A lot of simplifications... 150 SLOC.
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e55959171e
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048dc14e65
230
xource.c
230
xource.c
@ -10,148 +10,14 @@ It is distributed in the hope that it will be useful or harmful, it really depen
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#include <xolatile/xyntax.c>
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#include <xolatile/xurses.c>
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enum {
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MODE_NONE, MODE_INSERT, MODE_COMMAND,
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MODE_COUNT
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};
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#define CONTROL (0X1F)
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#define ESCAPE (0X1B)
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#define ARROW_UP (0X415B1B)
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#define ARROW_DOWN (0X425B1B)
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#define ARROW_RIGHT (0X435B1B)
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#define ARROW_LEFT (0X445B1B)
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#define BACKSPACE (0X7F)
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static int cursor = 0;
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static int cursor_x = 0;
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static int cursor_y = 0;
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static int mode_active = MODE_INSERT;
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static void append_character (void) {
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int offset = 0;
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++file_list_size [file_list_active];
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file_list_data [file_list_active] = reallocate (file_list_data [file_list_active], file_list_size [file_list_active]);
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for (offset = file_list_size [file_list_active] - 1; offset != cursor; --offset) {
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file_list_data [file_list_active] [offset] = file_list_data [file_list_active] [offset - 1];
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}
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file_list_data [file_list_active] [cursor] = curses_character;
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++cursor;
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}
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static void remove_character (void) {
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int offset = 0;
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if (cursor == 0) {
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return;
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}
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--file_list_size [file_list_active];
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for (offset = cursor - 1; offset != file_list_size [file_list_active] - 1; ++offset) {
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file_list_data [file_list_active] [offset] = file_list_data [file_list_active] [offset + 1];
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}
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--cursor;
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}
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static void cursor_limits (void) {
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if (cursor <= -1) {
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cursor = 0;
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}
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if (cursor >= file_list_size [file_list_active]) {
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cursor = file_list_size [file_list_active] - 1;
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}
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}
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static void mode_switch (void);
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static void mode_none (void) {
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curses_bind (SIGNAL_ESCAPE, mode_switch);
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}
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static void mode_insert (void) {
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int signal;
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for (signal = SIGNAL_A; signal != SIGNAL_COUNT; ++signal) {
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if ((signal == SIGNAL_ESCAPE) || (signal == SIGNAL_BACKSPACE) || (signal == SIGNAL_CAPS_LOCK)) {
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continue;
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}
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curses_bind (signal, append_character);
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curses_bind (signal | SIGNAL_SHIFT, append_character);
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}
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curses_bind (SIGNAL_ESCAPE, mode_switch);
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curses_bind (SIGNAL_BACKSPACE, remove_character);
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}
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static void mode_command (void) {
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curses_bind (SIGNAL_ESCAPE, mode_switch);
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}
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static void mode_switch (void) {
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curses_action = deallocate (curses_action);
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curses_activator = deallocate (curses_activator);
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curses_action_count = 0;
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mode_active += 1;
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mode_active %= MODE_COUNT;
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switch (mode_active) {
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case MODE_INSERT: mode_insert (); break;
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case MODE_COMMAND: mode_command (); break;
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default: mode_none (); break;
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}
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curses_bind (SIGNAL_ESCAPE | SIGNAL_SHIFT, curses_exit);
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mode_active = mode_active;
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}
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static void render_status_bar (void) {
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char status_bar [] = " Xource : C = Xolatile's text editor";
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int offset;
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curses_render_string (status_bar, mode_active, EFFECT_REVERSE, 0, 0);
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for (offset = string_length (status_bar); offset != curses_screen_width; ++offset) {
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curses_render_string (" ", mode_active, EFFECT_REVERSE, offset, 0);
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}
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for (offset = 1; offset != curses_screen_height; ++offset) {
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curses_render_string (string_realign (number_to_string (offset), 4, ' '), mode_active, EFFECT_REVERSE, 0, offset);
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}
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}
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static void render_source_code (void) {
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int offset, select, length;
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cursor_x = curses_realign_x = 5;
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cursor_y = curses_realign_y = 1;
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for (offset = 0; file_list_data [file_list_active] [offset] != '\0'; offset += length) {
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if (cursor_y > curses_screen_height - 2) {
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break;
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}
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select = syntax_select (& file_list_data [file_list_active] [offset], & length);
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if (select >= syntax_count) {
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curses_render_string_point (& file_list_data [file_list_active] [offset], length, COLOUR_WHITE, EFFECT_NORMAL, & cursor_x, & cursor_y);
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} else {
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curses_render_string_point (& file_list_data [file_list_active] [offset], length, syntax_colour [select], syntax_effect [select], & cursor_x, & cursor_y);
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}
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}
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if (cursor_y < curses_screen_height) {
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for (offset = ++cursor_y; offset != curses_screen_height; ++offset) {
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curses_render_string (" ~", mode_active, EFFECT_REVERSE, 0, offset);
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}
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}
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}
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#include <stdio.h>
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int main (int argc, char * * argv) {
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char * separators = ".,:;<=>+-*/%!&~^?|()[]{}'\" \t\r\n";
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@ -162,6 +28,10 @@ int main (int argc, char * * argv) {
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"char", "short", "int", "long", "signed", "unsigned", "float", "double"
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};
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int cursor = 0;
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int cursor_x = 0;
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int cursor_y = 0;
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if (argc == 2) {
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file_list_import (argv [1]);
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} else {
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@ -184,49 +54,91 @@ int main (int argc, char * * argv) {
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curses_configure ();
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/*mode_switch ();*/
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do {
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char status_bar [] = " Xource : C = Xolatile's text editor";
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int offset, select, length;
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curses_render_background (' ', COLOUR_WHITE, EFFECT_NORMAL);
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render_status_bar ();
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render_source_code ();
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curses_render_string (status_bar, COLOUR_WHITE, EFFECT_REVERSE, 0, 0);
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curses_render_cursor (cursor_x, cursor_y);
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for (offset = string_length (status_bar); offset != curses_screen_width; ++offset) {
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curses_render_string (" ", COLOUR_WHITE, EFFECT_REVERSE, offset, 0);
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}
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curses_synchronize ();
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for (offset = 1; offset != curses_screen_height; ++offset) {
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curses_render_string (string_realign (number_to_string (offset), 4, ' '), COLOUR_WHITE, EFFECT_REVERSE, 0, offset);
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}
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cursor_x = curses_realign_x = 5;
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cursor_y = curses_realign_y = 1;
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for (offset = 0; file_list_data [file_list_active] [offset] != '\0'; offset += length) {
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if (cursor_y > curses_screen_height - 2) {
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break;
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}
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select = syntax_select (& file_list_data [file_list_active] [offset], & length);
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if (select >= syntax_count) {
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curses_render_string_point (& file_list_data [file_list_active] [offset], length, COLOUR_WHITE, EFFECT_NORMAL, & cursor_x, & cursor_y);
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} else {
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curses_render_string_point (& file_list_data [file_list_active] [offset], length, syntax_colour [select], syntax_effect [select], & cursor_x, & cursor_y);
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}
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}
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if (cursor_y < curses_screen_height) {
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for (offset = ++cursor_y; offset != curses_screen_height; ++offset) {
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curses_render_string (" ~", COLOUR_WHITE, EFFECT_REVERSE, 0, offset);
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}
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}
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cursor_y = character_count (file_list_data [file_list_active], 0, cursor, '\n', '\0');
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cursor_x = character_count (file_list_data [file_list_active], cursor, 0, '\0', '\n');
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/*
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dump ("a.log", number_to_string (curses_character));
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dump ("a.log", " xx ");
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dump ("a.log", number_to_string (cursor_x));
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dump ("a.log", " yy ");
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dump ("a.log", number_to_string (cursor_y));
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dump ("a.log", "\n");
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*/
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if (curses_character == ('Q' & 0X1F)) {
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curses_render_cursor (cursor_x + curses_realign_x + 1, cursor_y + curses_realign_y + 1);
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curses_synchronize ();
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if (curses_character == ('Q' & CONTROL)) {
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curses_active = 0;
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} else if (curses_character == '\r') {
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append_character ();
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} else if (curses_character == ('S' & 0X1F)) {
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file_list_insert_character ('\n', cursor);
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++cursor;
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} else if (curses_character == ('S' & CONTROL)) {
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file_list_export (file_list_name [file_list_active]);
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} else if (curses_character == (char) 127) {
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remove_character ();
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} else if (curses_character == 0X415B1B) {
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} else if (curses_character == BACKSPACE) {
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file_list_remove_character (cursor);
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--cursor;
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} else if (curses_character == ARROW_UP) {
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do {
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--cursor;
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} while ((cursor >= 0) && (file_list_data [file_list_active] [cursor] != '\n') && (file_list_data [file_list_active] [cursor] != '\0'));
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--cursor;
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} else if (curses_character == 0X425B1B) {
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} else if (curses_character == ARROW_DOWN) {
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do {
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++cursor;
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} while ((cursor <= file_list_size [file_list_active] - 1) && (file_list_data [file_list_active] [cursor] != '\n') && (file_list_data [file_list_active] [cursor] != '\0'));
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++cursor;
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} else if (curses_character == 0X435B1B) {
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} else if (curses_character == ARROW_RIGHT) {
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++cursor;
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} else if (curses_character == 0X445B1B) {
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} else if (curses_character == ARROW_LEFT) {
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--cursor;
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} else if ((curses_character >= ' ') && (curses_character <= '~')) {
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append_character ();
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file_list_insert_character (curses_character, cursor);
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++cursor;
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} else {
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continue;
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}
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cursor_limits ();
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limit (& cursor, 0, file_list_size [file_list_active] - 1);
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} while (curses_active != 0);
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file_list_delete ();
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