These could certainly be improved upon, but they suit my needs perfectly.

This is a style of cursor seek which stops before an alphanumeric/token rather than jumping inside of words (ie to remove up to the word-start or back to the word-end. I was deleting half of my variable names all the time without this).

The rest are some familiar behaviours like cutting/copying entire line if marker and cursor are in the same place. And then there's buffer start/end jump, which is always handy.

Maybe some of you will find them useful.

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#include "4coder_helper/4coder_helper.h"
#include "4coder_helper/4coder_long_seek.h"

#define right 1
#define left 0

static void
cwm_first_boundary_seek(Application_Links *app, int32_t seek_type){
    uint32_t access = AccessProtected;        
    View_Summary view = get_active_view(app, access);
    Buffer_Summary buffer = get_buffer(app, view.buffer_id, access);
    
    char c = 0;
    int32_t pos = view.cursor.pos;
    if(seek_type == left)
        pos--;
    
    if(buffer_read_range(app, &buffer, pos, pos+1, &c)){
        pos = buffer_boundary_seek(app, &buffer, view.cursor.pos, seek_type, BoundaryToken | BoundaryWhitespace |  BoundaryAlphanumeric | BoundaryCamelCase);
        view_set_cursor(app, &view, seek_pos(pos), true);
        if(char_is_whitespace(c)){
            //hacky reverse search to correct greedy seek!
            if(seek_type == left) exec_command(app,seek_white_or_token_right);
            else exec_command(app,seek_white_or_token_left);
        }
    }
}



CUSTOM_COMMAND_SIG(cwm_seek_boundary_right){
    cwm_first_boundary_seek(app, right);
}

CUSTOM_COMMAND_SIG(cwm_seek_boundary_left){
    cwm_first_boundary_seek(app, left); 
}

#undef right
#undef left

CUSTOM_COMMAND_SIG(cwm_delete_to_boundary_left){
    uint32_t access = AccessOpen;
    
    View_Summary view = get_active_view(app, access);
    Buffer_Summary buffer = get_buffer(app, view.buffer_id, access);
    
    if (buffer.exists){
        int32_t pos2 = 0, pos1 = 0;
        
        pos2 = view.cursor.pos;
        exec_command(app, cwm_seek_boundary_left);
        refresh_view(app, &view);
        pos1 = view.cursor.pos;
        
        buffer_replace_range(app, &buffer, pos1, pos2, 0, 0);
    }
}

CUSTOM_COMMAND_SIG(cwm_delete_to_boundary_right){
    uint32_t access = AccessOpen;
    
    View_Summary view = get_active_view(app, access);
    Buffer_Summary buffer = get_buffer(app, view.buffer_id, access);
    
    if (buffer.exists){
        int32_t pos2 = 0, pos1 = 0;
        
        pos1 = view.cursor.pos;
        exec_command(app, cwm_seek_boundary_right);
        refresh_view(app, &view);
        pos2 = view.cursor.pos;
        
        buffer_replace_range(app, &buffer, pos1, pos2, 0, 0);
    }
}


CUSTOM_COMMAND_SIG(cwm_mark_line){
    exec_command(app, seek_beginning_of_line);
    exec_command(app, set_mark);
    exec_command(app, move_down);
    exec_command(app, seek_beginning_of_line);
}



CUSTOM_COMMAND_SIG(cwm_cut_line){
    exec_command(app, cwm_mark_line);
    exec_command(app, cut);
}


CUSTOM_COMMAND_SIG(cwm_copy){
    uint32_t access = AccessProtected;
    View_Summary view = get_active_view(app, access);
    Range range = get_range(&view);
    if(range.min == range.max){
        exec_command(app, cwm_mark_line);
        exec_command(app, copy);
        exec_command(app, move_up);
    }else{
        exec_command(app, copy);
    }
}

CUSTOM_COMMAND_SIG(cwm_cut){
    uint32_t access = AccessOpen;
    View_Summary view = get_active_view(app, access);
    Range range = get_range(&view);
    if(range.min == range.max){
        exec_command(app, cwm_mark_line);
    }
    exec_command(app, cut);
}


CUSTOM_COMMAND_SIG(cwm_seek_file_start){
    uint32_t access = AccessProtected;
    
    View_Summary view = get_active_view(app, access);
    Buffer_Summary buffer = get_buffer(app, view.buffer_id, access);
    view_set_cursor(app, &view, seek_pos(0), false);
}

CUSTOM_COMMAND_SIG(cwm_seek_file_end){
    uint32_t access = AccessProtected;
    
    View_Summary view = get_active_view(app, access);
    Buffer_Summary buffer = get_buffer(app, view.buffer_id, access);
    view_set_cursor(app, &view, seek_pos(buffer.size), false);
}