) || t.type == tok!"characterLiteral")
writeSpan("str", t.text);
else if (isNumberLiteral(t.type))
writeSpan("num", t.text);
else if (isOperator(t.type))
writeSpan("op", str(t.type));
else if (t.type == tok!"specialTokenSequence" || t.type == tok!"scriptLine")
writeSpan("cons", t.text.replace("<", "<"));
else
{
version (Windows)
{
// Stupid Windows automatically does a LF → CRLF, so
// CRLF → CRCRLF, which is obviously wrong.
// Strip out the CR characters here to avoid this.
stdout.write(t.text.replace("<", "<").replace("\r", ""));
}
else
stdout.write(t.text.replace("<", "<"));
}
}
stdout.writeln("\n");
}
void writeSpan(string cssClass, string value)
{
version (Windows)
stdout.write(``, value.replace("&",
"&").replace("<", "<").replace("\r", ""), ``);
else
stdout.write(``, value.replace("&",
"&").replace("<", "<"), ``);
}
struct Theme
{
string bg;
string fg;
string kwrd;
string com;
string num;
string str;
string op;
string type;
string cons;
}
immutable(Theme)* getTheme(string themeName)
{
immutable Theme[string] themes = [
"solarized": Theme("#fdf6e3", "#002b36", "#b58900", "#93a1a1", "#dc322f", "#2aa198", "#586e75",
"#268bd2", "#859900"),
"solarized-dark": Theme("#002b36", "#fdf6e3", "#b58900", "#586e75", "#dc322f", "#2aa198",
"#93a1a1", "#268bd2", "#859900"),
"gruvbox": Theme("#fbf1c7", "#282828", "#b57614", "#a89984", "#9d0006", "#427b58",
"#504945", "#076678", "#79740e"),
"gruvbox-dark": Theme("#282828", "#fbf1c7", "#d79921", "#7c6f64",
"#cc241d", "#689d6a", "#a89984", "#458588", "#98971a")
];
immutable(Theme)* theme = themeName in themes;
// Default theme
if (theme is null)
theme = &themes["solarized"];
return theme;
}