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repl: fix compilation after 6921d46

pull/5997/head
Delyan Angelov 2020-08-27 12:20:31 +03:00
parent 8b3990225a
commit 3b03edd7cb
1 changed files with 327 additions and 330 deletions
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115
vlib/readline/readline_linux.c.v
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@ -1,18 +1,15 @@
// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved. // Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license // Use of this source code is governed by an MIT license
// that can be found in the LICENSE file. // that can be found in the LICENSE file.
// Linux version // Linux version
// Will serve as more advanced input method // Will serve as more advanced input method
// Based on the work of https://github.com/AmokHuginnsson/replxx // Based on the work of https://github.com/AmokHuginnsson/replxx
module readline module readline
import term import term
#include <termios.h> #include <termios.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
// Defines actions to execute // Defines actions to execute
enum Action { enum Action {
eof eof
@ -35,8 +32,10 @@ enum Action {
} }
fn C.tcgetattr() int fn C.tcgetattr() int
fn C.tcsetattr() int fn C.tcsetattr() int
//fn C.ioctl() int
// fn C.ioctl() int
fn C.raise() fn C.raise()
// Enable the raw mode of the terminal // Enable the raw mode of the terminal
@ -49,9 +48,9 @@ pub fn (mut r Readline) enable_raw_mode() {
return return
} }
mut raw := r.orig_termios mut raw := r.orig_termios
raw.c_iflag &= ~( C.BRKINT | C.ICRNL | C.INPCK | C.ISTRIP | C.IXON ) raw.c_iflag &= ~(C.BRKINT | C.ICRNL | C.INPCK | C.ISTRIP | C.IXON)
raw.c_cflag |= ( C.CS8 ) raw.c_cflag |= (C.CS8)
raw.c_lflag &= ~( C.ECHO | C.ICANON | C.IEXTEN | C.ISIG ) raw.c_lflag &= ~(C.ECHO | C.ICANON | C.IEXTEN | C.ISIG)
raw.c_cc[C.VMIN] = 1 raw.c_cc[C.VMIN] = 1
raw.c_cc[C.VTIME] = 0 raw.c_cc[C.VTIME] = 0
C.tcsetattr(0, C.TCSADRAIN, &raw) C.tcsetattr(0, C.TCSADRAIN, &raw)
@ -68,9 +67,9 @@ pub fn (mut r Readline) enable_raw_mode_nosig() {
return return
} }
mut raw := r.orig_termios mut raw := r.orig_termios
raw.c_iflag &= ~( C.BRKINT | C.ICRNL | C.INPCK | C.ISTRIP | C.IXON ) raw.c_iflag &= ~(C.BRKINT | C.ICRNL | C.INPCK | C.ISTRIP | C.IXON)
raw.c_cflag |= ( C.CS8 ) raw.c_cflag |= (C.CS8)
raw.c_lflag &= ~( C.ECHO | C.ICANON | C.IEXTEN ) raw.c_lflag &= ~(C.ECHO | C.ICANON | C.IEXTEN)
raw.c_cc[C.VMIN] = 1 raw.c_cc[C.VMIN] = 1
raw.c_cc[C.VTIME] = 0 raw.c_cc[C.VTIME] = 0
C.tcsetattr(0, C.TCSADRAIN, &raw) C.tcsetattr(0, C.TCSADRAIN, &raw)
@ -104,14 +103,12 @@ pub fn (mut r Readline) read_line_utf8(prompt string) ?ustring {
if r.previous_lines.len <= 1 { if r.previous_lines.len <= 1 {
r.previous_lines << ''.ustring() r.previous_lines << ''.ustring()
r.previous_lines << ''.ustring() r.previous_lines << ''.ustring()
} } else {
else {
r.previous_lines[0] = ''.ustring() r.previous_lines[0] = ''.ustring()
} }
if !r.is_raw { if !r.is_raw {
r.enable_raw_mode() r.enable_raw_mode()
} }
print(r.prompt) print(r.prompt)
for { for {
C.fflush(C.stdout) C.fflush(C.stdout)
@ -121,7 +118,6 @@ pub fn (mut r Readline) read_line_utf8(prompt string) ?ustring {
break break
} }
} }
r.previous_lines[0] = ''.ustring() r.previous_lines[0] = ''.ustring()
r.search_index = 0 r.search_index = 0
r.disable_raw_mode() r.disable_raw_mode()
@ -161,10 +157,10 @@ pub fn read_line(prompt string) ?string {
fn get_prompt_offset(prompt string) int { fn get_prompt_offset(prompt string) int {
mut len := 0 mut len := 0
for i := 0; i < prompt.len; i++ { for i := 0; i < prompt.len; i++ {
if prompt[i] == `\e` { if prompt[i] == `\e` {
for ;i < prompt.len && prompt[i] != `m`; i++ {} for ; i < prompt.len && prompt[i] != `m`; i++ {
}
} else { } else {
len = len + 1 len = len + 1
} }
@ -173,7 +169,7 @@ fn get_prompt_offset(prompt string) int {
} }
fn (r Readline) analyse(c int) Action { fn (r Readline) analyse(c int) Action {
match c { match byte(c) {
`\0` { return .eof } `\0` { return .eof }
0x3 { return .eof } // End of Text 0x3 { return .eof } // End of Text
0x4 { return .eof } // End of Transmission 0x4 { return .eof } // End of Transmission
@ -187,17 +183,20 @@ fn (r Readline) analyse(c int) Action {
1 { return .move_cursor_begining } // ^A 1 { return .move_cursor_begining } // ^A
5 { return .move_cursor_end } // ^E 5 { return .move_cursor_end } // ^E
26 { return .suspend } // CTRL + Z, SUB 26 { return .suspend } // CTRL + Z, SUB
else { return if c >= ` ` { Action.insert_character } else { Action.nothing } } else { return if c >= ` ` {
Action.insert_character
} else {
Action.nothing
} }
} }
} }
fn (r Readline) analyse_control() Action { fn (r Readline) analyse_control() Action {
c := r.read_char() c := r.read_char()
match byte(c) {
match c {
`[` { `[` {
sequence := r.read_char() sequence := r.read_char()
match sequence { match byte(sequence) {
`C` { return .move_cursor_right } `C` { return .move_cursor_right }
`D` { return .move_cursor_left } `D` { return .move_cursor_left }
`B` { return .history_next } `B` { return .history_next }
@ -208,12 +207,10 @@ match c {
else {} else {}
} }
} }
else { } else {}
} }
/*
//TODO
/*
//TODO
match c { match c {
case `[`: case `[`:
sequence := r.read_char() sequence := r.read_char()
@ -232,21 +229,17 @@ match c {
} }
else: else:
} }
*/ */
return .nothing return .nothing
} }
fn (r Readline) analyse_extended_control() Action { fn (r Readline) analyse_extended_control() Action {
r.read_char() // Removes ; r.read_char() // Removes ;
c := r.read_char() c := r.read_char()
match c { match byte(c) {
`5` { `5` {
direction := r.read_char() direction := r.read_char()
match direction { match byte(direction) {
`C` { return .move_cursor_word_right } `C` { return .move_cursor_word_right }
`D` { return .move_cursor_word_left } `D` { return .move_cursor_word_left }
else {} else {}
@ -259,14 +252,12 @@ fn (r Readline) analyse_extended_control() Action {
fn (r Readline) analyse_extended_control_no_eat(last_c byte) Action { fn (r Readline) analyse_extended_control_no_eat(last_c byte) Action {
c := r.read_char() c := r.read_char()
match c { match byte(c) {
`~` { `~` { match last_c {
match last_c {
`3` { return .delete_right } // Suppr key `3` { return .delete_right } // Suppr key
`2` { return .overwrite } `2` { return .overwrite }
else {} else {}
} } }
}
else {} else {}
} }
return .nothing return .nothing
@ -301,27 +292,27 @@ fn get_screen_columns() int {
return cols return cols
} }
fn shift_cursor(xpos int, yoffset int) { fn shift_cursor(xpos, yoffset int) {
if yoffset != 0 { if yoffset != 0 {
if yoffset > 0 { if yoffset > 0 {
term.cursor_down(yoffset) term.cursor_down(yoffset)
} } else {
else { term.cursor_up(-yoffset)
term.cursor_up(- yoffset)
} }
} }
// Absolute X position // Absolute X position
print('\x1b[${xpos + 1}G') print('\x1b[${xpos+1}G')
} }
fn calculate_screen_position(x_in int, y_in int, screen_columns int, char_count int, inp []int) []int { fn calculate_screen_position(x_in, y_in, screen_columns, char_count int, inp []int) []int {
mut out := inp mut out := inp
mut x := x_in mut x := x_in
mut y := y_in mut y := y_in
out[0] = x out[0] = x
out[1] = y out[1] = y
for chars_remaining := char_count; chars_remaining > 0; { for chars_remaining := char_count; chars_remaining > 0; {
chars_this_row := if (x + chars_remaining) < screen_columns { chars_remaining } else { screen_columns - x } chars_this_row := if (x + chars_remaining) < screen_columns { chars_remaining } else { screen_columns -
x }
out[0] = x + chars_this_row out[0] = x + chars_this_row
out[1] = y out[1] = y
chars_remaining -= chars_this_row chars_remaining -= chars_this_row
@ -338,11 +329,12 @@ fn calculate_screen_position(x_in int, y_in int, screen_columns int, char_count
// Will redraw the line // Will redraw the line
fn (mut r Readline) refresh_line() { fn (mut r Readline) refresh_line() {
mut end_of_input := [0, 0] mut end_of_input := [0, 0]
end_of_input = calculate_screen_position(r.prompt.len, 0, get_screen_columns(), r.current.len, end_of_input) end_of_input = calculate_screen_position(r.prompt.len, 0, get_screen_columns(), r.current.len,
end_of_input)
end_of_input[1] += r.current.count('\n'.ustring()) end_of_input[1] += r.current.count('\n'.ustring())
mut cursor_pos := [0, 0] mut cursor_pos := [0, 0]
cursor_pos = calculate_screen_position(r.prompt.len, 0, get_screen_columns(), r.cursor, cursor_pos) cursor_pos = calculate_screen_position(r.prompt.len, 0, get_screen_columns(), r.cursor,
cursor_pos)
shift_cursor(0, -r.cursor_row_offset) shift_cursor(0, -r.cursor_row_offset)
term.erase_toend() term.erase_toend()
print(r.prompt) print(r.prompt)
@ -350,7 +342,7 @@ fn (mut r Readline) refresh_line() {
if end_of_input[0] == 0 && end_of_input[1] > 0 { if end_of_input[0] == 0 && end_of_input[1] > 0 {
print('\n') print('\n')
} }
shift_cursor(cursor_pos[0] - r.prompt_offset, - (end_of_input[1] - cursor_pos[1])) shift_cursor(cursor_pos[0] - r.prompt_offset, -(end_of_input[1] - cursor_pos[1]))
r.cursor_row_offset = cursor_pos[1] r.cursor_row_offset = cursor_pos[1]
} }
@ -366,9 +358,10 @@ fn (mut r Readline) eof() bool {
fn (mut r Readline) insert_character(c int) { fn (mut r Readline) insert_character(c int) {
if !r.overwrite || r.cursor == r.current.len { if !r.overwrite || r.cursor == r.current.len {
r.current = r.current.left(r.cursor).ustring().add( utf32_to_str(u32(c)).ustring() ).add( r.current.right(r.cursor).ustring() ) r.current = r.current.left(r.cursor).ustring().add(utf32_to_str(u32(c)).ustring()).add(r.current.right(r.cursor).ustring())
} else { } else {
r.current = r.current.left(r.cursor).ustring().add( utf32_to_str(u32(c)).ustring() ).add( r.current.right(r.cursor + 1).ustring() ) r.current = r.current.left(r.cursor).ustring().add(utf32_to_str(u32(c)).ustring()).add(r.current.right(r.cursor +
1).ustring())
} }
r.cursor++ r.cursor++
// Refresh the line to add the new character // Refresh the line to add the new character
@ -383,7 +376,7 @@ fn (mut r Readline) delete_character() {
return return
} }
r.cursor-- r.cursor--
r.current = r.current.left(r.cursor).ustring().add( r.current.right(r.cursor + 1).ustring() ) r.current = r.current.left(r.cursor).ustring().add(r.current.right(r.cursor + 1).ustring())
r.refresh_line() r.refresh_line()
} }
@ -392,7 +385,7 @@ fn (mut r Readline) suppr_character() {
if r.cursor > r.current.len { if r.cursor > r.current.len {
return return
} }
r.current = r.current.left(r.cursor).ustring().add( r.current.right(r.cursor + 1).ustring() ) r.current = r.current.left(r.cursor).ustring().add(r.current.right(r.cursor + 1).ustring())
r.refresh_line() r.refresh_line()
} }
@ -400,7 +393,7 @@ fn (mut r Readline) suppr_character() {
fn (mut r Readline) commit_line() bool { fn (mut r Readline) commit_line() bool {
r.previous_lines.insert(1, r.current) r.previous_lines.insert(1, r.current)
a := '\n'.ustring() a := '\n'.ustring()
r.current = r.current.add( a ) r.current = r.current.add(a)
r.cursor = r.current.len r.cursor = r.current.len
if r.is_tty { if r.is_tty {
r.refresh_line() r.refresh_line()
@ -441,16 +434,20 @@ fn (r Readline) is_break_character(c string) bool {
fn (mut r Readline) move_cursor_word_left() { fn (mut r Readline) move_cursor_word_left() {
if r.cursor > 0 { if r.cursor > 0 {
for ; r.cursor > 0 && r.is_break_character(r.current.at(r.cursor - 1)); r.cursor-- {} for ; r.cursor > 0 && r.is_break_character(r.current.at(r.cursor - 1)); r.cursor-- {
for ; r.cursor > 0 && !r.is_break_character(r.current.at(r.cursor - 1)); r.cursor-- {} }
for ; r.cursor > 0 && !r.is_break_character(r.current.at(r.cursor - 1)); r.cursor-- {
}
r.refresh_line() r.refresh_line()
} }
} }
fn (mut r Readline) move_cursor_word_right() { fn (mut r Readline) move_cursor_word_right() {
if r.cursor < r.current.len { if r.cursor < r.current.len {
for ; r.cursor < r.current.len && r.is_break_character(r.current.at(r.cursor)); r.cursor++ {} for ; r.cursor < r.current.len && r.is_break_character(r.current.at(r.cursor)); r.cursor++ {
for ; r.cursor < r.current.len && !r.is_break_character(r.current.at(r.cursor)); r.cursor++ {} }
for ; r.cursor < r.current.len && !r.is_break_character(r.current.at(r.cursor)); r.cursor++ {
}
r.refresh_line() r.refresh_line()
} }
} }