725 lines
24 KiB
Rust
725 lines
24 KiB
Rust
// examples/validation_patterns_tui.rs
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//! TUI Example demonstrating position-based pattern filtering
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//!
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//! Run with: cargo run --example validation_patterns_tui --features "validation,gui"
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// REQUIRE validation and gui features - example won't compile without them
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#[cfg(not(all(feature = "validation", feature = "gui")))]
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compile_error!(
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"This example requires the 'validation' and 'gui' features. \
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Run with: cargo run --example validation_patterns_tui --features \"validation,gui\""
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);
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use std::io;
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use canvas::ValidationResult;
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use crossterm::{
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event::{
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self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyModifiers,
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},
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execute,
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terminal::{
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disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen,
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},
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};
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use ratatui::{
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backend::{Backend, CrosstermBackend},
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layout::{Constraint, Direction, Layout, Rect},
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style::{Color, Style},
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text::{Line, Span},
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widgets::{Block, Borders, Paragraph, Wrap},
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Frame, Terminal,
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};
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use canvas::{
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canvas::{
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gui::render_canvas_default,
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modes::AppMode,
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},
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DataProvider, FormEditor,
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ValidationConfig, ValidationConfigBuilder, PatternFilters, PositionFilter, PositionRange, CharacterFilter,
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};
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// Enhanced FormEditor for pattern validation demonstration
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struct PatternValidationFormEditor<D: DataProvider> {
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editor: FormEditor<D>,
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debug_message: String,
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command_buffer: String,
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validation_enabled: bool,
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field_switch_blocked: bool,
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block_reason: Option<String>,
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}
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impl<D: DataProvider> PatternValidationFormEditor<D> {
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fn new(data_provider: D) -> Self {
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let mut editor = FormEditor::new(data_provider);
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// Enable validation by default
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editor.set_validation_enabled(true);
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Self {
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editor,
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debug_message: "🔍 Pattern Validation Demo - Try typing in different fields!".to_string(),
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command_buffer: String::new(),
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validation_enabled: true,
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field_switch_blocked: false,
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block_reason: None,
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}
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}
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// === COMMAND BUFFER HANDLING ===
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fn clear_command_buffer(&mut self) {
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self.command_buffer.clear();
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}
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fn add_to_command_buffer(&mut self, ch: char) {
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self.command_buffer.push(ch);
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}
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fn get_command_buffer(&self) -> &str {
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&self.command_buffer
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}
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fn has_pending_command(&self) -> bool {
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!self.command_buffer.is_empty()
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}
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// === VALIDATION CONTROL ===
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fn toggle_validation(&mut self) {
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self.validation_enabled = !self.validation_enabled;
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self.editor.set_validation_enabled(self.validation_enabled);
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if self.validation_enabled {
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self.debug_message = "✅ Pattern Validation ENABLED".to_string();
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} else {
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self.debug_message = "❌ Pattern Validation DISABLED".to_string();
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}
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}
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// === MOVEMENT ===
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fn move_left(&mut self) {
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self.editor.move_left();
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self.field_switch_blocked = false;
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self.block_reason = None;
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}
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fn move_right(&mut self) {
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self.editor.move_right();
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self.field_switch_blocked = false;
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self.block_reason = None;
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}
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fn move_up(&mut self) {
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match self.editor.move_up() {
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Ok(()) => {
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self.update_field_validation_status();
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self.field_switch_blocked = false;
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self.block_reason = None;
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}
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Err(e) => {
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self.field_switch_blocked = true;
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self.block_reason = Some(e.to_string());
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self.debug_message = format!("🚫 Field switch blocked: {}", e);
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}
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}
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}
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fn move_down(&mut self) {
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match self.editor.move_down() {
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Ok(()) => {
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self.update_field_validation_status();
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self.field_switch_blocked = false;
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self.block_reason = None;
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}
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Err(e) => {
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self.field_switch_blocked = true;
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self.block_reason = Some(e.to_string());
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self.debug_message = format!("🚫 Field switch blocked: {}", e);
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}
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}
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}
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fn move_line_start(&mut self) {
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self.editor.move_line_start();
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}
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fn move_line_end(&mut self) {
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self.editor.move_line_end();
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}
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// === MODE TRANSITIONS ===
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fn enter_edit_mode(&mut self) {
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self.editor.enter_edit_mode();
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self.debug_message = "✏️ INSERT MODE - Type to test pattern validation".to_string();
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}
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fn enter_append_mode(&mut self) {
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self.editor.enter_append_mode();
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self.debug_message = "✏️ INSERT (append) - Pattern validation active".to_string();
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}
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fn exit_edit_mode(&mut self) {
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self.editor.exit_edit_mode();
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self.debug_message = "🔒 NORMAL MODE".to_string();
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self.update_field_validation_status();
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}
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fn insert_char(&mut self, ch: char) -> anyhow::Result<()> {
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let result = self.editor.insert_char(ch);
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if result.is_ok() {
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// Show real-time validation feedback
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if let Some(validation_result) = self.editor.current_field_validation() {
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match validation_result {
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ValidationResult::Valid => {
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self.debug_message = "✅ Valid character".to_string();
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}
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ValidationResult::Warning { message } => {
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self.debug_message = format!("⚠️ Warning: {}", message);
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}
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ValidationResult::Error { message } => {
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self.debug_message = format!("❌ Error: {}", message);
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}
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}
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}
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}
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Ok(result?)
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}
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// === DELETE OPERATIONS ===
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fn delete_backward(&mut self) -> anyhow::Result<()> {
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let result = self.editor.delete_backward();
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if result.is_ok() {
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self.debug_message = "⌫ Deleted character".to_string();
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}
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Ok(result?)
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}
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fn delete_forward(&mut self) -> anyhow::Result<()> {
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let result = self.editor.delete_forward();
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if result.is_ok() {
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self.debug_message = "⌦ Deleted character".to_string();
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}
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Ok(result?)
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}
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// === DELEGATE TO ORIGINAL EDITOR ===
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fn current_field(&self) -> usize {
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self.editor.current_field()
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}
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fn cursor_position(&self) -> usize {
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self.editor.cursor_position()
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}
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fn mode(&self) -> AppMode {
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self.editor.mode()
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}
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fn current_text(&self) -> &str {
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self.editor.current_text()
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}
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fn data_provider(&self) -> &D {
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self.editor.data_provider()
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}
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fn ui_state(&self) -> &canvas::EditorState {
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self.editor.ui_state()
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}
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fn set_mode(&mut self, mode: AppMode) {
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self.editor.set_mode(mode);
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}
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fn next_field(&mut self) {
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match self.editor.next_field() {
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Ok(()) => {
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self.update_field_validation_status();
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self.field_switch_blocked = false;
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self.block_reason = None;
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}
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Err(e) => {
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self.field_switch_blocked = true;
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self.block_reason = Some(e.to_string());
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self.debug_message = format!("🚫 Cannot move to next field: {}", e);
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}
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}
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}
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fn prev_field(&mut self) {
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match self.editor.prev_field() {
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Ok(()) => {
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self.update_field_validation_status();
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self.field_switch_blocked = false;
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self.block_reason = None;
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}
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Err(e) => {
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self.field_switch_blocked = true;
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self.block_reason = Some(e.to_string());
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self.debug_message = format!("🚫 Cannot move to previous field: {}", e);
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}
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}
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}
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// === STATUS AND DEBUG ===
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fn set_debug_message(&mut self, msg: String) {
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self.debug_message = msg;
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}
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fn debug_message(&self) -> &str {
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&self.debug_message
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}
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fn update_field_validation_status(&mut self) {
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if !self.validation_enabled {
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return;
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}
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if let Some(result) = self.editor.current_field_validation() {
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match result {
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ValidationResult::Valid => {
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self.debug_message = format!("Field {}: ✅ Valid", self.editor.current_field() + 1);
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}
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ValidationResult::Warning { message } => {
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self.debug_message = format!("Field {}: ⚠️ {}", self.editor.current_field() + 1, message);
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}
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ValidationResult::Error { message } => {
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self.debug_message = format!("Field {}: ❌ {}", self.editor.current_field() + 1, message);
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}
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}
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} else {
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self.debug_message = format!("Field {}: 🔍 Not validated yet", self.editor.current_field() + 1);
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}
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}
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fn get_validation_status(&self) -> String {
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if !self.validation_enabled {
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return "❌ DISABLED".to_string();
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}
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if self.field_switch_blocked {
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return "🚫 SWITCH BLOCKED".to_string();
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}
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let summary = self.editor.validation_summary();
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if summary.has_errors() {
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format!("❌ {} ERRORS", summary.error_fields)
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} else if summary.has_warnings() {
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format!("⚠️ {} WARNINGS", summary.warning_fields)
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} else if summary.validated_fields > 0 {
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format!("✅ {} VALID", summary.valid_fields)
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} else {
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"🔍 READY".to_string()
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}
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}
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}
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// Demo form with pattern-based validation
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struct PatternValidationData {
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fields: Vec<(String, String)>,
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}
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impl PatternValidationData {
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fn new() -> Self {
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Self {
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fields: vec![
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("🚗 License Plate (AB123)".to_string(), "".to_string()),
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("📞 Phone (123-456-7890)".to_string(), "".to_string()),
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("💳 Credit Card (1234-5678-9012-3456)".to_string(), "".to_string()),
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("🆔 Custom ID (AB123def)".to_string(), "".to_string()),
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],
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}
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}
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}
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impl DataProvider for PatternValidationData {
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fn field_count(&self) -> usize {
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self.fields.len()
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}
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fn field_name(&self, index: usize) -> &str {
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&self.fields[index].0
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}
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fn field_value(&self, index: usize) -> &str {
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&self.fields[index].1
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}
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fn set_field_value(&mut self, index: usize, value: String) {
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self.fields[index].1 = value;
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}
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// Pattern validation configuration per field
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fn validation_config(&self, field_index: usize) -> Option<ValidationConfig> {
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match field_index {
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0 => {
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// License plate: AB123 (2 letters, 3 numbers)
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let license_plate_pattern = PatternFilters::new()
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.add_filter(PositionFilter::new(
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PositionRange::Range(0, 1),
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CharacterFilter::Alphabetic,
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))
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.add_filter(PositionFilter::new(
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PositionRange::Range(2, 4),
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CharacterFilter::Numeric,
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));
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Some(ValidationConfigBuilder::new()
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.with_pattern_filters(license_plate_pattern)
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.build())
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}
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1 => {
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// Phone number: 123-456-7890
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let phone_pattern = PatternFilters::new()
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.add_filter(PositionFilter::new(
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PositionRange::Multiple(vec![0,1,2,4,5,6,8,9,10,11]),
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CharacterFilter::Numeric,
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))
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.add_filter(PositionFilter::new(
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PositionRange::Multiple(vec![3, 7]),
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CharacterFilter::Exact('-'),
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));
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Some(ValidationConfigBuilder::new()
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.with_pattern_filters(phone_pattern)
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.build())
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}
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2 => {
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// Credit card: 1234-5678-9012-3456
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let credit_card_pattern = PatternFilters::new()
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.add_filter(PositionFilter::new(
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PositionRange::Multiple(vec![0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18]),
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CharacterFilter::Numeric,
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))
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.add_filter(PositionFilter::new(
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PositionRange::Multiple(vec![4, 9, 14]),
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CharacterFilter::Exact('-'),
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));
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Some(ValidationConfigBuilder::new()
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.with_pattern_filters(credit_card_pattern)
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.build())
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}
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3 => {
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// Custom ID: First 2 letters, rest alphanumeric
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let custom_id_pattern = PatternFilters::new()
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.add_filter(PositionFilter::new(
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PositionRange::Range(0, 1),
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CharacterFilter::Alphabetic,
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))
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.add_filter(PositionFilter::new(
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PositionRange::From(2),
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CharacterFilter::Alphanumeric,
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));
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Some(ValidationConfigBuilder::new()
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.with_pattern_filters(custom_id_pattern)
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.build())
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}
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_ => None,
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}
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}
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}
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/// Handle key presses with pattern validation commands
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fn handle_key_press(
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key: KeyCode,
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modifiers: KeyModifiers,
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editor: &mut PatternValidationFormEditor<PatternValidationData>,
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) -> anyhow::Result<bool> {
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let mode = editor.mode();
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// Quit handling
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if (key == KeyCode::Char('q') && modifiers.contains(KeyModifiers::CONTROL))
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|| (key == KeyCode::Char('c') && modifiers.contains(KeyModifiers::CONTROL))
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|| key == KeyCode::F(10)
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{
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return Ok(false);
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}
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match (mode, key, modifiers) {
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// === MODE TRANSITIONS ===
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(AppMode::ReadOnly, KeyCode::Char('i'), _) => {
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editor.enter_edit_mode();
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editor.clear_command_buffer();
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}
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(AppMode::ReadOnly, KeyCode::Char('a'), _) => {
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editor.enter_append_mode();
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editor.clear_command_buffer();
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}
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(AppMode::ReadOnly, KeyCode::Char('A'), _) => {
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editor.move_line_end();
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editor.enter_edit_mode();
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editor.clear_command_buffer();
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}
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// Escape: Exit edit mode
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(_, KeyCode::Esc, _) => {
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if mode == AppMode::Edit {
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editor.exit_edit_mode();
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} else {
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editor.clear_command_buffer();
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}
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}
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// === VALIDATION COMMANDS ===
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(AppMode::ReadOnly, KeyCode::F(1), _) => {
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editor.toggle_validation();
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}
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// === MOVEMENT ===
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(AppMode::ReadOnly, KeyCode::Char('h'), _) | (AppMode::ReadOnly, KeyCode::Left, _) => {
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editor.move_left();
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editor.clear_command_buffer();
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}
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(AppMode::ReadOnly, KeyCode::Char('l'), _) | (AppMode::ReadOnly, KeyCode::Right, _) => {
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editor.move_right();
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editor.clear_command_buffer();
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}
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(AppMode::ReadOnly, KeyCode::Char('j'), _) | (AppMode::ReadOnly, KeyCode::Down, _) => {
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editor.move_down();
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editor.clear_command_buffer();
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}
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(AppMode::ReadOnly, KeyCode::Char('k'), _) | (AppMode::ReadOnly, KeyCode::Up, _) => {
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editor.move_up();
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editor.clear_command_buffer();
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}
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// === EDIT MODE MOVEMENT ===
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(AppMode::Edit, KeyCode::Left, _) => {
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editor.move_left();
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}
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(AppMode::Edit, KeyCode::Right, _) => {
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editor.move_right();
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}
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(AppMode::Edit, KeyCode::Up, _) => {
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editor.move_up();
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}
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(AppMode::Edit, KeyCode::Down, _) => {
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editor.move_down();
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}
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// === DELETE OPERATIONS ===
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(AppMode::Edit, KeyCode::Backspace, _) => {
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editor.delete_backward()?;
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}
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(AppMode::Edit, KeyCode::Delete, _) => {
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editor.delete_forward()?;
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}
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// === TAB NAVIGATION ===
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(_, KeyCode::Tab, _) => {
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editor.next_field();
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}
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(_, KeyCode::BackTab, _) => {
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editor.prev_field();
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}
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// === CHARACTER INPUT ===
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(AppMode::Edit, KeyCode::Char(c), m) if !m.contains(KeyModifiers::CONTROL) => {
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editor.insert_char(c)?;
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}
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// === DEBUG/INFO COMMANDS ===
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(AppMode::ReadOnly, KeyCode::Char('?'), _) => {
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let summary = editor.editor.validation_summary();
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editor.set_debug_message(format!(
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"Field {}/{}, Pos {}, Mode: {:?}, Validation: {} fields configured, {} validated",
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editor.current_field() + 1,
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editor.data_provider().field_count(),
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editor.cursor_position(),
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editor.mode(),
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summary.total_fields,
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summary.validated_fields
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));
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}
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_ => {
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if editor.has_pending_command() {
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editor.clear_command_buffer();
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editor.set_debug_message("Invalid command sequence".to_string());
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}
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}
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|
}
|
|
|
|
Ok(true)
|
|
}
|
|
|
|
fn run_app<B: Backend>(
|
|
terminal: &mut Terminal<B>,
|
|
mut editor: PatternValidationFormEditor<PatternValidationData>,
|
|
) -> io::Result<()> {
|
|
loop {
|
|
terminal.draw(|f| ui(f, &editor))?;
|
|
|
|
if let Event::Key(key) = event::read()? {
|
|
match handle_key_press(key.code, key.modifiers, &mut editor) {
|
|
Ok(should_continue) => {
|
|
if !should_continue {
|
|
break;
|
|
}
|
|
}
|
|
Err(e) => {
|
|
editor.set_debug_message(format!("Error: {}", e));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
fn ui(f: &mut Frame, editor: &PatternValidationFormEditor<PatternValidationData>) {
|
|
let chunks = Layout::default()
|
|
.direction(Direction::Vertical)
|
|
.constraints([Constraint::Min(8), Constraint::Length(12)])
|
|
.split(f.area());
|
|
|
|
render_enhanced_canvas(f, chunks[0], editor);
|
|
render_validation_status(f, chunks[1], editor);
|
|
}
|
|
|
|
fn render_enhanced_canvas(
|
|
f: &mut Frame,
|
|
area: Rect,
|
|
editor: &PatternValidationFormEditor<PatternValidationData>,
|
|
) {
|
|
render_canvas_default(f, area, &editor.editor);
|
|
}
|
|
|
|
fn render_validation_status(
|
|
f: &mut Frame,
|
|
area: Rect,
|
|
editor: &PatternValidationFormEditor<PatternValidationData>,
|
|
) {
|
|
let chunks = Layout::default()
|
|
.direction(Direction::Vertical)
|
|
.constraints([
|
|
Constraint::Length(3), // Status bar
|
|
Constraint::Length(4), // Validation summary
|
|
Constraint::Length(5), // Help
|
|
])
|
|
.split(area);
|
|
|
|
// Status bar with validation information
|
|
let mode_text = match editor.mode() {
|
|
AppMode::Edit => "INSERT",
|
|
AppMode::ReadOnly => "NORMAL",
|
|
_ => "OTHER",
|
|
};
|
|
|
|
let validation_status = editor.get_validation_status();
|
|
let status_text = if editor.has_pending_command() {
|
|
format!("-- {} -- {} [{}] | Pattern Validation: {}",
|
|
mode_text, editor.debug_message(), editor.get_command_buffer(), validation_status)
|
|
} else {
|
|
format!("-- {} -- {} | Pattern Validation: {}",
|
|
mode_text, editor.debug_message(), validation_status)
|
|
};
|
|
|
|
let status = Paragraph::new(Line::from(Span::raw(status_text)))
|
|
.block(Block::default().borders(Borders::ALL).title("🔍 Pattern Validation Status"));
|
|
|
|
f.render_widget(status, chunks[0]);
|
|
|
|
// Validation summary with field switching info
|
|
let summary = editor.editor.validation_summary();
|
|
let summary_text = if editor.validation_enabled {
|
|
let switch_info = if editor.field_switch_blocked {
|
|
format!("\n🚫 Field switching blocked: {}",
|
|
editor.block_reason.as_deref().unwrap_or("Unknown reason"))
|
|
} else {
|
|
"\n✅ Field switching allowed".to_string()
|
|
};
|
|
|
|
format!(
|
|
"📊 Pattern Validation Summary: {} fields configured, {} validated{}\n\
|
|
✅ Valid: {} ⚠️ Warnings: {} ❌ Errors: {} 📈 Progress: {:.0}%",
|
|
summary.total_fields,
|
|
summary.validated_fields,
|
|
switch_info,
|
|
summary.valid_fields,
|
|
summary.warning_fields,
|
|
summary.error_fields,
|
|
summary.completion_percentage() * 100.0
|
|
)
|
|
} else {
|
|
"❌ Pattern validation is currently DISABLED\nPress F1 to enable validation".to_string()
|
|
};
|
|
|
|
let summary_style = if summary.has_errors() {
|
|
Style::default().fg(Color::Red)
|
|
} else if summary.has_warnings() {
|
|
Style::default().fg(Color::Yellow)
|
|
} else {
|
|
Style::default().fg(Color::Green)
|
|
};
|
|
|
|
let validation_summary = Paragraph::new(summary_text)
|
|
.block(Block::default().borders(Borders::ALL).title("📈 Pattern Validation Overview"))
|
|
.style(summary_style)
|
|
.wrap(Wrap { trim: true });
|
|
|
|
f.render_widget(validation_summary, chunks[1]);
|
|
|
|
// Pattern-specific help text
|
|
let help_text = match editor.mode() {
|
|
AppMode::ReadOnly => {
|
|
"🔍 PATTERN VALIDATION DEMO: Each field has specific character patterns!\n\
|
|
License Plate: 2 letters + 3 numbers (AB123)\n\
|
|
Phone: Numbers with dashes at positions 3 and 7 (123-456-7890)\n\
|
|
Credit Card: Number groups separated by dashes (1234-5678-9012-3456)\n\
|
|
Custom ID: 2 letters + alphanumeric (AB123def)\n\
|
|
Movement: hjkl/arrows=move, Tab/Shift+Tab=fields, i/a=insert, F1=toggle validation"
|
|
}
|
|
AppMode::Edit => {
|
|
"✏️ INSERT MODE - Type to test pattern validation!\n\
|
|
Pattern validation will reject characters that don't match the expected pattern\n\
|
|
arrows=move, Backspace/Del=delete, Esc=normal, Tab=next field"
|
|
}
|
|
_ => "🔍 Pattern Validation Demo Active!"
|
|
};
|
|
|
|
let help = Paragraph::new(help_text)
|
|
.block(Block::default().borders(Borders::ALL).title("🚀 Pattern Validation Commands"))
|
|
.style(Style::default().fg(Color::Gray))
|
|
.wrap(Wrap { trim: true });
|
|
|
|
f.render_widget(help, chunks[2]);
|
|
}
|
|
|
|
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
|
// Print feature status
|
|
println!("🔍 Canvas Pattern Validation TUI Demo");
|
|
println!("✅ validation feature: ENABLED");
|
|
println!("✅ gui feature: ENABLED");
|
|
println!("🚀 Pattern-based validation: ACTIVE");
|
|
println!("📊 Try typing in fields with different patterns!");
|
|
println!();
|
|
|
|
enable_raw_mode()?;
|
|
let mut stdout = io::stdout();
|
|
execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
|
|
let backend = CrosstermBackend::new(stdout);
|
|
let mut terminal = Terminal::new(backend)?;
|
|
|
|
let data = PatternValidationData::new();
|
|
let editor = PatternValidationFormEditor::new(data);
|
|
|
|
let res = run_app(&mut terminal, editor);
|
|
|
|
disable_raw_mode()?;
|
|
execute!(
|
|
terminal.backend_mut(),
|
|
LeaveAlternateScreen,
|
|
DisableMouseCapture
|
|
)?;
|
|
terminal.show_cursor()?;
|
|
|
|
if let Err(err) = res {
|
|
println!("{:?}", err);
|
|
}
|
|
|
|
println!("🔍 Pattern validation demo completed!");
|
|
Ok(())
|
|
}
|