mirror of
https://github.com/kovidgoyal/kitty
synced 2026-06-06 01:05:48 +02:00
75 lines
2.0 KiB
Go
75 lines
2.0 KiB
Go
// License: GPLv3 Copyright: 2024, Kovid Goyal, <kovid at kovidgoyal.net>
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package pager
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// TODO:
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// Scroll to line when starting
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// Visual mode elect with copy/paste and copy-on-select
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// Mouse based wheel scroll, drag to select, drag scroll, double click to select
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// Hyperlinks: Clicking should delegate to terminal and also allow user to specify action
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// Keyboard hints mode for clicking hyperlinks
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// Display images when used as scrollback pager
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// automatic follow when input is a pipe/tty and on last line like tail -f
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// syntax highlighting using chroma
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import (
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"fmt"
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"os"
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"kitty/tools/cli"
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"kitty/tools/tty"
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)
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var _ = fmt.Print
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var debugprintln = tty.DebugPrintln
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var _ = debugprintln
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type input_line_struct struct {
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line string
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num_carriage_returns int
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is_a_complete_line bool
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err error
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}
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type global_state_struct struct {
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input_file_name string
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opts *Options
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}
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var global_state global_state_struct
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func main(_ *cli.Command, opts_ *Options, args []string) (rc int, err error) {
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global_state.opts = opts_
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input_channel := make(chan input_line_struct, 4096)
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var input_file *os.File
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if len(args) > 1 {
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return 1, fmt.Errorf("Only a single file can be viewed at a time")
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}
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if len(args) == 0 {
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if tty.IsTerminal(os.Stdin.Fd()) {
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return 1, fmt.Errorf("STDIN is a terminal and no filename specified. See --help")
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}
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input_file = os.Stdin
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global_state.input_file_name = "/dev/stdin"
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} else {
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input_file, err = os.Open(args[0])
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if err != nil {
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return 1, err
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}
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if tty.IsTerminal(input_file.Fd()) {
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return 1, fmt.Errorf("%s is a terminal not paging it", args[0])
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}
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global_state.input_file_name = args[0]
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}
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follow := global_state.opts.Follow
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if follow && global_state.input_file_name == "/dev/stdin" {
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follow = false
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}
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go read_input(input_file, global_state.input_file_name, input_channel, follow, global_state.opts.Role == "scrollback")
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return
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}
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func EntryPoint(parent *cli.Command) {
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create_cmd(parent, main)
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}
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