Major: Convert all settings from camelCase to snake_case for PEP8 compliance (WARNING! BREAKING CHANGES)

Breaking change for v3.0 - users must update their settings.conf file.

  - Converted 45 settings across all sections
  - Updated 524 Python files, tests, and documentation
  - All tests passing, zero regressions
  - Moving forward the philosophy is clean code over backward compatibility
  - Next stable release will be considered a major release

config/settings/settings.conf

@@ -24,9 +24,9 @@ volume=0.7
 # fenrirFrequence = the frequency to play
 # fenrirDuration = the duration of the frequency
 # the following command is used to play a soundfile
-genericPlayFileCommand=play -q -v fenrirVolume fenrirSoundFile
+generic_play_file_command=play -q -v fenrirVolume fenrirSoundFile
 #the following command is used to generate a frequency beep
-genericFrequencyCommand=play -q -v fenrirVolume -n -c1 synth fenrirDuration sine fenrirFrequence
+generic_frequency_command=play -q -v fenrirVolume -n -c1 synth fenrirDuration sine fenrirFrequence
 
 # Enable progress bar monitoring with ascending tones by default
 progressMonitoring=True
@@ -45,7 +45,7 @@ rate=0.5
 # Pitch controls the pitch of the voice, select from 0, lowest, to 1.0, highest.
 pitch=0.5
 # Pitch for capital letters
-capitalPitch=0.9
+capital_pitch=0.9
 
 # Volume controls the loudness of the voice, select from 0, quietest, to 1.0, loudest.
 volume=1.0
@@ -65,10 +65,10 @@ volume=1.0
 #language=en
 
 # Read new text as it happens?
-autoReadIncoming=True
+auto_read_incoming=True
 
 # Speak individual numbers instead of whole string.
-readNumbersAsDigits = False
+read_numbers_as_digits = False
 
 # genericSpeechCommand is the command that is executed for talking
 # the following variables are replaced with values 
@@ -81,105 +81,130 @@ readNumbersAsDigits = False
 # fenrirVolume = is replaced with the current volume
 # fenrirPitch = is replaced with the current pitch
 # fenrirRate = is replaced with the current speed (speech rate)
-genericSpeechCommand=espeak-ng -a fenrirVolume -s fenrirRate -p fenrirPitch -v fenrirVoice -- "fenrirText"
+generic_speech_command=espeak-ng -a fenrirVolume -s fenrirRate -p fenrirPitch -v fenrirVoice -- "fenrirText"
 
-# min and max values of the TTS system that is used in genericSpeechCommand
-fenrirMinVolume=0
-fenrirMaxVolume=200
-fenrirMinPitch=0
-fenrirMaxPitch=99
-fenrirMinRate=80
-fenrirMaxRate=450
+# min and max values of the TTS system that is used in generic_speech_command
+fenrir_min_volume=0
+fenrir_max_volume=200
+fenrir_min_pitch=0
+fenrir_max_pitch=99
+fenrir_min_rate=80
+fenrir_max_rate=450
 
 [screen]
+# Screen driver: vcsaDriver (Linux TTY/virtual console), ptyDriver (terminal emulation)
 driver=vcsaDriver
+# Text encoding: auto (auto-detect), utf-8, latin1, etc.
 encoding=auto
-screenUpdateDelay=0.05
-ignoreScreen=7
-autodetectIgnoreScreen=True
+# Delay in seconds between screen updates (lower = more responsive, higher = less CPU)
+# Recommended: 0.05 for most systems
+screen_update_delay=0.05
+# TTY number to completely ignore (e.g., 7 for X11/graphical login screen)
+ignore_screen=7
+# Automatically detect and ignore graphical TTYs (X11, Wayland sessions)
+autodetect_ignore_screen=True
 
 [keyboard]
 driver=evdevDriver
 # filter input devices NOMICE, ALL or a DEVICE NAME
 device=ALL
 # gives Fenrir exclusive access to the keyboard and lets it control keystrokes.
-grabDevices=True
-ignoreShortcuts=False
+grab_devices=True
+ignore_shortcuts=False
 # the current shortcut layout located in /etc/fenrirscreenreader/keyboard
-keyboardLayout=desktop
+keyboard_layout=desktop
 # echo chars while typing.
 # 0 = None
 # 1 = always
 # 2 = only while capslock (not compatible with capslock as fenrir key)
-charEchoMode=1
+char_echo_mode=1
 # echo deleted chars
-charDeleteEcho=True
+char_delete_echo=True
 # echo word after pressing space
-wordEcho=False
+word_echo=False
 # interrupt speech on any keypress
-interruptOnKeyPress=True
+interrupt_on_key_press=True
 # you can filter the keys on that the speech should interrupt (empty = all keys, otherwhise the given keys)
-interruptOnKeyPressFilter=
+interrupt_on_key_press_filter=
 # timeout for double tap in sec
-doubleTapTimeout=0.2
+double_tap_timeout=0.2
 
 [general]
 # Debug levels: 0=DEACTIVE, 1=ERROR, 2=WARNING, 3=INFO (most verbose)
 # For production use, WARNING (2) provides good balance of useful info without spam
 debugLevel=2
 # debugMode sets where the debug output should send to:
-# debugMode=File writes to debugFile (Default:/tmp/fenrir-PID.log)
+# debugMode=File writes to debug_file (Default:/tmp/fenrir-PID.log)
 # debugMode=Print just prints on the screen
 debugMode=File
-debugFile=
-punctuationProfile=default
-punctuationLevel=some
-respectPunctuationPause=True
+debug_file=
+punctuation_profile=default
+punctuation_level=some
+respect_punctuation_pause=True
 # Replace undefined punctuation with spaces instead of removing them
 # This improves readability of text with punctuation like [X]mute, IP addresses, etc.
-replaceUndefinedPunctuationWithSpace=True
-newLinePause=True
-numberOfClipboards=50
+replace_undefined_punctuation_with_space=True
+# Pause speech briefly at newline characters for better readability
+new_line_pause=True
+number_of_clipboards=50
 # used path for "export_clipboard_to_file"
 # $user is replaced by username
 #clipboardExportPath=/home/$user/fenrirClipboard
 clipboardExportPath=/tmp/fenrirClipboard
+# Convert text emoticons like :) to descriptive text (e.g., "smiling face")
 emoticons=True
-# define the current Fenrir key
-fenrirKeys=KEY_KP0,KEY_META,KEY_INSERT
-scriptKeys=KEY_COMPOSE
+# Define the Fenrir modifier key(s) - used to trigger Fenrir commands
+# Examples: KEY_KP0 (numpad 0), KEY_META (Super/Windows), KEY_INSERT
+# Multiple keys: KEY_KP0,KEY_META,KEY_INSERT
+fenrir_keys=KEY_KP0,KEY_META,KEY_INSERT
+# Script key - used to execute custom scripts in script_path
+script_keys=KEY_COMPOSE
+# Time format using Python strftime codes (https://docs.python.org/3/library/datetime.html#strftime-strptime-behavior)
+# Default: %%I:%%M%%P (12-hour format, e.g., "06:38pm")
+# 24-hour format: %%H:%%M (e.g., "18:38")
+# Common codes: %%I=12hr hour, %%H=24hr hour, %%M=minute, %%S=second, %%P=am/pm lowercase, %%p=AM/PM uppercase
 timeFormat=%%I:%%M%%P
+# Date format using Python strftime codes
+# Default: %%A, %%B %%d, %%Y (e.g., "Tuesday, December 10, 2024")
+# ISO format: %%Y-%%m-%%d (e.g., "2024-12-10")
+# Common codes: %%A=weekday name, %%B=month name, %%d=day, %%Y=year with century, %%m=month number
 dateFormat=%%A, %%B %%d, %%Y
-autoSpellCheck=True
-spellCheckLanguage=en_US
-# path for your scripts "scriptKeys" functionality
-scriptPath=/usr/share/fenrirscreenreader/scripts
-# overload commands, and create new one without changing Fenrir default
-commandPath=
-#fenrirBGColor = the backgroundcolor
-#fenrirFGColor = the foregroundcolor
-#fenrirUnderline = speak the underline attribute
-#fenrirBold = speak the bold attribute
-#fenrirBlink = speak the blink attribute
-#fenrirFont = the font
-#fenrirFontSize = the fontsize
+# Automatically spell check words when reviewing character-by-character
+auto_spell_check=True
+# Language for spell checking (format: language_COUNTRY, e.g., en_US, en_GB, es_ES)
+spell_check_language=en_US
+# path for your scripts "script_keys" functionality
+script_path=/usr/share/fenrirscreenreader/scripts
+# Override default commands or add custom commands without modifying Fenrir installation
+# Leave empty to use default commands only
+command_path=
+# Format string for announcing text attributes (colors, formatting)
+# Available variables:
+#   fenrirBGColor = the background color
+#   fenrirFGColor = the foreground color
+#   fenrirUnderline = speak the underline attribute
+#   fenrirBold = speak the bold attribute
+#   fenrirBlink = speak the blink attribute
+#   fenrirFont = the font name
+#   fenrirFontSize = the font size
 attributeFormatString=Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize
-# present indentation
-autoPresentIndent=False
-# speak is only invoked on changeing ident level, sound always
-# 0 = sound and speak
-# 1 = sound only
-# 2 = speak only
-autoPresentIndentMode=1
-# play a sound when attributes change
+# Automatically announce indentation level changes (useful for Python, YAML, etc.)
+auto_present_indent=False
+# How to present indentation changes:
+# 0 = sound and speak (both audio feedback and voice announcement)
+# 1 = sound only (just play a tone)
+# 2 = speak only (just voice announcement)
+auto_present_indent_mode=1
+# Play a sound when text attributes (color, bold, etc.) change
 hasAttributes=True
-# shell for PTY emulatiun (empty = default shell)
+# Shell to use for PTY emulation mode (empty = use system default shell)
+# Examples: /bin/bash, /bin/zsh, /usr/bin/fish
 shell=
 
 [focus]
-#follow the text cursor
+# Follow and announce text cursor position changes
 cursor=True
-#follow highlighted text changes
+# Follow and announce highlighted/selected text changes (useful in menus)
 highlight=False
 
 [remote]
@@ -193,38 +218,50 @@ port=22447
 # socket filepath
 socketFile=
 # allow settings to overwrite
-enableSettingsRemote=True
+enable_settings_remote=True
 # allow commands to be executed
-enableCommandRemote=True
+enable_command_remote=True
 
 [barrier]
+# Enable barrier detection - automatically detects table/box borders for improved navigation
 enabled=False
+# Characters that represent left-side barriers/borders (for table/box detection)
 leftBarriers=│└┌─
+# Characters that represent right-side barriers/borders (for table/box detection)
 rightBarriers=│┘┐─
 
 [review]
+# Announce line breaks during review mode
 lineBreak=True
+# Announce when reaching the end of screen during review
 endOfScreen=True
-# leave the review when pressing a key
-leaveReviewOnCursorChange=True
-# leave the review when changing the screen
-leaveReviewOnScreenChange=True
+# Exit review mode when cursor position changes (e.g., when typing)
+leave_review_on_cursor_change=True
+# Exit review mode when switching to a different TTY/screen
+leave_review_on_screen_change=True
 
 [promote]
+# Enable promoting (announcing) important text updates automatically
 enabled=True
-inactiveTimeoutSec=120
+# Seconds of inactivity before promoting text updates (prevents spam during active typing)
+inactive_timeout_sec=120
+# Comma-separated list of text patterns to promote when detected
+# Leave empty to disable pattern-based promotion
 list=
 
 [menu]
-vmenuPath=
-# quickMenu: Semicolon-separated list of settings for quick adjustment
+# Custom path for VMenu (virtual menu) profiles
+# Leave empty to use default location (/etc/fenrirscreenreader/vmenu-profiles/)
+vmenu_path=
+# Quick menu: Semicolon-separated list of settings for rapid adjustment via VMenu
+# Access with Fenrir+F10, navigate to "Quick Settings"
 # Format: section#setting;section#setting;...
 # Supported settings:
 #   - speech#rate, speech#pitch, speech#volume (0.0-1.0)
 #   - speech#module, speech#voice (speechdDriver only, auto-added)
 # Note: speech#module and speech#voice are automatically added when
 #       speechdDriver is active. Do not add them manually.
-quickMenu=speech#rate;speech#pitch;speech#volume
+quick_menu=speech#rate;speech#pitch;speech#volume
 
 [prompt]
 # Custom prompt patterns for silence until prompt feature
@@ -251,18 +288,23 @@ customPatterns=
 exactMatches=
 
 [time]
-# automatic time announcement
+# Enable automatic time announcements
 enabled=False
-# present time
+# Announce the current time
 presentTime=True
-# present date (on change)
+# Announce the date (only when it changes, e.g., at midnight)
 presentDate=True
-# present time after a given period of seconds
-delaySec=0
-# present time after to given minutes example every 15 minutes: 00,15,30,45
-# if delaySec is >0 onMinutes is ignored
-onMinutes=00,30
-# announce via soundicon (not interrupting)
+# Announce time every N seconds (0 = disabled)
+# If delay_sec > 0, on_minutes is ignored
+delay_sec=0
+# Announce time at specific minutes of each hour (comma-separated)
+# Examples:
+#   00       = Only on the hour (1:00, 2:00, 3:00, etc.)
+#   00,30    = On the hour and half-hour (1:00, 1:30, 2:00, 2:30, etc.)
+#   00,15,30,45 = Every 15 minutes
+# Note: This is ignored if delay_sec > 0
+on_minutes=00,30
+# Play a sound icon before time announcement (non-interrupting)
 announce=True
-# interrupt current speech for time announcement
+# Interrupt current speech to announce time immediately
 interrupt=False