refactor: update `zsh-fast-syntax-highlighting` plugin

1 files changed, 159 insertions, 0 deletions

diff --git a/.config/shell/zsh-fast-syntax-highlighting/→chroma/-ssh.ch b/.config/shell/zsh-fast-syntax-highlighting/→chroma/-ssh.ch
new file mode 100644
index 0000000..1d5e257
--- /dev/null
+++ b/.config/shell/zsh-fast-syntax-highlighting/→chroma/-ssh.ch
@@ -0,0 +1,159 @@
+# -*- mode: sh; sh-indentation: 4; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
+# Copyright (c) 2018 Sebastian Gniazdowski
+# Copyright (C) 2019 by Philippe Troin (F-i-f on GitHub)
+#
+# Tracks ssh command and emits message when one tries to pass port to hostspec.
+#
+# $1 - 0 or 1, denoting if it's first call to the chroma, or following one
+#
+# $2 - the current token, also accessible by $__arg from the above scope -
+#      basically a private copy of $__arg; the token can be eg.: "grep"
+#
+# $3 - a private copy of $_start_pos, i.e. the position of the token in the
+#      command line buffer, used to add region_highlight entry (see man),
+#      because Zsh colorizes by *ranges* in command line buffer
+#
+# $4 - a private copy of $_end_pos from the above scope
+#
+
+emulate -LR zsh
+setopt extended_glob warn_create_global typeset_silent
+
+# This chroma guards that port number isn't passed in hostname (no :{port} occurs).
+
+(( next_word = 2 | 8192 ))
+
+local __first_call="$1" __wrd="$2" __start_pos="$3" __end_pos="$4"
+local __style check_port=0 host_start_offset host_style user_style possible_host
+local -a match mbegin mend completions_users completions_host
+
+# First call, i.e. command starts, i.e. "grep" token etc.
+(( __first_call )) && {
+    FAST_HIGHLIGHT[chroma-ssh-counter]=0
+    FAST_HIGHLIGHT[chroma-ssh-counter-all]=1
+    FAST_HIGHLIGHT[chroma-ssh-message]=""
+    FAST_HIGHLIGHT[chroma-ssh-skip-two]=0
+    return 1
+} || {
+    # Following call, i.e. not the first one.
+
+    # Check if chroma should end – test if token is of type
+    # "starts new command", if so pass-through – chroma ends
+    [[ "$__arg_type" = 3 ]] && return 2
+
+    if (( in_redirection > 0 || this_word & 128 )) || [[ $__wrd == "<<<" ]]; then
+        return 1
+    fi
+
+    (( FAST_HIGHLIGHT[chroma-ssh-counter-all] += 1 ))
+
+    if [[ "$__wrd" = -* ]]; then
+        # Detected option, add style for it.
+        [[ "$__wrd" = --* ]] && __style=${FAST_THEME_NAME}double-hyphen-option || \
+                                __style=${FAST_THEME_NAME}single-hyphen-option
+        if [[ "$__wrd" = (-b|-c|-D|-E|-e|-F|-I|-i|-J|-L|-l|-m|-O|-o|-p|Q|R|-S|-W|-w) ]]; then
+            FAST_HIGHLIGHT[chroma-ssh-skip-two]=1
+        fi
+    else
+        if (( FAST_HIGHLIGHT[chroma-ssh-skip-two] )); then
+            FAST_HIGHLIGHT[chroma-ssh-skip-two]=0
+        else
+            # Count non-option tokens.
+            (( FAST_HIGHLIGHT[chroma-ssh-counter] += 1 ))
+            if [[ "${FAST_HIGHLIGHT[chroma-ssh-counter]}" -eq 1 ]]; then
+                if [[ $__arg = (#b)(([^@]#)(@)|)(*) ]]
+                then
+                    [[ -n $match[2] ]] \
+                        && {
+                            user_style=
+                            () {
+                                # Zstyle clobbers reply for sure
+                                zstyle -a ":completion:*:users" users completions_users
+                            }
+                            if (( $#completions_users )); then
+                                [[ $match[2] = ${~${:-(${(j:|:)completions_users})}} ]] \
+                                    && user_style=${FAST_THEME_NAME}correct-subtle \
+                                    || user_style=${FAST_THEME_NAME}incorrect-subtle
+                            elif (( $#userdirs )); then
+                                [[ -n $userdirs[$match[2]] ]] \
+                                    && user_style=${FAST_THEME_NAME}correct-subtle \
+                                    || user_style=${FAST_THEME_NAME}incorrect-subtle
+                            fi
+                            [[ -n $user_style ]] \
+                                && (( __start=__start_pos-${#PREBUFFER}, __end=__end_pos-${#PREBUFFER}-(mend[5]-mend[2]), __start >= 0 )) \
+                                && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[$user_style]}")
+                        }
+                    [[ -n $match[3] ]] \
+                        && (( __start=__start_pos-${#PREBUFFER}+(mbegin[3]-mbegin[1]), __end=__end_pos-${#PREBUFFER}-(mend[5]-mend[3]), __start >= 0 )) \
+                        && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}subtle-separator]}")
+
+                    host_style=
+                    case $match[4] in
+                        (<->|<0-255>.<0-255>.<0-255>.<0-255>)
+                            host_style=${FAST_THEME_NAME}mathnum
+                            check_port=1
+                            ;;
+                        (([0-9a-fA-F][0-9a-fA-F:]#|)::([0-9a-fA-F:]#[0-9a-fA-F]|)|[0-9a-fA-F]##:[0-9a-fA-F:]#[0-9a-fA-F])
+                            host_style=${FAST_THEME_NAME}mathnum
+                            ;;
+                        (*)
+                            check_port=1
+                            ;;
+                    esac
+                    possible_host=$match[4]
+                    (( host_start_offset = mbegin[4] - mbegin[1], host_end_offset = 0 ))
+
+                    if (( check_port )) && [[ $possible_host = (#b)(*)(:[0-9]##) ]]; then
+                        (( __start=__start_pos-${#PREBUFFER}+(host_start_offset+mbegin[2]-mbegin[1]), __end=__end_pos-host_end_offset-${#PREBUFFER}, __start >= 0,
+                           host_end_offset+=mend[2]-mend[1] )) \
+                            && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[${FAST_THEME_NAME}incorrect-subtle]}") \
+                            && possible_host=$match[1] \
+                            && FAST_HIGHLIGHT[chroma-ssh-message]+="Format of hostname incorrect, use -p to pass port number"
+
+                    fi
+
+                    if [[ -z $host_style ]]; then
+                        () {
+                            # Zstyle clobbers reply for sure
+                            local mbegin mend match reply
+                            zstyle -a ":completion:*:hosts" hosts completions_host
+                        }
+                        (( ! $#completions_host && $+_cache_hosts )) && completions_host=($_cache_hosts[*])
+                        if (( $#completions_host )); then
+                                [[ $possible_host = ${~${:-(${(j:|:)completions_host})}} ]] \
+                                    && host_style=${FAST_THEME_NAME}correct-subtle \
+                                    || host_style=${FAST_THEME_NAME}incorrect-subtle
+                        fi
+                    fi
+
+                    [[ -n $host_style ]] \
+                        && (( __start=__start_pos-${#PREBUFFER}+host_start_offset, __end=__end_pos-${#PREBUFFER}-host_end_offset, __start >= 0 )) \
+                        && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[$host_style]}")
+                else
+                    __style=${FAST_THEME_NAME}incorrect-subtle
+                fi
+
+                (( next_word = 1 ))
+
+            fi
+        fi
+    fi
+
+    if (( ${#${(z)BUFFER}} <= FAST_HIGHLIGHT[chroma-ssh-counter-all] )); then
+        [[ -n "${FAST_HIGHLIGHT[chroma-ssh-message]}" ]] && zle -M "${FAST_HIGHLIGHT[chroma-ssh-message]}"
+    fi
+}
+
+# Add region_highlight entry (via `reply' array).
+#
+# This is a common place of adding such entry, but any above code
+# can do it itself and skip setting __style to disable this code.
+[[ -n "$__style" ]] && (( __start=__start_pos-${#PREBUFFER}, __end=__end_pos-${#PREBUFFER}, __start >= 0 )) && reply+=("$__start $__end ${FAST_HIGHLIGHT_STYLES[$__style]}")
+
+# We aren't passing-through (no return 1 occured), do obligatory things ourselves.
+(( this_word = next_word ))
+_start_pos=$_end_pos
+
+return 0
+
+# vim:ft=zsh:et:sw=4