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104 lines
3.0 KiB
Markdown
104 lines
3.0 KiB
Markdown
# Termtables
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[](https://travis-ci.org/apcera/termtables)
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A [Go](http://golang.org) port of the Ruby library [terminal-tables](https://github.com/visionmedia/terminal-table) for
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fast and simple ASCII table generation.
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## Installation
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```bash
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go get github.com/apcera/termtables
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```
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## Go Style Documentation
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[http://godoc.org/github.com/apcera/termtables](http://godoc.org/github.com/apcera/termtables)
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## APC Command Line usage
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`--markdown` — output a markdown table, e.g. `apc app list --markdown`
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`--html` — output an html table, e.g. `apc app list --html`
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`--ascii` — output an ascii table, e.g. `apc app list --ascii`
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## Basic Usage
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```go
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package main
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import (
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"fmt"
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"github.com/apcera/termtables"
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)
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func main() {
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table := termtables.CreateTable()
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table.AddHeaders("Name", "Age")
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table.AddRow("John", "30")
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table.AddRow("Sam", 18)
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table.AddRow("Julie", 20.14)
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fmt.Println(table.Render())
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}
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```
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Result:
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```
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+-------+-------+
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| Name | Age |
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+-------+-------+
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| John | 30 |
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| Sam | 18 |
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| Julie | 20.14 |
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+-------+-------+
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```
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## Advanced Usage
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The package function-call `EnableUTF8()` will cause any tables created after
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that point to use Unicode box-drawing characters for the table lines.
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Calling `EnableUTF8PerLocale()` uses the C library's locale functionality to
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determine if the current locale environment variables say that the current
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character map is UTF-8. If, and only if, so, then `EnableUTF8()` will be
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called.
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Calling `SetModeHTML(true)` will cause any tables created after that point
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to be emitted in HTML, while `SetModeMarkdown(true)` will trigger Markdown.
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Neither should result in changes to later API to get the different results;
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the primary intended use-case is extracting the same table, but for
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documentation.
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The table method `.AddSeparator()` inserts a rule line in the output. This
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only applies in normal terminal output mode.
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The table method `.AddTitle()` adds a title to the table; in terminal output,
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this is an initial row; in HTML, it's a caption. In Markdown, it's a line of
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text before the table, prefixed by `Table: `.
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The table method `.SetAlign()` takes an alignment and a column number
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(indexing starts at 1) and changes all _current_ cells in that column to have
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the given alignment. It does not change the alignment of cells added to the
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table after this call. Alignment is only stored on a per-cell basis.
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## Known Issues
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Normal output:
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* `.SetAlign()` does not affect headers.
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Markdown output mode:
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* When emitting Markdown, the column markers are not re-flowed if a vertical
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bar is an element of a cell, causing an escape to take place; since Markdown
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is often converted to HTML, this only affects text viewing.
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* A title in Markdown is not escaped against all possible forms of Markdown
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markup (to avoid adding a dependency upon a Markdown library, as supported
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syntax can vary).
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* Markdown requires headers, so a dummy header will be inserted if needed.
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* Table alignment is not reflected in Markdown output.
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