org.jline.utils.AttributedCharSequence Maven / Gradle / Ivy
The newest version!
/*
* Copyright (c) 2002-2019, the original author or authors.
*
* This software is distributable under the BSD license. See the terms of the
* BSD license in the documentation provided with this software.
*
* https://opensource.org/licenses/BSD-3-Clause
*/
package org.jline.utils;
import java.util.ArrayList;
import java.util.List;
import org.jline.terminal.Terminal;
import org.jline.terminal.impl.AbstractWindowsTerminal;
import org.jline.utils.InfoCmp.Capability;
import static org.jline.utils.AttributedStyle.BG_COLOR;
import static org.jline.utils.AttributedStyle.BG_COLOR_EXP;
import static org.jline.utils.AttributedStyle.FG_COLOR;
import static org.jline.utils.AttributedStyle.FG_COLOR_EXP;
import static org.jline.utils.AttributedStyle.F_BACKGROUND;
import static org.jline.utils.AttributedStyle.F_BLINK;
import static org.jline.utils.AttributedStyle.F_BOLD;
import static org.jline.utils.AttributedStyle.F_CONCEAL;
import static org.jline.utils.AttributedStyle.F_CROSSED_OUT;
import static org.jline.utils.AttributedStyle.F_FAINT;
import static org.jline.utils.AttributedStyle.F_FOREGROUND;
import static org.jline.utils.AttributedStyle.F_INVERSE;
import static org.jline.utils.AttributedStyle.F_ITALIC;
import static org.jline.utils.AttributedStyle.F_UNDERLINE;
import static org.jline.utils.AttributedStyle.F_HIDDEN;
import static org.jline.utils.AttributedStyle.MASK;
import static org.jline.terminal.TerminalBuilder.PROP_DISABLE_ALTERNATE_CHARSET;
public abstract class AttributedCharSequence implements CharSequence {
// cache the value here as we can't afford to get it each time
static final boolean DISABLE_ALTERNATE_CHARSET = Boolean.getBoolean(PROP_DISABLE_ALTERNATE_CHARSET);
public void print(Terminal terminal) {
terminal.writer().print(toAnsi(terminal));
}
public void println(Terminal terminal) {
terminal.writer().println(toAnsi(terminal));
}
public String toAnsi() {
return toAnsi(null);
}
public String toAnsi(Terminal terminal) {
if (terminal != null && Terminal.TYPE_DUMB.equals(terminal.getType())) {
return toString();
}
int colors = 256;
boolean force256colors = false;
String alternateIn = null, alternateOut = null;
if (terminal != null) {
Integer max_colors = terminal.getNumericCapability(Capability.max_colors);
if (max_colors != null) {
colors = max_colors;
}
force256colors = AbstractWindowsTerminal.TYPE_WINDOWS_256_COLOR.equals(terminal.getType())
|| AbstractWindowsTerminal.TYPE_WINDOWS_CONEMU.equals(terminal.getType());
if (!DISABLE_ALTERNATE_CHARSET) {
alternateIn = Curses.tputs(terminal.getStringCapability(Capability.enter_alt_charset_mode));
alternateOut = Curses.tputs(terminal.getStringCapability(Capability.exit_alt_charset_mode));
}
}
return toAnsi(colors, force256colors, alternateIn, alternateOut);
}
public String toAnsi(int colors, boolean force256colors) {
return toAnsi(colors, force256colors, null, null);
}
public String toAnsi(int colors, boolean force256colors, String altIn, String altOut) {
StringBuilder sb = new StringBuilder();
int style = 0;
int foreground = -1;
int background = -1;
boolean alt = false;
for (int i = 0; i < length(); i++) {
char c = charAt(i);
if (altIn != null && altOut != null) {
char pc = c;
switch (c) {
case '┘': c = 'j'; break;
case '┐': c = 'k'; break;
case '┌': c = 'l'; break;
case '└': c = 'm'; break;
case '┼': c = 'n'; break;
case '─': c = 'q'; break;
case '├': c = 't'; break;
case '┤': c = 'u'; break;
case '┴': c = 'v'; break;
case '┬': c = 'w'; break;
case '│': c = 'x'; break;
}
boolean oldalt = alt;
alt = c != pc;
if (oldalt ^ alt) {
sb.append(alt ? altIn : altOut);
}
}
int s = styleCodeAt(i) & ~F_HIDDEN; // The hidden flag does not change the ansi styles
if (style != s) {
int d = (style ^ s) & MASK;
int fg = (s & F_FOREGROUND) != 0 ? (s & FG_COLOR) >>> FG_COLOR_EXP : -1;
int bg = (s & F_BACKGROUND) != 0 ? (s & BG_COLOR) >>> BG_COLOR_EXP : -1;
if (s == 0) {
sb.append("\033[0m");
foreground = background = -1;
} else {
sb.append("\033[");
boolean first = true;
if ((d & F_ITALIC) != 0) {
first = attr(sb, (s & F_ITALIC) != 0 ? "3" : "23", first);
}
if ((d & F_UNDERLINE) != 0) {
first = attr(sb, (s & F_UNDERLINE) != 0 ? "4" : "24", first);
}
if ((d & F_BLINK) != 0) {
first = attr(sb, (s & F_BLINK) != 0 ? "5" : "25", first);
}
if ((d & F_INVERSE) != 0) {
first = attr(sb, (s & F_INVERSE) != 0 ? "7" : "27", first);
}
if ((d & F_CONCEAL) != 0) {
first = attr(sb, (s & F_CONCEAL) != 0 ? "8" : "28", first);
}
if ((d & F_CROSSED_OUT) != 0) {
first = attr(sb, (s & F_CROSSED_OUT) != 0 ? "9" : "29", first);
}
if (foreground != fg) {
if (fg >= 0) {
int rounded = Colors.roundColor(fg, colors);
if (rounded < 8 && !force256colors) {
first = attr(sb, "3" + Integer.toString(rounded), first);
// small hack to force setting bold again after a foreground color change
d |= (s & F_BOLD);
} else if (rounded < 16 && !force256colors) {
first = attr(sb, "9" + Integer.toString(rounded - 8), first);
// small hack to force setting bold again after a foreground color change
d |= (s & F_BOLD);
} else {
first = attr(sb, "38;5;" + Integer.toString(rounded), first);
}
} else {
first = attr(sb, "39", first);
}
foreground = fg;
}
if (background != bg) {
if (bg >= 0) {
int rounded = Colors.roundColor(bg, colors);
if (rounded < 8 && !force256colors) {
first = attr(sb, "4" + Integer.toString(rounded), first);
} else if (rounded < 16 && !force256colors) {
first = attr(sb, "10" + Integer.toString(rounded - 8), first);
} else {
first = attr(sb, "48;5;" + Integer.toString(rounded), first);
}
} else {
first = attr(sb, "49", first);
}
background = bg;
}
if ((d & (F_BOLD | F_FAINT)) != 0) {
if ( (d & F_BOLD) != 0 && (s & F_BOLD) == 0
|| (d & F_FAINT) != 0 && (s & F_FAINT) == 0) {
first = attr(sb, "22", first);
}
if ((d & F_BOLD) != 0 && (s & F_BOLD) != 0) {
first = attr(sb, "1", first);
}
if ((d & F_FAINT) != 0 && (s & F_FAINT) != 0) {
first = attr(sb, "2", first);
}
}
sb.append("m");
}
style = s;
}
sb.append(c);
}
if (alt) {
sb.append(altOut);
}
if (style != 0) {
sb.append("\033[0m");
}
return sb.toString();
}
@Deprecated
public static int rgbColor(int col) {
return Colors.rgbColor(col);
}
@Deprecated
public static int roundColor(int col, int max) {
return Colors.roundColor(col, max);
}
@Deprecated
public static int roundRgbColor(int r, int g, int b, int max) {
return Colors.roundRgbColor(r, g, b, max);
}
private static boolean attr(StringBuilder sb, String s, boolean first) {
if (!first) {
sb.append(";");
}
sb.append(s);
return false;
}
public abstract AttributedStyle styleAt(int index);
int styleCodeAt(int index) {
return styleAt(index).getStyle();
}
public boolean isHidden(int index) {
return (styleCodeAt(index) & F_HIDDEN) != 0;
}
public int runStart(int index) {
AttributedStyle style = styleAt(index);
while (index > 0 && styleAt(index - 1).equals(style)) {
index--;
}
return index;
}
public int runLimit(int index) {
AttributedStyle style = styleAt(index);
while (index < length() - 1 && styleAt(index + 1).equals(style)) {
index++;
}
return index + 1;
}
@Override
public abstract AttributedString subSequence(int start, int end);
public AttributedString substring(int start, int end) {
return subSequence(start, end);
}
protected abstract char[] buffer();
protected abstract int offset();
@Override
public char charAt(int index) {
return buffer()[offset() + index];
}
public int codePointAt(int index) {
return Character.codePointAt(buffer(), index + offset());
}
public boolean contains(char c) {
for (int i = 0; i < length(); i++) {
if (charAt(i) == c) {
return true;
}
}
return false;
}
public int codePointBefore(int index) {
return Character.codePointBefore(buffer(), index + offset());
}
public int codePointCount(int index, int length) {
return Character.codePointCount(buffer(), index + offset(), length);
}
public int columnLength() {
int cols = 0;
int len = length();
for (int cur = 0; cur < len; ) {
int cp = codePointAt(cur);
if (!isHidden(cur))
cols += WCWidth.wcwidth(cp);
cur += Character.charCount(cp);
}
return cols;
}
public AttributedString columnSubSequence(int start, int stop) {
int begin = 0;
int col = 0;
while (begin < this.length()) {
int cp = codePointAt(begin);
int w = isHidden(begin) ? 0 : WCWidth.wcwidth(cp);
if (col + w > start) {
break;
}
begin += Character.charCount(cp);
col += w;
}
int end = begin;
while (end < this.length()) {
int cp = codePointAt(end);
if (cp == '\n')
break;
int w = isHidden(end) ? 0 : WCWidth.wcwidth(cp);
if (col + w > stop) {
break;
}
end += Character.charCount(cp);
col += w;
}
return subSequence(begin, end);
}
public List columnSplitLength(int columns) {
return columnSplitLength(columns, false, true);
}
public List columnSplitLength(int columns, boolean includeNewlines, boolean delayLineWrap) {
List strings = new ArrayList<>();
int cur = 0;
int beg = cur;
int col = 0;
while (cur < length()) {
int cp = codePointAt(cur);
int w = isHidden(cur) ? 0 : WCWidth.wcwidth(cp);
if (cp == '\n') {
strings.add(subSequence(beg, includeNewlines ? cur+1 : cur));
beg = cur + 1;
col = 0;
} else if ((col += w) > columns) {
strings.add(subSequence(beg, cur));
beg = cur;
col = w;
}
cur += Character.charCount(cp);
}
strings.add(subSequence(beg, cur));
return strings;
}
@Override
public String toString() {
return new String(buffer(), offset(), length());
}
public AttributedString toAttributedString() {
return substring(0, length());
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy