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50 lines
1.3 KiB
50 lines
1.3 KiB
# Checks if a file can be autoloaded by trying to load it in a subshell. |
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function autoloadable() { |
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( unfunction $1 ; autoload -U +X $1 ) &> /dev/null |
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} |
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# Checks boolean variable for "true" (case insensitive "1", "y", "yes", "t", "true", "o", and "on"). |
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function check-bool { |
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[[ -n "$1" && "$1" == (1|[Yy]([Ee][Ss]|)|[Tt]([Rr][Uu][Ee]|)|[Oo]([Nn]|)) ]] |
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} |
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# Trap signals were generated with 'kill -l'. |
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# DEBUG, EXIT, and ZERR are Zsh signals. |
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TRAP_SIGNALS=( |
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ABRT ALRM BUS CHLD CONT EMT FPE HUP ILL INFO INT IO KILL PIPE PROF QUIT |
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SEGV STOP SYS TERM TRAP TSTP TTIN TTOU URG USR1 USR2 VTALRM WINCH XCPU XFSZ |
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DEBUG EXIT ZERR |
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) |
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# Adds a function to a list to be called when a trap is triggered. |
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function add-zsh-trap { |
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if (( $# < 2 )); then |
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print "Usage: $0 type function" |
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return 1 |
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fi |
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if [[ -z "$TRAP_SIGNALS[(r)$1]" ]]; then |
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print "$0: unknown signal: $1" |
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return 1 |
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fi |
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local trap_functions="TRAP${1}_FUNCTIONS" |
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if (( ! ${(P)+trap_functions} )); then |
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typeset -gaU "$trap_functions" |
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fi |
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eval "$trap_functions+="$2"" |
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if (( ! $+functions[TRAP${1}] )); then |
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eval " |
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function TRAP${1}() { |
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for trap_function in \"\$TRAP${1}_FUNCTIONS[@]\"; do |
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if (( \$+functions[\$trap_function] )); then |
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\"\$trap_function\" \"\$1\" |
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fi |
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done |
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return \$(( 128 + \$1 )) |
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} |
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" |
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fi |
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} |
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