10_terminal: Add axzsh_is_utf_terminal and isutfenv functions

[ax-zsh.git] / core / 10_terminal / 10_terminal.zshrc

diff --git a/core/10_terminal/10_terminal.zshrc b/core/10_terminal/10_terminal.zshrc
index fa27ed7f5919502d092e1015f08fca2b8b75a67c..614bf3dca86877e06c701bcdae34191edfc2e904 100644 (file)
--- a/core/10_terminal/10_terminal.zshrc
+++ b/core/10_terminal/10_terminal.zshrc
@@ -1,6 +1,19 @@
 # AX-ZSH: Alex' Modular ZSH Configuration
 # 10_terminal.zshrc: Initialize terminal settings
 
+# Common helper functions
+
+# Check if terminal supports Unicode.
+# <https://wiki.grml.org/doku.php?id=utf8>
+function axzsh_is_utf_terminal {
+       case "$LANG $CHARSET $LANGUAGE" in
+               (*utf*) return 0 ;;
+               (*UTF*) return 0 ;;
+               (*) return 1 ;;
+       esac
+}
+alias isutfenv=axzsh_is_utf_terminal
+
 # Set terminal title
 
 # Set terminal "hardstatus" and "icon title"
@@ -14,8 +27,17 @@ function axzsh_terminal_set_window_title {
        printf '\e]2;%s\a' "$1"
 }
 
+# Test for "modern" terminal
+function axzsh_is_modern_terminal {
+       [[ "$TERM" = screen* ]] && return 0
+       [[ "$TERM" = tmux* ]] && return 0
+       [[ "$TERM" = xterm* ]] && return 0
+       return 1
+}
+
 # Update terminal titles befor echoing the shell prompt
 function axzsh_terminal_title_precmd {
+       axzsh_is_modern_terminal || return
        axzsh_terminal_set_icon_title 'zsh'
        if [[ "$TERM_PROGRAM" == "Apple_Terminal" && "$TERM" != "screen"* ]]; then
                axzsh_terminal_set_window_title "$LOGNAME@$SHORT_HOST"
@@ -31,10 +53,13 @@ precmd_functions+=(axzsh_terminal_title_precmd)
 
 # Update terminal titles befor executing a command
 function axzsh_terminal_title_preexec {
+       axzsh_is_modern_terminal || return
+
        local cmd="${1[(w)1]}"
        local remote=""
+
        case "$cmd" in
-         "mosh"*|"ssh"*|"telnet"*)
+         "mosh"*|"root"*|"ssh"*|"telnet"*)
                remote=1
                ;;
        esac