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Groovy REPL: highlight command and groovy language syntax
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console/src/main/java/org/jline/console/impl/SystemHighlighter.java
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|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* | ||
| * Copyright (c) 2002-2020, 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.console.impl; | ||
|
|
||
| import org.jline.builtins.Nano.SyntaxHighlighter; | ||
| import org.jline.console.SystemRegistry; | ||
| import org.jline.reader.LineReader; | ||
| import org.jline.reader.Parser; | ||
| import org.jline.reader.impl.DefaultHighlighter; | ||
| import org.jline.utils.AttributedString; | ||
| import org.jline.utils.AttributedStringBuilder; | ||
|
|
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| import java.util.regex.Pattern; | ||
|
|
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| /** | ||
| * Highlight command and language syntax using nanorc highlighter. | ||
| * | ||
| * @author <a href="mailto:matti.rintanikkola@gmail.com">Matti Rinta-Nikkola</a> | ||
| */ | ||
| public class SystemHighlighter extends DefaultHighlighter { | ||
| private final SyntaxHighlighter commandHighlighter; | ||
| private final SyntaxHighlighter argsHighlighter; | ||
| private final SyntaxHighlighter langHighlighter; | ||
| private Pattern errorPattern; | ||
| private int errorIndex = -1; | ||
|
|
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| public SystemHighlighter(SyntaxHighlighter commandHighlighter, SyntaxHighlighter argsHighlighter | ||
| , SyntaxHighlighter langHighlighter) { | ||
| this.commandHighlighter = commandHighlighter; | ||
| this.argsHighlighter = argsHighlighter; | ||
| this.langHighlighter = langHighlighter; | ||
| } | ||
|
|
||
| @Override | ||
| public void setErrorPattern(Pattern errorPattern) { | ||
| this.errorPattern = errorPattern; | ||
| super.setErrorPattern(errorPattern); | ||
| } | ||
|
|
||
| @Override | ||
| public void setErrorIndex(int errorIndex) { | ||
| this.errorIndex = errorIndex; | ||
| super.setErrorIndex(errorIndex); | ||
| } | ||
|
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| @Override | ||
| public AttributedString highlight(LineReader reader, String buffer) { | ||
| return doDefaultHighlight(reader) ? super.highlight(reader, buffer) : systemHighlight(reader.getParser(), buffer); | ||
| } | ||
|
|
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| private boolean doDefaultHighlight(LineReader reader) { | ||
| String search = reader.getSearchTerm(); | ||
| return ((search != null && search.length() > 0) || reader.getRegionActive() != LineReader.RegionType.NONE | ||
| || errorIndex > -1 || errorPattern != null); | ||
| } | ||
|
|
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| private AttributedString systemHighlight(Parser parser, String buffer) { | ||
| AttributedString out; | ||
| if (buffer.trim().isEmpty()) { | ||
| out = new AttributedStringBuilder().append(buffer).toAttributedString(); | ||
| } else if (SystemRegistry.get().isCommandOrScript(parser.getCommand(buffer.trim().split("\\s+")[0]))) { | ||
| if (commandHighlighter != null || argsHighlighter != null) { | ||
| int idx = -1; | ||
| boolean cmdFound = false; | ||
| for (int i = 0; i < buffer.length(); i++) { | ||
| char c = buffer.charAt(i); | ||
| if (c != ' ') { | ||
| cmdFound = true; | ||
| } else if (cmdFound) { | ||
| idx = i; | ||
| break; | ||
| } | ||
| } | ||
| AttributedStringBuilder asb = new AttributedStringBuilder(); | ||
| if (idx < 0) { | ||
| highlightCommand(buffer, asb); | ||
| } else { | ||
| highlightCommand(buffer.substring(0, idx), asb); | ||
| if (argsHighlighter != null) { | ||
| asb.append(argsHighlighter.highlight(buffer.substring(idx))); | ||
| } else { | ||
| asb.append(buffer.substring(idx)); | ||
| } | ||
| } | ||
| out = asb.toAttributedString(); | ||
| } else { | ||
| out = new AttributedStringBuilder().append(buffer).toAttributedString(); | ||
| } | ||
| } else if (langHighlighter != null) { | ||
| out = langHighlighter.highlight(buffer); | ||
| } else { | ||
| out = new AttributedStringBuilder().append(buffer).toAttributedString(); | ||
| } | ||
| return out; | ||
| } | ||
|
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| private void highlightCommand(String command, AttributedStringBuilder asb) { | ||
| if (commandHighlighter != null) { | ||
| asb.append(commandHighlighter.highlight(command)); | ||
| } else { | ||
| asb.append(command); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| syntax "ARGS" | ||
|
|
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| color brightblue "\<[-]?[0-9]*([Ee][+-]?[0-9]+)?\>" "\<[-]?[0](\.[0-9]+)?\>" | ||
| color yellow ""(\\.|[^"])*"|'(\\.|[^'])*'|[a-zA-Z]+[a-zA-Z0-9]*" | ||
| color green "\<(console|grab|inspect)\>" | ||
| color cyan "\<null\>" | ||
| color brightcyan "\<(true|false)\>" | ||
| color brightyellow "\"(\\"|[^"])*\"\s*:" "'(\'|[^'])*'\s*:" "(\[|,)\s*[a-zA-Z0-9]*\s*:" | ||
| color white "(:|\[|,|\])" | ||
| color magenta "\\u[0-9a-fA-F]{4}|\\[bfnrt'"/\\]" | ||
| color ,red " + +| + +" |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,5 @@ | ||
| syntax "COMMAND" | ||
|
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| color green "[a-zA-Z]+[a-zA-Z0-9]*" | ||
| color yellow ".*=" | ||
| color white "(\"|'|\.|=|:|\[|,|\])" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| ## Here is an example for Groovy. | ||
| ## | ||
| syntax "Groovy" "\.groovy$" | ||
| color green "\<(boolean|byte|char|double|float|int|long|new|short|this|transient|void|def|it)\>" | ||
| color red "\<(break|case|catch|continue|default|do|else|finally|for|if|return|switch|throw|try|while)\>" | ||
| color green,,faint "(([a-z]{2,}[.]{1}){2,10}([a-z]{2,}){0,1})" | ||
| color green,,faint "\<(print|println|sleep)\>" | ||
| color green "\<[A-Z]{0,2}([A-Z]{1}[a-z]+){1,}\>" | ||
| color cyan "\<(abstract|class|extends|final|implements|import|instanceof|interface|native|package|private|protected|public|static|strictfp|super|synchronized|throws|volatile)\>" | ||
| color red ""[^"]*"" | ||
| color yellow "\<(true|false|null)\>" | ||
| color yellow "\<[A-Z]+([_]{1}[A-Z]+){0,}\>" | ||
| icolor yellow "\b(([1-9][0-9]+)|0+)\.[0-9]+\b" "\b[1-9][0-9]*\b" "\b0[0-7]*\b" "\b0x[1-9a-f][0-9a-f]*\b" | ||
| color blue "//.*" | ||
| color blue start="/\*" end="\*/" | ||
| color brightblue start="/\*\*" end="\*/" | ||
| color brightwhite,yellow "(FIXME|TODO|XXX)" |
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