about summary refs log tree commit diff stats
path: root/ex6.mu
blob: cae98e364e3c29910fc3d98f36290e16fe15aa5b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
# Drawing ASCII text incrementally.
#
# To build a disk image:
#   ./translate ex6.mu             # emits code.img
# To run:
#   qemu-system-i386 code.img
# Or:
#   bochs -f bochsrc               # bochsrc loads code.img
#
# Expected output: a box and text that doesn't overflow it

fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) {
  # drawing text within a bounding box
  draw-box-on-real-screen 0xf, 0x1f, 0x79, 0x51, 0x4
  var x/eax: int <- copy 0x20
  var y/ecx: int <- copy 0x20
  x, y <- draw-text-wrapping-right-then-down screen, "hello ",     0x10/xmin, 0x20/ymin, 0x78/xmax, 0x50/ymax, x, y, 0xa/fg, 0/bg
  x, y <- draw-text-wrapping-right-then-down screen, "from ",      0x10/xmin, 0x20/ymin, 0x78/xmax, 0x50/ymax, x, y, 0xa/fg, 0/bg
  x, y <- draw-text-wrapping-right-then-down screen, "baremetal ", 0x10/xmin, 0x20/ymin, 0x78/xmax, 0x50/ymax, x, y, 0xa/fg, 0/bg
  x, y <- draw-text-wrapping-right-then-down screen, "Mu!",        0x10/xmin, 0x20/ymin, 0x78/xmax, 0x50/ymax, x, y, 0xa/fg, 0/bg

  # drawing at the cursor in multiple directions
  draw-text-wrapping-down-then-right-from-cursor-over-full-screen screen, "abc", 0xa/fg, 0/bg
  draw-text-wrapping-right-then-down-from-cursor-over-full-screen screen, "def", 0xa/fg, 0/bg

  # test drawing near the edge
  x <- draw-text-rightward screen, "R", 0x7f/x, 0x80/xmax=screen-width, 0x18/y, 0xa/fg, 0/bg
  draw-text-wrapping-right-then-down-from-cursor-over-full-screen screen, "wrapped from R", 0xa/fg, 0/bg

  x <- draw-text-downward screen, "D", 0x20/x, 0x2f/y, 0x30/ymax=screen-height, 0xa/fg, 0/bg
  draw-text-wrapping-down-then-right-from-cursor-over-full-screen screen, "wrapped from D", 0xa/fg, 0/bg
}
\n:u' . \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} .rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "RIFLE 1" .TH RIFLE 1 "rifle-1.7.2" "02/24/2016" "rifle manual" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" rifle \- ranger's file opener .SH "SYNOPSIS" .IX Header "SYNOPSIS" \&\fBrifle\fR [\fB\-\-help\fR] [\fB\-f\fR \fI\s-1FLAGS\s0\fR] [\fB\-l\fR] [\fB\-p\fR \fI\s-1KEYWORD\s0\fR] [\fB\-w\fR \fI\s-1PROGRAM\s0\fR] \fIfiles\fR .SH "DESCRIPTION" .IX Header "DESCRIPTION" rifle is a powerful file executor that allows for complex file type checking, written to meet the needs of the file manager \fIranger\fR. rifle's strength lies in automatically determining file types, depending on which programs are installed on the system, even without any user interaction. .SH "OPTIONS" .IX Header "OPTIONS" .IP "\fB\-f\fR \fI\s-1FLAGS\s0\fR" 14 .IX Item "-f FLAGS" Specify flags for opening the files. Flags are letters that changes how the program is executed. Any combination of flags will work. Writing uppercase flags will negate the effect of all previously used lowercase flags of the same letter. .Sp Table of all flags: f fork program to background r run program as root, using sudo t run program in a separate terminal, as specified by \f(CW$TERMCMD\fR .IP "\fB\-l\fR" 14 .IX Item "-l" List all possible ways to open the specified files. Each line will contain information in the format of \fIid:label:flags:command\fR. \fIid\fR is the identification number. \fIlabel\fR is an arbitrary string that was specified for this command, \fIflags\fR are the flags that are used by default, and \fIcommand\fR is the command that is going to be executed. .IP "\fB\-p\fR \fI\s-1KEYWORD\s0\fR" 14 .IX Item "-p KEYWORD" Pick a method to open the files. .Sp \&\fI\s-1KEYWORD\s0\fR is either the \s-1ID\s0 number listed by \f(CW\*(C`rifle \-l\*(C'\fR or a string that matches a label in the configuration file. .IP "\fB\-w\fR \fI\s-1PROGRAM\s0\fR" 14 .IX Item "-w PROGRAM" Open the files with the program \fI\s-1PROGRAM\s0\fR .IP "\fB\-h\fR, \fB\-\-help\fR" 14 .IX Item "-h, --help" Print a list of options and exit. .SH "FILES" .IX Header "FILES" rifle shares configuration files with ranger, though ranger is not required in order to use rifle. The configuration file \fIrifle.conf\fR is expected to be at \&\fI~/.config/ranger/rifle.conf\fR. .PP This file specifies patterns for determining the commands to open files with. The syntax is described in the comments of the default \fIrifle.conf\fR that ships with ranger. To obtain it, you need to run: \f(CW\*(C`ranger \-\-copy\-config=rifle\*(C'\fR .SH "ENVIRONMENT" .IX Header "ENVIRONMENT" .IP "\s-1EDITOR\s0" 8 .IX Item "EDITOR" Determines which editor to use for editing files (in the default \fIrifle.conf\fR). .IP "\s-1PAGER\s0" 8 .IX Item "PAGER" Determines which pager to use for displaying files (in the default \fIrifle.conf\fR). .IP "\s-1TERMCMD\s0" 8 .IX Item "TERMCMD" Determines the terminal emulator command for use with the \fIt\fR flag. It is required that the value is the path to an executable file which accepts the \*(L"\-e \s-1COMMAND\*(R"\s0 argument. .IP "\s-1XDG_CONFIG_HOME\s0" 8 .IX Item "XDG_CONFIG_HOME" Specifies the directory for configuration files. Defaults to \fI\f(CI$HOME\fI/.config\fR. .SH "EXAMPLES" .IX Header "EXAMPLES" List all the different methods: .PP .Vb 4 \& $ rifle \-l helloworld.py \& 0:editor::"$EDITOR" \-\- "$@" \& 1:pager::"$PAGER" \-\- "$@" \& 2:::python \-\- "$1" .Ve .PP Display its content by opening it with \*(L"cat\*(R": .PP .Vb 2 \& $ rifle \-w cat helloworld.py \& print("Hello World!") .Ve .PP Run it by picking the method 2, which calls 'python \*(-- \*(L"$1\*(R"': .PP .Vb 2 \& $ rifle \-p 2 helloworld.py \& Hello World! .Ve .PP Display the file in a pager inside a new terminal, run as root: .PP .Vb 1 \& $ rifle \-p 1 \-f tr helloworld.py .Ve