Ral To Ansi Color Conversion

[Antonio Brittenham]

You can try vim with AnsiEsc.vim plugin to view ANSI colors through escape codes, then redirect to standard output to vim - (make sure you've activated :syntax on). Then convert the file to HTML by vim command: :TOhtml. The generated HTML file should have coloured output.

Update: I've added a perl method, using module HTML::FromANSI from CPAN .. To install it, just extract it to a directory, and run, as root: perl -MCPAN -e 'install HTML::FromANSI' from that directory. The particular feature to suit your request is a script called ansi2html. Interestingly enough, it shows the same loss-of-color after the overlaid k in the filenames, as does the elisp-shell script... Here is an example usage:

I originally tested it on a black background, but I noticed that for some reason, a white background doesn't play well with one of the introduced Escape Codes,\e[K, which seems to be ERASE_LINE (Erase the current line of terminal output). I've added a line to remove this Escape Code. It now works for a white background.

Here is a sample of the html output, in Firefox... If I get time, I'll look further into the overlaying ANSI codes issue. where the red ks overlap the green filenames, but that is only there because of a hurriedly chosen test regex for grep... (maybe that is something \e[K influences...

For those who have a command that is written on the assumption that piped output will never have color (e.g. some testing frameworks) you may find it useful to use the script utility to first save the ansi output. This can then be pushed to aha or the other utilities mentioned.

Basically I want to display the contents of the file inside confluence while retaining the color ( i.e. ansi color code red for text means text is displayed as red in confluence) . I know I can do it by converting ansi to html and then pasting the html in confluence but html macro is disabled in confluence due to security reasons thus, how to retain color while displaying ansi file

There are some javascript libraries that can convert it for you ... links below. You could create a user macro that passes the $body into a javascript variable. At that point it is just straight javascript and html and you could render it out the page without needing to enable the html macro.

Picocli is a one-file framework for creating Java command line applications with almost zero code.It supports a variety of command line syntax styles including POSIX, GNU, MS-DOS and more. It generates highly customizable usage help messages that use ANSI colors and styles to contrast important elements and reduce the cognitive load on the user.

Picocli-based applications can have command line TAB completion showing available options, option parameters and subcommands, for any level of nested subcommands.Picocli-based applications can be ahead-of-time compiled to a native image, with extremely fast startup time and lower memory requirements, which can be distributed as a single executable file.

Another distinguishing feature of picocli is how it aims to let users run picocli-based applications without requiring picocli as an external dependency:all the source code lives in a single file, to encourage application authors to include it in source form.

Implement Runnable or Callable and your command can be executed in one line of code.The example main method calls CommandLine.execute to parse the command line, handle errors, handle requests for usage and version help, and invoke the business logic. Applications can call System.exit with the returned exit code to signal success or failure to their caller.

Compile time error checking. The annotation processor shows errors for invalid annotations and attributes immediately when you compile, instead of during testing at runtime, resulting in shorter feedback cycles.

GraalVM native images. The annotation processor generates and updates GraalVM configuration files underMETA-INF/native-image/picocli-generated/$project during compilation, to be included in the application jar.This includes configuration files for reflection, resources and dynamic proxies.By embedding these configuration files, your jar is instantly Graal-enabled.In most cases no further configuration is needed when generating a native image.

The picocli annotation processor supports a number of options, most important of which is the project option to control the output subdirectory: the generated files are written to META-INF/native-image/picocli-generated/$project. A good convention is to use the Maven $project.groupId/$project.artifactId as the value; a unique subdirectory ensures your jar can be shaded with other jars that may also contain generated configuration files.

There are many ways to run picocli-based applications, depending on whether we included picocli as source, created a jar for our application or not, and whether we created a shaded jar (also known as uber-jar) containing all dependencies.

Picocli 3.5 introduced password support: for options and positional parameters marked as interactive, the user is prompted to enter a value on the console.When running on Java 6 or higher, picocli will use the Console.readPassword API so that user input is not echoed to the console.

The example below demonstrates how an interactive option can be used to specify a password.From picocli 3.9.6, interactive options can use type char[] instead of String, to allow applications to null out the array after use so that sensitive information is no longer resident in memory.

When running on Java 6 or higher, the user input is not echoed to the console.After the user enters a password value and presses enter, the call() method is invoked, which prints something like the following:

Interactive options by default cause the application to wait for input on stdin. For commands that need to be run interactively as well as in batch mode, it is useful if the option can optionally consume an argument from the command line.

The default arity for interactive options is zero, meaning that the option takes no parameters. From picocli 3.9.6, interactive options can also take a value from the command line if configured with arity = "0..1". (See Optional Values.)

However, if the password is not specified, the user will be prompted to enter a value. In the following example, the password option has no parameter, so the user will be prompted to type in a value on the console:

A command that combines either of these with an interactive --password option (with the default arity = "0") allows end users to provide a password without specifying it in plain text on the command line. Such a command can be executed both interactively and in batch mode.

Picocli supports POSIX clustered short options:one or more single-character options without option-arguments, followed by at most one option with an option-argument, can be grouped behind one '-' delimiter.

Applications can give a subtle hint to end users that an option is common and encouraged by providing both a short and a long name for an option.Conversely, the absence of a short option can signal that the option is unusual or perhaps should be used with care.

The value of x is false by default, and is set to true (the opposite of the default) if the -x option is specified on the command line.If the -x option is specified multiple times on the command line, the value of x remains true. (Prior to picocli 4.0, the value of x would "toggle" (flip to its opposite) for every -x option on the command line. This can still be configured if required.)

This is enough in most cases, but picocli offers alternatives for applications that need to get the value from something other than the default value. When the option is specified on the command line, the annotated field (or method) is assigned a value, as follows:

For *nix-style long options, aliases have the prefix no- to the given names, for example --no-verbose.For Java JVM-style options like -XX:+PrintGCDetails, the :+ is turned into :- and vice versa.Short option names are not given a negative alias by default. (This is customizable.)

Any command line arguments that are not subcommands or options (or option parameters) are interpreted as positional parameters.Positional parameters generally follow the options but from picocli 2.0, positional parameters can be mixed with options on the command line.

When one of the command line arguments is just two dashes without any characters attached (--),picocli interprets all following arguments as positional parameters, even arguments that match an option name.

From picocli 4.3, an entry for -- can be shown in the options list of the usage help message of a command with the @Command(showEndOfOptionsDelimiterInUsageHelp = true) annotation.See Show End of Options for details.

Starting from v2.1.0, picocli supports "argument files" or "@-files".Argument files are files that themselves contain arguments to the command.When picocli encounters an argument beginning with the character @,it expands the contents of that file into the argument list.

An argument file can include options and positional parameters in any combination.The arguments within a file can be space-separated or newline-separated.If an argument contains embedded whitespace, put the whole argument in double or single quotes.Within quoted values, backslashes need to be escaped with another backslash.

Lines starting with # are comments and are ignored.The comment character can be configured with CommandLine.setAtFileCommentChar(Character),and comments can be switched off by setting the comment character to null.

If the file does not exist, or cannot be read, then the argument will be treated literally, and not removed.Multiple @-files may be specified on the command line. The specified path may be relative (to the current directory) or absolute.

Handling of UTF-8 encoded argument files is tricky on Windows OS with Java up to version 17.Either use -Dfile.encoding=UTF-8 as VM argument or set the environment variable JAVA_TOOL_OPTIONS.So both command calls given below will work on a Windows command line:

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