ui.console #

Chalk

A terminal string colorizer for the V language.

Chalk offers functions:- console.color_fg(text string, color string) - To change the foreground color.

• console.color_bg(text string, color string) - To change the background color.
• console.style(text string, style string) - To change the text style.

Example:

import console

##println('I am really ' + console.color_fg('happy', 'green'))

##println('I am really ' + console.color_fg(console.style('ANGRY', 'bold'), 'red'))

Available colors:- black

• red
• green
• yellow
• blue
• magenta
• cyan
• default
• light_gray
• dark_gray
• light_red
• light_green
• light_yellow
• light_blue
• light_magenta
• light_cyan
• white

Available styles:- bold

• dim
• underline
• blink
• reverse
• hidden

fn clear()

fn color_bg(c BackgroundColor) string

will give ansi codes to change background color . don't forget to call reset to change back to normal

 enum BackgroundColor {
 black         = 40
 red           = 41
 green         = 42
 yellow        = 43
 blue          = 44
 magenta       = 45
 cyan          = 46
 default_color = 49  // 'default' is a reserved keyword in V
 light_gray    = 47
 dark_gray     = 100
 light_red     = 101
 light_green   = 102
 light_yellow  = 103
 light_blue    = 104
 light_magenta = 105
 light_cyan    = 106
 white         = 107
 }

fn color_fg(c ForegroundColor) string

will give ansi codes to change foreground color . don't forget to call reset to change back to normal

 enum ForegroundColor {
    black         = 30
    red           = 31
    green         = 32
    yellow        = 33
    blue          = 34
    magenta       = 35
    cyan          = 36
    default_color = 39 // 'default' is a reserved keyword in V
    light_gray    = 37
    dark_gray     = 90
    light_red     = 91
    light_green   = 92
    light_yellow  = 93
    light_blue    = 94
    light_magenta = 95
    light_cyan    = 96
    white         = 97
 }

fn cprint(args PrintArgs)

print with colors, reset...

    foreground ForegroundColor
    background BackgroundColor
    text string
    style Style
    reset_before bool = true
    reset_after bool = true

fn cprintln(args_ PrintArgs)

fn expand(txt_ string, l int, with string) string

expand text till length l, with string which is normally ' '

fn lf()

line feed

fn new() UIConsole

fn print_array(arr [][]string, delimiter string, sort bool)

print 2 dimensional array, delimeter is between columns

fn print_debug(i IPrintable)

fn print_debug_title(title string, txt string)

fn print_green(txt string)

fn print_header(txt string)

fn print_item(txt string)

fn print_lf(nr int)

fn print_stderr(txt string)

fn print_stdout(txt string)

fn reset() string

fn silent_get() bool

fn silent_set()

fn silent_unset()

fn style(c Style) string

will give ansi codes to change style . don't forget to call reset to change back to normal

 enum Style {
     normal    = 99
     bold      = 1
     dim       = 2
     underline = 4
     blink     = 5
     reverse   = 7
     hidden    = 8
 }

fn trim(c_ string) string

interface IPrintable {}

enum BackgroundColor {
	default_color = 49 // 'default' is a reserved keyword in V	
	black         = 40
	red           = 41
	green         = 42
	yellow        = 43
	blue          = 44
	magenta       = 45
	cyan          = 46
	light_gray    = 47
	dark_gray     = 100
	light_red     = 101
	light_green   = 102
	light_yellow  = 103
	light_blue    = 104
	light_magenta = 105
	light_cyan    = 106
	white         = 107
}

enum ForegroundColor {
	default_color = 39 // 'default' is a reserved keyword in V	
	white         = 97
	black         = 30
	red           = 31
	green         = 32
	yellow        = 33
	blue          = 34
	magenta       = 35
	cyan          = 36
	light_gray    = 37
	dark_gray     = 90
	light_red     = 91
	light_green   = 92
	light_yellow  = 93
	light_blue    = 94
	light_magenta = 95
	light_cyan    = 96
}

enum Style {
	normal    = 99
	bold      = 1
	dim       = 2
	underline = 4
	blink     = 5
	reverse   = 7
	hidden    = 8
}

struct PrintArgs {
pub mut:
	foreground   ForegroundColor
	background   BackgroundColor
	text         string
	style        Style
	reset_before bool = true
	reset_after  bool = true
}

struct UIConsole {
pub mut:
	x_max      int = 80
	y_max      int = 60
	prev_lf    bool
	prev_title bool
	prev_item  bool
}

fn (mut c UIConsole) ask_date(args QuestionArgs) !string

fn (mut c UIConsole) ask_dropdown(args DropDownArgs) !string

will return the string as given as response description string items []string warning string clear bool = true

fn (mut c UIConsole) ask_dropdown_int(args_ DropDownArgs) !int

return the dropdown as an int description string items []string warning string clear bool = true

fn (mut c UIConsole) ask_dropdown_multiple(args_ DropDownArgs) ![]string

result can be multiple, aloso can select all description string items []string warning string clear bool = true

fn (mut c UIConsole) ask_question(args QuestionArgs) !string

args:- description string

• question string
• warning: string (if it goes wrong, which message to use)
• reset bool = true
• regex: to check what result need to be part of
• minlen: min nr of chars

fn (mut c UIConsole) ask_time(args QuestionArgs) !string

fn (mut c UIConsole) ask_yesno(args YesNoArgs) !bool

yes is true, no is false args:- description string

• question string
• warning string
• clear bool = true

fn (mut c UIConsole) reset()

fn (mut c UIConsole) status() string